AH-Elite Control Operating the system
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8.1 Basic operation
Modes of operation
Mode Explanation
Off mode When the control is in off mode, all control outputs are turned off.
The program mode can only be accessed from the off mode.
On mode When the control is in on mode, the system runs according to the
settings shown on the display. When the system is switched on,
the settings and parameters resume based on those last stored
when the unit was operating.
Automatic mode In automatic mode the cabin temperature is maintained within a
range of ±1.1 °C (2 °F) of the set point temperature by default.
This set point temperature differential can be reduced to
±0.55 °C (1 °F). If the ambient temperature rises above the set
point, the system starts cooling. If the ambient temperature drops
below the set point, the system starts heating. In order for the sys-
tem to switch from heating to cooling or from cooling to heating,
the temperature has to rise or fall by double the set point temper-
ature differential.
Cool mode If the ambient temperature rises above the set point, the system
starts cooling. There will be no heating while cool mode is active.
Heat mode If the ambient temperature drops below the set point, the system
starts heating. There will be no cooling while heat mode is active.
Moisture mode Every four hours the system starts the fan to circulate the air for
30 minutes. After that, a cooling cycle is started until the room
temperature is cooled down by 1.1 °C (2 °F) or until the cooling
cycle has run for one hour.
Starting with software revision B23, when in moisture mode, the
system will also prevent the temperature from falling below a min-
imum temperature. The default setting for this minimum tempera-
ture is 10 °C (50 °F). The minimum temperature can be changed
within the range of 4.4 °C to 23.9 °C (40 °F to 75 °F).
Program mode The operating parameters can be adjusted for an efficient opera-
tion of the system within any installation.
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