Fujitsu AUU18RC, AUU42RC Operation Details, En-15, Operation and Performance, Auto Restart

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.

* 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.

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.

●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.

Temperature and Humidity Range

			Cooling/Dry Mode	*Heating Mode
Outdoor temperature
	COOLING MODEL		About 32 to 115 °F	—
	HEAT &	AUU18RC		About 32 to 75 °F
		AUU24RC
	COOL MODEL		About 32 to 115 °F
		AUU36RC
	(Reverse Cycle)			About 17 to 75 °F
		AUU42RC
Indoor temperature			About 65 to 90 °F	About 86 °F or less
Indoor humidity			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.

●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.

En-15