High Temperature And High Pressure Release Control - Fujitsu ARXG45KHTA Service Manual

7-7. High temperature and high pressure release control

The compressor is controlled as follows.
¢ Models: AOYG45KRTA and AOYG54KRTA
• Cooling mode
Indoor unit heat exchanger
temperature rises
AB
BC
Zone C
Zone
Zone A Compressor is stopped.
Zone B The compressor frequency is decreased.
Zone C
The protection is released and the operation is returned to normal mode.
Zone D
7-7. High temperature and high pressure release control
Indoor unit heat exchanger
temperature drops
Zone A
Zone B
Stable zone
CD
Zone D
- (04-25) -
AB: 64°C
BC: 60°C
CD: 58°C
Operation
-7 rps/120 sec.
7. Various protections