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Ventilation and heating unit GEA MultiMAXX®

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GeschäftbereichLuftechnikInstructions for service <strong>and</strong> maintenance<strong>Ventilation</strong> <strong>and</strong> <strong>heating</strong> <strong>unit</strong> <strong>GEA</strong> MultiMAXX ®Model range HN- New GenerationVK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


Content <strong>GEA</strong> MultiMAXX ®Content1 <strong>GEA</strong> range of products ...................................................... 22 Type key ............................................................................. 33 Unit structure ..................................................................... 54 Safety <strong>and</strong> notice to the user .......................................... 84.1 Scope of maintaining <strong>and</strong> servicing instruction ........................ 84.2 Symbols Used ............................................................................... 84.3 Safety, responsibility, work ....................................................... 104.4 Use specifications ....................................................................... 104.5 Safety rules <strong>and</strong> st<strong>and</strong>ards ........................................................ 114.6 Reconstruction <strong>and</strong> changes ..................................................... 114.7 Spares.......................................................................................... 114.8 Occupational skills ..................................................................... 115 Technical specifications ................................................... 125.1 Function specifications .............................................................. 125.2 Unit size <strong>and</strong> heat exchanger outlets layout ........................... 135.3 Storage ....................................................................................... 156 Transport <strong>and</strong> h<strong>and</strong>ling ................................................... 166.1 Transport .................................................................................... 166.2 H<strong>and</strong>ling <strong>and</strong> transportation of the <strong>unit</strong>................................. 166.3 Lagerung .................................................................................... 167 Assembly .......................................................................... 177.1 Assembly site load capacity ....................................................... 177.2 Under Ceiling Mounting ........................................................... 177.3 Wall mounting ........................................................................... 187.4 Unit assembly ............................................................................. 207.5 Unit cladding assembly ............................................................. 208 Energy Connection........................................................... 238.1 Tube fitting ................................................................................ 239 Power supply connection ................................................ 249.1 Power wiring diagrams ............................................................. 249.2 Terminal box or electrical box .................................................. 259.3 Connection with switching devices MC 3xx ............................. 269.4 Summary of control <strong>and</strong> regulation boards <strong>GEA</strong> MATRIX ..... 299.5 Controller mounting.................................................................. 359.6 Electrical connection to <strong>GEA</strong> MATRIX ...................................... 369.7 Network <strong>and</strong> shielding connection .......................................... 4610 Commissioning ................................................................. 5310.1 Safety test ................................................................................... 5310.2 Bleeding the device ................................................................... 5410.3 Condensate conveying pump inspection ................................. 5510.4 Terminator ................................................................................. 5610.5 The address setting .................................................................... 5810.6 The limits function setting ........................................................ 6010.7 Switching the <strong>unit</strong> on ................................................................ 6210.8 Data connection check .............................................................. 6310.9 Control inlets <strong>and</strong> outlets check ............................................... 6410.10 Function ..................................................................................... 6611 Maintenance ..................................................................... 7112 Correcting faults .............................................................. 7213 Dismantling <strong>and</strong> disposal ................................................ 7313.1 Dismantling ................................................................................ 7313.2 Recycling ..................................................................................... 73Declaration of conformity ............................................... 75VK-Nr. 2225481GB / 08.20054 Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Unit structure3 Unit structure416352Fig. 3-1: Unit structure1: Discharge louver — “B- basic slats louver”2: Exchanger3: Fan module with suction nozzle <strong>and</strong> terminal block4: Fan with protective mesh5: Unit guard with plastic corners6: Flange for accessory attachment on the suction sideVK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


Einsatzgrenzen<strong>GEA</strong> <strong>GEA</strong> MultiMAXX ®Unit with “Industry” guardUnit with "Komfort” guardFig. 3-2Fig. 3-1Fig. 3-3VK-Nr. 2225481GB / 08.20056 Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Einsatzgrenzen<strong>GEA</strong>Wall mounted <strong>unit</strong> set with cooling <strong>and</strong>free condensate dischargeWall mounted <strong>unit</strong> set with pumpconveying condensateFig. 3-4 Fig. 3-5Below — ceiling <strong>unit</strong> set with anemostatgrille <strong>and</strong> free condensate dischargeBelow - ceiling <strong>unit</strong> set with secondarylouver <strong>and</strong> pump conveying condensateFig. 3-6 Fig. 3-7VK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


Safety <strong>and</strong> notice to the user <strong>GEA</strong> MultiMAXX ®4 Safety <strong>and</strong> notice to the userThe design of <strong>heating</strong>, ventilation <strong>and</strong> cooling <strong>unit</strong>s from <strong>GEA</strong>MULTIMAXX ® is based on current technologies, st<strong>and</strong>ards <strong>and</strong> establishedregulations, <strong>and</strong> are manufactured in compliance with EU <strong>and</strong> CZst<strong>and</strong>ards.<strong>GEA</strong> MULTIMAXX ® <strong>unit</strong>s are safe <strong>and</strong> of high quality <strong>and</strong> are acknowledgedfor their simple servicing <strong>and</strong> maintenance.However, each <strong>unit</strong> can be hazardous to the user or a third party, <strong>and</strong> the<strong>unit</strong> can be damaged or cause damage. Hence, it is necessary to followsafety regulations. The <strong>unit</strong> must be operated <strong>and</strong> maintained incompliance with the regulations <strong>and</strong> st<strong>and</strong>ards, otherwise it may lead topersonnel injuries, environmental damages <strong>and</strong> other damages.The following information will assist in preventing injuries, equipmentdamage <strong>and</strong> other damages <strong>and</strong> ensures a smooth, safe <strong>and</strong> reliableoperation of <strong>GEA</strong> MULTIMAXX ® <strong>unit</strong>s.This chapter deals with safety issues significant for servicing <strong>and</strong>maintaining the <strong>GEA</strong> MULTIMAXX ® <strong>unit</strong>s.4.1 Scope of maintaining <strong>and</strong> servicing instructionMaintaining <strong>and</strong> servicing instructions include essential information for thefollowing matters:- transport- assembly- installation- power connection- agent connection- commissioning- operators- maintenance, cleaning <strong>and</strong> disposal4.2 Symbols UsedIn the following instructions, a list of symbols is provided:- symbol for a new paragraph• symbol for an operation task symbol for the process outcomeVK-Nr. 2225481GB / 08.20058 Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Safety <strong>and</strong> notice to the userCaution!Supplementary information on economical use of the <strong>GEA</strong> MultiMAXX ®<strong>unit</strong>s is provided.RecyclingThis symbol helps to recycle packaging <strong>and</strong> expired components (sorted asper material).The following symbols used in this instruction list are safety guidelines.Accident hazard from voltage!This symbol is used for activities associated with hazards from voltage.Damages to personnelThis symbol defines notices, instructions <strong>and</strong> restrictions, which if ignored,may lead to personnel injuries, or cause damage to the building.Danger from suspended load!This symbol warns of injuries <strong>and</strong> damages from suspended load.Danger from high surface temperatures!This symbol defines notices, instructions <strong>and</strong> restrictions, which if ignoredmay lead to personnel injuries, or cause damage from high surfacetemperatures.Danger of injury <strong>and</strong> damage from sharp edges!This symbol defines notices, instructions <strong>and</strong> restrictions, which if ignoredmay lead to personnel injuries, or cause damage from sharp edges.Danger of injury <strong>and</strong> damage from high pressure!This symbol defines notices, instructions <strong>and</strong> restrictions, which if ignoredmay lead to personnel injuries, or cause damage from high pressure on<strong>heating</strong> <strong>and</strong> cooling agents.Danger of injury <strong>and</strong> damage from rotating parts!This symbol defines notices, instructions <strong>and</strong> restrictions, which if ignoredmay lead to personnel injuries, or cause damage by rotating parts of the<strong>unit</strong> or its accessories.Danger of injury <strong>and</strong> damage from <strong>heating</strong> agent high temperatures!This symbol defines notices, instructions <strong>and</strong> restrictions, which if ignoredmay lead to personnel injuries, or cause damage from <strong>heating</strong> agent hightemperatures.Danger of injury <strong>and</strong> damage from combustible materials!This symbol defines notices, instructions <strong>and</strong> restrictions, which if ignoredmay lead to personnel injuries, or cause damage from inflammablematerials.VK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


Safety <strong>and</strong> notice to the user <strong>GEA</strong> MultiMAXX ®Environmental damageThis symbol warns of environmental damages, <strong>and</strong> contains informationregarding current national regulations concerned with anti-pollutionmeasures.Damage to the <strong>unit</strong>This symbol defines notices, instructions <strong>and</strong> restrictions, which if ignoredmay lead to personnel injuries, or cause damage to the basic <strong>unit</strong>,accessories or control.Damages from electrostatic dischargeThis sign defines activities, which may damage the <strong>unit</strong> control electronicsby electrostatic discharge.4.3 Safety, responsibility, workDuring assembly, reconstruction or repairs respect the following notice:Danger from electric voltageThe <strong>unit</strong> should be switched on without voltage <strong>and</strong> secured from reenergizing, load tested, <strong>and</strong> earthed.Risk of damage by electrostatic dischargeWhen connecting or disconnecting the electric power supply to the <strong>GEA</strong>MultiMAXX ® <strong>unit</strong>, ensure the electrostatic discharge is dissipated beforetouching the wiring system or metal parts of the <strong>unit</strong>.Voltage fluctuation <strong>and</strong> irregularities must be within the limits stated onthe legend plate; otherwise irreversible damage may occur.4.4 Use specificationsHeating, ventilation <strong>and</strong> cooling <strong>unit</strong>s <strong>GEA</strong> MULTIMAXX ® are used inindustrial, logistic, retail <strong>and</strong> exhibition halls to heat, ventilate, cool or filterinner <strong>and</strong> outdoor air. It is possible to order accessories e.g. filters, mixingchambers, suction components, suspension apparatus <strong>and</strong> cross arms orcontrollers with appropriate sensors.To use this <strong>unit</strong> correctly, it is necessary to follow these service instructionsin addition to <strong>GEA</strong> MultiMAXX ® <strong>unit</strong> accessory instructionsImproper useOnly the above information can be considered as the correct use. If the <strong>unit</strong>is used incorrectly, the manufacturer <strong>and</strong> the supplier are not responsiblefor any kind of damage <strong>and</strong> the user bears the risk.VK-Nr. 2225481GB / 08.200510 Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Safety <strong>and</strong> notice to the userDamages to personnel<strong>GEA</strong> MULTIMAXX ® <strong>unit</strong>s, series HN must not be operated:- in an environment where there is danger of explosions- in an environment with high contents of dust <strong>and</strong> dampness- in an environment with strong electromagnetic fields- in an environment with an aggressive atmosphere that may damageplastic parts.4.5 Safety rules <strong>and</strong> st<strong>and</strong>ardsDuring assembly, electrical connection, operating, repairs <strong>and</strong> maintenanceof <strong>GEA</strong> MultiMAXX ® <strong>heating</strong> <strong>unit</strong>s, it is necessary to follow the st<strong>and</strong>ards<strong>and</strong> safety rules in addition to common technical procedures.4.6 Reconstruction <strong>and</strong> changesNo changes may be performed on the <strong>GEA</strong> MultiMAXX ® <strong>heating</strong> <strong>unit</strong> or itscomponents.Any changes to the <strong>unit</strong> or its components will negate the warranty <strong>and</strong>statement of compliance loss.4.7 SparesAll spare parts must be authentic. The manufacturer is not responsible forany damages <strong>and</strong> injuries caused by using non-original spare parts.4.8 Occupational skillsCAUTION!Any person working with <strong>GEA</strong> MultiMAXX ® <strong>unit</strong> must become acquaintedwith this instruction list before he/she starts work. Electrical work can onlybe done by personnel with the appropriate permit to perform electricalwork.VK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


Technical specifications <strong>GEA</strong> MultiMAXX ®5 Technical specifications5.1 Function specificationsThe <strong>GEA</strong> MULTIMAXX ® <strong>heating</strong> <strong>unit</strong> (possibly cooling) consists of a fan <strong>and</strong>an exchanger protected by a zinc coated (or alternatively varnished) steelplate metal case. The exchanger casing may be coated in the Ral colourrange if required. There are 11 types of louver fittings (see <strong>unit</strong> code)available for the discharge outlet. The rear side of the <strong>unit</strong> will beequipped with an axial fan in a protective enclosure - to prevent damage tothe fan <strong>and</strong> the risk of personnel injury.The rear side of the <strong>unit</strong> is designed for fitting additional parts for airfiltration <strong>and</strong> fresh air supply.Riveted bolt nuts, on the side of the fan casing are for securing the <strong>unit</strong> tothe wall or under the ceiling using cross arms or suspension apparatus.Units used for cooling are equipped with an integrated condensing trayprepared for free condensate discharge or with a pump for conveyingcondensate. Output specifications of the pump are stated on page 12. Dryrunning for less than 5 minutes does not influence the service life of thepump. If the extension of the condensate lead is required on the buildingsite follow these instructions:- The diameter of the condensate lead must comply with the pump tubediameter- Maximum condensate lift is 1.35 mCondensate outlet from condensing tray without pump has 16mm innerdiameter.For example, +26 °C ambient temperature, relative humidity 50%. Inlettemperature of cooling water should not be less than +5 °C.VK-Nr. 2225481GB / 08.200512 Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Technical specifications5.2 Unit size <strong>and</strong> heat exchanger outlets layout5.2.1 Unit function — <strong>heating</strong> (W), cooling — free condensation discharge (V) <strong>and</strong> cooling with condensatepump (P)Fig. 5-1: Unit size <strong>and</strong> heat exchanger outlets lay outTable with <strong>unit</strong> sizes for completion:W - <strong>heating</strong> with warm <strong>and</strong> hot water onlyV — cooling - free condensation dischargeP — cooling — pump conveying condensateFor exchanger finish:A - Cu/Al (max 130 °C, 1.6 Mpa)C — Cu/Cu (max. 130 °C, 1.6 Mpa)Size A B K DScrewHN11HN12HN13HN14HN21HN22HN23HN24HN31HN32HN33HN34HN41HN42HN43HN44HN51HN52HN53HN54642 457 63 1" 75738 553 69 1"866 681 76 5/4" 751026 841 83 5/4"1154 969 83 5/4" 75R7575VK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


Technical specifications <strong>GEA</strong> MultiMAXX ®5.2.2 Unit function - STable with <strong>unit</strong> sizes for completion:W —<strong>heating</strong> (PWW, PHW) onlyV — <strong>heating</strong> / cooling with free condensation dischargeP — <strong>heating</strong> / cooling with pump conveying condensateAnd for exchanger finishS — steel zinc - coated, elliptical piping (max 180°C, 1RR — 1,6 Mpa, 2RR — 1 Mpa)Size A B DScrewHN11 14642 457 1"HN12 75HN21 14738 553 1"HN22 75HN31 22 x 1866 681 5/4"HN32 28 x 1HN41 28 x 11026 841 5/4"HN42 35 x 1,5HN51 28 x 11154 969 5/4"HN52 42 x 1,5RFig. 5-2: Unit size <strong>and</strong> steam heat exchanger outlets lay outSize table for steam <strong>unit</strong>sS — only <strong>heating</strong>/ steamSizeAGHHN11 642 72 113HN21 738 70 115HN31 866 68 117HN41 1026 65 120HN51 1154 63 122VK-Nr. 2225481GB / 08.200514 Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Technical specificationsUnit weight <strong>and</strong> water volume of the exchangerSizeWeight withexchangerCu/AlkgWeight withexchangerCu/CukgWeight withexchangerFe/ZnkgVolume ofexchangerCu/Al aCu/CukgVolume ofexchangerFe/ZnkgHN11 21 24 46 1,0 3,8HN12 22 27 67 1,7 7,2HN13 24 29 - 2,5 -HN14 25 32 - 3,2 -HN21 29 29 63 1,3 5,2HN22 31 33 90 2,4 10,1HN23 33 37 - 3,4 -HN24 36 41 - 4,3 -HN31 38 41 88 1,8 7,4HN32 42 48 127 3,5 14,4HN33 45 54 - 5,3 -HN34 49 61 - 6,3 -HN41 54 63 123 3,0 10,7HN42 59 73 177 5,6 20,9HN43 64 82 - 8,4 -HN44 70 92 - 9,9 -HN51 81 87 179 3,9 13,8HN52 88 100 255 8,1 26,9HN53 95 113 - 11,1 -HN54 102 126 - 14,0 -5.3 RangesWeight is for basic <strong>unit</strong>s with plate louver <strong>and</strong> 3- speed motorCAUTION!All significant data concerning outputs, proportions, weight, heatexchanger outlets, acoustics data can be found in the catalogue “data <strong>and</strong>facts" about <strong>GEA</strong> MultiMAXX ® <strong>unit</strong>s.Heating <strong>unit</strong>Maximum ambient temperature -20°C to +40°COperating voltage3 x 400 V, or 1 x 230 V~ 50 HzProtection IP 54Electromotor inputsee legend on the fan motorMaximum operating temperature 130°CExchanger Cu/Al <strong>and</strong> Cu/CuMax pressure of <strong>heating</strong> <strong>unit</strong>1,6 MPaExchanger Fe/FeZnMaximum operating temperature 180°CMax pressure of <strong>heating</strong> <strong>unit</strong> 1RR -1,6 MPa, 2RR - 1,0MPaVK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Energy Connection8 Energy Connection8.1 Tube fittingCAUTION!It is necessary to position the incoming <strong>and</strong> out-going piping in such amanner to prevent any mechanical tension on the heat exchanger <strong>and</strong> toallow sufficient access to the <strong>unit</strong> for repairs <strong>and</strong> maintenance.Connecting piping: The piping <strong>and</strong> exchanger’s air-bleeding must becarried out at the installation site!Intake/backflow of <strong>heating</strong> agent: Adhere to the fittings' markings!DAMAGE TO THE DEVICE!It is essential to clasp the fittings with a wrench or pliers when fitting thepiping (see fig. 8-1)Fig. 8-1: Fitting the <strong>unit</strong> to the pipingVK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


Power supply connection <strong>GEA</strong> MultiMAXX ®9 Power supply connectionDANGER OF ELECTRICAL RELATED INJURIES!The power installation of <strong>GEA</strong> MultiMAXX ® <strong>heating</strong> <strong>unit</strong>s can only becarried out by specialised trained electricians who must adhere to theseinstructions <strong>and</strong> to valid regulations:- VDE regulations including safety rules- injury prevention regulations- assembly instructions9.1 Power wiring diagramsIt is necessary to connect the <strong>GEA</strong> MultiMAXX ® <strong>heating</strong> <strong>unit</strong>s in compliancewith valid power wiring diagrams only. The power wiring diagram islocated on the underside of the <strong>unit</strong>’s electrical box lid or is enclosed as aseparate sheet.DANGER OF ELECTRICAL RELATED INJURIES!The protective measures are not stated in the wiring diagrams. Whenconnecting, it is necessary to consider the valid local regulations <strong>and</strong> seekapproval from the local power utility company.Control/power electronicsMATRIX 2001, 3001MATRIX 2002, 3002, 4002MATRIX 2003, 3003, 4003MATRIX 4004Chart 9-1: SecuringSecuringB 10 AB 16 AB 16 AB 10 AVK-Nr. 2225481GB / 08.200524 Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Power supply connection9.2 Terminal box or electrical boxThe <strong>GEA</strong> MultiMAXX ® <strong>heating</strong> <strong>unit</strong> is provided (depending on thepurchased model) with either:- a plastic terminal box, or- a sheet metal electrical boxFig. 9-2: Terminal/electrical boxPlastic terminal boxThere are terminal blocks situated inside the plastic terminal box <strong>and</strong>(depending on the model) other power components.Sheet metal electrical boxThere are control/power electronics inside the sheet metal box(MATRIX 2001/3001, 2002/3002/4002, 2003/3003/4003, 4004).VK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


Power supply connection <strong>GEA</strong> MultiMAXX ®9.3 Connection with switching devices MC 3xx or with foreign regulation MC 3xxThe components are connected through a terminal block. The terminalblock is situated inside the plastic terminal box, which is fitted either on theright or left side of the base box.Wiring diagrams are on theunderside of the lid, orenclosed as a separatesheet.Wiring diagram is placedon the internal wall of thelid or enclosed as aseparate sheet.Fig. 9-3: Plastic terminal boxNOTE ABOUT THE SWITCHING DEVICES!Wiring diagrams are enclosed to respective switching devices or to the boxwith internal terminals.Use the following control cables for connecting purposes:- control conductors based on the machine type <strong>and</strong> local regulations- thermo-contact connection by a control cable of 0.5 mm2, screened with aplastic foil coated with aluminium, e.g. J-Y(ST)Y 2x2x0.8.NOTE ON FOREIGN REGULATION!The correct method for connecting the individual aggregates (fan, antifrostdevice etc.) can be found with the enclosed relevant wiring diagramfor each device.Before connecting, compare the (purchase) order key for power equipment<strong>and</strong> the wiring diagram to ensure that they are identical.With two-step motors it is necessary to carry out the connection with acounter-clockwise field.DANGER OF ELECTRICAL RELATED INJURIES!Before the connection box is opened, it is necessary to disconnect the<strong>heating</strong> <strong>unit</strong> from the power supply in all poles.Carry the connection out in strict compliance with the power wiringdiagram of the particular device.VK-Nr. 2225481GB / 08.200526 Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Power supply connection9.3.1 Terminal connection plan for three-step, three-phase motors with an external rotor- with thermo-contacts- with pole switching- ∆∆/YY/∆ winding diagram- without voltage switch-over!- operational voltage: see the serial type plateThree-step operation- with three-step switching device <strong>GEA</strong> (MC303/MC333)- connecting cable 9 + PE = 10 connecting str<strong>and</strong>s- screened lead: 2 connecting str<strong>and</strong>s TKOne-step operation- with one-step switching device <strong>GEA</strong> (MC301/MC331)- connecting cable 3 + PE = 4 connecting str<strong>and</strong>s- screened lead: 2 connecting str<strong>and</strong>s TKOne-step operation in stage IIIOne-step operation in stage IIOne-step operation in stage ITwo alternative phases enable the change of running direction.VK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


Power supply connection <strong>GEA</strong> MultiMAXX ®9.3.2 Terminal connection plan for two-step, three-phase motors with an external rotor- with thermo-contacts- slip connection- ∆/Y winding diagrams- without voltage switch-over!- operational voltage: see the serial type plateTwo-step operation- with two-step switching device <strong>GEA</strong> (MC302/MC332)- connecting cable 6 + PE = 7 connecting str<strong>and</strong>s- screened lead: 2 connecting str<strong>and</strong>s TKOne-step operation- with one-step switching device <strong>GEA</strong> (MC301/MC331)- connecting cable 3 + PE = 4 connecting str<strong>and</strong>s- screened lead: 2 connecting str<strong>and</strong>s TKOne-step operation in stage IIOne-step operation in stage ITwo alternative phases enable the change of running direction.VK-Nr. 2225481GB / 08.200528 Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Commissioning10 CommissioningACCIDENT HAZARD FROM ELECTRIC CURRENT!Before starting any work on the device, disconnect it from the voltagesupply.Make sure the device is in a suitable place for the power supply makingsure it is protected from re-energizing in the installation area.ACCIDENT HAZARD FROM SCALDING!Before starting the work on the air-conditioning <strong>unit</strong>s:Shut the <strong>heating</strong> agent input before any work on the valves, inlet <strong>and</strong>outlet pipes. Secure the lids from re-opening.Commence work when the <strong>heating</strong> agent is cool.ACCIDENT HAZARD FROM THE ROTATING PARTS!Accident hazard from the rotation fan blades! Before starting any work onthe device, disconnect it from the voltage supply.Make sure the device is in a suitable place for the power supply makingsure it is protected from re-energizing in the installation area.10.1 Safety test10.1.1 Commissioning prerequisite- The device, that uses a Multi Flair air-conditioning <strong>unit</strong>, is installed bothmechanically <strong>and</strong> electrically.- The device <strong>and</strong> the <strong>unit</strong> are without voltage supply.- All agent lines are rinsed <strong>and</strong> cleaned.- The device is filled with the agent (see “Purpose use” on the page10).NOTE!Before commissioning it is vital to ensure- the device exhaust (exchanger),- condensate reservoirs,- <strong>and</strong> filtration agent are clean.If necessary clean the parts <strong>and</strong> change the filtration agentVK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Maintenance11 Maintenance11.1 MaintenanceCAUTION!It is recommended to agree a service contract with a servicing company.DANGER OF ELECTRICAL RELATED INJURIES!Disconnect the <strong>heating</strong> <strong>unit</strong> from the power source <strong>and</strong> secure it fromunwanted re-connection!DANGER OF INJURIES RELATED TO ROTATING PARTS!Wait until the fan stops rotating!DANGER OF ACCIDENTS CAUSED BY HOT HEATING AGENT!Wait until the heat exchanger <strong>and</strong> the <strong>heating</strong> <strong>unit</strong> cool down.CAUTION!Heating <strong>unit</strong> maintenance consists of regular inspections <strong>and</strong> faultcorrections. It is recommended to inspect at least once a year (usuallybefore the <strong>heating</strong> season starts). The maintenance can only be carried outwhen the <strong>unit</strong> is disconnected from power supply <strong>and</strong> it can only becompleted by qualified staff.Part of the inspection must be a functional test of the fan <strong>and</strong> the heatexchanger. It is necessary to remove any contamination from the heatexchanger. The fan wheel must rotate freely <strong>and</strong> there must be a uniformdistance between the circumference <strong>and</strong> the incoming nozzle.Contaminated heat exchangers can be cleaned using compressed air orusing water <strong>and</strong> detergent. Use caution to avoid damaging the exchanger'sfins or grills when cleaning.DAMAGE TO THE DEVICE!The exchanger’s fins must not be damaged or distorted when cleaning.Otherwise, the <strong>heating</strong> capacity decreases. If the <strong>heating</strong> <strong>unit</strong> is notoperating in winter time, it is necessary to drain the water from theexchanger. Otherwise, there is a danger of freezing.When cleaning with a water jet make sure not to aim the jet at the motoror any electrical parts. It might be necessary to dismantle the fan motor.VK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


Correcting faults <strong>GEA</strong> MultiMAXX ®12 Correcting faults12.1 FaultsFault Possible cause Correcting the faultThe fan is not running Power supply missing or faulty Check power supply, fuse <strong>and</strong>The fan switch is on control fuse. Cable connection connectionThe indicating diodes not lit-up interruptedThe fan is not running Motor protection has responded Check the motor temperature. LetThe fan switch is oncool down if needed. Then switchIndicating diode STOP (fault) lit-upagain* (if problem reoccurs, findthe reason for over<strong>heating</strong>)Heating tool not <strong>heating</strong> Insufficient flow of <strong>heating</strong> agent Check the piping system <strong>and</strong> thepump <strong>and</strong> repair the fault.Income temperature too low Air-bleed the heat exchangerCheck the boiler <strong>and</strong> repairthe fault.The fan is operating but discharges Interrupted or limited air flow,insufficient aircontaminated filter/heat exchangerIncorrect direction of fan’s rotationClear obstructed air flow.Change direction of fan’s rotation* Re-start after the fault has been removed:The revolution switch first set to "0”, then re-set to required revolution gear.VK-Nr. 2225481GB / 08.200572 Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Disassembly <strong>and</strong> liquidation13 Dismantling <strong>and</strong> disposalDAMAGE TO THE ENVIRONMENT!Dismantling <strong>and</strong> disposing the <strong>GEA</strong> MultiMAXX ® <strong>heating</strong> <strong>unit</strong> can only becarried out by authorised experts!13.1 DismantlingThese instructions must be carried out when dismantling <strong>GEA</strong> MultiMAXX ®<strong>heating</strong> <strong>unit</strong>s:DANGER OF ELECTRICAL RELATED INJURIES!Before any dismantling or disposal, the <strong>unit</strong> must be disconnected from thepower supply <strong>and</strong> secured from re-connection. Ensure that the device iswithout voltage, ground it <strong>and</strong> short-connect the device <strong>and</strong> the adjacentconductive parts or partition it off. Otherwise serious injuries or fatalitiesmay result.DANGER OF HIGH PRESSURE RELATED INJURIES!Before any dismantling or disposal, the <strong>unit</strong>'s connection piping must beemptied until the pressure reaches the value of the ambient atmosphericpressure. Otherwise serious injuries may result.• Disconnect all fittings — at the same time ensure that no operation liquidssuch as oil, cooling agent or water-glycol mixture drain off.• Loosen the earth connection.DAMAGE TO HUMAN HEALTH!Secure the <strong>heating</strong> <strong>unit</strong> to avoid slipping. Fully comply with the transportinstructions.13.2 RecyclingRECYCLING!<strong>GEA</strong> MultiMAXX ® <strong>heating</strong> <strong>unit</strong>s' or its individual parts’ disposal must becarried out by a specialised, certified company. This company must ensurethat:• the components are separated according to the material type• the operational substances are separated according to theircharacteristicsDAMAGE TO THE ENVIRONMENT!All parts <strong>and</strong> operation substances (such as cooling agent, water-glycolmixture) must be disposed of in compliance with local laws <strong>and</strong> regulations.VK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance


Limits for cooling operation use <strong>GEA</strong> MultiMAXX ®Example:Room air + 26°C <strong>and</strong> 50% relative humidity. In this case, the incoming temperaturemust not exceed +5°CVK-Nr. 2225481GB / 08.200574 Instructions for service <strong>and</strong> maintenance


<strong>GEA</strong> MultiMAXX ®Declaration of conformityVK-Nr. 2225481GB / 08.2005Instructions for service <strong>and</strong> maintenance

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