Technical Specifications

Liebert iCOM
132
• TANDEM BANK 1 LP—Activated when the low-pressure switch for Tandem Compressor
Bank 1 doesn't send the proper signal during normal operation, or during pump-down. This alarm
will reset when the main power is cycled or the Tandem Bank 1 LP Code variable in the Service
Diagnostics menu is reset to 0.
• TANDEM BANK 2 LP—Activated when the low-pressure switch for Tandem Compressor
Bank 2 doesn't send the proper signal during normal operation, or during pump-down. This alarm
will reset when the main power is cycled or the Tandem Bank 2 LP Code variable in the Service
Diagnostics menu is reset to 0.
• TANDEM BANK 1 PD—Activated when Tandem Compressor Bank 1 suction pressure cannot
be pumped down below the threshold during compressor shutdown. This alarm will reset when
the main power is cycled or the Tandem Bank 1 PD Alarm Code variable in the Service
Diagnostics menu is reset to 0.
• TANDEM BANK 2 PD—Activated when Tandem Compressor Bank 2 suction pressure cannot be
pumped down below the threshold during compressor shutdown. This alarm will reset when the
main power is cycled or the Tandem Bank 2 PD Alarm Code variable in the Service Diagnostics
menu is reset to 0.
• UNIT CODE MISSING—Activated when a valid unit code has not been entered and saved. To
reset, enter valid unit code, save and execute.
• WATER UNDER FLOOR—Activated when Customer Input 1 is configured for “Water Alarm”
and 24VAC is applied to the input. This alarm is reset when the 24VAC is removed.
7.5 Warning Descriptions
• COMPRESSOR 1A HRS EXCEED—Activated when the Compressor 1A Actual Hours exceeds
the user-specified limit. To reset, Actual Hours must be reset to 0.
• COMPRESSOR 1B HRS EXCEED—Activated when the Compressor 1B Actual Hours exceeds
the user-specified limit. To reset, Actual Hours must be reset to 0.
• COMPRESSOR 2A HRS EXCEED—Activated when the Compressor 2A Actual Hours exceeds
the user-specified limit. To reset, Actual Hours must be reset to 0.
• COMPRESSOR 2B HRS EXCEED—Activated when the Compressor 2B Actual Hours exceeds
the user-specified limit. To reset, Actual Hours must be reset to 0.
• PUMP 1 HRS EXCEED—Activated when the Pump 1 Actual Hours exceeds the user-specified
limit. To reset, Actual Hours must be reset to 0.
• PUMP 2 HRS EXCEED—Activated when the Pump 2 Actual Hours exceeds the user-specified
limit. To reset, Actual Hours must be reset to 0.
• LOSS OF POWER—Activated when the unit is On and operational and 24VAC power to the
control is lost. This alarm will be emitted when power is restored to the control. The Liebert XDC
will restart at a user-defined time delay after power is restored. Once activated, the alarm will
remain activated for 30 minutes.