Service Menu Parameters
90
Figure 82 Options setup parameters - Page 1
Compressor Sequence
—This parameter changes the lead compressor when cooling is activated.
This parameter can also be set to “AUTO” mode which will activate the compressor with the lowest
run hours first.
Low Pressure Alarm Delay
—This parameter sets the amount of time that the unit will ignore a
low pressure condition. In the past this parameter has also been referred to as a Winter Start Time.
This parameter can be set between 0 to 5 minutes.
Electric Stages
—This parameter shows the number of electric stages that can be activated during a
call for reheat. This parameter is setup from the factory based on the model number of the unit.
Electrical Heater Capacity
—(HPM only) This parameter shows the electrical heater capacity for
units with both electric and hot water or hot gas reheat. Reduced capacity indicates HW/HG Stage 1,
electric Stage 2; full capacity indicates HW/HG plus low capacity electric Stage 1, high capacity elec-
tric Stage 2.
Hot Water Heat On/Off
—This parameter is selectable between “Yes and No”. If Yes is selected the
unit is equipped with a hot water heater.
LWD Connected
—This parameter is set to “Yes” if a liquid detection device is connected to the Lie-
bert iCOM control.
Valve Control
—This parameter selects between two different methods to keep track of valve posi-
tion when a stem / 3P valve is installed in the unit. This setting does not affect motorized ball valves.
If “Time” is selected then the valve position is tracked by an internal timer in the control to determine
the position or opening of the valve. If “Feedback” is selected then analog input #1 interprets the sig-
nal from the valve to determine its position. Using the “Feedback” setting requires the setup proce-
dure discussed earlier in this manual.
3P Actuator Runtime
—If Valve Control is selected for “Time” then this parameter sets the travel
time of the valve to determine the full open and closed position of the valve. This setting is set from
the factory based on the valves manufacturer specifications.
3P Actuator Direction
—This parameter selects if the valve is a “Direct” or “Reverse” acting valve.
OPTIONS SETUP (page 1 of 3)
to change parameter
to confirm
to select parameter
for next/previous unit
then
PASSWORD (Actual Level 3)
????
Compressor Sequence
Low Pressure Alarm Delay
min
Electric Stages
3
Electrical Heaters Capacity
Hot Water Heat On/Off
No
Total Heat Stages
3
LWD Connected
No
Valve Control
Feedback
2P Actuator Runtime
165sec
3P Actuator Direction
Direct
UNIT 01
S401
S402
S403
S404
S405
S406
S407
S408
S409
S410
S411
Summary of Contents for Liebert Challenger 3000
Page 2: ......
