Guide Specifications
System Auto Restart - The auto restart feature will automatically restart the system after a power failure. Time delay is programmable.
Sequential Load Activation - On initial startup or restart after power failure, each operational load is sequenced with a minimum of one second delay to minimize total inrush current.
Hot Water Flush Cycles - Hot water reheat coils and
Predictive Humidity Control - calculates the moisture content in the room and prevents unneces- sary humidification and dehumidification cycles by responding to changes in dew point temperature.
The Liebert iCOM control shall be compatible with Liebert remote monitoring and control devices. Options are available for BMS interface via MODbus, Jbus, BACNet, Profibus and SNMP.
The Liebert iCOM control processor shall be microprocessor based with a 128x64 dot matrix graphic front monitor display and control keys for user inputs mounted in an ergonomic, aesthetically pleas- ing housing. The display & housing shall be viewable while the unit panels are open or closed. The controls shall be menu driven. The display shall be organized into three main sections: User Menus, Service Menus and Advanced Menus. The system shall display user menus for: active alarms, event log, graphic data, unit view/status overview (including the monitoring of room conditions, operational status in % of each function, date and time), total run hours, various sensors, display setup and ser- vice contacts. A password shall be required to make system changes within the service menus. Service menus shall include: setpoints, standby settings (lead/lag), timers/sleep mode, alarm setup, sensor calibration, maintenance/wellness settings, options setup, system/network setup, auxiliary boards and diagnostics/service mode. A password shall be required to access the advanced menus which include the factory settings and password menus.
The User Menus Shall be Defined as Follows
Active Alarms: Unit memory shall hold the 200 most recent alarms with time and date stamp for each alarm.
Event Log: Unit memory shall hold the 400 most recent events with ID number, time and date stamp for each event.
Graphic Data View: Eight graphic records shall be available: return air temperature, return air humidity, supply air temperature, outdoor temperature and four custom graphs.
Unit View: Status Overview: Simple or Graphical “Unit View” summary displays shall include tem- perature and humidity values, active functions (and percent of operation) and any alarms of the host unit.
Total Run Hours: Menu shall display accumulative component operating hours for major compo- nents including fan motor, humidifier and reheat.
Various Sensors: Menu shall allow setup and display of optional custom sensors. The control shall include four customer accessible analog inputs for sensors provided by others. The analog inputs shall accept a 4 to 20mA signal. The user shall be able to change the input to 0 to 5VDC or 0 to 10VDC if desired. The gains for each analog input shall be programmable from the front display. The analog inputs shall be able to be monitored from the front display.
Display Setup: Customer shall
•Group 1: English, French, Italian, Spanish, German
•Group 2: English, Russian, Greek
•Group 3: English, Japanese, Chinese, Arabic
•Service Contacts: Menu shall allow display of local service contact name and phone number.
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