Electrical Work - Mitsubishi Electric Mr.Slim PLA-A BA6 Series Installation Manual

6. Electrical work

CN105
(RED)
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
L1
A B C
L2
GR
S1
S2
S3
* Affi x label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
D
L1
A B C
L2
GR
S1
S2
S3
* Affi x label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Fig. 6-1
Fig. 6-2
I
G
H
S1
S2
CN105
RED
S3
1
F
2
E
Simultaneous twin system
G
G
S1 S1
S2 S2
S3 S3
2
1
E F
2 1
6.1. Indoor unit (Fig. 6-1)
1. Remove the electrical wiring service panel.
2. Remove the electrical box cover.
3. For radio frequency interface.
Connect the electric wires securely to CN105 (RED) of indoor controller board.
(Fig. 6-2)
For wired remote controller.
Wire the power cable and control cable separately through the respective wiring
entries given in the diagram.
• Do not allow slackening of the terminal screws.
• Leave excess cable so that the electrical box cover can be suspended below the
unit during servicing. (Approx. 50 to 100 mm, 2 to 4 inch)
A
Entry for control cable
B
Entry for power
C
Clamp
D
Electrical box cover
E
Service panel for electrical wiring
F
Temporary hook for electrical box cover
G
Indoor / Outdoor unit connecting terminals
H
Wired remote controller connector
I
Secure with the clamp
J
Earth terminal
K
Electrical box
L Indoor controller board
1:1 System
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor earth
F Wired remote controller
G Indoor controller board
H Radio frequency interface for RF thermostat
I Indoor unit
Only for wired remote controller
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor earth
F Wired remote controller
E
G Indoor unit
7