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Rheem RGRL SERIES - User Manual

Rheem RGRL SERIES
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92-24161-36-22
SUPERSEDES 92-24161-36-21
INSTALLATION INSTRUCTIONS
FOR UPFLOW AND DOWNFLOW/HORIZONTAL
HIGH EFFICIENCY CONDENSING TWO-STAGE
GAS FURNACES
RGRK, RGRL, AND RGTK SERIES
ISO 9001:2008
U.L. recognized fuel gas and CO (carbon monoxide) 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.

Questions and Answers:

Rheem RGRL SERIES Specifications

General IconGeneral
AFUE80%
Ignition TypeDirect Spark Ignition
Heat Exchanger MaterialAluminized Steel
Fuel TypeNatural Gas
Cabinet TypeUpflow or Downflow
Heating Capacity40, 000 to 120, 000 BTU/h
StagesSingle Stage
Warranty10-Year Heat Exchanger Limited Warranty, 5-Year Parts Limited Warranty

Summary

Installation Check List

General Information

Efficiency and Indoor Air Quality

Safety Information

Massachusetts Requirements

Details Massachusetts specific requirements for gas appliance venting and CO detectors.

Location Requirements and Considerations

Site Selection

Guidelines for choosing an appropriate site for furnace installation.

Clearances and Accessibility

Specifies minimum clearances for safety and service access.

Model-Specific Clearances

Details minimum clearances for different furnace models (Upflow, Downflow, Horizontal).

Ducting

Upflow & Horizontal Ducting

Specific ducting considerations for upflow and horizontal furnace installations.

Venting and Combustion Air Piping

Venting & Air Piping Guidelines

General principles for venting and combustion air piping.

Pipe Joining and Cementing

Instructions for properly joining and cementing vent pipes and fittings.

Combustion and Ventilation Air

Non-Direct Furnace Air Requirements

Air requirements for non-direct vent furnace installations.

Confined Space Air Supply

Guidance on air supply for furnaces in confined spaces.

Vent Pipe Installation

Non-Direct Vent Installation Guidelines

General guidelines for non-direct vent pipe installation.

Standard Vent Terminations

Requirements for standard vent terminations and location criteria.

Direct Vent Installations

Direct Vent Installation Guidelines

General guidelines for direct vent installation procedures.

Direct Vent Combustion Air

Specific requirements for the combustion air system used with direct vent furnaces.

Concentric Terminations

Horizontal Direct Vent Location

Multiventing Guidelines

Guidelines for venting multiple furnaces together, emphasizing no common venting.

Connecting to Furnace

Upflow Furnace Connections

Specific connection details for upflow furnace configurations.

Downflow;Horizontal Furnace Connections

Specific connection details for downflow/horizontal furnace configurations.

Condensate Drain and Neutralizer

General Condensate Drainage

General information and precautions regarding condensate drainage.

Upflow Models Condensate Setup

Specific details for condensate drain setup in upflow models.

Horizontal Installation Conversion

Steps for converting the condensate drain system for horizontal furnace installation.

Gas Supply and Piping

Gas Supply Information

Information regarding gas types, conversion kits, and supply requirements.

Gas Piping Installation

Instructions for installing gas piping according to codes and best practices.

LP Gas Conversion

Procedures for converting the furnace from natural gas to LP gas.

Gas Pressure Setting

Procedures for measuring and adjusting gas supply and manifold pressures.

Electrical Wiring

Furnace Twinning Installations

Electronic Controls Twinning

Specifics for twinning using UT Electronic Controls 1095-201 or 204.

High Altitude Installations

Natural Gas High Altitude

High altitude considerations for natural gas furnaces.

LP Gas High Altitude

Specific guidance for LP gas furnace installations at high altitudes.

Start-Up Procedures

Direct Spark Ignition

Instructions for the direct spark ignition system and initial firing.

Ignitor Placement and Alignment

Guidance on proper ignitor placement and alignment for reliable ignition.

Thermostat Operation Startup

Describes startup sequences for single and two-stage thermostats.

Furnace Input Adjustment

Gas Input Adjustment Procedures

Steps for adjusting input rate for Natural Gas, LP Gas, and setting the rate.

Air Flow

Temperature Rise Check

Steps for performing a temperature rise check to verify airflow.

Changing Blower Speed

Maintenance

Filter Maintenance and Location

Guidance on maintaining furnace filters and their locations.

Motor Lubrication

Information regarding lubrication of blower and inducer motors.

System Operation Information

Annual Inspection Recommendations

Recommendations for annual inspection of furnace components for safe operation.

Troubleshooting

Wiring Diagram

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