Fujitsu ASU12RL2, AOU12RL2, AOU09RL2 manual Cooling Operation

1. COOLING 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 2°C(4°F) higher than a set temperature, the compressor operation frequency will attain to maximum performance.

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

the compressor will be stopped.

*When the room temperature is between +2°C(4°F) to -2.5°C(-5°F) of the setting temperature, the compressor frequency is controlled within the range shown in Table1.

However, the maximum frequency is limited in the range shown in Fig.1 based on the indoor fan mode and the outdoor temperature.

( Table 1 : Compressor frequency range )
			Minimum	Maximum		Maximum
			frequency	frequency		frequency
	AOU09RL2		18rps	57rps		80rps
	AOU12RL2			80rps		96rps
	When the compressor operates for 30 minutes continuously at over the maximum frequency ,
	the maximum frequency is changed from Maximum Frequency						to Maximum Frequency.
	( Fig.1 : Outdoor temperature zone )				( Table 2 : Limit of maximum speed based on outdoor temperature )
			When the outdoor				Outdoor		Indoor fan mode
	When the outdoor		temperature rises				temp. zone	Hi	Me	Lo	Quiet
						ASU09RL2	A zone	80rps	49rps	42rps	32rps
	temperature drops
				36°C			B zone	80rps	49rps	42rps	32rps
		A zone		(97°F)			C zone	80rps	49rps	42rps	32rps
	34°C						D zone	49rps	44rps	40rps	29rps
				32°C
	(93°F)						E zone	49rps	44rps	40rps	29rps
	30°C	B zone		(90°F)			F zone	49rps	44rps	40rps	29rps
				21°C		ASU12RL2	A zone	96rps	61rps	51rps	33rps
	(86°F)						B zone	96rps	61rps	51rps	33rps
		C zone		(70°F)
	19°C						C zone	96rps	61rps	51rps	33rps
				12°C			D zone	73rps	57rps	45rps	33rps
	(66°F)						E zone	73rps	57rps	45rps	33rps
		D zone		(54°F)
	10°C						F zone	73rps	57rps	45rps	33rps
				2°C
	(50°F)
	0°C	E zone		(36°F)
	(32°F)	F zone

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