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For Multi Branch SW BOX
24
32 41
H-LINK
Outdoor
Connect communication
cable from outdoor unit to
the outdoor terminal
block(TB2) in Switch Box.
Cooling Only Indoor Unit
Indoor Unit A Indoor Unit B
Communication cable
RCS:Remote Control Switch
( )
Indoor Units F
When multiple Indoor Units are connected to the
same branch, they are controlled with same operation
mode.
SPMBB-8/85
SPMBB-4/45
BA21
BA21
BA21
BA21BA21
Switch Box
Outdoor
1 2
TB2
Outdoor
1 2
TB2
Indoor
Indoor
TB3 TB4
PCB1
AB C
3456 78
TB3 TB4
PCB2
3456 789
EF GH
Indoor Indoor
TB3 TB4
PCB1
3 4 5 6 7 8 9 10
AB CD
RCS
RCS
RCS
RCS
…
RCS
…
Power
Supply
L2
TB1
ELB S
Main Switch
and Fuse
Earth
Leakage
Breaker
Power Supply Wiring
Indoor Indoor
10
(a) SPMBB-4/45/SPMBB-8/85
Heating Only Water Module
BA21
RCS
(Non-Polarity)
(DC5V)
or Water Module A
or Water Module B
Connect communication
cable from cooling only
water module to the outdoor
terminal block (TB2) in
Switch Box.
indoor unit and heating only
1234
H-LINK
Outdoor Unit
Outdoor
Connect communication cable from
outdoor unit to the outdoor terminal
block(TB2) in Switch Box.
Cooling Only Indoor Unit
Indoor Unit A Indoor Unit B
Indoor Units H
RCS:Remote Control Switch
( )
SPMBB-16/85
SPMBB-12/85
BA21BA21
BA21BA21
1 2
TB2
TB5
1112
EF
Indoor
TB3 TB4
PCB1
3 4 5 6 7 8 9 10
AB CD
RCS
RCSRCS
……
RCS
TB5
1112
GH
TB3 TB4
PCB2
3 4 5 6 7 8 9 10
I
J
KL
TB3 TB4
PCB3
3 4 5 6 7 8 9 10
MN 0 P
Power
Supply
L2
TB1
ELB S
Main Switch
and Fuse
Earth
Leakage
Breaker
Power Supply Wiring
Outdoor
Indoor Indoor
Indoor
Indoor Indoor
Indoor Indoor
(b) SPMBB-12/85/SPMBB-16/85
Switch Box
1 2
TB2
TB3 TB4
PCB1
AB C
3456 78
Outdoor
Indoor Indoor
Heating Only Water Module
BA21
RCS
BA21
RCS
Communication cable
(Non-Polarity)
(DC5V)
or Water Module A
or Water Module B
When multiple Indoor Units are connected to the
same branch, they are controlled with same operation
mode.
Connect communication
cable from cooling only
water module to the outdoor
terminal block (TB2) in
Switch Box.
13 14
13 14
indoor unit and heating only
L1
L1
208/230V
1~ 60Hz
208/230V
1~ 60Hz
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