Download Pocket Guide - Andrews Sykes

INDEX1. ANDREWS CLIMATE HIRE SERVICE 2DEHUMIDIFICATIONDEHUMIDIFICATIONVENTILATION2. PORTABLE HEATING 4● Electric Heaters 12● Direct Fired Gas Heaters 24● Direct Fired Oil Heaters 27● Indirect Fired Gas Heaters 29● Indirect Fired Oil Heaters 31● High Capacity Heaters 33● Accessories 373. BOILERS 44DEHUMIDIFICATIONVENTILATIONVENTILATIONDEHUMIDIFICATIONDEHUMIDIFICATIONVENTILATIONVENTILATION4. DEHUMIDIFICATION 54● Refrigerant Dehumidifiers 60● Desiccant Dehumidifiers 655. HUMIDIFICATION 70● Portable Humidifiers 716. AIR CONDITIONING AND REFRIGERATION 74● Exhaust Tube Units 82● PAC Units 90● Self Contained 96● Evaporative Coolers 977. CHILLERS 106● Air Handlers 1258. VENTILATION & EXTRACTOR FANS 133● Carpet Dryer 136● Cooling Fans 137● Ventilator/Extractor Fans 1409. DEFINITIONS 15010. NOTES 152

Call us Free 0800 211 611or click andrews-sykes.comPORTABLE HEATINGDirect firedA direct fired heater uses an electric fan to provide combustion air andalso the main air flow to give large volumes of heated air. Fuel is injectedinto a combustion chamber where it is ignited and burnt at a regulatedrate mixing with the main air stream from the fan.Generally referred to as 100% efficient (based on net calorific value ofthe fuel) because all the heat generated is discharged into the area to beheated. Andrews direct fired heaters are compact, robust, fully portableand are designed to provide safe controllable heat when and where itis needed. If necessary some can be thermostatically controlled. Directfired heaters have a wide variety of applications including factories,warehouses, sports halls, churches, loading bays and farm buildings.PORTABLE HEATING5

PORTABLE HEATINGIndirect firedAn indirect fired heater is a more sophisticated form of portable heaterwhich is used to provide large volumes of clean dry heat without anyproducts of combustion. Fuel is injected into a gas tight combustionchamber where it is ignited and burnt at a regulated rate.The products of combustion are exhausted via a simple flue arrangementout to the atmosphere. Electric fans provide combustion air and the mainair flow which collects heat indirectly from the heated chamber which isthen expelled into the area to be heated.Indirect heaters are ideal for areas where there is limited ventilation orwhere there is danger posed by combustible materials. The clean dryheat produced creates a safe, warm fume free environment. Andrewsindirect heaters are capable, with the addition of an outlet spigot andflexible ducting, of distributing heat to inaccessible locations.6

Call us Free 0800 211 611or click andrews-sykes.comPORTABLE HEATINGElectricAndrews electric heaters are the surest, fastest and easiest way ofheating, drying and thawing. All you need is an electrical socket. Thereare no exhaust gases, smells or vapours and they are therefore idealfor offices, shops, hospitals, construction projects, marquees, storerooms, workshops, ships, switching stations, garages and in temporaryaccommodation.Also for drying, in combination with a dehumidifier, of damp buildings,furniture and equipment (fire and water damage).PORTABLE HEATING7

PORTABLE HEATINGCalculations to determine the correct size of Andrews portable heaters touse are shown below.Determine the temperature rise required inside the space to be heatedin 0 C.Find the volume of the space in cubic metres i.e. L x W x H in metres.What sort of insulation does the building have?• Well insulated k = 1.2• Average k = 2.2• Badly insulated k = 3.0• Hardly any insulation k = 4.0Amount of heat required = Temperature rise 0 C x Volume in m 3 x K x 4 =Btu/hNB: divide Btu by 3412 to obtain kW for electric heaters.For fixed permanent installations a full heat loss calculation must bemade to take into account construction of the building, air changes etc.Your local Andrews depot will be pleased to help when required.8

Call us Free 0800 211 611or click andrews-sykes.comPORTABLE HEATINGFor large spaces, capacity can also easily be determined on the basis of aconversion table.Conversion Table temporary heating in buildings, at a moderateinsulation and an outside temperature of -5 0 C.65605550k-value = 2,2Outside = approx. -5 °COutsideby chromatography4540Heat required watt/h per m 3353025201520151210050010001500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500Upto 1000 m 3Use formula page. 8m 3For good insulation 15% of the rated capacity can be deducted. For poorinsulation 15% of the rated capacity should be added.PORTABLE HEATING9

PORTABLE HEATINGMarquee HeatingFor the calculation of the heating capacity of Marquees, depending on thesurface, and the time of the year, other standards apply, but the followingprovides a useful guide.• January approximately 580 Watt/m 2• February approximately 580 Watt/m 2• March approximately 460 Watt/m 2• April approximately 400 Watt/m 2• May until September approximately 350 Watt/m 2• October approximately 400 Watt/m 2• November approximately 460 Watt/m 2• December approximately 580 Watt/m 2Positioning Andrews heatersWhen positioning mobile heaters it is important that the fan has enoughspace to draw in air. The hot air flow coming out of the device should bedirected towards the area requiring heat. When using multiple heaters,the devices should be placed in such a way that the air streams do notoverlap. Indirect-fired heaters and electric heaters can also be set upoutside of the room. The heated air can then be transferred to the roomthrough an air hose.If the temperature of the outside air is considerably lower than thetemperature of the air inside, this will reduce the heat output of theequipment.Outside or inside installationHeaters with capacities of over 100 KW are, because of their large size,often placed outside. In that case, the heated air is transported inside via10

Call us Free 0800 211 611or click andrews-sykes.comPORTABLE HEATINGair hoses or ducts. A major disadvantage of a heater arranged outsideis that there is significantly more energy required, and thus fuel, thanwith a heater arranged inside. An inside heater heats on the basis ofrecirculation, and heats up already heated air. A heater that is locatedoutdoors, heats relatively cold outside air and then blows it inside. Itis therefore logical that a heater arranged outside needs a lot moretime to get a space at the desired temperature than an inside heater.Hence, the fuel costs in an outdoor installation is often 2 to 3 timeshigher, depending on the desired indoor temperature and the outdoortemperature. For that reason Andrews produces compact heaters thatcan get through most doors. Also, there is the possibility to provide anoutdoor heater with a hose, to recirculate already heated air. In this way,energy costs can be reduced.FuelAndrews heaters are powered by different fuels: diesel (so-called reddiesel), kerosene, natural gas and propane. Andrews is able to supply allfuel types and for large applications we can supply bulk tanks which areinstalled outside. Andrews has a large number of environmental tanksfor heating oil, double walled IBC tanks with a capacity of 1,000 to 3,000litres. For propane Andrews works with a number of leading gas supplierswho can deliver bulk propane tanks with a capacity of up to 5,000 litres.By making use of a bulk tank, heating is not only very easy, labour cost isalso considerably reduced.Energy consumption and costsElectric heaters are widely used, because of the ease of operation andthe production of clean, dry heat. Especially for small spaces, with acapacity of up to 500 m 3 , the electric heater is an excellent heat sourceat an attractive rate for hire. However, keep in mind that an electricheater uses more energy than other heat sources.PORTABLE HEATING11

ELECTRIC HEATER - DE 25Nominal heating dutyAir flow (max)Typical heated areaPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlPower consumption (max)2.8 kW 9,553 btu250 m 3 /h67.6 m 3230 or 110 V 1 ph 50 HzRun 12.2 or 25.4 ABS1363 230 V or BS4343 32 A 110 V50.6 dBA @ 1 metre11 kg320 x 260 x 360 mmDE25 Manual orDE25T Automatic (integral thermostat)2.8 kW/h12

Call us Free 0800 211 611or click andrews-sykes.comDE 65 - ELECTRIC HEATERHeating duty (max)Air flow (max)Typical heated areaPower supplyGenerator sizePlug typeNoise level (max)WeightDimensions (L x W x H)ControlPower consumption (max)13 kW 44,356 btu600 m 3 /h314 m 3415 V 3 ph +E 50 Hz Run 18.2 A (max)16.5 kVABS4343 3 ph 4 pin 32 A56.6 dBA @ 1 metre25 kg600 x 360 x 450 mmManual (in line automatic thermostat/contactor available)13 kW/hPORTABLE HEATING13

ELECTRIC HEATER - DE 95Heating duty (max)Air flow (max)Typical heated areaPower supplyGenerator sizePlug typeNoise level (max)WeightDimensions (L x W x H)Control20 kW 68,240 btu1,500 m 3 /h484 m 3415 V 3 ph + E 50 Hz Run 28 A (max)25 kVABS4343 32 A 3 ph 4 pin61 dBA @ 1 metre32 kg470 x 410 x 580 mmManual (in line auto stat/contactoravailable)14

Call us Free 0800 211 611or click andrews-sykes.comCT20 - ELECTRIC HEATERNominal heating dutyAir flow (max)Typical heated areaPower supplyNoise level (max)Plug typeWeightDimensions (L x W x H)Duct length (max)Duct sizeControlAverage power consumption2.8 kW 9,553 btu200 m 3 /h67 m 3230 V 1 ph 50 Hz Run 12 A44 dBA @ 1 metreUK 13A10.5 kg395 x 332 x 310 mm3 metres100 mmAutomatic integral thermostat2.8 kW/hPORTABLE HEATING15

ELECTRIC HEATER - CT40Nominal heating dutyAir flow (max)Typical heated areaPower supplyNoise level (max)Plug typeGeneratorWeightDimensions (L x W x H)Duct length (max)Duct sizeControlAverage power consumption10 kW 34,120 btu500 m 3 /h241 m 3415 V 3 ph + E 50 Hz Run 14 A57 dBA @ 1 metreBS4343 4 pin 16 A12.5 kVA19 kg670 x 320 x 310 mm3 metres120 mmAutomatic integral thermostat10 kW/h16

Call us Free 0800 211 611or click andrews-sykes.comCT80 - ELECTRIC HEATERNominal heating dutyAir flow (max)Typical heated areaPower supplyNoise level (max)Plug typeGeneratorWeightDimensions (L x W x H)Duct length (max)Duct sizeControlAverage power consumption20 kW 68,240 btu900 m 3 /h483 m 3415 V 3 ph + E 50 Hz Run 28 A62 dBA @ 1 metreBS4343 4 pin 32 A25 kVA28 kg980 x 515 x 480 mm5 metres150 mmAutomatic integral thermostat20 kW/hPORTABLE HEATING17

ELECTRIC HEATER - ESH20/40Nominal heating dutyAir flow (max)Typical heated areaPower supplyPlug typeGeneratorNoise level (max)WeightDimensions (L x W x H)Duct length (max)Duct sizeControlAverage power consumption40 kW 136,480 btu3,851 m 3 /h966 m 3415 V 3 ph + E 50 Hz Run 64 ABS4343 125 A 4 pin60 kVA98.6 dBA @ 1 metre93 kg950 x 720 x 790 mm15 metres450 mmManual (plug in thermostat available)40 kW/h18

Call us Free 0800 211 611or click andrews-sykes.comOIL FILLED RADIATOR - ELECTRIC HEATERNominal heating dutyTypical heated areaPower supplyWeightDimensions (L x W x H)ControlAverage power consumption2.5 kW 8,530 btu60.4 m 3230 V 1 ph 50 Hz Run 10.86 A15 kg170 x 500 x 670 mmAutomatic integral stat2.5 kW/hPORTABLE HEATING19

ELECTRIC HEATER - LOTUS CERAMICNominal heating dutyTypical heated areaPower supplyPlug typeWeightDimensions (L x W x H)ControlPower consumption (max)2.4 kW 8,188 btu57.9 m 3230 V 1 ph 50 Hz Run 10.4 ABS1363 230 V6 kg340 x 400 x 490 mmManual2.4 kW/h20

Call us Free 0800 211 611or click andrews-sykes.comQUARTZ - ELECTRIC HEATERNominal heating dutyTypical heated areaPower supplyPlug typeWeightDimensions (L x W x H)ControlAverage power consumption3.0 kW 10,236 btu72 m 3230 or 110 V 1 ph 50 HzRun 13 or 27.2 ABS1363 230 V or BS4343 32 A 110V20 kg505 x 477 x 906 mmManual3 kW/hPORTABLE HEATING21

ELECTRIC HEATER - CERAMICNominal heating dutyTypical heated areaPower supplyPlug typeWeightDimensions (L x W x H)ControlAverage power consumption3.0 kW 10,236 btu72 m 3230 or 110 V 1ph 50 HzRun 13 or 27.2 ABS1363 230 V or BS4343 32 A 110 V20 kg505 x 477 x 906 mmManual3 kW/h22

Call us Free 0800 211 611or click andrews-sykes.comACCESSORIES FOR ELECTRIC HEATERSAll of our electric heaters have plugs attached, three phasemodels may be supplied with 4 or 5 pin versions.Extension leads are available in a variety of lengths and voltages.Our DE range can be supplied with thermostats.The CT range can be provided with 5 metre ducting.Generator and distribution solutions are available for all applications.Andrews Heat for Hire can also supply telemetry equipment to allowremote and recorded monitoring of temperatures, particularly useful inheat load tests.PORTABLE HEATING23

DIRECT FIRED GAS HEATER - CATALYTICNominal heating duty (max)Typical heated areaWeightDimensions (L x W x H)ControlFuel typeFuel consumptionCylinderMax. operating pressure3.0 kW 10,236 btu72.5 m 314 kg340 x 420 x 700 mmManualLPG butane.219 kg/h15 kg.28 barAtmosphere analyser safety asstandard24

Call us Free 0800 211 611or click andrews-sykes.comG33DV - DIRECT FIRED GAS HEATERNominal heating dutyAir flowTypical heated areaPower supplyPlug typeNoise levelWeightDimensions (L x W x H)ControlFuel typeFuel consumptionMinimum cylinder(s)Max. operating pressure37.92 kW 129,383 btu1045 m 3 /h916 m 3230/110 V 1 ph 50 Hz Run .7/1.3 ABS1363 250 V BS4343 16A 110V79 dBA @ 1 metre13 kg610 x 325 x 515 mmManualLPG Propane only2.95 kg/h2 x 47 kg1.5 barPORTABLE HEATING25

DIRECT FIRED GAS HEATER - G80DVNominal heating dutyAir flowTypical heated areaPower supplyPlug typeNoise levelWeightDimensions (L x W x H)ControlFuel typeFuel consumptionMinimum cylinder(s)Max. operating pressure82.43 kW 281,251 btu2,190 m 3 /h1,930 m 3230/110 V 1 ph 50 Hz Run 0.65/1.3 ABS1363 250 V BS4343 16A 110V77 dBA @ 1 metre25 kg878 x 450 x 579mmManualLPG Propane only6.4 kg/h3 x 47 kg2 bar26

Call us Free 0800 211 611or click andrews-sykes.comMODEL 30 - DIRECT FIRED OIL HEATERNominal heating dutyAir flow (max)Typical heated areaPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlFuel typeFuel consumptionTank capacityHours run28 kW 95,536 btu500 m 3 /h675 m 3230/110 V 1 ph 50 Hz Run 1.6/3.35 ABS1363 230 V BS4343 16 A 110 V73 dBA @ 1 metre31 kg860 x 485 x 530 mmAutomatic External Controls AvailableGas Oil or Kerosene2.6 l/h30 litres11.3 hours per tankPORTABLE HEATING27

DIRECT FIRED OIL HEATER - MODEL 40Nominal heating dutyAir flowTypical heated areaPower supplyPlug typeNoise levelWeightDimensions (L x W x H)ControlFuel typeFuel consumptionTank capacityHours run43 kW 146,716 btu1,050 m 3 /h1,050 m 3230/110 V 1 ph 50 Hz Run 2/4.1 ABS1363 230v / BS4343 16A 110v79 dBA @ 1 metre37 kg930 x 560 x 615 mmAutomatic External Controls AvailableGas Oil or Kerosene4.09 l/h46 litres11.2 hours per tank28

Call us Free 0800 211 611or click andrews-sykes.comIDRG30 - INDIRECT FIRED GAS HEATERNominal heating dutyTypical heated areaPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlFuel typeFuel consumptionMinimum cylinders(s)Flue26 kW 88,712 btu628 m 3230/110 V 1 ph 50 Hz Run 1.2/2.5 ABS1363 230 V BS4343 16 A 110 V62.3 dBA @ 1 metre180 kg1,550 x 560 x 1,651 mmAutomatic external controls availableLPG propane only1.86 l/h1 x 47 kgOptionalPORTABLE HEATING29

INDIRECT FIRED GAS HEATER - IG60 DV 51 KWNominal heating dutyAir flowTypical heated areaPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)Max. duct lengthDuct diameter sizeControlFuel typeFuel consumptionMinimum cylinder(s)Optional flueOptional fresh air intake toburner51kW 174,012 btu5,000 m 3 /h1,232 m 3230/110 V 1 ph 50 Hz Run 1.75/3.7 ABS1363 230 V BS4343 16 A 110 V71 dBA @ 1 metre82 kg1,350 x 660 x 950 mm10 metres450 mmAutomatic external controls availableLPG propane3.64 kg per hour2 x 47 kg108 mm x 10 metres max150 mm x 10 metres max30

Call us Free 0800 211 611or click andrews-sykes.comID35 - INDIRECT FIRED OIL HEATERNormal heating dutyAir flow (max)Typical heated areaPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)Minimum flueMaximum duct lengthDuct diameter sizeControlFuel typeFuel consumptionTank capacityHours run (max, with flueadapter)24.8kW 84,617 btu1,450 m 3 /h600 m 3230 V 1ph 50Hz Run 1.5ABS1363 230 V75 dBA @ 1 metre58 kg (95 kg fuelled)1250 x 490 x 690 mm1 metre (150mm od)16 metres300mmExternal thermostat optionGas Oil4.08 l/h40 litres15 hour (single tank)PORTABLE HEATING31

INDIRECT FIRED OIL HEATER - ID60 DVNominal heating dutyAir flow (max)Typical heated areaPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)Minimum flueMaximum duct lengthDuct diameter sizeControlFuel typeFuel consumptionTank capacity60kW 204,720 btu3,060 m 3 /h1,500 m 3230/110 V 1 ph 50 Hz Run 6.2/15.1 ABS1363 230 V / BS4343 16 A 110 V73.3 dBA @ 1 metre220 kg1,500 x 775 x 1,220 mm600 x 127 mm30 metres300 mmAutomatic external controls availableGas Oil or Kerosene6.98 l/hSee fuel buggy details on page 3832

Call us Free 0800 211 611or click andrews-sykes.comAURORA FH111DV - HIGH CAPACITY HEATERNominal heating dutyAir flow (max)Typical heated areaPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)Duct length (max)Duct sizeControlFuel typeFuel consumptionFlue size110 kW 375,320 btu8,000 m 3 /h2,440 m 3230/110 V 1 ph 50 Hz Run 9.2/22 ABS4343 230 V 16 ABS4343 110 V 32 A79 dBA @ 1 metre380 kg2,230 x 780 x 1,340 mm40 metres450 mmManual, external controls available(24 V external control circuit)Gas Oil10.9 l/h1 mtr x 200 mmPORTABLE HEATING33

HIGH CAPACITY HEATER - AURORA FH185Nominal heating dutyAir flow (max)Typical heated areaPower supplyPlug typeGenerator sizeNoise level (max)WeightDimensions (L x W x H)Duct length (max)Duct sizeControlFuel typeFuel consumptionFlue size200 kW 682,000 btu15,000 m 3 /h4,204 m 3415 V 3 ph +E 50 Hz Run 10.4 ABS4343 4 pin 3 ph 32 A27 kVA82 dBA @ 1 metre428 kg2,710 x 910 x 1,520 mm40 metres600 mmManual, external controls available(24 V external control circuit)Gas Oil18 l/h1 mtr x 200 mm34

Call us Free 0800 211 611or click andrews-sykes.comAURORA FH2000S - HIGH CAPACITY HEATERNominal heating dutyAir flow (max)Typical heated areaPower supplyPlug typeGenerator sizeNoise level (max)WeightDimensions (L x W x H)Duct length (max)Duct sizeControlFuel typeFuel consumptionFlue (min)200 kW 682,000 btu12,000 m 3 /h4,108 m 3415 V 3 ph +E 50 Hz Run 7.5 ABS4343 3 ph 4 pin 32 A25 kVA76.5 dBA @ 1 metre545 kg2,400 x 800 x 1,370 mm40 metres300 mm x 4Manual, external controls available(24 V external control circuit)Gas Oil18.2 l/h1 mtr x 200 mmPORTABLE HEATING35

HIGH CAPACITY HEATER - AURORA FH4000Nominal heating duty (max)Air flow (max)Typical heated areaPower supplyPlug typeGenerator size (soft start)Noise level (max)WeightDimensions (L x W x H)Duct length (max)Duct sizeControlFuel typeFuel consumption (max)Flue (min)383 kW 1,306,796 btu24,000 m 3 /h8,457 m 3415 V 3 ph +E 50 Hz Run 20 ABS4343 4 pin 3 ph 32 A20 kVA76.5 dBA @ 1 metre1300 kg3,850 x 1,200 x 2,015 mm40 metres600 mm x 2Manual, external controls available(24 V external control circuit)Gas Oil38 l/h1 mtr x 250 mm36

Call us Free 0800 211 611or click andrews-sykes.comACCESSORIES FOR INDIRECT AND DIRECT FIRED HEATERSThe G 33 should preferably be connected to a 47 Kg propanecylinder.The G 80 must be connected to at least three 47 Kg cylinders. Whenusing too few bottles, or bottles that are too small, the heat output of theunit is adversely affected and this can result in the interruption of the gassupply to the unit.The Andrews Special Air Diffuser Boxes are available in 950mm or450mm sizes. They are double skinned and insulated to ensure lowsurface temperatures are maintained. They provide directable warm airvia directional loovers and give that elegant touch in high profile areassuch as marquees.For large gas uses and at low temperatures (below +5 °C) Andrewsrecommends connecting multiple cylinders with a cylinder pairing setand not placing the cylinders in areas that are too cold. If you wouldlike more information about the supply of gas, simply contact your localAndrews depot.Extension leads are available in a variety of lengths and voltages.Ducting is available in a variety of sizes and lengths.PORTABLE HEATING37

FUEL BUGGY - 9O LITRECapacityDimensions (L x W x H)Dry weightSuitability90 Litres600 x 500 x 1,000 mm57 kgDiesel only38

Call us Free 0800 211 611or click andrews-sykes.com1,000, 2,000, 2,800 AND 3,000 LITRE - FUEL TANKSCapacityDimensions (L x W x H)Dry weightCapacityDimensions (L x W x H)Dry weight1,000 Litres1,610 x 1,240 x 1,290 mm449 kg2,000 Litres2,225 x 1,250 x 1,540 mm672 kgCapacityDimensions (L x W x H)Dry weightCapacityDimensions (L x W x H)Dry weightMobility2,800 Litres2,585 x 1,200 x 1,525 mm900 kg3,000 Litres2,470 x 1,245 x 1,845 mm1,000 kgForkliftPORTABLE HEATING39

ACCESSORIES - DUCTINGDucting is available in 3m to 10m lengths in 8", 12", 18" and 24" diameter.Also available are Y pieces, T pieces and diffusers for specificapplications.Other non-standard sizes are also available, please contact your localdepot for more information.40

Call us Free 0800 211 611or click andrews-sykes.comTHERMOSTATS - ACCESSORIESThermostat T16Power supply volt/amps110 V or 230 V 1 phMax. current 5 AWeight with 10 metre cable1 kgDimensions W/L/H83 x 106 x 200 mmOperationManual set point - automaticThermostat T32Power supply volt/amps415V 3 ph + E 50 HzMax. 32 A/phPlug typeInput BS4343 3 ph 32 A 4 pin plugOutput BS4343 3 ph 32 A 4 pininletWeight with cable and plugs3 kgDimensions w/l/h107 x 105 x 200 mmPORTABLE HEATING41

ACCESSORIES - FUEL DISTRIBUTIONWith a wide range of electrical fuel delivery pumps, Andrews supplies thelatest in fuel transfer rental equipment for our heating and boiler range.Andrews can deliver to you fast from our nationwide depots and offer agenuine 24/7/365 days a year efficient and friendly service. If you haveexcessive fuel distribution runs or cannot use gravity fed fuel systems,Andrews experienced service team can help you decide which fuel pumpingsystem is best to overcome any situation.42

Call us Free 0800 211 611or click andrews-sykes.comPOWER DISTRIBUTION - ACCESSORIESWith a wide range of electrical distribution equipment, Andrews suppliesthe latest in power rental equipment to meet all your requirements.Andrews can deliver to you fast from our nationwide depots and offera genuine 24/7/365 days a year efficient and friendly service. Ourexperienced service team can help you decide which distribution systemis best for you to help with your power needs. Our distribution hire servicepromise is to be on site within four hours of your call with reliable andtested distribution units for all your needs.PORTABLE HEATING43

BOILERS3Delivering instant heat and hot water,wherever and whenever they're needed.Whether it's support during maintenance,refits and new build or an emergency followinga breakdown, our fully mobile boilers are themost advanced and efficient available. We alsoguarantee fast delivery and installation fromour depots nationwide: a genuine 24/7 service,365 days' a year.Our portable oil and gas fired boilers can becoupled to any existing heating and hot watersystem quickly. All LPHW (Low Pressure HotWater) boilers deliver large volumes of hot wateron demand: for indoor and outdoor locations, atany time of the year, for a range of commercial,industrial and leisure applications.The range extends from 22 kW to multi-megawattpackages, with every unit featuring highspecifications as standard.44

Call us Free 0800 211 611or click andrews-sykes.comBOILERSNatural gas and oil fired boilers: the UK's most modernand efficient boiler hire fleet.24/7 boiler hire, service and sales support UK-wide - 365days a year.We offer a 4 hour response.Environmentally friendly, energy efficient equipment.For planned support, disaster recovery and businesscontinuity.Installation, commissioning and servicing by qualifiedengineers.BOILERS45

BOILER APPLICATIONSTypical Air Handler SetupWarm AirCold AirBoilerAir Handling Unit(internal/external)The Andrews packaged boiler system provides a fast efficient solution to a wide range ofapplications required hot water.Andrews packaged boilers are housed in vandal proof sound and thermally insulated steelcontainers, finished in discrete silver grey, delivering 500 kW per unit from oil fired burners.The Andrews package boilers are equipped with lifting lugs fork-lift truck pockets andadjustable feet, for ease of on site locations, with fast coupling technology on all essentialconnections ensuring fast trouble free installation.The Andrews packaged boilers are used in conjunction with our comprehensive rangeof thermostatically controlled fan coils or air handling units, we supply flexible warm airdelivery solutions for many varied applications and locations, including offices, marquees,factories, public buildings etc.Schematic46

Call us Free 0800 211 611or click andrews-sykes.comBOILER APPLICATIONSProcessesThis system is often used where a product requires heating but due to the nature of theproduct it must not come into contact with the boiler circuit. To satisfy this requirement ifthe boiler is used in conjunction with a heat exchanger, a plate heat exchanger is preferredfor this type of application; this will keep separate the boiler flow and the process flow.Breakdown and recoveryPlant RoomThe Andrews packaged boiler may be used to maintain hot water and heating flowto existing systems, in the event of planned maintenance to existing plant or fast on sitetemporary installation during breakdown situations.BOILERS47

ELECTRIC BOILER - 22 KWNominal heating dutyPower supplyPlug typeNoise levelWeightDimensions (L x W x H)Fuel typeFuel consumption22 KW 75,064 btu415 V 3ph N+EBS4343 5 pin 32 Amps35 dBA @ 10 metres50 Kg600 x 550 x 1,100 mmElectric14.4/21.5 kW48

Call us Free 0800 211 611or click andrews-sykes.com36 KW - ELECTRIC BOILERNominal heating dutyPower supplyPlug typeNoise levelWeightDimensions (L x W x H)Fuel typeFuel consumption36 KW 123,084 btu415 V 3ph N+EBS4343 5 pin 63 Amps35 dBA @ 10 metres60 Kg600 x 560 x 1,100 mmElectric21.5/36 kWBOILERS49

PACKAGED BOILER - 100 KWNominal heating dutyPower supplyPlug typeNoise levelWeightDimensions (L x W x H)Fuel typeMax fuel consumption100 KW 341,200 btu240 V 1 ph N+E 50 Hz Run 10 ABS4343 16A45 dBA @ 10 metres980 kg2,200 x 1,550 x 2,400 mmGas Oil/Natural Gas12.5 l/h50

Call us Free 0800 211 611or click andrews-sykes.com250 KW - CONTAINERISED BOILERNominal heating dutyPower supplyPlug typeNoise levelWeightDimensions (L x W x H)Fuel typeMax fuel consumption250 KW 880,300 btu240 V 1 ph N+E 50 Hz Run 10 ABS4343 16A45 dBA @ 10 metres2,000 kg3,000 x 2,400 x 2,600 mmGas Oil/Natural Gas31 l/hBOILERS51

TRAILER MOUNTED BOILER - 375 KWNominal heating dutyPower supplyPlug typeNoise levelWeightDimensions (L x W x H)Fuel typeMax fuel consumption375 kW 1,279,500 btu415 V 3ph N+E 50 Hz Run 10ABS4343 5 pin 16 A45 dBA @ 10 metres2,550 kg5,000 x 2,200 x 2,700 mmGas Oil44 l/h52

Call us Free 0800 211 611or click andrews-sykes.com500 KW - CONTAINERISED BOILERNominal heating dutyPower supplyPlug typeNoise levelWeightDimensions (L x W x H)Fuel typeMax fuel consumption500 kW 1,706,000 btu415 V 3ph N+E 50 Hz Run 10ABS4343 5 pin 32 A45 dBA @ 10 metres2,500 kg3,000 x 2,400 x 2,600 mmGas Oil/Natural Gas60 l/hBOILERS53

DEHUMIDIFICATIONDEHUMIDIFICATION4Tackling high moisture problems withreliable refrigerant and desiccant dryers.If you're experiencing moisture problemsin a room or building, our powerful andreliable dehumidifiers can handle up to890 litres dehumidification capacity aday, delivering high levels of drying power.Typical applications include buildingand construction, offices, industry andmanufacturing, agriculture, warehousing andlogistics, and even domestic homes.Two types are available:Refrigerant - using an evaporator and condenser,these are the most commonly used in the Britishclimate, providing keep-dry areas up 13,600m 3 anddry out areas up to 6,400m 3 .Desiccant - using moisture-absorbing materials likesilica gel, these units are for when very low relativehumidity is needed, if work is being carried out atextremely low temperatures, a low dew point isessential, or for when the unit has to be ducted intothe area that needs drying.With free site surveys and friendly customer serviceon 0800 211 611, our specialists can help you decidewhich unit is best for you.54

Call us Free 0800 211 611or click andrews-sykes.comDEHUMIDIFICATIONDiagram of refrigerant principleDiagram of desiccant principlehumid airevaporatorcondensateprocess airdry air heaterhumid airregeneratedairwarm dry aircondenserThe operation of refrigerant dryersRefrigerant dryers cool air intake considerably by means of an evaporator sectionin a closed refrigeration system. As a result of this cooling, the relative humidityof the air over the evaporator raises to above 100% and water vapour condenses.This water (or condensation) is either drained into a reservoir or through a hoseto a drain, water container or a suitable outside location. The heat generated inthe cooling system condenser is used to warm the returned air to a temperatureabove that of the original intake. Each time the room air is passed through thedryer a quantity of moisture is removed from the air, therefore the humidity withinthe room is reduced. Refrigerant dryers are typically positioned within the roomto be dried and require little attention whilst in operation.The operation of desiccant dryersA desiccant dryer uses the hygroscopic properties of moisture-absorptionmaterials such as silica gel or lithium chloride. These materials are impregnatedwithin a rotating ceramic wheel, over which the humid air from the room is blown.The hygroscopic material absorbs a large percentage of the moisture from theair, therefore reducing the humidity in the area. The wheel is left very wet, it thencontinues to rotate slowly and the section which is saturated with moisture isheated with an electric heater, to vaporise the water. This warm and very humidair is then expelled outside through a length of flexible ducting. As well as beingable to place a desiccant unit within a room that is to be dried, desiccant dryersare often used in applications where it is not possible to position a dryer, such ashazardous areas or areas with limited access such as pipes and tanks.DEHUMIDIFICATION55

DEHUMIDIFICATIONDEHUMIDIFICATIONApplications of refrigerant and desiccant dryersRefrigerant dryers are most commonly used in the British climate. Desiccantdryers tend to be only used in the following situations:• a very low relative humidity is required (< 40%)• the work is being carried out at extremely low temperatures (< -10°C)• a low dew point is essential (for example tank-coating)• the unit has to be ducted into the area that needs dryingA refrigerant dryer uses about one third of the energy of a similar desiccantdryer, therefore the obvious advantage (especially on site) is that it requiresmuch less electricity so that running costs are usually reduced. A desiccantdryer is more efficient than a refrigerant dryer at about -5°C.Typical applications include• drying out buildings during construction/finishing• drying out after a fire or flood• storage of delicate products that are moisture sensitive• keeping electrical switch rooms dry• equipment drying rooms on construction sites, outdoor activity centres,fire stations etc• the drying out of pipework and tanks prior to repainting/coatingFire and water damageIn the case of fire and water damage immediate, fast and professional actionis essential to avoid further damage. Andrews hire dryers, heaters and fansto reduce relative humidity and to ventilate polluted air. Corrosion (HCL)can be stopped; buildings, furniture and inventory can be saved and thusrestoration costs can be minimized.56

Call us Free 0800 211 611or click andrews-sykes.comDEHUMIDIFICATIONBuilding dryingThe most important reason for using building dryers is to minimize the totalbuilding time by creating the perfect conditions for painting, plastering,finishing floors and ceilings, wall-paper etc. Andrews has the right dryeravailable whether you need a building dryer for a house, a cellar, a safestorage or complete utility.Humidity control during storageIncreasingly, higher demands are made upon the relative humiditystandards for all storage including agricultural products, electroniccomponents, sheet steel, food, paper products, powders, objects d'art,antiques etc. The list is almost endless.Typical relative humidity conditionsMaterial % R.H. Material % R.HNuts 60-65Chocolate 40-50Onions 65-70Furniture 50-55Flower bulbs 70-75Steel 55Electronics 55Switch Rooms 60Paper 55-65Artwork 55To avoid mould the relative humidity has to be maintained below 70%R.H.Dehumidification with an Andrews refrigerant building dryer is up to 75%cheaper than using heating in combination with ventilation to dry a room.DEHUMIDIFICATION57

DEHUMIDIFICATIONDEHUMIDIFICATIONCalculation and selection of the correct dehumidifier or dryerTo correctly decide upon the most efficient way of drying an area manyfactors need to be considered: temperature, materials, relative humidityand drying time. This calculation is best left to the experts at Andrews who,armed with a hygrometer and psychrometric chart, will give you the verybest advice - free of charge - on how to use our units.Basic 'rule of thumb' sizing Refrigerant unitsThese are usually sized taking a typical RH of 75% at an air temperature of20°C, the performance of the unit will vary greatly as the temperature andRH rises or falls. Typically the units are shown to be able to keep an area incubic metres dry, based on the above conditions. The dry out area is usuallyaround 50% of this as the area is assumed to be already wet and thismoisture needs to be removed.Desiccant unitsIn general a desiccant unit is suitable to dehumidify a room with a volumetwo times bigger than the dry air volume produced by the dryer. A desiccantdryer with a dry air volume of 1,600 m 3 /hr is suitable to dry a room ofapproximately 3,200 m 3 .Installation of a dehumidifierBefore the installation of a dehumidifier, the room to be dried has to besealed as well as possible. This means the room's windows and doors arekept closed and gaps and ventilation holes are covered so that humid air isprevented from flowing inside from the outside. Plastic covers are suitablefor sealing a room - it is not necessary to use heat insulation!If one dryer is to be used it should be positioned in the middle of the room.For larger rooms, where more dryers are used, the total room should bedivided into as many equal sections as dryers to be used. A dryer is installedin the middle of each section to ensure perfect air circulation. The dryer has58

Call us Free 0800 211 611or click andrews-sykes.comDEHUMIDIFICATIONto be positioned so it can blow dry air without obstruction, and its air inletgrill remains clear. If dryers are used in conjunction with heaters (electricalor indirect fired) make sure hot air is not blown in the direction of the dryers.The condensation from the dryer can be caught in a container or a hose canbe used to drain the condensation to outside or to a drain. In this case thewater has to be piped off vertically otherwise leakages will occur. LargerAndrews dryers remove condensation by means of a condensation pump - anew development in dehumidification technology. This pump allows thecondensation to be easily pumped upwards through a window or down toan outside drain. Due to this new development it is no longer necessary toempty and to check the waterbuckets, for example during the weekendsand holidays.Faster dryingFor a faster drying process, dryers can be installed together with Andrewsventilation fans. The increased air circulation results in faster moistureevaporation, minimising the danger of shrink damage from drying out toofast. In some cases the addition of indirect or electrical heaters may berecommended.DEHUMIDIFICATION59

DEHUMIDIFICATIONREFRIGERANT DEHUMIDIFIER - FD15 DVNominal extraction duty at75% @ 20°CAir flow (max)Keep dry area (typical)Dry out area (typical)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumption16 litres/24hr225 m 3 /h382.5 m 3187 m 3230/110 V 1 ph 50 Hz Run 3.8/7.6 ABS1363 230 V BS4343 16 A 110 V53 dBA @ 1 metre33 kg355 x 355 x 570 mmAdjustable humidistat430 W/h60

Call us Free 0800 211 611or click andrews-sykes.comFD30 DV - REFRIGERANT DEHUMIDIFIERNominal extraction duty at75% @ 20°CAir flow (max)Keep dry area (typical)Dry out area (typical)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumption34 litres/24hr380 m 3 /h646 m 3317 m 3230/110 V 1 ph 50 Hz Run 4.1/9 ABS1363 230 V BS4343 16 A 110 V57 dBA @ 3 metres37 kg363 x 361 x 805 mmManual (humidistat option)730 W/hDEHUMIDIFICATION61

DEHUMIDIFICATIONREFRIGERANT DEHUMIDIFIER - HD500 DVNominal extraction duty at75% @ 20°CAir flow (max)Keep dry area (typical)Dry out area (typical)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumption34 litres/24hr380 m 3 /h850 m 3400 m 3230/110 V 1 ph 50 Hz Run 4.1/9 ABS1363 230 V BS4343 16 A 110 V57 dBA @ 3 metres68 kg940 x 630 x 1,110 mmManual (humidistat option)650 W/h62

Call us Free 0800 211 611or click andrews-sykes.comDH150 - REFRIGERANT DEHUMIDIFIERNominal extraction duty at75% @ 20°CAir flow (max)Keep dry area (typical)Dry out area (typical)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumption150 litres/24hr2,200 m 3 /h3,200 m 31,500 m 3415 V 3 ph 50 Hz Run 8 AHard wire58 dBA @ 1 metre130 kg660 x 660 x 1,313 mmHumidistat option2.7 kW/hDEHUMIDIFICATION63

DEHUMIDIFICATIONREFRIGERANT DEHUMIDIFIER - DH 600Nominal extraction duty at75% @ 20°CAir flow (max)Keep dry area (typical)Dry out area (typical)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumption600 litres/24hr9,000 m 3 /h13,600 m 36,400 m 3415 V 3 ph N+E 50 Hz Run 18 AHard wire 563 dBA @ 1 metre497 kg1,730 x 1,250 x 1,600 mmHumidistat option12 kW/h64

Call us Free 0800 211 611or click andrews-sykes.comDS40 - DESICCANT DEHUMIDIFIERNominal extraction duty at75% @ 20°CAir flow (max)Keep dry area (typical)Power supplyPlug typeGenerator sizeDuct lengthNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumption33 litres/24hr160 m 3 /h380 m110 V 1 ph 50 Hz Run 11.5 ABS4343 110 V 32 A3 kVA5 metres66 dBA @ 1 metre30 kg450 x 455 x 470 mmHumidistat Option1.28 kW/hDEHUMIDIFICATION65

DEHUMIDIFICATIONDESICCANT DEHUMIDIFIER - KT1600Nominal extraction duty at75% @ 20°CAir flow (max)Power supplyPlug typeGenerator sizeDuct length (max)Noise level (max)WeightDimensions (L x W x H)ControlAverage power consumption258 litres/24hr1,600 m 3 /h415 V 3 ph N+E 50 Hz Run 24 ABS4343 5 pin 32 A25 kVA40 metres82.75 dBA @ 1 metre285 kg666 x 1,670 x 1,400 mmHumidistat option17 kW/h66

Call us Free 0800 211 611or click andrews-sykes.comKT2000 - DESICCANT DEHUMIDIFIERNominal extraction duty at75% @ 20°CAir flow (max)Power supplyPlug typeGenerator sizeDuct length (max)Noise level (max)WeightDimensions (L x W x H)ControlAverage power consumption300 litres/24hr2,000 m 3 /h415 V 3 ph N+E 50 Hz Run 28.5 ABS4343 5 pin 32 A26 kVA40 metres82.75 dBA @ 1 metre225 kg1,290 x 890 x 1,050 mmHumidistat option20 kW/hDEHUMIDIFICATION67

DEHUMIDIFICATIONDESICCANT DEHUMIDIFIER - KT6000Nominal extraction duty at60% @ 20°CAir flow (max)Power supplyPlug typeGenerator sizeDuct length (max)Noise level (max)WeightDimensions (L x W x H)ControlAverage power consumption888 litres/24hr5,500 m 3 /h415 V 3 ph +E 50 Hz Run 72 AHard wired75 kVA50 metres94 dBA @ 3 metre600 kg1,600 x 1,000 x 1,800 mmHumidistat option50 kW/h68

Call us Free 0800 211 611or click andrews-sykes.comACCESSORIES FOR DEHUMIDIFICATIONExtension leads are available in a variety of lengths and voltages.Ducting is available in various lengths and diameters.Humidity Thermostats (Humidistats).Condensate tubing.Condensate Collection Containers.110V Transformers.Andrews Dehumidification can also supply telemetry equipmentto allow remote and recorded monitoring of humidity andtemperature.DEHUMIDIFICATION69

DEHUMIDIFICATIONHUMIDIFICATION5Helping you deal with low humidity inmodern environments.In air conditioned buildings, especially those withlots of electrical and electronic equipment, lowhumidity and the problems it creates can be a bigissue. Our humidifiers mean you can wave goodbyeto sore throats, dry eyes and static electric shocks.These compact and reliable units add moistureto room air and so increase humidity. Simple tooperate and fully portable from room to room,simply add water and plug in to a standard powersocket. They are ideal for locations includingoffices, IT and communications rooms, printingprocesses, industrial processes and manufacturing,pharmaceuticals, hospitals, museums and artgalleries.With free site surveys and friendly customer serviceon 0800 211 611, our specialists can help you decidewhich unit is best for you.l Price competitivel Environmentally friendly, energy efficient unitsl Discounts for continuous hire periods andspecial packages for everything from a singleroom to multiple sites70

Call us Free 0800 211 611or click andrews-sykes.comCENTURY SERIES 4 - PORTABLE HUMIDIFIERDuty Rated 20% rh. 25°CAir flow (max)Power supplyNoise levelWeightDimensions (L x W x H)Reservoir capacityAverage power consumption1.8 l/h500 m 3 /h230 V 1 ph 50 Hz Run 0.65 A57 dBA @ 3 metres11 kg345 x 550 x 610 mm19.5 litres150 W/hHUMIDIFICATION71

DEHUMIDIFICATIONPORTABLE HUMIDIFIER - CENTURYDuty Rated 20% rh. 25°CAir flow (max)Power supplyNoise levelWeightDimensions (L x W x H)Reservoir capacityAverage power consumption2.4 l/h500 m 3 /h230 V 1 ph 50 Hz Run 2.2 A59 dBA @ 3 metres13 kg305 x 610 x 660 mm26 litres500 W/h72

Call us Free 0800 211 611or click andrews-sykes.comCENTURY SERIES 10 - PORTABLE HUMIDIFIERDuty Rated 20% rh. 25°CAir flow (max)Power supplyNoise levelWeightDimensions (L x W x H)Reservoir capacityAverage power consumption100 ltr/24hr4.2 l/h230 V 1 ph 50 Hz Run 0.9 A-24 kg755 x 365 x 620 mm50 litres150 W/hHUMIDIFICATION73

AIR CONDITIONING AND REFRIGERATION6When the temperature rises, it reduces ourwork performance and equipment failurescan occur. To avoid these problems, Andrewsoffers a wide range of temporary, portableair conditioners based on air and watercooled versions and with or without externalair-cooled heat exchangers as well as a widerange of chillers.The basic principle of air conditioningAn air conditioner is a closed refrigerant system,comprising of an evaporator, a compressor, acondenser and an expansion valve (or capillary),which are all connected to each other withrefrigerant piping. Refrigerant gas is circulatedwithin the system in the direction shown in thebelow drawing.74

Call us Free 0800 211 611or click andrews-sykes.comAIR CONDITIONING AND REFRIGERATIONThe indoor unit, which is usually installed in the room to be cooled,contains the process where the refrigerant evaporates within the coldelement (evaporator). This evaporation is caused because the refrigeranthas a very low boiling point of -40.8ºC at atmospheric pressure.To enable the evaporation, a rise in temperature is necessary. This riseis supplied by the air of the room which is to be cooled and in whichthe evaporator is situated. As air is passed over the evaporator the airtemperature will drop and therefore enable the room air temperature tobe reduced.The compressor draws the vapour refrigerant and reduces the pressurein the evaporator. Because of this pressure reduction the refrigerantevaporates. The vapour which is drawn by the compressor is thencompressed. The pressure and temperature of the gas rises as it iscompressed into the condenser, where the warm gas is cooled downto the condensation temperature of the refrigerant. Subsequently thevapour returns back to liquid again. In the condenser the process isalmost directly opposite to the evaporator. The condenser requirescooling otherwise the temperature and gas pressure will rise too high.For this cooling process either water or air can be used.The vapour which has now returned to liquid again is now passed throughthe expansion valve (or capillary) to the evaporator. Because of thenarrowing of the pipe work the pressure decreases and the refrigerantevaporates once more. To enable this evaporation the warm air is neededand so the circuit is closed.AIR CONDITIONING75

AIR CONDITIONING AND REFRIGERATIONThe operation of portable air conditioners: Andrews offer 3principle types of portable air conditioners. These are:1. Exhaust tube units: boththe evaporator and condenserare positioned within the roomunit. The majority of the air thatis passed through the unit isdirected over the evaporator andreturns back into the room, ascooled air. A smaller volume ofair is passed across the condenser to cool the refrigerant gas. This airneeds to be removed from the room as it becomes hot. An exhaust tubeis used to remove this hot air via an opening in the room (usually througha window). In some cases the exhaust tube may be positioned into a falseceiling void, advice should be sought before using this system.2. Split type units (refrigerant):These are models similar to the PAC14,such units are supplied in 2 parts, aroom unit and a condenser. The roomunit placed within the area to be cooledcomprises of an evaporator and acompressor. The room air enters the unitand once passed across the evaporator isreturned into the room as cooled air. Theexternal unit which is connected to theroom unit by a flexible pipe, contains the condenser which needs to cooledby ambient air, therefore the external unit needs to be positioned outsideof the room to be cooled. Typically the condenser is hung from a window.76

Call us Free 0800 211 611or click andrews-sykes.comAIR CONDITIONING AND REFRIGERATION3. Split type units (water)These units are the PAC15, PAC22and Zephyr, such units are alsosupplied in 2 parts, a room unit anda heat exchanger. The principle inoperation is very similar to that ofthe refrigerant units. The majordifference is that the condenseris placed within the room unit andcooled by water. The water is then circulated to the external unit (heatexchanger) via flexible pipes before returning to the room unit. Thesystem is totally sealed and requires no further water once the unit is inplace. The main advantage of this system is that the connection pipescan be extended - up to 30 metres - allowing the heat exchanger to bepositioned away from the room unit.AIR CONDITIONING77

AIR CONDITIONING AND REFRIGERATIONFor the installation of an air conditioner, a number of issues areimportant:1. Ensure that an air-cooled condenser gets enough fresh air(install outside or indoors with sufficient ventilation).2. Let the evaporator or the indoor unit blow out the cool air freely(ie not against cabinets, beams, fluorescent lights), to ensure a draftfreeair distribution.3. Make sure the evaporator is level, otherwise the drip tray mayoverflow.4. Make sure the condensate can be safely discharged.5. Make sure the distance between the indoor and outdoor unit is nottoo great (up to 30 meters).6. Provide adequate voltage.7. Provide adequate water pressure and volume for the water-cooledtypes.Applications for temporary air conditioning equipment• Offices• Events & Exhibitions• Temporary accommodation (eg. portable buildings)• Shops and Restaurant• Storage of heat-sensitive products (eg. chocolate)• Computer server rooms• Spot Cooling• Schools• Telecommunication rooms• Laboratories• Hospitals• Production Facilities• Process control rooms• Hotel and conference centres• Printing and reprographics• Any application where a fixed unit has broken down or needs to be shut downfor maintenance.78

Call us Free 0800 211 611or click andrews-sykes.comPORTABLE EVAPORATIVE AIR COOLERSThe UK leader in portable evaporative coolers for hireThere are many applications where it is impossible orimpractical to use portable air conditioners. In such cases analternative may be the use of an evaporative air cooler.Often used where access to an external source is unavailable,the Andrews range of stand alone evaporative air coolers arean ideal solution to uncomfortable conditions.35º22ºTypical low ambient humidity performanceThe evaporative concept is designed to cool fresh air throughthe process of natural evaporation by drawing air across a wetfilter and providing a refreshing air flow. As the air passes thewet filter, a drop in temperature will be experienced, althoughthe overall room temperature will not be reduced. The unit willprovide a localised comfort cooling zone.Applications for the smallerevaporative coolers• Offices• Shops• Restaurants• Schools• KitchensApplications for the Eventairevaporative coolers• Sports halls andgymnasiums• Large manufacturing areas• Outdoor events andmarquees• Large retails outlets• Night clubsAIR CONDITIONING79

CALCULATING AND APPLICATIONSCalculating the cooling capacity required and choosing the type of airconditioningThe heat load for each room can vary considerably. This depends on the numberof lights, the number of people, glass area facing the sun, and the presence of computersand other equipment. It is therefore essential to determine the capacity correctly.Rule of thumb for an approximation of air conditioning load are:Normal Modern Offices: 46 W per m 3Portable Buildings: 57 W per m 3Tents/Marquees: 95 W per m 3NB: Multiply kW by 3412 to obtain BtuIn addition to the type and size of the area to be cooled consideration must be given toany appliances that generate heat in the area. Such appliances are listed below alongwith the approximate heat emission that they generate.Personal ComputerLaser PrinterPhotocopier StandbyPhotocopier In UseFax MachineCoffee MachineTV/ Video Screen150 W500 W200 W1000 W500 W800 W50 WObviously, the Andrews specialists will be glad to work out an accurate cooling calculationfor you.80

Call us Free 0800 211 611or click andrews-sykes.comSELECTION AND INSTALLATIONSelection and installation of your portable air conditionerTo select which type of temporary air conditioner you must first consider the capacity ofthe unit and the possible alternatives to remove the condenser heat.A room without outside walls or windows often means that a standard PAC (split) unitcannot be used. If an exhaust tube cannot be vented into a ceiling void or out of theroom the only alternative may be a water-cooled PAC unit. Again, if it is not possibleto position a heat exchanger within 30m of the room unit other alternatives such as achillier, evaporative coolers or cooling fans may need to be considered.Before you select your Andrews portable air conditioner we suggest the following issuesshould be considered.• The indoor unit (evaporator) needs to be positioned within 1.5 metres of a13 amp 230 volt socket and located in a manner to avoid any obstruction to theairflow.• If you are to use a PAC type unit the heat exchanger (condenser) will need to bepositioned outside of the building or in a very well ventilated area that can withstandthe heat transferred from the room being cooled. Condensation is discharged fromthe room unit to the heat exchanger where it is allowed to drain to the outside ofthe building. If the heat exchanger is placed within the building a separate means ofdischarging the condensation needs to be provided.• When using a PAC unit it is always advisable to position the heat exchanger awayfrom direct sunlight or any position where its operation is likely to cause disruption.The heat exchanger can only be positioned within the distance specified by PAC linelength. Always aim to keep the PAC line length to a minimum.• Always ensure that the electrical supply to the unit is adequate and that the operationof the unit will not cause any problems to other sensitive electronic equipment.AIR CONDITIONING81

EXHAUST TUBE UNIT - ET9Nominal cooling dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Exhaust ductControlAverage power consumption2.2 kW 7,500 btu320 m 3 /h53 m 3230 V 1 ph 50 Hz Run 4.5 A53 dBA @ 2 metres35 kg367 x 450 x 870 mm1 metre x 127 mm diameterAutomatic thermostat832 W/h82

Call us Free 0800 211 611or click andrews-sykes.comPOLAR BREEZE - EXHAUST TUBE UNITNominal cooling dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Exhaust ductControlAverage power consumption2.6 kW 9,000 btu300 m 3 /h63.7 m 3230 V 1 ph 50 Hz Run 7 A55 dBA @ 1 metre35 kg480 x 380 x 830 mm2 metres x 127 mm diameterRemote control with automaticthermostat1.61 kW/hAIR CONDITIONING83

EXHAUST TUBE UNIT - POLAR WINDNominal cooling dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Exhaust ductControlAverage power consumption4.1 kW 14,000 btu360 m 3 /h99 m 3230 V 1 ph 50 Hz Run 9 A56 dBA @ 1 metre45 kg400 x 480 x 840 mm2 metres x 127 mm diameterRemote control with automaticthermostat1.8 kW/h84

Call us Free 0800 211 611or click andrews-sykes.comMISTRAL - EXHAUST TUBE UNITNominal cooling dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Exhaust ductControlAverage power consumption4.4 kW 15,000 btu550 m 3 /h95 m 3230 V 1 ph 50 Hz Run 11 A54 dBA @ 1 metre50 kg400 x 430 x 1,000 mm1.7 metres x 150 mm diameterAutomatic start2.41 kW/hThis unit is a dual unit and will also deliver 4.40 kW ofheat, if required.AIR CONDITIONING85

EXHAUST TUBE UNIT - ET15Nominal cooling dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Exhaust ductOptional cold air ductControlAverage power consumption4.5 kW 15,000 btu777 m 3 /h97 m 3230 V 1 ph 50 Hz Run 7.6 A59 dBA @ 3 metres108 kg695 x 440 x 1,031 mm2.5 metres x 140 mm diameter1.5 metres x 150 mm diameterAutomatic thermostat1.86 kW/h86

Call us Free 0800 211 611or click andrews-sykes.comZEPHYR ET - EXHAUST TUBE UNITNominal cooling dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Exhaust ductOptional cold air ductControlAverage power consumption4.5 kW 15,000 btu777 m 3 /h97 m 3230 V 1 ph 50 Hz Run 7.6 A59 dBA @ 3 metres110 kg485 x 746 x 1,018 mm2.5 metres x 140 mm diameter1.5 metres x 150 mm diameterAutomatic thermostat1.75 kW/hAIR CONDITIONING87

EXHAUST TUBE UNIT - ET21Nominal cooling dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Exhaust ductControlAverage power consumption6.15 kW 21,000 btu780 m 3 /h133 m 3230 V 1 ph 50 Hz Run 11 A68 dBA @ 1 metre86 kg590 x 490 x 1,300 mm9 metresHigh Pressure Switch - 3min. delaytimer. Thermostat and relief valve forcompressor2.41 kW/h88

Call us Free 0800 211 611or click andrews-sykes.comET25 - EXHAUST TUBE UNITNominal cooling dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Exhaust ductControlAverage power consumption7.33 kW 25,000 btu960 m 3 /h159 m 3230 V 1 ph 50 Hz Run 13 A69 dBA @ 1 metre90 kg590 x 490 x 1,300 mm12 metresHigh Pressure Switch - 3min. delaytimer. Thermostat and relief valve forcompressor2.6 kW/hAIR CONDITIONING89

PAC UNIT - PAC14 SERIES 4 QCNominal cooling dutyAir flow (Max)Typical cooled areaPower supplyIndoor noise level (max)Outdoor noise level (max)Indoor weightOutdoor weightIndoor dimensions (L x W x H)Outdoor dimensions (L x W x H)PAC line lengthControlAverage power consumption3.9 kW 13,300 btu416 m 3 /h94 m 3230 V 1 ph 50 Hz Run 6.2 A47 dBA @ 2 metres41 dBA @ 4 metres44 kg15 kg310 x 470 x 800 mm250 x 490 x 525 mm2.1 metres(Optional extension 2 or 4 metres)Automatic thermostat1.35 kW/h90

Call us Free 0800 211 611or click andrews-sykes.comPAC15 - PAC UNITNominal cooling dutyAir flow (max)Typical cooled areaPower supplyIndoor noise level (max)Outdoor noise level (max)Indoor weightOutdoor weightIndoor dimensions (L x W x H)Outdoor dimensions (L x W x H)PAC line lengthControlAverage power consumption*Capable of operating downto 10˚C4.5 kW 15,400 btu715 m 3 /h109 m 3230 V 1 ph 50 Hz Run 7.3 A61 dBA @ 3 metres62 dBA @ 3 metres105 kg20 kg330 x 695 x 954 mm285 x 565 x 520 mm5 metres (max 30 metres)Automatic thermostat*1.8 kW/hAIR CONDITIONING91

PAC UNIT - ZEPHYR PACNominal cooling dutyAir flow (max)Typical cooled areaPower supplyIndoor noise level (max)Outdoor noise level (max)Indoor weightOutdoor weightIndoor dimensions (L x W x H)Outdoor dimensions (L x W x H)PAC line lengthControlAverage power consumption*Capable of operating downto 10˚C4.5 kW 15,400 btu715 m 3 /h109 m 3230 V 1 ph 50 Hz Run 7.3 A61 dBA @ 3 metres62 dBA @ 3 metres108 kg20 kg485 x 740 x 1,018 mm285 x 565 x 520 mm5 metres (max 30 metres)Automatic thermostat*1.8 kW/h92

Call us Free 0800 211 611or click andrews-sykes.comPAC22 SERIES 2 - PAC UNITNominal cooling dutyAir flow (max)Typical cooled areaPower supplyIndoor noise level (max)Outdoor noise level (max)Indoor weightOutdoor weightIndoor dimensions (L x W x H)Outdoor dimensions (L x W x H)PAC line lengthControlAverage power consumption*Capable of operating downto 10˚C6.47 kW 22,075 btu990 m 3 /h156 m 3230 V 1 ph 50 Hz Run 11 A62 dBA @ 3 metres62 dBA @ 3 metres119 kg20 kg820 x 390 x 1,245 mm285 x 565 x 520 mm5 metres (max 30 metres)Automatic thermostat*2.4 kW/hAIR CONDITIONING93

PAC UNIT - PAC22 SERIES 3Nominal cooling duty6.47 kW 22,075 btuAir flow (max)990 m 3 /hTypical cooled area156 m 3Power supply230 V 1 ph 50 Hz Run 7.3 AIndoor noise level (max) 62 dBA @ 3 metresOutdoor noise level (max) 62 dBA @ 3 metresIndoor weight122 kgOutdoor weight20 kgIndoor dimensions (L x W x H) 380 x 850 x 1,240 mmOutdoor dimensions (L x W x H) 280 x 560 x 520 mmPAC line length5 metres (max 30 metres)ControlAutomatic thermostat*Average power consumption 2.0 kW/h*Capable of operating downto 10˚C*Also available in 230 V 1 ph 60 Hz94

Call us Free 0800 211 611or click andrews-sykes.comPAC60 S3 - PAC UNITNominal cooling dutyAir flow (max)Typical cooled areaPower supplyIndoor noise level (max)Outdoor noise level (max)Indoor weightOutdoor weightIndoor dimensions (L x W x H)Outdoor dimensions (L x W x H)PAC line lengthControlAverage power consumption*Capable of operating downto 10˚C17 kW3,500 m 3 /h410 m 3415 V 3 ph 32A 5 pin65 dBA @ 3 metres70 dBA @ 3 metres230 kg113 kg640 x 1,000 x 1,610 mm605 x 820 x 1085 mm15 metres (max 30 metres)Digital thermostat*5.5 kW/hAIR CONDITIONING95

SELFCONTAINED AIR CONDITIONER - SC14Nominal cooling dutyAir flow (max)Typical cooled areaPower supplyWeightDimensions (L x W x H)15 kW1,600 m 3 /h400 m 3415 V 50 Hz 32A 5 pin220 kg1,600 x 850 x 1,150 mm96

Call us Free 0800 211 611or click andrews-sykes.comLITTLE COOLER - EVAPORATIVE COOLERCooling mediaAir deflection systemAir flowPower supplyBlower speedsWeightDimensions (L x W x H)Reservoir capacityPower consumption (max)Anti-fungus, environment friendlyhoneycomb padFour way928 m 3 /h220/240 V 1 ph 50 Hz325 kg full 11.5 kg empty460 x 340 x 660 mm12 litres170 W/hAIR CONDITIONING97

EVAPORATIVE COOLER - M1000Average dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Reservoir capacityAverage power consumption2.1 l/h1044 m 3 /h20 m 2230 V 1 ph 50 Hz Run 4 A63 dBA @ 1 metre13 kg420 x 550 x 1,008 mm15 litres95 W/h98

Call us Free 0800 211 611or click andrews-sykes.comM800 - EVAPORATIVE COOLERAverage dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Reservoir capacityAverage power consumption2.1 l/h864 m 3 /h20 m 2230 V 1 ph 50 Hz Run 0.4 A63 dBA @ 1 metre12 kg265 x 615 x 1,026 mm15 litres90 W/hAIR CONDITIONING99

EVAPORATIVE COOLER - M900Average dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Reservoir capacityAverage power consumption2.1 l/h1030 m 3 /h24 m 2230 V 1 ph 50 Hz Run 0.4 A63 dBA @ 1 metre15 kg262 x 615 x 1,026 mm15 litres90 W/h100

Call us Free 0800 211 611or click andrews-sykes.comM3000L - EVAPORATIVE COOLERAverage dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Reservoir capacityAverage power consumption2.5 l/h1550 m 3 /h30 m 2230 V 1 ph 50 Hz Run 1.6 A66 dBA @ 1 metre17 kg468 x 637 x 1,157 mm20 litres360 W/hAIR CONDITIONING101

EVAPORATIVE COOLER - M3000CAverage dutyAir flow (max)Typical cooled areaPower supplyNoise level (max)WeightDimensions (L x W x H)Reservoir capacityAverage power consumption2.5 l/h1,550 m 3 /h30 m 2230 V 1 ph 50 Hz Run 1.6 A68 dBA @ 1 metre56 kg510 x 670 x 1,080 mm20 litres360 W/h102

Call us Free 0800 211 611or click andrews-sykes.comDOUBLE COOL - EVAPORATIVE COOLERWater consumptionPower supplyTypical cooled areaAir deliveryWeightDimensions (L x W x H)Reservoir capacityAverage power consumption5.5 l/h (approx)220/240 V 1 ph 50 Hz50 m 21,750 m 3 /h61 kg full 16.5 kg empty645 x 530 x 915 mm410 mm stand height45 litres250 W/hAIR CONDITIONING103

EVAPORATIVE COOLER - CYCLONE DXWater consumptionPower supplyTypical cooled areaAir deliveryWeightDimensions (L x W x H)Reservoir capacityAverage power consumption10 l/h (approx)220/240 V 1 ph 50 Hz90 m 22,550 m 3 /h70 kg full 25 kg empty645 x 530 x 915 mm410 mm stand height45 litres300 W/h104

Call us Free 0800 211 611or click andrews-sykes.comEVENT AIR COMPACT - EVAPORATIVE COOLERWater consumptionPower supplyTypical cooled areaAir deliveryWeightDimensions (L x W x H)Reservoir capacityAverage power consumption4 l/h (approx)220/240 V 1 ph 50 Hz Run 2.6 A100 m 22,750 m 3 /h44 kg700 x 700 x 920 mm40 litres598 W/hAIR CONDITIONING105

FLUID CHILLERS7The UK leader in fluid chillers, fast chillersand air handlers for hireWe offer you fully portable fluid and low temperature chillers,delivered and installed fast from depots nationwide: a genuine24/7 service, 365 days a year. With free site surveys, expertadvice and a wide range to choose from, our specialists willhelp ensure you get the equipment you need at the right price.Fluid chillers - ideal for applications and locations that needquick and reliable temporary cooling. All chillers can be usedin parallel to achieve the cooling capacity you need. They aretypically used for:• Air Conditioning when used with air handlers/fancoils• Process applications in manufacturing e.g. forvolatile petrochemicals, fluids and food productsFacilities Management, Building & Construction andHVAC contractors• Bypassing existing systems for plannedmaintenance, during breakdowns or for disasterrecovery106

Call us Free 0800 211 611or click andrews-sykes.comFLUID CHILLERSWhen sizing a chiller for air conditioning applications thesame principles should be applied that are mentioned in theair conditioning section of this booklet. The location of the airhandlers, fan coils and chiller does require careful consideration andwe would therefore suggest that a site survey is carried out by oneof Andrews specialists.Process applications and breakdown/recovery applications require a greatdeal of calculation to guarantee that flow rates, design temperature and otherrequirements are met, it is therefore essential that an Andrews specialist isconsulted about such applications.In addition to providing the chillers, air handlers and fan coils, Andrews alsoprovide all necessary accessories and additional equipment. This includesgenerators, distribution units, cable, flexible hoses, heat exchangers, valves,pipework, adapters, and flexible ducting.The Andrews specialist hire team offer FREE on-site survey's and advice,together with a delivery, installation and on-site commissioning service. Oncethe equipment is installed it is supported 24 hours a day, 7 days a week by theAndrews service back-up from over 25 depots nationwide.CHILLERS107

HIGH CAPACITY FLUID CHILLERSBasic operating principle of a water chillerRefrigerantsystemExpansionvalveCooling fanCompressorChiller barrelReturn water flowSupply water flowThe Andrews range of high capacity fluid chillers have been developed to provide afast and efficient solution for many applications that require high volumes of coolingcapacity. In the standard format fluid chillers can provide cooling water to productionprocesses or to bypass/assist permanently installed chillers. When used along withour wide range of air handlers and fan coils, fluid chillers provide high capacity airconditioning for a wide range of applications.The standard range comprises of units up to 750kW in capacity and can be used inparallel to achieve higher capacities. Larger units for long term applications are alsoavailable. A wide range of temperatures can be provided, with units able to achievewater temperatures below -15ºC. Heat pump versions are available on some models toprovide not only cooling but also heating.All of the units in the Andrews fluid chiller range are air cooled and do not require apermanent water supply. The chiller unit must be placed in a well ventilated area thatis able to accept the heat dissipation from the area being cooled. Ideally chillers shouldalways be installed on the exterior of the building, where the ambient air can providecooling.Each of the units contains a heat exchanger, condenser, control system, compressorand circulating pumps. Mounted on robust base plates complete with lifting facility, theunits can be transported and positioned with the minimum of disruption. The waterconnection on the supply and return pipework is normally achieved with quick actioncouplings, removing the need for complicated pipe connections. The chillers use flexiblehoses to provide chilled water to either the air handlers or the clients own system.108

Call us Free 0800 211 611or click andrews-sykes.comCHILLERS FOR AIR CONDITIONINGThe operation of high capacity fluid chillersAndrews offer 3 principle methods of using fluid chillers. These are as follows:Fluid chillerAir Handling Unit(internal/external)Cold AirPumpWarm AirThis is where a fluid chiller (or chillers) are connected to airhandling units (AHU) or fan coils via flexible pipework.The chiller provides chilled water to each of the fan coils or AHU, which is then pumpedthrough a coil over which the room air is passed. As the air passes over the cold coil theair temperature will drop, the drop in temperature will depend on several factors suchas air flow, air temperature and humidity. Each time the air is passed over the cold coil asimilar drop in temperature will take place, this will enable the room temperature to becontrolled within specified criteria. As the warm air passes over the cold coil the chilledwater temperature rises and therefore returns to the chiller as warm water, the water isthen chilled again and returned to the air handlers or fan coils and so the circuit is closed.Some fan coils have thermostatically operated valves which open and close in relation tothe room temperature, bringing in chilled water when required and remaining closed whenthe desired temperature is achieved. The chiller operates as required depending on thewater temperature, although the circulating pump operates at all times.The normal installation has the fan coils units installed within the room that requirescooling, or AHU installed outside of the room with the air ducted into the room andreturned via heavy duty flexible ducting. However in some circumstances it is possible tofit flexible ducting to the fan coils and in others it is possible to install the AHU within theroom that is to be cooled.With heat pump versions of the fluid chillers it is possible to generate hot water andthereby use the fan coils and AHUs as heaters rather than air conditioners. In applicationsthat may require heating at night and cooling by day it is possible to fully automate thisprocess.CHILLERS109

CHILLERS FOR PROCESS APPLICATIONFluid ChillerProcess ReturnPumpHeat ExchangerProcess FlowThis system is often used where a product requires cooling butdue to its nature or consistency cannot come into contact withthe refrigeration process. Such products include oil, volatilefluids and food products. Andrews overcome this problem byusing a fluid chiller in conjunction with a process heat exchanger(normally a plate type).The fluid chiller produces chilled water which is then circulated through the heatexchanger and then returned to the chiller in a closed circuit. The product that requirescooling is also circulated through the heat exchanger but is kept separate from thechilled water at all times. As the product passes through the heat exchanger it is cooledby the chilled water that is being circulated at the same time, this enables the productstemperature to be reduced to the specified level. As the chilled water passes throughthe same heat exchanger its temperature will rise, as it is effectively being heated bythe product. The water will then become warm as it is returned to the chiller to becomechilled once more and so the circuit is closed.The connection between the heat exchanger and the chiller would normally be throughflexible pipes with quick release couplings. The temperature can be controlled by thecontrol system within the chiller itself. This application can be easily adjusted to suitmost environments.110

Call us Free 0800 211 611or click andrews-sykes.comCHILLERS FOR BREAKDOWN RECOVERYFluid Chiller (temporary)Process FlowProcess Flow divertedthrough temporarychiller via shut off valvesFlowand ReturnFluid Chiller (faulty)Process ReturnThis application can normally be used where an existing chillersystem has broken down, is required to be taken out of operationor needs additional cooling assistance. Such situations may bedue to building modifications, maintenance shut downs, mainplant failure or abnormal heat loads within the building.An Andrews fluid chiller can be connected into the clients own pipework system usingflanged connections which will be fitted with isolating valves and quick release pipeadapters. Flexible hoses would then connect onto the pipework and run to the temporarychiller.Where possible the client's own pipework, circulating pumps and controls continue tobe used. In some situations the circulating pumps within the chiller may be adequate tocope, or can assist the existing pumps.Careful consideration must be given to the effect of increasing the flow rate of thechilled water, if the temporary chiller is to be used in conjunction with an existingsystem. Andrews specialists are able to advise on the correct sizing and correct use ofsuch applications, however it is vital that details of the required flow rates, temperaturesand cooling duty are known. A full system diagram of the existing installation is alsorequired. Such systems can be used as a semi-permanent solution or as an emergencyback up.CHILLERS111

LOW TEMPERATURE CHILLER - FC21Nominal cooling dutyAir flow (max)Plug typePower supplyIndoor noise level (max)Outdoor noise level (max)Indoor weightOutdoor weightIndoor dimensions (L x W x H)Outdoor dimensions (L x W x H)ControlAverage power consumptionLine lengthOperating temp rangeGenerator size6.1 kW 21,000 btu3,000 m 3 /hBS4343 230 V 32 A230 V 1 ph 50 Hz Run 24 A55 dBA @ 3 metres65.1 dBA @ 1 metre120 kg75 kg990 x 790 x 895 mm700 x 680 x 670 mmAutomatic thermostat6.0 kW/h15 metres (max 2 = 30 metres)-10ºC to +30ºC12 kVA112

Call us Free 0800 211 611or click andrews-sykes.comFC45 - LOW TEMPERATURE CHILLERNominal cooling dutyAir flow (max)Plug typePower supplyIndoor noise level (max)Outdoor noise level (max)Indoor weightOutdoor weightIndoor dimensions (L x W x H)Outdoor dimensions (L x W x H)ControlAverage power consumptionLine lengthOperating temp rangeGenerator size13.1 kW 45,000 btu5,600 m 3 /hBS4343 32 A 3 ph N+E415 V 3 ph N+E 50 Hz Run 24 A/h60 dBA @ 3 metres70 dBA @ 1 metre330 kg175 kg1,240 x 900 x 1,700 mm1,240 x 900 x 900 mmAutomatic thermostat17.0 kW/h15 metres (max 2 = 30 metres)-10ºC to +30ºC20 kVACHILLERS113

LOW TEMPERATURE CHILLER - FC90Nominal cooling dutyAir flow (max)Plug typePower supplyIndoor noise level (max)Outdoor noise level (max)Indoor weightOutdoor weightIndoor dimensions (L x W x H)Outdoor dimensions (L x W x H)ControlAverage power consumptionLine lengthOperating temp rangeGenerator size26.3 kW 96,000 btu10,000 m 3 /h63 A 3 ph N+E415 V 3 ph N+E 50 Hz Run 37 A/h63 dBA @ 3 metre73 dBA @ 1 metre597 kg460 kg2,000 x 1,400 x 1,800 mm1,350 x 1,350 x 1,800 mmAutomatic thermostat27.0 kW/h15 metres (max 2 = 30 metres)-10ºC to +30ºC30 kVA114

Call us Free 0800 211 611or click andrews-sykes.comCHILLERSGraphs FC 21/FC 45/FC 90KW cooling air353025FC90m 31.000800(assuming STD.K-Values forapplications)2015105FC45FC21600400200030 25 20 15 10 5 0 -5 -10 -150Room temperature °CAir conditioningStandard roomsBeer CellarVegetable storageFood storageFresh meat storageFrozen meat storageBased on an ambient temperature of 30 °CCHILLERS115

CHILLER UNIT - 30 KWNominal cooling dutyNominal heating duty(HP version)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionGenerator sizeWater connection30 kW 102,360 btu30 kW 102,360 btu415 V 3 ph N+E 50 Hz Run 19 A/hBS4343 32 A 5 pin53 dBA @ 10 metres450 kg1,600 x 860 x 1,700 mmAutomatic programmer10 kW/h30 kVA1.25” Camlock116

Call us Free 0800 211 611or click andrews-sykes.com50 KW - CHILLER UNITNominal cooling dutyNominal heating duty(HP version)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionGenerator sizeWater connection50 kW 170,500 btu50 kW 170,500 btu415 V 3 ph N+E 50 Hz Run 30.25 A/hBS4343 32 A 5 pin72 dBA @ 10 metres825 kg1,600 x 1,080 x 1,750 mmAutomatic programmer16.21 kW/h50 kVA1.25” CamlockCHILLERS117

CHILLER UNIT - 100 KWNominal cooling dutyNominal heating duty(HP version)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionGenerator sizeWater connection100 kW 341,200 btu100 kW 341,200 btu415 V 3 ph +E 50 Hz Run 70 A/hBS4343 63 A 5 pin58 dBA @ 10 metres2,150 kg3,090 x 1,330 x 2,775 mmAutomatic programmer44 kW/h75 kVA2” Bauer118

Call us Free 0800 211 611or click andrews-sykes.com200 KW - CHILLER UNITNominal cooling dutyNominal heating duty(HP version)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionGenerator sizeWater connection200 kW 682,400 btu200 kW 682,400 btu415 V 3 ph +E 50 hz Run 120 A/hHard wired53.3 dBA @ 10 metres3,500 kg4,100 x 2,300 x 2,700 mmAutomatic programmer63.2 kW/h140 kVA3” BauerCHILLERS119

CHILLER UNIT - 375 KWNominal cooling dutyPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionGenerator sizeWater connection375 kW 1,279,500 btu415 V 3 ph +E 50 hz Run 199 A/hHard wired70 dBA @ 10 metres4,800 kg6,058 x 2,438 x 2,591 mmAutomatic programmer99 kW/h200 kVA dependent on systemresistance and pump size4” Bauer/DN 100 PN16 Flange120

Call us Free 0800 211 611or click andrews-sykes.com400 KW - CHILLER UNITNominal cooling dutyPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionGenerator sizeWater connection400 kW 1,876,600 btu415 V 3 ph +E 50 hz Run 320 A/hHard wired77 dBA @ 10 metres4,200 kg3,500 x 2,438 x 2,590 mmAutomatic programmer63.2 kW/h450 kVA4” Bauer/DN 100 PN16 FlangeCHILLERS121

CHILLER UNIT - 550 KWNominal cooling dutyPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionGenerator sizeWater connection550 kW 1,876,600 btu415 V 3 ph +E 50 Hz Run 320 A/hHard wired77 dBA @ 10 metres4,200 kg3,000 x 2,438 x 2,590 mmAutomatic programmer163.2 kW/h400 kVA4” Bauer/DN 100 PN16 Flange122

Call us Free 0800 211 611or click andrews-sykes.com550 KW - CHILLER UNITNominal cooling dutyPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionGenerator sizeWater connection550 kW 1,876,600 btu415 V 3 ph +E 50 Hz Run 320 A/hHard wired75 dBA @ 10 metres4,100 kg3,600 x 2,400 x 2,000 mmAutomatic programmer160 kW/h400 kVA dependent on systemresistance4” Bauer/DN 100 PN16 FlangeCHILLERS123

CHILLER UNIT - 750 KWNominal cooling dutyPower supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionGenerator sizeWater connection750 kW 2,559,000 btu415 V 3 ph +E 50 Hz Run 576 A/hplus pump setHard wired77 dBA @ 3 metres7,450 kg6,058x 2,438 x 2,591 mmAutomatic programmer218 kW/h550 kVA dependent on systemresistance and pump size4” Bauer/DN 100 PN16 Flange124

Call us Free 0800 211 611or click andrews-sykes.com15/30 KW - FAN COIL UNITNominal cooling dutyNominal heating dutyAir flow (max)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionIntegral condensate pumpFan speed controller15 kW 51,180 btu30 kW 102,360 btu2,048 m 3 /h230 V 1 ph 50 Hz Run 3 ABS1363 13 A56 dBA @ 1 metre96 kg650 x 500 x 2,060 mm (with top box)Automatic thermostat690 W/hYesYesAIR HANDLERS125

FAN COIL UNIT - 15/30 KW EVENT VERSIONNominal cooling dutyNominal heating dutyAir flow (max)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionIntegral condensate pumpFan speed controller15 kW 51,180 btu30 kW 102,360 btu1,200 m 3 /h230 V 1 ph 50 Hz Run 3 ABS1363 13 A52 dBA @ 1 metre70 kg540 x 300 x 1,800 mmAutomatic thermostat690 W/hYesYes126

Call us Free 0800 211 611or click andrews-sykes.com30/60 KW - FAN COIL UNITNominal cooling dutyNominal heating dutyAir flow (max)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumptionIntegral condensate pumpFan speed controller30 kW 102,360 btu60 kW 204,720 btu4,197 m 3 /h240 V 1 ph 50 Hz Run 4 ABS1363 13 A58.5 dBA @ 1 metre140 kg1,050 x 500 x 2,060 mm (with top box)Automatic thermostat920 W/hYesYesAIR HANDLERS127

AIR HANDLER UNIT - 50/100 KWNominal cooling dutyNominal heating dutyAir flow (max)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)Average power consumptionIntegral condensate pumpFan speed controller50 kW 170,600 btu100 kW 341,200 btu4,500 m 3 /h240 V 1 ph 50 Hz Run 4.8 ABS4343 240 V 16 A74 dBA @ 1 metre460 kg1,500 x 750 x 2,250 mm (with top box)1.2 kW/hYesYes128

Call us Free 0800 211 611or click andrews-sykes.com150/300 KW - AIR HANDLER UNITNominal cooling dutyNominal heating dutyAir flow (max)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)Duct length (max)Duct sizeAverage power consumptionIntegral condensate pumpFan speed controller150 kW 511,800 btu300 kW 1,023,600 btu20,160 m 3 /h415 V 3 ph 50 Hz N+E Run 20 A/hBS4343 5 Pin 32 A84 dBA @ 1 metre934 kg2,260 x 2,150 x 1,700 mm50 metres2 x 600 mm14.3 kW/hYesNoAIR HANDLER129

AIR HANDLER UNIT - 300/600 KWNominal cooling capacityNominal heating capacityAir flow (max)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)Duct length (max)Duct sizeIntegral thermostatIntegral condensate pumpFan speed controller300 kW 1,023,600 btu600 kW 2,047,200 btu35,388 m 3 /h415 V 3 ph 50 Hz N+E Run 30 A/hBS4343 5 Pin 32 A81 dBA @ 5 metres2,150 kg3,780 x 2,340 x 2,590 mm50 metres4 x 600 mmNoYesNo130

Call us Free 0800 211 611or click andrews-sykes.comPUMPSAndrews Pumps delivers the most dependable pump hire equipment andthe most effective pumping solutions for all your cooling requirements.From fixed to variable speed pumping equipment, Andrews can supplythe complete solution. We can offer a complete end-to-end service: fromsite surveys and planning, through consultancy and engineering skills, toexpert installation. Our pumps can handle almost every conceivable need,from high pressure chilled water supply to hot water supply for centralheating plants.CHILLERS131

HEAT EXCHANGERSAndrews Heat Exchanger hire offer the biggest range of Heat Exchangers,air handlers and cooling accessories for hire in the UK. We can deliverto you fast from our nationwide depots and unlike other suppliers weguarantee a "genuine" 24/7 365 days a year fast and friendly service.We will help you decide which Heat exchanger hire unit is best for you tohelp with your process applications. Our Heat Exchanger Rental servicepromise is to be onsite within four hours of your call with reliable andtested Heat Exchangers for all of your cooling or heating requirements.132

Call us Free 0800 211 611or click andrews-sykes.comVENTILATION & EXTRACTION FANSSometimes, just opening a door or windowisn't nearly enough - but good ventilationis not only essential to creating acomfortable working environment, it canalso be a government and Health and Safetyrequirement. Our cooling, extraction andventilation fans mean you have fresh aircirculating as and when you need it.8Ventilation can happen in various ways. Forexample by opening of doors, windows or grills.Sometimes this method of ventilation is notpossible or inadequate. In such cases, Andrews hasan extensive range of mobile fans. Andrews offersa choice of ventilators that are free blowing or withair hoses.For air extraction, it is important that in the areawhere the fan is installed, sufficient air supplyopenings are present. Andrews fans are used foractivities such as welding, tank cleaning, sewerwork, excavation of contaminated soil, painting anddemolition.VENTILATION & EXTRACTION FANS133

VENTILATIONVENTILATION & EXTRACTION FANSIn addition, the fans are often suitable for the temporary storage ofagricultural products and the storage of livestock. And of course thefree-blowing fans are also excellent for creating cool tents, parties,exhibitions, sports halls, theaters, meeting rooms, canteens, offices, etc.(On average, the content of a house has to be refreshed four times anhour) The following table shows the most common ventilation rates andstandards:Ventilation rates per hourType of space Ventilation Rates Type of space Ventilation RatesCafés 10-12Garages 4 -6Foundaries 8-15Canteens 6-8Laboratories 5 -15Engineering 15-30Storage 3-6Restaurants 6-10Sports Halls 2-3Theaters 5-8Spray Paint Workshops 20-50Meeting Rooms 5-10Workshops 6-10Fume Cupboards 40-50Offices 4-8Useful tips on calculation and sizing for the correct Andrewsventilation fanThe selection of the correct fan can be achieved with the help of thefollowing calculation:1. Calculate the volume of the room which needs to be ventilated (W x L x H)2. Select the recommended number of air changes per hour3. Multiply the results of 1 by result 2, this will give the required air4. Volume per hour5. Select the correct fan or fans to achieve this air flow.134

Call us Free 0800 211 611or click andrews-sykes.comVENTILATION & EXTRACTION FANSExampleAn engine room which is 3 metres high x 8 metres wide x 22 metres longrequires ventilation due to heat and fume build up. From the chart we cansee that the recommended air change is between 15 and 30 depending onthe intensity of the application. This case is fairly intense so on the sideof caution we can use the ratio of 30 changes per hour.To calculate;3 m x 8 m x 22 m = 528 m 3 x 30 changes = 15,840 m 3 per hourIn this situation a model FV900 which has a capacity of 16,500 m 3 perhour would be most suitable.3 mfanair22 m8 mImportant note on using ducted unitsIf it is necessary to use long lengths of ducting or involve several bends inthe ducting, it must be remembered that the resistance in the ducting willincrease and the air volume provided will decrease drastically.Due to high resistance, certain fans can become useless, although thestated air volume at low pressure would not indicate this at first sight.The Andrews FV fans do have high pressure capacity and can be usedwith several lengths of ducting.In some applications it may be better to blow rather than suck the air out,or use a combination of the two. When used in sensitive environmentsor handling ignitable fumes, special precautions and equipment mustbe used. If the application is sensitive, complicated or long lengths ofducting need to be used, you should consult your local Andrews specialistwho will be able to provide advice on all types of installations.VENTILATION & EXTRACTION FANS135

VENTILATIONCARPET DRYER - TURBO DRYERAir flow (max)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumption4,500 m 3 /h230/110 V 1 ph 50 Hz Run 1.9 ABS1363 3 pin67.5 dBA @ 1 metre12.4 kg510 x 380 x 470 mmManual variable speed440 W/h136

Call us Free 0800 211 611or click andrews-sykes.comASF21 - COOLING FANAir flow (max)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumption6,000 m 3 /h230/110 V 1 ph 50 Hz Run 1.15/3 ABS1363 230 V BS4343 16 A 110 V67.5 dBA @ 1 metre10 kg300 x 640 x 640 mmManual variable speed265 W/hVENTILATION & EXTRACTION FANS137

VENTILATIONCOOLING FAN - ASF 50Air flow (max)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumption11,000 m 3 /h230/110 V 1 ph 50 Hz Run 3.7/6.1 ABS1363 230 V BS4343 16 A 110 V80 dBA @ 1 metre21 kg345 x 840 x 820 mmManual variable speed851 W/h138

Call us Free 0800 211 611or click andrews-sykes.comASF950 - COOLING FANAir flow (max)Power supplyPlug typeNoise level (max)WeightDimensions (L x W x H)ControlAverage power consumption37,000 m 3 /h230/110 V 1 ph 50 Hz Run 10/21 ABS1363 230 V BS4343 32 A 110 V95 dBA @ 1 metre49 kg440 x 1,050 x 1,170 mmManual variable speed2.3 kW/hVENTILATION & EXTRACTION FANS139

VENTILATIONVENTILATION/EXTRACTION FAN - FV100 DVAir flow (max)Power supplyPlug typeGenerator sizeDuct sizeNoise level (max, with duct)WeightDimensions (L x W x H)ControlAverage power consumption1,700 m 3 /h230/110 V 1 ph 50 Hz Run 5/10.5 ABS1363 230 V BS4343 16 A 110 V5 kVA min200 mm78.6 dBA @ 1 metre27 kg605 x 440 x 535 mmManual1.15 kW/h140

Call us Free 0800 211 611or click andrews-sykes.comFV300 - VENTILATION/EXTRACTION FANAir flow (max)Power supplyPlug typeGenerator sizeTransformer sizeDuct length (max)Duct sizeNoise level (max, with duct)WeightDimensions (L x W x H)ControlAverage power consumption4,930 m 3 /h110 V 1 ph 50 Hz Run 17 ABS4343 32 A 110 V7 kVA min5 kW min40 metres300 mm86.9 dBA @ 1 metre130 kg920 x 720 x 1,045 mmManual2 kW/hVENTILATION & EXTRACTION FANS141

VENTILATIONVENTILATION/EXTRACTION FAN - FV600Air flow (max)Power supplyPlug typeGenerator sizeDuct length (max)Duct sizeNoise level (max, with duct)WeightDimensions (L x W x H)ControlAverage power consumption12,100 m 3 /h415 V 3 ph 50 Hz +E Run 6 A/hBS4343 5 pin 16 A 415 V20 kVA40 metresInlet 600 mm Outlet 45083 dBA @ 1 metre245 kg1,115 x 1,115 x 1,350 mmManual4.25 kW/h142

Call us Free 0800 211 611or click andrews-sykes.comFV900 - VENTILATION/EXTRACTION FANAir flow (max)Power supplyPlug typeGenerator sizeDuct length (max)Duct sizeNoise level (max, with duct)WeightDimensions (L x W x H)ControlAverage power consumptionEXPLOSION PROOF ALSO AVAILABLE16,500 m 3 /h415 V 3 ph 50 Hz Run 10 AhBS4343 3 ph 5 pin 415 V 16 A/h35 kVA40 metresInlet 600 mm Outlet 450 mm86.6 dBA @ 1 metre295 kg1,230 x 1,170 x 1,500 mmManual7.1 kW/hVENTILATION & EXTRACTION FANS143

VENTILATIONVENTILATION/EXTRACTION FAN - FV1800Air flow (max)Power supplyPlug typeGenerator sizeDuct length (max)Duct sizeNoise level (max, with duct)WeightDimensions (L x W x H)ControlAverage power consumption33,600 m 3 /h415 V 3 ph 50 Hz Run 36 AhBS4343 3 ph 5 pin 415 V 63 A/h100 kVAInlet 30 metres Outlet 60 metresInlet 630 mm Outlet 630 mm82 dBA @ 1 metre450 kg2,200 x 2,200 x 2,300 mmManual18.5 kW/h144

Call us Free 0800 211 611or click andrews-sykes.comACCESSORIES FOR VENTILATIONl Power Cable 110V/240V/415Vl Temporary Extract/Supply Ductingl Filter Boxesl Dust Suppression Bagsl 110V TransformersDEFINITIONSVENTILATION & EXTRACTION FANS145

201.5 sq.m2.5 sq.mm4 sq.mm76Per 100 met. cable15105ELECTRICAL DATA0 45432108 12 16 20 24 28 Amps6 sq.mm10 sq.mm16 sq.mmPer 100 feet cableVolts2520SINGLE PHASE1.5 sq.mm2.5 sq.mmVolts76Per 100 met. cable15104 sq.mm6 sq.mm10 sq.mm5432Per 100 feet cable510408 12 16 20 AmpsNote: Max voltage drop allowed must not exceed 2.5% of the normal voltageStandard electrical supplies in the UK110 volt single phase (110/1/50) standard voltage found on construction sites for smalltools and portable appliances usually only available up to 32 amp.415 volt three phase (415/3/50) standard voltage on site and within industry for thelarger equipment that is not portable.240 volt single phase (240/1/50) standard domestic voltage used for householdappliances, retail and light industrial.Power = kilowatts (kW)Current = Amps (A)Voltage = Volts (V)Single PhaseThree PhasekW =Volts x Amps x Eff %1000 x 100Volts x Amps x Eff % x PF x 1.731000 x 100146

Call us Free 0800 211 611or click andrews-sykes.comELECTRICAL DATA2520Volts1.5 sq.mm3 PHASE2.5 sq.mm4 sq.mmVolts76Per 100 met. cable151056 sq.mm10 sq.mm16 sq.mm5432Per 100 feet cable10408 12 16 20 24 28 AmpsVoltage dropThe amount of voltage SINGLE PHASEVolts lost when using long cable lengths, causes cable Volts to get hot and25become unsafe. The motor will also draw excessive current causing overloads to trip and7motor to overheat the maximum permissible voltage drop over a length of cable is 2.5%.20To calculate volt drop use table on page 79 or use the following calculation, 6 based oncopper cable.Per 100 met. cable1.5 sq.mm2.5 sq.mm5154 sq.mmVoltage drop = Length of cable (m) x 0.018 (resist) x Amps x 1.7310 Cross sectional area of cable (mm 2 )36 sq.mm10 sq.mm2The above will give 5 the voltage lost in cable length (v) divide by the supply voltage will1give the % drop which must not exceed 2.5%4Per 100 feet cable08 12 16 20 AmpsExample0416 Amp 3 phase 415 volt pump using 60 metres of 2.5mm cableNote: Max voltage drop allowed must not exceed 2.5% of the normal voltage60 X 0.018 x 16 x 1.73 = 11.962.5mm 211.96 volt / 415 volt = 2.8% Therefore a larger cable is required as the volt dropexceeds 2.5%ELECTRICAL DATA147

CONVERSION FACTORSInches x 25.4 = mm x 0.0394 = InchesFeet x 0.3048 = m x 3.281 = FeetYards x 0.9144 = m x 1.0936 = YardsMiles x 1.609 = km x 0.6214 = MilesFt² x 0.0929 = m² x 10.764 = Ft²Miles² x 2.59 = km² x 0.3861 = Miles²In³ x 16387 = mm³ x 0.000061 = In³Ft³ x 0.02832 = m³ x 35.31 = Ft³Gals (Imp) x 4.546 = L x 0.22 = Gals (Imp)Gals (Imp) x 0.004546 = m ³ x 220 = Gals (Imp)btu x 0.000293 = kW x 3412 = btuLBS x 0.4536 = kg x 2.2046 = LBSTons x 1016 = kg x 0.000984 = TonsCFM x 1.701 = m³ / h x 0.5878 = CFML / sec x 3.6 = m³ / h x 0.277 = L / secPSI x 0.06895 = Bar x 14.504 = PSIHP x 0.7457 = kW x 1.341 = HP148

Call us Free 0800 211 611or click andrews-sykes.comTEMPERATURE CONVERSIONMAXIMUM 23ºCRecommended by Chartered Institute of BuildingServices EngineersCALL ANDREWS AIR CONDITIONINGHIREMINIMUM 16ºCLegal minimum Health & Safety ExecutiveAct of 1963CALL ANDREWS HEAT FORHIRECONVERSION CENTIGRADE TO FAHRENHEITºC x 1.8+32= ºFºF - 32÷1.8= ºCELECTRICAL DATA149

DEFINITIONS9R.H.Relative Humidity is the relationship between theamount of water vapour in air at any temperatureand the maximum amount of water vapourwhich the air could absorb before condensationtakes place. Relative humidity is expressed as apercentage.Dew PointThe temperature at which water vapour in the aircondenses out.Vapour pressureThe partial pressure in the air due to the presenceof water.CondensationWhen humid air cools, the water vapour becomesliquid.Cold BridgeAn area of physical contact between a warm andcold surface where condensation occurs.Surface areaL x B = m 2150

Call us Free 0800 211 611or click andrews-sykes.comDEFINITIONSVolumeL x B x H = m 3Latent HeatThe heat required to evaporate or condense water with no change intemperature.K-factorHeat transmission coefficient.Wet Bulb TemperatureTemperature of humid air with a thermometer with a wet covering aroundthe mercury reservoir, at an air speed of +/-3 m/sec.Dry Bulb TemperatureTemperature of humid air, measured with a normal thermometer.Absolute HumidityAmount of water vapour, expressed in kg, which is present per kg. of dryair.Psychrometric DiagramA diagram in which a relation is given between the absolute and relativehumidity at a specified pressure for each temperature.PressureForce per surface unit (n/m 2 - PA).DEFINITIONS151

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CALL US FREE ON0800 211 611With locations across the UK,calling 0800 211 611 is all it takesfor our experts to be with you fast.We pride ourselves on delivering atruly local service - nationwideAberdeen ● Ashford ● BasildonBirmingham ● Bovey Tracey ● BristolGlasgow ● Grangemouth ● InvernessLeeds ● Liverpool ● London CharltonMilton Keynes ● Norwich ● NottinghamOldham ● Penrith ● PeterboroughPontypridd ● PortsmouthScunthorpe ● Sedgefield ● SloughSt. Austell ● Stoke on Trent ● SwanseaWe also have operations inEurope and the Middle East.Premier House, Darlington StreetWolverhampton, WV1 4JJTel: 01902 328700 Fax: 01902 422466E-mail: info@andrews-sykes.comandrews-sykes.com