Trane Voyager RT-SVX17C-EN Installation Operation & Maintenance
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Trane Voyager RT-SVX17C-EN Installation Operation & Maintenance

Trane Voyager RT-SVX17C-EN Installation Operation & Maintenance

Commercial 27 1/2 to 50 ton 60 hz commercial 23 to 42 ton 50 hz cv or vav rooftop air conditioners with reliatel controls
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Important! This document is
customer property and must be
retained by the unit's
maintenance personnel.
TM
Voyager
Commercial 27½ to 50 Ton 60 Hz
Commercial 23 to 42 Ton 50 Hz
CV or VAV Rooftop Air Conditioners
with ReliaTel™ Controls
Models
"P" and later Design Sequence
TC*, TE*, YC*330A, 360A, 420A, 480A, 600A (60 Hz/3 phase)
TC*, TE*, YC*275A, 305A, 350A, 400A, 500A (50 Hz/3 phase)
60 Hz units with standard options
are certified by Underwriters Labo-
ratory and the Canadian Standards
Association.
© 2005 American Standard All rights reserved
www.trane.com
Installation
Operation
Maintenance
Library
Product Section
Product
Model
Literature Type
Sequence
Date
File No.
Supersedes
1
RT-SVX17C-EN
Service Literature
Rooftop Air Conditioning (27½ - 50 Tons)
TE*, TC*, & YC*
Installation/Operation/Maintenance
SV-UN-RT-SVX17C-EN 0306
RT-SVX17C-EN 05/05
Unitary
17C
March 2006

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Summary of Contents for Trane Voyager RT-SVX17C-EN

  • Page 1 TC*, TE*, YC*330A, 360A, 420A, 480A, 600A (60 Hz/3 phase) TC*, TE*, YC*275A, 305A, 350A, 400A, 500A (50 Hz/3 phase) 60 Hz units with standard options are certified by Underwriters Labo- ratory and the Canadian Standards Association. © 2005 American Standard All rights reserved www.trane.com...

  • Page 2: Table Of Contents

    Economizer Operation with a Coventional Thermostat At Shutdown: ..............53 ..................30 At Low Ambient Start-Up ..........53 LCI - LonTalk® Communication Interface ....30 During Normal Operation ..........53 TCI - Trane Communication Charging by Subcooling ..........53 Interface (Optional) ............30 System Operation...
  • Page 3 Table of Contents (Continued) Heater Start Up System Troubleshooting Gas Heat Units ............... 54 System Status Checkout ..........63 Electric Heat Units ............54 Method 1 ................ 63 Final Unit Checkout Method 2 ................ 64 For Constant Volume Units; ........54 Resetting Cooling and Ignition Lockout .......
  • Page 4 Figures and Tables Figure 1 Table 1 Unit Dimensions for TC_, TE_, and YC_330, Minimum Operating Clearances for 360 and 420 MBH Units (Low Heat) ........ 8 Unit Installation .............. 13 Figure 1 (Continued) Table 2 Unit Dimensions for YC_330, 360 and Slope Allowances ............
  • Page 5 8 - Power Supply (See Note 1) E = Field-Powered 15A GFI Convenience Outlet C = 380/50/3 F = 230/60/3 F = ICS Control Option - Trane Communication 14 - Supply Fan Drive Selection D = 415/50/3 4 = 460/60/3 (See Note 3 &...

  • Page 6: About This Manual

    = supply air = static pressure transducer It is important that periodic maintenance be performed to = Trane communication interface help assure trouble free operation. A maintenance schedule = temperature cutout is provided at the end of this manual. Should equipment...

  • Page 7: About The Unit

    An optional roof curb, specifically designed for the Voyager Do not use the unit's heater as temporary heat without com- commercial rooftop units is available from Trane. The roof pleting the start-up procedures detailed under "Unit Start- curb kit must be field assembled and installed according to Up".
  • Page 11 Figure 1 (continued) Fresh Air and Power Exhaust Hood Dimensions for TC_, TE_, and YC_ Units Figure 2 Location of Shipwith Items for TC_, TE_, and YC_ Units...

  • Page 12: Installation

    Installation The checklist listed below is a summary of the steps re- [ ] Inspect all control panel components; tighten any loose quired to successfully install a Voyager Commercial rooftop connections. unit. This checklist is intended to acquaint the installing per- sonnel with what is required in the installation process.

  • Page 13: Recommended Clearances

    The S/A and R/A ductwork adjoining the roof curb must be vide access to exhaust fan motors. fabricated and installed by the installing contractor before the unit is set into place. Trane curbs include flanges around the Unit Rigging and Placement openings to accommodate duct attachment.
  • Page 14 Installation (Continued) Table 2 2. Attach adequate strength lifting cables to the lifting lugs Cabinet End to End Side to Side within the base rail. (inches) (inches) Table 3 lists the unit weights and corner weights. To obtain "A" the total unit weight, add the accessory weight listed in Table (27.5 - 35 Ton Low Heat) 3 1/2 1 5/8...
  • Page 15 Figure 4 Unit Rigging Table 3 Unit Weights and Point Loading Weights Basic Unit Weights (1) Variable Frequency Drive Point Loading Unit Average Weight Model Low Heat High Heat W/O Bypass With Bypass **D330 3650 4012 3520 3553 883 481 642 682 481 3650 4077 3565 3598...

  • Page 16: Condensate Drain Connection

    Installation (Continued) Condensate Drain Connection Figure 6 Each commercial rooftop unit is equipped with one (1) 1-1/4 inch Female PVC condensate drain connection. Refer to Figure 2 for the location of the connector. A conden- sate trap must be installed due to the drain connection being on the "negative pressure"...

  • Page 17: Field Installed Gas Piping

    Field Installed Gas Piping General Requirements Note: Gas pressure in excess of 14" w.c. or 0.5 psig will damage the gas train. All internal gas piping for YC* rooftop units are factory in- stalled and leak tested. Once the unit is set into place, a gas Failure to use a pressure regulating device will result in in- supply line must be field installed and connected to the gas correct gas pressures.
  • Page 18 Table 5 Sizing Natural Gas Pipe Mains & Branches Gas Input (Cubic Feet/Hour)* Notes: 1. If more than one unit is served by Gas Supply 1-1/4" 1-1/2" 2" 2-1/2" 3" 4" the same main gas supply, consider Pipe Run (ft) Pipe Pipe Pipe...

  • Page 19: Field Installed Electrical Wiring

    Field Installed Electrical Wiring Disconnect Switch External Handle Note: All field installed wiring must conform to NEC (Factory Mounted Option) guidelines as well as State and Local codes. Units ordered with the factory mounted disconnect switch Verify that the power supply available is compatible with the come equipped with an externally mounted handle.
  • Page 20 Figure 8 Typical Field Power Wiring Table 6 27.5 - 50 Ton Electrical Service Sizing Data (Electric Heaters Only) Electric Heat FLA All FLA's in this table are based on heater operation at 208, 240, 480, and 600 v Nominal Nominal Unit Size Unit...
  • Page 21 Table 6 (Continued) 27.5 - 50 Ton Electrical Service Sizing Data Supply Fan Condenser Exhaust Compressor Std/Hi-Eff Fan Motors Unit Voltage Voltage Model Range No./Size (Ea) (Ea) No. HP (Ea) HP (Ea) 208/60/3 187-229 2/10,15 41.9/62.8 269/409 7.5 22.3/21.5 10 29.7/29.0 TC/TE/ 230/60/3 207-253 41.9/62.8...
  • Page 22 Figure 9 Electrical Wire Sizing and Protection Device Equations To correctly size the main power wiring based on MCA (Minimum Circuit Ampacity), use the appropriate equation listed below. Read the definitions that follow and then use Calculation #1 for determining MCA (Minimum Circuit Ampacity), MOP (Maxi- mum Over current Protection), and RDE (Recommended Dual Element fuse size) for TC (Cooling Only) units and YC (Cooling with Gas Heat) units.

  • Page 23: Low Voltage Wiring

    Ensure that the AC control voltage wiring between the controls and the unit's termination point does not Units equipped with the Trane Communication Interface exceed three (3) ohms/conductor for the length of the (TCI) option which utilizes a serial communication link;...

  • Page 24: Zone Sensor Wiring Requirements

    Figure 10 Typical Field Wiring Requirements for CV Control Options...

  • Page 25: Zone Sensor Thermostat Connections

    Figure 11 Typical Field Wiring Requirements for VAV Control Options Remote Panels and Sensors Table 9-1 RTRM Zone Sensor/Thermostat Connections Constant Volume Control Options The RTRM must have a zone sensor or conventional ther- mostat to operate the rooftop unit. If using a zone sensor, mode capability depends upon the type of sensor and/or re- (CV ONLY) INPUTS...

  • Page 26: Remote Panels And Sensors

    Remote Panels and Sensors Constant Volume Control Options continued Remote Panel W/O NSB (BAYSENS010B) This electronic sensor features four system switch settings (Heat, Cool, Auto, and Off) and two fan settings (On and WARNING Auto) with four system status LED's. It is a manual or auto Hazardous Voltage! changeover control with dual setpoint capability.

  • Page 27: Variable Air Volume Mode Of Operation

    Remote Panels and Sensors (Continued) Variable Air Volume Control Options The following Variable Air Volume controls are available from the factory for field installation The RTRM must have a mode input in order to operate the rooftop unit. The normal mode selection used with a remote Remote Panel with NSB (BAYSENS020*) panel with or without night setback, or ICS is AUTO and OFF.

  • Page 28: Remote Panel W/O Nsb (Baysens021A)

    Table 10 for the Temp vs Resistance coefficient. This electronic sensor features single setpoint capability and timed override with override cancellation. It is used with a Trane Integrated Comfort building management system. Remote Zone Sensor (BAYSENS017B) This electronic sensor can be used with BAYSENS006B, 008B, 010B, 019B, 020B, or 021A Remote Panels.

  • Page 29: Remote Minimum Position Potentiometer (Baystat023A)

    Remote Panels and Sensors (Continued) Table 10 Remote Minimum Position Potentiometer (BAYSTAT023A) Temperature versus Resistance (temperature vs resistance coefficient is negative) This device can be used with units with an economizer. It al- lows the operator to remotely set the position of the econo- Degrees F°...

  • Page 30: Unit Control Modules

    It allows the con- The ECA monitors the mixed air temperature, return air tem- trol and monitoring of the system through a Trane Tracer perature, minimum position setpoint (local or remote), ambi- panel. The module can be ordered from the factory or or- ent dry bulb/enthalpy sensor or comparative humidity (re- dered as a kit to be field installed.

  • Page 31: Reliatel Control Features

    Microelectronic Control Features Economizer Operation with CV Controls The control point for the economizer is designed to control at least 1.5 F below the cooling setpoint or 1.5 F above the 1. Anti short cycle timer (ASCT) function. Compressor op- heating setpoint, whichever produces the highest econo- eration is programmed for 3 minutes of minimum “ON”...

  • Page 32: Mechanical Cooling Without An Economizer

    System Operation (Continued) Table 12 lists the percentages the dampers will open based Zone Temperature - Occupied Cooling (CV only) on these conditions. When the unit is in the cooling mode and the zone tempera- ture raises above the cooling setpoint controlband, the economizer and the compressor stages will be cycled as re- Table 12 quired by the zone sensor, remote panel, or Tracer®.

  • Page 33: Variable Air Volume Applications

    System Operation (Continued) Variable Air Volume Applications from 50 F to 90 F. When the zone temperature meets or exceeds the MWU setpoint, the unit will switch to the "Cool- ing" mode. The economizer will be held closed during the Supply Air Temperature Control - Occupied Cooling morning warm-up cycle.

  • Page 34: Supply Air Temperature Reset

    System Operation (Continued) Supply Air Temperature Reset within the unoccupied setpoint deadband. For VAV systems, The supply air temperature can be reset by using one of the IGV's or VFD's will operate at 100% during this mode. It four DIP switch configurations on the RTAM or through ICS will be necessary to drive VAV boxes to their maximum posi- when a valid supply air reset setpoint with a supply air reset tion through ICS programming or the factory provided VHR...

  • Page 35: Clogged Filter

    System Operation (Continued) Clogged Filter Option compressor(s) will not be allowed to restart for a minimum The unit mounted clogged filter switch monitors the pres- of 3 minutes. sure differential across the return air filters. It is mounted in If four consecutive open conditions occur during the first the filter section and is connected to the RTOM.

  • Page 36: Condenser Fan/Compressor Sequencing Control

    System Operation (Continued) Condenser Fan Sequencing Control The condenser fans are cycled according to the outdoor air Figure 12 shows the condenser fans as viewed from the top temperature and the number of cooling steps that are operat- of the unit facing the control panel. Whenever a condenser ing.

  • Page 37: Unit Start-Up

    Unit Start-Up Be sure to complete all of the procedures described in this [ ] Open the disconnect switch or circuit protector switch that section before starting the unit for the first time. provides the supply power to the unit's power terminal block or to the unit mounted disconnect switch.

  • Page 38: Voltage Imbalance

    Unit Start-Up (Continued) Voltage Imbalance Upon power initialization, the RTRM performs self-diagnos- Excessive voltage imbalance between phases in a three tic checks to insure that all internal controls are functional. It phase system will cause motors to overheat and eventually also checks the configuration parameters against the compo- fail.
  • Page 39 Unit Start-Up (Continued) Figure 13 VAV Test Modes TEST MODE IGV/VFD ECON COMP COMP HEAT HEAT OHMS STEP (Note 7) (Note 6) IGV/VFD TEST OPEN/100% CLOSED 2.2K IGV/VFD TEST CLOSED/OFF CLOSED 3.3K (Note 1) IN MINIMUM MINIMUM VENTILATION CONTROL POSITION 4.7K ECONOMIZER (Note 1) IN...

  • Page 40: Verifying Proper Air Flow (Cfm) (Cv, Igv's Or Vfd's)

    Unit Start-Up (Continued) Verifying Proper Fan Rotation IGV's - With the O/A dampers fully closed, measure the amperage at the supply fan contactor and compare it with the full load amp (FLA) rating stamped on the motor Using the Service Test guide in Figure 13, momentarily jump nameplate.
  • Page 41 Figure 14 Supply Fan Performance Curves 27.5 thru 35 Ton Supply Fan Performance 27-35T 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 24000 26000 Volumetric Airflow Rate(CFM) Figure 14 (Continued) Supply Fan Performance Curves 40 & 50 Ton Supply Fan Performance 40 and 50 Ton 2000 4000...
  • Page 42 Table 17 TC*/YC* 330 Through 600 MBH Economizer (R/A) Damper Pressure Drop Unit Airflow Pressure Unit Airflow Pressure Unit Airflow Pressure Capacity (Cfm) Drop Capacity (Cfm) Drop Capacity (Cfm) Drop 8000 0.035 9000 0.042 10000 0.051 8500 0.038 9500 0.046 10500 0.056 9000...
  • Page 43 Table 18 TC*, TE* & YC* Component Pressure Drops Heating System Filters Nominal Gas Heat Electric Heat ID Coil High Efficiency Inlet Tons Lo Heat Hi Heat 1 Element 2 Element 2" 4" Guide Vanes 8000 0.08 0.06 0.05 0.06 0.04 0.03 0.05...
  • Page 44 Table 19 TC*, TE* & YC* 27.5 through 35 Ton Supply Fan Performance Static Pressure (Inches of Water) 0.25 0.75 1.25 1.75 2.25 CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 8000 1.39 1.85...

  • Page 46: Economizer Damper Adjustment

    Unit Start-Up (Continued) Economizer Damper Adjustment and the return duct losses (static pressure) for Downflow and Horizontal units. Economizer (O/A) Dampers To adjust the O/A damper for the correct pressure drop: Arbitrarily adjusting the outside air dampers to open fully when the return air dampers are fully closed can overload 1.

  • Page 47: Manual Fresh Air Damper

    Figure 15 Economizer (O/A) Damper Assembly 3. Remove the mist eliminator retainer bracket and the mist Manual Fresh Air Damper eliminators from the fresh air hood. Units ordered with the 25% manual fresh air option have two 5. Remove the five (5) screws in the top and bottom of each slidable dampers.

  • Page 48: Starting The Compressors

    Observe the operation of the compressors and the system if a burnout occurred. operating pressures. The scroll compressor uses Trane OIL-42 without substitu- After both compressors have been operating for approxi- tion. The appropriate oil charge for a 9 and 10 Ton scroll mately 30 minutes and all of the condenser fans are "On",...
  • Page 49 Table 23 27.5 through 35 Ton Operating Pressures TC, TE, YC* 330 FULL LOAD 115 F OD 105 F OD 95 F OD Ambient 85 F OD Ambient 75 F OD Ambient 65 F OD Ambient 55 F OD Ambient SUCTION PRESSURE, PSIG TC, TE, YC* 360 FULL LOAD...
  • Page 50 Table 23 (Continued) 27.5 through 35 Ton Operating Pressures TC, TE, YC* 420 FULL LOAD 115 F OD Ambient 105 F OD Ambient 95 F OD Ambient 85 F OD Ambient 75 F OD Ambient 65 F OD Ambient 55 F OD Ambient SUCTION PRESSURE, PSIG...
  • Page 51 Table 24 40 Ton Dual Circuit Operating Pressures TC, TE, YC* 480 Circuit #1 FULL LOAD 115 F OD Ambient 105 F OD Ambient 95 F OD Ambient 85 F OD Ambient 75 F OD Ambient 65 F OD Ambient 55 F OD Ambient SUCTION PRESSURE, PSIG TC, TE, YC* 480 Circuit #2...
  • Page 52 Table 25 50 Ton Dual Circuit Operating Pressures TC, TE, YC* 600 Circuit #1 FULL LOAD 115 F OD Ambient 105 F OD Ambient 95 F OD Ambient 85 F OD Ambient 75 F OD Ambient 65 F OD Ambient 55 F OD Ambient SUCTION PRESSURE, PSIG TC, TE, YC* 600 Circuit #2...

  • Page 53: Scroll Compressor Operational Noises

    Starting the Compressors (Continued) Scroll Compressor Operational Noises Charging by Subcooling Because the scroll compressor is designed to accommodate The outdoor ambient temperature must be between 65° and liquids (both oil and refrigerant) and solid particles without 105° F and the relative humidity of the air entering the causing compressor damage, there are some characteristic evaporator must be above 40 percent.

  • Page 54: Heater Start Up

    Heater Start Up Gas Heat Units Jump the test terminals momentarily to initiate second stage heat operation. The combustion blower motor should go to high speed and the manifold gas pressure should remain at Open the main disconnect switch to shut the unit off and to a negative 0.2"...

  • Page 55: Mechanical Cooling Sequence Of Operation

    Sequence Of Operation Mechanical Cooling Sequence Of Operation dampers have been fully open for at least three minutes. The RTRM evaluates the rate of temperature change during Time delays are built into the controls to increase reliability this delay and will energize compressor(s) as needed to and performance by protecting the compressors and maxi- maintain temperatures within setpoint deadbands.

  • Page 56: Economizer Operation Comparative Enthalpy

    Sequence Of Operation (Continued) Variable Air Volume (VAV) unit fan operation Economizer Operation based on Comparative Enthalpy Comparative enthalpy is accomplished by using an outdoor During any heating mode the VFD or IGV must be at 100%. humidity sensor (OHS), return humidity sensor (RHS), and Therefore, before the unit can heat, the VHR relay must the return air sensor (RAS).

  • Page 57: Service And Maintenance

    Service & Maintenance force scale. This value represents the force (in pounds) Electric Heat Sequence Of Operation required to deflect the belt(s) the proper distance when properly adjusted. When heat is required and the Fan selection switch is in the “AUTO”...

  • Page 59: Monthly Maintenance

    Service & Maintenance (Continued) Figure 17 Deflection Force (Lbs.) Belt Deflection Super Steel Cable Belts Gripbelts Gripnotch Gripbelts Cross Small P.D Section Range Min. Max. Min. Max. Min. Max. 3.0 -3.6 4 1/2 3 7/8 5 1/2 3 1/4 3.8 - 4.8 3 1/2 4 1/2 6 1/4 3 3/4 4 3/4 5.0 - 7.0...

  • Page 60: Heating Season

    Service & Maintenance (Continued) [ ] YC* units only - Check the heat exchanger(s) for any cor- [ ] Generally inspect the unit for unusual conditions (e.g., rosion, cracks, or holes. loose access panels, leaking piping connections, etc.) Make sure that all retaining screws are reinstalled in the [ ] Check the combustion air blower for dirt.
  • Page 61 Service & Maintenance (Continued) Refrigerant Coils Note: Refrigerant oil is detrimental to some roofing To clean refrigerant coils, use a soft brush and a sprayer (ei- ther a garden pump-up type or a high-pressure sprayer). A materials. Care must be taken to protect the roof from oil leaks or spills.

  • Page 62: Maintenance Log

    Table 28 Sample Operator's Maintenance Log (See Note) Refrigerant Circuit #1 Refrigerant Circuit #2 Current Ambient Compr. Suct. Disch. Liquid Super- Sub- Compr. Suct. Disch. Liquid Super- Sub- Temp. Press. Press. Press. heat cool. Press. Press. Press. heat cool. Date Level (Psig) (Psig)

  • Page 63: System Troubleshooting

    System Troubleshooting The RTRM has the ability to provide the service personnel System Status/Diagnostics with some unit diagnostics and system status information. System status and/or diagnostics can be observed at the ZSM, through ICS, or at the unit by using a DC voltmeter. Before turning the main power disconnect switch "Off", fol- The LED on the RTRM module does not indicate whether low the steps below to check the Unit Control.

  • Page 64: Method 2

    SERVICE J6-10 On = dirty air filter indication Diagnostics (VAV only) Off = normal operation If only one diagnostic is present, refer to that diagnostic. If Pulsing = a diagnostic is present more than one diagnostic is present, refer to combination (see DIAGNOSTICS).

  • Page 65: Clogged Filter Switch

    System Troubleshooting (Continued) Method 1 Test 1 Zone Temperature Thermistor (ZTEMP) To reset the system from the space, turn the "Mode" selec- tion switch at the zone sensor to the "Off" position. After ap- This component is tested by measuring the resistance be- proximately 30 seconds, turn the "Mode"...

  • Page 66: Rtrm Default Operation

    System Troubleshooting (Continued) Method 2 Constant Volume Defaults Testing the LED with an analog Ohmmeter. Connect Ohm- meter across LED in one direction, then reverse the leads Component or Function Default Operation for the opposite direction. The LED should have at least 100 Cooling Setpoint (CSP) 74°...
  • Page 67 System Troubleshooting (Continued) Note: The Outdoor Air Sensor (OAS) is also used for ReliaTel Air Module (RTAM) Test the economizer operation. It is connected to the RTRM. Test 1 Testing the Inlet Guide Vane/Variable Frequency Drive Test 1 (IGV/VFD) Output. Disconnect the OAS from the wires in the return air sec- tion.

  • Page 68: Vfd Testing

    System Troubleshooting (Continued) Test 3 Testing the VAV Setpoint Potentiometers Turn the main power disconnect switch "OFF". Check each potentiometer listed in the table below by measuring resis- tance. These potentiometers are built into the RTAM module and are not replaceable. Static Pressure Setpoint 0-560 ohms (Approximate) RTAM J7-1,2...

  • Page 69: System Troubleshooting Chart

    System Troubleshooting Chart Begin troubleshooting by checking for any diagnostics. See System Status/Diagnostics. Always verify the unit is operating in the proper "MODE" when troubleshooting. SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION A. Unit will not operate. 1. No power to the Unit. 1.
  • Page 70 System Troubleshooting Chart (Continued) SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION G. ODM 3 and/or 4 will 1. OAS has failed. 1. Perform OAS Resistance/Temperature check. Replace if necessary. not cycle. 2. ODM3 and/or 4 capacitor 2. Check ODM capacitor, replace if necessary. has failed.
  • Page 71 System Troubleshooting Chart (Continued) SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION L. No Heat (YC’s only) 1. Wiring or terminal 1. Verify presence of 24 VAC between IGN J1-7 terminal to ground, if GV does not energize, failure. not present, check wiring and terminals. Repair or replace if necessary. CFM runs, IP warms up 2.
  • Page 72 System Troubleshooting Chart (Continued) SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION Q. Economizer will not 1. Economizer connector not 1. Check connector, and connect if necessary. operate. plugged into unit wiring harness 2. Economizer Actuator 2. Verify that 24 VAC is present between ECA terminals 24 VAC and Common. (ECA) has failed Place the unit in econ test mode, economizer actuator should drive open.

  • Page 73: Component Failure Mode

    Component Failure Mode COMPONENT FAILURE RESPONSE NORMAL RANGE DIAGNOSTIC Heat and cool failure output at RTRM J6-7 to J6-6 and 1. Economizer in minimum 055 to 175 F RTRM J6-8 to J6-6. position. Will not 680K to 1.2K Heat and cool LED's modulate.
  • Page 74 Component Failure Mode (Continued) COMPONENT FAILURE RESPONSE NORMAL RANGE DIAGNOSTIC If RTRM senses a zone temp input and then it is lost, (ZTEMP) Zone 1. No Heating or Cooling -40 TO 150 F CV Cool Failure Output Temperature Sensor ZSM "Fan" selection 346K to 2.1K at RTRM J6-8 to J6-6 CV or VAV during...

  • Page 75: Vfd Programming Parameters

    Should replacing the a VFD become necessary, the re- charge of capacitors, see PROD-SVB06A-EN placement is not configured with all of Trane's operating pa- rameters. The VFD must be programmed before attempting HIGH VOLTAGE IS PRESENT AT TERMINAL BLOCK 1TB1 to operate the unit.
  • Page 76 VFD Programming Parameters Continued value to be changed (e) Press the Up or Down arrow button to change the parameter Press OK button when desired change has been made. 3. Repeat step (3) for each menu selection setting in Table 4.

  • Page 77: Warranty Information

    Degradation of these materials can result in serious damage to the equipment. Trane accepts no responsibility for the performance or operation of our equipment in which ultraviolet devices were installed outside of the Trane factory or its approved suppliers.

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