81
Installation
8.1.9.4
OPTIONAL INDOOR UNIT WIRING (ACCESSORIES)
eserved for functions.
All terminal boards only provide functional signals and do not drive high-power loads.
1/2: For transmission between outdoor unit and indoor unit.
A/B: For transmission between indoor unit and master controller.
Reserved for
functions.
All terminal boards on PCB4 can only use low voltage signals, so that high voltage must be prohibited.
PCB4
PCB5
TB4
TB3 TB2
Inputs and outputs printed on the board are the setting before shipment options. By means of the master controller, some
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