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Trane RAUC-C50 Chilled Water Temperature Sensor Honeywell 6RT2, Ground Wire, Grounding Required

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

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Chilled Water Temperature Sensor (Honeywell 6RT2)

Installation

Figure 28. EVP Chiller Remote Panel

Chilled Water Temperature Sensor (Honeywell 6RT2)

With the sensor installed in its proper location within the chilled water piping (Figure 18), connect shielded cable (Belden 8760 or equivalent) from the sensor leads to the leads inside the remote panel. Refer to Figure 28 for the electrical access into the remote panel and the field connection diagram illustrated in Figure 29 for the final cable termination points.

WARNING

Ground Wire!

All field-installed wiring must be completed by qualified personnel. All field-installed wiring must comply with NEC and applicable local codes. Failure to follow this instruction could result in death or serious injuries.

WARNING

Grounding Required!

Follow proper local and state electrical code on requirements for grounding. Failure to follow code could result in death or serious injury.

Note: Connect the shield ground to the ground screw inside the remote panel. Do not connect both ends of the shield to ground.

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Image 60

Trane RAUC-C50, RAUC-C30 Chilled Water Temperature Sensor Honeywell 6RT2, Ground Wire, Grounding Required, Installation

Contents

June Installation Operation MaintenanceRemote Split System Units Air Cooled Condensing Units and EVP ChillersWarnings, Cautions and Notices Grounding RequiredEnvironmental Concerns Responsible Refrigerant PracticesTable of Contents SS-SVX09A-ENSS-SVX09A-EN General Information Model Number DescriptionUnit Nameplate Compressor NameplateGeneral Information Evaporator NameplateEVP Chiller Applications Only Unit DescriptionInstallation Unit InspectionNo Step Surface Unit ClearancesUnit Dimensions & Weight Information InstallationFoundation NOTICEInstallation SS-SVX09A-ENInstallation SS-SVX09A-ENInstallation SS-SVX09A-ENInstallation SS-SVX09A-ENInstallation SS-SVX09A-ENInstallation SS-SVX09A-ENInstallation SS-SVX09A-ENInstallation Figure 9. BPHE 20 Evaporator Chiller DimensionsNote All water connections are Victaulic SS-SVX09A-ENInstallation Figure 10. BPHE 25 Evaporator Chiller DimensionsNote: All water connections are Victaulic Installation Figure 11. BPHE 30 Evaporator Chiller DimensionsNote: All water connections are Victaulic SS-SVX09A-ENInstallation Note: All water connections are VictaulicSS-SVX09A-EN 13.533Installation Note: All water connections are VictaulicSS-SVX09A-EN 827.2Installation Figure 14. BPHE 60 Evaporator Chiller DimensionsNote: All water connections are Victaulic SS-SVX09A-ENInstallation Typical Unit Weights & Point Loading DataTable SS-SVX09A-ENRigging Heavy ObjectsInstallation Unit Isolation Neoprene IsolatorsInstallation Heavy ObjectsInstallation Spring Isolators Leveling the UnitHeavy Objects Shipping Fasteners Compressor Shipping HardwareTwo Manifolded Compressors InstallationGeneral Unit Requirements Refrigerant Piping RequirementsInstallation Main Electrical Power Requirements Hazard of ExplosionEVP Chilled Water Piping Requirements Hazardous VoltageGround Wire Field Installed Control Wiring Requirements115 Volt Control Wiring All Units ”No Controls” UnitsGround Wire InstallationGrounding Required Figure 17. EVP Chiller PipingLow Voltage Wiring AC & DC Variable Air Volume VAV UnitsConstant Volume Units Refrigerant Line ComponentsLiquid Line Moisture Indicator Sight Glass Access Valves PortsLiquid Line Solenoid Valves Thermostatic Expansion Valve TEVInstallation Split System Component Number DefinitionsRefrigerant Piping Suction Line PipingInstallation Suction Line Interconnecting TubingLiquid Line Piping InstallationLiquid Line Interconnecting Tubing Evaporator Piping InstallationSS-SVX09A-EN Optional Pressure Gauges Final Refrigerant Pipe ConnectionsInstallation SS-SVX09A-ENBrazing Procedures Hazard of Explosion and Deadly GasesInstallation Hazard of ExplosionLeak Testing Procedure InstallationHazard of Explosion Hazard of ExplosionChilled Water Piping InstallationSS-SVX09A-EN Installation Figure 21. Evaporator Water-PressureDropSS-SVX09A-EN Chiller Flow Switch Water Temperature SensorAir Vents Water Pressure GaugesFreezestat InstallationNOTICE Figure 22. Typical Piping RecommendationsFinal Water Piping Connections InstallationNOTICE NOTICEField Installed Power Wiring InstallationNOTICE NOTICEMain Unit Power Wiring InstallationHazardous Voltage Power Wire Sizing and Protection Device EquationsCalculation #1 MCA, MOP, and RDE InstallationInstallation Calculation #2 Disconnect Switch Sizing DSSTable 8. Electrical Service Sizing Data SS-SVX09A-ENField Installed Control Wiring Controls Using 115 VACInstallation Hazardous VoltageSupply Fan Interlock Control options utilizing an Air HandlerEVP Interlocks EVP Flow control 6S58 EVP Circulating Pump InterlockControls using 24 VAC Controls using DC Analog Input/OutputsInstallation Hazardous VoltageEconomizer Actuator Circuit InstallationTable 10. DC Conductors Temperature Control Parameters No System ControlInstallation Hazardous VoltageInstallation Refer to Wiring Notes on p.SS-SVX09A-EN Installation SS-SVX09A-ENVariable Air Volume Control Honeywell W7100A Discharge Air Sensor Honeywell 6RT3Ground Wire InstallationSuction Line Thermostat Night SetbackInstallation Hazardous VoltageEVP Chiller Control InstallationW7100G Discharge Chilled Water Controller Ground WireInstallation Grounding RequiredChilled Water Temperature Sensor Honeywell 6RT2 Ground WireInstallation Grounding RequiredOutside Air Thermostat 5S57 Field Provided InstallationHazardous Voltage SS-SVX09A-ENInstallation SS-SVX09A-ENConstant Volume Control Honeywell Thermostat WiringElectronic Zone Thermostat Honeywell T7067 Thermostat CheckoutInstallation SS-SVX09A-ENDischarge Air Sensor Honeywell 6RT1 InstallationTable 11. Q667 Switching Subbase Hazardous VoltageInstallation SS-SVX09A-ENInstallation Figure 33. 6RT1 Discharge Air Sensor AssemblySS-SVX09A-EN System Pre-StartProcedures Compressor DamageEVP Chiller Applications Hazardous VoltageSystem Evacuation Procedures System Pre-StartProceduresNOTICE NOTICEStanding Vacuum Test System Pre-StartProceduresFigure 34. Typical Vacuum Pump Hookup System Pre-StartProcedures Hazardous VoltageFigure 35. Evacuation Time vs. Pressure Rise System Pre-StartProcedures SS-SVX09A-ENSystem Pre-StartProcedures Figure 36. W7100A Discharge Air ControllerDischarge Air Sensor Checkout Honeywell Sensor Economizer Actuator CheckoutSystem Pre-StartProcedures Hazardous VoltageEVP Chiller Control Checkout Honeywell W7100G System Pre-StartProceduresHazardous Voltage System Pre-StartProcedures Chilled Water Sensor Checkout Honeywell Sensor System Pre-StartProceduresHazardous Voltage Figure 38. W7100G Chilled Water ControllerSwitch 1S1 Master Energy Control CheckoutSystem Pre-StartProcedures Hazardous VoltageZone Thermostat Checkout Honeywell T7067 Switch 1S1System Pre-StartProcedures Discharge Air Sensor Checkout Honeywell 6RT1 System Pre-StartProceduresHazardous Voltage SS-SVX09A-ENSystem Pre-StartProcedures Temperature - Degree F COhms ResistanceVoltage Imbalance Electrical PhasingSwitch 1S1 System Pre-StartProceduresSystem Start-Up Sequence of OperationVAV W7100A Discharge Air Controller 7U11 Economizer CycleChilled Water Temperature Controller 6U11 System Start-UpThermostatic Expansion Valve Figure 41. W7100A Staging SequenceCondenser Fans System Start-UpFigure 42. W7100G Staging Sequence Low Ambient Dampers Compressor Crankcase HeatersPump Down System Start-UpLive Electrical Components System Start-Up Low Ambient ThermostatsHot Gas Bypass Operation Freezestat Setting EVP Chiller ApplicationsSystem Start-Up Water“Air Over” Evaporator Application Rotating ComponentsSystem Airflow Measurement Verifying Proper Supply Fan RotationCompressor Start-UpAll Systems Compressor DamageNOTICE System Start-UpLive Electrical Components Rotating ComponentsNOTICE System Start-UpSubcooling Measuring SubcoolingMeasuring Superheat System Start-UpCompressor Oil Table 13. Pressure Control Switch SettingsTable 15. Minimum starting Ambient Temperature System Start-UpTable 15. Minimum starting Ambient Temperature System Start-UpTable 16. Compressor Sequence SS-SVX09A-ENSystem Start-Up Figure 45. Typical Compressor LocationsFigure 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 Service & Maintenance Scroll Compressor ReplacementCompressor Operational Sounds At ShutdownService & Maintenance Figure 53. Suction Line Filter/Drier InstallationTable 19. Compressor Circuit Breaker Data SS-SVX09A-ENFuse Replacement Data Monthly MaintenanceAir Handling Equipment Service & MaintenanceCoil Cleaning Condensing UnitService & Maintenance Rotating ComponentsHazardous Pressures System operationService & Maintenance Live Electrical ComponentsWARRANTY AND LIABILITY CLAUSE ACCESSORIESSymbols IndexNumerics Index Literature Order Number SS-SVX09A-ENDate June