Emerson Liebert iCOM Manual De Usuario

S175 Display Off and BDR—When the back draft damper is enabled, different modes can activate 

this feature. Remote Off, Display Off, BMS Off and Local Off can all be set to activate the back draft 

damper operation. This is done pressing the I/O key at the unit to put the unit in a display Off 

condition.
S176 BMS Off and BDR—When the back draft damper is enabled, different modes can activate this 

feature. Remote Off, Display Off, BMS Off and Local Off can all be set to activate the back draft 

damper operation. This is done by sending a remote Off signal from the BMS to the unit to be 

remotely Off.
S177 LOC Off and BDR—When the back-draft damper is enabled, different modes can activate this 

feature. Remote Off, Display Off, BMS Off and Local Off can all be set to activate the back draft 

damper operation. This is done by sending a local Off signal from the unit by pressing I/O key.

S179 SCR Control Type—Sets the control type for the SCR reheats. If set to “Standard,” then the 

reheats will modulate when the temperature is below setpoint based on the control settings. If this 

parameter is set to “Tight” control, then one compressor will be locked on and the reheats will 

modulate to offset the cooling capacity. To prevent component fighting, Tight control cannot be used 

with modulated components such as chilled water valves and digital scroll compressors. 
S180 Start 1st Compressor At—Sets the activation point of the compressor. This parameter can be 

used when set to “Tight” control.
S181 Stop 1st Compressor At—Sets the deactivation point of the compressor. This parameter can 

be used when set to “Tight” control.
S182 1st Compressor Stop Delay—Sets the delay when the stop compressor setpoint for the first 

compressor is met.
S183 Start 2nd Compressor At—Sets the activation point of the second compressor. This 

parameter can be used when set to “Tight” control.
S184 Stop 2nd Compressor At—Sets the deactivation point of the second compressor. This 

parameter can be used when set to “Tight” control.
S185 2nd Compressor Stop Delay—Sets the delay when the stop compressor setpoint for the 

second compressor is met.
S186 Cycle Time—Set at the factory and should be changed only by an authorized Emerson 

representative.
S187 SCR Factor—Set at the factory and should be changed only by an authorized Emerson 

representative.
S188 Actual SCR Request—Displays the actual SCR reheat being requested.