Storage Tank Temperature Adjustment; Heating Modulation; Frost Protection Function; Circulating Pump Anti-Blocking Function - Ferroli TOR Instruction For Installation And Maintenance

1.2.4 Storage tank temperature adjustment

This function is available only with P05 = 1
Use the buttons (ref. 5 and 6 of fig. 1 on page 6) to adjust the storage tank water temperature.
The setting range is 30 - 60 °C and the default value is 60 °C.
To disable the DHW function, change the set point, bringing it below the minimum temperature until the symbol
appears.

1.2.5 Heating modulation

Each time heating is turned on, the elements are activated in sequence until the desired temperature is reached.
The minimum time between one activation and the next is 10 seconds and the sequence starts from the element that has
accumulated fewer hours of operation.
1.2.5.1 Comfort Mode / Balance (P10)
Using Parameter P10 it is possible to select the Off mode during heating operation.
P10 = 0 Comfort
The heating elements turn off when the heating water temperature reaches the "Set Point + 5 °C".
The heating elements turn on again when the temperature goes below the "Set point - P02" and a wait time of at least 3
minutes has elapsed to prevent frequent activations.
P10 = 1 Balance
The heating elements turn off under the following conditions
- heating water temperature reaches the "Set Point + 5 °C".
- heating water temperature exceeds the "Set Point + 2°C" for 5 minutes
The heating elements turn on again when the temperature goes below the "Set point - P02" and a wait time of at least 3
minutes has elapsed to prevent frequent activations.

1.2.6 Frost protection function

This boiler is equipped with different types of frost protection depending on the temperature.
1.2.6.1 Level I frost protection
If the heating temperature goes below 8 °C, the circulating pump will activate until 10 °C is reached. During this phase,
the display will show "Fd".
1.2.6.2 Level II frost protection
If the heating temperature goes below 5 °C, in addition to the circulating pump the heating elements will also start working.
The display will show the heating temperature.
The heating elements will turn off when the temperature reaches 30 °C. The circulating pump will remain on for the post-
circulation time (parameter P01).
1.2.6.3 External storage tank frost protection (optional)
Note: The external storage tank frost protection is active if parameter P05 is set to 1.
When the storage tank temperature is below 5 °C, the three-way valve switches to DHW, activates the circulating pump
and the heating elements.
When the storage tank temperature exceeds 20 °C, the frost protection function stops.
If a fault in the storage tank temperature sensor is detected, only the circulating pump will be active.

1.2.7 Circulating pump anti-blocking function

To prevent the circulating pump blocking, it will be activated automatically, for about 30 seconds, every 21 hours of
inactivity. At the same time, the three-way valve will be switched to DHW.

1.2.8 Display of heating elements

To view the status of the currently active heating elements, press the button
of the display flashes. The number of active elements will appear (example with 4 active elements
EN
8
cod. 3542B750 - Rev 09 - 02/2024
for about 2 seconds, while the central dot
).
TOR