Location, Circulating AIR Supply, Minimum Clearances

CE générateur d'air chaud doit être installé conformément aux instructions du fabricant et aux codes locaux. En l'absence de code local, respecter la norme ANSI Z223.,1, institulé Na- tional Fuel Gas Code ou les codes d'installation CAN/GCA-B149.

The National Fuel Gas Code is available by writing:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

NFPA publications are available by writing:

National Fire Protection Association

Batterymarch Park

Quincy, ME 02269

LOCATION

The furnace must be installed on a level sur- face, and as close to the center of the air distribution system as possible. See Figure 1 for overall dimensions to determine the re- quired clearances in hallways, doorways, stairs, etc. to allow the furnace to be moved to the installation point. The furnace must be in- stalled so that all electrical components are protected from water.

Minimum clearances to combustible materials are listed in Table 4. Access for positioning and servicing must be considered when locating the unit.

This furnace is certified for use on wood flooring. The furnace must be installed on a solid surface and must be level front-to-back and side-to-side. This furnace must not be installed directly on carpeting, tile, or any com-

	CLOSET	ALCOVE
ALL MODELS	Inches	Inches
Front	1*	1*
Back	0	0
Sides	0	0
Vent	0	0
Top	6	6
Duct (Plenum)
w/ Coil Box	0	0
w/o Coil Box	1/4	1/4
(within 3 feet)

*Note: For 1” clearance, use a fully louvered door with at least 400 square inches of free airflow area.

Table 4. Minimum Clearances

bustible material other than wood flooring. The furnace may be installed on combustible floor- ing when installed on a Nordyne duct connec- tor (see Table 5).

The ductwork within 3 feet of the furnaces without the A/C coil box must be installed such that surfaces are at least 1/4" from combustible materials.

When installed in a residential garage, the fur- nace must be positioned so the burners and the source of the ignition are located no less than 18 inches above the floor and protected from physical damage by vehicles.

CIRCULATING AIR SUPPLY

!WARNING:

Products of combustion must not be allowed to enter the return air openings of the furnace or the circulating air supply. Failure to prevent products of combustion from being circulated into the living space can create potentially hazardous conditions including carbon monoxide poisoning that could result in personal injury or death.

The floor or platform on which the furnace is mounted must provide sound physical support of the furnace with no gaps, cracks, or sagging between the furnace and the floor or platform.

The circulating air ductwork must not be connected to any other heat producing device such as a fireplace insert, stove, etc.

GENERAL

Plenums and air ducts must be installed in accordance with the Standard for the Installa- tion of Air Conditioning and Ventilating Systems (NFPA No. 90A) or the Standard for the Instal- lation of Warm Air Heating and Air Conditioning Systems (NFPA No. 90B).

M3RL specifications

The Nordyne M3RL is a high-efficiency gas furnace designed for residential heating applications, characterized by its robust performance and advanced technologies. It is part of Nordyne's distinguished lineup, which emphasizes reliability and comfort in home heating systems. The M3RL model is particularly notable for its focus on energy efficiency, making it an attractive option for homeowners looking to reduce their energy expenses while maintaining optimal heating levels.

One of the standout features of the Nordyne M3RL is its high Annual Fuel Utilization Efficiency (AFUE) rating, which often exceeds 80%. This efficient design ensures that more of the fuel consumed is converted into usable heat for the home. By employing a variable-speed blower, the M3RL enhances comfort by allowing for more precise control over air circulation, contributing to better temperature consistency throughout the living space.

The M3RL utilizes advanced multi-stage heating technology, allowing the system to operate at different capacities depending on the heating demand. This means it can run at lower settings during milder weather, which not only saves energy but also reduces wear and tear on the equipment, extending its lifespan. The furnace also includes a reliable ignition system that ensures quick and safe starts, eliminating the inefficiencies associated with older pilot light systems.

Another important characteristic of the Nordyne M3RL is its acoustical insulation, which minimizes operational noise. The quiet operation is particularly valued in residential settings, where noise pollution can be disruptive. Additionally, the furnace features a compact design, making it easy to install in a variety of spaces, including tight basements or utility rooms.

The M3RL model is also equipped with a smart control system that interfaces seamlessly with modern thermostats, offering homeowners the ability to program their heating schedules and optimize energy usage. This integration with smart home technology positions the M3RL not just as a heating solution, but as a component of a more comprehensive home energy management system.

In conclusion, the Nordyne M3RL gas furnace represents a blend of efficiency, advanced technology, and user-friendly features. Its high AFUE rating, multi-stage heating capability, quiet operation, and smart technology integration make it a reliable choice for homeowners aiming to enhance their comfort while minimizing energy costs. This furnace is a testament to Nordyne's commitment to innovation in the HVAC industry.