Specifications

Section-5 Maintenance
November 11, 2013
5‐38
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WARNING:Disconnectprimarypowerpriortoservicing. 888‐2628‐300
5.13.10 LeakDetectorandCabinetDrains
Aleakdetectorisinstalledatthebottomofthecabinet.TheleakdetectorisshowninFigure5‐1onpage5‐38.Itis
mountedinthebottomc abinetnearthecenter.Theleakdetectorconsistsofasmallreservoirwithafloat.TheTCU
monitorsthisleakdetectortoalertthesystemshouldaleakoccur.Aleakdetectionwillcausethetransmitterand
thepumptobeshutoffbyactivatingthepump
interlocksignal.Inordertoresettheleakdetectorthefloat
assemblymustberemovedandadrainplugremoved.Removingthedrainplugallowsthereservoirtodrainintothe
drippanatthebottomofthecabinet.Oncethereservoirisdrainedandtheleakdetectorassemblyreinstalled
the
transmittercanberestartedbypressingtheONbuttononthefrontoftheTCU.
Thecabinetcanbeemptiedofcoolantbyfirstturningoffthepumps,closingtheinletandoutletvalvesatthetopof
thetransmitterandthenopeningthefitt ingsattheendofthesupplyandreturnsidedrainhosesinsidethecabinet.
Usea7/16"openendwrenchto
openthedrainvalves.
Figure 5-1 Leak Detector and Cabinet Drains
5.14 TCUMaintenance
5.14.1 TCUMCMandPCM‐2SoftwareUploads
TCUMCMandPCM‐2softwareuploadsarecoveredinSection3.9.3.4,SoftwareManagement,onpage3‐31.
5.14.2 PanelPCTouchScreenContrast
ThepanelPCGUIscreencontrastisnotadjustable.
Leak
Detector
ReturnSide
DrainHose
SupplySide
DrainHose