In Normal Condition - Hitachi PC-ALHZF Installations- Und Betriebshandbuch

Operation
5.2 SENDING COMMANDS FROM CONTROLLER
• The operation commands are sent by pressing the required
operation switch by facing the transmitter of the wireless re-
mote control switch toward the receiver of the indoor unit.
• When commands are sent from the wireless remote control
switch, it should face vertically and be as close as possible to
the receiver kit. The capable distance for transmitting will get
shorter in case that the transmitting angle is not vertical to the
receiver or an electronic type light is used in the room, etc.
• The wireless remote control switch has directivity against the
receiver.
• The distance for transmitting will get shorter due to battery
consumption. In this case, replace the battery.
5.3 RECEIPT CONFIRMATION OF RECEIVER KIT
The " " lamp (yellow) on the receiver part of the indoor unit
is turned ON for an instant when the receiver kit receives the
commands from the wireless remote control switch. In the case
that the " " lamp (yellow) is not turned ON, the controls may
not have reached the receiver. Send the commands again.
N O T E
• The " " lamp (yellow) is turned ON with the beep sound for
receipt confirmation.
• The beep sound may not be heard by surrounding noise.
5.4 INDICATION OF RECEIVER KIT

5.4.1 In Normal Condition

Defrost
  
• Defrost operation: DEF indicator (green) is turned ON during
the defrosting. The indoor fan is stopped. The louver is fixed
at the horizontal position. However, the louver indication of
LCD continues to activate.
• Operation stoppage during defrosting operation: The RUN
indicator (red) is turned OFF when the operation is stopped
during the defrosting. However, the operation continues with
turning ON DEF indicator (green), and the unit is stopped af-
ter the defrost operation is finished.
Filter sign
  
The cleaning period for air filter is notified by turning ON the
FILTER indicator (yellow)
(The detail of cleaning method and filter cleaning time should be
referred to the installation and operation manual of the indoor
unit.)
After cleaning, point the transmitter towards the receiver kit and
press "RESET" switch to turn OFF the FILTER indicator.
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Wireless remote
control switch
(The figure shows for the wall type indor unit (RPK).)
Beep
Wireless remote
control switch
Instantly turning ON
(yellow)
Central Control
  
When " " lamp (yellow) remains turning ON, the indoor unit
is under the centralized control. In this case, "RESET" and "RUN/
STOP" switches are only available to control from the wireless
remote control switch.
Periodic check (only for gas heat pump air conditioner)
For the gas heat pump air conditioning, the periodic check is
required because the engine is equipped.
If the indication lamp flashes in follows, the periodic check shall
be performed.
Contact your distributor or contractor to request the maintenance.
• When the FILTER indicator (yellow) and the TIMER indicator
(green) flash slowly (2 seconds ON/ 2 seconds OFF cycle),
it is notified that the periodic check for outdoor unit is nearby.
• When the FILTER indicator (yellow) and the TIMER indicator
(green) flash quickly (0.5 seconds ON/ 0.5 seconds OFF cy-
cle), it is notified that the periodic check time for outdoor unit
is passed. Contact beforehand your distributor or contractor
to request the maintenance.
Receiver kit
(Receiver
COOL
HEAT
part)
Capable Distance for
Transmitting: Max. 5m
COOL
HEAT
EMERGENCY
RUN
COOL
DEF
HEAT
FILTER
TIMER
Receiver
part