26-EN25-EN
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8 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 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.
Defrosting operation
If the outdoor unit is frosted during the heating operation,
defrosting starts automatically (for approximately 2 to 10
minutes) to maintain the heating capacity.
• The fans in both indoor and outdoor units will stop during
the defrosting operation.
• During the defrosting operation, the defrosted water will
be drained from the bottom plate of the outdoor unit.
Heating capacity
In the heating operation, the heat is absorbed from the
outside and brought into the room. This way of heating is
called heat pump system. When the outside temperature is
too low, it is recommended to use another heating apparatus
in combination with the air conditioner.
Air conditioner operating conditions
For proper performance, operate the air conditioner under the following temperature conditions:
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.
During heating
• The air filter is clogged with a large amount of dust.
• The air intake or discharge of the indoor unit is clogged.
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.
Attention to snowfall and freeze on the
outdoor unit
• In snowy areas, the air intake and air discharge of the
outdoor unit are often covered with snow or frozen up.
If snow or freeze on the outdoor unit is left as it is, it may
cause machine failure or poor warming.
• In cold areas, pay attention to the drain hose so that it
perfectly drains water without water remaining inside for
freeze prevention. If water freezes in the drain hose or
inside the outdoor unit, it may cause machine failure or
poor warming.
Cooling operation
Outdoor temperature : –15°C to 46°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
fi gure, the surface of the air conditioner may cause dewing.
Heating operation
Outdoor ttemperature
: –15°C to 15°C (Wet bulb temp.)
Room temperature : 15°C to 28°C (Dry bulb temp.)
If air conditioner is used outside of the above conditions, safety protection may work.
■
Confi rmation and check
If there is something unusual even after checking the above, stop running the unit, turn off the circuit breaker, and
inform the dealer where you purchased the product of the product number and symptom. Do not attempt to repair
the unit by yourself as doing so is dangerous. If the check indicator (e0, f01, h01, etc. ) is displayed on the
wired remote controller LCD, inform the dealer of its content as well.
If the air conditioner fails, the timer off
indication will alternately display the
check code and the number of faulted
indoor unit.
Check code The number of faulted indoor unit
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Troubleshooting history and confi rmation
If the air conditioner fails, you can view the troubleshooting history by following the steps below.
(The troubleshooting history can record at most 4 records.)
The troubleshooting history can be viewed when the air conditioner is on or off.
• If you view the troubleshooting history in the timer off operation, the timer off will be cancelled.
Step Operating Instructions
1
Long press the timer off button for more than 10 seconds tillan indication
icon appears, indicating that you have entered the troubleshooting history
mode.
If [ Maintenance overhaul] is displayed, it indicates that you have entered
the troubleshooting history mode.
• The temperature indication displays [01: Troubleshooting History Order].
• The timer off indication will alternately display [Check Code] and the
faulted [Indoor Unit Number].
2
Press the set button each time, then the recorded troubleshooting history
will be displayed in the order of [01] (newest) to [04] (oldest).
Requirements
In the troubleshooting history mode, do not press the menu button for more
than 10 seconds. Otherwise, all troubleshooting history of the indoor unit
will be deleted.
3
After completing the check, press the ON/OFF button to return to normal
mode.
• It will continue to run if in the running mode. Please press the On/ Off
button again if in the stop mode.
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