Cooling Pressure Over-Rise Protection - Fujitsu ASTG30KMTC Service Manual

¢ Model: AOTG34KMTC
• Cooling
Outdoor temp. (Ta)
50°C ≤ Ta
46°C ≤ Ta < 50°C
40°C ≤ Ta < 46°C
38°C ≤ Ta < 40°C
31°C ≤ Ta < 38°C
19°C ≤ Ta < 31°C
13°C ≤ Ta < 19°C
7°C ≤ Ta < 13°C
0°C ≤ Ta < 7°C
-5°C ≤ Ta < 0°C
-10°C ≤ Ta < -5°C
-15°C ≤ Ta < -10°C
Ta < -15°C
Trigger condition/Release condition
• Heating
Outdoor temp. (Ta)
20°C ≤ Ta
12°C ≤ Ta < 20°C
Ta < 12°C
Trigger condition/Release condition

8-4. Cooling pressure over-rise protection

When the outdoor unit heat exchanger temperature reaches trigger condition below, the compressor
is stopped and trouble display is performed.
Trigger condition
8-3. Current release control
Outdoor unit fan speed (rpm)
950 890 800 780
12.5/12.0
13.5/13.0
16.5/16.0 10.0/9.5
17.5
/17.0
19.5/19.0
19.0
/18.5
Outdoor unit fan speed (rpm)
950 890 800
19.5/19.0
30 model
34 model
- (04-27) -
690 520 390
6.5/6.0
9.0/8.5
9.0/ 8.5
13.5
/13.0
10.0
/9.5
14.5
/14.0
15.5 10.0
11.0
/14.5 /9.5
/10.5
15.5 10.5
13.5
/15.0 /10.0
/13.0
12.5
/12.0
16.5/15.5 14.5/14.0
15.5/15.0
16.5/16.0
780 690 520
14.5/14.0
16.5/16.0
Unit: A
330 300 270 250
5.0/4.5
6.0/5.5
12.0 10.0
/11.5 /9.5
11.5
/11.0
12.5/12.0
8.0
/7.5
13.0/12.5
410 280 250
16.5/16.0
65°C
68°C
8. Various protections