Manufacturer of Quality Air Conditioning and Heating Products • www.islandaire.com • sales@islandaire.com • (800)-886-2759
29
The Air Discharge Plenum is shipped separately and
requires in the field assembly and installation. Before
proceeding, prepare the closet duct work for later con-
nection to the Air Discharge Plenum.
CHASSIS
AIR
DISCHARGE
PLENUM
(P/N 4091640)
SPIN ON COLLAR
DISCHARGE
PLENUM
SLOT IN MOUNTING
FLANGE OF SPIN-ON
COLLAR
ROTATE COLLAR
COUNTER-
CLOCKWISE
Figure 15
Air Discharge Plenum - Assembled
1. Locate the slot in the mounting flange of the Spin-
on Collar. Slip the back edge of the collar mounting
flange into the circular hole in the Discharge Plenum
and spin the collar around to thread it into the Dis-
charge Plenum (see Figure 15).
2. Use aluminum tape provided to seal connection
between Spin-on Collar and Discharge Plenum.
3. From the back of the chassis, slide the rear lip of
the Discharge Plenum under the discharge plenum
mounting flange on the chassis as shown in Figure
4. Secure Air Discharge Plenum to the unit using one
(1) #8 x 3/8” hex screw supplied with plenum.
The collar on top of the Air Discharge Plenum accepts
field-supplied, insulated, flexible or rigid 10” diameter
transition duct. Flexible duct may be used for transitions
only, rigid duct must be used for 90° bends and tees. DO
NOT use flex duct for 90° bends or unsupported runs of
5 feet or more (flex duct can collapse and cause airflow
restrictions). Pull all duct tight; extra duct slack can
greatly increase static pressure.
Carefully attach flexible duct core and insulation/jacket
to Air Discharge Plenum using two (2) 36” cable ties
provided (one for flexible duct core and one for insula-
tion/jacket).
AIR
DISCHARGE
OUTLET
INSIDE
WALL
RIGID
DUCT
FLEXIBLE
OR RIGID
DUCT WORK
Installation - Air Discharge Plenum/Duct Work