11
Rear Wall
Cut-out Area
Optional Supply
Entrance
Mounting
Plate
Floor
Opening
Refrigerant
Line
Opening
Supply Air Duct
Cut Duct Opening
1/16th. Larger Than
Plenum Connector
Preparing Floor Opening(s)
1.
Mark floor opening(s) as shown in Figure
6. Provide minimum clearances at rear and
right side walls of closet or alcove for instal-
lation of furnace and wiring.
2.
Cut floor opening on outside edge of marked
line so that opening is slightly larger than
area marked.
3.
Additional provisions may be necessary for
optional air conditioning or heat pump if
refrigerant lines are installed elsewhere
than at the front of the furnace.
4.
The refrigerant and entrance supply open-
ing dimensions may be adjusted ± 1/2”.
Rear Wall
Secure Plenum Connector &
Mtg Plate With 2 Flat Head Screws
or Nails At Dimpled Locations
Refrigerant
Line
Opening
Supply Air Duct
Mounting
Plate
Plenum
Bend Connector Tabs
Under Duct Opening
Figure 7. Rear Mounting Plate
Installing Plenum Connector
NOTE: The plenum connector is designed for
use on ducts down to 12" wide. On typical ducts,
the plenum connector may be installed using
Method A. On narrow ducts, there may be
insufficient clearance to bend the tabs on two
sides of the plenum connector. In such cases,
use Method B or C.
Method A
1.
Place plenum connector through floor opening
with bottom tabs resting on top of supply air
duct. Mark cutout area around inside of tabs.
2.
Remove plenum connector and cut out duct
opening slightly larger than area marked.
Figure 8. Plenum Connector
