Trane RT-SVX19A-E4 Electrical connection, TKD/TKH, WKD/WKH units YKD/YKH units, Power wiring

Page 26

Installation

Figure 10 - Power supply

TKD/TKH, WKD/WKH units:

YKD/YKH units:

Electrical connection

The electric panel is located in the unit compressor section. Remove the compressor access panel. The unit is designed to run with 400 V +/- 5%/50 Hz/ 3 ph.

Factory supplied Disconnect switch (Option)

The disconnect switch is factory mounted. It is located on the side of the Electrical panel and equipped with fuses as standard.

Over current protection

The branch circuit feeding the unit must be protected in accordance with national or local codes and max unit amps indicated in Table 21 to 28.

Power wiring

The unit power supply must be provided by 4-wire cable with cross- sectional areas complying with legislation.

The power supply cables must be laid in leak-tight pipes and pass through the bottom of the electric panel. The cables must not be taut.

Appropriate connectors must be provided. Flexible pipe supports are required to prevent noise transmission in the building structure. Ensure all the connections are tightened.

Note:

1.earthing must be executed in accordance with local legislation.

2.the machines are designed for a short-circuit current of 10 kA. In the event of a higher application, contact your Trane sales office.

1 = Power supply from the bottom or from the side.

26

RT-SVX19A-E4

Image 26 Contents
Installation Operation Maintenance Reception Safety recommendationsForeword Reception in France onlyRefrigerant WarrantyMaintenance contract StorageContents Unit Options Unit handling Reception of unitsRooftop unit Unit size Roof curb Installation TKD-WKD-YKD accessoriesSling lengths and maximum unit weight Dimensions/Weights/Clearances Minimum clearances Minimum clearances mmWeights of Options & accessories Weigths & center of gravity FigureUnit mounting on roof Installing the unitInstalling the unit on the ground Horizontal discharge units TKH,WKH,YKH Downflow discharge units TKD,WKD,YKD Using the rooftop curbConnection of duct network Condensate drain piping Condensate drain line connectionGas burner models Gas pipework installationGas leak check procedure UnitFilter installation Filter arrangementFan Speed RPM Standard Drive Supply fan adjustmentMotor sheave / Fan speed To increase belt tension To increase airflowTo decrease airflow Belt tensioningYKD/YKH Pressure drop through accessories Component air pressure dropsTKD TKD/TKH Pressure drop through accessoriesAirflow EU2/G2 EU4/G4 100% TKHWKD WKD/WKH Pressure drop through accessoriesFilter 100% WKHSupply fan performances YK 155 External static pressureYK 175 External static pressure YK 250 External static pressure TK 175 External static pressure TK 200 External static pressure275 300 TK 250 External static pressureExternal Static Pressure Pa 275 300 WK 155 External static pressure Electrical connection Factory supplied Disconnect switch OptionPower wiring TKD/TKH, WKD/WKH units YKD/YKH unitsScroll compressors Compressor electrical phasing Electrical data YKD/YKH Unit WiringElectrical Characteristics Unit amps With Electric heat155 175 200 250 Compressor Outdoor Fan155 175 200 250 Indoor Fan 155 200 CompressorElectrical data TKD/TKH Supply fan motor Electrical data Combustion Blower Motorr Electrical data YKD/YKH Supply fan motorElectrical data WKD/WKH Supply fan motor Maximum length Zone sensor wire size Control wiringZone sensor wire size and maximum length Unit controlled by thermostatUnit controlled by BAS Unit controlled by Tracker supervisorWall-mounted and duct-mounted CO2 sensors SpecificationsCO2 sensors Wiring the duct-mounted CO2 sensor Power supply requirementsWiring the wall-mounted CO2 sensor CO2 sensor wire sizeCO2 sensor maintenance Mounting the duct-mounted CO2 sensorRemote potentiometer dimensions Remote potentiometerFire thermostat Duct mounting of fire thermostatClogged filter detector High temperature safety thermostatRemote fault relay Smoke detectorCommunication Interfaces Down flow units only Hot water coil Installation and connectionHot water coil Water connection inlet/outlet 1 ¼ ISO R7Electric Heater Soft Starter25% fresh air hood 25% manual fresh air hoodBarometric relief Downflow versionOperation Operation with a conventional thermostatConventional thermostat Heat Pump Thermostat signals are as followsConventional thermostat Gas/ Electric, Electric Heat Cooling/Economizer Operation with Thermostat1,2 Unoccupied modeCooling/Economizer Operation OK toSetting the economizer or 0-50% motorized hood option ECA board LEDMinimum fresh air adjustment Test mode procedure at the ReliaTel control board Test proceduresPower-up initialization Test modes Step Test ModeAuto Test Mode StepUnit start-up Gas valveMarking category of the gas section in different countries Gas burner dataCheck torque of power cables contact Starting the unit in cooling modeFinal installation checklist Operating pressuresCooling without an Economizer Evaporator Fan OperationLow Ambient Operation Cooling with an EconomizerReliaTel Control Heating Operation Potentiometer SettingEconomizer Set-Up Ignition ModuleLED status Final installation checklistDiagnostics Refrigerant charge End user routine maintenanceAir filters Hot water coil option Service technician maintenanceCondenser coil Troubleshooting System Status Checkout ProcedureHeating Failure Service FailureSystem failure Cooling FailureClogged Filter Switch Resetting Cooling and Ignition LockoutsZone Temperature Sensor ZTS Service Indicator Fan Failure SwitchTemperature/resistance coefficient is negative Thermistor Resistance / Temperature ChartLiterature order number