Nordyne Downflow Condensing Furnace M3RL - Manual (Page 11)

11
Figure 9. Duct Connector
Screw Down
Duct Connectors Platinum Series
Figure 8. Mounting Plate
REAR WALL
SUPPLY AIR DUCT
FUEL
LINE
HOLES
MOUNTING
PLATE
FLOOR
OPENING
BEND CONNECTOR TABS
UNDER DUCT OPENING
5-1/4" to the left of center of the floor cut-out,
or for entry through right-side of furnace
measured 9" to the right of center of the floor
cut-out.
d. Cut out floor opening and one gas line hole.
CUT DUCT OPENING (FINGER TABBED
ONLY)
a. Place duct connector through the floor open-
ing 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 1/16" larger than area
marked.
INSTALL FURNACE MOUNTING PLATE
a. Place mounting plate (supplied within duct
connector) at rear of the floor opening (See
Figure 9).
INSTALLING PLATINUM SERIES 14”
ROUND DUCT CONNECTOR
a. Place duct connector through the floor open-
ing. (See Figure 9).
b. Secure duct connector to floor.
INSTALLING SCREW DOWN DUCT CON-
NECTOR
a. Apply a bead of caulking, mastic, or other
approved sealant around bottom side of 1/2”
flange and restrictor plate, when applicable.
b. Locate the duct connector over duct and
carefully lower screw down duct connector
into place.
c. Once duct connector is located on duct,
temporarily hold in place while fastening duct
connector to the floor using flat head screws
or nails. Be sure flanges of duct connector
stay in contact with the duct.
d. Screw plenum to duct making sure a seal is
made between the duct and the duct con-
Finger Tabbed
Duct Connectors
14” SUPPLY
CONNECTION
FUEL
LINE
HOLES
SCREWS
MOUNTING
PLATE
PLENUM
SUPPLY AIR DUCT
FUEL
LINE
HOLES
MOUNTING
PLATE
FLOOR
OPENING
SCREWS
REAR WALL
MOUNTING
PLATE
FLOOR
OPENING
FUEL
LINE
HOLES
SUPPLY AIR DUCT