Wiring Examples - Mitsubishi Electric CITY MULTI Série Manuel D'installation

2 Wiring examples

• Controller name, symbol and allowable number of controllers.
Name
Main unit
Outdoor 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 identified. They are identified 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 connec-
tor from CN41 to CN40 *1
<B> SW2-1:ON *2
<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 connec-
tor from CN41 to CN40 *1
<B> SW2-1:ON *2
<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.
14
Code Possible unit connections
OC – (*2)
OS – (*2)
IC 1 to 32 units per 1 OC (*1)
RC 2 units maximum per group
RP 0 to 1 unit per 1 OC (*1)
L
1
A B
OC
IC IC
CN41 CN40
(51)
(01) (04)
TB3 TB5 TB5
M1 M2
M1 M2 S M1 M2 S
M1M2 S
TB7
D
A B
(101)
ME
L
3
OC
IC
IC
CN41
(52)
(03)
(02)
TB5
TB3 TB5
M1M2 M1 M2 S M1 M2 S
M1M2 S
TB7
System
controller
A B S
A B
(103)
ME
L
1
A B
OC
IC IC
CN41 CN40
(51)
(01)
(04)
TB5 TB15 TB5
TB3
M1 M2 S 1 2 M1 M2 S
M1 M2
M1 M2 S
TB7
D
A B
MA
L
3
OC
IC IC
CN41
(52)
(02) (03)
TB3
TB5 TB15 TB5
M1 M2 M1 M2 S 1 2 M1 M2 S
M1 M2 S
TB7
System
controller
A B S
C
IC IC
(05) (06)
TB5 TB5
M1 M2 S M1 M2 S
r
3
A B A B
(105) (155)
ME ME
E
L
4
IC
(07)
TB5
M1 M2 S
C
IC IC
c
(05) (06)
2
TB15
TB5 TB5
TB15 TB15
1 2 M1 M2 S 1 2 M1 M2 S 1 2
c
4
A B A B
MA MA
E
L
4
IC
(07)
TB 15 TB5 TB15
1 2 M1 M2 S 1 2
A B
MA