bending of the duct connector tabs at the side(s) of the duct. (See Figure 18).

1.Score and cut the top of the metal duct as indicated in Step 1 or Step 2. With Step 1 choice, also cut out the metal from the shaded area “A”.

2.Fold the duct flap “B” up, (See Step 3).

3.At the front-to-back of duct run (Area “A”), bend the duct tabs and secure them directly to the duct.

4.At Area “B”, bend the duct tabs up and back over, around the duct connector, (See Step 3).

5.Fold/form the duct flap against the side of the duct connector and attach as shown, (See Step 4). Use three (3) staples (minimum) on each duct flap OR, if a 2X block/joist is not provided, use two (2) sheet metal screws (minimum) on each duct flap. An alternate attachment method is acceptable, as long as the duct connector is securely attached.

6.Tape the duct flap edges with an approved tape for a leak-free joint.

INSTALL FURNACE

a. Remove furnace outer door(s) and bottom fuel line knockout.

b. Place furnace onto duct connector and cen- ter with floor opening.

c.Slide onto mounting plate. (Bottom rear slots on furnace should engage with mounting plate tabs.)

d.Secure front with one (1) fastener at each corner (See Figure 19 or 20).

NOTE: Additional fasteners may be used at rear, sides or through door frame, as desired, to secure furnace to closet or alcove framing.

INSTALL ROOF JACK

Apply caulking compound on underside of roof flashing to form a continuous strip at least 3/8" wide (see Figure 21) around the underside of the perimeter of the flashing. Connect Roof Jack Assembly to the furnace. Insert telescop- ing Roof Jack Assembly through the opening cut on the roof. Connect flue pipe to flue collar of furnace. Connect combustion air pipe to furnace collar with sheet metal screw (See Figure 22). It is recommended that the connec- tion of the combustion air pipe to the furnace be made before the flashing is secured to the roof to maintain alignment of roof jack and furnace connections.

NOTE: For replacement furnaces, be sure the inner flue pipe connects over the furnace vent collar. DO NOT use a smaller diameter inner flue pipe which could slide inside the fur- nace vent collar and restrict the flow of furnace flue products.

Attach Roof Flashing: If necessary, shift roof flashing slightly in the roof opening so that assembly is in good alignment with furnace. Press down firmly over caulking on roof flashing to make the seal with roof water tight. Secure flashing with appropriate fasteners. As an

STEP 1.

 

STEP 2.

 

Fold Back Flap "B"

Fold Back Flap"B"

 

 

Cut- Out

"B"

Area "A"

"A"

"A"

 

"B"

Cut- Out Area"A"

Cut Lines

"B"

"B"

Duct

Top of Duct

Fold Back Flap "B"

Bend Duct Connector Tabs Up and Over- (along length of duct)

Fold Back Flap"B"

Staple Folded Duct

Flap (typ) to side of Duct

Connector

 

Duct

Duct

 

Flap "B"

 

 

 

 

STEP 3.

 

STEP 4.

Duct

Figure 18.

13

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Nordyne M1B, M1G, M1S, M1M owner manual Install Furnace, Install Roof Jack
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M1M, M1S, M1B, M1G specifications

Nordyne, a renowned player in the HVAC industry, has introduced a range of high-efficiency gas furnaces, including the M1S, M1G, M1B, and M1M models. Each of these furnaces is designed to provide efficient heating solutions tailored to the needs of homeowners.

The M1S series is well-known for its reliability and performance. It features a single-stage heating process that delivers consistent warmth to any space. With its multi-speed blower, the M1S ensures quiet and comfortable airflow, adapting seamlessly to varying temperature demands. Its robust construction coupled with an energy-efficient design makes it an ideal choice for those looking for dependable heating without sky-high utility bills.

The M1G model steps it up with a two-stage heating system that offers enhanced comfort and efficiency. By operating at a lower speed during milder conditions, the M1G can effectively reduce energy consumption while still maintaining a cozy environment. It is equipped with a variable-speed blower that not only enhances efficiency but also minimizes noise, making it perfect for residential areas. The M1G is designed with advanced safety features, including an integrated control board that monitors furnace functions to ensure optimal performance.

For those seeking a budget-friendly option without compromising on quality, the M1B model provides a solid performance with its straightforward, reliable single-stage heating. While it may lack some of the advanced features found in higher-end models, the M1B is built for ease of use with straightforward controls and maintenance, making it a great option for families.

The M1M model integrates cutting-edge technology with a focus on maximum efficiency. Featuring a modulating gas valve, this model can adjust its output based on real-time heating requirements. This adaptability ensures that the furnace operates at peak efficiency, significantly lowering energy bills and improving overall comfort. The M1M also boasts advanced diagnostic capabilities that allow for easy troubleshooting, thus reducing maintenance time and costs.

In summary, Nordyne's M1 series furnaces—M1S, M1G, M1B, and M1M—offer a range of options to meet diverse heating needs. With technologies designed for efficiency, reliability, and comfort, Nordyne continues to solidify its reputation as a leader in the HVAC market, providing homeowners with effective heating solutions tailored to their lifestyles and budgets.
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