Table 2 Setup Functions, Default Values And Ranges; Table 3 Unit Options; Table 4 Dip Switch Settings - Liebert CHALLENGER 3000 Operation And Maintenance Manual

Table 2 lists the setup functions, their factory default values and the allowable programming ranges.
Table 2 Setup functions, default values and ranges
Function
Cold Start Time Delay*
Restart Time Delay
Infrared Fill Rate
Chilled/Hot Water Coil Flush
C/F Degrees
*Factory set to 0 for water cooled, glycol, and GLYCOOL units.
Select Options
The following table lists options which should match the options installed with your unit and should
not need to be changed during normal operation.
Table 3 Unit options
Option Selection
1
Heating Yes or No
Humidifier Yes or No
Dehumidifier Yes or No
2
Hot Gas Reheat Yes or No
3
Heat Stages
1
Heating cannot be disabled on units with SCR reheats.
2
Hot gas reheat not available on units with SCR reheats.
3
Heat stages not selectable on units with SCR reheats.
Calibrate Sensors
The temperature and humidity sensors can be calibrated by selecting this menu item. "SENSOR"
shows the actual sensor reading or raw reading. "CALIBRATED" shows the sensor reading after the
calibration offset has been added. The temperature sensor can be calibrated ±5 degrees Fahrenheit
and the humidity sensor can be calibrated ±10%RH. When calibrating the humidity sensor, the value
shown will always be % RH, even though absolute humidity control may be selected. If absolute
humidity control is selected, the Normal Status Display will display the adjusted reading and may not
agree with the relative humidity reading displayed while in calibration.
Show DIP Switches
The DIP switch settings can be reviewed from the display panel. Changing the DIP switches requires
opening the upper panel for access to the DIP switches on the microprocessor control board.
NOTE
Power MUST be cycled OFF, then ON from the unit disconnect switch for the control
system to update the DIP switch settings (with the exception of switch 8).
Table 4 DIP switch settings
Switch #
1 No Part Coil
2 Electric/Hot Gas Reheat
3 All
4 No GLYCOOL
5 No Dual Cooling
6 Not Used
a
7 Tight Control
a
SCR reheats only (with special software); otherwise, not used.
The selections shown in Table 4 should match options installed on your unit and should not need to
change during normal operation. Switches 1 through 7 are self explanatory. DIP switch 8, not shown in the
table, enables the password feature when set to ON and disables the password feature when set to OFF.
Default
3 0 to 3 min (0 = no delay)
0.1 0 to 9.9 min (0 = manual restart)
150 110 to 500%
24 0 to 99 hrs (also Econ-O-Coil)
F C or F
2
Off
Part Coil/Chilled Water
Hot Water Reheat
Not Used
GLYCOOL
Dual Cooling
Not Used
Standard Control
8
Operation with Advanced Microprocessor Controls
Range
On