6
L
1
N
2
S1
S2 S3
5. Drainage piping work
Installing procedures (Fig. 5-2)
1. Attach the joint socket
5
supplied with the unit to the drain port on the unit with a
vinyl chloride adhesive.
2. Fasten the socket cover
6
supplied with the unit to the joint socket
5
.
3. Attach the field drain tubing (VP20) to the joint socket
5
with a vinyl chloride
adhesive.
4. Wrap the drain tubing cover
7
supplied with the unit. (Seam taping)
5. Check for correct drainage. (Fig. 5-3)
∗
Fill the drain pan with water of about 1 L from the tubing sensor access port.
∗
After checking for correct drainage, replace the tubing sensor access port cover.
3.
B
1.
D
2.
C
4.
E
B
C
D
A
E
F
Fig. 5-2
Fig. 5-3
1
2 3
L
1
N
2
G
K
F
J
I
H
E
D
C
B
A
6-1. Electric wiring (Fig. 6-1)
Wiring procedures
1. Remove the (two) tapping screws then remove the electric part cover.
2. Connect the electric wires securely to the corresponding terminals.
3. Replace the removed parts.
4. Tie the electric wires with the local wiring clamp located in the right side of the
junction box.
A
Cover
B
Set screws
C
Beam
D
Wiring clamp
E
Power supply board
F
Control board
G
Wire service entrance
H
Terminal block for indoor and outdoor units connection
I
Terminal block for electric heater power supply (for only PCH models)
J
Terminal block for remote controller
K
Grounding cable connector
Fig. 6-1
6. Electrical work
A
Drain pan
B
Drain tubing
C
Socket cover
6
D
Joint socket
5
E
Drain tubing cover
7
F
Drain tubing sensor
*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. A 10 m wire is attached in the remote controller accessory.
*3. 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 and thicker 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
Indoor unit-Outdoor unit earth
Remote controller-Indoor unit
*2
Indoor unit (Heater) L-N
*3
Indoor unit-Outdoor unit S1-S2
*3
Indoor unit-Outdoor unit S2-S3
*3
Remote controller-Indoor unit
*3
Wiring
Wire No.
×
size
(mm
2
)
Circuit
rating
PCA
PCH
–
~/N (single), 50Hz, 220-230-240V
16A
–
–
2
×
Min. 1.5
–
1
×
Min. 1.5
3
×
2.5 (Polar)
3
×
2.5 (Polar)
1
×
Min. 2.5
1
×
Min. 2.5
2
×
0.69 (Non-polar)
2
×
0.69 (Non-polar)
–
AC 220-230-240V
AC 220-230-240V
AC 220-230-240V
DC24V
DC24V
DC14V
DC14V
