281
Optional Function
● External Output Function Setting
The following signals can be picked up from the outdoor unit PCB.
Refer to the table 4.2 for the required main parts.
4.2.7 Output Operation Signal (Control Function No.1)
This function is utilized to receive the operation signal.
Auxiliary relay contacting (RYa) is closed during the operation. Operation signal will be sent to output terminals when the
indoor units are operating. (Even when one (1) indoor unit is operating, the signal will be sent.) This function can be used for
circulator or humidier operation.
4.2.8 Output Alarm Signal (Control Function No.2)
This function is utilized to receive the alarm signal.
Auxiliary relay contacting (RYa) is closed when the alarm occurs. Alarm signal will be sent to output terminals when the alarm
occurs from the indoor units. (The signal will be sent even when the alarm occurs from one (1) indoor unit.)
• Setting Example
Operation Signal at Output 1 (between 1 and 2 pins of CN16)
Wiring Diagram Example of Operation Signal
1 2
CN16
RYa
RY
3P Connector Housing
CN16 Connector
Outdoor Unit
PCB
Auxiliary Relay
123
• Setting Example
Alarm Signal at Output 2 (between 1 and 3 pins of CN16)
Wiring Diagram Example of Alarm Signal
1 3
CN16
RYa
RY
3P Connector Housing
CN16 Connector
Auxiliary Relay
Outdoor Unit
PCB
1 2 3
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