STEP 1 (continued)
7.
Remove and save the screws (2) securing
extension bracket to the extension duct. Remove
and save the screws (2) securing the lateral duct
adapter to the case mounting plate at the extension
end. Remove and save the screws (2) securing
the duct adapter to the case mounting plate on
opposite end.
8.
Carefully lift extension duct until the two shoulder
screws disengage from the flange of the duct
adapter. Then slide the duct adapter forward until it
clears the unit.
9.
Remove and retain end cap and screws by
removing the screws (4) securing the end cap to
the existing duct adapter.
10.
Remove and retain the grille and screws by
removing the 4 screws securing the grille to the
existing duct adapter.
11.
Remove and discard black dampener under grill.
12.
Remove and retain the two shoulder bolt and two
nuts from existing duct adapter.
STEP 2
Install the new lateral duct adapter
1.
Prepare duct adapter for installation by Installing
the end cap on the correct end for your application.
This will be the opposite end where the extension
duct will be installed. Secure with four screws
removed in step 1.
2.
Install new damper under grille on top of lateral
duct adapter for 70% air discharge into primary
room (room which the unit is installed) and 30%
discharge into secondary (adjacent) room. By not
installing the new damper, air distribution will be
80% Primary room and 20% secondary room. To
install the new damper, place damper centered in
the exist grille such that the flange on damper lays
inside the grille flange. Place grille over the hole
in the duct adapter, ensuring the damper does not
fall out of place and secure with the four screws
removed in step 1.
3.
Install the two shoulder screws and nuts (removed
in Step 1) on the end where the existing extension
duct is to be mounted, ensuring the nuts are placed
inside of the adapter duct flange and shoulder
screw extend to the outside of the flange.
Flange
Duct
extension
Lateral duct dapter
Shoulder screws
Thumb
screw
s
Discharge grille
and damper
Lateral duct adapter
Transition duc
t
Extension Bracket
Extension Mounting
Bracket Screws
Case Mounting
Screws
2
