Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook page 48

1) Indoor/outdoor transmission line
Daisy-chain terminals M1 and M2 on the terminal block for indoor-outdoor transmission line (TB3) on the outdoor unit
(OC), terminals M1 and M2 of the terminal block for indoor-outdoor transmission line (TB02) on the main BC control-
ler (BC) and the sub BC controller (BS), and terminals M1 and M2 on the terminal block for indoor-outdoor transmis-
sion line (TB5) on each indoor unit (IC). (Non-polarized 2-core cable)
Only use shielded cables.
[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) MA remote controller wiring
Same as [4] 1.
[When 2 remote controllers are connected to the system]
Same as [4] 1.
[Group operation of indoor units]
Same as [4] 1.
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 ]