APC ACRP501, ACRP502, ACRP500, ACRP102 manual Chilled Water Only Alarms, Air-cooled Only Alarms

Alarms

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

•Cool Fail

•Rack inlet temperature violation

•Rack inlet temperature sensor fault

•Air filter clogged

•Air filter run hours exceeded

•Filter DP sensor failure

•Supply air sensor fault

•Return air sensor fault

•Supply air high temperature violation

•Return air high temperature violation

•Fan fault

•Fan run hours exceeded

•Water detection fault

•Condensate pump fault

•Condensate run hours exceeded

•Humidifier water conductivity high violation

•Humidifier fault tolerance exceeded

•Humidifier low water

•Humidifier excessive output reduction

•Humidifier drain fault

•Humidifier cylinder full

•Humidifier replace cylinder

•Humidifier RS485 communication fault

•Humidifier run hours violation

•Humidity high/low violation

•Supply humidity sensor fault

•Return humidity sensor fault

•Heater fault

•Heater run hours exceeded

•Heater interlock shutdown

•Group communication fault

•Internal communication fault

•A-link isolation relay fault

•External communication fault

•Input contact fault

•Invalid supply setpoint

•Idle mode active

Chilled Water Only Alarms

•Coil fluid valve actuator fault

•Fluid flow fault

•Entering fluid temperature high violation

•Entering fluid temperature sensor fault

•Leaving fluid temperature sensor fault

•Power source failure

•Fluid calibration

Air-cooled Only Alarms

•High discharge pressure

•Low suction pressure

•High suction pressure

•Compressor drive failure

•Compressor drive warning

•Compressor run hours violation

•Compressor drive RS485 communication fault

•Excessive compressor cycling

•Air flow decreased while compressor off

•Suction pressure sensor failure

•Discharge pressure sensor failure

•High pressure switch active

•Fan speed decreased to avoid high pressure (event only)

•Compressor speed decreased to avoid high pressure (event only)

•Compressor high pressure

•Oil return pump active