Temperature And Humidity Range - Fujitsu AUT Series Operating Manual

OPERATING TIPS
G The operating mode (heating mode or cooling (dry)
❖
mode) of the outdoor unit will be determined by the op-
erating mode of the indoor unit that was operated first.
If the indoor unit was started in fan mode, the operating
mode of the outdoor unit will not be determined.
For example, if indoor unit (A) was started in fan mode
and then indoor unit (B) was then operated in heating
mode, indoor unit (A) would temporarily start opera-
tion in fan mode but when indoor unit (B) started oper-
ating in heating mode, the OPERATION indicator lamp
for indoor unit (A) would begin to flash (1 second on, 1
second off) and it would go into standby mode. Indoor
unit (B) would continue to operate in heating mode.
Notice
Instructions relating to heating (*) are applicable only to "HEAT & COOL MODEL" (Reverse Cycle).
*G During use of the heating mode, the outdoor unit will
occasionally commence the defrost operation for brief
periods. During the defrosting operation, if the user sets
the indoor unit for heating again, the defrosting mode
will continue, and the heating operation will begin after
completion of defrosting, with the result that some time
may be required before warm air is emitted.

TEMPERATURE AND HUMIDITY RANGE

Permissible ranges of temperature and humidity are as follows:
Cooling / Dry
Outdoor temperature
Operation
Indoor temperature
Indoor humidity
Outdoor temperature
Heating Operation
Indoor temperature
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.
G Do not use the air conditioner for any purpose other than room cooling/dry, room heating or fan.
*G During use of the heating mode, the top of the indoor
unit may become warm, but this is due to the fact that
coolant is circulated through the indoor unit even when
it is stopped; it is not a malfunction.
Invereter Single Model
About –10 °C to 46 °C
About 18 °C to 32 °C
Below approximately 80%.
If the air conditioner is used continuously for many hours,
water may condense on the surface and drip.
About –15 °C to 24 °C
About below 30 °C
Inverter Multi Model
About 0 °C to 46 °C
About 18 °C to 32 °C
About –10 °C to 24 °C
About below 30 °C
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