APC Fluid Cooler 57MBH@20TD, 10GPM, 8 Feeds, 400/3/50 ACFC75257 Manuel D’Utilisation

The microprocessor controller shall 
activate a visible and audible alarm 
in the following occurrences:
All series:

• Cool Fail
• Air filter clogged
• Return air sensor fault
• Supply air sensor fault
• Rack temperature sensor fault
• High discharge pressure
• Low suction pressure
• Fan fault
• Water detected
• Condensate pump fault
• Air filter run hours violation
• Group communication fault
• Supply air high temperature 

violation

• Return air high temperature 

violation

• Filter DP sensor failure
• Suction pressure sensor failure
• Discharge pressure sensor failure
• Persistent high discharge pressure 

fault

• Rack inlet temperature high 

violation

• External communication fault
• Internal communication fault
• On standby input contact fault
• A-link isolation relay fault
• Excessive compressor cycling

• Condensate pan full
• Upper fan power supply fault
• Lower fan power supply fault
• Suction temperature sensor failure
• Persistent low suction pressure fault

• Condenser fluid valve actuator fault
• Outdoor heat exchanger (OHE) fault
• Factory configuration not completed
• Liquid refrigerant sensor failure

• Compressor drive communication 

fault

• Compressor drive fault
• Compressor drive warning
• Compressor run hours violation
• Condensate pump run hours 

violation

• Fan run hours violation
• Supply humidity sensor fault
• High suction pressure