Nordyne SERIES M1B Manuel D’Utilisation

9

FLOOR CUT-OUT

FOR STANDARD

DUCT CONNECTORS

CL

CL

C

L

24" 

23 1/4"

21 3/4"

14 1/2"

2 1/4"

2 3/4"

20"

CUT-OUT FOR

 OPTIONAL

COOLING COIL

REAR WALL OF CLOSET OR ALCOVE

1 3/4"

2"

3/4"

CL

CL

CL

10"

CL

FURNACE OUTLINE

14 1/2" 

ALT FUEL-LINE

ENTRY 1 1/4" Dia.

FURNACE

OUTER

DOOR

FUEL

LINE

1 3/4"

3/4"

1 7/8"

2 7/8"

FLOOR

CUT-OUT FOR

ROUND DUCT

(14 1/4” DIAMETER)

CL

CL

CL

CL

24" 

23 1/4"

21 3/4"

20"

CUT-OUT FOR

 OPTIONAL

COOLING COIL

ALT FUEL-LINE

ENTRY 1 1/4" Dia.

FURNACE

OUTER

DOOR

REAR WALL OF CLOSET OR ALCOVE

FUEL

LINE

1 3/4"

2"

3/4"

CL

CL

10"

FURNACE OUTLINE

1 3/4"

10"

3/4"

1 7/8"

2 7/8"

CL

Bend tabs 

up 90°

Mounting Plate

Duct 

Connector

Connector

Tabs

Supply 

Air Duct

Hole for

Gas Line

Wood Floor

7/8” / (22)

901987A

904008

2” / (51)

901988A

904009

4-1/4” / (108)

901989A

904010

6-1/4” / (159)

901990A

904011

8-1/4” / (210)

901991A

904012

10-1/4” / (260)

901992A

904013

12-1/4” / (311)

901993A

904014

Note: Dimensions shown as Inches / (Millimeter)

“X”

FLOOR OPENING

FLOOR

CAVITY

SUPPLY AIR DUCT

Standard Duct Connector Installation
The standard duct connector is designed for use 
on ducts 12” in width. However ducts narrower 
than 12” may not allow suffi cient clearances 
for this type of installation. For an alternate 
installation method, see page 10.

1. Center the duct connector in the fl oor opening 

with bottom tabs resting on top of the supply 
air duct.

2. Mark the cut-out area on the supply air duct by 

tracing around the connector tabs (Figure 8) of the 
duct connector.

3. Remove the duct connector and cut out the 

marked area of the supply air duct 1/4” larger 
the actual cutout drawn.

4. Install the duct connector back in the fl oor 

opening with the bottom tabs extending into 
the supply air duct.

5. Install the mounting plate (Figure 8) under 

the back side of the duct connector. Align the 
screw holes in both components.

6. Secure the duct connector and the mounting 

plate to the wood fl oor with appropriate size 
screws.

7. Bend the connector tabs on the bottom of 

the duct connector upwards and as tight as 
possible against the supply air duct.

8. Bend both tabs on the mounting plate up 90°. 

See Figure 10, (page 10)

9. Seal all connections with industrial grade 

sealing tape or liquid sealant. 

  NOTE:  Requirements for sealing ductwork 

vary from region to region. Consult with local 
codes for requirements specifi c to your area.