Figure 34 Return Compensation Setpoint Deviation; Figure 35 Supply Compensation - Emerson Liebert iCOM Manual
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The return compensation setpoint will proportionally increase as the return temperature deviates
below S114 "Return Compensation Setpoint." The compensation proportional band is set on line S115.
The compensating proportional band defines the maximum value the air temperature setpoint will
increase during return compensation. See Figure 33.
Figure 34 Return Compensation setpoint deviation
Supply Compensation: Supply temperature compensation allows units to automatically adjust the
supply air temperature setpoint when the unit has reached its maximum airflow of 100% and the cold
aisle temperature remains above the cold aisle setpoint. In this situation, the temperature
compensation feature will proportionally decrease the supply air setpoint until the Inlet rack
temperature reaches the setpoint.
Figure 35 Supply compensation
Fan
Speed
100%
®
®
Liebert
iCOM
for Liebert DSE
™
46
Operation
Return
Compensation
Proportional
Band
Return
Compensation
Maximum
Value
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