Trane RT-SVX19A-E4 manual System failure, Heating Failure, Cooling Failure, Service Failure

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Maintenance

Below is the complete listing of failure indication causes:

System failure

Check the voltage between terminals 6 and 9 on J6, it should read approximately 32 VDC. If no voltage is present, a system failure has occurred. Refer to Step 4 in the previous section for the recommended troubleshooting procedure.

Heating Failure

Verify Heat Failure by Ignition Module (IGN) LED indicator:

OFF: No Power or Failure

ON: Normal

Slow Flash: Normal, Heat Call

Fast Flash: Error Code:

1Flash: Communication Failure

2Flashes: System Lockout

3Flashes: Pressure Switch Fail

4Flashes TC01 or TC02 Open

5Flashes: Flame w/o Gas Valve

6Flashes: Flame Rollout Open

Cooling Failure

1.Cooling and heating set point (slide pot) on the zone sensor has failed. Refer to the "Zone Sensor Test Procedure" section.

2.Zone temperature thermistor ZTEMP on ZTS failed. Refer to the "Zone Sensor Test Procedure" section.

3.CC1 or CC2 24 VAC control circuit has opened, check CC1 & CC2 coils, and any of the controls below that apply to the unit (HPC1, HPC2).

4.LPC1 has opened during the

3 minute minimum "on time" during 4 consecutive compressor starts, check LPC1 or LPC2 by testing voltage between the J1-8 & J3-2 terminals on the RTRM and ground. If 24 VAC is present, the LPC's has not tripped. If no voltage is present, LPC's has tripped.

Service Failure

1.If the supply fan proving switch has closed, the unit will not operate (when connected to RTOM), check the fan motor, belts, and proving switch.

2.Clogged filter switch has closed, check the filters.

Simultaneous Heat and Cool Failure

1. Emergency Stop is activated

Method 2

The second method for determining system status is done by checking voltage readings at the RTRM (J6).

The system indication descriptions and the approximate voltages are listed below.

System Failure

Measure the voltage between terminals J6-9 & J6-6.

Normal Operation = approximately 32 VDC

System Failure = less than 1 VDC, approximately 0.75 VDC

Test Mode = voltage alternates between 32 VDC & 0.75 VDC

Heat Failure

Measure the voltage between terminals J6-7 & J6-6.

Heat Operating = approximately 32 VDC

Heat Off = less than 1 VDC, approximately 0.75 VDC

Heating Failure = voltage alternates between 32 VDC & 0.75 VDC

Cool Failure

Measure the voltage between terminals J6-8 & J6-6.

Cool Operating = approximately 32 VDC

Cool Off = less than 1 VDC, approximately 0.75 VDC

Cooling Failure = voltage alternates between 32 VDC & 0.75 VDC

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Contents Installation Operation Maintenance Foreword Safety recommendationsReception Reception in France onlyMaintenance contract WarrantyRefrigerant StorageContents Unit Options Rooftop unit Reception of unitsUnit handling Sling lengths and maximum unit weight Roof curb Installation TKD-WKD-YKD accessoriesUnit size Minimum clearances Minimum clearances mm Dimensions/Weights/ClearancesWeigths & center of gravity Figure Weights of Options & accessoriesInstalling the unit on the ground Installing the unitUnit mounting on roof Connection of duct network Downflow discharge units TKD,WKD,YKD Using the rooftop curbHorizontal discharge units TKH,WKH,YKH Condensate drain line connection Condensate drain pipingGas leak check procedure Gas pipework installationGas burner models UnitFilter arrangement Filter installationMotor sheave / Fan speed Supply fan adjustmentFan Speed RPM Standard Drive To decrease airflow To increase airflowTo increase belt tension Belt tensioningComponent air pressure drops YKD/YKH Pressure drop through accessoriesAirflow EU2/G2 EU4/G4 100% TKD/TKH Pressure drop through accessoriesTKD TKHFilter 100% WKD/WKH Pressure drop through accessoriesWKD WKHYK 155 External static pressure Supply fan performancesYK 175 External static pressure YK 250 External static pressure TK 200 External static pressure TK 175 External static pressureExternal Static Pressure Pa 275 300 TK 250 External static pressure275 300 WK 155 External static pressure Power wiring Factory supplied Disconnect switch OptionElectrical connection TKD/TKH, WKD/WKH units YKD/YKH unitsElectrical Characteristics Unit amps Electrical data YKD/YKH Unit WiringScroll compressors Compressor electrical phasing With Electric heatOutdoor Fan 155 175 200 250 CompressorElectrical data TKD/TKH Supply fan motor 155 200 Compressor155 175 200 250 Indoor Fan Electrical data WKD/WKH Supply fan motor Electrical data YKD/YKH Supply fan motorElectrical data Combustion Blower Motorr Zone sensor wire size and maximum length Control wiringMaximum length Zone sensor wire size Unit controlled by thermostatUnit controlled by Tracker supervisor Unit controlled by BASCO2 sensors SpecificationsWall-mounted and duct-mounted CO2 sensors Wiring the wall-mounted CO2 sensor Power supply requirementsWiring the duct-mounted CO2 sensor CO2 sensor wire sizeMounting the duct-mounted CO2 sensor CO2 sensor maintenanceRemote potentiometer Remote potentiometer dimensionsDuct mounting of fire thermostat Fire thermostatRemote fault relay High temperature safety thermostatClogged filter detector Smoke detectorCommunication Interfaces Hot water coil Hot water coil Installation and connectionDown flow units only Water connection inlet/outlet 1 ¼ ISO R7Soft Starter Electric Heater25% manual fresh air hood 25% fresh air hoodDownflow version Barometric reliefOperation with a conventional thermostat OperationConventional thermostat Gas/ Electric, Electric Heat Thermostat signals are as followsConventional thermostat Heat Pump Cooling/Economizer Operation Unoccupied modeCooling/Economizer Operation with Thermostat1,2 OK toECA board LED Setting the economizer or 0-50% motorized hood optionMinimum fresh air adjustment Power-up initialization Test proceduresTest mode procedure at the ReliaTel control board Auto Test Mode Step Test ModeTest modes StepGas valve Unit start-upGas burner data Marking category of the gas section in different countriesFinal installation checklist Starting the unit in cooling modeCheck torque of power cables contact Operating pressuresEvaporator Fan Operation Cooling without an EconomizerCooling with an Economizer Low Ambient OperationEconomizer Set-Up Potentiometer SettingReliaTel Control Heating Operation Ignition ModuleDiagnostics Final installation checklistLED status Air filters End user routine maintenanceRefrigerant charge Condenser coil Service technician maintenanceHot water coil option System Status Checkout Procedure TroubleshootingSystem failure Service FailureHeating Failure Cooling FailureZone Temperature Sensor ZTS Service Indicator Resetting Cooling and Ignition LockoutsClogged Filter Switch Fan Failure SwitchThermistor Resistance / Temperature Chart Temperature/resistance coefficient is negativeLiterature order number

RT-SVX19A-E4 specifications

The Trane RT-SVX19A-E4 is a groundbreaking rooftop unit designed for versatile commercial heating and cooling applications. This model stands out for its innovative technology and robust features, making it a preferred choice for many businesses seeking efficient climate control solutions.

One of the primary characteristics of the RT-SVX19A-E4 is its exceptional energy efficiency. It utilizes advanced variable-speed technology, allowing it to adjust the compressor's output based on real-time demand. This not only reduces energy consumption significantly but also provides more accurate temperature control, enhancing overall comfort within the space. The unit is designed with high-efficiency fan motors and optimized heat exchangers, which contribute to its impressive Seasonal Energy Efficiency Ratio (SEER) and Energy Efficiency Ratio (EER) ratings.

The Trane RT-SVX19A-E4 also features a robust and durable design, built to withstand a variety of weather conditions. Its all-weather cabinet protects the internal components from environmental stresses, ensuring longevity and reliable performance. The unit is equipped with corrosion-resistant materials that enhance its durability, making it suitable for both coastal and urban environments.

Another notable feature is its advanced control system. The RT-SVX19A-E4 comes with Trane's IntelliPak controls, which provide users with precise monitoring and management capabilities. This smart control system enables remote access via internet connectivity, allowing facility managers to monitor performance, adjust settings, and diagnose issues in real-time, improving operational efficiency and reducing maintenance costs.

Additionally, the RT-SVX19A-E4 offers a range of customization options. It can be tailored to meet specific operational needs, with various configurations available for air flow, heating, and cooling needs. This flexibility ensures organizations can find a solution that best fits their requirements, whether it be for an office building, retail space, or industrial facility.

In conclusion, the Trane RT-SVX19A-E4 represents a significant advancement in rooftop HVAC technology, combining energy efficiency, durability, and intelligent controls. Its ability to adapt to varying demands, coupled with customizable options, makes it an excellent investment for businesses looking to enhance their indoor climate while minimizing energy expenses.
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