Current Release Control - Fujitsu ACUH09LUAS1 Service Manual
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- Design & technical manual (96 pages) ,
- Design & technical manual (96 pages)
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8-3. Current release control
The compressor frequency is controlled so that the outdoor unit input current does not exceeds cur-
rent limit value set according to the outdoor temperature.
The compressor frequency returns according to the operation mode, when the current becomes low-
er than the release value.
¢ Model: AOUH09LUAS1
Operation mode
Cooling
Heating
¢ Model: AOUH12LUAS1
Operation mode
Cooling
Heating
¢ Model: AOUH18LUAS1
Operation mode
Cooling
Heating
8-3. Current release control
Outdoor temp. (Ta)
122.0°F (50°C) ≤ Ta
114.8°F (46°C) ≤ Ta < 122.0°F (50°C)
104.0°F (40°C) ≤ Ta < 114.8°F (46°C)
53.6°F (12°C) ≤ Ta < 104.0°F (40°C)
35.6°F (2°C) ≤ Ta < 53.6°F (12°C)
Ta < 35.6°F (2°C)
62.6°F (17°C) ≤ Ta
53.6°F (12°C) ≤ Ta < 62.6°F (17°C)
41.0°F (5°C) ≤ Ta < 53.6°F (12°C)
Ta < 41.0°F (5°C)
Outdoor temp. (Ta)
122.0°F (50°C) ≤ Ta
114.8°F (46°C) ≤ Ta < 122.0°F (50°C)
104.0°F (40°C) ≤ Ta < 114.8°F (46°C)
53.6°F (12°C) ≤ Ta < 104.0°F (40°C)
35.6°F (2°C) ≤ Ta < 53.6°F (12°C)
Ta < 35.6°F (2°C)
62.6°F (17°C) ≤ Ta
53.6°F (12°C) ≤ Ta < 62.6°F (17°C)
41.0°F (5°C) ≤ Ta < 53.6°F (12°C)
Ta < 41.0°F (5°C)
Outdoor temp. (Ta)
122.0°F (50°C) ≤ Ta
114.8°F (46°C) ≤ Ta < 122.0°F (50°C)
104.0°F (40°C) ≤ Ta < 114.8°F (46°C)
53.6°F (12°C) ≤ Ta < 104.0°F (40°C)
35.6°F (2°C) ≤ Ta < 53.6°F (12°C)
Ta < 35.6°F (2°C)
62.6°F (17°C) ≤ Ta
53.6°F (12°C) ≤ Ta < 62.6°F (17°C)
41.0°F (5°C) ≤ Ta < 53.6°F (12°C)
Ta < 41.0°F (5°C)
- (04-33) -
Trigger condition
Release condition
4.0 A
4.0 A
5.0 A
6.0 A
6.0 A
6.0 A
5.5 A
7.0 A
7.5 A
8.5 A
Trigger condition
Release condition
4.5 A
4.5 A
6.0 A
8.5 A
8.5 A
8.5 A
7.0 A
9.0 A
10.0 A
10.0 A
Trigger condition
Release condition
4.5 A
4.5 A
6.0 A
10.0 A
10.0 A
10.0 A
7.0 A
9.0 A
12.5 A
12.5 A
3.5 A
3.5 A
4.5 A
5.5 A
5.5 A
5.5 A
5.0 A
6.5 A
7.0 A
8.0 A
4.0 A
4.0 A
5.5 A
8.0 A
8.0 A
8.0 A
6.5 A
8.5 A
9.5 A
9.5 A
4.0 A
4.0 A
5.5 A
9.5 A
9.5 A
9.5 A
6.5 A
8.5 A
12.0 A
12.0 A
8. Various protections
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