Line
ID
Parameter
Name
Range
Default
Setting
Description
operation. This is done by pressing te ON/OFF key at the unit to put the unit in a Display Off
condition
S176
BMS Off and
BDR
Off BackDraft
Off
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 te back draft damper
operation. This is done by sending a remote OFF signal from BMS to the unit to be remotely
OFF.
S177
LOC Off and
BDR
Off BackDraft
Off
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 te back draft damper
operation. This is done by sending local OFF signal to the unit by pressing the ON/OFF key.
S179
SCR Control
Type
None Tight
Standard
None
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 set to Tight, then one
compressor will be locked on and the reheats will modulate to offset the cooling capacity.
S180
Start 1st
Compressor at
-100 / +100 %
0%
Sets activation point of the first compressor. This parameter can be used when set to "Tight"
control with SCR.
S181
Stop 1st
Compressor at
-200 / +50 %
-200 %
Sets the deactivation point of the first compressor. This parameter can be used when set to
"Tight" control with SCR.
S182
1st Compressor
stop delay
0 - 30 min
20 min
Sets the delay when the stop compressor setpoint for the first compressor is met.
S183
Start 2nd
Compressor at
-100 / +100 %
100%
Sets activation point of the second compressor. This parameter can be used when set to
"Tight" control with SCR.
S184
Stop 2nd
Compressor ats
-200 / +50 %
0%
Sets the deactivation point of the second compressor. This parameter can be used when set
to Tight control with SCR.
S185
2nd Compressor
stop delay
0 - 30 min
0 min
Sets the delay when the stop compressor setpoint for the second compressor is met.
S186
Cycle Time
1.0 - 200.0
sec
1.0 sec
Set at the factory and should be changed only by an authorized Vertiv/Liebert technician.
S187
SCR Factor
1.0 - 10.0
1
Set at the factory and should be changed only by an authorized Vertiv/Liebert technician.
S188
Actual SCR
request
0 - 100 %
0%
Displays the actual SCR reheat being requested.
S190
Static Pressure
Fan Control
Disabled Limit
Control
Disabled
Enables/disables the use of static pressure control for fan modulation.
S191
Static Pressure
Setpoint inWC
0.010 - 1.003
inWC
0.020
inWC
Sets the static pressure setpoint to be used by the control to modulate the fan control.
Static Pressure
Setpoint Pa
2 - 250 Pa
5 Pa
S192
Static Pressure
Deadband in WC
0.010 - 1.003
inWC
0.020
inWC
Sets the static pressure deadband.
Static Pressure
Deadband Pa
2 - 250 Pa
5 Pa
S193
SP Pause Time
at deadband
minimum
0 (Disabled) -
180 sec
30 sec
Sets the minimum and maximum pause times when the static pressure crosses into the
deadband border. The fanspeed will stop increasing or decreasing based on the time set in
these parameters.
Table B.2 Service Menu Setpoints by Line ID (continued)
Vertiv™ | Liebert® iCOM™ Installer/User Guide
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Содержание Liebert iCOM DP400/500
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