Robur Direct Digital Controller, Installation, Use And Programming Manual

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Direct Digital Controller
Direct Digital Controller fw 4.013 – Ed. 01/2013
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2- The room thermostat is active based on the climatic curve and external temperature
probe (WCmp mode or equivalent equivalent, CUSTOM mode and “WCmp” function
active) and the climatic curve function is enabled in the user level menu “
Enabling of
climatic curve ” (see paragraph 3.4.1.1.1.2).
In this case, by pressing the knob repeatedly with the cursor positioned on the
chronothermostat activation/deactivation button, the symbol assumes the different
aspects in sequence to which the following modes correspond:
•
the room temperature set-point is that active on the bases of the
programming set on the chronothermostat.
•
o : the room temperature set-point is always T3 (maximum level of the
heating or cooling service)
•
the room temperature set-point is always T2 (average level of the heating or
cooling service)
•
o : the room temperature set-point is always T1 (minimum level of the
heating or cooling service)
NOTE : continuing to press the knob, the sequence is repeated.
Note that the climatic curve function remains active in all modes stated above; therefore in
this case the system
ALWAYS regulates the internal room temperature, based on the
climatic curve. The change affects only the choice of the value of the room temperature
set-point value.
If neither of the two cases stated above exists, the button takes on the aspect to
indicate that it is disabled. The system does not regulate the internal room temperature.
COOLING/HEATING switch button ( button present for 2 line hot/cold plants only );
ƒ
To change to Cooling turn the knob to position the cursor on then press the
knob. The button will appear thus , indicating that the plant will be enabled for
cooling operation.
ƒ
To change to Heating mode turn the knob to position the cursor on then press
the knob. The button will appear thus , indicating that the plant will be enabled for
heating operation.
Heating/cooling priority selection button for GAHP-GS/WS module ( button only present
on 4-line hot/cold plants with units of the GAHP-GS/WS type );
ƒ
To give priority to Cooling turn the knob and position the cursor on then press
the knob. The button will appear thus , indicating that priority will be given to
cooling operation for the GAHP-GS/WS units.
ƒ
To give priority to Heating turn the knob to position the cursor on then press the
knob. The button will appear thus , indicating that priority will be given to heating
operation for the GAHP-GS/WS Units.
For further information on the use of this button, consult the operation and maintenance
manual of the GAHP-GS/WS unit.
According to the configuration carried out, some of the buttons may be disabled. (status always ON). For
further details, consult Paragraph
"On/off command configuration" on page 103.
NOTE