Payne PG8JAA066110AAJA

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PG8M/PG8J

Installation, Start-up, Operating, and

Service and Maintenance Instructions

-Series C

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The Payne PG8M/PG8J 80% AFUE Gas Furnaces feature 4-

way multipoise design and through-the-furnace downflow

venting. The PG8M/PG8J furnaces are approved for use with

natural or propane gas and the PG8J is also approved for use in

Low Nox Air Quality Management Districts.

STANDARD FEATURES

• Four-position furnace: upflow, horizontal right, horizontal

left, downflow

• Electronic control center

Adjustable heating air temperature rise

LED diagnostics and self test feature

• Hot surface ignition (HSI)

• Twinning in Upflow, Downflow and Horizontal

LIMITED WARRANTY

• 20-year warranty on "Super STM''heat exchanger

• 5-year parts warranty on all other components

Catalog No: 53PG-8J5 Form No. IM-PG8J-05 5-05

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Summary

Safety Considerations

Cut Hazard

Warning about sharp edges and burrs on sheet metal parts.

Introduction

Codes and Standards

Safety Standards

Lists US and Canadian codes for installation and safety.

Electrostatic Discharge (ESD) Precautions Procedure

Location

Location Relative to Cooling Equipment

Guidelines for placing furnace relative to cooling coils.

Air for Combustion and Ventilation

Outdoor Combustion Air Method

Requirements for supplying outdoor air for combustion.

Indoor Combustion Air

Methods for using indoor air for combustion.

Installation

Minimum Inches Clearance to Combustible Construction

Specifies required clearances from furnace to combustible materials.

Upflow Installation

Instructions for installing the furnace in an upflow configuration.

Downflow Installation

Instructions for installing the furnace in a downflow configuration.

Horizontal Installation

Guidelines for installing the furnace horizontally.

Filter Arrangement

Information on external filter rack requirements.

Air Ducts

General requirements for connecting air ducts to the furnace.

Start-Up, Adjustment, and Safety Check

Step 1-General

Initial checks before starting the furnace.

Step 3-Adjustments

Procedures for adjusting gas input rate and temperature rise.

Step 4-Check Safety Controls

Steps to verify the proper function of safety controls.

Step 5-Checklist

Final checklist before leaving the installation.

Service and Maintenance Procedures

Step 1-Introduction

Overview of service and maintenance requirements.

Electrical Controls and Wiring

Guidance on maintaining furnace electrical components and wiring.

Step 2-Care and Maintenance

Routine maintenance procedures for the furnace.

Cleaning and;or Replacing Air Filter

Instructions for maintaining the air filter.

Blower Motor and Wheel

Procedures for cleaning the blower motor and wheel.

Cleaning Heat Exchanger

Steps for cleaning furnace heat exchangers.

Step 3-Sequence of Operation

Describes how the furnace operates in heating, cooling, and heat pump modes.

Step 4-Wiring Diagrams

Reference to diagrams for furnace electrical connections.

Step 5-Troubleshooting

Guide to diagnose and resolve furnace operational issues.