(3) Fan test operation function
This function is provided to change collectively the mode of all the indoor units connected to the same
system for the fan test operation mode by using switches on the interface P.C. board of the header unit.
<Operation procedure>
NOTE) The test operation ends after 60 minutes and the operation returns to normal status.
[A]
[F. ]
[B]
[ – F]
Power ON
Operation
Operation check
Stop/End
Push the push switch SW4 for 2 seconds or more on the P.C. board.
[Test run] is displayed on the remote controller of
the indoor unit to be operated. Check that
7-segment display [B] on the interface P.C. board
of the header unit changed to [– C]
Match [SW01/SW02/SW03] on the interface P.C.board of the header
unit to [2/5/1]. (7-segment display [A] changes to [F. ].)
Be sure to turn on power of the indoor unit
and then turn on power supplies at outdoor unit side.
Return [SW01/SW02/Sw03] on the interface P.C. board of the header
unit to [1/1/1].
or push the push switch [SW05] for 2 seconds or more.
7-segment display [A] 7-segment display [B]
SW04 SW05
<Rotary switches>
SW01 SW02 SW03
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