GB
GB-31
WT07828X01
(2) When MA remote controllers are connected
M1M2 S
TB7
IC
(51)
M1
M2
1 2
S
TB5
TB15
1 2
TB15
1 2
TB15
1 2
TB15
1 2
TB15
1 2
TB15
1 2
TB15
MA
(01)
IC
M1
M2 S
TB5
(02)
IC
M1
M2 S
TB5
(04)
IC
M1
M2 S
TB5
(03)
IC
M1
M2 S
TB5
(05)
IC
M1
M2 S
TB5
(07)
IC
M1
M2 S
TB5
(06)
L
2
L
1
MA
MA
MA
M1M2 S
TB7
TB3
(53)
S
L
3
L
6
L
4
A B
A B
A B
A B
A B
BC
M1
M2 S
(52)
BS
M1
M2 S
(55)
BC
M1
M2 S
(54)
TB02
TB02
TB02
CN41 CN40
OC
OC
CN41
M1M2
TB3
M1M2
1
1
3
2
4
Ⓒ
Ⓐ
Ⓑ
2
1
2
Ⓐ
Shielded
cable
Ⓑ
Sub remote controller
Ⓒ
System
controller
*1 When a power supply unit is not connected to the centralized control transmission cable, move the power jumper from CN41 to CN40 on only one of the outdoor units.
*2 If a system controller is used, set SW5-1 on all of the outdoor units to ON.
*3 BC, BS
Maximum allowable length of control cables
Transmission cables via outdoor units
L
1
+ L
2
+ L
3
+ L
4
, L
1
+ L
2
+ L
6
PIW
Transmission cables
L
1
, L
3
+ L
4
, L
6
, L
2
+ L
6
PIW
Remote controller cables
m
1
+ m
2
, m
1
+ m
2
+ m
3
+ m
4
PIW
(3) When a transmission booster unit is connected
ME
IC
BC
M1M2 S
TB5
IC
M1M2 S
TB5
RP
A B
A B
A B
S
TB2
A B S
TB3
L
8
ME
IC
M1M2 S
TB5
IC
M1M2 S
TB5
M1M2 S
M1M2
TB3
M1M2
TB3
M1M2 S
TB7
M1M2 S
TB7
OC
(51)
Ⓐ
OS
(52)
CN41
CN41
TB02
111
Ⓐ
Shielded
cable
*1 Daisy-chain terminals (TB3) on outdoor units together in the same refrigerant system.
*2 Leave the power jumper connected to CN41. When connecting a system controller to the transmission line (TB7) for centralized control, refer to (1), (2), or DATA BOOK.
*3 BC
Maximum allowable length of control cables
Transmission cables
L
1
+ L
2
+ L
3
+ L
4
+ L
6
+ L
7
, L
1
+ L
2
+ L
3
+ L
4
+ L
6
+ L
8
, L
1
+ L
2
+ L
3
+ L
5
,
L
7
+ L
6
+ L
4
+ L
5
, L
5
+ L
4
+ L
6
+ L
8
PIW
Remote controller cables
Ɛ
1
Ɛ
2
PIW
* If the length exceeds 10 m (32 ft), the length that exceeds 10 m (32 ft) needs to be included in the
maximum allowable length of transmission cables above.
*3
*3
*3
* Move the power jumper from CN41 to
CN40. *
1
* SW5-1: ON *
2
* Leave the power jumper connected to
CN41.
* SW5-1: ON *
2
Group 5
Group 3
Group 1
*3
Ground