Nordyne M3RL 080A BW User Manual

Direct Vent (SeaHed Combustion) Forced Air Gas Furnaces
M3RL Series 90+ Downfiow Condensing Furnace
For installation in:
I. Manufactured Homes
2. Park Models and Manufactured Buildings
3. Modular Homes/Buildings
WARNING:
FiRE OR EXPLOSION HAZARD
Failure to fol!ow safety warnings e×actly 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 mFYOU SMELL GAS
oDo not try to light any appliance.
oDo not touch any electrical switch; do not use any
phone in your building.
, Leave the building immediately.
oImmediately call your gas supplier from 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 sup-
plier.
RISQUE D'INCENDmE OU D'EXPLOSmON
Le non-respect des avertissements de s_curit_
pourrait entra_ner des blessutes graves, la
mort ou des dommages mat_rieJs.
- Ne pas entreposer ni utiliser de I'essence ni
d'autres vapeurs ou liquides inflammables dans Ic
voisinage de cet appareil, ni de tout autre apparei
-QUE FAmRE S'IL YA UNE ODEUR DE GAZ
oNe pas tenter d'allumer aucun appareil.
,Ne toucher a aucun interrupteur 61ectdque;
n'utiliser aucun t616phone dans le b_timent.
oE_vacuerI'immeuble immCdiatement.
, Appeler immCdiatement le foumisseur de gaz en
employant le t616phone d'un voisin. Respecter
la lettre les instructions du foumisseur de gaz.
oSi personne ne repond, appeler le service des
incendies.
- Uinstallation et I'entretien doivent Ctre effectues
par un installateur qualifie, un organisme de
service ou le fournisseur de gaz.
BW Models
BWT Models
WARNING:
Shoumd overheating occur, or the
gas suppty fail to shut off, shut
off the manual gas valve to the
appliance before shutting off the
electrical supply.
Improper installation, adjust-
ment, amteration, 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 mNSTRUCTmONS WroTHTHE HOMEOWNER.

Nordyne M3RL 080A BW Specifications

General

Brand	Nordyne
Model	M3RL 080A BW
Category	Furnace
Language	English

Summary

General

General Description

Overview of the M3 series gas furnaces, their type, and certifications.

Owner Information

Details about NORDYNE's history and commitment to manufactured home comfort.

Notice to Installer

Installation Standards

Outlines codes and standards applicable to furnace installation.

Location

Circulating Air Supply

Requirements for circulating air supply and warnings about combustion products.

Return Air Provisions

Guidelines for acceptable return air systems in manufactured homes.

Air Distribution Systems

Duct Connector Selection

Procedures for selecting and installing duct connectors for various furnace models.

Duct Installation

Guidance on installing ductwork, including floor and wall cut-outs.

Venting and Combustion Air Requirements

Venting Requirements

Installation requirements for sealed combustion air piping and vent systems.

Vent Pipe Material

Lists approved materials and standards for vent and combustion air pipes.

Drainage of Condensate from Furnace

Gas Supply and Piping

Leak Check

Procedures for testing gas connections for leaks using approved methods.

High Altitude Derate

Information on how to derate furnace input for elevations above 4,000 feet.

Conversion

To Remove the Burner Assembly

Step-by-step instructions for removing the burner assembly for conversion.

To Convert the Unit to the Alternate Gas

Detailed procedure for converting the furnace between natural gas and LP gas.

Lighting and Adjustment of the Appliance

Pressure Gauge Installation

Guidelines for installing pressure gauges to check gas line pressure.

Electrical Wiring

Line Voltage Wiring

Requirements for line voltage connections, grounding, and circuit protection.

Low Voltage Wiring

Instructions for connecting thermostats and low voltage wiring to the control board.

Ventilation

Start-Up and Adjustments

Start-Up Procedure

Step-by-step guide for initiating furnace operation and verifying its sequence.

Shut Down Procedure

Instructions for safely turning off the furnace in various scenarios.

Verifying Firing Rate

Method for checking and adjusting the furnace's firing rate for optimal performance.

Description of Components

Flame Sensor

Explains the function and location of the flame sensor.

Furnace Accessory Kits

Maintenance

Combustion Air and Vent System

Guidelines for inspecting the combustion air and vent system for damage or blockages.

Air Filter

Recommendations for changing or cleaning air filters regularly.

System Operation Information

Sequence of Operation

Detailed explanation of heating, cooling, and fan mode operating sequences.

Furnace Fails to Operate

Troubleshooting steps for common furnace operational issues and failure modes.

Installation/Performance Check List