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5. Attach Plenum (item 1) to the Unit Discharge opening
where Grille was located using four (4) #8 x
½
” black
pan-head screws (item 2).
6. Install two (2) Short Duct Support Brackets (item 3)
on the Wall Sleeve as shown in Figure 34 using one (1)
#8 x
½
” self-tapping hex-head screw (item 4) in each
bracket.
7. If necessary, Duct End Cap (item 5) can be removed
and re-located to the opposite end of the Main Duct
Assembly (item 6), depending on the desired air dis-
charge direction (left or right).
8. The Duct Baffle (item 8) is factory positioned to pro-
vide a 50/50 distribution of air into each zone. Cutting
it along the scored line results in 60/40 air distribu-
tion (60% in PTAC room, 40% in adjacent room).
Removing the Baffle completely results in a 70/30 split.
Install Duct Baffle and Main Duct Grille (item 9) in
Main Duct Assembly using two (2) #8 x ½” black pan-
head screws (item 2).
Fresh Air Vent and Lateral Duct Kit
(
cont.
)
9. Attach the Long Duct Brackets (item 10) to the Short
Duct Brackets (item 3) using two (2) 10-32 x
½
” pan-
head screws (item 11) and two (2) lock nuts (item 12)
as shown in Figure 34.
10. Carefully slide the unit Chassis back into the Wall Sleeve
ensuring the Plenum inserts properly into the track on
the underside of the Main Duct Assembly.
11. Mount the Enclosure without Enclosure Channel.
12. Attach the Extension Duct Assembly (item 13) to the
Main Duct Assembly using two (2) #8 x
½
” slotted
hex-head screws (item 14).
13. If ordered, install Discharge Grille (item 15) in wall
over Extension Duct Assembly opening using suitable
hardware.Air Intake Filters
