Fujitsu AOU12RL2, ASU12RL2, AOU09RL2 manual Heating Operation, Dry Operation

2. HEATING OPERATION

A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation frequency of the compressor.

*If the room temperature is lower by 3°C (6°F) than a set temperature, the compressor operation frequency will attain to maximum performance.

*If the room temperature is some degrees higher than a set temperature,

the compressor will be stopped.

*When the room temperature is between +2.5°C (+5°F) to -3°C (-6°F) of the setting temperature, the compressor frequency is controlled within the range shown in Table 3.

However, the maximum frequency is limited shown in Table 4 based on the fan mode.

( Table 3 : Compressor frequency range )

	Minimum	Maximum
	frequency	frequency
AOU09RL2	18rps	80rps
AOU12RL2		120rps

( Table 4 : Limit of maximum speed based on outdoor temperature )

	Indoor fan mode
	Hi	Me	Lo	Quiet	Auto
AOU09RL2			80rps
AOU12RL2			120rps

3. DRY OPERATION

The compressor frequency shall change according to the temperature, set temperature,

and room temperature variation which the room temperature sensor of the indoor unit body has detected as shown in the Table 5.

However, after the compressor is driven, the indoor unit shall run at operation frequency of (09 : 52 rps, 12 : 61 rps) for 60 seconds.

( Table 5 : Compressor frequency in Dry mode)

		Operating
		frequency
AO09RL2	X zone	30rps
	J zone	28rps
	Y zone	0rps

		Operating
		frequency
AO12RL2	X zone	33rps
	J zone	25rps
	Y zone	0rps

( Fig.2 : Compressor control based on room temperature )

		When the room
When the room		temperature rises
temperature drops			Ts+1.5°C (Ts+3°F)
Ts+0.5°C (Ts+1°F)	X zone
			Ts -0.5°C (Ts-1°F)
Ts -1.5°C (Ts-3°F)	J zone
	Y zone

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