Nordyne MGBB-070A AA FC-01 User Manual

Thank you for visiting HVACmanuals.com. Whether its residential, commercial
or mobile homes, we’re your HVAC info source. If you are searching for
information regarding a specific HVAC unit or part, please e-mail us your request
at info@HVACmanuals.com. If we don’t have the information, we can put it on
our search list.
Some of the info we offer in our downloads can be quite old. It’s rare that prices
for parts are listed in manuals, but if you see any please ignore them as the
prices are probably obsolete.
Most manuals contain parts lists and diagrams. The older the unit, the more
you’ll find obsolete parts. In same cases the parts may still be available, but
under a new part number. In other cases a generic part may be suitable for use.
For help in finding parts, please visit our parts store at
www.HVACpartstore.com.
Please note that specifications and illustrations are subject to change without notice and without
incurring obligations.
The information contained in this download is for the use of qualified individuals who have been
trained to interpret this data. All repairs on HVAC equipment should be performed by a qualified
technician. In some states, counties or cities, the law states that repairs must only be done by
licensed individuals. Persons not legally or technically qualified should not attempt to interpret
this information or perform any repairs
.

Nordyne MGBB-070A AA FC-01 Specifications

General

Brand	Nordyne
Model	MGBB-070A AA FC-01
Category	Furnace
Language	English

Summary

Manufacturer Warranty and Owner Responsibilities

Installation Standards

Installation

Cut Floor Opening and Fuel Line Hole

Instructions for cutting floor openings and fuel line holes.

Cut Ceiling and Roof Openings

Procedure for cutting ceiling and roof openings for the furnace.

Cut Duct Opening

Steps for cutting the duct opening for the furnace connection.

Install Furnace Mounting Plate

Instructions for installing the furnace mounting plate.

Install Duct Connector

Steps for installing the furnace duct connector.

Install Furnace

Procedure for placing and securing the furnace onto the duct connector.

Install Roof Jack

Steps for installing the roof jack assembly and connecting flue pipes.

Transit-Mode Venting System Installation

Electrical Wiring

Connect Power Supply Wires

Instructions for connecting the main power supply wires to the furnace.

Connect Thermostat Wires

Fuel Piping

Lighting and Furnace Shut Down

Standing Pilot Lighting Instructions

Detailed steps for lighting pilot models.

Turn Off Gas Appliance Procedure

MM-Models Direct Ignition Operation

Turning Off Gas Appliance

MM Models Direct Ignition Sequence

Oil and Gas Gun Furnace Operation

Oil Gun Model

Gas Gun Furnace Sequence

Service Guide

Gas Conversion

Atmospheric/Direct Ignition Conversion

Troubleshooting Standing Pilot Models

Main Burner Failure

Troubleshooting steps when the main burner does not ignite.

No Main Flame with Gas Valve Power

Issues when gas valve has power but no main flame.

Pilot Light Issues

Steps to diagnose pilot light issues.

Improper Main Flame

Troubleshooting steps for improper main flame.

Troubleshooting Direct Ignition Furnaces

Burner Motor Not Running

Troubleshooting when the burner motor doesn't run.

Blower Runs, No Flame

Issues when blower runs but no flame is present.

Ignitor Not Heating

Troubleshooting ignitor not heating.

Control Module Status Indicator

Ignitor Not Heating (120V Present)

Steps when 120V is present but ignitor is not heating.

Burner Lockout After Ignition

Diagnosing burner lockout after ignition.

Burner Short Cycling

No Gas Flow with 24V

No gas flow when 24V supplied.

Insufficient Heat Output

Flame Without Motor Running

Blower Not Operating with Burner

Additional Oil Furnace Maintenance

Maintenance

Serviceman Maintenance

Wiring Diagrams

Replacement Parts List

MG/MM Series Gas Furnace Parts List Table

MG/MM Series Gas Furnace Parts List Table (Cont.)

Replacement Parts List MG/MM(-)A Series

MG/MM(-)A Series Gas Furnace Parts List Table