Emerson Liebert iCOM Manual De Usuario

First, determine the days and time of day low noise is required. This will be set U806 through U808 

respectively. Second, determine the maximum fan speed setting during low noise operation.
In this example, the user does not want fan speed to exceed 35% max speed from 10 pm to 8 am 

weekdays.
1. Set U805 Mon-Fri columns to yes. 
2. Set U806 interval time from 22:00 to 8:00 
3. U807 = 0% / 100% 
4. U818 = 35% (Max fan speed low noise)
5. U819 = 100% (Max fan speed during normal operation)
The settings above result in a 35% maximum speed when the timer is active (i.e., at night) and will 

operate the fan between 0 and 100% maximum speed of when the timer is inactive (normal operation, 

during daytime).

The Expansion View menu applies to Liebert Thermal management units with Modbus Power Meter. 

This menu allows the user to see the connection status, voltage, operating current and power for up to 

six devices per unit.