Emergency Operation; Operation With Wired Remote Control - Hitachi PC-ARF Technical Catalogue

4 Individual remote controls
Receiver kit for wireless remote control
Power failure
• All the indications are OFF.
• Once the unit is stopped by the power failure, the unit will not be started again although the power recovers. Perform
the starting procedures again.
• In case of instantaneous power failure within 2 seconds, the unit will be started again automatically.
Electric noise
There could be a case that all the indications are OFF and the unit is stopped. This is occurred by the activation of the micro
computer for the unit protection from the electric noise.
Perform the starting procedures again.

4.5.8.3 Emergency operation

"COOL" and "HEAT" switches are used for emergency operation when the wireless remote control (PC-LH3(A/B)) is unus-
able by batteries shortage, etc.
On the wall receiver kit
EMERGENCY
RUN
COOL
DEF
HEAT
FILTER
TIMER
1 Switch "COOL":
- Press "COOL" so that the cooling operation is started.
- Press "COOL" again so that the cooling operation is stopped.
2 Switch "HEAT":
- Press "HEAT" so that the heating operation is started.
- Press "HEAT" again so that the heating operation is stopped.
N O T E
• The setting temperature and the fan speed for cooling/heating operation are the same as before starting emergency operation.
• During the emergency operation, "

4.5.8.4 Operation with wired remote control

The indoor unit can also be operated with a wired remote control in addition of the installed receiver kit for wireless use.
Contact your dealer for more details.
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TCGB0106 rev.0 - 12/2014
On the panel receiver kit
Switch "COOL"
Switch "HEAT"
" lamp (yellow) flashes (0.5 second ON / 0.5 second OFF).
Wired remote
control switch
(PC-ARF)
TIMER FILTER DEF RUN
EMERGENCY
HEAT COOL
Switch "HEAT Switch "COOL"
Wireless remote
control switch
(PC-LH3B)
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