Emerson Liebert iCOM Manual De Usuario
Operation
Liebert
®
iCOM
®
42
3.5.1 Liebert Air Economizer
™
System Overview
The objective of the Liebert Air Economizer is to expel warm air from the conditioned space and bring
in cooler air through the Liebert Air Economizer. This function is monitored continuously by the
Liebert iCOM.
Figure 36 shows an example of the air flow pattern of a Liebert Air Economizer system. The indoor
Figure 36 shows an example of the air flow pattern of a Liebert Air Economizer system. The indoor
sensor must be positioned where there is airflow when the system is in full economizer operation and
when the system is operating in non-economizer mode.
If the indoor damper position has been changed to 0% from the factory default of 15%, then the indoor
If the indoor damper position has been changed to 0% from the factory default of 15%, then the indoor
sensor must be moved, preferably to the hot aisle.
Figure 36 Air flow pattern of a Liebert Air Economizer system-regular ceiling
Mixing
Box
Outdoor
Temperature /Humidity
Sensor
Outdoor
Damper
Damper
Indoor
Temperature/Humidity
Sensor
Roof
CRAC
Supply Sensor
5-15ft. (1.5 to 4.5m)
from cooling unit
Pressure Relief
Vent
(Not by Emerson)
Return
Room Air
Equipment
Rack
Cold
Aisle
Hot
Aisle
Hot
Aisle
Front
of Unit
Liebert Air
Economizer
Equipment
Rack
Liebert iCOM
Indoor
Damper
Outside Air
Duct