Specifications

Section-2 Installation
November 11, 2013
2‐22
Copyright©2013,HarrisBroadcast
WARNING:Disconnectprimarypowerpriortoservicing. 888‐2628‐300
2.12.1 HeatExchanger&PumpModuleStart‐up
TheelectricalinstallationshouldbecompletedandshouldbeinaccordancewiththeNationalElectricalCodeand
anylocalcodesandregulations.Theincomingpowersupplycanbe208to240V‐3Ph‐50or60Hz,or380to415V‐
3Ph‐50or60Hz.Exactlinevoltageandconfigurationshouldhavebeen
specifiedatthetimetheorderwasplaced.
Fanandpumpmotorsarethreephas eandhavecurrentoverloadprotectionprovidedbytheinverter/controllers.
Priortostart‐up,eachfanmotorshouldbecheckedforfreedomofmovementandtoverifythatthefanbladeis
securelyfastenedtothemotorshaft.Pumpandfandirectionofrotationmustbecheckedattheinitialpowerupof
thepumpmoduleandheatexchanger.Verificationof
pumpandfanrotationisoutlinedintheHEpumpmodule
manual888‐2625‐001Section2.6.
Caution
INCORRECT (REVERSE) ROTATION OF THE PUMPS OR FANS WILL CAUSE
POOR COOLANT OR AIR FLOW AND MAY DAMAGE THE DEVICES.
CORRECT PUMP ROTATION BY SWITCHING ANY TWO OF THE AC LINES AT
THE OUTPUT OF INVERTERS. CORRECT ROTATION OF THE FANS BY
SWAPPING TWO OF THE AC LINES FEEDING THE FANS.
Fansandmotorsaredirectconnected.Motorsarepermanentlylubricate dforthelifeofthemotor.Allpumpshave
maintenance‐freepumpseals.
Note
Job site environmental conditions should be evaluated periodically to maintain operational reliability.
Schedule maintenance activities to accommodate changing environmental conditions at the site.
2.12.2 ChargingClosedLoopCoolingSystem
Initialchargingoftheclosedloopcoolingsystemis outlinedinSection2.6oftheHEpumpmoduletechnical
manual.Section2.7includesinstructionsforchargingthesystemusingcirculatingpumpB.Refertothose
instructionstochargethesystem.
2.12.3 Initial SystemLeakTesting
Oncethesystemischargedwithwaterperformleaktestingpriortochargingthesystemwiththe50/50glycol/
distilledwatermixture.
Checkimmediatelyforanyleaksatthefollowingcoolingsystempoints.
• Transmitterinletandoutletpipeconnections
• Pumpmoduleinletandoutletpipeconnections
• Heatexchangerinletandoutletpipeconnections
• Allsolderjoints,systemvalvesand drainvalves
Repairanydetectedleaks.Ifleakshavedeveloped,dependinguponthegivenleak’slocation,watermayhavetobe
drainedfromthesystembeforemakingrepairs.
2.12.4 Initial SystemFlushing
Oncethecoolingsystemhasbeendeterminedtobefreeofleaksitmayneedtobecleanedandflushedbefore
continuingtheinstallation.
STEP 1 Drainallwat erfromsystem.Monitorthelevelofwaterthatisreturnedtothe
containertodeterminetrappedwaterinsystem.Tomoreeasilydrainthe
systemopenallofthesystemandcabinetdrainandventvalves.Oncedraining
iscompletecloseallcabinetdrainvalves.Thechargepump,
ifused,canbe
reversedtoaidindrainingthesystem.