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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Fujitsu ASU12RL2, AOU12RL2, AOU09RL2 manual Cooling Operation