10
Positioning
Select cassette installation position.
1.
Pipe work, electrical connections, control box and
condensate pump access panels should be readily
accessible. Refer to cassette dimensions. See Figure 1,
Page 6 and Table 1, Page 7.
2.
Position unit at least 5 ft. (1.5m) from wall or similar
obstruction.
3.
Position unit as close to center of room as possible to
insure even air distribution.
4.
Position unit so discharge air does not blow directly on
remote wall wired thermostat, if used.
5.
Do not position unit directly above any obstructions.
6.
Condensate drain should have sufficient fall — 1” per
10’ (8 mm/m) in any horizontal run between cassette
and drain.
7.
Maximum condensate pump lift is 36” (0.9m) from
bottom of unit.
8.
Maintain minimum 1” (25.4mm) clearance above
cassette depth and false ceiling for proper installation.
MoUnTInG THE UnIT
Wired Wall Control
Optional wired wall control contact
EMI for availability.
Locate optional wired wall mounted thermostat to insure
good temperature control. Select installation position.
1.
Position thermostat approximately 5 ft. (1.5m) above
floor level.
2.
Avoid external walls and drafts from windows and
doors.
3.
Avoid positioning near shelves and curtains as these
restrict air movement.
4.
Avoid heat sources (direct sunlight, heaters, dimmer
switches, etc.)
5.
Seal wiring holes in wall behind thermostat to avoid
drafts.
Dimension A + 1” = Minimum Space Above false
Ceiling for Installation
A
A
+1”
Model
Dimension A
9 & 12
11.84” (0.3 m) min.
18 & 24
12.55” (0.32 m) min.
30 & 36
14.51” ( 0.37 m) min.
Ceiling Opening
nOTICe
verify ceiling grid is supported separately from
the cassette. Do not support ceiling by any part of
cassette unit, fascia or any associated wiring or pipe
work.
Cut opening in false ceiling with size. See Table 4.
Table 4 - Ceiling Opening Sizes
Model
Dimensions
9 & 12
23 ¼” x 23 ¼” (591 x 591 mm)
18 & 24
33 ⅞” x 33 ⅞” (860 x 860 mm)
30 & 36
46” x 33 ⅞ (1168 x 860 mm)
figure 5 - Spacing Requirements
figure 6 - Ceiling Cutout/Rod Placement
Template (Shipped With Unit)
(51mm x 45°)
2.000 x 45° TYP
rod
Positions
1.500 TYP
rod
Positions
(38mm TYP)
