Nordyne M5SB 066 User Manual

Series M1B, M1M & M5S
Downfl ow, Direct Vent (Sealed Combustion)
Forced Air Gas & Oil Furnaces
For installation in:
• Manufactured Homes
• Recreational Vehicles, Park Models,
& Manufactured Buildings
• Modular Homes / Buildings
DO NOT DESTROY THIS MANUAL. KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
FIRE OR EXPLOSION HAZARD
• Failure to follow safety warnings exactly
could result in serious injury or property
damage.
• Installation and service must be performed
by a qualifi ed installer, service agency or the
gas supplier.
• 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 building.
• Leave the building immediately.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call
the fi re department.
WARNING:
RISQUE D’INCENDIE OU D’ EXPLOSION
• Le non-respect des avertissements de
sécurité pourrait entraîner des blessures
graves, la mort ou des dommages matériels.
• L’installation et l’entretien doivent être
effectués par un installateur qualifi é, un
organisme de service ou le fournisseur de
gazstaller, service agency or the gas supplier.
• Ne pas entreposer ni utiliser de l’essence ni
d’autres vapeurs ou liquides infl ammables
dans le voisinage de cet appareil, ni de tout
autre appareil.
QUE FAIRE S’IL Y A UNE ODEUR DE GAZ
• Ne pas tenter d’allumer aucun appareil.
• Ne toucher à aucun interrupteur électrique;
n’utiliser aucun téléphone dans le bâtiment.
• Évacuer l’immeuble immédiatement.
• Appeler immédiatement le fournisseur de
gaz en employant le téléphone d’un voisin.
Respecter à la lettre les instructions du
fournisseur de gaz.
• Si personne ne répond, appeler le service des
incendies.
AVERTISSEMENT
INSTALLATION INSTRUCTIONS

Nordyne M5SB 066 Specifications

General

Brand	Nordyne
Model	M5SB 066
BTU	66000
Input BTU/h	66000
Output BTU/h	52800
Blower Motor Type	PSC
Vent Size	4 inch
Flue Size	4 inch
Efficiency	80%
Fuel Type	Gas
Width	17.5 inches

Summary

IMPORTANT SAFETY INFORMATION

Fire or Explosion Hazard Warnings

Highlights risks of fire and explosion from flammable vapors and improper use.

Appliance Submersion Warning

Instructs to call a technician if the appliance has been submerged under water.

REQUIREMENTS & CODES

GENERAL INFORMATION

Component Alteration and Repair Prohibitions

Warns against altering, modifying, or repairing furnace components due to safety risks.

CIRCULATING AIR REQUIREMENTS

Combustion Air Safety and Return Air

Warns on combustion air safety and details return air connection requirements.

FURNACE INSTALLATION

Installing the Furnace Unit onto Duct Connector

Details steps for placing and securing the furnace onto the duct connector and mounting plate.

ROOF JACK INSTALLATION

Installing the Roof Jack Assembly and Flashing

Details steps for applying sealant, connecting the jack, and securing flashing for weather tightness.

ELECTRICAL INFORMATION

Electrical Safety Warnings and Precautions

Emphasizes safety precautions regarding electric shock, fire, and explosion hazards during service.

Grounding

Electrical Grounding Requirements and Safety

Stresses proper grounding for safety, warning against using gas piping.

FUEL SUPPLY & PIPING

Leak Check

Testing Gas Connections for Leaks Safely

Details testing gas connections with a soap solution to detect leaks.

STARTUP & ADJUSTMENTS

Pre-Lighting Safety Precautions and Startup

Lists critical safety checks and startup procedures before lighting the furnace.

Emergency Shutdown Procedures

Advises on emergency shutdown procedures for overheating or gas supply failure.

Operating Instructions: Direct Ignition Furnaces (M1M Models)

M1M Model Startup and Gas Shut-Off

Details startup procedure and safe gas shut-off for M1M direct ignition furnaces.

Operating Instructions: Oil Gun Furnaces (M5S Models)

M5S Model Startup Procedure

Explains how to start M5S oil gun furnaces, noting automatic ignition.

Operating Instructions: Gas Gun Furnaces (M1B Models)

M1B Model Startup Procedure

Guides on starting M1B gas gun furnaces, emphasizing safety checks.

OPERATING SEQUENCE

Direct Ignition (M1M) Operating Sequence

Describes the operational sequence for direct ignition furnaces upon a call for heat.

Oil Gun (M5S) Operating Sequence

Outlines the operating sequence for oil gun furnaces with Honeywell or Beckett controls.

Gas Gun (M1B) Operating Sequence

M1B Gas Gun Ignition Sequence and Lockout

Details the ignition sequence for M1B gas gun furnaces, including lockout conditions.

FURNACE CONTROLS & FUNCTIONS

TROUBLESHOOTING

Burner Motor and Combustion Blower Issues

Diagnoses problems with burner motor not running or combustion blower issues.

Ignitor Not Heating Up Troubleshooting

Details checks for the ignitor, including power supply, resistance, and continuity.

Oil Gun Burner Troubleshooting

Oil Gun Burner Start and Lockout Issues

Control Module Status Indicators

M1M, M1B, and M5S Series LED Status Codes

MAINTENANCE

WIRING DIAGRAM: M1M Models

M1M Model Electrical Wiring Diagram

WIRING DIAGRAM: M1B & M5S Models

M1B and M5S Model Electrical Wiring Diagram

INSTALLATION / PERFORMANCE CHECK LIST

Electrical System Checks Checklist

Gas System Checks Checklist

Combustion Air & Venting System Checks