User manual

User Menu Parameters
105 Liebert
®
iCOM
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Figure 87 Setpoints screen, page 2
U113 2nd Temperature Setpoint—Allows for a dry contact through the customer inputs
connections. When a customer input connection is set to 2nd Temperature Setpoint and the input is
wired to that input is triggered, then the value set in this parameter sets the active temperature
setpoint. This parameter is adjustable from 41°F to 81°F. The factory default setting is 41°F.
If the unit is operating in De-Coupled mode, then this setpoint will only affect the temperature control
setpoint; it will not affect the fan control setpoint.
U114 Supply Temp Limit Setpoint—Selects the minimum discharge air temperature. When the
actual sensor reading approaches this parameter, the cooling capacity will be limited to avoid going
below the Supply Limit Temperature value. This parameter must be enabled in the Service /
Setpoints menu prior to setting a supply limit setpoint. This parameter is adjustable from 41°F to
81°F. The factory default setting is 41°F.
U116 BMS Backup Temp Setpoint—Selects a temperature setpoint that will be activated in the
event of a BMS time-out or a customer input signal. The BMS timer and/or the customer input must
be configured for this parameter to activate. This parameter is adjustable from 41-104°F (5-40°C).
The default setting from the factory is 73°F (23°C).
If the unit is operating in De-Coupled mode, then this setpoint will only affect the temperature control
setpoint; it will not affect the fan control setpoint.
This parameter is adjustable from 41-104°F (5-40°C). The factory default setting is 73°F (23°C).
U117 BMS Backup Fan Setpoint—Selects a temperature setpoint when backup fans will be
activated in the event of a BMS time-out or a customer input signal. The BMS timer and/or the
customer input must be configured for this parameter to activate.
If the unit is operating in De-Coupled mode, then this setpoint will only affect the temperature control
setpoint; it will not affect the fan control setpoint.
This parameter is adjustable from 41-104°F (5-40°C). The factory default setting is 73°F (23°C).
U119 Return Compensation Setpoint—Allows the return air sensor to be used even when in
Supply or Remote temperature control mode. Return Compensation modifies the temperature
setpoint to ensure that the return air temperature is kept above a specific temperature. If the return
compensation value is set to 80°F and the actual return temp falls to 75°F, then the controlling
temperature setpoint will be increased and will reflect in the “Control Temp Act.” This parameter is
adjustable from 41-104°F (5-40°C). The factory default setting is 73°F (23°C).