Nordyne M3RL 060A BWT User Manual

Direct Vent (Sealed Combustion) Forced Air Gas Furnaces
M3RL Series 90+ Downflow Condensing Furnace
For installation in:
1. Manufactured Homes
2. Park Models and Manufactured Buildings
3. Modular Homes/Buildings
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could
result in serious injury, death or property
damage.
- Do not store or use gasoline or other flammable
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 yourgas supplierfrom a neighbor's
phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire
department.
-Installation and service must be performed by a
qualified installer, service agency, or the gas
supplier
ADVERTISSEMENT:
RISQUE D'INCENDIE OU D'EXPLOSION
Le non=respect des avertissements de securite
pourrait entrainer des blessures graves, la
mort ou des dommages materiels.
- Ne pas entreposer ni utiliser de I'essence ni
d'autres vapeurs ou liquides inflammables dans le
voisinage de cet appareil, ni de tout autre appareil.
-QUE FAIRE S'ILYA UNE ODEUR DE GAZ
• Ne pas tenter d'allumer aucun appareil.
• Ne toucher a aucun interrupteur electrique;
n'utiliser aucun t61ephone dans le b_timent.
• €:vacuer I'immeuble immediatement.
• Appeler immediatement le fournisseur de gaz en
employant le tel6phone d'un voisin. Respecter
la lettre les instructions du fournisseur de gaz.
• Si personne ne repond, appeler le service des
incendies.
-L'installation et I'entretien doivent Ctre effectues
par un installateur qualifie, un organisme de
service ou le fournisseur de gaz.
J
BW Models
J
BWT Models
WARNING:
Should overheating occur, or the
gas supply fail to shut off, shut
off the manual gas valve to the
appliance before shutting off the
electrical supply.
Improper installation, adjust-
ment, alteration, service or
maintenance can cause injury
or property damage. Refer to
this manual. For assistance or
additional information consult
a qualified installer, service
agency or the gas supplier.
LEAVE THESE INSTRUCTIONS WITH THE HOMEOWNER.

Nordyne M3RL 060A BWT Specifications

General

Brand	Nordyne
Model	M3RL 060A BWT
Efficiency	80% AFUE
Blower Motor	Multi-speed
Fuel Type	Natural Gas/Propane
Ignition Type	Hot Surface Ignition
Vent Diameter	4 inches
Weight	120 lbs
Heating Capacity	60, 000 BTU

Summary

General Furnace Information

Furnace Specifications / Airflow Data

Detailed specifications and airflow rates for different furnace models.

Installer Guidance

Notice to Installer

Guidance for installers on safe and efficient appliance operation.

General Description

Overview of M3 series gas furnaces, certifications, and installation types.

Owner Information and Responsibilities

Owner Information

Information about Nordyne's history and product development for manufactured homes.

Manufacturer Warranty, Owner's Responsibilities

Details homeowner's responsibility for proper setup and costs not covered by warranty.

Installation Standards and Safety

Installation Standards

Compliance requirements with applicable codes and industry standards for installation.

Installation of Carbon Monoxide Detectors

Requirements for CO detector installation, signage, and inspection.

Location and Venting Requirements

Location

Guidelines for furnace installation location, clearances, and surface requirements.

Venting and Combustion Air Requirements

Requirements for direct vent, sealed combustion furnaces and air supply.

Vent Pipe Material

Approved materials and standards for vent and combustion air pipes and fittings.

Location of Outdoor Terminations

Requirements for vent and combustion air intake termination locations and distances.

Air Distribution and Ducting

Circulating Air Supply

Standards for plenum and air duct installation for HVAC systems.

Duct Connector Selection

Procedures for selecting and installing duct connectors for various series.

Duct Installation

Procedures for locating and cutting floor openings and installing duct connectors.

Condensate Drainage

Gas Supply and Piping

Furnace Conversion

Conversion

Process for converting the furnace from natural gas to propane gas or vice versa.

Converting the Unit to Alternate Gas

Installing new orifices and adjusting the gas valve regulator cap for alternate fuel.

Appliance Lighting and Adjustment

Lighting and Adjustment of the Appliance

Step-by-step guide for lighting and adjusting the furnace for proper operation.

Electrical System

Electrical Wiring

General requirements for electrical connections adhering to local codes and NEC.

Line Voltage Wiring

Guidelines for supplying power from a dedicated branch circuit with correct protection.

Low Voltage Wiring

Instructions for installing thermostats and making low voltage connections to the control board.

Start-Up and Adjustments

Start-Up and Adjustments

Pre-start-up checks and verification of connections, polarity, and grounding.

Start-Up Procedure

Steps to follow for initiating furnace operation and verifying sequences.

Verifying Firing Rate

Procedure to verify and adjust the furnace firing rate to prevent over-firing.

Verifying and Adjusting Temperature Rise

How to measure and adjust temperature rise for optimal furnace performance.

Component Verification and Maintenance

Verifying Burner Operation

How to check burner operation, flame characteristics, and extinguishing.

Verifying Operation of the Supply Air Limit Switch

Procedure to test the supply air limit switch functionality.

Description of Components

Identification and function of key furnace components.

Maintenance

Recommendations for annual furnace checks and essential maintenance tasks.

System Operation and Troubleshooting

System Operation Information

General advice on furnace operation and maintenance for safety and performance.

Sequence of Operation

Detailed description of operating sequences for heating, cooling, and fan modes.

Furnace Fails to Operate

Troubleshooting steps for common furnace operation failures and safety switch checks.

Component Location and Diagrams

Component Location

Diagram showing the location of various furnace components with numbered labels.

Wiring Diagram

Electrical diagram illustrating field and factory wiring connections for furnace operation.