Fujitsu AOTG30KMTC, Service Manual, Page: 160 / 199

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 108°C
Release condition
80°C
(3 minutes after compressor stop)
8-6. High pressure protection
Trigger condition
Pressure switch: Off (Open: Higher than 4.2 MPa)
Compressor stop
Release condition
Pressure switch: On (Close: Lower than 3.2 MPa)
(3 minutes after compressor stop)
Compressor restart
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 Cooling/Dry Heating
30 model
Trigger condition -20°C -25°C
Release condition -15°C -20°C
34 model
Trigger condition -20°C
Release condition -15°C
8-5. Compressor temperature protection
- (04-28) -
8. Various protections
CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS