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Temperature and humidity range
● The temperature and humidity required for operating this product is as
shown in the following table.
Cooling/Dry mode
Outdoor
Please refer to the specifi cations of outdoor units.
temperature
Indoor
About 64 to 90 °F DB
temperature
(18 to 32 °C DB)
Indoor humidity
About 80% or less
● If the air conditioner is operated under higher temperature conditions than
those listed, the built-in protection circuit may operate to prevent internal
circuit damage. Also, during Cooling and Dry modes, if the unit is used
under conditions of lower temperature than those listed above, the heat-
exchanger may freeze, leading to water leakage and other damage.
● If the unit is used for long periods under high-humidity conditions, con-
densation may form on the surface of the indoor unit, and drip onto the
fl oor or other objects underneath.
● Do not use this unit for any purposes other than the Cooling, Heating,
Dehumidifying, and air-circulation of rooms in ordinary dwellings.
CLEANING AND CARE
CAUTION
● Before cleaning the unit, be sure to stop the unit and disconnect the
power supply.
● Do not stand on an unstable platform when cleaning.
● When removing and replacing the air fi lters, be sure not to touch the heat
exchanger, as personal injury may result.
● When used for extended periods, the indoor unit may accumulate dust
inside, reducing its performance. We recommend that the indoor unit be
inspected regularly, in addition to your own cleaning and care. For more
information, consult authorized service personnel.
● Do not clean the inside of the unit by yourself. To clean the inside, always
consult authorized service personnel.
● When cleaning the unit's body, do not use water hotter than 104 °F (40
°C), harsh abrasive cleansers, or volatile agents like benzene or thinner.
● If dirt is allowed to accumulate on the air fi lter, airfl ow will be reduced,
lowering operating effi ciency and increasing noise.
During periods of normal use, the air fi lters should be cleaned regularly.
If dirt is allowed to accumulate on the air fi lter, airfl ow will be reduced,
lowering operating effi ciency and increasing noise.
En-3
Leave the breaker on for at least 12 hours before starting operation when it
is to be used again.
Heating mode
TROUBLESHOOTING
The following conditions are not breakdowns or opera-
About 50 to 86 °F DB
tion failures.
(10 to 30 °C DB)
Doesn't operate immediately:
● If the unit is stopped and then immediately started again, the compressor
● Whenever the electrical breaker is turned off then on again, the protection
Airfl ow is weak or stops:
● When Heating operation is started, indoor unit's fan may temporarily stop,
● During Heating operation, if the room temperature rises above the setting
● During Oil recovery operation, the airfl ow may stop for approximately 10
● During Heating operation, the unit will temporarily stop operation (be-
● The fan may operate at low speed during Dry operation or when the unit
● In the monitoring in the Auto mode, the fan will operate at low speed.
Indicator lamps are blinking:
(*Limited to only when the optional IR receiver unit is connected.)
● The Operation indicator lamp (green) fl ashes:
● The Operation indicator lamp (green) and Timer indicator lamp (orange)
● The Operation indicator lamp (green) and Timer indicator lamp (orange)
● The Operation indicator lamp (green) is on and the TIMER indicator lamp
Noise is heard:
● In the following conditions there are sounds of water fl owing from the
● During operation, a slight squeaking sound may be heard. This is the
● During Heating operation, a sizzling sound may be heard occasionally.
Smells:
● Some smell may be emitted from the indoor unit. This smell is the result
When not using for an extended period
will not operate for about 3 minutes, in order to prevent fuse blowouts.
circuit will operate for about 3 minutes, preventing unit operation during
that period.
to allow internal parts to warm up.
of the remote controller, the outdoor unit will stop, and the indoor unit's
fan will stop. If you wish to warm the room further, set a higher setting.
minutes. (Refer to "OPERATING TIPS")
tween 4 and 15 minutes) as the Automatic defrosting mode operates.
(Refer to "OPERATING TIPS")
is monitoring the room's temperature.
An oil recovery operation is being performed. (Refer to "OPERATING
TIPS")
The Automatic defrosting operation is being performed. (Refer to "OPER-
ATING TIPS")
are blinking alternately:
It has recovered from a power outage.
are blinking simultaneously:
It is operating in the test run mode. Ask a manager as there may be
maintenance being conducted.
(orange) is blinking:
This is the standby state. (Refer to "OPERATING TIPS")
indoor unit and the operation sound becomes loud. These are the refrig-
erant fl ow sound.
When operation starts
When oil recovery operation fi nishes
When Automatic defrosting operation fi nishes
result of minute expansion and contraction of the panel due to tempera-
ture changes.
This sound is produced by the Automatic defrosting operation. (Refer to
"OPERATING TIPS")
of room smells (furniture, tobacco, etc.) which have been taken into the
air conditioner.
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