Operation Details - Fujitsu General AK Series Operating Manual

OPERATION DETAILS

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 heating
performance is reduced as the temperature of outside
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 Defrost-
ing
When outside air temperatures are low and humidity is high,
using the Heating mode may result in the creation of frost
inside the outdoor unit, lowering its heating performance.
A built-in microcomputer is used to monitor this condition
and when necessary, the defrosting mode operates, resulting
in a temporary interruption of the Heating mode (both indoor
and outside fans will stop). About 7 to 15 minutes will
be required for normal operation to be resumed.
Temperature and Humidity Range
Permissible ranges of temperature and humidity are as
follows:
Cooling Outdoor temperature:
Operation About 21°C to 43°C
Indoor temperature:
About 21°C to 32°C
Indoor humidity:
About 80% or less. If the unit is used for
long periods under conditions of high
humidity, water may condense on and
drip from the surface of the unit.
Heating Outdoor temperature:
Operation About 0°C to 21°C
Indoor temperature:
About 30°C or less
If the unit is used under higher temperature conditions than
those noted here, the automatic protection circuit may
operate, 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
malfunction.
● Do not use the air conditioner for any purpose other than
room cooling or room heating.
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