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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.
Figure 15: Electric Heat Section
M
J
E
K
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
in.
45
⁄
3
4
mm
1162
Table 5: Wall Box Dimensions
Wall Box "B"
Dimension
007–014
Overall Length
Wall Box "B"
Dimension
007–014
Overall Length
IM 1068-2 / Page 10 of 28
A
D
Front View
D
E
F
37
17
⁄
24
3
1
4
940
451
622
2
⁄
3
⁄
1
1
2
2
10
⁄
11
⁄
1
1
2
2
64
89
267
292
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.
H
Long Control
Box
Room Cabinet
Room Cabinet
Mounting Holes (4)
Cooling Chassis
Power Cord
G
H
⁄
13
⁄
22
⁄
11
7
2
16
8
348
581
Dimensions - inches
4
5
6
12
13
14
Dimensions - mm
102
127
152
305
330
356
8"
(203mm)
Wall Box
Heat Section
Power Cord
⁄
''
1
2
(12mm)
Side View
J
K
10
9
⁄
3
16
254
233
7
8
9
15
16
17
178
203
229
381
406
432
B
F
G
⁄
''
1
4
(6mm)
M
1
⁄
1
2
38
10
18
254
457
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