Emerson Liebert iCOM Manual De Usuario

The Sleep Mode menu contains parameters to set back or allow unit to turn Off during non-peak 

hours. Sleep Mode may be interrupted if the temperature rises above threshold set in the Set Alarms 

menu.

U609 Timer Reset—Defines when the unit changes back to Sleep Mode after having crossed the 

high or low temp threshold (Deadband setting on line U611). These values are available:

• NO: The user can use this setting to temporary interrupt a sleep mode interval while sleep 

mode is active. If the parameter is left at No, sleep mode will not resume until the next sleep 

mode interval occurs or the user sets the parameter back to Yes or Auto.

• YES: If the unit is brought out of sleep mode by a hi or low temperature event, the unit 

continue to operate and will go to Sleep Mode again at the next coming Interval.

• Auto: The unit will automatically return to sleep mode if interrupted by a high- or 

low-temperature event. The temperature must be within 50% of the temperature dead band 

before the unit will resume sleep mode.

U610 Timer Mode Type—Defines what will happen when sleep mode is active. Two options are 

available:

• System Off: the unit remains Off, no fans cooling etc. High- and low-temperature events will 

not bring the unit out of sleep mode.

• Deadband: Provides the user with a selectable deadband range to bring a unit out of sleep 

mode if the temperature in the space gets too high or low. The deadband is defined on line 

U611.This setting also allows the unit to come out of sleep mode if a high- or low-temperature 

alarm occurs. Temperature alarm thresholds are (internally) shifted lower / higher by the half 

value U611.

U611 Dead Band—Defines when a unit will come out of sleep mode when U610 is set for Dead 

Band. This deadband is added to the temperature dead band in Service Menu, Setpoints. Once the 

control temperature increases above Temperature Setpoint + (1/2 [Temperature Dead Band]) + 

U611, the unit will turn On. The unit will remain operating until the temperature is within 1/2 

(Temperature Dead Band).