High Temperature And High Pressure Release Control - Fujitsu ASUG09LZAS Service Manual

8-6. High temperature and high pressure release control

The compressor is controlled as follows.
¢ Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1
Indoor unit heat exchanger
temperature rises
Zone A
AB
Zone B
BC
Zone C
CD
Zone D
Zone E
Zone
Zone A Compressor is stopped.
Zone B
The compressor frequency is decreased.
Zone C
Zone D
The protection is released and the operation is returned to normal mode.
Zone E
8-6. High temperature and high pressure release control
Indoor unit heat exchanger
temperature drops
Stable zone
DE
- (04-31) -
AB: 63°C
BC: 55°C
CD: 53°C
DE: 50°C
Operation
-25 rps/120 sec.
-3 rps/60 sec.
8. Various protections