Nordyne MGHA-090A AA PQ-01 User Manual

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Nordyne MGHA-090A AA PQ-01 Specifications

General

Brand	Nordyne
Model	MGHA-090A AA PQ-01
Category	Furnace
Language	English

Summary

Limited Warranty

Five Year Parts and Two Year Labor Coverage

Notice to Installer

Manufacturer Warranty and Owner Responsibilities

Installation Standards

Installation Procedures

Cut Out Floor Opening & Fuel Line Hole

Instructions for cutting floor opening and fuel line hole.

Cut Out Ceiling and Roof Openings

Steps to cut ceiling and roof openings for furnace and vent.

Cut Duct Opening

Install Furnace Mounting Plate

Install Duct Connector

Install Furnace

Steps for placing and securing the furnace onto the connector.

Install Roof Jack

Instructions for installing the roof jack assembly.

Transit-Mode Venting System Installation

Electrical Wiring

Connect Power Supply Wires

Connecting the main power supply wires to the furnace.

Connect Thermostat Wires

Connecting low-voltage thermostat wires to the furnace.

Fuel Piping

Lighting Instructions for Standing Pilot Models

Turning Off Gas to Appliance

Direct Ignition Models Operation

MM Models Direct Ignition Operation

Oil and Gas Gun Furnace Operation

Oil Gun Model Operation

Gas Gun Furnace Operation

Furnace Controls and Functions

Service Guide and Adjustments

Burner Adjustments

Gas Conversion

Troubleshooting Standing Pilot Models

Main Burner Does Not Come On

Diagnosing issues where the main burner fails to ignite.

Gas Valve Powered (24 volts) - No Main Flame

Troubleshooting no main flame with gas valve power.

Pilot Will Not Light or Goes Out

Solutions for pilot light not lighting or going out.

Main Flame Is Not Burning Properly

Troubleshooting Direct Ignition & Gas Gun Furnaces

Burner Motor Does Not Run

Diagnosing why the burner motor does not run.

Troubleshooting Furnace Operation Issues

Combustion Blower Runs - No Flame

Diagnosing blower running with no flame.

Ignitor Does Not Heat Up

Troubleshooting ignitor heating issues.

Burner Locks Out

Identifying causes for burner lockout.

Burner Short Cycling

Insufficient Heat

Circulation Air Blower Not Operating

Additional Oil Furnace Maintenance

Furnace Maintenance

Homeowner Maintenance

Serviceman Maintenance

Periodic service checks for servicemen at heating season start.

Wiring Diagrams

Gas Atmospheric Wiring Diagrams

Gas Atmospheric Furnace Wiring Diagrams

Standing Pilot with Induced Draft Wiring

Standing Pilot Induced Draft Wiring Diagrams

Replacement Parts List for MG and MM Series

Gas Furnace Parts List Continuation

Gas Furnace Parts List (Continued)

Replacement Parts List for MG(-)A and MM(-)A Series

Gas Furnace Parts List for MG(-)A and MM(-)A Series

Gas Furnace Parts List for MG/MM Series