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Trane *UH2C100A9V5VA User Manual

Trane *UH2C100A9V5VA
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ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT This Document is customer property and is to remain with this unit.
Please return to service information pack upon completion of work.
Installer’s Guide
*__First letter may be “A” or “T”
Upflow / Horizontal and Downflow / Horizontal,
Gas-Fired, Direct Vent, 2-Stage Condensing
Furnaces with Variable Speed Inducer
A341624P11
© 2010 Trane All Rights Reserved
UPFLOW
*UH2
UPFLOW/HORIZONTAL
*DH2
DOWNFLOW
DOWNFLOW/HORIZONTAL
Figure 1
18- CD26D1- 1
0
Available in French Canadian (FC)
*UH2B060A9V3VA
*UH2B080A9V3VA
*UH2B080A9V4VA
*UH2C100A9V4VA
*UH2C100A9V5VA
*UH2D120A9V5VA
*DH2B060A9V3VA
*DH2B080A9V3VA
*DH2B080A9V4VA
*DH2C100A9V4VA
*DH2D120A9V5VA

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Trane *UH2C100A9V5VA Specifications

General IconGeneral
BrandTrane
Model*UH2C100A9V5VA
CategoryFurnace
LanguageEnglish

Summary

Safety Warnings and Hazards

Carbon Monoxide Poisoning Hazard

Warning about carbon monoxide poisoning from improper venting procedures.

Fire and Explosion Hazards

Warnings regarding flammable vapors, gas leaks, and explosion risks.

General Safety Information

Information for individuals with electrical and mechanical experience; caution for sharp edges.

California Proposition 65 Warnings

Fiberglass Insulation Hazards and Precautions

Potential health risks from fiberglass insulation and required safety measures.

Propane Gas Explosion Hazard

Warning about propane gas heaviness and collection in low areas.

Safety Signal Words Explained

Definitions and implications of WARNING and CAUTION signals.

General Installation Safety Practices

Temporary Heating Requirements

Conditions for using the furnace for temporary heating during construction.

Massachusetts Gas Piping Requirement

Requirement for licensed plumber or gas fitter for gas piping in Massachusetts.

General Installation Instructions

Installation Standards and Codes

Adherence to National Fuel Gas Code, ANSI, CSA, and local codes.

Furnace Location and Clearances

Guidelines for selecting furnace location and maintaining required clearances.

Furnace Installation Types

Upflow Furnace Installation

Steps for preparing the upflow furnace and installing cased coils.

Downflow Furnace Installation

Requirements for downflow furnace installation, including sub-base.

Horizontal Furnace Installation

Guidelines for supporting and draining horizontally installed furnaces.

Air for Combustion and Ventilation

Hazardous Gas Warning

Warning regarding exposure to fuel substances and combustion by-products.

Air Supply Requirements for Spaces

Guidelines for unconfined and confined space air supply.

Special Air Supply Requirements

Conditions necessitating outdoor air for combustion due to chemical exposure.

Duct Connections and Installation

Ductwork Safety Precautions

Includes sharp edge hazard warning and general safety considerations.

Duct System Design and Installation Standards

Standards for duct systems, including NFPA 90 and ACCA Manual D.

Airflow and Noise Considerations

Managing vibration, noise transmission, and external supply air return.

Return Air Filter Installation

Upflow Furnace Filter Preparation

Steps for preparing the filter rack for upflow furnace bottom or side return.

Return Air Filter Requirements

Filter types for upflow furnaces and external filters for horizontal configurations.

Filter Rack Installation Procedures

Bottom Return Filter Rack Installation

Checklist and steps for installing the filter rack in the bottom return position.

Side Return Filter Rack Installation

Checklist and steps for installing the filter rack in the side return position.

Filter Installation Details

Alternate Upflow Filter Clip Installation

Instructions for installing alternate filter clips and brackets for upflow furnaces.

Downflow Furnace Filter Installation

Filter cutting instructions and requirements for downflow furnace filters.

General Venting Requirements

Carbon Monoxide Poisoning Hazard

Warning about potential carbon monoxide poisoning from improper venting.

Furnace Venting System Design

Requirements for direct vent, positive-pressure, Category IV venting systems.

Common Venting System Safety

Steps for safe operation of appliances connected to a common venting system.

Furnace Vent and Inlet Pipe Installation

Direct and Nondirect Venting Applications

Explanation of direct vent vs. nondirect vent applications.

Vent Pipe Installation Examples

Illustrations and guidelines for various vent pipe and inlet air combinations.

Vent Fitting Materials and Connections

Plastic Vent Fitting Requirements

Guidelines for PVC vent fittings, joints, sealing, and support.

PVC Pipe Cementing Procedure

Step-by-step procedure for cementing PVC pipe fittings.

Vent and Inlet Air Connection Sealing

Instructions for sealing vent and inlet air pipe connections.

Vent Length and Orifice Information

Vent Length Tables by Altitude

Maximum equivalent vent and inlet air lengths based on altitude and pipe size.

Replacement Orifice Selection

Part numbers for replacement orifices and altitude adjustment guidance.

Horizontal Venting Installation

Protection Against Freezing

Requirement for insulating vent pipes exposed to temperatures below freezing.

Horizontal Vent Pipe Configurations

Illustrations of possible configurations for two-pipe venting systems.

Horizontal Venting Through Wall

Vent Termination Location Restrictions

Prohibitions on vent termination locations to avoid nuisances or hazards.

Massachusetts Installation Requirements

Mandatory CO detectors and signage for side wall vented appliances.

Side Wall Venting Installation Details

Guidelines for pitch, flue gas degradation, and shielding.

Wall Venting Clearances and Requirements

Combustible and Noncombustible Wall Venting

Clearances and sealing requirements for venting through different wall types.

Vent Terminal Signage and Inspection

Requirements for signage and inspection by state or local gas inspectors.

Venting Through Roof and Ceiling

Roof Vent Termination

Methods for sealing roof penetrations for vent pipes.

Ceiling Vent Termination

Installation guidelines for venting through ceilings.

Venting Through Roof and Chimney

Roof Venting Details

Includes sealing, cold climate considerations, and materials.

Masonry Chimney Venting

Guidelines for venting through masonry chimneys using PVC or stainless steel.

Horizontal Vent Clearances

Non-Direct Vent Terminal Clearances

Table detailing required clearances for non-direct vent terminals.

Downward Venting Installation

Downward Venting Guidelines

Pipe support, slope, condensate trap, and length limits for downward venting.

Condensate Drain Instructions

Upflow Furnace Condensate Drain Setup

Instructions for left/right side drainage and trap repositioning for upflow furnaces.

Horizontal Furnace Condensate Drain Setup

Setup for left-side-only drainage and trap repositioning for horizontal furnaces.

Condensate Drain Safety and Materials

Caution regarding condensate drain pans and required piping materials.

Condensate Drain Installation Details

Horizontal and Upflow Left Side Drain Installation

Specifics for horizontal and upflow left-side drain connections.

Condensate Drain Freeze Prevention

Important measures to prevent winter freeze-up of condensate drain lines.

Vertical and Horizontal Drain Connections

Vertical Furnace Drain Setup

Instructions for upflow and downflow vertical furnace drain connections.

Horizontal Furnace Drain Setup

Procedures for connecting condensate drains on horizontal furnaces.

Gas Piping Installation

Furnace Gas Piping Configurations

Diagrams for upflow, downflow, and horizontal furnace gas piping.

Gas Piping Safety Precautions

Cautionary advice regarding gas valve handling during piping installation.

Gas Piping and Combustion Checks

Gas Piping Hazard Warnings

Explosion hazards related to gas leaks and connector types.

Gas Supply Piping and Pressure Testing

Guidelines for connecting gas supply and performing pressure tests.

Combustion and Input Rate Check

Procedure for checking gas flow rate and input rate.

Gas Valve Manifold Pressure Adjustment

Steps for adjusting manifold pressure using a pressure gauge.

Gas Valve Adjustment Procedures

Adjusting 1st and 2nd Stage Gas Heat

Instructions for adjusting gas heat stages via regulator screws.

Verifying Gas Valve Settings and Leak Check

Steps to verify regulator settings and check for leaks.

Manifold Pressure and Burner Box

Direct Vent Manifold Pressure Check

Correct method for checking manifold pressure with burner box referenced.

Burner Box Cover Reinstallation

Proper procedure for reinstalling the burner box cover after servicing.

High Altitude Operation

Furnace Input Derate for Altitude

Procedure for reducing furnace input rate at elevations above 2,000 ft.

Orifice and Vent Length Adjustments for Altitude

Guidance on orifice changes and vent length requirements for high altitudes.

Electrical Connections and Wiring

1-Stage Heating Thermostat Wiring Diagram

Diagram and notes for wiring a 1-stage heating thermostat.

General Low Voltage Wiring Guidelines

Notes on power, grounding, low voltage wiring, and common terminal connections.

2-Stage Heating Thermostat Wiring

2-Stage Heating Thermostat Wiring Diagram

Diagram and notes for wiring a 2-stage heating thermostat.

Heating and Cooling Thermostat Wiring

1-Stage Heating/1-Stage Cooling Wiring Diagram

Wiring diagram for a 1-stage heating and 1-stage cooling thermostat.

2-Stage Heating/1-Stage Cooling Wiring

2-Stage Heating/1-Stage Cooling Wiring Diagram

Wiring diagram for a 2-stage heating and 1-stage cooling thermostat.

Advanced Wiring Configurations

2-Stage Heating/2-Stage Cooling Wiring Diagram

Wiring diagram for a 2-stage heating and 2-stage cooling thermostat.

Optional Humidistat Hookup

Instructions for connecting an optional humidistat to the furnace control board.

Start-up and Adjustment Procedures

Preliminary Inspection Checklist

Items to check before starting up the furnace, including safety and connections.

Burner Ignition and Lighting

Instructions and warnings for manually lighting the burner.

Sequence of Operation

Detailed explanation of furnace operation for 1-stage and 2-stage calls.

Control and Safety Adjustments

Limit Switch Operation Check

Procedure to check the function of the furnace limit switch.

Indoor Blower Fan Control Settings

Setting indoor blower fan delay options and blower door switch operation.

Heat Anticipator and Airflow Adjustment

Adjusting heat anticipator and checking/adjusting airflow.

System Operation Conditions and Troubleshooting

Combustion Pressure and Vent Blockage Issues

Troubleshooting excessive combustion pressure and vent blockages.

Flame Loss, Power Failure, and Gas Supply Issues

How the system responds to flame loss, power failure, or gas supply interruption.

Condensate Drain and Blower Motor Maintenance

Addressing condensate drain blockages and indoor motor maintenance.

System Reset Procedures

Steps for resetting the system after lockout or burner box limit shutdown.

Furnace Control LED Codes and Faults

Red LED Diagnostic Codes

Explanation of red LED flash codes indicating furnace errors.

Green LED Status Indicators

Interpretation of green LED status lights for normal operation.

Fault Code Recovery and Reset Procedures

Steps for recovering from faults and resetting the furnace control.

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