System Status Output; Wiring For Group Operation - Toshiba RAV-104SBH-PE Service Manual

An auxiliary display output circuit (+12V) is available at CN13 on the Indoor PCB to display the
operation for compressor, operation (Fan only) and abnormality.
An optional accessory RBC-IM1-PE is available to display the above signals.
Up to 16 units can be controlled as a group by one remote controller.
1. Align the phase sequence of the power supply to all Outdoor Units.
2. Connect the terminals A, B, C on both the remote controller and the Indoor Unit of No. 1 unit.
3. Connect terminals B, C on both Indoor Units of No. 1 and No. 2 unit. Then connect in the same
way No. 2 and No. 3, No. 3 and No. 4 ... up to No. 16 unit.
Indoor Unit
No. 1
A B C
A B C
Remote
Controller
4. Remove the CN12-connector on the indoor PCB of No. 2 unit and up to No. 16 unit to prevent
malfunction.
5. Set each unit No. rotary switch on the indoor PCB. The unit connected to the remote controller
should be set as No. 1 unit. Then set the next unit as No. 2 up to No. 16 so that the start time of
each unit is respectively delayed to prevent large simultaneous starting currents.
Rotary switch
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10. SYSTEM STATUS OUTPUT

11. WIRING FOR GROUP OPERATION

Indoor Unit Indoor Unit
No. 2
A B C A B C
Make sure of correspondence of terminal marks
CN12
SW01
100
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No. 3
CN02
CN01
SW05 SW04
Indoor Unit
No. 16
A B C
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