Compressor Temperature Protection; High Pressure Protection - Fujitsu ASTG30KMTC Service Manual

8-5. Compressor temperature protection

When the compressor temperature sensor detects higher than the trigger condition below, the com-
pressor is stopped. When the compressor temperature sensor detects the release condition, the pro-
tection is released.
Trigger condition
Release condition

8-6. High pressure protection

Trigger condition
Release condition
8-7. Low outdoor temperature protection
When the outdoor temperature sensor detects lower than the trigger condition below, the compres-
sor is stopped.
Operation mode
30 model
34 model
8-5. Compressor temperature protection
Trigger condition
Release condition
Trigger condition
Release condition
- (04-28) -
108°C
80°C
(3 minutes after compressor stop)
Pressure switch: Off (Open: Higher than 4.2 MPa)
Compressor stop
Pressure switch: On (Close: Lower than 3.2 MPa)
(3 minutes after compressor stop)
Compressor restart
Cooling/Dry
-20°C
-15°C
-20°C
-15°C
Heating
-25°C
-20°C
8. Various protections