Perfect Aire PAC18000 - Manual (Page 17)

NOTE: If wall thickness is 8-1/2 or more, add
aluminum flashing over bottom of frame opening
to assure no water can enter area between inner
and outer wall.
Caulkas
Required
Aluminum Flashing
Over Bottom Of Frame
Over
8-1/2
3 Prepare and Install Cabinet
1. Slide chassis from cabinet. Refer back to Step
1 of Window Mounting.
2. Place cabinet into opening with bottom rail
resting firmly on bottom board of wooden
frame.
3. Position cabinet to achieve proper slope for
water removal. (See Fig.1 below.)
Level
5/16
to 3/8
3 4 plus trim
thickness /
Fig.1
4. Secure bottom rail to wood frame with two large
wood screws 1 (2.5cm) long using the two holes
in the bottom of the channel resting on frame.
(See Fig.2 following).
1 Long Wood
Screw
Fig.2
Refer to Step 4 of Window Mounting for assembly
of support brackets. A wooden strip nailed to the
outside wall should be used in conjunction with
sill support angle brackets.
Wooden
Strip
Support
Bracket
5. Screw or nail cabinet wooden frame using
shims if frame is oversized, to eliminate
distortion. Remember to maintain proper
slope as described in Step 3.
6. Install chassis into cabinet by following all
steps in Step 8 of Window Mounting.
16