6
6. Electrical work
Fig. 6-1
6.1. Electric wiring (Fig. 6-1)
Wiring procedures
1. Insert all electrical wires into the unit.
2. Remove the terminal block cover (1 screw).
3. Connect the electric wires securely to the corresponding terminals.
4. Replace the terminal block cover.
5. Tie the electric wires with the local wiring clamp located in the right side of the
junction box.
A
Terminal block cover
B
Set screws
C
Wiring clamp
D
Pull
E
Terminal block for indoor and outdoor
units connection
F
Terminal block for remote controller
G
Grounding cable connector
H
T.B.box
I
Wire service entrance
A
Drain pan
B
Band
6
C
Unit (Drain hole)
D
Matching
E
Drain hose
5
F
Drain tubing cover
7
G
Rear panel
H
Independent piece
I
On site drain pipe (VP25)
J
Insertion margin: 25 mm
K
Inspection hole
Fig. 5-1
5. Drainage piping work
Installing procedures
1. Remove the independent piece (2 screws) of the indoor unit.
2. Attach the band
6
supplied with the unit to the drain hose
5
.
3. Connect the drain hose
5
to the drain hole of the unit.
4. Connect the field drain tubing (VP 25/O.D. ø32 PVC TUBE) to the drain hose
5
.
5. Tighten the band
6
in 2 places.
6. Wrap the drain tubing cover
7
supplied with the unit.
7. Install the independent piece.
8. Check for correct drainage.
∗
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.
6.1.1. Indoor unit power supplied from outdoor unit
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
1:1 System
S1
S2
L
N
1
2
S1
S2
S3
S3
A
B
C
D
E
F
G
<For models with heater>
S1
S2
L
N
1
2
L
N
S1
S2
S3
S3
A
B
C
D
G
H
E
F
B
C
* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
A
Outdoor unit power supply
B
Earth leakage breaker
C
Wiring circuit breaker or isolating switch
D
Outdoor unit
E
Indoor unit/outdoor unit connecting cords
F
Remote controller
G
Indoor unit
H
Heater power supply
<For models without heater>
