Full Product Manual

9.0 ACVMax Operation

664A0100 - Rev. A

9.3 Home Screen

The Home Screen presents status information in a very user friendly way so that the current

state of the boiler can be quickly accessed.

The screen backlight will illuminate when any button is pressed and remain illuminated for five

minutes. Press the UP or DOWN buttons to turn on the backlight while at the Home Screen

without making any changes.

The screen contrast can be adjusted at the Home Screen by pressing and holding the OK button

then pressing and holding the LEFT arrow along with the OK button. The contrast can then

be increased by pressing the UP button or decreased by pressing the DOWN button while hold-

ing in the OK button and LEFT arrow. All buttons must be released and the procedure per-

formed again to switch between increasing and decreasing contrast.