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Dometic Elite Control DX systems Manual

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Programming Elite Control Operations Manual
8 L-2230 ENGLISH
PROGRAMMING
PROGRAMMING PROCEDURE
1. Enter Program Mode. (See “Entering Program Mode” on page 7 for details.)
2. Press and release the Mode button to increment from one program parameter to the next. Press and release the Fan
button to decrement from one program parameter to the previous.
3. Use the Up and Down buttons to change the parameter’s setting.
4. Press the Power button to exit Program Mode and return the control to Off Mode. Or, to memorize the changes as the
new defaults, simultaneously press the Up and Down buttons (optional).
PROGRAMMABLE PARAMETERS
The system’s default parameters may be changed by the installing dealer or end user. Once new values are entered and
memorized, the factory defaults are overwritten and the new parameters become the default values. You can restore the original
factory default parameters manually. A summary of the parameters, the permitted values, and original factory default settings of
each are listed in Table 2, page 12.
P-1: High Fan Limit
Values for the upper fan-speed limit range from 56 to 95. Set a higher number to increase the fan speed or a lower number to
slow the fan speed.
P-2: Low Fan Limit
Values for the lower fan-speed limit range from 30 to 75. Set a higher number to increase the fan speed or a lower number to
slow the fan speed.
P-3: Compressor Staging Time Delay
The compressor staging delay is for installations where more than one system operates from the same power source. Setting
different staging delays allows compressors to start at different times when power is interrupted. Stage the units at least five
seconds apart. Minimum delay is 5 seconds and maximum is 135 seconds.
P-4: Temperature Calibration
This feature calibrates the ambient sensor within a range of ±10°F. Adjust this parameter to display the correct room-
temperature reading. Note that setting increments are in °F even when the control is set to display °C.
P-5: Failsafe Level
There are four failsafe levels. See “Failsafe and Fault-Handling Codes” on page 13 for details.
P-6: Low Voltage Monitor
(Available only in software revision A15 and newer.) The Elite has a built-in voltmeter circuit that monitors the AC input
voltage. Depending on whether the input power supply is 115VAC or 230VAC, this parameter can be set to “OFF”, to “95” (for
115VAC input power) or to “195” (for 230VAC input power). The factory default setting is OFF.
When this parameter is set to 95/195, the Elite checks the AC input voltage prior to each cooling or heating cycle and prevents
the compressor from starting if the voltage is less than 95VAC/195VAC. This provides extra protection for the compressor and
components within the system during low voltage (brownout) conditions. If this low voltage condition occurs, the fault code
“LAC” appears in the LED display. The fault will continue until the AC input voltage rises above 95VAC/195VAC, at which time
the LAC fault code clears automatically and the cooling or heating cycle will commence.
After the compressor is started, the low voltage monitor continues to check the AC input voltage. If it drops below the specified
setting and remains below for 5 minutes, the system will shut down and the “LAC” fault will be displayed. The system will remain
shut down until the voltage goes back above the specified setting. Once the voltage is restored, after the normal fault recovery
NOTE
If you have any reason to contact Dometic about the system or programming the control, you must have the software
identification number and air conditioning unit serial number available. The serial number may be found on the
dataplate label.
IMPORTANT
If you have any programming problems or confusion occurs, reset the Memorized Default Settings by entering
Program Mode and setting P-15 to “rSt”.
IMPORTANT
Once the high and low fan speed limits are set, the unit automatically readjusts the remaining speed to produce three
equally spaced fan speeds in both Automatic and Manual Fan Modes.
… 10 …


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