Pyrot Planning Guide3.5 MB - Viessmann

PYROTWood boiler 100 to 540 kWTechnical guidePYROT ROTATION COMBUSTIONSYSTEMFully automatic wood boilerfor the combustion of dry woodchips and pellets5822 516 GB 05/2010

Index (cont.)6.13 Fuel discharge by means of funnel discharge ............................................................ 59■ Funnel discharge .................................................................................................... 59■ Additional outlet flange ............................................................................................ 60■ Funnel, large .......................................................................................................... 606.14 Fuel discharge by means of push floor (sizing) .......................................................... 60■ Number and length of the pushrods with a maximum dumping height ................... 60■ Specification for the pushrod drives ........................................................................ 61■ Forces on the building ............................................................................................. 61■ Slot discharge, for pulling ........................................................................................ 62■ Centre discharge ..................................................................................................... 63■ Slot discharge with fill function ................................................................................ 656.15 Fuel discharge by means of push floor (accessory) ................................................... 67■ Pushrod drive, individual ......................................................................................... 67■ Weld base, pushrod drive, individual ...................................................................... 67■ Pushrod drive, twin ................................................................................................ 67■ Weld base, pushrod drive, twin ............................................................................... 67■ Weld base, bunker .................................................................................................. 67■ Pushrod ................................................................................................................... 68■ Hydraulic drive, AS individual ................................................................................. 68■ Hydraulic drive, AS twin .......................................................................................... 69■ Push floor screw conveyor D = 190 mm ................................................................. 69■ Push floor screw conveyor D = 250 mm ................................................................. 69■ Drive, push floor screw conveyor, standard ............................................................ 70■ Drive, push floor screw conveyor, higher-power ..................................................... 70■ Cover, push floor screw conveyor ........................................................................... 706.16 Charging the boiler with fuel ....................................................................................... 70■ Trough screw conveyor ........................................................................................... 70■ Drive, trough screw conveyor, standard ................................................................. 71■ Pipe screw conveyor ............................................................................................... 71■ Drive, pipe screw conveyor, pellet .......................................................................... 73■ Drive, pipe screw conveyor, standard ..................................................................... 74■ Drive, pipe screw conveyor, high-power ................................................................. 746.17 Fuel storage in on-site pellet store (sizing) ................................................................. 74■ Sizing the pellet storage room ................................................................................ 74■ Pellet storage room design and required system components ............................... 75■ Additional safety instructions for pellet stores ......................................................... 76■ Protective boards with Z brackets ........................................................................... 76■ Fill connector and return connector ........................................................................ 766.18 Fuel storage in on-site pellet store (accessories) ....................................................... 79■ Deflector 1.42 x 1.25 m ........................................................................................... 79■ Fill connector and return connector, straight ........................................................... 79■ Fill connector and return connector, 45° ................................................................. 79■ Extension of fill connector and return connector ..................................................... 806.19 Fuel storage in on-site bunker (accessories) .............................................................. 80■ Silo cover, manual FDM 2.9/1.3 m .......................................................................... 80■ Bunker cover hydraulic FDH ................................................................................... 81■ Fall protection grille 120 for FDH ........................................................................... 83■ Fall protection grille 200 for FDH ........................................................................... 83■ Bunker cover, movable FDB ................................................................................... 83■ Fall protection grille, 120 for FDB ........................................................................... 85■ Fall protection grille, 200 for FDB .......................................................................... 85■ Shaker motor for fall protection grille ...................................................................... 85■ Hydraulic drive, bunker charging cover, ASH ......................................................... 85■ Cover drives for hydraulic drive, ASH .................................................................... 86■ Silo filling screw conveyor FS 300 .......................................................................... 86■ Drive, silo filling screw conveyor ............................................................................ 866.20 Back burning protection .............................................................................................. 87■ Rotary lock valve ..................................................................................................... 87■ Shut-off gate valve MA 220 ..................................................................................... 88■ Downpipe L = 1.0 m ................................................................................................ 88■ Special adaptor ....................................................................................................... 886.21 Connection on the flue gas side ................................................................................. 89■ Chimney .................................................................................................................. 89■ Flue pipe (sizing) ..................................................................................................... 89■ Flue gas routing (accessories) ................................................................................ 896.22 Sound insulation ......................................................................................................... 90■ Braces ..................................................................................................................... 907. Appendix 7. 1 Sizing the expansion vessel ....................................................................................... 90■ Selection example ................................................................................................... 914 PYROT5822 516 GB

Index (cont.)7. 2 General information regarding low pressure hot water boilers with safety temperaturesof up to 110 ºC ............................................................................................................ 917. 3 Pipe connections ........................................................................................................ 917. 4 Electrical installation ................................................................................................... 927. 5 Operating instructions ................................................................................................. 927. 6 Flue system ................................................................................................................ 927. 7 Checks as part of the Building Regulations approval process .................................... 928. Keyword index .............................................................................................................................................. 935822 516 GBPYROT 5

Principles of wood combustion1.1 Principles of pellet combustion for generating heat1What are wood pellets?Wood pellets are made from 100% natural wood remnants. This raw material is waste matter created by the wood industry in large volumesthrough planing or sawing. Wood remnants are compressed under high pressure and formed into pellets, i.e. pressed into a cylindrical shape.The raw material is stored and transported in completely dry conditions. The system user should also ensure completely dry storage conditions.Optimum and effective combustion can only be ensured under these conditions.Fuel requirementsFor combustion in the PYROT, use pellets with a diameter of 6 mm, alength from 5 to 30 mm (20 % up to 45 mm) with a maximum residualmoisture content of 10 %.The wood pellets used for combustion in the PYROT must correspondto the requirements of DINplus or ÖNORM M 7135.Requirements DINplus ÖNORMM 7135Abrasion resistance % ≤ 2.3 ≤ 2.3Raw density kg/dm 3 ≥ 1.12 ≥ 1.12Water content % ≤ 10 ≤ 10Ash content % ≤ 0.5 ≤ 0.5Net calorific value MJ/kg ≥ 18 ≥ 18kWh/kg ≥ 5 ≥ 5Sulphur content % ≤ 0.04 ≤ 0.04Chlorine content % ≤ 0.02 ≤ 0.02Nitrogen content % ≤ 0.3 ≤ 0.3Compression additive % ≤ 2 ≤ 2Ext. production control yes –Forms of deliveryIn their loose form, pellets are transported by silo tanker and pumpedinto the storage room via a hose system.Quality characteristicsHigh quality pellets:■ Smooth shiny surface■ Uniform length■ Low proportion of dust■ Sink in waterLow quality pellets:■ Cracked rough surface■ Severely varying length■ High proportion of dust■ Float in waterCareful handling of pellets enables a low proportion of dust, troublefreeboiler charging and a constant wood boiler output.1.2 Principles of woodchip combustion for generating heatWhat are woodchips?Woodchips are made from 100 % natural wood from forests and plantations. This raw material comes in the form of trunks or branches. Thewood is then processed with high speed cutting tools in accordance with ÖNORM M 7133.The raw material is stored and transported in completely dry conditions. The system user should also ensure completely dry storage conditions.Optimum and effective combustion can only be ensured under these conditions.Fuel requirementsFor combustion in the PYROT, use woodchips with a maximum coarsepercentage of 20 %, a maximum cross-section of 5 cm² and a maximumlength of 12 cm (5 % with max. 16 cm).Bulk density S (kg/m³, water content W (%), size G (mm) as per ÖNORM M 7133S 200 W20 G30/50 Soft natural woodchips from forestsS 250 W20 to W35 G30/50 Soft natural woodchips from forestsS 300 W20 to W35 G30/50 Soft/hard natural woodchips from forestsS 300 W35 to W50 G30/50 Soft natural woodchips from forestsS 350 W20 to W35 G30/50 Hard natural woodchips from forestsQuality characteristicsHigh quality woodchips:■ As per ÖNORM M 7133■ Size G30 or G50■ Max. 5 % outliers■ Smooth surfacesLow quality woodchips:■ Frayed surface■ More than 5 % outliers■ Coarse percentage higher than 20 %■ Greater than G30 or G505822 516 GB6 PYROT

Principles of wood combustion (cont.)1.3 Minimum wood fuel requirementsContentWhen procuring wood for combustion, it is important to ensure thatforeign matter (e.g. stones, metal parts, brick fragments, plastics, etc.)is avoided. This changes the composition of the fuel and therefore thecritical parameters of the combustion process.The values must not exceed or fall below the following limits (per kg ofdry fuel) for the non-combustible content (ash at an analysis temperatureof 815 °C):1Limit Comparison with natural wood from forestsChlorine Cl mg/kg max. 300 10Sulphur S mg/kg max. 1000 120Total Cl, S mg/kg max. 1000 130Ash content total g/kg max. 15.0 5.0Alkali oxides in the ash (K 2 O and Na 2 O) g/kg max. 1.0 0.35SB start of ash sintering °C min. 1000 approx. 1200A consequence of exceeding the above limits is a shortened servicelife of the combustion chamber and wood boiler. This also means thatmaintenance work is increased and service intervals are reduced.The proportion of dust-like and fine-grain materials should also beminimised (in accordance with ÖNORM M 7133).Non-wood biomass fuelsNon-wood biomass fuels, such as needles, leaves, grain, straw, husks,fruit kernels, etc., are generally unsuitable as a fuel for trouble-freeoperation and are therefore not permissible.In some cases, the fuel properties (essential composition, ash sinteringpoint, etc.) differ considerably from those of wood. Combustion ina Pyrot may lead to impairment of the combustion characteristics andto greater stress on the fireclay lining and the heat exchanger surfaces.Warranty claims can therefore only be asserted when using permissiblefuels.Wood fuel regulations and standardsGermany Revised first version of BImSchV dated 22.03.2010AustriaFAV dated 18.11.1997 "Ordinance for Combustion Systems" § 3.(1) 3. Solid fuelsSwitzerland Clean air regulations LRV dated 16.12.1985 (as of 28.03.2000)ÖNORM M 7133 Woodchips for energy purposes (1998)EN 303-5Boilers for solid fuels, table 8 "Test fuels"CEN/TS 14961 Solid biofuels5822 516 GBPYROT 7

PYROT rotation combustion2.1 Product description2A Controlled secondary air with rotary fanB Rotary combustion chamberC Boiler heat exchangerD Safety heat exchangerE Flue gas fan with Lambda probe and temperature sensorF Pneumatic cleaningG Flue gas recirculation, controllableH Regulated primary airK Ignition fanL Fully moving grateM Ash removalWith its patented rotation combustion, the Pyrot wood boiler representsstate of the art wood combustion. A supply screw conveyor continuouslyguides the wood fuel onto a moving grate on which the fuelcombustion takes place. Continuous gasification takes place under airstarvation. A rotary fan is used to mix rising combustion gases with thesecondary air displaced in a rotary motion. This ensures thoroughmixing with the combustion gases.Clean and efficient combustionThe proven combustion technology in the Pyrot achieves similar emissionsvalues to those of a modern gas combustion system and keepsthe release of CO, NOx and dust particles to a minimum, subject tofuel type. The combination of combustion technology and digital modulatingoutput control enables efficiency levels of up to 92 %.Mobile containerised heating centrePyrot wood boilers are available as containerised complete solutionsfor uses where there are no boiler houses available or where the onsitebuilding costs have to be reduced to a minimum. This completesolution incorporates the pre-assembled wood boiler inside a specialcontainer with all ancillary devices. In addition to finished containersolutions, individual versions can be specially matched to yourneeds.Benefits at a glance■ High efficiency levels (up to 92 %) and low emissions through regulatedprimary and secondary air supply and low particle combustion■ Two-pass heat exchanger and modulating output control (4:1 controlrange)■ Automatic ignition prevents having to maintain the incandescent bedand saves fuelDelivered conditionPre-assembled steel boiler for wood pellets and woodchips accordingto DINplus and ÖNORM M 7135.Combustion chamber door, ash doors, ash boxes, cleaning device.1 supply screw conveyor with separating barrier, incl. extinguishingvalve with dirt trap1 flue gas fan1 extinguishing water container with holder1 automatic ignition system1 set displacer rods1 recirculation gas device1 secondary air device (draught stabiliser); for on-site installation in theflue pipeSensors:■ Infrared light barrier for level monitoring, separating barrier, supplyscrew conveyor■ Safety limit switch on inspection cover of supply screw conveyor■ Easy service thanks to fully automatic ash removal, optional pneumaticcleaning system and flue gas dust extractor■ Highly developed safety devices ensure a safe and reliable operation■ Individual planning of your system by our team of experts■ Available as a complete ready-to-use containerised solution■ Contact sensor Pt100 at the supply screw conveyor■ Infrared light barriers for level monitoring of the fuel in the combustionchamber■ Zirconium dioxide probe with measured value transducer■ Flue gas temperature sensor PT-100■ Return temperature sensor KTY■ Boiler water temperature sensor KTY■ High limit safety cut-out (STB)■ Temperature sensor, rotary fan■ Sensor KTY with sensor well5822 516 GB8 PYROT

PYROT rotation combustion (cont.)2.2 SpecificationSpecificationTrade name Pyrot rotation combustionRated output kW 100 150 220 300 400 540Part no.: 7423 656 7423 657 7423 658 7423 659 7423 660 7423 661Output dataRated output kW 100 150 220 300 400 540Continuous output *1 kW 90 135 200 270 360 480Minimum output Q *2 minkW 30 45 60 80 100 140Heating data– Content on hot gas side l 325 374 744 883 1340 1613– Permissible shutdown temperature of °C 100 100 100 100 100 100the high limit safety cut-out.– Minimum return temperature °C 65 65 65 65 65 65– Grate ash container capacity l 26 32 45 55 75 91– Ash container capacity, flue gas dust l 90 90 90 90 90 90extractorBoiler water content l 395 432 794 903 1326 1510Pressure drop on the DHW side mbar 38 33 76 42 29 56Permiss. operating pressureTest pressure bar 5 5 5 5 5 5Maximum operating pressure bar 3 3 3 3 3 3Heating surface m 2 8.28 10.78 16.4 20.72 28.76 39.36CE designation CE CE CE CE CE CEBoiler class to DIN EN 303-5 3 3 3 3 3 3Overall dimensionsTotal length (with door open) mm 2870 3120 3424 3780 4004 4232Total width mm 1050 1050 1330 1330 1570 1570Total width (with supply screw conveyor) mm 2070 2180 2350 2350 2590 2590Total height mm 1825 1825 2084 2084 2422 2492Total height (with induced draught fan) mm 2236 2266 2526 2534 2832 2902Total weight– Boiler *3 kg 1278 1451 2119 2441 3235 3671– Combustion block kg 432 477 581 641 778 937– Displacer rods kg 68 87 141 163 220 289– Flue gas fan kg 37 40 40 45 62 62– Supply screw conveyor kg 143 143 143 143 143 149– Total dry weight *4 kg 1958 2198 3024 3433 4438 5108– Total wet weight kg 2353 2630 3818 4336 5764 6618Max. power consumption– During ignition W 1600 1600 1600 1600 1600 1600– Electrical connections (total) W 2670 2670 2850 3600 3980 3630– Supply screw conveyor W 370 370 550 1100 1100 750– Rotary fan W 120 120 120 120 120 120– Flue gas fan W 550 550 550 750 1100 1100– Grate drive W 30 30 30 30 60 60– Electrical power consumption with Q N W 850 1032 1108 1521 1868 1753– Electrical power consumption with Q min W 280 355 369 434 480 460Boiler connectionsBoiler flow and return G 2 fem. 2 fem. DN80 PN6 DN80 PN6 DN100 PN6 DN100 PN6Extinguishing water connection R ¾ ¾ ¾ ¾ ¾ ¾Boiler drain valve Rp 1 ½ 1 ½ 1 ½ 1 ½ 1 ½ 1 ½Safety heat exchanger 2x R ½ ½ ½ ½ ½ ½Sensor well for TS Rp ½ ½ ½ ½ ½ ½25822 516 GB*1 Levelled output as base load boiler in continuous operation with pneumatic cleaning*2 Q ≥ Q min : Output operation modulating control (variable output control)Q ≤ Q min : Low load with ON Q min / OFF (Stop and Go operation)*3 Incl. door and refractory concrete lining*4 Incl. displacer rodsPYROT 9

PYROT rotation combustion (cont.)2Trade name Pyrot rotation combustionRated output kW 100 150 220 300 400 540Part no.: 7423 656 7423 657 7423 658 7423 659 7423 660 7423 661Flue gas *5Average temperature (gross *6 )– Average flue gas temperature with Q *7 N°C 160 160 160 160 160 160– Average flue gas temperature with Q min °C 130 130 130 130 130 130Mass flow rate– Q N ; W5; O 2 6 % g/s 53.6 80.4 117.9 160.8 214.4 289.44– Q W35 ; W35; O 2 8 % g/s 71.3 106.9 156.9 213.9 285.2 385.1Flow rate– Q N ; W5; O 2 6 %; 150 °C m 3 /s 0.06 0.09 0.14 0.19 0.25 0.35– Q W35 ; W35; O 2 8 %; 150 °C m 3 /s 0.08 0.12 0.19 0.25 0.34 0.46CO 2 content in the flue gas % 15 15 15 15 15 15Flue outlet 7 mm 200 250 250 300 350 350Required draught Pa 0 0 0 0 0 0Efficiency– At full load % 90 90 90 90 90 90– At partial load % 92 92 92 92 92 92*5 Values for calculating the size of the flue system to DIN EN 13384, based on 12.0 % CO 2*6 Actual flue gas temperature as average gross value as per EN 304 at 20 °C combustion air temperature*7 Flue gas temperature: Increase possible by removing the displacer rods (Q N + 30 °C; Q min + 10 °C)5822 516 GB10 PYROT

PYROT rotation combustion (cont.)Dimensions42.74 n mm41.51 m mm8.22 a mm 38.51 b mm23.539.04 mm mmlkKRKVc24.11 f5.96 mm e mm44.84 mm2.67 mmgd7.01 mm2r23.03 mm77.57 h mm11.60 q. mmp19.57 mmo12.05 mm5822 516 GBKR Boiler returnKV Boiler flowDimensionsRated output kW 100 150 220 300 400 540a mm 392 392 406 406 466 466b mm 1291 1541 1525 1875 1800 2030c mm 345 358 358 352 375 375d mm 1891 1908 2168 2182 2457 2527e mm 303 303 316 316 319 319f mm 1093 1093 1179 1179 1219 1219g mm DN 80 DN 80 DN 80 DN 125 DN 125 DN 125h mm 2870 3120 3424 3780 4004 4232k mm 320 370 370 440 480 548l mm 870 870 1150 1150 1390 1390m mm 1765 1765 2024 2024 2262 2262n mm 1825 1825 2084 2084 2422 2492o mm 700 700 700 700 700 742p mm 870 870 1150 1150 1390 1390q mm 673 673 673 673 673 750r mm 1050 1050 1330 1330 1570 1570PYROT 11

PYROT rotation combustion (cont.)A B C D E F GK24,52 mm2205,30 mmH26354,17 b mm6,68 mm 33070,02 mmaA Sensor well for TSB Boiler returnC Return temperature sensorD Safety heat exchangerE High limit safety cut-out (STB)F Boiler water temperature sensorG Boiler flowH Safety heat exchangerK Ash removal, combustion blockDimensionsRated output kW 100 150 220 300 400 540a mm 2785 3035 3059 3415 3457 3685b mm 2000 2250 2274 2630 2614 2842KRKVAFBCDEABCDPneumatic cleaningCleaning cover, flue gas collectorFlange for burner trolley; standard version: Cover with sightglassRecirculation gas line, line routing variableE Ignition unitF Rotary fanKV Boiler flowKR Boiler return5822 516 GB12 PYROT

PYROT rotation combustion (cont.)ABKC2H G F E DA Flue gas fanB Boiler door with rotary fanC Extinguishing water connectionD Supply screw conveyorE Drive, infeed grateF Ash doors of the grate ash container (2 pce)G Drive, ash removalH Maintenance cover, combustion blockK Ash removal, rising screw conveyor5822 516 GBPYROT 13

3Control unit3.1 Specification for ECOTRONICThe Ecotronic system control unit is a decentralised microprocessorsystem (CAN BUS). To control the boiler system, the Ecotronic comprisesa module (PCB) integrated into the control panel, and the programmingmodule. Controller modules can be added to the Ecotronic(modular structure). It is therefore possible to extend operation individuallyaccording to customer requirements.Structure and functionModular structureThe Ecotronic system control unit is a decentralised microprocessorsystem (CAN BUS). To control the boiler system, the Ecotronic comprisesa module (PCB) integrated into the boiler, and the programmingmodule. Three-sensor cylinder management is part of the standardEcotronic version. Controller modules can be added to the Ecotronic(modular structure). It is therefore possible to extend operation individuallyaccording to customer requirements.Programming moduleThe programming module is included in the standard delivery for theboiler and is used to operate the heating system. The backlit screenoffers an extensive text display. A data cable connects the programmingmodule with the control panel.KÖB Wärme aus HolzF1F9F2F10F3The programming moduleF4F5>F6F11 F12 F13 F14 F15 F16>Ecotronic 800Functions:■ Automatic ignition■ Output control circuit with modulating output operation (25-100 %)– Air-controlled by means of variable speed flue gas fan subject toflow temperature– Exact fuel supply via the supply screw conveyor from dosing containerwith separating barrier– Topping up of the dosing container with level monitoring– Limitation and distribution of the mass to be burned in the combustionchamber by means of level monitoring in the combustionchamber and movement of the infeed grate.■ Emission optimised control circuit: Optimisation of the air supplythrough motorised air dampers using Lambda probe measurementensures optimum combustion■ Keeping up the return temperature with the boiler mixer ensures along boiler service lifeF7+OK-F8■ Control unit for oil burner on the PYROT■ Safety functions for:– Excessive temperature– Burn-back– Opening of a charging cover– Forced heat transfer■ Potential-free output (fault message)Operation:Operation is carried out via a control panel with touch-sensitive keypadand plain text display. All operating data can be shown on the display.The set values of all important parameters can be entered easily witha keyboard. Fault messages are displayed in plain text and output inthe sequence of occurrence.Standard delivery:■ Microprocessor control unit (control panel with backlit plain text display),CE-tested, real time clock, battery backed, serial interface RS232 for PC connection■ Data cable from the programming module to the control panel; length10 m■ Control panel, surface powder-coated in RAL 7035 (grey) texture.Version, as per ÖVE/VDE directives, fully wired to terminal strips,feed 3 x 400 V 50 Hz; control voltage 230 V or 24 V;– Update-compatible software– Starttec for all charging drives (3 x 400 V) according to separateprice items– Motor overload relay for boiler pump– Outputs for stepper motors (air dampers)– Inverter (EMC operating class 3) for flue gas fan■ In the control panel door:– 4-pole main isolator– Documentation incl. fixed wiring diagram, terminal connection diagramwith cable designation, operating and maintenance instructions,installation instructions in plan pocket■ Sensors and switches installed at the supply screw conveyor:– Infrared light barrier, level monitoring, separating barrier, supplyscrew conveyor– Safety limit switch on inspection cover of supply screw conveyor– Contact sensor PT-100 at the supply screw conveyor■ Sensors and switches at the combustion block, the combustion systemand in the flue outlet (installation on site):– Infrared light barriers, level monitoring, fuel in combustion chamber– Zirconium dioxide probe with measured value transducer (Lambdaprobe)– Flue gas temperature sensor PT-100■ Sensors and switches installed at top of boiler:– Boiler water temperature sensor KTY in connector flow– Return temperature sensor KTY in connector return– High limit safety cut-out (STB)– Temperature sensor, rotary fan■ Sensor supplied– 1 sensor KTY with sensor well 1/2 " x 280 mm (B28.1)5822 516 GB14 PYROT

Control unit (cont.)3.2 Accessories for EcotronicModules and data cablesThe standard Ecotronic version can be customised with additionalcontroller modules or controllers and data cables. Additional heatsources, heat consumers or DHW cylinders can be incorporated intothe control system with/without solar heating circuit backup.Data cablesThe data cable connects the individual modules to the overall systemcontrol unit. Data cables can be connected together (max. 2 cables).The total length of all CAN BUS cables must not exceed 200 m.Controller moduleThe controller module is supplied in a plastic casing (length 325 mm,height 195 mm, depth 75 mm) incl. outside temperature sensor (QAC31).The control keys for the controller module are available at the programmingmodule and are enabled according to the number of controllers.Either 3 or 5-sensor cylinder management is available. 5-sensor cylindermanagement requires an additional controller module.NoteEvery time the system is extended, it is necessary to check whether adata cable is required. Each additional controller module requires acorresponding data cable.DesignationPart no.Data cable with connector 10.0 m standard 7387 587Data cable with connector 2.0 m 7387 858Data cable with connector 5.0 m 7388 000Data cable with connector 20.0 m 7388 025Data cable with connector 40.0 m 7387 588Data cable with connector 80.0 m 7387 972Data cable with Y-distributor 7387 9483Optional combinationsProgramming module withkey extension12 controller keys Max.4 controllersand7 sensors possibleAdditional controller modules for an additional charge1 controller module 2 controller modules 3 controller modulesMax.8 controllersand14 sensors possibleMax.12 controllersand21 sensors possibleOverview: Possible Ecotronic controllersController Part no. Keys Number of controllersNumber of sensorsController, additional heat sourcesHeat source, parallel 7387 908 1 2 1Controller, central heatingCentral heating (heating circuit with mixer) 7379 402 1 1 1Adjacent building 7387 865 1 2 2Long-distance line 7379 401 1 1 1Space heater group 7387 825 1 1 1Room controller QAA 35 *8 7379 405 — — 1Safety thermostat *9 7387 940 — — —DHW controllerDHW cylinder B1 (without flow control) 7387 853 1 1 1DHW cylinder B2 (with flow rate control) 7379 400 1 1 2DHW circulation 7387 849 1 1 —Controller, solarSolar DHW cylinder 7387 818 1 1 2Solar DHW and central heating 7387 786 1 2 2Controller, cylinder managementCylinder management 5 sensors 7387 852 1 1 45822 516 GB*8 Only in conjunction with controller for central heating or controller for adjacent building*9 For limiting the heating circuit flow temperaturePYROT 15

Control unit (cont.)Controller, central heatingPart no. 7379 402Weather-compensated heating control unit with digital time switch forsetback mode according to individual day and seven-day program,with pump control unit, frost protection function, eco mode and limitedflow temperature.Standard delivery:■ Button, central heating■ Controller output for pump and mixing valve■ Contact sensor QAD 213A Contact sensor QAD 21B PumpC Mixing valveController, adjacent buildingPart no. 7387 865The cable to the adjacent building is controlled with weather compensationvia the heating circuit control unit. The DHW cylinder is heatedwith the selected maximum flow temperature. For this, the heatingwater is diverted to the DHW cylinder via a valve. Via the time switch,the DHW cylinder is reheated in the downtimes (setback periods).Standard delivery:■ Button, adjacent building■ Controller output for pump, mixing valve and diverter valve■ Contact sensor QAD 21■ Sensor QAZ 21.5220 with sensor well ½" x 200 mmA Diverter valveB Adjacent buildingC Contact sensor QAD 21D PumpE Mixing valveF Sensor QAZRoom controller QAA 35Part no. 7379 405Addition to the controller for central heating and controller for adjacentbuilding. The room controller can be connected as a remote controland as a room temperature sensor (room temperature compensation).Standard delivery:■ Room controller QAA 355822 516 GB16 PYROT

Control unit (cont.)Safety thermostat RAK-TW.1000BPart no. 7387 940For safe limitation of the flow temperature of a heating circuit.Standard delivery:■ Safety thermostat RAK-TW.1000BA Safety thermostat RAK-TW.1000BController, long-distance line3Part no. 7379 401Via a long-distance line, a building is supplied with separate heat distribution.The long-distance line is controlled upstream according tothe demand of the heating circuits. The heating circuits of the separateheat distribution must be controlled via the Ecotronic.Standard delivery:■ Button, long-distance line■ Controller output for pump and control valve■ Contact sensor QAD 21NoteThe long-distance line controller module can only be used while Köbcontroller modules in the sub-distributor are also being used.A Sub-distributorB BypassC Contact sensor QAD 21D PumpE Control valve5822 516 GBPYROT 17

Control unit (cont.)Controller, space heater3A PumpB Mixing valveC Contact sensor QAD 21Controller, DHW cylinder B1Part no. 7387 825The space heaters are supplied with maximum flow temperature bythe boiler cylinder system.The switching of the fan is carried out by on-site switches or controllers.The flow rate of the heating water is controlled via the return temperatureand matched to the output of the space heater (flow control). Thisresults in optimum cylinder stratification with sustained high temperatureat the cylinder flow. The heating periods (individual day andseven-day program) can be adjusted via the integrated time switch.Standard delivery:■ Button, space heater group■ Controller output for pump and mixing valve■ Contact sensor QAD 21■ Restrictor, bypassPart no. 7387 853When its temperature drops, the DHW is reheated via the integral heatexchanger directly by the boiler or by the buffer cylinder. This isdependent on a corresponding difference in temperature (either differentialtemperature or fixed temperature control unit).The heating periods (individual day and seven-day program) can beindividually adjusted via the integral time switch.Standard delivery:■ Button, DHW cylinder■ Controller output for pump and two-way valve■ Sensor QAZ 21.5220 with sensor well ½" x 200 mmA PumpB Two-way valveC Sensor QAZ 21.52205822 516 GB18 PYROT

Control unit (cont.)Controller, DHW cylinder B2TPart no. 7379 400When its temperature drops, the DHW is reheated via the integral heatexchanger directly by the boiler or by the buffer cylinder. This isdependent on a corresponding difference in temperature (either differentialtemperature or fixed temperature control unit).The flow rate of the heating water is controlled via the return temperature(flow control). This results in optimum buffer cylinder stratificationwith sustained high temperature at the cylinder flow. The heating periods(individual day and seven-day program) can be adjusted via theintegrated time switch.Standard delivery:■ Button, DHW cylinder■ Controller output for pump and control valve■ Contact sensor QAD 21■ Sensor QAZ 21.5220 with sensor well ½" x 200 mmA PumpB Control valveC Sensor QAZ 21.5220D Contact sensor QAD 213Controller, DHW circulationPart no. 7387 849The circulation periods (individual day and seven-day program) canbe adjusted via the integral time switch.The start-up duration of the DHW circulation pump can be adjusted viatimed cycling.Standard delivery:■ Button, DHW circulation■ Controller output for pumpTA Pump5822 516 GBPYROT 19

Control unit (cont.)Controller, solar DHW cylinderPart no. 7387 818Use for single solar thermal system as a single circuit control unit forheating the DHW in the solar DHW cylinder.If the temperature of the DHW (in the lower section of the DHW cylinder)falls below the collector temperature, the DHW is heated by thesolar collector (adjustable differential temperature: 2 - 20 °C).TNoteThe controller for the solar DHW cylinder can only be used in conjunctionwith a controller for a DHW cylinder (B1 or B2).WWKWRun-on time of the solar circuit pump adjustable from 0 to 120 s (subjectto line length).Maximum DHW temperature adjustable from 20 to 90 °C.Safety: the solar circuit pump switches off at 140 °C collector temperature;restarts at 120 °C.3VLTHVHRStandard delivery:■ Button, solar■ Collector temperature sensor PT-1000■ Cylinder temperature sensor QAZ 21.5220■ Controller output for the solar circuit pumpRLTKWHR Heating returnHV Heating flowKW Cold waterRL Return (solar)VL Flow (solar)WW DHWA Solar collectorB Collector temperature sensorC Solar station with solar circuit pumpD Thermostatic water mixerE Cylinder temperature sensor QAZ 21.5220Controller, solar/DHW and central heatingPart no. 7387 786Use for a larger solar thermal system for heating the DHW in the solarDHW cylinder and for heat supply to the heating cylinder as a threecircuitcontrol unit.The first circuit is used to heat the DHW, the second heats the heatingcylinder back/bottom and the third heats the heating cylinder front/top.The heating cylinder is heated with an external plate heat exchanger.Changing over from the DHW cylinder to the heating cylinder starts thesecondary pump. This then operates with the solar circuit pump. Foroptimum functioning, the flow rate in the secondary circuit must bematched to the primary circuit (e.g. with flow meter in the primary andsecondary circuits).Differential temperature, collector/DHW 2-20 °C.The following differential temperatures are freely adjustable:differential temperature, collector/cylinder back/bottom 2-20 °C.NoteController, solar/DHW and central heating can only be used in conjunctionwith a controller for a DHW cylinder (B1 or B2).Run-on time of the solar circuit pump adjustable from 0-120 s (subjectto line length).Shutdown safety:■ At 140 °C collector temperature■ At 95 °C cylinder temperatureOptimised DHW priority (either absolute or no DHW priority).Cylinder heating with stratification in accordance with the cylinder temperaturesvia a charging valve for the cylinder front/back.Standard delivery:■ Button, solar■ Collector temperature sensor PT-1000■ Cylinder temperature sensor QAZ 21.5220■ Controller output for the solar circuit pump■ Controller output, charging valve, DHW cylinder■ Controller output for secondary pump■ Controller output, charging valve, cylinder back/cylinder front5822 516 GB20 PYROT

FlowReturnControl unit (cont.)--B6X.1--A22BCAN2434-----M6X.1--B3--Y6X.1----M6X.1----B6X.2--WW3C--Y20----M20--2 2 434--B28.1----B6X.1----B28.2----B6X.2--H--B28.3--DKWGE--Y6X.1--3--M6X.2-----F2422--Y6X.2--KW Cold waterWW DHWA Solar collectorB Solar station with solar circuit pumpC Thermostatic water mixerDFGHPlate heat exchangerSecondary pumpCharging valve, buffer cylinder front/backBoiler5822 516 GBPYROT 21

Control unit (cont.)3.3 Accessories for ECOTRONIC output managementCylinder management 3 sensorsPart no. 7387 828Modulating output operation of the PYROT rotation combustion systemis optimised with the use of a buffer cylinder. Short term heatdemand peaks are also covered. The temperature sensors record theheating of the buffer cylinder. The combustion output is matched to thecharging level of the buffer cylinder.Standard delivery:■ 2 additional sensors KTY with sensor well 1/2" x 280 mm3Cylinder management 5 sensorsPart no. 7387 852Modulating output operation of the PYROT rotation combustion systemis optimised with the use of a buffer cylinder. Short term heatdemand peaks are also covered. The temperature sensors record theheating of the buffer cylinder. The specification of the charging level ofthe buffer cylinder is weather-compensated and carried out via theoutside temperature sensor. The combustion output is matched to thecharging level of the cylinder.Standard delivery:■ 4 additional sensors KTY with sensor well 1/2" x 280 mmNotePart no. 7379 403 controller module andPart no. 7387 587 data cable required.External requirement ON/OFFPart no. 7387 855Input for automatic switching on/off of the system via external floatingN/O contact.Operating message potential-freePart no. 7387 934If the PYROT boiler is operating on higher control technology, theoperating condition "Load operation" (potential-free output) is issued.Standard delivery:■ Potential-free output (operating message)Output signals 0-10 VPart no. 7387 800Issuing of boiler output as voltage signal and a connection to receivea maximum limit of the boiler output included in standard delivery.Functions:■ Issue of the output signals■ Receipt and processing of an external output restriction– 0 - 0.5 V... OFF– 0.6 – 3 V... Standby– 3.1 – 10 V... 30 % to 100 % output rangeNoteNote: The installation of "Output signals 0 – 10 V" downstream ofQM wood heating plants is possible irrespective of additional controlmodules used.5822 516 GB22 PYROT

Control unit (cont.)3.4 Accessories for ECOTRONIC remote transferFault message device, analogue with batteryPart no. 7387 994Four different text messages are possible, as the fault messagemodem has four independent digital inputs.To be carried out on customer side:■ Electrical connection of the phone line to the modem■ Configuration in accordance with the documentationStandard delivery:■ Analogue modem in control panel■ Battery station (also works in event of a power failure)Export of operating dataPart no. 7388 038Issue of relevant operating data and fault messages of the boiler systemas ASCII dataset via serial interface to higher control technologyon the customer side. If permitted by the control technology, the highercontrol technology can change all adjustable parameters.Standard delivery:■ Interface at the control panel■ Software module■ MOD-BUS protocolNoteAdditional fault message device, analogue with battery station, partno. 7387 994, possibleAdditional visualisation, wired or wireless, part no. 7388 003, notpossible3Visualisation Pyrot - internalPart no. 7387 839With a data cable (max. 30 m), all data can be fed via the serial interfaceRS 232 from the programming module to the PC. The currentoperating data for the boiler system is displayed visually on a functionscreen. All options for inputting values and functions and reading outthe operating conditions (exception: "Start boiler)" are shown. All operatingdata is archived cyclically and can be evaluated graphically in anextremely simple way.NoteThe PC and data cable are not included in the price.Standard delivery:■ CD with visualisation software and installation instructionsNoteRequirements for on-site PC:Operating system: Windows 98 / 2000 / XPAt least 50 MB free hard disk memoryAt least 128 MB RAM1 free serial interface per boilerVisualisation, additional functionsPart no. 7387 821Extension of visualisation [ECO VII] with the functions of additionallyenabled buttons (from F4). Additional functions include each heatingcontroller (heat source, heat consumer, solar) and automatic charging.Every button function is shown on a separate function screen with alloptions for entering values, reading out the operating conditions andarchiving. Price per piece for additionally enabled button on programmingmodule.Standard delivery:■ Extension of the visualisation software CDData cable to visualisation - internalPart no. 7379 404Data cable comprising:■ D-SUB connector for connection between programming module anddata cable, soldered■ 30 m data cable 3-pole (cut to length as required on site)■ D-SUB connector with threaded fittings, 9-pole for connection to thePC5822 516 GBPYROT 23

Control unit (cont.)Visualisation, externally via modem (connected with cable)Part no. 7387 792Package for the transmission of relevant data to an EDP workstation(internal and/or external) for the visualisation, remote maintenanceand operating data archiving of the PYROT boiler system. Hardwareand software are integrated into the Ecotronic control unit. All adjustableparameters can be changed from the EDP workstation.Standard delivery:■ Industrial PC with interfaces for screen, keyboard and PC mouse forEDP workstation close to boiler room■ Analogue modem in control panel■ Windows operating system, remote maintenance software pcAnywhereand visualisation/archiving software installed and tested onthe industrial PC.Images on the screen:■ Cross-section image of boiler, 3D with display fields■ Installation scheme for heat source with display fields■ Table of parameters (with change option)To be carried out on customer side:■ EDP workstation for remote maintenance together with modem,installation of pcAnywhere and modem is to be set up independentlyby the customerNoteAdditional fault message device, analogue with battery station, part no.7387 994, possibleAdditional export of operating data, part no. 7388 038, not possible35822 516 GB24 PYROT

Control unit (cont.)3.5 Mastercontrol for two-boiler systemsThe Mastercontrol optimises the entire heat generation of two biomassboilers (PYROT dual system) incl. control of an oil, gas or electric boileras a redundancy and/or as a peak load boiler.Information on the MastercontrolFunction:■ Heat management:Optimum division of the required output between the two biomassboilers with the main load on the lead boiler and the remaining loadon the lag boiler via a default output value. The default output iscalculated in accordance with QM wood heating stations in line withthe required set temperature in the common low loss header. Automaticswitchover of the two boilers between the lead boiler and thelag boiler is possible. This ensures an even boiler load over a longoperating time (e.g. weekly changeover).■ Charging:If fuel for the two biomass boilers is taken from a common fuel store,charging is controlled up to fuel distribution by the Mastercontrol.■ Operating data archiving:Relevant operating data of the past 31 days is stored in a ring bufferand can easily be displayed in graph form on the Mastercontroltouch-screen.Operation:Operation is carried out via a 10“ touch-screen integrated in the controlpanel.3Standard delivery■ Control panel, loose,surface powder-coated in RAL 7035 (grey) texture. Version as perÖVE/VDE directives fully wired to terminal strips, feed 3 x 400 V 50Hz; control voltage 230 V or 24 V■ Freely programmable control unit, CE-tested, program and real timeclock are battery backed■ Contactor/motor overload relay combinations for all common chargingdrives (3 x 400 V) according to separate price items■ Ethernet interface (network connection) on touch panel■ Potential-free output (fault message)■ 10“ touch-screen■ 4-pole main isolatorVisualisation with touch-screen■ Operating data archive■ Display and archiving of the relevant■ Operating data of both wood boiler systems and the Mastercontrol■ Easy operation of the wood boiler systems at the touch-screen of theMastercontrol■ Documentation incl. fixed wiring diagram■ Terminal connection diagram with cable designation in plan pocket■ Heater management 5 sensors (QM)■ 5 sensors PT-1000 with sensor well 1/2" x 280 mm■ 1 weather sensor PT-1000■ Default output value for both biomass boilers for processing in thesubordinate boiler control units via CAN BUSNoteRemote maintenance with PC or network, water-side and electricalinstallation on customer side.■ Installation scheme for heat source with display fields■ Table of parameters (with parameter setting options)■ Fault history5822 516 GBPYROT 25

Control unit (cont.)Schematic diagramATMBMMECOTRONICECOTRONIC12PYROT 1 PYROT 2TB28.1TB28.2MASTER-CONTROLCTB28.33TB28.4TB28.5DECOTRONICECOTRONIC112E2FGMASTER-CONTROLSchematic diagram of a two-boiler system with MastercontrolA Additional heat sourceB Flow consumersC Buffer cylinder as low loss headerD Return consumersE Exclusively charging boiler 1 in control unit boiler 1F Exclusively charging boiler 2 in control unit boiler 2G Common charging, control unit modules5822 516 GB26 PYROT

Control unit (cont.)3.6 Accessories for MastercontrolHeat meter signalPart no. 7387 975NoteOnly for Mastercontrol.With this analogue input (0-10 V signal), the external heat meter canbe read into the Mastercontrol. The current values can be displayedon the screen. The heat meter data is archived in the visualisation.Requirement, additional heat source KP0Part no. 7387 923Function:The additional heat source supplies, individually or jointly with theboiler, heat to the buffer cylinder. This is designed as a low loss header.Taking into consideration the inertia of the boiler, the boilers are controlledso that the additional heat source covers the peak load and thewood boiler covers the base load. In the operating phase of the additionalheat source, the boiler pump is operating and the motorisedshut-off device is open.3Standard delivery:■ Sub-menu on touch-screen■ Contactor and motor overload relay, boiler circuit pump, additionalheat source■ Control of motor, shut-off device■ Floating contact for the control of the burner■ Sensor PT-1000 incl. sensor well ½” x 280 mm loose (installation inlow loss header-system sensor)NoteThe electrical output data of the on-site boiler pump (kW, ampere, volt)must be given.Requirement, additional heat source KP1Part no. 7387 908Function:The additional heat source supplies, individually or jointly with theboiler, heat to the buffer cylinder. This is designed as a low loss header.Taking into consideration the inertia of the boiler, control is carried outso that the additional heat source covers the peak load and the boilercovers the base load. In the operating phase of the additional heatsource, the boiler pump is operating and the control unit of the boilermixer is enabled.Standard delivery:■ Sub-menu on touch-screen■ Contactor and motor overload relay, boiler circuit pump, additionalheat source■ Control of motor, shut-off device■ Floating contact for the control of the burner■ Sensor PT-1000 incl. sensor well ½” x 280 mm loose (installation,return of additional heat source)■ Sensor PT-1000 incl. sensor well ½” x 280 mm loose (installation inlow loss header-system sensor)Pt10005822 516 GBNoteThe electrical output data of the on-site boiler pump (kW, ampere, volt)must be given.PYROT 27

Control unit (cont.)Fault message device, analogue with batteryPart no. 7387 840Transmits the boiler system fault messages as a phone message. Thefault message must be acknowledged. Four different text messagesare possible, as the fault modem has four independent digital inputs.To be carried out on customer side:■ Electrical connection of the phone line to the modem■ Configuration in accordance with the documentationStandard delivery:■ Analogue modem in control panel■ Battery station (also works in event of a power failure)Export of operating dataPart no. 7387 890Issue of relevant operating data and fault messages of the boiler systemvia MOD-BUS as ASCII dataset via a serial interface to highercontrol technology on the customer side. If the option is available, thehigher control technology can change all adjustable parameters.Note■ Additional fault message device, analogue with battery station possible(part no. 7387 840)■ Additional visualisation, wired (part no. 7387 997) or wireless (partno. 7387 874) possible3Standard delivery:■ Interface at the control panel■ Software module■ MOD-BUS protocol5822 516 GB28 PYROT

Heating water buffer cylinder4.1 Specification, buffer cylinderBuffer cylinder HPMBuffer cylinder for integration in a wood combustion system with amaximum boiler output of up to 150 kW.Version:■ Steel S 235 JRG2, untreated inside, anti-rust coating outside■ Operating pressure: max. 3.0 bar; test pressure: 4.5 bar■ Connections: 8 female connections R 1½, 4 female connectionsR ½, 1 sensor pipe 14 x 1.5 mm, 1 female connection top R 1¼Flexible foam insulation to HPMThe insulation is made from 100 mm thick flexible PUR foam elementswith polystyrene casing.Fire safety category B3.NoteDelivery is ex-stock.Alternative cylinder sizes and insulation types on request.03hg0102010102014fe010201d1o014010201bacnklm025822 516 GBPart no. buffer cylinder HPM 7424130 7424131 7424132 7424133 7424134 7424135Part no. flexible foam insulation to7424136 7424137 7424138 7424139 7424140 7424141buffer cylinder HPMContents l 1000 1250 1500 2000 2500 3000Weight kg 170 176 185 211 260 300DimensionsHeight when tilted mm 2080 2070 2200 2410 2375 2780a mm 310 310 380 320 535 380b mm 745 745 825 900 975 1020c mm 1250 1250 1350 1490 1415 1680d mm 1710 1710 1760 2020 1855 2330e mm 1993 1948 2098 2308 2217 2655f Total height mm 2043 1998 2148 2358 2267 2705g Diameter without mm 790 950 1000 1100 1250 1250insulationh Diameter with insulationmm 990 1150 1200 1300 1450 1450Connectionsk 50° 50° 50° 50° 50° 50°l 50° 50° 50° 50° 50° 50°m 28.2° 31.9° 32.8° 34.3° 36.2° 36.3°n 70° 70° 70° 70° 70° 70°o Length of female connectionsmm 100 100 100 100 100 10001 Female connections, R 1½ 1½ 1½ 1½ 1½ 1½flow/return02 Female connections,sensorR ½ ½ ½ ½ ½ ½PYROT 29

lHeating water buffer cylinder (cont.)Part no. buffer cylinder HPM 7424130 7424131 7424132 7424133 7424134 7424135Part no. flexible foam insulation to7424136 7424137 7424138 7424139 7424140 7424141buffer cylinder HPM03 Female connection, R 1¼ 1¼ 1¼ 1¼ 1¼ 1¼top04 Sensor pipe Ø14xL1400 Ø14xL1400 Ø14xL1400 Ø14xL1700 Ø14xL1250 Ø14xL1700Buffer cylinder WDW 2000 lPart no. 7424 538Buffer cylinder for integration in a wood combustion system with amaximum boiler output of up to 540 kW.Version:■ Steel S 235 JRG2, untreated inside, anti-rust coating outside■ Operating pressure: max. 3.0 bar; test pressure: 4.5 bar■ Connections: 4 flanges DN 80 / PN 6, 3 female connections R ½, 1female connection R 1½, 1 female connection R ¾Rigid foam insulation to WDW 2000 lPart no. 7424 540The insulation is made from approx. 90 mm thick rigid foam shells(single part or multi part polystyrene) incl. cover.Fire safety category B2.NoteDelivery is ex-stock.Alternative cylinder sizes and insulation types on request.401020301amgfe0402hkdcb0201 01noPart no. buffer cylinder WDW 2000 l 7424 538Part no. rigid foam to buffer cylinder WDW 2000 l 7424 540Contents l 2000Weight kg 220DimensionsHeight when tilted mm 2170a mm 280b mm 750c mm 1165d mm 1265e mm 1480f mm 1580g mm 1680h mm 2010k Total height mm 2025l Diameter without insulation mm 1200m Diameter with insulation mm 1400Connectionso Length of female connections mm 10001 Flow/return flange DN80/PN602 Female sensor connections R ½03 Female sensor connection R ¾04 Reserve R 1 ½30 PYROT5822 516 GB

Heating water buffer cylinder (cont.)Buffer cylinder WDW 2900 lPart no. 7439 106Buffer cylinder for integration in a wood combustion system with amaximum boiler output of up to 540 kW.Version:■ Steel S 235 JRG2, untreated inside, anti-rust coating outside■ Operating pressure: max. 3.0 bar; test pressure: 4.5 bar■ Connections: 4 flanges DN 80 / PN 6, 5 female connections R ½, 1female connection R 1½, 1 female connection R ¾, 1 ventilationfacilityRigid foam insulation to WDW 2900 lPart no. 7439 107The insulation is made from approx. 90 mm thick rigid foam shells(single part or multi part polystyrene) incl. cover. Fire safety categoryB2.NoteDelivery is ex-stock.Alternative cylinder sizes and insulation types on request.2012m o812184rsk1nphgfetqadbc118 84l m5822 516 GBPart no. buffer cylinder WDW 2900 l 7439 106Part no. rigid foam to buffer cylinder WDW 2900 l 7439 107Contents l 2900Weight kg 295DimensionsHeight when tilted mm 2890a mm 265b mm 745c mm 1155d mm 1560e mm 1785f mm 1920g mm 2130h mm 2230k mm 2465l mm 50m mm 280n mm 2200o mm 20p mm 2830q Length of female connections mm 150r mm 1300s mm 1200t ° 90Connections1 Temperature sensor R ½2 Female sensor connections R ¾4 E heater R 1 ½8 Flow/return flange DN80/PN612 Ventilation R 120 Insulation mm 90PYROT 31

Installation accessories5.1 Boiler safety equipmentThermally activated safety valve 100 °CPart no. 7387 405Standard version for response temperature approx. 100 °C, connectionR . ¾Standard delivery:■ Thermally activated safety valve incl. sensor wellNoteWe recommend the thermally activated safety valve even if there isno need to use it in accordance with the local safety regulations.Thermally activated extinguishing valve ½”, 50-90 °CPart no. 7387 521Thermally opening extinguishing valve with adjustable opening temperaturefor on-site connection to a pressurised water line or an extinguishingwater container.Standard delivery:■ Extinguishing valve Danfoss AVTA, adjustable 50-90 °C with dirt trapSupply screw conveyor two-levelPart no. 7387 831Version with two-level supply screw conveyor. This enables operationmatched to the fuel used. It is optimised for shavings/woodchips (highlevel) on the one side and for pellets (low level) on the other.Standard delivery:■ Geared motor, supply screw conveyor, pole-changing 750/300 rpm■ Starttec for geared motor, pole-changing■ Software module in the control unitInsulation, flue gas recirculation lineHigh temperature-resistant insulation 35 mm thick made from mineralwool with aluminium lamination and side adhesive strips for straightelements of the flue gas recirculation line. Aluminium foil adhesivestrips for the faces are also supplied.DesignationInsulation, flue gas recirculation line, per m, DN80Insulation, flue gas recirculation line, per m, DN125Part no.7387 4217388 02355822 516 GB32 PYROT

Installation accessories (cont.)5.2 Accessories, heat distributionMotor three-way valve for Pyrot 100 kWDesignation Rated output Part no.Motor three-way valve, VXG 48.40/SQS 35.0 (ZV-3-40) 100 kW 7388 204Precise control characteristics and an airtight seal without leaks.TypeDN Kvs ServomotorIncl. complete fittingRated output[mm] [m 3 /h]230 VZV-3-40 40 20 SQS 35.00 R 1½ – G 2¼ 100 kWNoteNo individual issue: delivery only as part of an overall system.Motor three-way valve for Pyrot 150-540 kWDesignation Rated output Part no.Motor three-way valve, VBF 21.50/SQL 33 (ZH-3-50) 150 kW and 220 kW 7388 100Motor three-way valve, VBF 21.65/SQL 33 (ZH-3-65) 300 kW 7388 160Motor three-way valve, VBF 21.80/SQL 33 (ZH-3-80) 400 kW and 540 kW 7388 260Rated output Type DN [mm] Kvs [m 3 /h] Servomotor 230Incl. complete fittingV150 kW and 220 kW ZH-3-50 50 40 SQK 33 Mating flanges, gaskets300 kW ZH-3-65 65 63 SQL 33 Mating flanges, gaskets400 kW and 540 kW ZH-3-80 80 100 SQL 33 Mating flanges, gasketsNoteNo individual issue: delivery only as part of an overall system.PumpsRated output Designation Part no. DNmm100 kW and 150 kW Wilo TOP-S 30/7 DM(ZPS-328-4)220 kW Wilo TOP-S 40/7 DM(ZPS-406-4)300 kW and 400 kW Wilo TOP-S 50/7 DM(ZPS-506-4)540 kW Wilo TOP-S 65/10 DM(ZPS-656-4)VoltageVOutputWOutputm 3 /h /mWCIncl. completefittingVariablespeed7388 134 30 400 65-200 7.5/7.0 R 1¼ – G 2 —7388 108 40 400 130-370 16.5/7.0 Mating flanges,gaskets7338 271 50 400 245-625 28.0/7.0 Mating flanges,gaskets7388 221 65 400 400-960 42.0/9.0 Mating flanges,gaskets———5NoteWe reserve the right to select the pump manufacturers and types.Delivery only as part of an overall system or as a spare part.5822 516 GBPYROT 33

Installation accessories (cont.)5.3 Accessories, flue systemFlue gas dust extractorThe flue gas dust extractor minimises dust emissions and is designedas a multi cyclone with axial function. The dust extractor is fully insulatedand has three covers for cleaning.The raw gas space is cleaned via the side cleaning cover. The cleangas space is cleaned via the upper or back cleaning cover (unused fanconnection).The ash box has a carriage and is connected to the dust extractor withquick-action fasteners. It can easily be pulled out for emptying. The fancan be installed either on the side or the top.NoteThe flue gas dust extractor is required for fuels with an increased percentageof fines (> 4 %).Rated output kW 100 150 220 300 400 540Part number 7423 662 7423 663 7423 664 7423 665Standard delivery:■ 1 flue gas dust extractor■ 1 ash container hopper volume 90 litresAsh container 90 l, reservePart no. 7388 045NoteAdditional ash containers must be ordered separately.55822 516 GB34 PYROT

Installation accessories (cont.)47,92 b mma29,93 mm14,70 23,34 mm 10,05 mm 2,19 mm< 200d e fABCDc g34,05 mm16,68 h mm7,69 mm28,23 mm82031,22 l 4,07 mm mm < 2008,86 14,12 n mm 8,26 820 mm m mm10,57 r mm6,02 mmkpq14,12 820 mm21,70 r mm90 l25,44 750 mm29,45 mm28,23 mm820d28,23 mm8205Positioning in 4x 90° possible (removal, ash container)A Flue gas fan (with variable rotation)■ Either top or side■ Unused connection as cleaning cover, clean gas spaceB Cleaning cover (raw gas space)C Dust extractor (axial cyclone)D Ash stationk Recirculation gas to boilerq Flue gas to chimney5822 516 GBDimensionsRated output kW 100 and 150 220 and 300 400 540Part no. 7423 662 7423 663 7423 664 7423 665Dimensionsa mm 1521 1628 1671 1741b mm 2285 2552 2702 2776c mm 1518 1775 1875 1949d mm 846 846 846 920e mm 899 1156 1256 1256f mm 540 550 600 600g mm 430 424 447 447h mm 545 530 977 977l mm 1640 1440 1790 1790m mm 414 414 480 480n mm 280 370 370 370o mm 614 614 620 620r mm 780 780 1260 1260WeightWeight with flue gas fan kg 295 315 350 350Weight without flue gas fan kg 258 270 310 288PYROT 35

Installation accessories (cont.)Metal mesh filterThe metal mesh filter removes dust and fine dust from the flue gas. Itis characterised by a particularly high degree of separation. Thisensures a fine dust content of less than 20 mg/Nm³ in the clean gas.The flue gas dust extractor (cyclone separator) is not required in thiscase.The metal mesh filter comprises two block-shaped units joinedtogether. The compact design enables it to also be used in low levelboiler rooms. The filter cartridges are robust and resistant to a showerof sparks.Function:The filter is operated with underpressure. With the cylindrical filter cartridges,the flow is from outside in. The filter cartridges are protectedagainst condensation by means of a heating system and are thereforeprotected against corrosion. In the case of boiler demand, the filtercartridges are preheated. If the set filter temperature is reached, boilerstart-up operation is enabled. If the temperature falls below the set filtertemperature, the filter heating system starts in heating mode. The filtersare cleaned automatically in the countercurrent. This means thatthe dust layer on the mesh is regularly discarded into the ash box.Filter operation is controlled via the boiler control unit. Operation iscarried out via the control unit programming module.Standard delivery:■ Two-part, insulated filter casing with:– Hinged raw gas doors, lockable by means of a quick-action fastenerand lock– Maintenance cover for clean gas space– Filter cartridges– Ash box■ Electric heater■ Pneumatic cleaning■ Flue gas fan for boiler and filter■ Control panel fully wired.On-site tasks:Provision of a compressor or a connection to a compressed air linesystem (pressure level 4–6 bar) and a power supply 3 x 400 V, 25 A.5> 200ABC> 150 t19,28 mmac4,11 mm dbPODEefFklghLKsmnLMGHMNrHKDOF> 200opqA Clean gas collectorB Raw gas distributor (connection possible on both sides)C Recirculation gas connectionD Clean gas to chimneyE Raw gas from boiler (connection possible on both sides)F Flue gas fan (with variable rotation)G Control panel EcotronicH Power supply 3 x 400 V, 25 AK Pressure bars for pneumatic cleaningL Control panel doorM Compressed air connectionN Raw gas door5822 516 GB36 PYROT

Installation accessories (cont.)DimensionsRated output kW 220 300 400Dimensionsa mm 1413 1413 1413b mm 1833 1833 1833c mm 460 460 460d mm 300 300 350e mm 2097 2097 2097f mm 1720 1720 1720g mm 2230 2230 2230h mm 2820 2820 2827k mm 1270 1270 1400l mm 1670 1670 1717m mm 1730 1730 1770n mm 2255 2255 2400o mm 840 840 840p mm 900 900 900q. mm 1192 1192 1040r mm 1069 1069 1069s mm 800 800 800t mm 2200 2200 2200WeightTransport weight kg 470+470 470+490 490+490Total weight kg 940 960 980NoteFurther dimensions on request.SpecificationRated output kW 100 150 220 300 400 540Part no. 7424 949 7423 697 7423 698 7423 699 7424 950Suitable for continuous outputs of kW 24-80 41-135 60-200 80-270 100-360 144-480Dust content in clean gas mg/Nm³

Installation accessories (cont.)■ Valves fully wired on terminal strip■ Software module in the control unitTo be carried out on customer side:■ Provision of a socket 400 V / 16 A■ Connector for compressor 400 V / 16 ASpecificationRated output kW 100 150 220 300 400 540Part no.: 7423 666 7423 667 7423 668 7423 669 7423 670 7423 671Number of zones/valves pce 3 4 4 4 5 6Size of valves G 1 1 1 1 1 1Max. air consumption under full load l/h 1300 1300 2500 2500 3300 4500Price reduction net compressed air on sitePart no. 7388 288This eliminates the need for the compressor listed in "Cleaning pneumatic".The compressor provided on the customer side must supply atleast the specific quantity and quality of the air and have an adjustablepressure regulator and protection against hose break (e.g. runtimelimiter).The compressor must also meet the following minimum requirements:■ Compressor (rotation compressor) for local applications– Supply output 160 l/min– Container 90 l– Pressure max.10 bar– Motor 1.5 kW– 1450 rpm– 3 x 400 V– Incl. pressure regulator and pressure switch– Sound level 68 dB(A)55822 516 GB38 PYROT

Installation accessories (cont.)5.4 Accessories, ash removalExternal containerComplete screw conveyor ash removal from the ash chamber of thecombustion block into an external, mobile and zinc-plated ash container(standard 240 litres). The light barrier control unit keeps the ashlevel via the screw conveyor constant. In this way, the ash can transferall its heat in the ash trough under the combustion system and onlycooled ash is fed into the container in normal operation.■ Connection station with mobile ash container■ Control of the screw conveyor drives■ Infrared light barrier for level monitoring of ash in combustion chamberStandard delivery:■ Boiler ash trough with ash level control and ash removal screw conveyormade from heat-resistant steelDriven via geared screw conveyor motor■ Ascending ash screw conveyor as a pipe screw conveyor with directtransfer from the ash removal screw conveyorDriven via geared screw conveyor motorABCD5Standard versions (A-D also possible reversed)Connection station with mobile ash container can also be installedrotated 90°. It is possible to select the direction in which the ash containeris pulled out.5822 516 GBPYROT 39

Installation accessories (cont.)24,56 1727 mm15,91 mm111810,42 4,72 mm mm742a1,98 mm 13914,61 742 mm3,21 mm16,99 438 b mm14,06 710mm6,12 mm450Ash removal in external container 240 lDimensionsRated output kW 100 150 220 300 400 540Volume of ash container l 240 240 240 240 240 240Part no.: 7387 918 7387 918 7387 918 7387 918 7387 918 7387 918a mm 249 249 319 319 301 301b mm 953 1023 1023 1193 1273 1408514,74 mm24,70 mm246015009,8310004,72 mmamm1,98 mm 13916,99 mm10,71 mm13,44 mm438 b100010005,89510mmAsh removal in external container 800l6,12 mmDimensionsRated output kW 100 150 220 300 400 540Volume of ash container l 800 800 800 800 800 800Part no.: 7387 950 7387 950 7387 950 7387 950 7387 950 7387 950a mm 249 249 319 319 301 301b mm 953 1023 1023 1193 1273 14085822 516 GB40 PYROT

Installation accessories (cont.)Ash removal into the base containerComplete screw conveyor ash removal from the combustion block ashchamber into the base container located under the boiler with maximumcapacity. The light barrier control unit keeps the ash level via thescrew conveyor constant. In this way, the ash can transfer all its heatin the ash trough under the combustion system and only cooled ash isfed into the container in normal operation. The large base containerensures maximum maintenance free intervals.Standard delivery:■ Boiler ash trough with ash level control and ash removal screw conveyormade from heat-resistant steel; driven via a geared screwconveyor motor■ Base container with a maximum capacity and two maintenancedoors for the removal of ash by means of a vacuum cleaner or stokingdevice■ Control of ash removal with light barrier8,72 17,54 mm14,23 13,70 mm mm426 a b cAA Boiler ash trough doorDimensionsRated output kW 100 150 220 300 400 540Part no.: 7387 911 7388 031 7387 789 7387 835 7388 029 7388 021Dimensionsa mm 640 740 740 880 960 1096b mm 448 450 513 787 456 551c mm 593 593 680 680 800 800Volume of base container l 220 240 360 380 600 700Additional weight to the boiler kg 300 320 340 360 380 4006Design information6.1 System design5822 516 GBSelection of rated outputSelect the wood boiler according to the required heat load. The Pyrotshould be planned as a base load boiler and always operated in conjunctionwith a buffer cylinder (management). The correct systemdesign point therefore does not depend on the nominal load specification(i.e. the building heat load) but rather on the required durationof use (length of the heating period, heat demand).Flow temperaturesTo minimise distribution losses, we recommend that you size the heatdistribution system and the DHW heating to a max. flow temperatureof 70 ºC.NoteIn places more than 1800 metres above sea level, the project enquirymust include information about the exact geographical location (altitudeand address of the location).For wood boilers supplied with a boiler control unit, the max. boilerwater temperature is limited to 85 ºC. The flow temperature may beincreased by adjusting the control thermostat.PYROT 41

Design information (cont.)Safety temperaturesThe boilers comply with EN 303 and DIN 4702, and are all CE-designatedand can be used in sealed heating systems as per EN 12828.■ Permissible flow temperatures (= safety temperatures):up to 110 ºCTo EN 12953: up to 120 ºC■ Max. possible flow temperature:approx. 15 K below the safety temperature■ High limit safety cut-out of the boiler control unit:Delivered condition 110 ºCAdjustable to 100 ºC6.2 DeliveryKÖB delivers to the site. The system is unloaded on site.A special crane is required on site for unloading.The personnel carrying out transportation must be aware of accidenthazards and take appropriate measures to prevent them. The boilershould only be lifted when it is completely empty (water, fuel, ash).Pyrot with a rated output of 100 – 300 kW: lift by lifting eye.Pyrot with a rated output of 400 – 540 kW: lift by flow and return connectorswith tie-bar.6.3 HandlingA number of lifting eyes will be provided on each boiler and flue gas/water heat exchanger where lifting gear may be attached.To lift the boiler by the flow and return connectors, a tie-bar isrequired.Our experts can undertake the handling and installation on preparedfoundations upon request (chargeable option).The boilers may be placed onto concrete without special foundations.Observe the installed boiler height.Minimum clearances to walls for installation and maintenance workmust be observed.Anti-vibration boiler supports may be used if anti-vibration measuresare required.90,00°90°45,31°45°F1/2 F1/244,15°45°A6A Lifting eyes(for Pyrot 400-540 kW, a tie-bar is required.)6.4 SitingRequirements for boiler roomA separate dry boiler room must be provided for the system. No combustiblematerials should be stored in the boiler room. The wood boilermay only be installed on a fire and temperature-resistant floor. Notemperature-sensitive pipes or lines should be routed under the floorunder the boiler. The load bearing capacity of the boiler room floorshould be sized to the system weight plus the water fill volume and thefuel. Floor load bearing capacity in the area of the boiler supportingsurface: 2000 kg/m².The minimum clearances from walls and the ceiling, which are requiredfor cleaning and maintenance, must be observed. These can be foundon the measurement sheet. An adequate fresh air supply directly fromoutside into the boiler room must be ensured. If the boiler room is narrowand/or internal, forced ventilation is required. The temperature inthe boiler room when operating the system must not exceed +40 °C(measurement point: boiler environment approx. 1 m away fromboiler). The temperature in the boiler room when operating the systemmust not fall below +10 °C (measurement point: inner side of externalwall).5822 516 GB42 PYROT

Design information (cont.)■ Avoid air contamination through halogenated hydrocarbons (e.g. asin sprays, paints, solvents and cleaning agents)■ Avoid very dusty conditions■ Avoid high levels of humidity■ Prevent frost damage and ensure good ventilationIn rooms where air contamination through halogenated hydrocarbonscan occur, install the boilers and flue gas/water heat exchangersonly if adequate measures can be taken to provide a supply of uncontaminatedcombustion air.If these instructions are not observed, any consequential lossesdirectly related to any of these causes are excluded from our warranty.If in doubt, please contact us.250250ayb250fec250250gxdxSupply sideyFloor in heat-resistant versionSurface medium grey Boiler supporting surfaceFoundation propertiesTrade name Pyrot rotation combustionRated output kW 100 150 220 300 400 540Part no.: 7423 656 7423 657 7423 658 7423 659 7423 660 7423 661Dimensionsa mm 1570 1570 2050 2050 2460 2460b mm 870 870 1150 1150 1390 1390c mm 620 620 680 680 800 800d mm 2803 2850 3130 3613 3738 4103e mm 423 520 520 723 448 543f mm 640 740 740 880 960 1095g mm 870 870 1150 1150 1390 13906Requirements of the Muster-Feuerungsverordnung [Germany]The installation room must meet the standards laid down by the "MusterFeuerungsverordnung" [Germany]. Observe the Building Regulationsand combustion equipment ordinances of the relevant country ofinstallation.5822 516 GBCombustion air supplyFor open flue combustion equipment with a total rated output in excessof 35 kW, the combustion air supply is deemed to have been verifiedif the combustion equipment is located in areas which provide an apertureor duct leading outdoors.At 35 kW rated output, the cross-section of the aperture must be atleast 150 cm 2 . For every kilowatt rated output in excess of 35 kW, theaperture must be 2 cm 2 larger than stated above.Pipes must be sized to provide equivalent flow rates. The requiredcross-section may be split over a maximum of 2 apertures or pipes.PYROT 43

Design information (cont.)cm²A = 150 cm² + 2 x (Σ²n – 35 kW)kWAΣ² n = total of all rated outputs in kWNever close or obstruct combustion air apertures and lines. Use specialsafety equipment to ensure that the combustion equipment canonly be operated when the aperture is open.The required cross-section must not be blocked by any closure orgrille.Safety precautionsFor gas combustion equipment, fuel lines must be equipped with thefollowing safety equipment immediately upstream of the gas combustionequipment:■ The fuel supply must automatically shut off in case of an externalthermal load in excess of 100 ºC.■ Up to a temperature of 650 ºC and over a period of at least 30 min,not more than 30 l/h (measured as air flow rate) must be able to flowthrough or out of the fuel line.Combustion equipment must be installed far enough away from combustiblematerials and built-in furniture, or be shielded from such material/furniture,so that at the rated output of the combustion equipmentno temperatures exceeding 85 ºC will occur. Alternatively, maintain adistance of at least 40 cm.Minimum clearances6Dimensions and clearancesTrade name Pyrot grate combustionRated output kW 100 150 220 300 400 540Part no.: 7423 656 7423 657 7423 658 7423 659 7423 660 7423 661Dimensionsa mm 700 700 900 900 1100 1100b mm 1920 1920 2200 2200 2440 24405822 516 GB44 PYROT

Design information (cont.)6.5 Water connectionHeating connectionsExisting systemsBefore connecting to an existing heating system, thoroughly flush thewood boiler to remove dirt and sludge.Otherwise, these dirt and sludge residues will be deposited in the boilerand can lead to local overheating, noise and corrosion. Boiler damagecaused by such deposits is excluded from our warranty. Where necessary,install dirt traps.Connections on the heating water sideOn the customer side, it is necessary to ensure that there is a watersupply independent of the power supply. This (redundant) designguarantees that the boiler is reliably cooled in the event of a powerfailure via the thermally activated safety valve. We also refer to thestandards and regulations listed in this document.Connect all heat consumers and heating circuits to the boiler flow andreturn connectors. Never make any connections to the safety flow orto other connections.We recommend you install shut-off valves into the heating flow andreturn lines, so that the entire water content will not have to be drainedif work is required on the wood boiler or the heating circuits.Easy installationFor safety temperatures up to 110 ºC, the boiler requires no intermediateflow piece for the connection of safety equipment.All connections required for the various pieces of equipment, e.g. forwater level or pressure limiters, are provided on the boiler.Boiler circuit and shunt pumpsIn order to reliably prevent boiler corrosion caused by flue gas condensation,the boiler return temperature must never fall below 65 °C.The boiler has variable output control. This requires a constant boilerflow rate of the water to be heated. The boiler circuit with boiler pumpand boiler mixer should therefore be installed in accordance with thesizing recommendations.Safety equipment to DIN EN 12828The safety equipment of the heating installation should be carried outby the authorised heating installer.EN 12828 applies to the design of DHW heating systems with safetytemperatures up to max. 110 ºC.This standard contains safety requirements laid down for boilers andboiler systems.■ Sealed expansion vessel■ A safety valve at the highest point of the boiler or a pipe connectedto the boiler■ The pipework between the boiler and the safety valve must not beable to be shut off. Pumps, fittings or restrictions must not be presentin this pipeworkSystem exampleGeneral information■ In order to reliably prevent boiler corrosion caused by flue gas condensation,the boiler return temperature must never fall below 65 °C.A boiler circuit pump with boiler mixer should be provided with inaccordance with the system scheme■ The sizing of the boiler circuit should be carried out in such a waythat the temperature differential between the flow and return is15 °C or smallerThe sizing of the boiler circuit should be carried out in such a way thatthe temperature differential between the flow and return is 15 °C orsmaller. The control of the boiler pump and boiler control valve is integratedin the control unit supplied.■ The discharge pipe should be constructed so as to prevent the possibilityof increases in pressure. Any expelled heating water must beable to be drained off safely. Arrange the outlet of the discharge pipeso that any water expelled from the safety valve can be safelyobserved and drained off■ A low water indicator is not required, except in attic heating centres(water level limiter available as an accessory)■ Thermometer and pressure gauge■ Integrating heat consumers■ The expansion vessel must be connected to the boiler, without shutoffdevices, via the boiler flow65822 516 GBPYROT 45

Design information (cont.)Sizing recommendation for systems with sealed expansion, buffer cylinder circuit if required1BA1EL212B28.1T3 3MMT1RLY20M20MBPVLSV22ExHB28.2DB28.3TTT33CKWZLTS131DAZTAZALSL1E1PYROT22B28.1DTTFT33B28.3TB28.2TExHH1K2GB28.1T3123T61L1Example 1A Additional heat sourceB Buffer cylinder as low loss header (version A)(3 sensors, optionally 5 sensors)C Distributor, heat consumerD Buffer cylinder 1E Buffer cylinder as low loss header (version B)(3 sensors, optionally 5 sensors)F Buffer cylinder 2G Low loss header (version C)(possible with large water volume in mains)H With additional heat source, dual mode - oil, gas, electric5822 516 GB46 PYROT

Design information (cont.)K Additional heat source controlled with a directional control valvefor oil/gas boilerL Additional heat source controlled with a directional control valvefor- Oil/gas boiler- Electric heaterSizing recommendationTrade name Pyrot rotation combustionRated output kW 100 150 220 300 400 540Boiler circuit NW 40 NW 50 NW 50 NW 65 NW 80 NW 80Thermally activated safety valve TS-131 pce 1 1 1 1 1 1Required water flow rate at 2.5 bar l/h 620 915 1230 1500 1880 2266Cylinder capacity l 1500 1500 2200 2500 3200 4300Supply line ZL R ¾ ¾ ¾ ¾ ¾ ¾Drain line AL R 1 1 1 1 1 1Safety valve type SV 68M R 1 1 1 1 ¼ 1 ¼ 1 ½Safety line SL NW 32 NW 40 NW 40 NW 50 NW 50 NW 656.6 Electrical installationElectrical installation should be carried out in accordance with the wiringdiagram. In the vicinity of hot parts (flue gas fan, flue pipe), cablesmust be routed in steel pipes for temperature protection and appropriateclearances.The cable entries for the motors and equipment should be dust-proofand unstressed.Positioning of the programming module and control panelThe programming module should be installed by the electrical companyresponsible for installation in a place that is easily accessible foroperation. Optimal positioning of the control panel can minimise cablelengths and therefore reduce costs. The location of the programmingmodule and control panel should be selected so that the negativeinfluence caused by thermal radiation (boiler front panel, boiler backpanel with flue gas collector and flue gas fan, as well as flue pipe) andexposure to dust during cleaning is minimised.The ambient temperature of the control panel (approx. 10 cm awayfrom the control panel) when operating the system must not exceed40 °C. In case of doubt, the control panel should preferably be locatedoutside the boiler room near to the boiler room door.NoteThe regulations of the local power supply utility must be observed.6.7 Safety equipmentExpansionIn the case of sealed expansion, the pre-charge pressure of the expansionvessel should be equal to the max. system height plus 0.2 bar.Extinguishing facilitiesA water extinguishing facility is required on the supply screw conveyor.This facility is used in the event of a fault (e.g. power failure) to safelyprevent burn-back. For safety reasons and in order to avoid damagecaused by flooding, it is not advisable to connect the extinguishingfacility directly to the water mains.This extinguishing facility is equipped with an extinguishing water container25 l with float switch and an adjustable Danfoss extinguishingvalve. In accordance with TRVB 118, the container should be equippedwith fill level monitoring. The PYROT rotation combustion systemautomatically switches off in case of a water shortage. In the case ofexcessive temperature, the supply screw conveyor is safely floodedbut to a limited extent.65822 516 GBPYROT 47

Design information (cont.)Extinguishing water containerPart no. 7387 785C Material supplyD CombustionANoteThe extinguishing water container is part of the boiler.B< 500CNote■ Adjustment, valve, Danfoss AVTA 15 50–90 °C3 corresponds to 80 °C.■ Lines should be secured in metal pipes (½“).■ The cold water supply must not be able to be isolated without the aidof a tool.DA N25 fill level monitoringB Extinguishing water container 25 l17,34 mmExtinguishing facility with cold water supplyPart no. 7388 521KWKW6ABABA CombustionB Dosing container with separating barrierKW Cold water supply DN 15 ½“ min. 2.0 bar, max. 3.0 barNote■ Lines should be secured in metal pipes (½“).■ The cold water supply must not be able to be isolated without the aidof a tool.NoteA shut-off gate valve is required as standard for an unpressurisedmaterial store or a rotary lock valve for a material store with overpressureor underpressure (charging with fan, e.g. wood processing operations).5822 516 GB48 PYROT

Design information (cont.)Prevention of combustion chamber overfillingIn accordance with TRVB 118, a fill level monitor should be installedto prevent overfilling of the combustion chamber. The boiler has twolight barriers for incandescence monitoring. A sensor directly on theinsert pipe is used to detect any sign of a burn-back risk and to counteractthis early on by means of a short term output increase (increasein material feed).Reignition protection (RZS)In accordance with TRVB 118, reignition protection is prescribed forall systems over 150 kW. If a spark detection and extinguishing facilityis not used, TRD 414 prescribes a constantly available separatingbarrier (TRD 414 relates primarily to wood remnants from the preparationand distribution of wood and wood materials). There are simplerways of achieving this for woodchips from the forestry and sawmillsector.Back burning protection, fuel supply (RSE)Additional "material transportation back burning protection" dependson the relevant requirements (location, size of the fuel store, material,pressure, regulations) and is a separate item of the standard deliveryordered from KÖB Holzfeuerungen GmbH.As a result, any prescribed protection device does not come into effectand normal operation is maintained with regard to the greatest possibleheat supply reliability.The boiler is equipped with a separating barrier and is operated permanentlywith underpressure. The boiler is then equipped with reignitionprotection (RZS) in accordance with both TRVB 118 andTRD 414.For this boiler, we recommend installing a rotary lock valve. In additionto the back burning protection, the penetration of infiltrating air via thesupply screw conveyor is also prevented.Shut-off gate valveThe shut-off gate valve is permissible in all unpressurised fuel storesand is considered suitable back burning protection in accordance withTRVB 118 (test certificate BV 2979/89).Rotary lock valveIf the wood remnants are introduced with fans in fuel storage rooms,due to the pressure load, at least one rotary lock valve is required toreduce pressure between the fuel store and the boiler. The rotary lockvalve is suitable for reducing pressure and at the same time is consideredsuitable back burning protection in accordance with TRVB 118(test certificate BV 2979/89).■ Max. permissible overpressure in the fuel store: + 500 Pa■ Max. permissible underpressure in the fuel store: + 0 PaLow water indicatorEN 12828 specifies that boilers must be equipped with a low waterindicator (water level limiter). Tests have verified that the burner willbe automatically switched off in the event of water shortage due to aleak in the heating system and oil burner operation, before the boileror the flue system reach unacceptably high temperatures.6Maximum pressure limiterIf the rated output of the wood boiler is more than 300 kW, a maximumpressure limit is required for each boiler in a system.For installation purposes, the wood boilers have a R½ connector ontop of the boiler.Minimum pressure limiterRecommended for flow temperatures in excess of 100 ºC. Onerequired per multi boiler system.5822 516 GBSafety valveEquip the boilers to EN 12828 with a type-tested safety valve. For allother operating conditions, this must be identified in accordance withTRD 721 with "D/G/H".Expansion vesselFor boilers above 300 kW, install an expansion vessel with blow-offand drain line near the safety valve. In order to prevent a risk causedby escaping steam, the discharge pipe must be routed to the outside.The pipework between the boiler and the safety valve must not be ableto be shut off. Pumps, fittings or restrictions must not be present in thispipework.The discharge pipe on the safety valve should be constructed so as toprevent the possibility of increases in pressure. Arrange the outlet ofthe drain line so that any water expelled by the safety valve can besafely observed and drained off.PYROT 49

Design information (cont.)Replacement, expansion vesselAn additional expansion vessel and discharge pipe are not required ifa second high limit safety cut-out and a second maximum pressurelimiter are installed.6.8 Fire protectionThe fire safety regulations for wood combustion systems vary dependingon the country.Fire safety, fuel storeThe measures required for this are not part of the standard delivery ofKÖB Holzheizsysteme GmbH.The regulations valid for the relevant installation location must beobserved.NoteIn this regard, the conditions of the local planning office must be fulfilledby the operator.6.9 CommissioningInitial commissioning of a newly installed system may only be carriedout by KÖB Holzheizsysteme GmbH or another contractor trained andauthorised by KÖB. Prior to commissioning, the system must be filledwith water, fuel must be stored for the commissioning and the installationmust be monitored.6Fuel for commissioningAs the boiler system is cold and residual moisture is also extractedfrom the refractory concrete during commissioning, the fuel for commissioningmust be at least air dry. The heat-up process should becarried out in the first three hours with low output. In order to check thefunction of the silo discharge system, not too much fuel should bestored so that, in the event of a fault, the discharge system can bequickly released to remedy the cause. For commissioning, dry fuel(max. w 20 %) should be stored in sufficient quantity for approx. 10 –24 full operating hours.Filling the heating systemUsually, the system is initially filled with raw water without chemicaltreatment. This must be filtered and be free of suspended solids. Particularattention should be paid to careful ventilation during filling. Inthe case of difficult water conditions (high hardness, etc.) and/or largewater volumes, VDI directive 2035 "Prevention of damage throughcorrosion and scaling in hot water heating systems" must be observed.Measures recommended by the directive for water treatment shouldbe carried out.Fuel quantities to be stored for commissioning:Rated outputQuantity100 kW approx. 800 kg150 kW approx. 1200 kg220 kW approx. 1500 kg300 kW approx. 2000 kg400 kW approx. 2500 kg540 kW approx. 3000 kgNoteThe fill pressure of the cold hydraulic seal should be approx. 0.1 barhigher than the pre-charge pressure of the sealed expansion vessel.However, it must not exceed a maximum of 3 bar.6.10 FuelsThe Pyrot was developed for processing dry wood remnants from thewood processing industry. This includes dry residual wood, shavings,sawdust, etc. and conditioned fuels (high grade, homogeneous qualityfuels). The combustion system is ideal for the combustion of pellets.Suitable fuelsThe Pyrot is suitable for the following dry to moist wood fuels: ■ Woodchips from forests up to a water content of 35 % (W35, G50)■ Industry pellets, with an ash content of max. 1.0 %■ Pellets with the quality seal DINplus or acc. to ÖNORM M 7135NoteThe following are unsuitable types of fuel: fossil fuels and those containingsulphur, such as anthracite and coke, as well as plastics,grain, straw, material soaked in flammable liquids and wood remnantstreated with plastics or wood preservatives.50 PYROT5822 516 GB

Design information (cont.)6.11 Fuel discharge by means of screw conveyorDischarge screw conveyor, pellet, D = 120 mmAs pellet transportation from a rectangular room with the possibility offilling from the top. The pellets trickle via a tilted intermediate floor intothe screw conveyor channel. The supply screw conveyor found insidethis channel transports the pellets to outlet.Standard delivery:■ Discharge screw conveyor for pellets according to project drawingNotePrice given per m; total length in m = length of conveyor channelNoteFor increases of 0° to 8°; exclusively for pellets; boiler output up tomax. 1250 kWTo be carried out on customer side:Delivery and installation of the intermediate floor (preferably made ofwood) incl. static calculation and sizing. The forces resulting from theweight of the combustion material (approx. 650 kg/m3) should betransferred to the silo floor and not through the discharge screw conveyor.Observe this when constructing the intermediate floor.SpecificationPellet discharge screw conveyor D=120 mmPart no. 7837 954a mm < 9250b mm > 750c mm < 1000065822 516 GBPYROT 51

Design information (cont.)5,92

Design information (cont.)■ Control of spur geared motor 3 x 400 V according to boiler controlunit■ Inspection cover with safety limit switch and sealed outlet6.12 Fuel discharge by means of agitatorsSpring core discharge AFPart no. 7387 846 for spring core discharge 3.5 mPart no. 7387 906 for spring core discharge 4.5 mSilo or bunker discharge with bottom agitator in lightweight version,especially for smaller bunker volumes and/or lower boiler outputs. Thefuel supply is carried out via a bottom agitator with two leaf spring arms,which fills a screw conveyor channel set into the floor (or intermediatefloor). If the silo is full, the leaf spring arms move to the cover disk.Drive is via a geared screw conveyor motor to the discharge screwconveyor and via an angular gear to the agitator. The spring core dischargeis suitable for round, square and rectangular rooms.Standard delivery:Spring core discharge according to the project drawing■ Bottom agitator with two leaf spring arms■ Drive unit with geared screw conveyor motor 3 x 400 V■ Control according to boiler control unit enabled by the following conveyordevice; speed/output:project-related and subject to boiler output and fuel■ Light barrier for monitoring the fill level at the end of the sealed screwconveyor channel■ Outlet with inspection cover and safety limit switchTo be carried out on customer side:■ Installation of an intermediate floor required (preferably woodenboards)Note1. Discharge screw conveyor must be ordered for this.2. Speed/output of the drives: sizing by KÖB design department.SpecificationSpring core discharge AF AF 3.5 m AF 4.5 mPart no. 7387 846 7387 906a Max. length of discharge screw conveyor m 6 6b Discharge circuit m 3.5 4.5c Boiler output at angle of inclination 0° 15°Torque at shaft Nm 450 450Pellets S 650 kW 540 540Woodchips from forest S 200 kW 300 220Shavings kW 220 150Maximum fill levelPellets S 650 m 2.7 2.7Woodchips from forest S 200 m 5.0 5.065822 516 GBPYROT 53

Design information (cont.)Sizing8,25 1,16 mm> 42> 25018,93 700 mm10,59 mm7,56 mm275385Aø a24,75 mm9008,25 mm8,80 13,20 320mm480 mm22,00 mm800Cø 1106,88 mm25013,75 mm3,03 mm30011,00 mm400ø a5004,40 mm52,24 4,14 mmb mm ø 15072,64 < 6000 mm 11,89 mm170B3,85 140 mm5,42 mm2054404,40 mm2,20 mm 9,93 mm803611606DEF73,85 mm< 600047,24 mmcd4,47 mm160GA Second leaf springB Installation opening(seal with fire-retardant panel)C Rotational directionD ShavingsE RemnantsF PelletsG Base (height adjustable)5822 516 GB54 PYROT

Design information (cont.)Note1. Installation position, horizontal:preferably in concrete with recess for screw conveyor and centralgear.2. Installation position, angled:exclusively with intermediate floor, preferably made from wood.3. Suitable for woodchips up to G30/50; not suitable for wood briquettesand shredded matter from used or waste wood.4. Sloping installation position reduces the discharge output and thedegree of emptying (by approx. 2.3 % per 1 degree slope).5. Speed/output: project-related and subject to boiler output and fuel,sizing by KÖB design department.Discharge screw conveyor AF to spring core dischargePart no. 7388 035The fuel is moved by the spring core discharge arms into the openconveyor channel in the silo. Outside the bunker, the screw conveyorchannel is sealed.NoteArticle price per m, always round up to whole numbers.The max. length of the discharge screw conveyor AF is 6 m.Total price = total length a in metres (max. 6 m) x individual price.Standard delivery:■ Conveyor channel with specially matched discharge screw conveyorHorizontal discharge AHPart no. 7387 965 for horizontal discharge up to D = 5.0 mPart no. 7387 845 for horizontal discharge up to D = 6.5 mHorizontal discharge with bottom agitator in heavy version, especiallyfor larger bunker volumes and/or high boiler outputs. The two agitatorarms each comprise one or two (depending on size) articulated arm(s)and an externally fitted leaf spring package. The agitator is driven subjectto the fill level of the discharge screw conveyor (control via lightbarrier).The discharge screw conveyor itself is enabled independently of theagitator by a separate drive unit according to the boiler requirement.The result is trouble-free operation and a long service life. When usingfor pellets, a cover panel is required over the screw conveyor channel.Maximum fill level and maximum slope must be observed.Standard delivery:Horizontal discharge according to the project drawing■ Bottom agitator with two arms and external drive with shaft routed toinside■ Drive for bottom agitator 3 x 400 V, with geared screw conveyormotor and torque support; control according to boiler control unit withenabling of discharge screw conveyor■ Drive unit for discharge screw conveyor with spur geared motor 3 x400 V and chain drive; control according to boiler control unit withenabling of the following conveyor device; speed/output: projectrelatedand subject to boiler output and fuel■ Light barrier for monitoring the fill level at the end of the sealed screwconveyor channel■ Outlet with inspection cover and safety limit switchTo be carried out on customer side:■ Installation of an intermediate floor required (preferably made fromwooden boards).Note1. Discharge screw conveyor (part no. 7387 603) must also beordered.2. Speed/output of the drives: sizing by KÖB design department.6SpecificationHorizontal discharge AH AH up to 5 m AH up to 6 mPart no. 7837 965 7837 845Discharge circuit f m 3.8 4.5 5.0 5.0 5.5 6.0Weight excluding conveyor channel kg 480 480 480 500 500 500Torque of the drivesA Nm ~2900 ~2900 ~2900 ~2900 ~2900 ~2900B Nm ~800 ~800 ~800 ~800 ~800 ~8005822 516 GBPYROT 55

Design information (cont.)42,99 mma2,96 29,62 mm mme246ø fø g18,03 mmø 1490D34,54 mm37,56Cmm 14,59 b mm7,29 mm< 200 d c> 100004,33 mm 4103,46 mm287585ABA Axis, agitatorB Screw conveyor axisC Rotational directionD Centre, agitatorSizing the horizontal discharge AH with agitator and discharge screw conveyoraMin. length of protective panel for bunker wallsbSealed channelcOpen conveyor channel downstream of agitator centredOpen conveyor channel upstream of agitator centre max. 2.8 meWall clearance to centrefDischarge circuit from 3.9 to 6.1 m depending on bunker situationgEffective scope 0.8 to 0.95 x fDepending on: fuel, installation position, compression, etc.65822 516 GB56 PYROT

14,67 mm13,59 mmDesign information (cont.)A4,85 4,00 mm4,81 < 330 mm 406A3,65 mm< 20076,25 mm B A> 10000BAB361BABCa< 200> 10000AA-AB-B< 170 287A< 300= =46< 330> 725F1360C1260< 600DEH33,67 mmL1 + 200CCKED630GC-C1,52 mm 50H< 3306300,96 mm3065822 516 GB1260PYROT 57

Design information (cont.)A Installation position, horizontal (version 1)B Installation position, sloping (version 2)C Finished floor, concrete-lined (concrete block out for recessedinstallation)A Finished floorB Seal installation opening with fire-retardant panelC Base (height adjustable)Fuel-specific limitsMaximum fill levelPellets S 650 m 4.5Briquettes S 350 m 6.0Woodchips from forest S m 8.0250Boiler output max.Pellets S 650 kW 2000Briquettes S 350 kW 720Woodchips from forest S kW 720250a Angle of inclination max.Pellets S 650 6°Briquettes S 350 0°Woodchips from forest S25015°D Axis, screw conveyorE Axis, agitatorF Sub-structureG Building floorH Centre, agitatorK Concrete block out (for recessed installation)NoteFor pellets, the cover panels part no. 7387 895 are required.Discharge screw conveyor AH for horizontal dischargePart no. 7387 603The fuel is moved by the horizontal discharge agitator arms into theconveyor channel, which is open across the entire bunker length. Outsidethe bunker, the screw conveyor channel is sealed.Standard delivery:■ Conveyor channel running through the entire system with speciallymatched discharge screw conveyorNoteArticle price per m.The max. length is 10 m. Total price:Total length L in m (max. 10) x individual price.Protective panel AH for bunkerPart no. 7387 985Metal cover to protect against damage to the bunker wall caused bythe agitator arms. Mounting on the internal wall of the silo.Standard delivery:■ Protective panel, paintedLength and number matched to the project■ Rawl plugs and screws6Cover panel AH for pelletsPart no. 7387 895Metal cover of the open screw conveyor area to reduce the inlet crosssection.NoteObserve the following when changing the fuel:1. Changeover: forest woodchips to pellets:Before filling the silo with woodchips, remove the cover panels fromthe discharge screw conveyor.2. Changeover: pellets to forest woodchips:The discharge system is to be extended by means of cover panels.Standard delivery:■ Cover panel, paintedLength and number matched to the project■ Screws5822 516 GB58 PYROT

Design information (cont.)6.13 Fuel discharge by means of funnel dischargeFunnel dischargeMaterial discharge for round silos is carried out with an agitator integratedin the discharge casing. In its centre, the discharge screw conveyoris driven via a solid universal joint. When the silo is full, the screwconveyor moves into a vertical position. The funnel limits the angle ofthe screw conveyor when the silo is empty. Drive is via a spur gearedscrew conveyor motor to the agitator. In the case of material compressionin the discharge casing, as a result of increased drive power consumption,the supply direction of the screw conveyor is changed automaticallyfor a period set at the factory. This releases the compression,preventing a fault.Standard delivery:■ Funnel discharge as per order data with drive unit 3 x 400 V■ Automatic control of the drive for the spur geared screw conveyormotor for both rotational directions■ Safety limit switch installed on inspection cover of discharge casingVersion and drivesFunnel discharge AP-11 AP-12Part no. 7837 794 7837 958Diameter discharge circuit max. m 6.0 7.5Boiler outputs withPellets S 650 kW 3000 2500Woodchips from forest S 200 kW 1250 2500Shavings S 130 kW 1250 2500Torque at screw conveyor Nm ~1500 ~3000ø a2,21 mm57,48 mm2,26 mm95 ø b95< 1.8 x a40,00°40°18,86 < 600 mm 17,94 c mm6,69 mmd 2105,15 mm11,22 e mm8,32 mm32065822 516 GBPYROT 59

Design information (cont.)Version and drivesFunnel discharge AP-11 AP-12 AP-Z02 *10Part no. 7837 794 7837 958 7388 042a m 6.0 7.5 7.5b mm 2205 3005 3005c mm 708 1030 1030d mm 282 310 -e Nm 431 469 -Additional outlet flangePart no. 7387 520Additional connection option for conveyor devices to discharge casingfor twin-boiler system.Funnel, largePart no. 7388 042Surcharge for a funnel diameter of 3000 mm.NoteIn the case of funnel discharge AP-12, a funnel diameter of 3000 mmis required.6.14 Fuel discharge by means of push floor (sizing)Number and length of the pushrods with a maximum dumping heightApplies to pushrods for pushrod drive (AS) individual and for the pushrodwith discharge function of the AS-twin (standard version). Permissibledumping heights below are maximum values and should not beexceeded.Special version as individual rod with a width of up to 3.00 m possibleon request.Max. permissible dumping height and length of the pushrods in S200Trade name PushrodType AS-2.50 AS-2.25 AS-2.0 AS-1.75 AS-1.5Part no.: 7387 992 7387 995 7387 836 7387 956 7387 989Dumping height with length:12 m 3.1 3.6 4.1 4.9 5.810 m 3.9 4.6 5.3 6.3 7.48 m 5.3 6.1 7.0 8.4 9.86 m 7.5 8.6 9.8 12.3 14.96Max. permissible dumping height and length of the pushrods in S350Trade name PushrodType AS-2.50 AS-2.25 AS-2.0 AS-1.75 AS-1.5Part no.: 7387 992 7387 995 7387 836 7387 956 7387 989Dumping height with length:10 m 2.6 3.0 3.5 4.1 4.88 m 3.4 4.0 4.55 5.4 6.46 m 4.9 5.6 6.4 8.0 9.7Max. permissible dumping height and length of the pushrods in S450Trade name PushrodType AS-2.50 AS-2.25 AS-2.0 AS-1.75 AS-1.5Part no.: 7387 992 7387 995 7387 836 7387 956 7387 989Dumping height with length:10 m 2.1 2.4 2.7 3.2 3.88 m 2.7 3.1 3.6 4.2 5.06 m 3.8 4.4 5.0 6.2 7.5*10 Option for article AP-11. Required for AP- 125822 516 GB60 PYROT

Design information (cont.)Max. permissible dumping height and length of the pushrods in S650Trade name PushrodType AS-2.50 AS-2.25 AS-2.0 AS-1.75 AS-1.5Part no.: 7387 992 7387 995 7387 836 7387 956 7387 989Dumping height with length:12 m 1.5 1.8 2.0 2.4 2.910 m 1.9 2.3 2.6 3.1 3.78 m 2.6 3.0 3.5 4.2 4.96 m 3.7 4.3 4.9 6.1 7.4Specification for the pushrod drivesTrade name Pushrod driveType Individual standardTwin standardHeavyversionPart no.: 7387 978 7387 915 on requestPiston diameter mm 180 180 220Piston rod diameter mm 90 90 110Lift mm 600 600 800Test pressure bar 240 240 240Pressure force at 190 bar FZD kN 484 484 722Tensile force at 190 bar FZZ kN 362 362 542Length from centre of cylinder - piston bossmmType K1080Type L1230-1575Forces on the buildingIn the case of pushrod drives for discharge push floors with severalpushrods, the hydraulic cylinders have pipes laid in opposite flowdirections, i.e. the first cylinder pulls, the second cylinder pushes, thethird cylinder pulls, etc. The cylinder with the lowest pressure dropsgenerally moves first into the end position, then the next one.When all cylinders are in the end position, the oil pressure increasesup to the response pressure for the pressure diverter valve (set to 190bar at the factory) and this switches to the opposite direction.65822 516 GBFG1 Maximum tensile force on the weld base of bunker upwards permetre lengthFS Total standard forces on the front panel (slot discharge)FRFR1FS1Total standard forces on the back panelStandard force of a pushrod on the back panelStandard force of a pushrod on the front panelPYROT 61

Design information (cont.)FZD Maximum pressure force on the weld base for pushrod driveFZZ Maximum tensile force on the weld base for pushrod driveNumber of pushrods 1 2 3FS mm 1x FS1 1x FS1 2x FS1FR mm 1x FR1 1x FR1 110Standard versionAS-001/2Heavy versionY articleFS1 FR1 FZZ FZD FG1 FM1 Z160 kN 130 kN 362 kN 484 kN 12 kN 100 kN 125 mm240 kN 195 kN 542 kN 722 kN 15 kN 150 kN 150 mmSlot discharge, for pullingThe drawing below is a general arrangement and should not be usedfor construction design. A project-related drawing must be producedfor construction design.NoteOnly KÖB original weld bases are permissible for the pushrod drive.SpecificationSlot discharge, for pulling Screw conveyorD = 190 mmScrew conveyorD = 250 mma mm 650 700b mm 380 430c mm 350 400d For max. dumping height, see page 60 For max. dumping height, see page 60e mm > 3200 > 3200f mm 1500-2500 1500-250065822 516 GB62 PYROT

Design information (cont.)5,54 1,98 mm125c10,29 a mmAB7,92 mm6,02 mmb0,89 50 19,48 mm 1230 9,50 mm mm60027,72 > 1750 mm95,02 (4000 - 12000) mm5000,48 mm50 - 150d49,44 mmACECAKfFZZFZDHGFS1A - AFDFR1D1,19 > 150 mm0,79 > 100 19,80 mm1500 - 2500 19,68 mm1500 0,79 - 2500 mm mm42,36 mm > 10015,84 mmeA6Required order data for the above example:Position Part no. Quantity Unit DesignationA 7387 978 2 pce Pushrod drive AS individual with hydraulic cylinder type LB 7387 924 1 pce Cover for push floor screw conveyor (optional)C 7387 952 2 pce Weld base, AS individualD 7387 830 2 pce Weld base, bunkerE Hydraulic compartmentFCorresp. to length2 pce Pushrod (incl. stop wedges)See pricelistGCorresp. to dimensions1 pce Push floor screw conveyorSee pricelistH 7387 904 1 pce Version and drive, AQ standardKCorresponding boiler outputSee pricelist1 pce Hydraulic drive, ASH individual5822 516 GBCentre dischargeThe drawing below is a general arrangement and should not be usedfor construction design. A project-related drawing must be producedfor construction design.NoteOnly KÖB original weld bases are permissible for the pushrod drive.PYROT 63

Design information (cont.)SpecificationCentre discharge Screw conveyorD = 190 mmScrew conveyorD = 250 mma mm 350 400b mm 270 360c For max. dumping height, see page 60 For max. dumping height, see page 60d In the middle third of the silo length In the middle third of the silo lengthe mm > 3200 > 32002,09 mm125A3,96 mm2508,07 mm12,67 mm5,54 mm0,84 5017,10 mm 1080 9,50 600mm33,26 > 2100mm4,28 mm95,02 (5000 - 12000) mm500800FM1ab +100C50 - 150 0,43 mmcA - AB6KHA0,51 mm 46,86 mm50 - 150dGFDE15,84 mm1,30 > 150 mm0,79 19,69 1500 mm - 2500 19,73 mm 1500 1,58 - 2500 mm mm43,16 e mmA5822 516 GB64 PYROT

Design information (cont.)Required order data for the above example:Position Quantity Unit DesignationA 2 pce Pushrod drive AS individual with hydraulic cylinder type KB 2 pce Weld base, bunkerC Cover, centre dischargeD 1 pce Push floor screw conveyorE 4 pce Pushrod (incl. stop wedges)F 1 pce Version and drive, AQ standardG Hydraulic compartmentH 1 pce Hydraulic drive, ASH individualK 2 pce Weld base, AS individualSlot discharge with fill functionThe drawing below is a general arrangement and should not be usedfor construction design. A project-related drawing must be producedfor construction design.NoteOnly KÖB original weld bases are permissible for the pushrod drive.SpecificationSlot discharge with fill function Screw conveyorD = 190 mmScrew conveyorD = 250 mma mm 650 700b mm 380 430c mm 350 400d Charging chutee For max. dumping height, see page 60f mm > 3200 > 320065822 516 GBPYROT 65

Design information (cont.)2,04 mm 1255,44 3,57cmm mm 230235AB9,71 a mm5,86bmm3,57 16,78 mm 1080 9,32 mm 600mm7,70 mm 500> 46,60 3000mm1,90 mm 23015,53 e mm15,53 mmdA - A50 - 0,50 150 mmC46,60 < 8000 mm 46,60 < 12000 mm93,20 (< 20000) mm6H49,60 mmAGgFZZFZDFEFS1C D3,03 0,54 mm390 50 - 150FR1> 1500,78 > 19,42 100 mm 1500 - 2500 19,42 mm 1500 0,78 - 2500 mm mm > 10041,55 mm1,16 mmfA5822 516 GB66 PYROT

Design information (cont.)Required order data for the above example:Position Quantity Unit DesignationA 2 pce Pushrod drive AS twin with hydraulic cylinder type KB 1 pce Cover for push floor screw conveyor (optional)C 2 pce Weld base, bunkerD 2 pce Pushrod (incl. stop wedges)E 1 pce Push floor screw conveyorF 1 pce Version and drive, AQ standardG 1 pce Hydraulic drive, ASH twinH 2 pce Weld base, AS twin6.15 Fuel discharge by means of push floor (accessory)Pushrod drive, individualPart no. 7387 978With hydraulic cylinders, pushrods to which transport wedges areattached are moved forwards and backwards. Stop wedges are fixedto the floor between the transport wedges. As a result of this movement,the wood fuel is dispensed from the bunker and fed into thetrough of the push floor screw conveyor.Standard delivery:■ Mount with hinge lug connection for the cylinder■ Hydraulic cylinder with 2 HP ball valves and 2 hydraulic hoses■ Pushrod up to bunker wall with hinge lug connection■ Material for complete hydraulic pipeworkWeld base, pushrod drive, individualPart no. 7387 952Solid steel structure for installation in concrete to secure the pushroddrive. The structure has been load tested and permanently withstandsthe dynamic stress. A prerequisite for this is the prescribed embeddingin concrete.Standard delivery:■ 1 weld base per pushrod driveTo be carried out on customer side:■ Location, positioning and connecting of the weld base with the ironreinforcement on the customer side■ Embedding the weld base in concrete■ Static calculation and sizing of the iron reinforcement on the customersideNoteOnly KÖB original weld bases are permissible.Pushrod drive, twinPart no. 7387 915With hydraulic cylinders, pushrods to which transport wedges areattached are moved forwards and backwards. Stop wedges are fixedto the floor between the transport wedges.In the case of a twin pushrod drive, each longitudinal section of thebunker is moved with two pushrods working independently of oneanother.■ Charging pushrod for quick removal of the fuel filled at the bunkerend in the direction of the bunker centre■ Discharge pushrod for the dispensed discharge of the wood fuel intothe trough of the push floor screw conveyorThe two pushrod drives are located one above the other and are supportedby a joint mount.Standard delivery:■ Mount for two cylinders with a hinge lug connection■ Two hydraulic cylinders with 2 HP ball valves and 2 hydraulic hoses■ Discharge pushrod up to bunker wall with hinge lug connection■ Charging pushrod up to start of level charging function with hingelug connection■ Material for complete hydraulic pipework6Weld base, pushrod drive, twinPart no. 7387 916Solid steel structure for installation in concrete to secure the pushroddrive. The structure has been load tested. If embedding in concretehas been carried out in accordance with the regulations, the weld basepermanently withstands dynamic stress.Standard delivery:■ 1 weld base per pushrod driveTo be carried out on customer side:■ Location, positioning and connecting of the weld base with the ironreinforcement on the customer side■ Embedding the weld base in concrete■ Static calculation and sizing of the iron reinforcement on the customersideNoteOnly KÖB original weld bases are permissible.5822 516 GBWeld base, bunkerPart no. 7387 830Steel profiles for welding the pushrod guide elements and the troughof the push floor screw conveyor. The weld base in the bunker is alsothe slide rail for the pushrod.Standard delivery:■ Rolled profiles UNP 240 with anchoring irons per pushrod over theentire length■ Angle profiles 50/50/5 with anchoring irons over the entire width(push floor screw conveyor)PYROT 67

Design information (cont.)To be carried out on customer side:■ Manufacturing the concrete floor■ Installation of the profiles level with the concrete floor (max. deviationof 5 mm to 10 m)PushrodPushrod in solid structure with crosswise transport wedges, side connectionprofiles, stop wedges and guide elements.Length x width of the pushrod gives the floor area moved with thetransport wedges.NoteArticle price per m.Total price is calculated as follows:for pushrod drive, individual: (pushrod drives in pce x length of bunkerin m) + (1 x width of bunker in m) x article price.for pushrod drive, twin: (pushrod drives in pce x length of bunker in m)+ (2 x width of bunker in m) x article price.NoteWidth of transport wedge in m; article price per m.Total price: length in m x article price (for max. length, see table 3).Standard delivery:■ Pushrod split into rod, transport wedges and guide elements (weldingduring installation)■ Stop wedges incl. fixing materialsSpecificationPushrod B 1.50 B 1.75 B 2.00 B 2.25 B 2.50Part no. 7837 989 7387 956 7387 836 7387 995 7837 992Width m 1.50 1.75 2.00 2.25 2.50Hydraulic drive, AS individualHydraulic drive to actuate single pushrod drives with discharge function.When the required fill level of the push floor screw conveyor isreached, the discharge function is switched off.■ Hydraulic drive comprising:– Gear pump 3 x 400 V– Oil container– Non-return valve– Pressure limiter valve– Pressure diverter valve– Return filter– Oil level indicator– Pressure gauge– Shut-off valve– Oil filling– Hydraulic hoses– Wall mounting brackets■ Control:According to the boiler control unit, fuse protected with temperatureand level switch in the oil container6Use of the hydraulic drives for various push floors (drives plus rods) *11Hydraulic drive, AS individual V9 V18 V40Rated output of the boiler/s kW 100-720 750-1250 1250-2500Part no. 7837 877 7387 009 7387 896Output, gear pump *12 kW 4 4 7.5Supply volumel/min 9 9 20Stage 1Draughtbar 200 200 200Stage 1Supply volumel/min - 18 40Stage 2Draughtbar - 100 100Stage 2Oil content l 30 55 80Max. number of pushrods *13 pce 3 3(4) 3(4)*11 Additional equipment for driving hydraulically controlled silo covers possible.*12 Information on function: with a two-stage gear pump, the pump runs in standard mode at stage 2, which means that the pushrods movequickly. Only when the pressure drop is increased (e.g. in the case of a forward movement of the discharge pushrod with a high fill level)does the pump switch to stage 1.*13 Values in brackets: option only in coordination with project management at the factory.5822 516 GB68 PYROT

Design information (cont.)Hydraulic drive, AS twinHydraulic drive to actuate twin pushrod drives with discharge and fillfunction. When the required fill level of the push floor screw conveyoris reached, the discharge function is switched off. If there is free spaceabove the discharge push floor to accommodate top-up fuel, the topand back pushrod carries out the fill function. When the fuel is requiredby the heating system, the fill function is interrupted and switched tothe discharge function of the bottom and front pushrod.■ Hydraulic drive comprising:– Gear pump 3 x 400 V– Oil container– 4/2-way solenoid valve– Non-return valve– Pressure limiter valve– Pressure diverter valve– Return filter– Oil level indicator– Pressure gauge– Shut-off valve– Oil filling– Hydraulic hoses– Wall mounting brackets■ 2 infrared light barriers for level monitoring, bunker■ Control of discharge function:According to the boiler control unit, fuse protected with temperatureand level switch in the oil container■ Control of fill function:according to the light barrier enabling in the bunkerUse of the hydraulic drives for various push floors (drives plus rods) *14Hydraulic drive, AS twin V18 V40Rated output of the boiler/s kW 100-1250 1250-2500Part no. 7387 013 7387 893Output, gear pump *15 kW 4 7.5Supply volumel/min 9 20Stage 1Draughtbar 200 200Stage 1Supply volumel/min 18 40Stage 2Draughtbar 100 100Stage 2Oil content l 55 80Max. number of pushrods *16 pce 3(4) 3(4)Push floor screw conveyor D = 190 mmPart no. 7387 811In order to transport the discharged fuel away from the pushrods, thepush floor screw conveyor extends over the entire push floor width asan open trough screw conveyor. For further transportation, the pushfloor screw conveyor, depending on the transfer situation, is designedin the sealed version as a trough or pipe.Standard delivery:■ Push floor screw conveyor according to the project drawingNoteArticle price per m.6Push floor screw conveyor D = 250 mmPart no. 7387 887In order to transport the discharged fuel away from the pushrods, thepush floor screw conveyor extends over the entire push floor width asan open trough screw conveyor. For further transportation, the pushfloor screw conveyor, depending on the transfer situation, is designedin the sealed version as a trough or pipe.Standard delivery:■ Push floor screw conveyor according to the project drawingNoteArticle price per m.5822 516 GB*14 Additional equipment for driving hydraulically controlled silo covers possible.*15 Information on function: with a two-stage gear pump, the pump runs in standard mode at stage 2, which means that the pushrods movequickly. Only when the pressure drop is increased (e.g. in the case of a forward movement of the discharge pushrod with a high fill level)does the pump switch to stage 1.*16 Values in brackets: option only in coordination with project management at the factory.PYROT 69

Design information (cont.)Drive, push floor screw conveyor, standardPart no. 7387 904Standard version for push floor screw conveyor with pulling drive anddischarge into a drop section. The system is driven via spur gearedmotor and chain in dust-proof chain guard.Standard delivery:■ Drive unit with spur geared motor 400 V and chain drive■ Light barrier across the entire open area for monitoring the fill level(overfill protection)■ Discharge with inspection cover, safety limit switch and downpipe/adaptor for the following conveyor device (not required in pushingversion)Drive, push floor screw conveyor, standardPart no. 7837 904Torque at screw conveyor Nm ~800 ~800 ~800Push floor screw conveyor Type AQ-L150 AQ-L150 AQ-L190Function, push floor screw conveyor Pulling Pushing PullingMax. length, push floor screw conveyor m 10 8 10Max. boiler output with woodchips kW 300 300 1250Drive, push floor screw conveyor, higher-powerPart no. 7387 866Special, powerful version of the push floor screw conveyor for moredifficult applications (high pump rate and/or pushing function). Thesystem is driven via a more powerful version of a spur geared motor,bearing and chain in dust-proof chain guard.Standard delivery:■ Drive unit in powerful version and additional axial bearing with pushingfunction with spur geared motor 400 V and chain drive; matchingand control on project basis■ Light barrier across the entire open area for monitoring the fill level(overfill protection)■ Discharge with inspection cover, safety limit switch and downpipe/adaptor for the following conveyor device (not required in pushingversion)Drive, push floor screw conveyor, higher-powerPart no. 7837 866Torque at screw conveyor Nm ~1200 ~1200 ~1200Push floor screw conveyor Type AQ-L190 AQ-L250 AQ-L250Function, push floor screw conveyor Pulling Pushing PullingMax. length, push floor screw conveyor m 10 8 10Max. boiler output with chippings kW 1500 2500 2500Cover, push floor screw conveyor6Part no. 7387 924Cover for the open trough of the push floor screw conveyor and thebunker slot. The cover is fitted to the front bunker panel and can beopened via a hinge. It helps to protect maintenance personnel againstcontact.Standard delivery:■ Cover of the push floor screw conveyor with wall mounting bracketand hinge according to project drawing■ Limit switch for emergency stop of the push floor and the push floorscrew conveyor when opening the coverNoteArticle price per m.Total price: length A in m x article price [A = width of bunker].6.16 Charging the boiler with fuelTrough screw conveyorPart no. 7387 941 for trough screw conveyors D = 150 mmPart no. 7387 873 for trough screw conveyor D = 190 mmPart no. 7387 955 for trough screw conveyor D = 250 mmThe trough screw conveyor is an extremely reliable means of transportationfor all granulated wood fuels. Observe the restriction in theangle of inclination.Standard delivery:■ Trough screw conveyor according to the project drawingNoteArticle price per m. Total price: length L in m x article price5822 516 GB70 PYROT

lDesign information (cont.)58,32 mm4,53 mm 5,10 mm14,52 mm166< 100008,75 mm1,47 mm176500300 50AA - A7,54 mme1,11>6,4030mm mma/bfc8,30°Ac5,51 mmdg802,32 mm2,32 mm6,38 mm8013,77 mm 4,82~ 500mm14,51166mm500a5,80 mmb8,12 mm7,31 mmAk he7,54 mmA3,77 mm7,54 mm15,67 mmBA Drive (optionally on the l.h. or r.h. side)B Inspection clearanceTrade name Trough screw conveyorType MF 150 MF 190 MF 250Part no.: 7387 941 7387 873 7387 955a mm 180x180 220x220 280x280b mm 7180 7200 7200c (Woodchips from forests) 20° 20° 20°c (Pellets) 45° 45° 45°d mm 140 280 380e mm 220 260 352f mm 216 256 317g mm 150 190 250h mm 130 130 154k mm 260 260 350l mm 540 540 6656Drive, trough screw conveyor, standardProven version for the trough screw conveyor with pulling drive anddischarge into a drop section. The system is driven via spur gearedmotor and chain in dust-proof chain guard.Standard delivery:■ Drive unit with spur geared motor 3 x 400 V and chain drive■ Inlet with light barrier for monitoring the fill level (overfill protection)■ Discharge with inspection cover, safety limit switch and downpipe/adaptor for the following conveyor deviceTrade name Drive, trough screw conveyorPart no.: 7387 971Torque at screw conveyor Nm ~800 ~800 ~800Diameter, screw conveyor mm 7150 7190 7250Function Pulling Pulling PullingMax. length m 10 10 8Max. boiler output (pellets) kW 2000 3200 -Max. boiler output (woodchips from forests) kW 600 1500 25005822 516 GBPipe screw conveyorPart no. 7387 990 for pipe screw conveyor D = 120 mmPart no. 7387 962 for pipe screw conveyor D = 190 mmPart no. 7387 928 for pipe screw conveyor D = 250 mmPYROT 71

Design information (cont.)The pipe screw conveyor is ideal for conveying pourable wood fuelsand/or in the case of steep ascending inclines.Standard delivery:■ Pipe screw conveyor according to the project drawingNoteArticle price per m.Total price: length L in m x article price.Trade name Pipe screw conveyorPart no.: 7387 990 7387 962 7387 928Diameter of the screw conveyor max. mm 120 190 250Trade name Pipe screw conveyorType MR-L120 MR-L190 MR-L250Part no.: 7387 990 7387 962 7387 928a mm 140 280 380b mm 150x150 220x220 280x280c mm 140 220 324d mm 120 190 250Angle of inclination max. with pushing screw conveyore mm - 90° 90°Angle of inclination max. with pulling screw conveyore mm 65° 65° 65°f mm 7150 7200 7200g mm 140 280 380h mm 540 540 665k mm 130 130 154l mm 260 260 35065822 516 GB72 PYROT

Design information (cont.)4,08 mm5,99 mm2,58 mmdc51,94 mma168 < 10000b6,23 mm25046,27°e3,77 mmg2,56 mmf12,26 4,35 12,92 166mmmm13,90 h mm3,36 10,55 mm mm500~ 500Akl1,94 mm4,29 mm76,92 mm4,60 mma168 < 10000b3559,30 mm5,55 mmcd3,72 mm45,58°e4,61 mmg5,25 mm fBCDE6A Drive (optionally on the l.h. or r.h. side)B Distributing containerC Distributing screw conveyorD Pipe screw conveyor, vertical, pushingE Pipe screw conveyor, horizontal, pushingDrive, pipe screw conveyor, pelletPart no. 7387 949Simple version of the pipe screw conveyor MR 120 with pulling driveand only permissible for pellets. The system is driven via spur gearedmotor and chain in dust-proof chain guard.Standard delivery:■ Drive unit with spur geared motor 3 x 400 V and chain drive■ Inlet/discharge in simple version for pellets; incl. downpipe/adaptorfor the following conveyor device5822 516 GBTrade name Drive, pipe screw conveyor, pelletType MR-11Part no.: 7387 949Diameter of the screw conveyor max. mm 120Torque at screw conveyor Nm ~800Function PullingLength of the screw conveyor max. m 10Boiler output max. kW 1200PYROT 73

Design information (cont.)Drive, pipe screw conveyor, standardPart no. 7387 814Standard version for pipe screw conveyor with pulling drive and dischargeinto a drop section. The system is driven via spur geared motorand chain in dust-proof chain guard. Also possible as pushing versionfor MR 150 and exclusively with pellets.Standard delivery:■ Drive unit with spur geared motor 3 x 400 V and chain drive■ Inlet with light barrier for monitoring the fill level (overfill protection)■ Discharge with inspection cover, safety limit switch and downpipe/adaptor for the following conveyor device (not required in pushingversion)Trade name Drive, pipe screw conveyor, standardType MR-12Part no.: 7387 814Diameter of the screw conveyor max. mm 150 150 190Torque at screw conveyor Nm ~800 ~800 ~800Function Pulling Pushing PullingLength of the screw conveyor max. m 10 8 10Boiler output max. when using:Pellets kW 200 1200 3200Woodchips from forests kW 300 - 1250Drive, pipe screw conveyor, high-powerPart no. 7388 002Special, powerful version of the pipe screw conveyor for more difficultapplications (high pump rate and/or pushing function). The system isdriven via a more powerful version of a spur geared motor, bearingand chain in dust-proof chain guard.Standard delivery:■ Drive unit in powerful version and additional axial bearing with pushingfunction with spur geared motor 3 x 400 V and chain drive■ Inlet with light barrier for monitoring the fill level■ Discharge with inspection cover, safety limit switch and downpipe/adaptor for the following conveyor device (not required in pushingversion)Trade name Drive, pipe screw conveyor, high-powerType MR-13Part no.: 7388 002Diameter of the screw conveyor max. mm 190 250 250Torque at screw conveyor Nm ~1100 ~1100 ~1100Function Pulling Pushing PullingLength of the screw conveyor max. m 10 8 10Boiler output max. when using:Woodchips from forests kW 1500 2500 25006.17 Fuel storage in on-site pellet store (sizing)6Sizing the pellet storage roomThe storage room should be more rectangular than square and shouldbe of a size which allows an annual quantity of fuel to be stored. Thesize of the storage room depends on the heating load of the building.The floor area should not be less than 2 x 3 m.The required size of the storage room for the annual fuel volume inm 3 (incl. empty space) is calculated by multiplying the building heatingload (in kW) by a factor of 0.9 (m 3 /kW).Example:Heating load of the building 150 kW150 kW x 0.9 (m 3 /kW) = 135 m 3Available space (storage room minus unusable area due to slopingfloors) = 135 m 3 x 2/3 +135 m 3 = 225 m 3Amount of pellets = 225 m 3 x 650 kg/m 3= 146,250 kg/m 3 ≈ 147 tStorage room size = 135 m 3 / 2.3 m (room height)= 59 m 2 floor areaIn order to store the annual fuel quantity, a room size of 7 m x 8.5 mis sufficientStored amount of energy = 58,500 kg x 5 kWh/kg = 292,500 kWh5822 516 GB74 PYROT

Design information (cont.)200 mmABC≥ 500 mmD40°EGFA Fill connectorB Return connectorC Air spaceD Sloping floorE Empty spaceF Discharge systemG Available volume = ⅔ of the roomPellet storage room design and required system componentsABCDKH≥1006GE < 9250F

Design information (cont.)■ The pellet storage room must be dry, as pellets will swell up markedlyif exposed to moisture. This leads to substantial difficulties in deliveringthe fuel to the boiler.■ The pellet storage room must be of solid, leak-proof construction, asloading pellets into the room creates dust and the pellets will exerthigh pressure against the walls.■ Doors or access hatches into the pellet storage room must openoutwards and must be sealed against dust egress (with an all-roundseal). With a pellet amount in excess of 6.5 tonnes, doors must beself-closing and fire-retardant T30.■ Fit protective boards on the inside of the door opening, so that pelletsdo not push against the door (see page 76).■ Avoid electrical installation in the pellet storage room. Essentialelectrical installations must be of explosion-proof type – in accordancewith current regulations.■ a In Austria, surrounding walls and ceilings in the storage roommust be designed in accordance with fire resistance class F90, anddoors or access hatches in accordance with T30. Observe the fireregulations to TRVB H118 and the respective legal requirements.■ Avoid the installation of water pipes inside the storage room becauseof condensation and the risk of burst pipes.■ Pellet storage rooms should be equipped with a fill H and a returnconnector G with a coupling 4” DW100 (fire hose connector) withextension pipes leading into the pellet storage room. Pipes shouldbe metal (not plastic), should be connected to the brickwork andshould be earthed.■ Fit a deflector C opposite the fill connector to protect the pellets andthe brickwork.■ The pellet storage room must be free from foreign bodies (smallstones, wood particles, etc.).■ Close the wall outlet for the room discharge from the storage roomside in a fire-proof manner (e.g. rendering).The screw conveyor system may be up to max. 10 m long.Additional safety instructions for pellet storesTo operate the pellet store, we also recommend observing the followingsafety instructions:1 Access by unauthorised persons is not permitted, and doors mustbe kept sealed2 Smoking, fires and other sources of ignition are prohibited3 Risk to life due to odourless carbon monoxide (CO) and a lack ofoxygen4 Before entering, ensure sufficient ventilation is in place - keepdoor open.5 Entry into the storage room is only permitted with the supervisionof a person standing outside the storage room6 Risk of injury caused by moving parts7 Ensure filling is carried out under the conditions stipulated by theheating installer and pellet supplier8 Protect the pellets from moistureProtective boards with Z bracketsA B AZ brackets are available as accessories for the installation of the protectiveboards.Never install Z brackets up to the ceiling, to facilitate the removal oraddition of protective boards.6CA Z bracket (length 2000 mm)B Protective board (30 mm thick; on-site)C Door to the storage roomFill connector and return connectorArrange the connectors so that no overpressure is created in the pelletstorage room during the filling process. Keep the return connectorunrestricted, even when the maximum filling level in the storage roomhas been reached (see page 75). The connectors should be locatedas high as possible inside the storage room to enable it to be filled toits maximum. To prevent pellets hitting the ceiling, the fill connectorshould be at least 20 cm below the ceiling (fit protective boards if theceiling is plastered). The connectors should be located along the narrowside of the storage room. Pellets are blown approx. 4 - 5 m withstraight fill connectors. Where a 2x 45° bend fitting is located beforethe entry into the storage room, fit a straight pipe of at least 0.5 m lengthon the other side to protrude into the storage room. This enables thepellets to reach the required filling velocity and therefore the required"blow-in" depth.EarthingThe connectors must be earthed in order to prevent static loads duringthe filling process. Generally the connection of each pipe element tothe equipotential bonding of the building is recommended. At the veryleast, connect each pipe element securely to the brickwork, either bysetting the pipe into the brickwork (without thermal insulation) or viapipe clips set into the brickwork.5822 516 GB76 PYROT

Design information (cont.)Connector length and locationThe length of the fill connector is subject to the distance from the returnconnector. Connectors may be spaced out < 500 mm if both connectorsare set into a cellar window.~ 100If connectors must be located on the long side of the storage room, werecommend alternating the filling between the connectors. Thisensures more efficient filling. In any case both connectors should beearthed. A deflector should be installed opposite both connectors.Internal pellet storage roomIf the fill and return connectors must be routed through an adjacentroom, clad both with a fire-resistant material compliant with class F 90(rockwool, or similar). Earth each extension piece via pipe clips. Plasticpipes should not be used as extension pieces.≥ 500Connector clearance ≥ 500 mmA B C DA Fill connectorB Return connector≥ 500A ConnectorB Fire-resistant cladding (F 90)C Extension pipeD Pipe clip< 500~ 100Connector clearance < 500 mmA Fill connectorB Return connector6≥200 mmB Aapprox. 100 mmBA5822 516 GBAlternating fillingA DeflectorB Fill and return connectorPYROT 77

Design information (cont.)Connector installation optionsSetting into brickworkThe connector is bricked into the outlet without thermal insulation.A Fill connectorB Wall outlet Ø 150 mmWall installation with screwsThe connector is secured to the outside wall with screws and is earthedvia a pipe clip.C Pipe clip for earthingD Wall outlet Ø 110 mmCB AD6A Fill connectorB ScrewsWindow installation with screwsA plate is set into the window opening. The connector is fitted throughthe plate, secured with screws and earthed via a pipe clip.C Pipe clip for earthingD Outlet Ø 110 mmE Window apertureCB ADEA Fill connectorB Screws5822 516 GB78 PYROT

Design information (cont.)Installation into a lighting ductConnectors may be installed through a wall or through a window opening.The shortened fill and return connectors are inserted in a 45º bend.The bend is inserted into an extension pipe routed through the wall orthe window opening.C Extension pipeD Wall outlet Ø 110 mmorOutlet Ø 110 mmE 45º bendBAECDA Fill connectorB Pipe clip for earthing6.18 Fuel storage in on-site pellet store (accessories)Deflector 1.42 x 1.25 mPart no. 7388 188The deflector comprises 4.0 mm thick chipboard with a fabric lining forhigh strength.Install the deflector B at a clearance of at least 100 mm from the wallopposite the fill connector. This deflector protects the pellets as wellas the brickwork or the rendering/plaster.Pieces of plaster/render or wall that have been knocked off can hinderthe pellet supply and the ash removal from the boiler combustionchamber.ACBStandard delivery:■ Deflector 1.4 x 1.25 m■ Section anchor with snap link for fastening≥200 mm6A Fill connectorB Deflector (1000 x 1200 mm)C Fill width approx. 4 - 5 mFill connector and return connector, straightPart no. 7388 213Standard delivery:■ Blow-in connector with Storz coupling 4”■ Mounting flange 200 x 200 x 2 mm■ Zinc-plated steel pipe with male thread M 107 x 2.0■ Dummy coupling with imprint and padlockFill connector and return connector, 45°5822 516 GBPart no. 7388 154Standard delivery:■ Blow-in connector with Storz coupling 4”■ Mounting flange 200 x 200 x 2 mm■ Zinc-plated steel pipe with male thread M 107 x 2.0■ Dummy coupling with imprint and padlockPYROT 79

Design information (cont.)Extension of fill connector and return connectorPart no. 7388 056Standard delivery:■ Extension DN 100, length 700 mm, zinc-plated■ Union nut for fitting■ Clip for fastening6.19 Fuel storage in on-site bunker (accessories)Silo cover, manual FDM 2.9/1.3 mPart no. 7387 782Cover for secure sealing of openings for wood fuel delivery. The coveris controlled manually with leg springs as an opening aid. The openinghas a fall protection grille to prevent anyone falling in when the coveris open.NoteFor the filling process (opening, filling, closing), the local regulationson accident prevention must be observed (e.g. enclosure, safety personnel).■ Cover– Surface, aluminium button plate– Watertight, welded■ Leg springs as opening aidTo be carried out on customer side:■ Creating the ceiling recess with concrete collar■ Seal between cover frame and supporting surface, concrete collar■ Padlock to protect against incorrect operationStandard delivery:■ Steel supporting structure– Permissible load 250 kg/m²– Sand-blasted– Primed with zinc dust and painted■ Welded fall protection grille with rod clearance 150 mm65822 516 GB80 PYROT

Design information (cont.)A All-round seal (not included in standard delivery)B Rod clearance, fall protection grilleC 10x secured with screwsBunker cover hydraulic FDHCover for secure sealing of openings for wood fuel delivery. The coveris controlled manually using a hydraulic cylinder. The silo cover is preventedfrom falling shut in the event of a hose break.NoteFor the filling process (opening, filling, closing), the local regulationson accident prevention must be observed (e.g. enclosure, safety personnel).Where wind is strong (greater than 10 m/s), the cover mustnot be opened.Standard delivery:■ Supporting structure: permissible load 250 kg/m², made from steel,sand-blasted, primed with zinc dust and painted■ Cover surface: aluminium button plate, watertight, welded■ Hydraulic cylinder with hinge lug connection, pipe break protection,mount, hydraulic hoses 1 m long■ Rubber apron to deflect chippings on the hinge sideTo be carried out on customer side:■ Creating the ceiling recess with concrete collar■ Seal between cover frame and supporting surface, concrete collar65822 516 GBPYROT 81

Design information (cont.)40,55 mmh62,77 mmgABC6A Fall protection grille (optional)B Rubber apronC All-round seal, required, not included in standard deliveryRecommendation: Kemperol combi roof sealsSpecificationType *17Part no.FDH 4.0/2.47388 011FDH 5.5/2.47387 903FDH 7.0/2.47387 834FDH 8.5/2.47387 884Opening length x widtha mm 4020 5520 7020 8520c mm 2400 2400 2400 2400Dimensions, concrete collarb mm 4420 5920 7420 8920d mm 2800 2800 2800 2800e mm 250 250 250 250Dimensions, cover, externalf mm 3025 3025 3025 3025g mm 4500 6000 7500 9000h mm 2924 2924 2924 2924Number of hydraulic cylinders pce 1 1 1 2Weights, cover kg 1029 1231 1516 1823*17 Type 7.0/2.4 and 8.5/2.4 with covered expansion joint for heat expansion5822 516 GB82 PYROT

Design information (cont.)Fall protection grille 120 for FDHFall protection grille for corresponding bunker cover in several elementsto prevent anyone falling in when the cover is open. Each elementis prepared for installation of a shaker motor (shaker motor foradditional charge).Standard delivery:■ Support profile for installation in ceiling recess■ Fall protection grille in several elements, mesh size: 200 x 120 mmSpecificationFall protection grille, type 120 for FDH 4.0/2.4 FDH 5.5/2.4 FDH 7.0/2.4 FDH 8.5/2.4Part no. 7387 914 7387 817 7388 014 7387 922Quantity pce 2 2 3 4Weight per pce kg 117 161 133/141 124/120Fall protection grille 200 for FDHFall protection grille to prevent anyone falling in when the cover isopen. Suitable for corresponding bunker cover in several elements.Each element is prepared for installation of a shaker motor (shakermotor for additional charge).Standard delivery:■ Support profile for installation in ceiling recess■ Fall protection grille in several elements, mesh size: 200 x 200 mmSpecificationFall protection grille, type 200 for FDH 4.0/2.4 FDH 5.5/2.4 FDH 7.0/2.4 FDH 8.5/2.4Part no. 7387 910 7387 824 7387 930 7387 983Number of elements pce 2 2 3 4Weight per pce kg 104 143 118/125 110/106Bunker cover, movable FDBCover for secure sealing of openings let into travel planes for woodfuel delivery. The surface of the cover is flush with the travel plane.The sub-structure has a drip channel. The cover is controlled manuallyusing a hydraulic cylinder. The silo cover is prevented from falling shutin the event of a hose break.Standard delivery:■ Supporting structure:Perm. wheel load: FDB 3.0/2.0: 7.5 t; FDB 3.8/2.4 and FDB 3.2/3.2:10.0 t; steel, sand-blasted, primed with zinc dust and painted■ Cover surface:For filling with asphalt or concrete on the customer side■ Sub-structure:Has drip channel and two drain connectors NW 100■ Hydraulic cylinder:With hinge lug connection, pipe break protection, mount andhydraulic hoses 1 m longTo be carried out on customer side:■ If the travel surface is sloping, the water flowing to the cover mustbe drained away upstream of the cover frame by means of a drainchannel■ Drain line for rainwater, channel heating■ Seal between cover frame and supporting surface of cover frame■ Filling of the cover surface with a bitumen layer and asphalt or concrete,watertight design (max. permissible weight of the fill 2200 kg/m 3 )65822 516 GBPYROT 83

Design information (cont.)6A1,90 ø102 mmC56,10 mma58,53 mmmm 1,87 mmmm1,8747,31 e mm1,68 90 mm 40,20 f mm 5,30 2906,78 (120) mm90CCBd 90D31,97 2,26 mm 120mm39,71 mmb~ 1730G86,08°86°37,68 mmcE±0,0FH< 10%A Filling on customer side (concrete or asphalt)B Channel for rainwaterC Rainwater drain (on site)D Threaded fittingE Filling levelF Fall protection grille (optional)G All-round seal (required) (on site)H Drain channel, running water (on site)5822 516 GB84 PYROT

Design information (cont.)SpecificationBunker cover, movable FDB FDB 3.0/2.0 m FDH 3.8/2.4 m FDH 3.2/3.2 mPart no. 7387 850 7387 793 7387 974a mm 3000 3800 3200b mm 2110 2510 3310c mm 2000 2400 3200d mm 3150 3950 3350e mm 2530 2930 3730f mm 2150 2550 3310Weight, cover, FDB kg 1520 2360 2680Max. permissible wheel load t 7.5 10 10Fall protection grille, 120 for FDBFall protection grille to prevent anyone falling in when the cover isopen. Suitable for corresponding bunker cover in several elements.Each element is prepared for installation of a shaker motor (shakermotor for additional charge).Standard delivery:■ Support profile for installation in ceiling recess■ Fall protection grille in several elements■ Mesh size:200 x 120 mmSpecificationFall protection grille, type 120 for FDB 3.0/2.0 m FDH 3.8/2.4 m FDH 3.2/3.2 mPart no. 7387 889 7388 016 7387 868Number of elements pce 2 2 2Weight per pce kg 130 205 230Fall protection grille, 200 for FDBFall protection grille to prevent anyone falling in when the cover isopen. Suitable for corresponding bunker cover in several elements.Each element is prepared for installation of a shaker motor (shakermotor for additional charge).Standard delivery:■ Support profile for installation in ceiling recess■ Fall protection grille in several elements■ Mesh size:200 x 200 mmSpecificationFall protection grille, type 200 for FDB 3.0/2.0 m FDH 3.8/2.4 m FDH 3.2/3.2 mPart no. 7387 798 7387 801 7388 019pce 2 2 2Weight per pce kg 120 180 210Shaker motor for fall protection grillePart no. 7387 810The shaker motor sets the fall protection grille in an oscillating motion.This prevents the delivered fuel from bridging the fall protection grilleand therefore ensures a steady material flow during filling.Standard delivery:■ Shaker motor, 3 x 400 V incl. control, thermal protection and installationmaterial■ Key switchTo be carried out on customer side:■ Electrical connection of shaker motor and key switchNoteOne shaker motor is required per fall protection grille element. In addition,when using shaker motors, a large control panel must be includedin the plans.6Hydraulic drive, bunker charging cover, ASHPart no. 7388 856The hydraulic drive is used exclusively for actuating a bunker cover,which is opened hydraulically. The cover is opened by the hydrauliccylinder when the key switch button is pressed. When the key switchbutton is released, the load holding valve fixes the cover in position.Standard delivery:■ Hydraulic drive comprising:– Gear pump 4 l/min incl. motor 1.5 kW 3 x 400 V– Oil container 12 l, non-return valve– Pressure limiter valve– Pressure diverter valve– Return filter– Oil level indicator– Pressure gauge– Shut-off valve– Oil filling5822 516 GBPYROT 85

Design information (cont.)– Hydraulic hoses– Wall mounting brackets■ Control:– According to the boiler control unit, fuse protected with temperatureand level switch in the oil container■ Key switch button OPEN/OFF/CLOSED for installation of a lockingcylinder on the customer side (installation close to cover)NoteApplication in the case of silo discharge systems without hydraulicactuation (AF, AG, AP, external discharge).Cover drives for hydraulic drive, ASHType ASH 1 ASH 2 ASH 3Part no. 7388 034 7387 851 7387 807The auxiliary equipment for the hydraulic drive ASH of the pushroddischarge for actuating hydraulically opening bunker covers. The coversare opened by the hydraulic cylinder when the key switch buttonis pressed. When the key switch button is released, the load holdingvalve fixes the cover in position.Control:According to boiler control unit.One key switch button OPEN/OFF/CLOSED per cover for installationof a locking cylinder on the customer side.(Installation close to bunker cover so that the motion process can bemonitored).Standard delivery:■ One valve block per cover, each equipped with:– 2 solenoid valves– 1 load holding valve– 2 non-return throttle valves6Silo filling screw conveyor FS 300Part no. 7387 808Supply screw conveyor in open version for filling a fuel store locatedinside a building from an external tipping trough. Generally, at leasttwo silo filling screw conveyors are required. The silo filling screw conveyorsare routed through the fuel store in such a way so as to maximisefilling.Standard delivery:■ Silo filling screw conveyor according to order data■ Mounting brackets for wall mounting■ Duct for routing through a wallDrive, silo filling screw conveyorPart no. 7388 012The drive is located inside the building but outside the fuel store. Thismeans that the silo filling screw conveyor has a pulling effect. Forsafety reasons, the key switch button must be located close to thetipping trough. The operator must permanently monitor the filling processfrom outside. Releasing the button stops the screw conveyorimmediately.Standard delivery:■ Drive unit, silo filling screw conveyor■ Spur geared motor with matched torque and pump rate, 3 x 400 V■ Control of screw conveyor drive according to boiler control unit■ Key switch button ON/OFF for installation of a locking cylinder onthe customer side (installation close to cover).NoteScrew conveyor length with drive unit max. 10 m.NotePrice per m:Total length = wall inner up to end of screw conveyor in drop area (silocover).NoteThe load bearing capacity of the walls must be verified on site by astructural engineer.5822 516 GB86 PYROT

Design information (cont.)10,19 1,54 mm2,58 mm350 1300 2008,72°> 10°A-A100,13°100°9,59 < 800mm> 10000< 150059,18 mm12,36 mm13,51 mmA< 15002,31 ø300 mm22,06 mm2860A6.20 Back burning protection5822 516 GBRotary lock valveRotary lock valve for fire protected separation of combustion systemand fuel store with overpressure or underpressure, and with simultaneousmaterial transportation for installation in a drop section. Therotary valve is made entirely from steel and is permissible as a fireprotection between the combustion system and woodchip silos inwood processing operations with overpressure or underpressure. Thedrive device is a spur geared motor with sprung torque support. If thewoodchips are extremely coarse, briefly running the system in reverseavoids jamming.Fire protection: RSE according to TRVB and VKFMax. permissible overpressure in the fuel store: + 500 PaMax. permissible underpressure in the fuel store: ± 0 PaStandard delivery:■ Rotary lock valve according to order data■ Control of spur geared motor for both rotational directions accordingto boiler control unitPositioning:■ Directly above the supply screw conveyor■ Exception for funnel discharge: directly at the casingNoteRotary lock valve 190 for supply system D 120 mm.Rotary lock valve 260 for supply system D 150 mm and D 190 mm.13,24 a mm10,67 mmøb7,86 mm27,93 c mm7,86 e mm14,00 mmdf6PYROT 87

Design information (cont.)Trade name Rotary lock valveType MZ 190 MZ 260Part no.: 7388 022 7387 888a mm 260 330b mm 7193 7264c mm 662 709d (Di) mm 150 202e (Da) mm 200 250e (Di) mm 150 202e (Da) mm 200 250f mm 274 346Output, drive kW 0.75 0.75Drive speed rpm 252 25Shut-off gate valve MA 220Part no. 7387 959Fire protected appliance for installation in a drop section, for mechanicalseparation of the combustion system and unpressurised fuel store.The shut-off gate valve opens automatically and closes with zero voltsvia a spring balancer in the event of burnout, risk of burn-back or powerfailure.Material: steel/brassDrive: spring return motor, fire protection: RSE according to TRVB andVKFStandard delivery:■ Shut-off gate valve according to order data■ Control of shut-off gate valve according to boiler control unit■ Spring return motor (torque 30 Nm)158 3412,36 mm24013,91 mm220x220AB230410 605785 23035028710156A Shut-off gate valve closedB Shut-off gate valve openDownpipe L = 1.0 mPart no. 7387 942Connection of a drop section between the discharge system or conveyordevice and an onward conveyor device by means of a downpipe.NoteThe length of the downpipe is 1 m.Design (diameter, profile) of the downpipe is matched to the relevantproject at the factory.Special adaptorPart no. 7387 939Connection of a drop section between the external discharge systemand an onward conveyor device by means of a special adaptor.NoteDesign (diameter, profile) of the special adaptor is matched to the relevantproject at the factory.5822 516 GB88 PYROT

Design information (cont.)6.21 Connection on the flue gas sideChimneyThe system is equipped with a flue gas fan and therefore the combustionequipment does not require a draught. The stack sizing should becarried out in the same way for combustion equipment with a pressurejetoil or gas burner without draught requirement (flue gas temperatureat rated load 160-200 °C). The PYROT rotation combustion systemhas variable output control modulating between 30-100 % of ratedoutput. This results in flue gas temperatures in the range ofmin. 100 °C and max. 250 °C. In order to avoid a risk of soot contamination,there should be an insulated chimney. The route from the fluegas fan to the chimney should be as short as possible. 90° bendsshould be avoided wherever possible. Flue pipes more than 1 m longshould be thermally insulated. The chimney should be connected risingat an angle of 30- 45°. The flue pipe incl. inlet to the chimney mustbe gas-tight. For the operation of the Pyrot rotation combustion inaccordance with the regulations, a draught stabiliser (draught limiter)is required in the chimney.Flue pipe (sizing)The induced draught fan may cause vibrations, which can lead toexcessive noise. We therefore recommend you mate the connector tothe chimney with a flexible flue pipe adaptor.Observe the following when connecting the flue:6,64 mm 20,54amm> 1000E6,16 mmAA chimney compliant with regulations relevant to the rated boiler outputis required for efficient boiler operation.Provide verification to DIN EN 13384.Note that in its lower output range, flue gas temperatures below90 ºC may be generated. Therefore connect the boiler to a moistureresistantchimney (thermal resistance class I to DIN 18160 T1).If the boiler is not being connected to a moisture-resistant chimney,carry out a chimney calculation or request a chimney assessment(values for a chimney calculation, see page 10).C Lambda probe with measured value transducerD Flue gas temperature sensorE Flue gas fan■ Install the flue pipe rising to the chimney (with 45º if possible).■ Never push the flue pipe too far into the chimney.■ Ensure the full flue gas path (incl. cleaning aperture) is gas-tight.■ Never seal the flue pipe into the chimney. Connect flue pipe with aflexible flue pipe adaptor.■ Provide a cleaning aperture.■ Wall liners to adapt to flue systems by third party manufacturers.■ Provide the flue with thermal insulation of at least 30 mm thickness.c5,57 mm 6,90 mmdDbACB6A Draught limiterB RecirculationTrade name Pyrot rotation combustionRated output kW 100 150 220 300 400 540Part no.: 7423 656 7423 657 7423 658 7423 659 7423 660 7423 661a mm 292 292 292 323 323 442b mm 200 250 250 300 350 350c mm 245 232 257 277 355 355d mm 345 358 358 352 375 375Flue gas routing (accessories)5822 516 GBFlue bend 0-90°Version: black, without insulationFlue bend 0-90°Part no.D = 200 mm 7388 176D = 250 mm 7388 169D = 300 mm 7388 203D = 350 mm 7387 424PYROT 89

Design information (cont.)Flue pipe, L = 1000 mmVersion: black, without insulationFlue pipe, L = 1000 mmPart no.D = 200 mm 7388 233D = 250 mm 7388 194D = 300 mm 7388 148D = 350 mm 7387 4256.22 Sound insulationBracesTo avoid the transmission of structure-borne noise during the operationof the fuel transportation equipment, the braces and the anchorsof the relevant conveyor device are placed on high quality Sylomerbases (plastic anti-vibration mounts for noise attenuation) or anchoredwith a Sylomer support and a fixing plate in the building structure. Theanchors with heavy load anchors are separated from the braces withSylomer washers.Standard delivery:■ Sylomer washer■ Sylomer support■ Sylomer base■ Fixing plate for the braces of the relevant equipmentTrade nameTypeDischargescrew conveyorSupplyscrew conveyorSound insulation, bracesInsert Spring core Horizontaldischarge dischargeAsh removalFlue gasdust extractorPart no.: 7419 991 7419 992 7419 994 7419 996 7419 997 7419 998 7419 999Note■ For each different means of fuel transportation, the sound insulationarticle should be used once. Example: 1 AH + 1 sound insulationAH-AS.■ Installation room characteristics relating to the physical buildingstructure largely determine the transmission of structure-borne noisein the building. It is important to note that the specified measures donot offer full sound insulation.■ Building related measures (brick openings, fire barriers, floatingscreeds, etc.) must be coordinated with structural engineers andarchitects and are not part of standard delivery and therefore notwithin our area of responsibility.Appendix77.1 Sizing the expansion vesselIn accordance with EN 12828, water heating systems must be equippedwith a diaphragm expansion vessel. The size of the expansionvessel is subject to the heating system specification and should bechecked in each case.Quick selection table for calculating the vessel size V nSafety valvep svbar 3.0 V nPre-charge bar 1.0 1.5 1.8 litrespressureSystem volumelitres 220 — — 25V A 340 200 — 35510 320 200 50840 440 260 801050 540 330 1001470 760 460 1402100 1090 660 2002630 1360 820 2503150 1630 990 3004200 2180 1320 4005250 2720 1650 5005822 516 GB90 PYROT

Appendix (cont.)Selection exampleDatum:p sv = 3 bar (response pressure of the safety valve)H = 13 m (static ceiling of the system)Q = 18 kW (rated output of the heat source)v = 8.5 l/kW (specific water capacity)panel radiators 90/70 °C= 1000 l (volume of buffer cylinder)V PHThe specific water capacity v was determined as follows:■ Radiators: 13.5 l/kW■ Panel radiators: 8.5 l/kW■ Underfloor heating: 20 l/kWCalculation:V A = Q x v + 1000V A = 18 kW x 8.5 l/kW + 1000 l= 1153 lIf possible, when calculating the gas pre-charge pressure, select asupplement of 0.2 bar:p 0 ≥ H/10 + 0.2 bar≥ (13/10 + 0.2 bar) = 1.5 barp 0From the table:With p sv = 3 bar, p 0 = 1.5 bar, V A = 1153 lV n = 250 l (for V A max. 1360 l)Selected:1 x diaphragm expansion vessel N 250 (from Vitoset pricelist)■ All details relate to a flow temperature of 90 °C.■ The tables have allowed for a hydraulic seal to DIN 4807-2.Recommendations:■ Select a sufficiently high safety valve response pressure:p sv ≥ p 0 + 1.5 bar■ For circulation pumps, due to the inlet pressure required, select atleast 0.3 bar above the pre-charge pressure even for attic/roofspaceinstallations: p 0 ≥ 1.5 bar■ Set the water side filling/starting pressure of vented systems in theircold state at least 0.3 bar above the pre-charge pressure:p F ≥ p 0 + 0.3 barConversion factor for flow temperatures other than 90 °CFlow temperature °C 50 55 60 65 70 75 80 85 90 95 100Conversion factor 3.03 2.50 2.13 1.82 1.59 1.39 1.24 1.11 1.00 0.90 0.82Divide the vessel size found in accordance with the above tables by the conversion factor.7.2 General information regarding low pressure hot water boilers with safety temperaturesof up to 110 ºCThe pressure equipment (hot water boiler) has been built in accordancewith TRD 702 and should be equipped in line with that Directive.Observe the operating conditions in that Directive. Subject to type, thisboiler meets the following standards regarding its stated rated outputand technical requirements:■ DIN 4702 or EN 303■ EN 297■ EN 483■ EN 677(See details on the type plate and the enclosed documentation). Duringinstallation and commissioning of this wood boiler, observe all localBuilding Regulations and regulations concerning combustion systems,as well as the following Standards, Regulations and Directives:■ DIN 18160-1: Flue system (design versions)■ DIN 1988: Technical Regulations for Drinking Water Installations(TRWI)■ DIN 4753: DHW systems for DHW and process water■ EN 12828: Heating systems in buildings – design of DHW heatingsystems■ EN 13384: Flue systems – Thermal and flow calculations■ TRD 702: Equipment level for steam boiler systems with hot waterboilers class II■ Also observe EN 12953 with:– Low pressure hot water boilers with safety temperatures > 110 to120 ºC■ EN 12953-1: Boilers with large water chambers – general information■ EN 12953-6: Boilers with large water chambers – Equipmentrequirements■ EN 12953-7: Boilers with large water chambers – Requirements forcombustion systems for liquid or gaseous fuels for the boiler■ EN 12953-8: Boilers with large water chambers – Safety valverequirements■ EN 12953-10: Boilers with large water chambers – Feed water andboiler water requirementsUse of oil combustion■ DIN 4755: Oil combustion equipment■ DIN 4787-1: Atomising oil burner (in excess of 100 kg/h throughput)■ DIN 51603-1: Liquid fuels; fuel oil EL, minimum requirements■ EN 230: Atomising oil burners as mono block version – equipmentfor safety, monitoring and control, as well as safety times■ EN 267: Pressure-jet oil burner■ TRD 411: Oil combustion for steam boilers (where applicable)Use of oil combustion■ EN 298: Burner control units for gas burners and boilers with orwithout fans■ EN 676: Pressure-jet gas burner■ DVGW Code of Practice G 260/I and II: Technical rules for gasquality■ DVGW-TRGI 2008: Technical rules for gas installations■ TRD 412: Gas combustion for steam boilers (where applicable)■ TRF 1996: Technical rules for LPG75822 516 GB7.3 Pipe connectionsAll pipe connections to the wood boiler should be made free fromstress and torque.PYROT 91

Appendix (cont.)7.4 Electrical installationCarry out the electrical connection and installation in accordance withVDE regulations (DIN VDE 0100 and DIN VDE 0116), local regulationsand the technical connection requirements laid down by your electricitysupply company.■ DIN VDE 0100: Installation of HV systems with rated voltages up to1000 V■ DIN VDE 0116: Electrical equipment for combustion systems7.5 Operating instructionsAccording to EN 12828, section 5 and EN 12170/12171, the systeminstaller must produce operating instructions for the whole system.7.6 Flue systemOnly flue pipes that meet Building Regulations may be used with condensingsystems.7.7 Checks as part of the Building Regulations approval processAs part of the Building Regulations approval process, condensingcombustion equipment is tested by the flue gas inspector (where applicable)for adherence to Building Regulations and any general recognisedtechnical rules to be observed.The State Building Regulations, their implementation orders and thecombustion equipment ordinances, as well as the general buildingapprovals and permits of the higher supervisory authority, in individualcases, are part of the Building Regulations requirements.75822 516 GB92 PYROT

Keyword indexAAccessories■ For control unit............................................................22, 23, 25, 27■ For the boiler.................................................................................32■ For the control unit........................................................................15Agitators■ Discharge system.........................................................................53BBoiler circuit pump............................................................................45Boiler room.......................................................................................42Building Regulation approval process..............................................92Bunker cover■ Bunker filling.................................................................................81■ Movable........................................................................................83CChimney...........................................................................................89Combustible materials......................................................................44Combustion air.................................................................................43Commissioning■ Fuel quantity to be stored.............................................................50Connection on the flue gas side.......................................................89Content■ Limits...............................................................................................7Control unit■ Accessories.................................................................15, 22, 23, 27■ Specification, function.............................................................14, 25DDelivered condition.............................................................................8Delivery............................................................................................42Design..............................................................................................41Diaphragm expansion vessel...........................................................90EECOTRONIC....................................................................................14Expansion vessel.......................................................................49, 90Extinguishing facilities......................................................................47Extinguishing water container..........................................................48FFall protection grille■ Bunker filling.................................................................................83Flow temperature.............................................................................41Flue pipe..........................................................................................89Fuel....................................................................................................6■ Limits...............................................................................................7Fuels................................................................................................50LLow water indicator..........................................................................49MMastercontrol.............................................................................25, 27Maximum pressure limiter................................................................49Minimum pressure limiter.................................................................49Minimum wood fuel requirements......................................................7OOutput management........................................................................22PPellet storage room design..............................................................75RRemote transfer...............................................................................23Requirements for boiler room...........................................................42SSafety equipment.......................................................................45, 47Safety precautions...........................................................................44Safety temperature...........................................................................42Shunt pump......................................................................................45Siting................................................................................................42Sizing the pellet storage room..........................................................74Sound insulation...............................................................................90Specification, control unit.................................................................14Specification - boiler...........................................................................9Spring core discharge■ AF.................................................................................................53TTwo-boiler systems....................................................................25, 27WWoodchips.........................................................................................6■ Quality characteristics.....................................................................6■ Requirements..................................................................................6Wood fuel■ Regulations and standards.............................................................7Wood pellets......................................................................................6■ Forms of delivery............................................................................6■ Quality characteristics.....................................................................6■ Requirements..................................................................................6HHalogenated hydrocarbons..............................................................43Handling...........................................................................................42Heating connections.........................................................................45Horizontal discharge■ AH.................................................................................................555822 516 GBPYROT 93

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5822 516 GBPYROT 95

Printed on environmentally friendly,chlorine-free bleached paperSubject to technical modifications.Viessmann Werke GmbH&Co KGD-35107 AllendorfTelephone: +49 6452 70-0Fax: +49 6452 70-2780www.viessmann.comKöb Holzheizsysteme GmbHFlotzbachstrasse 33A-6922 WolfurtTelefon: +43 (0)5574 6770-0Telefax: +43 (0)5574 65707www.koeb-holzfeuerungen.com5822 516 GB96 PYROT