Marine Air Systems ECU-Maxx, Руководство по эксплуатации

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PAGE 10
ECU-Maxx VER:10a 12/1/97
ECU-M
AXX
O
PERATIONS
M
ANUAL
temperature differential. This speed reduction does not take place until the
temperature differential between the ambient temperature and the set point is
less than 6º (six degrees).
The maximum temperature differential may be increased from 6º to 12º by
changing the programmable parameter Automatic Fan Speed Spread. The
increase in the spread from 6º to 12º results in one fan speed reduction for every
2º decrease in temperature. When programmed in this mode, high fan speed is
used only in extremely hot conditions. Once the room is cooled down, condi-
tions requiring high fan speed are less likely to recur.
Setting Automatic Fan Mode
To place the fan in Automatic Mode, press and release the Fan Speed button
until the Auto indicator LED is turned on.
Setting Manual Fan Mode
To place the fan in Manual Mode, press and release the Fan Speed button.
This toggles the fan control from Automatic to Manual modes. Pressing and
holding the Fan Speed button will cause the fan speed lights to scroll 1 (one)
through 6 (six) and then back to 1. Releasing the Fan Speed button when one
of these fan speed lights are on will set the fan speed to that number.
Example: Releasing the button when the third LED is on will set a Manual fan
speed of 3 or medium.
Note: Selecting 1 through 6 results in a manual fan speed setting and lights the
manual lamp. The fan speed will not vary from this setting but will be corrected
for low line voltage.
Setting Fan Only Mode
With the ECU-Maxx in OFF Mode, press and release the Fan Speed button
to turn the fan on. Press and hold the Fan Speed Button to set the desired fan
speed as indicated on the Fan Speed Bar Graph. The ECU-Maxx will enter Fan
Only or Circulation Mode. Only the Fan Speed Bar Graph is illuminated during
Circulation Mode. Pressing the Fan Button cancels the Fan Only Mode and
returns the unit to the OFF Mode.
Note: Automatic fan speeds are not available in Fan Only Mode. Manual fan
speeds selected pertain to the Fan Only Mode and do not affect the pre-selected
fan speeds in Heat, Cool or Auto Modes.
Entering View Mode
Press and hold the Temp Select button for 2 (two) seconds, then release the
button. Use the Up and Down buttons to scroll through the various items that
may be viewed. A mnemonic code for the value being displayed is flashed along
with the value in view mode. The following items are available for display in
View Mode: