Marathon Monitors Inc.

Automatic mode

You will normally work with the controller in automatic mode. If the MAN light is on, press the AUTO/MAN button to select automatic mode. The AUTO light comes on

Power on

x 2

The Home display

Check that the AUTO light is on.

The upper readout shows the measured temperature.

The lower readout shows the setpoint. To adjust the setpoint up or down, press or .

(Note: If Setpoint Rate Limit has been enabled, then the lower readout will show

the active setpoint. If or is pressed, it will change to show and allow adjustment of, the target setpoint.)

Press once

Display units

A single press of will flash the display units for 0.5 seconds, after which you will be returned to the Home display. Flashing of the display units may have been disabled in configuration in which case a single press will take you straight to the display shown below.

Press twice

% Output power demand

The % output power demand is displayed in the lower readout. This is a read-only value. You cannot adjust it.

Press and together to return to the Home display.

Pressing from the Output Power display may access further parameters. These may be in this scroll list if the ‘Promote’ feature has been used (see Chapter 3, Access Level).

When you reach the end of this scroll list, pressing will return you to the Home display.

AACC 2000 Carbon

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Nov. 1, 1997

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Marathon Computer AACC 2000 manual Automatic mode, Home display, Display units, Output power demand