Vertiv Liebert iCOM - Page 96

Event Description
GC Low Cond Temp
C1 or C2
Low refrigerant liquid line temperature
GC 1 or 2 Fan 1
through 4 FAIL
The following events may result from a fan failure alarm. Refer to the specific fan manufacturer’s literature for troubleshooting
information.
• VSD high link current
• VSD drive error
• VSD earth to ground fault
• VSD electronics heat sink thermal overload
• VSD hall failure
• VSD IGBT failure
• VSD line fault
• VSD motor locked
• VSD motor thermal overload
• VSD phase failure
• VSD-specific uncategorized alarm detected
• VSD electronics high-temperature condition
• VSD high link voltage
• VSD low link voltage
• RS-485 communications failure
GC 1 or 2 TVSS Failure TVSS alarm
Table 4.3 Events Specific to Liebert® MC Condenser (continued)
Table 4.4 on page90 , describes events available with a Liebert® EconoPhase.
Event Description
PB1 BOARD FAIL
An unrecoverable failure of the pump control board has occurred. Pump shut down.
• Pump board must be rebooted to reset event.
PB1 CAVITATE
SHUTDOWN
Pump has cavitated and shut down.
• Event is reset when Liebert® iCOM™ requests a new startup.
PB1 IN PRES SENS FAIL
Inlet refrigerant pressure sensor failure. Pump shut down.
• Event is reset when condition clears.
PB1 IN TEMP SENS FAIL
Inlet refrigerant temperature sensor failure. Pump shut down.
• Event is reset when condition clears.
PB1 INV DATA
SHUTDOWN
Invalid data detected and pump shut down.
• Event is reset when Liebert® iCOM™ requests a new startup.
PB1 LO DIFF PRESSURE
Pump differential pressure fell below a lower threshold and pump shut down.
Event is reset when Liebert®iCOM™ requests a new startup.
PB1 LO OUTLET TEMP
Pump outlet-refrigerant temperature fell below a lower threshold and pump was shut down.
• Event is reset when Liebert® iCOM™ requests a new startup.
PB1 OUT PRES SEN FAIL
Outlet refrigerant pressure sensor failure. Pump shut down.
• Event is reset when condition clears.
Table 4.4 Events Specific to Liebert® EconoPhase
4 Managing Events: Alarms,WarningsandMessages
88
Vertiv™ Liebert® iCOM™Installer/User Guide