Operation Details - Fujitsu AUT36A Operating Manual

OPERATION DETAILS

Instructions relating to heating(*) are applicable only to "HEAT & COOL MODEL" (Reverse Cycle).
Please read and understand the following details regarding this air conditioner.
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.
* 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.
AUTO Restart
In Event of Power Interruption
● 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.
Temperature and Humidity Range
Permissible ranges of temperature and humidity are as fol-
lows:
Cooling Outdoor temperature:
About 0 °C to 52 °C
Operation
Indoor temperature:
About 18 °C to 32 °C
Indoor humidity:
Below approximately 80 %. If the air
conditioner is used continuously for
many hours, water may condense
on the surface and drip.
* Heating
Outdoor temperature:
About -8 °C to 21 °C
Operation
Indoor temperature:
About below 30 °C
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* 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.
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.
● 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.
If the unit is used under higher temperature conditions than
those noted here, the automatic protection circuit may op-
erate, interrupting the operation. If the unit is used under
lower temperature conditions than those noted here, the heat
exchanger may freeze, causing water leakage or other mal-
function.
● Do not use the air conditioner for any purpose other than
room cooling, room heating, or fan.