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14-2-4. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit
This function is provided to open or close forcedly PMV for 2 minutes in all the indoor units by the switch opera-
tion on the interface P.C. board of the header unit.
After then, it is also used to open PMV fully when turning off the power and executing an operation.
<Operation>
[Open fully]
Set the switch SW01 on the interface P.C. board of the header unit to [2], SW02 to [3], SW03 to [1], and push
SW04 for 2 seconds or more.
(Display appears on 7-segment display for 2 minutes as follows.)
[P ] [ FF]
[Close fully]
Set the switch SW01 on the interface P.C. board of the header unit to [2], SW02 to [3], SW03 to [1], and push
SW05 for 2 seconds or more.
(Display appears on 7-segment display as follows.)
[P ] [ 00]
[Clear]
After 2 minutes (1 minutes for “Close fully”) passed when setup has finished, the opening automatically
returns to the normal opening.
14-2-5. Pulse Motor Valve (PMV) Forced Open Fully/Close fully Function in
Outdoor Unit
This function is provided to forcedly open or close fully Pulse Motor Valve (PMV1/PMV2) used in the outdoor
unit for 2 minutes.
[Open fully]
Short-circuit for CN30 on the outdoor interface P.C. board.
[Close fully]
Short-circuit for CN31 on the outdoor interface P.C. board.
[Clear]
After 2 minutes, the opening returns to the normal opening.
Be sure to remove the short-circuited cord after confirmation.
I/F P.C. board
Check connector
CN30
Check connector
CN31
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