Emerson Liebert iCOM Manual De Usuario

Setpoints allow the user to view, change and set all temperature- and humidity-related parameters.

S102 Temperature Control Sensor—Selects which sensor will be controlling the cooling capacity. 

Cooling capacity is either the Chilled Water Valve, Compressor, FreeCooling Valve or Air 

Economizer. Unloading type compressors can be set to any sensor type, however fixed style 

compressors can only be set to Return or Remote control type l. This parameter can only be changed 

in the service menu. The range is Supply, Return or Remote Sensor. The factory default is Return.
S103 Temperature Setpoint Act/Set—Selects a return temperature that the cooling unit will 

maintain by applying cooling and or reheats. This is adjustable from 41-104°F (5-40°C). The factory 

default is 73°F (22.7°C).
There are two values in this field. The Temp Set value is the temperature that has been set by the 

user to control the temp. The Temp Act value is a read only value that indicates if another routine, 

like supply compensation has internally modified the Temp controlling value. If compensation has not 

been activated, then the ACT and SET will always match. This parameter is adjustable from 

41-104°F (5-40°C). The default set value for Supply is 64°F. The default set value for Return and 

Remote is 73°F.
S104 Temperature Control Type—Sets the type of control to be followed Proportional, PI or 

Intelligent.
S106 Temperature Proportional /Integral—The left hand value adjusts the activation points of 

compressors or rate of change based on the actual sensor values deviation from setpoint. The smaller 

this number the faster the compressors and valve(s) will increase capacity. Too small of a number 

may cause the unit to short cycle the compressors or excessively reposition the valve. The right hand 

value adjusts the capacity of the unit based on time away from setpoint so that accurate temperature 

control can be maintained. The proportional and integral work together to maintain setpoint. Large 

P-Band with Small I-Time is typical when controlling to supply air.
S108 AutoSet Enable—Sets the temperature and humidity proportional bands automatically based 

on the type of unit when this parameter is set to YES and if teamwork modes are selected. To change 

the proportional bands, this parameter must be set to NO. If supply or remote sensors are used, then 

this value is always set to NO.
S109 Temperature Deadband—Avoids overshooting or undershooting the setpoint and cycling 

between the reheats and cooling. The value entered in this field will be split in half by the 

temperature setpoint. Example: If the temperature setpoint is 70°F (21.1°C) and a 4°F (2.2°C) 

deadband is set, then no cooling will be activated until 72°F (22.2°C) and no heating will be activated 

until 68°F (20°C) is reached.