6
English
6. OPERATION PROCEDURE
• Operation procedure varies according to the com-
bination of outdoor unit and remote controller.
Read the chapter “What to do before operation”.
• To protect the unit, turn on the main power switch
6 hours before operation.
And do not turn off the power supply during the air
conditioning season because of smoothly start
up.
• If the main power supply is turned off during oper-
ation, operation will restart automatically after the
power turns back on again.
6-1 COOLING, HEATING AND FAN ONLY
OPERATION
OPERATING THE SYSTEM (Refer to figure 3)
Press the operation mode selector button sev-
eral times and select the operation mode of
your choice;
“
” Cooling operation
“
” Heating operation
“
” Fan only operation
NOTE
• The operation mode cannot be changed with
the remote controller whose display shows
“
” (changeover under control).
Change the operation mode with the remote
controller whose display does not show
“
”.
• When the display “
” (changeover
under control) flashes, refer to the chapter
“6-5 SETTING THE MASTER REMOTE
CONTROLLER”.
Press the on/off button.
The operation lamp lights up and the system
starts operation.
ADJUSTMENT (Refer to figure 3)
For adjustment the desired temperature, fan
speed and airflow direction (only for the remote
controller BRC1A51: FXC, FXF, FXH, FXK,
FXA), follow the procedure shown below.
Press the temperature setting button and set
the desired temperature.
Each time this button is pressed, the tem-
perature setting rises or lowers 1°C.
NOTE
• Set the temperature within the operation range.
• The temperature setting is impossible for fan
only operation.
Press the fan speed control button and select
the fan speed of your preference.
NOTE
• For machine protection the system may con-
trol the airflow rate automatically.
• The airflow rate may be adjusted automati-
cally depending on the room temperature or
the fan may stop immediately. This is not a
malfunction.
• It may take sometime for finishing to change
the airflow rate.
This is normal operation.
Press airflow direction adjust button.
Refer to the chapter “6-3 ADJUSTING THE
AIRFLOW DIRECTION” for details.
STOPPING THE SYSTEM (Refer to figure 3)
Press the on/off button once again.
The operation lamp goes off and the system
stops operation.
NOTE
• The fan may keep on running for about
1 minute after the heating operation stops
for removing the heat in the indoor unit.
• Do not turn off the power immediately after
the unit stops.
The system need at least 5 minutes for
residual operation of drain pump device.
Turning off the power immediately will cause
water leak or trouble.
EXPLANATION OF HEATING OPERATION
• In general, heating operation may take longer to
reach the set temperature than in cooling operation.
We recommend starting the operation which was
used before using timer operation.
• The following operation is performed in order to
prevent the heating capacity from dropping or
cold air from blowing.
Defrost operation
• In heating operation, freezing of the outdoor
unit heat exchanger increases. Heating
capability decreases and the system goes
into defrost operation.
• The airflow will be set to breeze or stop.
• If stopped, the display of the remote control-
ler shows “
”.
• Once the airflow is set to breeze or stop, the
air conditioner will return to the previous
state in approximately 10 to 15 minutes.
Hot start
• In order to prevent cold air from blowing out
of an indoor unit at the start of heating oper-
ation, the indoor fan is automatically
stopped. The display of the remote controller
shows “
”.
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