Electrical Work - Mitsubishi Electric PKA-M-HA Installation Manual

6. Electrical work

■ PKA-M·HA(L)
C
I
F
J
I
G
55 mm
12 mm D
K
Fig. 6-1
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.
D
L
B C
N
A
S1
S2
S3
E
* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
D
L
B C
N
A
S1
S2
S3
E
* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
10
E
D
G
12 mm
E
55 mm
J
S1 S2 S3
L
H
J
G
S1
S2
S3
1
F
2
Simultaneous twin/triple/four system
G G G G
S1 S1 S1 S1
S2 S2 S2 S2
S3 S3 S3 S3
1
F
2
H H H
6.1. Indoor unit
■ PKA-M·HA(L) (Fig. 6-1)
Connection can be made without removing the front panel.
1. Open the front grille, remove the screw (1 piece), and remove the electrical
parts cover.
A * Electrical work can be conducted more effectively with the panel removed. When
attaching the panel, check that the hooks K at five locations on the air outlet side
B are connected securely.
2. Securely connect each wire to the terminal board.
* In consideration of servicing, provide extra length for each of the wires.
* Take care when using strand wires, because beards may cause the wiring to
short out.
3. Install the parts that were removed back to their original condition.
4. Fasten each of the wires with the clamp under the electrical parts box.
A Electrical box cover
B Fixing screw
C Clamp
D Wired remote control terminal board (PKA-M·HAL: optional parts): 1 and 2, do not have
polarity
E Indoor/outdoor connection terminal board: S1, S2, and S3, have polarity
F Lead
G Terminal screw
H Ground wire: Connect the ground wire in the direction illustrated in the diagram.
I Wired remote control cord
J Indoor/outdoor connection cord
K Hook
L Ground wire connection portion
Warning:
Never splice the power cable or the indoor-outdoor connection cable,
otherwise it may result in a smoke, a fire or communication failure.
1:1 System
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor/outdoor unit connecting cords
F Wired remote controller (option)
G Indoor unit
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor/outdoor unit connecting cords
F Wired remote controller (option)
G Indoor unit
H Indoor unit earth