Technical Specifications

Liebert iCOM
130
• COMP 1B SHORT CYCLE—Activated when Compressor 1B turns On, Off, then back On, 10
times within 1 hour. The alarm will reset itself when the control turns Compressor 1B On, then
Off fewer than 10 times within 1 hour of operating time for 1.5 hours.
• COMP 2A SHORT CYCLE—Activated when Compressor 2A turns On, Off, then back On, five
times within 10 minutes or 10 times within 1 hour. The alarm will reset itself when the control
turns Compressor 2A On, then Off fewer than 10 times within 1 hour of operating time for 1.5
hours.
• COMP 2B SHORT CYCLE—Activated when Compressor 2B turns On, Off, then back On, five
times within 10 minutes or 10 times within 1 hour. The alarm will reset itself when the control
turns Compressor 2B On, then Off fewer than 10 times within 1 hour of operating time for 1.5
hours.
• COMPRESSOR(S) LOCKOUT—Activated when Customer Input 1 is configured for “Comp
Lock PD” and 24VAC is applied to the input. This alarm is reset when the 24VAC is removed.
• CONDENSATION DETECTED (optional)—Activated when water is detected at a cooling
module. A 24VAC signal is applied to the condensation input on the control board using a twisted
pair of wires or the alarm is sent via CANbus communication. When this alarm is active, the
control will raise its refrigerant control point by 4°F (2.2°C). This alarm will reset when the
alarms is acknowledged and the signal stops being sent from CANbus or condensation input. The
alarm can also be reset by cycling the power. The main power must be cycled to remove the 4°F
(2.2°C) offset.
• CUSTOMER INPUT 1—Activated when a 24VAC signal is applied to the customer alarm input
on the control board. This alarm will reset when the 24VAC signal stops being sent from the
customer alarm input. WATER UNDER FLOOR, SMOKE DETECTED, CALL SERVICE and
COMP LOCK PD are possible designations for this alarm; they are set with the Unit Code.
• FAN FAILURE (optional)—Activated when a 24VAC signal is applied to the fan failure input on
the control board using a twisted pair of wires or the alarm is sent via CANbus communication.
This alarm will reset when the alarms is acknowledged and the signal stops being sent from
CANbus or fan failure input. The alarm can also be reset by cycling the power.
• HIGH DEW POINT—Activates when the calculated dew point at either Sensor A or B exceeds
the user-specified alaram setpoint. The alarm will reset when the calculated room dew point from
both Sensor A and Sensor B is 2°F (1.1°C) below the setpoint and the alarm has been
acknowledged.
• HIGH REFRIGERANT TEMP—Activated when the refrigerant temperature sensor reads the
refrigerant temperature above the user-specified alarm setpoint. This alarm will reset when the
reading from the refrigerant temperature sensor drops 2°F (1.1°C) below the user-specified
setpoint and the alarm has been acknowledged.
• HIGH TEMP SENSOR A—Activated when the reading from Sensor A is above the user-
specified alarm setpoint. The alarm will reset when the reading from Sensor A drops 2°F (1.1°C)
below the setpoint and the alarm has been acknowledged.
• HIGH TEMP SENSOR B—Activated when the reading from Sensor B is above the user-
specified alarm setpoint. The alarm will reset when the reading from Sensor B drops 2°F (1.1°C)
below the setpoint and the alarm has been acknowledged.
• LOSS OF FLOW PUMP 1—Activated when Pump 1 is commanded to run and the differential
pressure switch does not sense differential pressure (set at 6 psi; 41kPa; 0.41 bars). After
attempting to start Pump 1 three times, the Liebert XDC will automatically switch to the other
pump to establish flow. This alarm will reset when flow has been established on Pump 1 and the
alarm has been acknowledged.
• LOSS OF FLOW PUMP 2—Activated when Pump 2 is commanded to run and the differential
pressure switch does not sense differential pressure (set at 6 psi; 41kPa; 0.41 bars). After
attempting to start Pump 2 three times, the Liebert XDC will automatically switch to the other
pump to establish flow. This alarm will reset when flow has been established on Pump 2 and the
alarm has been acknowledged.
• LOW MEMORY—Activated when the control board is low in memory resources. This alarm rests
automatically as soon as memory consumption falls below the threshold.