Trane RT-SVX19A-E4 manual Unoccupied mode, Cooling/Economizer Operation, OK to, Request

Page 46

Operation

Unoccupied mode:

If the thermostat being used is programmable, it will have its own strategy for unoccupied mode and will control the unit directly. If a mechanical thermostat is being used, a field applied time clock with relay contacts connected to J6-11 and J6-12 can initiate an unoccupied mode as follows:

Contacts open: Normal occupied operation.

Contacts closed: Unoccupied operation as follows - Fan in auto mode regardless of fan switch position. Economizer closes except while economizing regardless of minimum position setting.

Cooling/Economizer Operation:

If unit does not have an economizer, the Cool/Econ Stage 1 and Stage 2 will call directly for mechanical cooling (compressor) stages. If the unit has an economizer, the Cool/Econ stages will function as follows.

Table 34 - Cooling/Economizer Operation with Thermostat1,2

OK to

Thermostat Thermostat

Call for Economizer

Compressor Staging

Economize?

Y1

Y2

Cooling

Request

 

 

 

 

 

No

On

Off

Inactive

Compressor Output 1

No

Off

On

Inactive

Compressor Output 2

No

On

On

Inactive

Compressor

Outputs 1 & 2

 

 

 

 

Yes

On

Off

Active

Off

Yes

Off

On

Active

Compressor off

Yes

On

On

Active

Compessor

 

 

 

 

 

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RT-SVX19A-E4

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Contents Installation Operation Maintenance Reception Safety recommendationsForeword Reception in France onlyRefrigerant WarrantyMaintenance contract StorageContents Unit Options Rooftop unit Reception of unitsUnit handling Sling lengths and maximum unit weight Roof curb Installation TKD-WKD-YKD accessoriesUnit size Dimensions/Weights/Clearances Minimum clearances Minimum clearances mmWeights of Options & accessories Weigths & center of gravity FigureInstalling 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 piping Condensate drain line connectionGas burner models Gas pipework installationGas leak check procedure UnitFilter installation Filter arrangementMotor sheave / Fan speed Supply fan adjustmentFan Speed RPM Standard Drive 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 pressureExternal Static Pressure Pa 275 300 TK 250 External static pressure275 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 FanElectrical 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 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 supervisorCO2 sensors SpecificationsWall-mounted and duct-mounted CO2 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 Gas/ Electric, Electric Heat Thermostat signals are as followsConventional thermostat Heat Pump 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 Power-up initialization Test proceduresTest mode procedure at the ReliaTel control board 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 ModuleDiagnostics Final installation checklistLED status Air filters End user routine maintenanceRefrigerant charge Condenser coil Service technician maintenanceHot water coil option 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

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.