Guide Specifications
17
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 Econ-O-Coils are periodically flushed to pre-
vent a buildup of contaminants.
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 pre-select the desired grouping of display languages at the time of
the order from the following choices:
• 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.
