Description of functioning
technical
37
- Step 5. External Probe. Display shows “SE” and
“X” the selected curve alternatively. 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
the value, use the main
board push button
- Step 6. Post-Circulation time of the pump after room thermostat cut-off
Display shows “tP” and the selected time
(when right knob is in summer position). Default
value is 1 minute and it can be changed with right
knob until 85 minutes. To store
the selected value
use the main board push button.
- Step 7. Pump Cycling. Display shows alterna-
tively “PC” and “On” or “OF” (when right knob is
in summer position) depending on the state of the
pump cycling function. Select the desired value
using right knob (CH) and store it with the main
board push button. When the boiler is working in
central heating
mode at high temperature if a
hot tap is opened, the initial flow at the tap will
very hot To reduce the initial temperature at the tap the pump will cycle to decrease
the heat transfer to the DHW. In the case, if the DHW temp 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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