Emerson Liebert iCOM Manual De Usuario

S110 Supply Limit Enabled/Setpoint—Chilled water units may be set up with the supply air 

sensor to maintain a minimum air temperature under a raised floor to help prevent condensation. In 

order to avoid supply temperatures that are too low, the Supply Limit can influence the opening of 

three-point or analog actuators or the output of analog valves. The control compares the deviation 

from the return air setpoint and the supply limit setpoint, and calculates the output to the actuator 

from the smaller deviation.
S111 Heater Deadband—Changes the amount of deviation below the temperature setpoint that the 

heaters will cycle On and Off. This value is added to the heating side of the normal temperature 

deadband.

S113 Enable Temp Compensation—Temperature compensation allows for a second or third sensor 

to be used that will influence the unit’s cooling or heating. Three selectable values are available: 

Return, Supply, and Ret + Sup (Return + Supply). See Temperature Compensation on page 60 

for more information on temperature compensation. 
S114 Return Compensation Setpoint—The temperature setpoint where compensation begins to 

operate by increasing the supply air setpoint.
S115 Return Compensation Band/Value—The return compensation band / value will determine 

how quickly the cooling capacity is adjusted as the return temperature drops below the return 

compensation setpoint.
S116 Supply Compensation Value—The Supply Compensation value determines how much the 

supply temperature setpoint will be reduced when the units fan speed is at 100% and the cold aisle is 

not able to maintain temperature setpoint.
Any modifications to the supply temperature setpoint will be shown at the temperature setpoint on 

parameter S103 as the actual active control point.
S118 Comp Cap Filter at 0-100%—Controls the rate of change during comp load changes to avoid 

overshoots. The filter value depends on the current control deviation from the setpoint.
On the setpoint (at 0%), it’s typically set lower (slow), and at the end of the P-band (at 100%) it’s 

typically set higher (faster). The value is given in % control output change per second.
S119 Capacity Transition Filter—This parameter should only be adjusted by a factory-service 

trained technician. The transition capacity filter controls how quickly the capacity changes between 

different modes of operation.
This filter helps with the transition to avoid overshoot.