Manuals / Trane / Household Appliance / Air Conditioner

Trane RAUC-C20, RAUC-C50 System Pre-StartProcedures, Ohms, Resistance, Temperature - Degree F C

Models: RAUC-C20 RAUC-C40 RAUC-C25 RAUC-C30 RAUC-C60 RAUC-C50

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System Pre-Start Procedures

Figure 39. 6RT1 Discharge Duct Sensor “Temperature vs Resistance” Curve

	4800
	4600
	4400
	4200
(Ohms)	4000
	3800
	3600
	3400					3000 Ohms @
Resistance	3400					3000 Ohms @
	3200					77O F (25O C)
	3000
	2800
	2600
	2400
	2400
	2200
	2000
	1800
	1600
	55	60	65	70	75	80	85	90	95	100	105
		(16oC)	(18oC) (21oC) (24oC) (27oC) (29oC) (32oC) (35oC)

Temperature - Degree F (C)

Figure 40. W973 Master Energy Controller (MEC)

SS-SVX09A-EN

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Trane RAUC-C20, RAUC-C50, RAUC-C30, RAUC-C60, RAUC-C40 System Pre-StartProcedures, Ohms, Resistance, Temperature - Degree F C

Contents

Installation Operation Maintenance JuneRemote Split System Units Air Cooled Condensing Units and EVP ChillersGrounding Required Warnings, Cautions and NoticesEnvironmental Concerns Responsible Refrigerant PracticesSS-SVX09A-EN Table of ContentsSS-SVX09A-EN Model Number Description General InformationUnit Nameplate Compressor NameplateEvaporator Nameplate General InformationEVP Chiller Applications Only Unit DescriptionUnit Inspection InstallationNo Step Surface Unit ClearancesInstallation Unit Dimensions & Weight InformationFoundation NOTICESS-SVX09A-EN InstallationSS-SVX09A-EN InstallationSS-SVX09A-EN InstallationSS-SVX09A-EN InstallationSS-SVX09A-EN InstallationSS-SVX09A-EN InstallationSS-SVX09A-EN InstallationFigure 9. BPHE 20 Evaporator Chiller Dimensions InstallationNote All water connections are Victaulic SS-SVX09A-ENInstallation Figure 10. BPHE 25 Evaporator Chiller DimensionsNote: All water connections are Victaulic Figure 11. BPHE 30 Evaporator Chiller Dimensions InstallationNote: All water connections are Victaulic SS-SVX09A-ENNote: All water connections are Victaulic InstallationSS-SVX09A-EN 13.533Note: All water connections are Victaulic InstallationSS-SVX09A-EN 827.2Figure 14. BPHE 60 Evaporator Chiller Dimensions InstallationNote: All water connections are Victaulic SS-SVX09A-ENTypical Unit Weights & Point Loading Data InstallationTable SS-SVX09A-ENRigging Heavy ObjectsInstallation Neoprene Isolators Unit IsolationInstallation Heavy ObjectsInstallation Spring Isolators Leveling the UnitHeavy Objects Compressor Shipping Hardware Shipping FastenersTwo Manifolded Compressors InstallationGeneral Unit Requirements Refrigerant Piping RequirementsInstallation Hazard of Explosion Main Electrical Power RequirementsEVP Chilled Water Piping Requirements Hazardous VoltageField Installed Control Wiring Requirements Ground Wire115 Volt Control Wiring All Units ”No Controls” UnitsInstallation Ground WireGrounding Required Figure 17. EVP Chiller PipingVariable Air Volume VAV Units Low Voltage Wiring AC & DCConstant Volume Units Refrigerant Line ComponentsAccess Valves Ports Liquid Line Moisture Indicator Sight GlassLiquid Line Solenoid Valves Thermostatic Expansion Valve TEVSplit System Component Number Definitions InstallationSuction Line Piping Refrigerant PipingInstallation Suction Line Interconnecting TubingLiquid Line Piping InstallationLiquid Line Interconnecting Tubing Evaporator Piping InstallationSS-SVX09A-EN Final Refrigerant Pipe Connections Optional Pressure GaugesInstallation SS-SVX09A-ENHazard of Explosion and Deadly Gases Brazing ProceduresInstallation Hazard of ExplosionInstallation Leak Testing ProcedureHazard of Explosion Hazard of ExplosionChilled Water Piping InstallationSS-SVX09A-EN Installation Figure 21. Evaporator Water-PressureDropSS-SVX09A-EN Water Temperature Sensor Chiller Flow SwitchAir Vents Water Pressure GaugesInstallation FreezestatNOTICE Figure 22. Typical Piping RecommendationsInstallation Final Water Piping ConnectionsNOTICE NOTICEInstallation Field Installed Power WiringNOTICE NOTICEMain Unit Power Wiring InstallationHazardous Voltage Equations Power Wire Sizing and Protection DeviceCalculation #1 MCA, MOP, and RDE InstallationDisconnect Switch Sizing DSS Installation Calculation #2Table 8. Electrical Service Sizing Data SS-SVX09A-ENControls Using 115 VAC Field Installed Control WiringInstallation Hazardous VoltageControl options utilizing an Air Handler Supply Fan InterlockEVP Interlocks EVP Flow control 6S58 EVP Circulating Pump InterlockControls using DC Analog Input/Outputs Controls using 24 VACInstallation Hazardous VoltageEconomizer Actuator Circuit InstallationTable 10. DC Conductors No System Control Temperature Control ParametersInstallation Hazardous VoltageInstallation Refer to Wiring Notes on p.SS-SVX09A-EN SS-SVX09A-EN InstallationDischarge Air Sensor Honeywell 6RT3 Variable Air Volume Control Honeywell W7100AGround Wire InstallationNight Setback Suction Line ThermostatInstallation Hazardous VoltageInstallation EVP Chiller ControlGround Wire W7100G Discharge Chilled Water ControllerInstallation Grounding RequiredGround Wire Chilled Water Temperature Sensor Honeywell 6RT2Installation Grounding RequiredInstallation Outside Air Thermostat 5S57 Field ProvidedHazardous Voltage SS-SVX09A-ENSS-SVX09A-EN InstallationThermostat Wiring Constant Volume Control HoneywellElectronic Zone Thermostat Honeywell T7067 Thermostat CheckoutSS-SVX09A-EN InstallationInstallation Discharge Air Sensor Honeywell 6RT1Table 11. Q667 Switching Subbase Hazardous VoltageSS-SVX09A-EN InstallationInstallation Figure 33. 6RT1 Discharge Air Sensor AssemblySS-SVX09A-EN Compressor Damage System Pre-StartProceduresEVP Chiller Applications Hazardous VoltageSystem Pre-StartProcedures System Evacuation ProceduresNOTICE NOTICEStanding Vacuum Test System Pre-StartProceduresFigure 34. Typical Vacuum Pump Hookup System Pre-StartProcedures Hazardous VoltageFigure 35. Evacuation Time vs. Pressure Rise SS-SVX09A-EN System Pre-StartProceduresFigure 36. W7100A Discharge Air Controller System Pre-StartProceduresEconomizer Actuator Checkout Discharge Air Sensor Checkout Honeywell SensorSystem Pre-StartProcedures Hazardous VoltageEVP Chiller Control Checkout Honeywell W7100G System Pre-StartProceduresHazardous Voltage System Pre-StartProcedures System Pre-StartProcedures Chilled Water Sensor Checkout Honeywell SensorHazardous Voltage Figure 38. W7100G Chilled Water ControllerMaster Energy Control Checkout Switch 1S1System Pre-StartProcedures Hazardous VoltageZone Thermostat Checkout Honeywell T7067 Switch 1S1System Pre-StartProcedures System Pre-StartProcedures Discharge Air Sensor Checkout Honeywell 6RT1Hazardous Voltage SS-SVX09A-ENTemperature - Degree F C System Pre-StartProceduresOhms ResistanceElectrical Phasing Voltage ImbalanceSwitch 1S1 System Pre-StartProceduresSequence of Operation System Start-UpVAV W7100A Discharge Air Controller 7U11 Economizer CycleSystem Start-Up Chilled Water Temperature Controller 6U11Thermostatic Expansion Valve Figure 41. W7100A Staging SequenceCondenser Fans System Start-UpFigure 42. W7100G Staging Sequence Compressor Crankcase Heaters Low Ambient DampersPump Down System Start-UpLive Electrical Components System Start-Up Low Ambient ThermostatsHot Gas Bypass Operation EVP Chiller Applications Freezestat SettingSystem Start-Up WaterRotating Components “Air Over” Evaporator ApplicationSystem Airflow Measurement Verifying Proper Supply Fan RotationCompressor Damage Compressor Start-UpAll SystemsNOTICE System Start-UpRotating Components Live Electrical ComponentsNOTICE System Start-UpMeasuring Subcooling SubcoolingMeasuring Superheat System Start-UpTable 13. Pressure Control Switch Settings Compressor OilTable 15. Minimum starting Ambient Temperature System Start-UpSystem Start-Up Table 15. Minimum starting Ambient TemperatureTable 16. Compressor Sequence SS-SVX09A-ENFigure 45. Typical Compressor Locations System Start-UpFigure 46. Typical Compressor Terminal Block SS-SVX09A-ENSystem Start-Up Figure 47. 20 Ton Pressure CurveSS-SVX09A-EN System Start-Up Figure 48. 25 Ton Pressure CurveSS-SVX09A-EN System Start-Up Figure 49. 30Ton Pressure CurveSS-SVX09A-EN System Start-Up Figure 50. 40 Ton Pressure Curve per CircuitSS-SVX09A-EN System Start-Up Figure 51. 50 Ton Pressure Curve per CircuitSS-SVX09A-EN System Start-Up Figure 52. 60 Ton Pressure Curve per CircuitSS-SVX09A-EN Final System Setup System Start-UpTable 17. Recommended Operating Setpoints Table 18. Sample Maintenance Log System Start-UpSS-SVX09A-EN Scroll Compressor Replacement Service & MaintenanceCompressor Operational Sounds At ShutdownFigure 53. Suction Line Filter/Drier Installation Service & MaintenanceTable 19. Compressor Circuit Breaker Data SS-SVX09A-ENMonthly Maintenance Fuse Replacement DataAir Handling Equipment Service & MaintenanceCondensing Unit Coil CleaningService & Maintenance Rotating ComponentsSystem operation Hazardous PressuresService & Maintenance Live Electrical ComponentsACCESSORIES WARRANTY AND LIABILITY CLAUSESymbols IndexNumerics Index SS-SVX09A-EN Literature Order NumberDate June

(Ohms)

Resistance

Temperature - Degree F (C)