Mitsubishi Electric CITY MULTI PUHY-P-THMU-A Manuel D'installation page 16

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
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.
[Fig. 11.3.3] Combination of outdoor units and transmission booster unit
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