a. Regardless of the location, the return air opening into the closet shall not be less than specified in the appliance’s listing.

b. Means shall be provided to prevent inadvert-

ent closure by a flat object placed over the

return air opening when it is located in the floor

of the closet (versus the vertical front or side

wall).

c. The cross-sectional area of the return duct

system leading into the closet, when located

f. Noncombustible pans having 1" upturned flanges are located beneath openings in a floor duct system.

g. Wiring materials located in the return duct system shall conform to Articles 300-22 of the National Electrical Code (ANSI C1/NFPA- 70).

ROOF JACK

in the floor or ceiling shall not be less than 235

square inches (or 390 square inches for 5 ton

ready M1 Furnaces).

d. The total free area of openings in the floor or

ceiling registers serving the return air duct

PITCHED ROOF

SLANT DECK

FLASHING

"X" (SEE TABLE 1)

system must be at least 235 sq. in. At least

one register should be located where it is not

likely to be covered by carpeting, boxes and

other objects.

e. Materials located in the return duct system

must have a flame spread classification of

200 or less. This includes a closet door if the

furnace is in a closet.

 

Approx. Length

Model Number

Below Flashing

(F,S)AW(T)1523-(0,2,4)(A,S)

15" - 23"

(F,S)AW(T)2135-(0,2,4)(A,S)

21" - 35"

(F,S)AW(T)2747-(0,2,4)(A,S)

27" - 47"

CEILING

 

CAVITY

 

"A"

ROOF

 

OPENING

CEILING

Flue Pipe

Combustion

"B"

 

Air Pipe

Furnace

56" or 76"

Figure 6. Roof Jack Assemblies

(F,S)AW(T)3563-(0,2,4)(A,S)

35" - 63"

(F,S)AW(T)5195-(0,2,4)(A,S)

51" - 95"

 

 

S

AW

T

27 47 - 2

 

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLUE STEEL TYPE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A= ALUMINIZED

F= FLAT FLASHING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S=STAINLESS

 

 

 

 

 

 

 

 

 

 

MIN. ADJ.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLASHING

S= SLANT FLASHING

 

TYPE:

 

 

 

LENGTH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PITCH/12" RISE

AW= ALL WEATHER

 

BLANK=NON-TRANSIT

 

MAX. ADJ.

 

 

0=FLAT

 

 

 

 

 

 

T= TRANSIT MODE

 

LENGTH

 

 

 

 

 

 

 

 

 

 

 

2=2.5/12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4=4/12

All Weather Roof Jack Assemblies

MODEL

APPROX. ADJ.

NUMBER

LENGTHS*

PITCHED

ROOF

CEILING CAVITY

CEILING

ROOF JACK

SLANT DECK

FLASHING

"X" (SEE TABLE 6)

ROOF OPENING

CEILING OPENING

 

 

 

 

 

 

 

 

BELOW FLASHING

 

 

 

 

 

 

FO1323 -5

 

13" - 23"

 

 

 

 

 

 

 

 

 

 

 

FO2343 -5

 

23" - 43"

 

 

 

 

 

 

 

 

 

 

 

SO1835 -5

 

18" - 35"

 

 

 

 

 

 

 

 

 

 

 

SO2447 -5

 

24" - 47"

 

 

 

 

 

 

 

 

 

 

 

SO3263 -5

 

32" -63"

 

 

 

 

 

 

 

 

 

 

 

SO4895 -5

 

48" - 95"

 

 

 

 

 

 

 

 

 

 

 

SOT2442 -5

 

24" - 42"

 

 

 

 

 

 

 

 

 

 

 

SOT2745 -5

 

27" - 45"

 

 

 

 

 

 

 

 

 

 

 

SOT4581 -5

 

45" - 81"

 

 

 

 

 

 

 

 

 

 

 

FOT2846 -5

 

28" - 46"

 

 

 

 

 

 

 

S O T

27 45 -5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S=

 

SLAT FLASHING

T= TRANSIT

 

 

 

 

5 = 5" FLUE DIA.

F= FLAT FLASHING

MODE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TYPE

 

 

MAX. ADJ.LENGTH

 

 

O= TYPE; STANDARD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H= HIGH WIND

 

MIN. ADJ.

 

 

A= ARCTIC ROOF JACK

LENGTH

Table 5. Roof Jack Assemblies

Figure 7. Example of Flat Jack

with Flashing

ROOF JACK WITH 2 1 2 /12 SLANT FLASHING

2 1 2 /12

SLANT DECK

5/12 ROOF SLOPE

Figure 8. Example of 2½/12 Slant Jack

with Flashing

7

Page 7
Image 7
Nordyne M1M, M1G, M1B, M1S owner manual All Weather Roof Jack Assemblies, 27 45

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.