Mitsubishi Electric CITY MULTI PURY-P72TJMU-A Installation Manual page 18

2 Wiring examples
• Controller name, symbol and allowable number of controllers.
Name
Outdoor unit Main unit
Sub unit
BC controller Main unit
Sub unit
Indoor unit Indoor unit controller
Remote controller Remote controller (*1)
Other Transmission booster unit
*1 A transmission booster (RP) may be required depending on the number of connected indoor unit controllers.
*2 OC and OS of the outdoor units in the same refrigerant system are automatically identifi ed. They are identifi ed as OC and OS in descending order of capacity. (If the
capacity is the same, they will be in ascending order of their address number.)
Example of a group operation system with multiple outdoor units (Shielding wires and address setting are necessary.)
<Examples of transmission cable wiring>
[Fig. 11.3.1] M-NET Remote Controller
<A> Change the jumper connector
from CN41 to CN40 *1
<B> SW2-1: ON *2
( ) Address
<C> Keep the jumper connector
on CN41
<B> SW2-1: ON *2
*1: When the power supply unit is not connected to the transmission line for centralized control, disconnect the male power supply connector (CN41) from ONE
outdoor unit in the system and connect it to CN40.
*2: If a system controller is used, set SW2-1 on all of the outdoor units to ON.
[Fig. 11.3.2] MA Remote Controller
<A> Change the jumper connector
from CN41 to CN40 *1
<B> SW2-1: ON *2
<C> Keep the jumper connector
on CN41
<B> SW2-1: ON *2
A : Group 1
B : Group 3
C : Group 5
D : Shielded wire
E : Sub remote
controller
( ) Address
*1: When the power supply unit is not connected to the transmission line for centralized control, disconnect the male power supply connector (CN41) from ONE
outdoor unit in the system and connect it to CN40.
*2: If a system controller is used, set SW2-1 on all of the outdoor units to ON.
18
Code
OC
OS
BC
BS
IC
RC
RP
OC
CN41 CN40
BC
(51)
(52)
TB02
M1 M2 S
TB3
M1M2
M1M2 S
TB7
D
L
3
OC
CN41 CN41 BC
(53)
(54)
TB02
M1 M2 S
TB3
M1M2
M1M2 S
TB7
System
controller
A B S
OC
CN41 CN40
BC
(51)
(52)
TB02
TB3
M1 M2 S
M1M2
M1 M2
M1M2 S
TB7
D
L
3
OC
CN41
BC
(53)
(54)
TB02
TB3
M1 M2 S
M1M2 M1 M2 S
M1M2 S
TB7
System
controller
A B S
Possible unit connections
– (*2)
– (*2)
One controller for one OC
Zero, one or two controllers for one OC
1 to 20 units per 1 OC (*1)
2 units maximum per group
0 to 2 units per 1 OC (*1)
L
1
A B
IC IC
(01) (04)
TB5 TB5
M1 M2 S M1 M2 S
A B
(101)
ME
IC
IC
(03)
(02)
TB5 TB5
M1 M2 S M1 M2 S
A B
(103)
ME
L
1
A B
IC IC
BS
(01) (04) (55)
TB02
TB5 TB15 TB5 TB15
M1 M2 S
S 1 2 M1 M2 S 1 2
A B
MA
L
4
IC IC
(03)
(02)
TB5 TB15 TB5 TB15
1 2 M1 M2 S 1 2
A B
MA
C
IC
BS
(55)
(05) (06)
TB02
M1 M2 S
TB5 TB5
M1 M2 S M1 M2 S
3 3 3
A B A B
(105) (155)
ME ME
E
L
4
IC
(07)
TB5
M1 M2 S
C
IC IC
(05) (06)
2
TB5 TB15 TB5 TB15
M1 M2 S 1 2 M1 M2 S 1 2
4
A B A B
MA MA
E
IC
(07)
TB5 TB15
M1 M2 S 1 2
IC