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IM 1068-2 / Page 10 of 28
Installation
Electric Power Wiring
Before making any electrical connections, observe the follow-
ing precautions:
1. Check the nameplate rating of the heat section and cooling
chassis to make sure the equipment is connected to the
proper power supply and that proper fusing is used.
2. In cases where a number of conditioners are to be
installed, single circuits should be provided for each
machine.
3. A separate disconnect is recommended for each
conditioner in addition to individual fusing. This can be
accomplished in several ways:
a. By installing a remote double-pole switch in the
conditioner’s power line within sight of the unit.
b. By installing a double pole, single throw “on-off”
switch located in a convenient position within the
room cabinet.
After all these precautions are observed, proceed as follows:
Units With Electric Heat
A 4" × 4" electrical junction box is located on the left side of
the heat section. Field wiring should be brought to this point
for power to the unit. See Figure 15.
Figure 15: Electric Heat Section
B
Front View
Side View
A
M
E
K
J
H
Long Control
Box
D
Room Cabinet
Mounting Holes (4)
Room Cabinet
Heat Section
Power Cord
8"
(203mm)
G
1
⁄
2
''
(12mm)
1
⁄
4
''
(6mm)
Wall Box
Cooling Chassis
Power Cord
F
Notes:
Guest room control, low voltage or master-slave wiring connection made at control box.
Junction box with knockouts for 1/2'' (12mm) 3/4'' (19mm) conduit.
See Table 5 for dimension B.
Table 4: Electric Heat Section Dimensions
A
D
E
F
G
H
J
K
M
in.
45
3
⁄
4
37
17
3
⁄
4
24
1
⁄
2
13
11
⁄
16
22
7
⁄
8
10
9
3
⁄
16
1
1
⁄
2
mm
1162
940
451
622
348
581
254
233
38
Table 5: Wall Box Dimensions
Dimensions - inches
Wall Box “B”
Dimension
007–014
2
1
⁄
2
3
1
⁄
2
4
5
6
7
8
9
10
Overall Length
10
1
⁄
2
11
1
⁄
2
12
13
14
15
16
17
18
Dimensions - mm
Wall Box “B”
Dimension
007–014
64
89
102
127
152
178
203
229
254
Overall Length
267
292
305
330
356
381
406
432
457
Summary of Contents for IM 1068-2
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