Specifications

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34
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(5) Inspection procedures of indoor electrical equipment
NO
YES
YES
YES
NO
NO
Is fuse (3.15A) blown?
Indoor electrical equipment
are normal.
Is voltage applied between
terminals 1~2 on terminal
block? (AC 220/230/240V)
Is DC 0~12V detected between
terminals 2~3 on terminal
block?
Replace fuse.
Replace PCB.
Replace PCB.
Notes (1) Since the communication timing signal is transmitted only when the 52C is turned ON, check it under the operating condition.
(2) Check the voltage on the terminal block.
¡ Power supply: Between 1~2 (AC 220/230/240V)
¡ Signal: Between 2~3 (Changing between DC 0~Approx. 12V)
(6) How to make sure of remote control
(1)
Is remote
control
normal?
YES
Again pushing
operating switch
Operating the
unit?
NO
Does operating Unit
ON/OFF button
YES
Replace the
display
Remote control
defects
Abnormal is not
fount
It is normal
Remote control
defects
NO
NO
YES
NO
Note (1) How to check the remote control.
(a) Press the reset switch of remote control.
(b) If the almost normal if entire display of remote control is shown after 1
indication.
Operating the unit?
Control unit defects
YES
Operating the
unit by remote
control?