Nordyne M1GH 056 Installation Instructions And Owner's Manuals page 9
M1b series, m1g series, m1m series and m1s series downflow, direct vent (sealed combustion) forced air gas and oil furnaces
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- Owner's manual and installation instructions (40 pages) ,
- Owner's manual & installation instructions (40 pages)
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C L
ALT. FUEL
LINE HOLES
C L
FUEL LINE
HOLE
Figure 12. Closet or Alcove
REAR WALL OF CLOSET OR ALCOVE
FLOOR CUT-OUT
FOR DUCT CONN.
C L
C L
1-1/4" D.
ALT FUEL-LINE
ENTRY
Figure 13. Cut-Out Locations
CUT DUCT OPENING
a. Place duct connector through the floor opening with
bottom tabs resting on top of the supply air duct.
b. Center duct connector and push back against rear
edge of floor opening.
c. Mark cut-out location (tab area) and remove duct
connector.
d. Cut out duct opening 1/4" larger than area marked.
INSTALL FURNACE MOUNTING PLATE
a. Place mounting plate (supplied within duct connector)
at rear of the floor opening (See Figure 15).
C L
CEILING AND ROOF
OPENINGS
13-1/2"
10"
C L
FLOOR
OPENING
23 -1/4"
20"
14-1/2"
C L
2-3/4"
FLOOR CUT-OUT
FUEL-LINE
FOR OPTIONAL
COOLING COIL
3/4"
C L
10"
1-3/4"
FURNACE
12-7/8"
OUTER DOOR
14-3/4"
15-1/2"
TABS
DUCT
1. INSERT DUCT PLENUM CONNECTOR
INTO DUCT CUT-OUT.
Figure 16. Installation of Duct Connector
INSTALL DUCT CONNECTOR
a. Place duct connector through the floor opening with
bottom tabs extending through the duct opening. (See
2"
Figure 15)
b. Secure duct connector to floor.
c. Bend bottom tabs under and up tightly against the
supply air duct (See Figure 16).
NOTE: The duct connector is designed for use on ducts 12"
in width. When using the connector on 12" wide ducts, there
may be insufficient clearance to bend the tabs on two sides of
the duct connector. In such cases the tabs may be attached
to the sides of the duct by using sheet metal screws or other
suitable fasteners. (See Figure 17).
If tape is used to provide a better seal, it should be approved
by applicable national or local codes.
ALTERNATE ATTACHMENT METHODS
This procedure may also be used to install a furnace duct
connector to narrow metal ductwork where insufficient
clearance prevents bending of the duct connector tabs at the
side(s) of the duct. (See Figure 18).
Figure 14. Mounting Plate
Figure 15. Duct Connector
2. BEND BOTTOM TABS OVER
AND ONTO THE UNDERNEATH
DUCT SERVICE.
TABS
DUCT
9
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