Operating instructions

En-9
Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
* Microcomputer-controlled Automatic
Defrosting
When the outside temperature is low and the humidity high, frost
will collect on the outside unit, reducing heater effi ciency. When
this happens, the computer will automatically start the defrost
cycle. During the defrost cycle, the indoor fan will shutdown and
the defrost indicator of the remote controller will turn on. It will
take anywhere from 4 to 15 minutes before the air conditioner
starts up again.
Low Ambient Cooling
When the outdoor temperature drops, the outdoor unit’s fans
may switch to Low Speed, or one of the fans may stop intermit-
tently.
* Heating Performance
● This air conditioner uses a heat pump which absorbs heat
from outside air and brings it indoors. As a result, its heating
performance is reduced as the temperature of outside air
drops. If you fi nd that insuffi cient room heat is produced, we
recommend that you use the air conditioner together with
other heating appliances.
● Heat-pump type air conditioners use warm-air recirculation to
warm your entire room. As a result, some time will be required
after starting operation until your entire room becomes warm.
* When Indoor and Outdoor Tempera-
tures are High
When both indoor and outdoor temperatures are high during use
of the heating mode, the outdoor unit’s fan may stop at times.
OPERATING DETAILS
In Event of Power Interruption
● Should the power supply to the air conditioner be interrupted
by a power failure, the air conditioner will restart automatically
in the previously selected mode once the power is restored.
Operation and Performance
AUTO Restart
Group Control
Temperature and Humidity Range
● Use of other electrical appliances (electric shaver, etc.) or nearby
use of a wireless radio transmitter may cause the air conditioner
to malfunction. In this event, temporarily turn off the circuit breaker
turn it on again and then use the remote controller to resume
operation.
One remote controller can control up to 16 air conditioners.
All of the air conditioners will be operated with the same settings.
● 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 mode, if the unit is used under conditions of lower temperatures than those
listed above, the heat-exchanger may freeze, leading to water leakage and other damage.
● Do not use this unit for any purposes other than the Cooling, (*) Heating, and air-circulation of rooms in ordinary dwellings.
Permissible range of temperature and humidity are as follows:
Cooling Mode *Heating Mode
Outdoor temperature
COOLING MODEL About 0 to 52 °C —
HEAT & COOL MODEL
(Reverse Cycle)
About 0 to 46 °C About –10 to 21 °C
Indoor temperature
About 0 to 30 °C About below 30 °C
Indoor humidity About 80 % or less
If the unit is used for long
periods under high-humidity
conditions, condensation
may form on the surface
of the indoor unit, and drip
onto the fl oor or other objects
underneath.
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