Trane VR104GD-U Series Installation Instructions Manual
Trane VR104GD-U Series Installation Instructions Manual

Trane VR104GD-U Series Installation Instructions Manual

Single package gas heating / electric cooling

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(V)R104GD-U Ultra Low NOx Series
INSTALLATION INSTRUCTIONS
Single Package Gas Heating / Electric Cooling
This product complies with SJVAPCD 4905 and SCAQMD 1111 with NOx levels below 14ng/J when operated on natural gas.
Failure to follow safety warnings exactly could result in serious injury, death, or property damage.
– Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any
other appliance.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a neighbors phone. Follow the gas suppliers instructions.
• If you cannot reach your gas supplier, call the fire department.
– Installation and service must be performed by a qualified installer, service agency or the gas
supplier.
DO NOT DESTROY THIS MANUAL. READ ALL INSTRUCTIONS IN THIS MANUAL AND
FIRE OR EXPLOSION HAZARD
WHAT TO DO IF YOU SMELL GAS
KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
WARNING
13.4 SEER2 / 81% AFUE

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Summary of Contents for Trane VR104GD-U Series

  • Page 1 (V)R104GD-U Ultra Low NOx Series 13.4 SEER2 / 81% AFUE INSTALLATION INSTRUCTIONS Single Package Gas Heating / Electric Cooling This product complies with SJVAPCD 4905 and SCAQMD 1111 with NOx levels below 14ng/J when operated on natural gas. WARNING FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury, death, or property damage.
  • Page 2: Table Of Contents

    TABLE OF CONTENTS IMPORTANT SAFETY INFORMATION ......3 START UP & ADJUSTMENTS ........13 Pre-Start Check List ............13 REQUIREMENTS & CODES ........... 4 Start-Up Procedure ............13 Air Circulation ............. 13 GENERAL INFORMATION ..........5 System Cooling ............13 Before you install this unit ..........
  • Page 3: Important Safety Information

    IMPORTANT SAFETY INFORMATION WARNING: Please read all instructions before servicing this equipment. Pay attention to all safety warnings and any other special PROPOSITION 65 WARNING: This product contains notes highlighted in the manual. Safety markings are used fiberglass wool, a product known to the state of frequently throughout this manual to designate a degree or California to cause cancer.
  • Page 4: Requirements & Codes

    REQUIREMENTS & CODES Duct Systems • US and CANADA: Air Conditioning Contractors Association • This equipment must be installed in accordance with (ACCA) Manual D, Sheet Metal and Air Conditioning instructions outlined in this manual, all applicable local Contractors National Association (SMACNA), or American building codes, and the current revision of the National Society of Heating, Refrigeration, and Air Conditioning Fuel Gas Code (NFPA54/ANSI Z223.1) or the Natural...
  • Page 5: General Information

    GENERAL INFORMATION • Overhead obstructions, poorly ventilated areas, and areas subject to accumulation of debris should be avoided. Do not This single package gas heating / electric cooling unit is place the unit in a confined space or recessed area where designed only for outdoor rooftop or ground level slab discharge air from the unit to re-circulate into the condenser installations and can be readily connected to the high static duct...
  • Page 6: Combustion Air & Venting Requirements

    COMBUSTION AIR & VENTING REQUIREMENTS General Information WARNING: WARNING: CARBON MONOXIDE POISONING HAZARD Installation methods other than those described in Failure to follow the steps outlined below for the following sections must comply with the National each appliance connected to the venting system Fuel Gas Code and all applicable local codes for being placed into operation could result in carbon providing sufficient combustion air to the unit.
  • Page 7: Circulating Air Supply

    Figure 2 shows the proper installation of the vent cover CIRCULATING AIR SUPPLY assembly over the vent outlet on the exterior of the corner panel. The fasteners used to secure the vent cover assembly WARNING: have been included in the owner’s package. The following list summarizes the requirements for the location of the vent Products of combustion must not be allowed to system termination:...
  • Page 8: Air Filter Requirements

    Air Filter Requirements Unconditioned Spaces Air Filter An air filter is not supplied with this package unit as All duct work passing through unconditioned space must shipped from the factory. The installer must provide a high be properly insulated to minimize duct losses and prevent velocity filter that is appropriately sized to the return air duct condensation.
  • Page 9: Unit Installation

    UNIT INSTALLATION the unit’s weight. The slab height must be a minimum of 2” (5cm) above grade and with adequate drainage. See Figure Packaging Removal 4 (page 10). Remove the shipping carton and User’s Manual from the • Remove and discard the horizontal Supply and Return duct equipment.
  • Page 10: Electrical Wiring

    ELECTRICAL WIRING WARNING: ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury, death, or property damage. Improper servicing could result in dangerous operation, serious injury, death or property damage. • Before servicing, disconnect all electrical power to furnace.
  • Page 11: Thermostat / Low Voltage Connections

    • An electrical disconnect must be located within sight may be adversely affected by radiant heat from fireplaces, of and readily accessible to the unit. This switch shall be sunlight, or lighting fixtures, and convective heat from warm capable of electrically de-energizing the outdoor unit. See air registers or electrical appliances.
  • Page 12: Humidifier

    Humidifier This unit only has right side gas entry. When connecting the The furnace control board provides output terminals for gas, provide clearance between the gas supply line and the an optional humidifier (HUM) that can be installed on your entry hole in the unit’s casing to avoid unwanted noise and/ system.
  • Page 13: Start Up & Adjustments

    Shut-Off Valve with 1 /8 NPT plugged tap NOTE: Some utilities require Shut-Off Valve to be 4 to 5 feet above floor Dripleg Automatic Gas Valve (with manual shut-off) Ground Joint Union Figure 7. Typical Gas Hookup - Right Side Entry √...
  • Page 14: System Heating

    System Heating 7. Adjust the manifold pressure if necessary. See Manifold 1. Set the thermostat to the lowest setting. Pressure Adjustment below. For additional information about 2. Follow the procedures given on the operating instruction elevations above 2,000 feet, see page label, this manual or attached inside the louvered control Manifold Pressure Adjustment...
  • Page 15: Verify Operation Of The Supply Air Limit Switch

    3. After validating the flame, change the thermostat setting to Cooling Cycle below room temperature. 1. The thermostat calls for cooling by energizing the Y & G 4. Verify the burner flame is completely extinguished. terminal with 24VAC. 5. Replace the burner compartment door. 2.
  • Page 16: Heat Exchanger & Burner Maintenance

    • Inspect, clean or replace air filters at the beginning of each 7. Lift the assembly and bracket straight up out of the burner box heating and cooling season, or more frequently if required. and off the HX panel. NOTE: Use of a flat blade screwdriver Refer to Table 1 (page 8) for recommended external...
  • Page 17: Troubleshooting

    TROUBLESHOOTING DIAGNOSTIC DESCRIPTION GREEN LED RED LED If the unit does not operate in the cooling mode, check the Control Fault (No Power) following: • Is the thermostat operating properly? L1/Neutral Polarity Fault Flash Flash • Is the blower compartment doors in place? 1 Hour Lockout Alternating Flash •...
  • Page 18: Figures & Tables

    FIGURES & TABLES 3/4" NPT Female 24 9/10 Drain Connector DOWNFLOW SUPPLY DUCT OPENING Top View 47 1/2 13 1/2 13 1/2 13 3/10 DOWNFLOW 23 1/2 1.75 RETURN DUCT Horizontal Horizontal OPENING Supply Duct Return Duct Condensing Opening Opening Coil 16.0 16.0...
  • Page 19: Airflow Data

    Airflow Data EXTERNAL STATIC PRESSURE DROP - INCHES WATER COLUMN HEATING MODEL MOTOR RISE NUMBER RANGE (°F) (°F) (°F) (°F) (°F) (°F) (°F) (°F) (ACFM) (ACFM) (ACFM) (ACFM) (ACFM) (ACFM) (ACFM) (ACFM) RISE RISE RISE RISE RISE RISE RISE RISE Tap T1** Tap T2 (V)R104GD-...
  • Page 20 EXTERNAL STATIC PRESSURE DROP - INCHES WATER COLUMN MODEL MOTOR NUMBER SCFM SCFM SCFM SCFM SCFM SCFM SCFM SCFM Tap T1 Tap T2 (V)R104GD- Tap T3 1112 1050 024K055U Tap T4* 1160 1105 1053 Tap T5 1472 1411 1350 1295 1228 1164 1097...
  • Page 21: Gas Information

    Gas Information CAPACITY OF BLACK IRON GAS PIPE (CU. FT. PER HOUR) FOR NATURAL GAS (SPECIFIC GRAVITY - 0.60) LENGTH OF PIPE RUN (FEET) NOMINAL PIPE DIAMETER (IN.) 1 1/4 1,050 1 1/2 1,600 1,100 Input To Furnace (Btu/hr) Cubic Feet Per Hour Required = Heating Value of Gas (Btu/Cu.
  • Page 22 FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury, or loss of life. A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner.
  • Page 23: Wiring Diagram & Electrical Data

    Wiring Diagram & Electrical Data HIGH XFMR R C Y G W Figure 12. Wiring Diagram for 230V / 60 Hz Unit...
  • Page 24 Wiring Diagram & Electrical Data HIGH XFMR R C Y G W Figure 13. Wiring Diagram for 230V / 60 Hz Unit with ECM Outdoor Motor...
  • Page 25 HEATING NOMINAL INDUCER MINIMUM MAXIMUM VOLTAGE RANGE COMPRESSOR MODEL BLOWER INPUT ELECTRICAL MOTOR CIRCUIT OVER-CURRENT NUMBER AMPS AMPS (BTUH) SUPPLY MIN. MAX. AMPS AMPACITY PROTECTION 024K 55,000 230-60-1 12.8 58.3 20.8 030K 70,000 230-60-1 14.1 1.46 24.5 036K 70,000 230-60-1 16.7 1.46 27.7...
  • Page 26: Furnace Components

    FURNACE COMPONENTS The descriptions below are various functional components that affect the operation and shutting down of this furnace. Some of these components and their locations are shown in Figure 14. If any component of the furnace must be replaced, use only factory authorized replacement parts specified in the Replacement Parts List.
  • Page 28: Installation Checklist

    INSTALLATION CHECKLIST GAS SYSTEM INSTALLATION ADDRESS: Natural Gas Type: (circle one) Propane CITY: STATE: Gas pipe connections leak-tested? UNIT MODEL # Gas Line Pressure (in - W.C.): Is there adequate fresh air supply UNIT SERIAL # for combustion and ventilation? Unit Installed Minimum clearances Installation Altitude (FT.): Figure 1 (page...

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R104gd-u series

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