7
5. Electrical work
5.1. Electric wiring (Fig. 5-1)
* Make sure all electrical wiring is complete before installing the cover panel.
1. Remove the cover from the address board (two bolts).
2. Remove the cover from the electrical box (one bolt).
3. Remove the bolts securing the electrical box and lower the box (two bolts).
4. Insert the wires into the electrical box.
5. Connect the wires securely to the terminal block.
* Be sure to make the various wires long enough so the box may be lowered from
the unit during servicing.
6. Secure the wires with the wiring clamp on the side of the electrical box.
7. Replace the parts you have removed to their original locations.
A means for the disconnection of the supply with an isolation switch, or similar de-
vice, in all active conductors shall be incorporated in the fixed wiring.
A
B
F
C
D
F
E
A
Cover
B
Electrical box
C
Indoor/outdoor unit connecting terminal
D
Remote controller terminals
E
Control board
F
Secure with the wiring clamp
Fig. 5-1
*1. A breaker with at least 3 mm contact separation in each pole shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
*2. Max. 45 m
If 2.5 mm
2
used, Max. 50 m
If 2.5 mm
2
used and S3 separated, Max. 80 m
*3. The 10 m wire is attached in the remote controller accessory. Max. 500 m
*4. The figures are NOT always against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are not electrically insulataed by the transformer or other device.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cords and indoor unit/outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord. (Design 245 IEC 57)
3. Install an earth longer than other cables.
Indoor unit model
Indoor unit power supply (Heater)
Indoor unit input capacity (Heater)
*1
Main switch (Breaker)
Indoor unit power supply (Heater)
Indoor unit power supply (Heater) earth
Indoor unit-Outdoor unit
*2
Indoor unit-Outdoor unit earth
*2
Remote controller-Indoor unit
*3
Indoor unit (Heater) L-N
*4
Indoor unit-Outdoor unit S1-S2
*4
Indoor unit-Outdoor unit S2-S3
*4
Remote controller-Indoor unit
*4
PMH
–
–
–
–
3
×
1.5 (polar)
1
×
Min. 1.5
2
×
0.3 (Non-polar)
–
AC 230 V
DC 24 V
DC 12 V
Circuit
rating
Wir
ing
Wire No
.
×
siz
e
(mm
2
)
30
46
30
30
120
83.5
A
B
C
(mm)
F
A
H
C
D
E
G
I
I
I
H
B
J
H
(2)
(3)
B-1.
B-2.
Fig. 5-2
Fig. 5-3
A
Remote controller profile
B
Required clearances surrounding
the remote controller
C
Installation pitch
5.2. Remote controller
For wired remote controller
1) Installing procedures (Fig. 5-2)
(1) Select an installing position for the remote controller.
The temperature sensors are located on both remote controller and indoor unit.
s
Procure the following parts locally:
Two piece switch box
Thin copper conduit tube
Lock nuts and bushings
(2) Seal the service entrance for the remote controller cord with putty to prevent pos-
sible invasion of dew drops, water, cockroaches or worms.
A
For installation in the switch box:
B
For direct installation on the wall select one of the following:
• Prepare a hole through the wall to pass the remote controller cord (in order to run
the remote controller cord from the back), then seal the hole with putty.
• Run the remote controller cord through the cut-out upper case, then seal the cut-
out notch with putty similarly as above.
B-1. To lead the remote controller cord from the back of the controller:
B-2. To run the remote controller cord through the upper portion:
(3) For direct installation on the wall
C
Wall
G
Switch box
D
Conduit
H
Remote controller cord
E
Lock nut
I
Seal with putty
F
Bushing
J
Wood screw
