Nordyne M1SA 066 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 M1SA 066 Specifications

General

Brand	Nordyne
Model	M1SA 066
Category	Furnace
Language	English

Summary

MANUFACTURER WARRANTY AND OWNER RESPONSIBILITIES

Warranty Details and Owner Duties

INSTALLATION STANDARDS AND DIMENSIONS

Compliance with Construction Standards

UNIT LOCATION AND CLEARANCES

FURNACE INSTALLATION PROCEDURES

TRANSIT-MODE VENTING SYSTEM INSTALLATION

ELECTRICAL WIRING AND CONNECTIONS

Power Supply Wiring

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

Thermostat Wiring

Guidance on connecting thermostat wires to the furnace control system.

FUEL PIPING REQUIREMENTS

Gas Piping Installation

FURNACE LIGHTING AND SHUTDOWN

Safety Before Lighting

Critical safety precautions to follow before attempting to light the furnace.

Standing Pilot Lighting Instructions

Step-by-step guide for manually lighting a furnace with a standing pilot.

Turning Off Gas Supply

Procedure for safely shutting off the gas supply to the furnace.

Direct Ignition Operation

Operating instructions for furnaces with automatic direct ignition systems.

Oil and Gas Gun Furnace Operation

SERVICE GUIDE AND ADJUSTMENTS

Burner Adjustments and Settings

CONTROL MODULE STATUS INDICATORS

TROUBLESHOOTING COMMON ISSUES

Burner Motor and Ignition Problems

Addresses issues like burner motor not running or ignitor not heating up.

Flame and Gas Flow Issues

Troubleshoots problems with main flame ignition, gas flow, and short cycling.

Oil Gun Furnace Troubleshooting

Guides on diagnosing and resolving issues with oil gun furnace ignition and lockout.

ROUTINE MAINTENANCE PROCEDURES

Homeowner Maintenance Tasks

Serviceman Recommended Maintenance

WIRING DIAGRAMS

M1GH Atmospheric Furnace Wiring

Electrical schematic for M1GH atmospheric furnaces, detailing component connections.

M1GH Induced Draft Furnace Wiring

Wiring diagram for M1GH furnaces with induced draft, showing system connections.

M1G Atmospheric Furnace Wiring (A/C Ready)

Wiring diagram for A/C ready M1G atmospheric furnaces with multiple blower speeds.

M1G Induced Draft Furnace Wiring (A/C Ready)

M1M Direct Ignition Furnace Wiring

M1(S,B) Furnace Series Wiring