Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook page 56

1) Indoor/outdoor transmission line
Same as [4] 3.
[Shielded cable connection]
Same as [4] 1.
2) Transmission line for centralized control
Same as [4] 4.
[Shielded cable connection]
Same as [4] 3.
3) M-NET remote controller wiring
Connect terminals M1 and M2 on the terminal block for indoor-outdoor transmission line (TB5) on the indoor units
(IC) to appropriate terminals on the terminal block on M-NET remote controller (RC). (Non-polarized 2-core cable)
[When 2 remote controllers are connected to the system]
When 2 remote controllers are connected to the system, connect terminals M1 and M2 of the terminal block on the
IC (TB5) to the terminal block on the two RC remote controllers.
[Group operation of indoor units]
To perform a group operation of indoor units, connect terminals M1 and M2 on the terminal block (TB5) on the main
indoor unit in the group, to the terminal block on the M-NET remote controller. (Non-polarized 2-core cable)
M-NET remote controller is connectable anywhere on the indoor-outdoor transmission line.
To perform a group operation of indoor units that have different functions, set the indoor unit in the group with the
greatest number of functions as the main unit.
4) LOSSNAY connection
Same as [4] 4.
5) Switch setting
Address setting is required as shown on the next page.
Wiring method
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[ II Restrictions ]