Nordyne SERIES M1B Manuel D’Utilisation

6

“A” Model 

w/o Coil 

Cabinet

“B” Model 

w/Coil 

Cabinet

Applications
M1 Series gas and M5 Series oil furnaces are 
listed direct vent (sealed combustion), downfl ow 
heating appliances for manufactured (mobile) 
homes, recreational vehicles, and for use in 
residential/modular/commercial construction. 
The furnace must be located so that venting can 
be properly achieved.

Air conditioning may be added to structures with 
M1/M5 series furnaces using air conditioning or 
conventional units. This Installation Instruction 
manual includes special requirements for 
incorporation of air conditioning equipment to the 
M1/M5 series of furnaces. See Tabel 12 (page 32).

Multi-speed blower assemblies shown in Table 
2, have been certifi ed for fi eld installation in M1/
M5 Series furnaces. 

Unit Location
•  The furnace shall be appropriately located to 

the supply and return air distribution system 
(See Page 7). Sides and back of the furnace 
may be enclosed by wall framing. See Minimum 
Clearances (page 2) and Figures 1- 3.

•  The furnace installation is only intended for 

free air return through the furnace door louvers. 
DO NOT connect a ducted return air system 
directly to the furnace. Improper installation 
may create a hazard and damage equipment, 
as well as void all warranties.

• Furnace may be installed on combustible 

flooring when using NORDYNE Duct 
Connectors. See pages 9 & 10.

•  When installed in a residential garage, the 

furnace must be positioned so the burners and 
the source of the ignition are located no less 
than 18 inches above the fl oor and protected 
from physical damage by vehicles.

903773

10 x 8

1/4

2, 2½ & 3

903413

11 x 8

1/2

2, 2½, 3 & 4

903890

11 x 8

3/4

2, 2½, 3, 4 & 5

Removable access 
panel should be 
installed above
furnace door frame 
to access roof jack

Nearest
Wall or
Partition

18"

(457 mm)

6" (152 mm)

Top Clearance

0" Side
Clearance
to Furnace
Cabinet

6" (152 mm)

Top Clearance

0" Side
Clearance
to Furnace
Cabinet

Provide min. 235
sq. in. (1516 cm  )
open free area in
front or side wall

2

or
In closet
door
located
at top,
center
or bottom

CLOSET DOOR

6" (152 mm)

Top Clearance

Provide min. 250
sq. in. (1613 cm  )
open free area in
front or side wall

2

a fully
louvered
door may
be used

CLOSET DOOR

6"

(152 mm)

1"

(25 mm)

0" Side
Clearance
to Furnace
Cabinet

or
in closet
door