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5-14
Service Manual
EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING
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Alarm Signal at Output 2 (between 1 and 3 pins of CN16)
Wiring Diagram Example of Alarm Signal
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Operation Signal at Output 1 (between 1 and 2 pins of CN16)
Wiring Diagram Example of Operation Signal
(2)
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. The 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 indoor unit.)
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External Output Function Setting
(1)
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. The operation signal will be sent to output
terminals when the indoor units are operating. (Even when one indoor unit is operating, the signal will be
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The following signals can be picked up from the outdoor unit PCB.
Refer to Table 5.2 for the required auxiliary relay.
1
3
CN16
RYa
RY
3P Connector Housing
CN16 Connector
Auxiliary Relay
Outdoor Unit
PCB
1 2 3
1
2
CN16
RYa
RY
3P Connector Housing
CN16 Connector
Outdoor Unit
PCB
Auxiliary Relay
1 2 3
Summary of Contents for YVAHP072B31S
Page 2: ......
Page 10: ...viii Service Manual ...
Page 16: ......
Page 17: ...Service Manual 1 1 INSTALLATION 1 Installation ...
Page 577: ...Service Manual 1 561 INSTALLATION 9 Touch Back to return to the Service Menu screen 9 ...
Page 920: ......
Page 921: ...Service Manual 2 1 OPERATION 2 Operation ...
Page 1315: ...Service Manual 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Page 1461: ...Service Manual 4 1 MAINTENANCE 4 Maintenance ...
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Page 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Page 1738: ...6 10 Service Manual FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A ft 3 l b ...
Page 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
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Page 1796: ... 2015 Johnson Controls Inc SM 15001 ...