
Guide Specifications
2.5.1.4Alarms
The Liebert iCOM control shall activate an audible and visual alarm in event of any of the following conditions:
•High Temperature
•Low Temperature
•High Humidity
•Low Humidity
•Main Fan Overload (opt)
•Change Filters
•Loss of Air Flow
•Loss of Power
•Custom Alarm (#1 to #4)
Custom alarms are four customer accessible alarm inputs to be indicated on the front panel. Custom alarms can be identified with prepared (programmed) labels for the following frequently used inputs:
•Leak Under Floor
•Smoke Detected
•Loss of Water Flow
•Standby Unit On
User customized text can be entered for two of the four custom alarms.
Each alarm (unit and custom) can be separately enabled or disabled, selected to activate the common alarm, and programmed for a time delay of 0 to 255 seconds.
2.5.1.5Audible Alarm
The audible alarm shall annunciate any alarm that is enabled by the operator.
2.5.1.6Common Alarm
A programmable common alarm shall be provided to interface user selected alarms with a remote alarm device.
2.5.1.7Remote Monitoring
All alarms shall be communicated to the Liebert site monitoring system with the following informa- tion: date and time of occurrence, unit number and current temperature and humidity.
2.5.1.8Diagnostics
The control system and electronic circuitry shall be provided with
2.5.1.9Data Collection
The control system shall maintain accumulative operating hours of compressors, fan motor and Econ-
2.5.1.10 Communication
The Liebert iCOM control shall be compatible with Liebert remote monitoring and control devices.
2.6Chilled Water Control Valve
The water circuit shall include a
20