Nordyne M1GB 056 User Manual

For installation in:
1. Manufactured Homes
2. Recreational Vehicles, Park Models,
Manufactured Buildings
3. Modular Homes/Buildings
WARNING:
If the information in this manual is not
followed exactly, a fi re or explosion
may result causing property damage,
personal injury or loss of life.
– Do not store or use gasoline or
other fl ammable vapors and liquids
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 build-
ing.
• Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas sup-
plier, call the fi re department.
– Installation and service must be
performed by a qualifi ed installer,
service agency or the gas sup-
plier.
WARNING:
Should overheating occur, or the gas
supply fail to shut off, shut off the man-
ual gas valve to the appliance before
shutting off the electrical supply.
WARNING:
Improper installation, adjustment,
alteration, service or maintenance
can cause injury or property damage.
Refer to this manual. For assistance
or additional information consult a
qualifi ed installer, service agency or
the gas supplier.
Owners Manual/Installation Instructions
Series M1B, M1G, M1M and M1S
Downfl ow, Direct Vent (Sealed Combustion)
Forced Air Gas and Oil Furnaces
LEAVE THESE INSTRUCTIONS WITH THE HOMEOWNER.

Nordyne M1GB 056 Specifications

General

Model	M1GB 056
Heating Capacity	56, 000 BTU
Efficiency Rating	80% AFUE
Blower Type	Multi-speed
Blower Motor	PSC
Ignition Type	Hot Surface Ignition
Vent Size	4 inches
Weight	120 lbs
Fuel Type	Gas

Summary

Manufacturer Warranty, Owner's Responsibilities

Installation Standards

Roof Jack Selection

Duct Connector Selection

Installation

Installation of Transit-Mode Venting System

Electrical Wiring

Fuel Piping

Lighting and Shutdown General-All Models

Safety Information

Provides critical safety warnings and instructions to follow before lighting the furnace.

Lighting Instructions for Standing Pilot Models

Step-by-step instructions for safely lighting pilot-equipped furnaces.

To Turn Off Gas to Appliance

Instructions for safely turning off gas supply to the appliance.

Sequence of Operation for Standing Pilot

Describes the operational sequence for furnaces with a standing pilot ignition system.

Sequence of Operation for Standing Pilot w/Induced Draft Blowers Models

Details the operational sequence for standing pilot furnaces with induced draft blowers.

General-Direct Ignition Models

General safety information and operating instructions for direct ignition models.

Operating Instructions for M1M Models With Direct Ignition

Specific operating instructions for M1M models equipped with direct ignition.

To Turn Off Gas Appliance

Procedure for safely turning off gas supply to the appliance.

Sequence of Operation for M1M Models With Direct Ignition

Explains the operational sequence for M1M models featuring direct ignition.

Operating Instructions for Oil and Gas Gun Furnace

Instructions for operating oil and gas gun furnaces, including specific model details.

Oil Gun Model

Details regarding M1 oil gun furnaces, including conversion and ignition.

Sequence of Operation for Oil Gun Models

Describes the operational sequence for oil gun furnaces with Honeywell or Beckett controls.

Gas Gun Models

Information for gas gun models, focusing on manual ignition avoidance.

Sequence of Operation for Gas Gun Models

Explains the ignition sequence for gas gun furnaces.

To Turn Off Gas/Oil Appliance

Procedure for safely shutting off gas or oil supply to the appliance.

The Furnace Controls and Functions

Service Guide

Combustion Air

Gas Conversion

Troubleshooting

Main Burner Does Not Come On

Troubleshooting steps for when the main burner fails to ignite or operate.

Gas Valve Powered (24 volts)- No Main Flame

Troubleshooting steps when the gas valve receives power but no main flame is produced.

Troubleshooting - Direct Ignition Furnaces Including Gas Gun

Main Flame Is Not Burning Properly

High Gas Bills

Burner Motor Does Not Run- Thermostat Calls For Heat

Combustion Blower Does Run - No Flame

Control Module Is Powered- Ignitor Does Not Heat Up

120 Volts Is Available At AMP Plug- Ignitor Does Not Heat Up

Main Flame Ignites- Burner Locks Out

Burner Short Cycling -- Thermostat Calls for Heat, Limit Switches Closed

24 Volts Supplied To Gas Valve During Ignition

No Main Gas Flow

Burner Operates— Insufficient Heat

Troubleshooting - Oil Gun

Honeywell R7184 or Beckett 7505 controls only.

Burner does not start with a call for heat.

Burner starts and then locks out on safety...

Maintenance

Wiring Diagrams