Mitsubishi Electric City Multi PURY-HP-TNU-A Série Manuel D'installation page 34

(2) When MA remote controllers are connected
* Move the power jumper from CN41 to
CN40. *
1
* SW5-1: ON * 2
* Leave the power jumper connected to
CN41.
* SW5-1: ON * 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 (except TNU
model). When the System controller is connected to TB7 side and TNU outdoor unit model is used, connect a power supply unit to TB7 side. If a power supply unit cannot be used,
connect the System controller to TB3 side. Up to three System controllers can be connected to TB3 side.
*2 If a system controller is used, set SW5-1 on all of the outdoor units to ON.
*3 BC, BS
*4 When a PAR-31MAA is connected to a group, no other MA remote controllers can be connected to the same group.
Maximum allowable length of control cables
Transmission cables via outdoor units
Transmission cables
Remote controller cables
(3) When a transmission booster unit is connected
OS OC
(52) (51)
M1M2 S M1M2 S
TB7 TB7
CN41 CN41
TB3 TB3
M1M2 M1M2
Ⓐ
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
Remote controller cables
WT09112X02
OC
CN41 CN40
*3
BC
(51)
(52)
TB02
TB3
M1 M2 S
M1M2
M1M2 S
TB7
Ⓐ
L
3
OC
CN41
*3
BC
(53)
(54)
TB02
TB3
M1 M2 S
M1M2
M1M2 S
TB7
Ⓒ
A B S
L + L + L
1 2
L , L + L
1 3
m + m , m
1 2
*3
BC IC
TB02 TB5 TB5
M1M2 S M1M2 S M1M2 S
L + L + L
1 2
L + L + L
7 6
1 2
* 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.
GB-32
L
1
Group 1 Group 3
IC IC
BS
(55)
(01) (04)
TB02
TB5 TB15 TB5 TB15
M1 M2 S
M1 M2 S 1 2 M1 M2 S 1 2
A B
MA
L
4
IC IC
(03)
(02)
TB5 TB15 TB5 TB15
M1 M2 S 1 2 M1 M2 S 1 2
A B
MA
+ L , L + L + L
3 4 1 2 6
, L , L + L
4 6 2 6
+ m + m + m
1 2 3 4
Ground
IC RP
TB2 TB3
A B S A B S
A B
ME
+ L + L + L , L + L + L + L + L + L , L
3 4 6 7 1 2 3 4 6 8
+ L , L + L + L + L
4 5 5 4 6 8
Group 5
IC IC
*3
(05) (06)
2
TB5 TB15 TB5 TB15
M1 M2 S 1 2 M1 M2 S 1 2
4
A B A B
MA MA
Ⓑ
IC
(07)
TB5 TB15
M1 M2 S 1 2
IC IC
TB5 TB5
M1M2 S M1M2 S
A B
ME
+ L + L + L ,
1 2 3 5