Trane RT-SVX19A-E4 manual Troubleshooting, System Status Checkout Procedure

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Maintenance

Troubleshooting

The RTRM has the ability to provide the service personnel with some unit diagnostics and system status information. Before turning the main power disconnect switch "Off", follow the steps below to check the ReliaTel™

Refrigeration Module (RTRM). All diagnostics & system status information stored in the RTRM will be lost when the main power is turned "Off".

1.Verify that the Liteport LED on the RTRM is burning continuously. If the LED is lit, go to Step 3.

2.If the LED is not lit, verify that

24 VAC is present between J1-1 and J1-2. If 24 VAC is present, proceed to Step 3. If 24 VAC is not present, check the unit main power supply, check transformer (TNS1). Proceed to Step 3 if necessary.

3.Utilizing "Method 1" or "Method 2" in the system status diagnostic section, check the following: System status, Heating status, Cooling status. If a System failure is indicated, proceed to Step 4. If no failures are indicated, proceed to Step 5.

4.If a System failure is indicated, recheck Steps 1 and 2. If the LED is not lit in Step 1, and 24 VAC is present in Step 2, the RTRM has failed. Replace the RTRM.

5.If no failures are indicated, use one of the TEST mode procedures described in the unit "Start-Up" section to start the unit. This procedure will allow you to check all of the RTRM outputs, and all of the external controls (relays, contactors, etc.) that the RTRM outputs energize, for each respective mode. Proceed to Step 6.

6.Step the system through all of the available modes, and verify operation of all outputs, controls, and modes. If a problem in operation is noted in any mode, you may leave the system in that mode for up to one hour while troubleshooting. Refer to the sequence of operations for each mode, to assist in verifying proper operation. Make the necessary repairs and proceed to Steps 7 and 8.

7.If no abnormal operating conditions appear in the test mode, exit the test mode by turning the power "Off" at the main power disconnect switch.

8.Refer to the individual component test procedures if other microelectronic components are suspect.

System Status Checkout Procedure

"System Status" is checked by using one of the following two methods:

Method 1

If the Zone Sensor Module (ZSM) is equipped with a remote panel with LED status indication, you can check the unit within the space. If the ZSM does not have LED's, use Method 2.

THS/P03 have the remote panel indication feature. The LED descriptions are listed below:

LED 1 (System) "On" during normal operation. "Off" if a system failure occurs or the LED fails. "Flashing" indicates test mode.

LED 2 (Heat) "On" when the heat cycle is operating. "Off" when the heat cycle terminates or the LED fails. "Flashing" indicates a heating failure.

LED 3 (Cool) "On" when the cooling cycle is operating. "Off" when the cooling cycle terminates or the LED fails. "Flashing" indicates a cooling failure.

LED 4 (Service) "On" indicates a clogged filter. "Off" during normal operation. "Flashing" indicates an supply fan failure.

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RT-SVX19A-E4

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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 thermostatUnit 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

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.