Page 4 of 24 / IM 439
Vibration Isolation
For minimum sound and vibration transmission, it is recom-
mended that the unit be mounted on vibration isolators.
Holes are provided in the bottom panel to facilitate con-
nection of isolators
(see Figure 3 for hole locations).
Isolators supplied by the manufacturer are the type shown
in Figures 4 and 5. Four white isolators are used for single
compressor units and six green isolators are used for dual
compressor units. The holes in the bottom of the unit allow for
a
3
⁄
8
" (10 mm) bolt to be secured to the isolator.
Figure 3. Isolator
Figure 4. Single compressor unit — vibration isolators
Figure 5. Dual compressor unit — vibration isolators
3
/
8
" (10 mm) TAP
7
/
16
" (11 mm) dia.
2
1
/
2
" (64 mm)
4
1
/
2
" (114 mm)
5
1
/
2
" (140 mm)
2
5
/
8
" (61 mm)
Figure 2. Side view from piping end
Each unit is shipped with a filter bracket for side filter
removal.
Two fan discharges and piping arrangements are available.
With the return air side defined as the “front” of the unit, the
water piping and electrical power connections may be right-
hand (side) or left-hand. The main control panel is located in
the center of the unit, lower section under the return air filter.
Unit sides opposite the control panel and opposite the piping
side may be up against walls and still allow for service and
maintenance through the remaining access panels.
Fan Motor
M
Control Box Location
M
Piping
Piping
Unit Arrangement
Filter Access
3" (76 mm)
28
5
/
32
"
(715 mm)
54
23
/
32
"
(1390 mm)
30
1
/
8
"
(765 mm)
2" (51 mm)
3
1
/
4
" (83 mm)
80
3
/
8
"
(2042 mm)
40
3
/
16
"
(1021 mm)
3
1
/
4
" (83 mm)
(6)
3
/
8
" (10 mm) holes
2" (51 mm)
3" (76 mm)
3" (76 mm)
3" (76 mm)
(4)
7
/
16
" (11 mm) holes
7
/
16
" (11 mm)
1
/
4
" (6 mm)
2"
(51 mm)
Section A-A
A
A
