Vent Configuration to

 

Provide 12" Minimum

 

height above

 

 

Snow Level.

12" Min.

 

 

 

 

19" Max.

 

Outside

Support

12" Above

Wall

 

 

Normally

 

 

 

 

Expected

 

1/2"

Snow

 

Level

 

Armaflex

 

 

 

Insulation or

 

 

Equivalent

 

 

(if required)

 

Figure 18. Alternate Horizontal

Vent Installation

Exhaust Vent

 

 

 

Option B

 

 

 

Mounting Kit

 

 

Exhaust Vent

Faceplate Secured

 

 

to Wall with Screws

12" Min.

 

Option A

Combustion

36" Max.

8" Min.

 

Air Inlet

 

 

 

Exhaust Vent

 

 

 

Option C

 

 

 

 

 

12" min.

 

 

 

36" max.

Grade

 

 

 

 

12" Min.

 

Level

 

36" Max.

 

or Normal

 

 

12" Min. to

Snow

7" Min.

 

 

 

Normal Snow Level

 

 

 

 

 

 

Inlet

Exhaust

Figure 19. Exhaust and Combustion Air

Pipe Clearances

DRAINAGE OF CONDENSATE FROM FURNACE

!WARNING:

The condensate produced by the furnace must be drained. Do not connect a water supply to the drainage hose of the furnace.

NOTE: The condensate drain should be pro- tected from freezing when in unheated spaces.

The furnace is supplied with an internal conden- sate drain trap.

!CAUTION:

Do not install additional traps in the condensate drain.

The condensate drain may exit through the left side panel, the right side panel, or through the left or right hole on the bottom panel. (See Figure 21). Ensure that the flexible drain hose is not kinked.

The condensate should drain from the plastic collector box (location A in Figure 21) as drop- lets or a small stream. If you notice the furnace has operated for more than 5 minutes without draining or the red status light on the control board is pulsing a 2-blink code follow the steps below.

A= 12" Above Roof or

5" Min.

36" Max.

Snow Accumulation Level

Exhaust

 

Elbow

Vent

 

 

Combustion

 

Air Intake 1"

10" Min.

 

A

Exhaust

Plumbing Vent

Roof Boot

(Typ. Both Pipes)

Note: If terminations meet- ing these vertical require- ments exceed the maximum height for safe transit, the vent and combustion air in- takes may be shipped with the home for assembly on site. The furnace must be labeled to notify the installer/ user not to use the furnace until the vent and combus- tion air intake terminations are installed.

Figure 20. Vertical Vent Termination

19

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Image 19
Nordyne M3RL installation instructions Drainage of Condensate from Furnace, Alternate Horizontal Vent Installation

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.