Specifications

Section-2 Installation
November 11, 2013
2‐6
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Caution
FOR VERTICALLY MOUNTED HEAT EXCHANGERS (EXHAUST AIR
PARALLEL TO GROUND ON FAN SIDE) THERE SHOULD BE NO
OBSTRUCTION WITHIN TWO METERS OF THE EXHAUST SIDE OR WITHIN
ONE METER OF THE INTAKE . HORIZONTALLY MOUNTED HEAT
EXCHANGERS (EXHAUST AIR DIRECTED UPWARD) SHOULD HAVE NO
OBSTRUCTIONS WITHIN TEN METERS OF OUTPUT EXHAUST.
Amethodofprotectionfromprevailing,directwindisrecommendedontheexhaustsideofverticalheatexchanger
fans.Ablockingpartitionapproximately4metersfromtheexhaustsideofthefanisrecommended.Blocking
incomingwindhelpspreventfanstartupproblemsduetobackwardfanrotation.
Theheatexchangerunitmustbelevelbeforefasteningmountinglegstothesupportingstructure(steelframefor
rooflocationorconcretepadforgroundlocation).
STEP 1 Lifttheheatexchangerunitandplaceintoposition(verticalorhorizontally
orientedheatexchangersmaybeencountered).Observemanufacturer’s
assemblyandliftingrecommendations.
STEP 2 Installthelegchannelsandbraceanglesasrequired.
STEP 3 Carefullyplaceassembledunitontoconcretepadorsupportframe.
STEP 4 Leveltheunitusingshims.
STEP 5 Securetheunittotheconcretepadorsupportframeusinganchorbolts.
STEP 6 Installsafetywarninglabels.Locateandinstallaccordingtoinstructions.
STEP 7 EndofProcedure.
2.7.4 PlacementofPumpModule
TheHEpumpmodulemustbeinstalledindoors.Anelectricalcontrolpanelisintegratedintothepumpmodule
assembly.Someearlierversionsofthepumpmoduleandcontrolpanelweredesignedforeitherindoorouroutdoor
use.ThecurrentHEpumpmoduleisspecificallydesignedforindooruseonly.
Thepumpmoduleshouldbepositionednearthetransmittersotheelectricalpanelcanbereadilyviewedandis
easilyaccessible.
STEP 1 Liftthepumpmoduleunitandplaceitinthedesiredlocation.
STEP 2 Levelthepumpmodulewithshimsasrequired.
STEP 3 Securethepumpmoduleunittopreventmovementduringoperation.
STEP 4 Installsafetywarninglabels.
STEP 5 Endofprocedure.
2.7.5 PlumbingInstallation
Thesystemtotalcoolantplumbingcircuitlengthmustnotexceed40meters(131feet)totallengthincludingsupply
andreturnlines.Vertically,amaximumdifferenceof8meters(26feet)betweenpumpmodule/heatexchangerand
thetransmitterisallowable.
Layouttheliquidcoolingsystemwithasfewelbowsaspossiblebecauseexcessiveelbowsorbacktoback45or90
degreeelbowswillgreatlyrestrictthecoolantflow.Ifhoseisusedinsteadofcopperlines,avoidsharpbendsofthe
hosesbecausethatcancollapsethehoseatthe
bendandgreatlyrestrictcoolantflow.Hoseswillrequiremore
supportthancopperlines.Ifhosesaretobeused, laytheminacabletrayifpossible,orusepaddedhosesupportsa
MINIMUMof1meterapart.
Anyturbulencecausingdeviceinthecoolantplumbingsystemcanrestrictflowandincreasethedynamichead
pressureofthepump.Iftwoturbulencecausingdevicesareconnectedbacktoback,theflowrestrictionand