Marine Air Systems ECU-Maxx, Operation Manual

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PAGE 12
ECU-Maxx VER:10a 12/1/97
ECU-M
AXX
O
PERATIONS
M
ANUAL
Using Program Mode
The program parameters are displayed by pressing the Mode button or the
Temp select button. Program parameters are designated by "P-nn" in the
display, where "nn" is a number from 1 to 34. Pressing the Mode button
repeatedly will cause the display to scroll up through all the program parameters.
Pressing the Temp Select button will cause the display to scroll down through
all the program parameters.
The Up and Down buttons are used to select the data or set the desired limits
for the parameter being programmed.
Select Option ON or Option OFF using the Up and Down buttons. This
method is followed throughout Program Mode; however, special instructions
are included in the section Programmable Parameters for individual functions
that require them.
Exiting Program Mode
There are two methods to exit program mode. Press the Power button and the
ECU-Maxx returns to the OFF Mode. Not pressing any button for 60 (sixty)
seconds will cause the control unit to exit Program Mode.
Software Identification
The software version is identified for 1 (one) second prior to the exit from
Program Mode. The software number will appear in the display for one second,
then the display turns off.
P
ROGRAMMABLE
P
ARAMETERS
The 34 programmable parameters along with their Factory Default Settings are listed in at the end of this
section. The following are definitions and operating theory for all the programmable functions of the ECU-
Maxx.
P-1: Moisture Control Mode Dehumidification Level
Moisture Control Mode contains a dehumidification cycle to help prevent mildew and conserve energy.
Example of Dehumidification Level 1: Every 4 hours, the fan is started and air is circulated for 30 minutes. The
air temperature is sampled and re-
membered. Cooling is started and
will continue until the temperature is
lowered 2º. Four hours later, the cycle
starts over. However, this cycle does
not conflict with the minimum or
maximum temperature settings.
The Humidity cycle will not start
until the maximum or minimum tem-
perature requirements have been sat-
isfied. Dehumidification can be programmed at one of three levels, as shown in Table 2, above. The factory
default setting for this function is Level 1 (2°).
ECU-Maxx
Program Setting
Reduction in Temp Before
Cooling is Stopped
1 2°F
2 4°F
3 6°F