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Rheem RGTA SERIES User Manual

Rheem RGTA SERIES
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!
If the information in these instructions is not followed exactly, a
fire or explosion may result, causing property damage, personal
injury or death.
INSTALLATION INSTRUCTIONS
FOR UPFLOW & DOWNFLOW/HORIZONTAL HIGH
EFFICIENCY CONDENSING GAS FURNACES
RGRA/RGRJ AND RGTA/RGTJ SERIES
92-23531-16-09
SUPERSEDES 92-23531-16-08
THESE INSTRUCTIONS ARE
INTENDED AS AN AID TO
QUALIFIED SERVICE
PERSONNEL FOR PROPER
INSTALLATION, ADJUSTMENT
AND OPERATION OF THIS
UNIT. READ THESE
INSTRUCTIONS THOROUGHLY
BEFORE ATTEMPTING
INSTALLATION OR
OPERATION. FAILURE TO
FOLLOW THESE
INSTRUCTIONS MAY RESULT
IN IMPROPER INSTALLATION,
ADJUSTMENT, SERVICE OR
MAINTENANCE, POSSIBLY
RESULTING IN FIRE,
ELECTRICAL SHOCK, CARBON
MONOXIDE POISONING,
EXPLOSION, PROPERTY
DAMAGE, PERSONAL INJURY
OR DEATH.
Do Not Destroy this Manual.
Please read carefully and keep
in a safe place for future
reference by a serviceman.
WARNING
Recognize this symbol as an indication of Important Safety Information!
!
Do not store or use gasoline or other
flammable vapors and liquids, or other
combustible materials in the vicinity of this
or any other appliance.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch; do not
use any phone in your building.
Immediately call your gas supplier from a
neighbor’s phone. Follow the gas
supplier’s instructions.
If you cannot reach your gas supplier,
call the fire department.
Do not return to your home until
authorized by the gas supplier or fire
department.
DO NOT RELY ON SMELL ALONE TO
DETECT LEAKS. DUE TO VARIOUS
FACTORS, YOU MAY NOT BE ABLE TO
SMELL FUEL GASES.
U.L. recognized fuel gas and CO
detectors are recommended in all
applications, and their installation should
be in accordance with the manufacturer’s
recommendations and/or local laws,
rules, regulations, or customs
Improper installation, adjustment, alteration,
service or maintenance can cause injury,
property damage or death. Refer to this
manual. Installation and service must be
performed by a qualified installer, service
agency or the gas supplier.
WARNING
!
PROPOSITION 65: THIS FURNACE CONTAINS FIBERGLASS
INSULATION. RESPIRABLE PARTICLES OF FIBERGLASS ARE
KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER.
EXHAUST GAS FROM THIS FURNACE CONTAINS CHEMICALS,
INCLUDING CARBON MONOXIDE, KNOWN TO THE STATE OF
CALIFORNIA TO CAUSE BIRTH DEFECTS OR OTHER
REPRODUCTIVE HARM.
WARNING
!
FOR YOUR SAFETY
!

Questions and Answers:

Rheem RGTA SERIES Specifications

General IconGeneral
BrandRheem
ModelRGTA SERIES
CategoryFurnace
LanguageEnglish

Summary

INSTALLATION INSTRUCTIONS

SAFETY PRECAUTIONS

General warnings about fire, explosion, and hazardous substances.

FOR YOUR SAFETY

Essential safety guidelines for gas appliance usage and installation.

LOCATION AND INSTALLATION REQUIREMENTS

Location Requirements and Considerations

Guidelines for selecting the proper installation site for the furnace.

Venting and Combustion Air Piping

Instructions for installing vent and combustion air systems.

Gas Supply and Piping

Guidelines for connecting the gas supply and piping.

Electrical Wiring

Instructions for making electrical connections to the furnace.

FURNACE COMPONENT DIAGRAMS

Upflow Furnace Components (Figure 1)

Diagram showing components of the upflow furnace model.

Downflow/Horizontal Furnace Components (Figure 2)

Diagram illustrating components of the downflow/horizontal furnace.

CLEARANCES AND ACCESSIBILITY

Clearances to Combustibles

Information on required clearances for service and fire safety.

DUCTING AND VENTING

Ducting Requirements

Instructions for connecting ductwork to furnace configurations.

Vent Pipe Installation Guidelines

General guidelines for installing non-direct vent pipes.

VENTING AND COMBUSTION AIR

General Information

Overview of venting and combustion air requirements for furnaces.

Existing Vent Systems

Procedures for installing furnaces in existing vent systems.

PIPE JOINING AND FITTINGS

Cementing Joints

Detailed instructions for joining PVC pipes and fittings.

COMBUSTION AND VENTILATION AIR

Non-Direct Furnace Installations

Requirements for air supply for combustion and ventilation.

OUTDOOR AIR FOR COMBUSTION

Method 1: Air Openings

Method for providing openings for outdoor air.

Method 2: Air Openings

Alternative method for providing outdoor air openings.

VENT PIPE TERMINATION GUIDELINES

Non-Direct Vent Installation Guidelines

General guidelines for installing non-direct vent pipes.

Table 1: Non-Direct Vent Applications

Table of allowable vent pipe lengths and elbow counts.

HORIZONTAL DIRECT VENT LOCATION REQUIREMENTS

Minimum Clearances

Requirements for locating horizontal direct vent terminations.

CONNECTING TO FURNACE

Upflow Furnace Connections

Instructions for connecting pipes to upflow furnace.

Downflow/Horizontal Furnace Connections

Instructions for connecting pipes to downflow/horizontal furnace.

CONDENSATE DRAIN AND NEUTRALIZER

General Information

Overview of condensate drain and neutralizer functions.

Upflow Models Condensate Drain

Details for condensate drain setup in upflow configurations.

Downflow Models Condensate Drain

Details for condensate drain setup in downflow configurations.

REVERSING THE CONDENSATE TRAP

Upflow Units Trap Reversal

Procedure to reverse the trap for right-side drainage.

Downflow Units Trap Reversal

Procedure to reverse the trap for left-side drainage.

GAS SUPPLY AND PIPING

Gas Supply Requirements

Information and warnings regarding gas supply.

Gas Piping Installation

Guidelines for installing gas piping.

GAS PRESSURE MEASUREMENT

Supply Gas Pressure Measurement

Procedures for measuring supply gas pressure.

Manifold Gas Pressure Measurement

Procedures for measuring manifold gas pressure.

LP GAS CONVERSION

LP Conversion Procedure

Instructions for converting the furnace to LP gas.

NOx Models LP Conversion

Instructions for removing NOx inserts when converting to LP.

ELECTRICAL WIRING AND SAFETY

Electrical Wiring Safety Warnings

Critical electrical safety warnings and precautions.

THERMOSTAT INSTALLATION AND WIRING

Thermostat Compatibility and Wiring

Information on thermostat compatibility and wiring.

Low Voltage Wiring Guidelines (Table 5)

Table for selecting low voltage wire gauge based on run length.

ACCESSORIES AND FURNACE TWINNING

Field-Installed Option Accessories

Details on optional accessories like air cleaners and humidifiers.

Furnace Twinning Installations

Instructions for twinning furnace units.

WIRING DIAGRAMS (HONEYWELL)

Single Stage Twinning Operation

Wiring diagram for single-stage twinning with Honeywell boards.

WIRING DIAGRAMS (HONEYWELL CONT.)

Two Stage Twinning Operation

Wiring diagram for two-stage twinning with Honeywell boards.

WIRING DIAGRAMS (UTEC)

Single Stage Twinning Operation

Wiring diagram for single-stage twinning with UTEC boards.

WIRING DIAGRAMS (UTEC CONT.)

Two Stage Twinning Operation

Wiring diagram for two-stage twinning with UTEC boards.

WIRING DIAGRAMS (JOHNSON CONTROLS)

Single Stage Twinning Operation

Wiring diagram for single-stage twinning with Johnson Controls boards.

WIRING DIAGRAMS (JOHNSON CONTROLS CONT.)

Two Stage Twinning Operation

Wiring diagram for two-stage twinning with Johnson Controls boards.

START-UP PROCEDURES

Starting the Furnace

Step-by-step instructions for starting the furnace.

Shutting Down the Furnace

Instructions for safely shutting down the furnace.

Sequence of Operation

Describes the normal operating sequence and lockout conditions.

FURNACE INPUT ADJUSTMENT

Checking Furnace Input

Procedures for adjusting and checking furnace input rates.

Setting Input Rate

Guidance on setting the furnace's input rate.

AIR FLOW MANAGEMENT

Temperature Rise Check

Method for checking air flow via temperature rise.

AIR FLOW PERFORMANCE TABLES

RGRA/RGTA Air Flow Performance

Table detailing air flow performance for RGRA/RGTA models.

AIR FLOW PERFORMANCE TABLES (CONT.)

RGRJ/RGTJ Air Flow Performance

Table detailing air flow performance for RGRJ/RGTJ models.

SETTING BLOWER TIMINGS AND SPEED

Blower Timing Settings

Instructions for setting blower off timings.

Changing Blower Speed

Instructions for changing blower speed.

MAINTENANCE AND FILTERS

Filter Maintenance

Instructions for cleaning and maintaining furnace filters.

Filter Size Table

Table listing filter sizes for different furnace models.

SYSTEM OPERATION AND INSPECTION

Customer Operation Advice

Guidance for advising customers on system operation.

Annual Inspection Recommendations

Recommendations for annual furnace inspections.

Warning: Vent Pipe or Heat Exchanger Leaks

Warning about toxic fumes from vent or heat exchanger leaks.

Troubleshooting and Wiring Diagrams Reference

References for troubleshooting and electrical diagrams.

TROUBLESHOOTING GUIDES (HONEYWELL/UTEC)

Honeywell/UTEC Control Troubleshooting

Troubleshooting flow chart for Honeywell/UTEC controls.

Hazardous Voltage Warning

Warning about hazardous voltage during servicing.

TROUBLESHOOTING GUIDES (SPARK IGNITION)

UTEC/Johnson Controls Troubleshooting

Troubleshooting flow chart for UTEC/Johnson controls (spark ignition).

Hazardous Voltage Warning

Warning about hazardous voltage during servicing.

TROUBLESHOOTING GUIDES (UTEC 1012-925)

UTEC 1012-925 Control Troubleshooting

Troubleshooting flow chart for UTEC controls (spark ignition).

Hazardous Voltage Warning

Warning about hazardous voltage during servicing.

WIRING DIAGRAMS (HONEYWELL)

RGRA/RGTA with Honeywell/UTEC Controls

Wiring diagram for RGRA/RGTA with Honeywell/UTEC controls.

WIRING DIAGRAMS (UTEC/JOHNSON CONTROLS)

RGRA/RGTA with UTEC/Johnson Controls (Spark Ignition)

Wiring diagram for RGRA/RGTA with UTEC/Johnson controls.

WIRING DIAGRAMS (RGRJ/RGTJ)

RGRJ/RGTJ with UTEC Controls

Wiring diagram for RGRJ/RGTJ with UTEC controls.

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