– 14 –
27-EN
28-EN
EN
FR
11
Operations and performance
Check before running
Check whether the earth wire is cut or disconnected.
Check whether the air filter is installed.
Turn on the circuit breaker 12 hours or more before
starting operation.
3 minutes protection function
3-minutes protection function prevents the air
conditioner from starting for initial 3 minutes after the
main power switch / circuit breaker is turned on for re-
starting the air conditioner.
Power failure
Power failure during operation will stop the unit
Group control
completely.
To restart the operation, push the ON / OFF button
on the remote controller.
Lightning or a wireless car telephone operating
nearby may cause the unit to malfunction. Turn off
the main power switch or circuit breaker and then
turn them on again. Push the ON / OFF button on the
remote controller to restart.
Protective device
Stops operation when the air-conditioner is
overloaded.
If the protective device is activated, the unit stops
running, and the operation indicator and check
indicator on the remote controller blink.
If the protective device is activated
Turn off the circuit breaker and perform a checkup.
Continued running may cause a malfunction.
Check whether the air filter is installed. If not, the
heat exchanger may be clogged with dust and water
leakage may occur.
During cooling
The air intake or discharge of the outdoor unit is
clogged.
Strong wind continuously blows against the
discharge of the outdoor unit.
Do not turn off the circuit breaker
During the air-conditioning season, leave the circuit
breaker turned on, and use the ON / OFF key on the
remote controller.
Air conditioner operating conditions
For proper performance, operate the air conditioner under the following temperature conditions:
If air conditioner is used outside of the above conditions, safety protection may work.
Cooling operation
Outdoor temperature
:
°C to 4
°C (Dry bulb temp.)
Room temperature
: 21 °C to 32 °C (Dry bulb temp.), 15 °C to 24 °C (Wet bulb temp.)
[CAUTION]
Room relative humidity – less than 80%. If the air conditioner operates in excess of
this figure, the surface of the air conditioner may cause dewing.
Up to 8 units can be operated simultaneously using a
wired remote controller (sold separately). For details,
consult you local dealer.
Confirmation and check
When an error occurred in the air conditioner, an error
code and indoor UNIT No. appear on the display part
of the remote controller.
The error code is only displayed during the operation.
If the display disappears, operate the air conditioner
according to the following “Confirmation of error log” for
confirmation.
Confirmation of error log
When an error occurred on the air conditioner, the error
log can be confirmed with the following procedure.
(The error log is stored in memory up to 4 errors.)
The log can be confirmed from both operating status
and stop status.
1
When pushing
and
buttons at the
same time for 4 seconds or more, the
following display appears.
If
is displayed, the mode enters in the error log
mode.
[
01
: Order of error log] is displayed in CODE
No..
[Error code] is displayed in CHECK.
[Indoor unit address in which an error occurred]
is displayed in Unit No..
2
Every pushing of
button used to set
temperature, the error log stored in memory
is displayed in order.
The numbers in CODE No. indicate CODE No.
[
01
] (latest)
→
[
04
] (oldest).
REQUIREMENT
Do not push
button because all the error log of the
indoor unit will be deleted.
3
After confirmation, push
button to return
to the usual display.
Error code
Indoor UNIT No. in
which an error occurred
3
2
1
1115653830_EN-TH.indd 14
1115653830_EN-TH.indd 14
7/14/2563 BE 10:14
7/14/2563 BE 10:14
