Description of functioning
technical
29
- Step 5. External Probe. Display shows “SE” and “X” the selected curve. If SE=0
no external probe will be connected. In all the other cases it will be selected the best
option for the external probe. To store
value, use the comfort button to store the
selected value.
- Step 6. Post-Circulation time of the pump after the room thermostat cuts-off. Dis-
play shows “tPb” and the selected time. Default value is 1 minute and it can be chan-
ged with increase/decrease CH set point until 99 minutes. To store the selected value
use the comfort push button.
- Step 7. Pumb Cycling. Display shows “PC” and “On” or “OF” depending on the state
of the pump cycling function. Select the desired value using increase/decrease CH se
point buttons and store it with the comfort push button.
When the boiler is working in central heating function at a high temperature if a tap
is opened,
very hot water is produced at the initial flow to tap. To avoid this possibility
pump cycling function can be used. In that case, if the DHW is too high (DHW set
point + 20º C), the pump will make ON-OFF to try to regulate the water temperature.
When the temperature goes in normal values the pump will work normally.
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