Manuals / Trane / Household Appliance / Air Conditioner

Trane RAUC-C25, RAUC-C50, RAUC-C30 manual Installation, Evaporator Water-PressureDrop, SS-SVX09A-EN

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

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Installation

Figure 21. Evaporator Water-Pressure Drop

Note: Factor to convert “Feet of Water” to “Lbs. per Sq. Inch” (PSI): 2.3 Feet of Water = 1 PSI

SS-SVX09A-EN

Page 41

Image 41

Trane RAUC-C25, RAUC-C50, RAUC-C30, RAUC-C60, RAUC-C20, RAUC-C40 Installation, Evaporator Water-PressureDrop, SS-SVX09A-EN

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-ENNote: All water connections are Victaulic InstallationFigure 10. BPHE 25 Evaporator Chiller Dimensions 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-ENInstallation RiggingHeavy Objects Neoprene Isolators Unit IsolationInstallation Heavy ObjectsHeavy Objects Installation Spring IsolatorsLeveling the Unit Compressor Shipping Hardware Shipping FastenersTwo Manifolded Compressors InstallationInstallation General Unit RequirementsRefrigerant Piping Requirements 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 Interconnecting Tubing Liquid Line PipingInstallation SS-SVX09A-EN Evaporator PipingInstallation 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 ExplosionSS-SVX09A-EN Chilled Water PipingInstallation SS-SVX09A-EN InstallationFigure 21. Evaporator Water-PressureDrop 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 NOTICEHazardous Voltage Main Unit Power WiringInstallation 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 VoltageTable 10. DC Conductors Economizer Actuator CircuitInstallation No System Control Temperature Control ParametersInstallation Hazardous VoltageSS-SVX09A-EN InstallationRefer to Wiring Notes on p. 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 InstallationSS-SVX09A-EN InstallationFigure 33. 6RT1 Discharge Air Sensor Assembly Compressor Damage System Pre-StartProceduresEVP Chiller Applications Hazardous VoltageSystem Pre-StartProcedures System Evacuation ProceduresNOTICE NOTICEFigure 34. Typical Vacuum Pump Hookup Standing Vacuum TestSystem Pre-StartProcedures Figure 35. Evacuation Time vs. Pressure Rise System Pre-StartProceduresHazardous Voltage 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 VoltageHazardous Voltage EVP Chiller Control Checkout Honeywell W7100GSystem Pre-StartProcedures 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 VoltageSystem Pre-StartProcedures Zone Thermostat Checkout Honeywell T7067Switch 1S1 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 SequenceFigure 42. W7100G Staging Sequence Condenser FansSystem Start-Up Compressor Crankcase Heaters Low Ambient DampersPump Down System Start-UpHot Gas Bypass Operation Live Electrical ComponentsSystem Start-Up Low Ambient Thermostats 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-ENSS-SVX09A-EN System Start-UpFigure 47. 20 Ton Pressure Curve SS-SVX09A-EN System Start-UpFigure 48. 25 Ton Pressure Curve SS-SVX09A-EN System Start-UpFigure 49. 30Ton Pressure Curve SS-SVX09A-EN System Start-UpFigure 50. 40 Ton Pressure Curve per Circuit SS-SVX09A-EN System Start-UpFigure 51. 50 Ton Pressure Curve per Circuit SS-SVX09A-EN System Start-UpFigure 52. 60 Ton Pressure Curve per Circuit Table 17. Recommended Operating Setpoints Final System SetupSystem Start-Up SS-SVX09A-EN Table 18. Sample Maintenance LogSystem Start-Up 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 CLAUSENumerics SymbolsIndex Index SS-SVX09A-EN Literature Order NumberDate June