Mitsubishi Electric PAC-MKA53BC Manuel D'installation page 12

8. Electrical work
8.4. External wiring procedure (Fig. 8-9)
Supply power separately to branch box and outdoor unit
Circuit breaker
~
Circuit breaker Outdoor unit
L1
~
B1
L2
B2
GR
M1
M2
* For the wiring specifications
of (A) to (C), refer to "Wiring
Specifications" on the next
page.
en
11
M-NET Branch BOX #1
(5-branches type)
Indoor unit
TB3A
(A)
(C)
TB2B
S1 S1
L1
S2 S2 Indoor
L2
unit A
S3 S3
TB3B
(C)
S1 S1
TB5
Indoor
S2 S2
M1
unit B
S3 S3
M2
S
TB3C
(C)
S1 S1
(B)
Indoor
S2 S2
unit C
S3 S3
TB3D
(C)
S1 S1
Indoor
S2 S2
unit D
S3 S3
TB3E
(C)
S1 S1
Indoor
S2 S2
unit E
S3 S3
(A)
TB3A (C)
TB2B
S1 S1
L1
Indoor
S2 S2
L2 unit F
S3 S3
TB3B
(C)
S1 S1
TB5
Indoor
M1 S2 S2
unit G
M2 S3 S3
S
TB3C
(C)
(B)
S1 S1
Indoor
S2 S2
unit H
S3 S3
Indoor unit
M-NET Branch BOX #2
(3-branches type)
Power supply from Outdoor unit
* Refer to be installation manual of the outdoor unit
Outdoor unit
Circuit breaker
L1
~ B1
L2
B2
GR
M1
M2
Fig. 8-9
M-NET Branch BOX #1
(5-branches type)
Indoor unit
(A) (C)
TB3A
TB2B
S1 S1
L1
Indoor
S2 S2
L2
unit A
S3 S3
(C)
TB3B
S1 S1
TB5
Indoor
S2 S2
M1
unit B
S3 S3
M2
S
(C)
TB3C
(B) S1 S1
Indoor
S2 S2
unit C
S3 S3
(C)
TB3D
S1 S1
Indoor
S2 S2
unit D
S3 S3
(C)
TB3E
S1 S1
Indoor
S2 S2
unit E
S3 S3
(A)
TB2B (C)
TB3A
L1
S1 S1
Indoor
L2
S2 S2
unit F
S3 S3
(C)
TB3B
TB5
S1 S1
M1 Indoor
S2 S2
unit G
M2
S3 S3
S
(C)
TB3C
(B)
S1 S1
Indoor
S2 S2
unit H
S3 S3
Indoor unit
M-NET Branch BOX #2
(3-branches type)