Specifications

Section-1 Introduction

November 11, 2013

1‐12

WARNING:Disconnectprimarypowerpriortoservicing. 888‐2628‐300

1.2.9.1 CoolingSystemControlPanel

Thecoolingsystemcontrolpanelcontrolstheoperationofthepumpmodule/heatexchanger,andsendsfaultand

statusinformationtotheTCU.ThecoolingsystemcontrolcableconnectsthecontrolpaneltocustomerI/Opanelon

thetopofthetransmittercabinet.

Thepumpcontrolsignalsaredescribedintheexternalwiringdiagram843‐5601‐705,andintheHEpumpmodule

technicalmanual888‐2625‐001.

Figure 1-12 HE Cooling Control Panel

1.2.9.2 PumpModule/HeatExchanger

Thecontrolpanel/pumpmoduleandheatexchangerareseparatemodularunits.Thecontrolpanel/pumpmoduleis

self‐containedinonerackandincludesinvertercontrollers,anexpansiontank,airpurger/vent,pressuregauges,

pressurereliefvalve,strainer,anddualpumpsoperatinginmain/standbymode.Thecontrolpanel/pumpmoduleis

designedforindoor

operation(somepreviousmodelsweresuitableforoutdooruse).Thepumpmoduleandcontrol

panelshouldbelocatednearthetransmitterifpossible.Theheatexchangerassemblyisdesignedforoutdoor

mounting.