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TABLE OF CONTENTS
1.0 SAFETYINFORMATION............................................3
2.0 GENERALINFORMATION..........................................4
2.1 CheckingProductReceived......................................4
2.2 Applications..................................................4
2.3 imensions..................................................5
2.4 ElectricalandPhysical ata .....................................6
3.0 LOCATINGUNIT..................................................6
3.1 CorrosiveEnvironment .........................................6
3.2 HeatPumpLocation ...........................................7
3.3 OperationalIssues.............................................7
3.4 ForUnitsWithSpaceLimitations..................................7
3.5 CustomerSatisfactionIssues ....................................7
3.6 UnitMounting.................................................8
3.7 Factory-Preferred Tie- own Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.0 REFRIGERANTCONNECTIONS ....................................10
5.0 REPLACEMENTUNITS............................................10
6.0 INDOORCOIL...................................................10
6.1 Location....................................................10
7.0 INTERCONNECTINGTUBING......................................11
7.1 Vapor&LiquidLines..........................................11
7.2 MaximumLengthofLines......................................11
7.3 VerticalSeparation ...........................................11
7.4 TubingInstallation............................................11
7.5 TubingConnections...........................................12
7.6 LeakTesting ................................................12
8.0 DEMANDDEFROSTCONTROL.....................................15
8.1 efrostInitiation..............................................15
8.2 efrostTermination...........................................15
8.3 TemperatureSensors.........................................15
8.4 TestMode..................................................16
8.5 emand efrostOperation.....................................16
8.6 Trouble Shooting emand efrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
9.0 EVACUATIONPROCEDURE.......................................16
10.0STARTUP&PERFORMANCE......................................17
11.0CHEC INGAIRFLOW.............................................17
12.0CHEC INGREFRIGERANTCHARGE................................17
12.1 ChargingByLiquidPressure....................................17
12.2 ChargingByWeight...........................................18
12.3 FinalLeakTesting............................................18
13.0ELECTRICALWIRING.............................................18
13.1 PowerWiring................................................18
13.2 Grounding..................................................18
13.3 ControlWiring...............................................19
14.0FIELDINSTALLEDACCESSORIES..................................20
14.1 CompressorCrankcaseHeat....................................20
14.2 LowAmbientControl..........................................20
14.3 HighPressureControl.........................................20
15.0SERVICE.......................................................20
15.1 Single Pole Compressor Contactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
16.0TROUBLESHOOTING.............................................21
16.1 ElectricalChecksFlowChart....................................21
16.2 Cooling Mechanical Checks Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
16.3 Heating Mechanical Checks Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
16.4 efrost Mechanical Checks Flow Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
16.5 SubcoolingCalculation ........................................25
16.6 GeneralTroubleshootingChart..................................26
16.7 ServiceAnalyzerChart........................................27
17.0WIRINGDIAGRAM ...............................................32