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English
17
•
When clamping the wirings, be sure no pressure is applied to the wire connections by using the included
clamp to make appropriate clamps. Also, when wiring, make sure the cover on the control box fits snugly
by arranging the wirings neatly and attaching the service cover firmly. When attaching the service cover,
make sure no wirings get caught in the edges. Pass wiring through the wiring through holes to prevent dam-
age to them.
•
Make sure the remote controller wiring, and transmission wiring between the units, and other electrical wir-
ing do not pass through the same locations outside the machine, separating them by at least 50mm, oth-
erwise electrical noise (external static) could cause mistaken operation or breakage.
•
Use only specified wire and tightly connect wires to terminals. Be careful wires do not place external stress
on terminals. Keep wiring in neat order and so as not to obstruct other equipment such as popping open the
service cover. Make sure the cover closes tight. Incomplete connections could result in overheating, and in
worse case, electric shock or fire.
8-2 WIRING EXAMPLE
•
Fit the power supply wiring of each unit with a switch and fuse as shown in the drawing.
COMPLETE SYSTEM EXAMPLE (3 systems)
1. When using 1 remote controller for 1 indoor unit. (Normal operation)
Power supply wiring
Transmission and remote controller wiring
Switch
Fuse
Fig. 22
Power supply
Main
switch
Remote controller
Indoor unit
Outdoor unit
BS unit
(Only for Heat
recovery system)
L N
L N
IN/D OUT/D
F
1
F
2
F
1
F
2
Control box
L N
L N
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
L N
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
L N
L N
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
L N
Outdoor unit
No. 1
System
Indoor
unit A
Indoor
unit B
Indoor
unit C
Most
downstream
Indoor unit
Power supply
220-240V
50Hz
Power supply
220-240V
50Hz
Power supply
220-240V
50Hz
Power supply
220-240V
50Hz
Fig. 23
4PEN494115-1A.book Page 17 Tuesday, October 3, 2017 10:51 AM