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En-15
OPERATION DETAILS
Temperature and Humidity Range
Operation and Performance
* Heating Performance
● This air conditioner uses a heat pump which absorbs heat
from outside air and brings it indoors. As a result, its heat-
ing performance is reduced as the temperature of out-
side air drops. If you find that insufficient 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.
*
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 DEFROST will be displayed on the
remote controller. It will take anywhere from 4 to 15 min-
utes before the air conditioner starts up again.
*
When Indoor and Outdoor Temperatures are High
When both indoor and outdoor temperatures are high dur-
ing use of the heating mode, the outdoor unit’s fan may stop
at times.
Instructions relating to heating(*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).
Please read and understand the following details regarding this air conditioner.
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 inter-
mittently.
● Should the power supply to the air conditioner be inter-
rupted by a power failure, the air conditioner will restart
automatically in the previously selected mode once the
power is restored.
AUTO Restart
In Event of Power Interruption
● 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.
*Heating Mode
—
About 32 to 75 °F
About 17 to 75 °F
About 86 °F or less
—
COOLING MODEL
Outdoor temperature
Indoor temperature
Indoor humidity
● If the air conditioner is used under higher temperature conditioner 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.
● Do not use this unit for any purposes other than the Cooling, (*)Heating, Dehumidifying, and air-circulation of rooms in
ordinary dwellings.
Cooling/Dry Mode
About 32 to 115 °F
About 32 to 115 °F
About 65 to 90 °F
About 80 % or less
If the unit is used for long pe-
riods under high-humidity
conditions, condensation
may form on the surface of
the indoor unit, and drip onto
the floor or other objects un-
derneath.
HEAT &
COOL MODEL
(Reverse Cycle)
AUU18RC
AUU24RC
AUU36RC
AUU42RC