Trane RT-SVX19A-E4 manual Remote potentiometer dimensions

Page 36

Controls

Remote potentiometer

To install the remote potentiometer, cut the jumper WL on the economizer ECA board, and connect the wires to P and P1.

Note: This potentiometer allows to adjust the permanent fresh air intake from 0 to 50%.

0 W corresponds to closed fresh air damper.

270 W corresponds to 50% open fresh air damper.

Note: This potentiometer allows to adjust the permanent fresh air intake from 0 to 50%.

0 W corresponds to closed fresh air damper.

270 W corresponds to 50% open fresh air damper.

Figure 15 - Remote potentiometer dimensions

Figure 16 - Remote potentiometer wiring

P

P

1 = Remote potentiometer

2 = ECA Board WH = White wire RD = Red Wire BU = Blue wire

_____ Factory wiring

-------- Field wiring

36	RT-SVX19A-E4

Image 36

Contents

Installation Operation Maintenance Safety recommendations ForewordReception Reception in France onlyWarranty Maintenance contractRefrigerant StorageContents Unit Options Reception of units Rooftop unitUnit handling Roof curb Installation TKD-WKD-YKD accessories Sling lengths and maximum unit weightUnit size Dimensions/Weights/Clearances Minimum clearances Minimum clearances mmWeights of Options & accessories Weigths & center of gravity FigureInstalling the unit Installing the unit on the groundUnit mounting on roof Downflow discharge units TKD,WKD,YKD Using the rooftop curb Connection of duct networkHorizontal discharge units TKH,WKH,YKH Condensate drain piping Condensate drain line connectionGas pipework installation Gas leak check procedureGas burner models UnitFilter installation Filter arrangementSupply fan adjustment Motor sheave / Fan speedFan Speed RPM Standard Drive To increase airflow To decrease airflowTo increase belt tension Belt tensioningYKD/YKH Pressure drop through accessories Component air pressure dropsTKD/TKH Pressure drop through accessories Airflow EU2/G2 EU4/G4 100%TKD TKHWKD/WKH Pressure drop through accessories Filter 100%WKD 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 pressureTK 250 External static pressure External Static Pressure Pa 275 300275 300 WK 155 External static pressure Factory supplied Disconnect switch Option Power wiringElectrical connection TKD/TKH, WKD/WKH units YKD/YKH unitsElectrical data YKD/YKH Unit Wiring Electrical Characteristics Unit ampsScroll compressors Compressor electrical phasing With Electric heat155 175 200 250 Compressor Outdoor Fan155 200 Compressor Electrical data TKD/TKH Supply fan motor155 175 200 250 Indoor Fan Electrical data YKD/YKH Supply fan motor Electrical data WKD/WKH Supply fan motorElectrical data Combustion Blower Motorr Control wiring Zone sensor wire size and maximum lengthMaximum length Zone sensor wire size Unit controlled by thermostat Unit controlled by BAS Unit controlled by Tracker supervisorSpecifications CO2 sensorsWall-mounted and duct-mounted CO2 sensors Power supply requirements Wiring the wall-mounted CO2 sensorWiring the duct-mounted CO2 sensor CO2 sensor wire sizeCO2 sensor maintenance Mounting the duct-mounted CO2 sensorRemote potentiometer dimensions Remote potentiometerFire thermostat Duct mounting of fire thermostatHigh temperature safety thermostat Remote fault relayClogged filter detector Smoke detectorCommunication Interfaces Hot water coil Installation and connection Hot water coilDown flow units only 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 thermostatThermostat signals are as follows Conventional thermostat Gas/ Electric, Electric HeatConventional thermostat Heat Pump Unoccupied mode Cooling/Economizer OperationCooling/Economizer Operation with Thermostat1,2 OK toSetting the economizer or 0-50% motorized hood option ECA board LEDMinimum fresh air adjustment Test procedures Power-up initializationTest mode procedure at the ReliaTel control board Step Test Mode Auto Test ModeTest modes StepUnit start-up Gas valveMarking category of the gas section in different countries Gas burner dataStarting the unit in cooling mode Final installation checklistCheck torque of power cables contact Operating pressuresCooling without an Economizer Evaporator Fan OperationLow Ambient Operation Cooling with an EconomizerPotentiometer Setting Economizer Set-UpReliaTel Control Heating Operation Ignition ModuleFinal installation checklist DiagnosticsLED status End user routine maintenance Air filtersRefrigerant charge Service technician maintenance Condenser coilHot water coil option Troubleshooting System Status Checkout ProcedureService Failure System failureHeating Failure Cooling FailureResetting Cooling and Ignition Lockouts Zone Temperature Sensor ZTS Service IndicatorClogged Filter Switch Fan Failure SwitchTemperature/resistance coefficient is negative Thermistor Resistance / Temperature ChartLiterature order number