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1.10.
Operation of the boiler
1.10.1.
Power on
These instructions assume that the boiler has been installed by an authorized installer, the first ignition has been
carried out and the boiler has been set up for correct operation.
- Open the gas shut-off valve;
- set the switch on the electrical system upstream of the boiler to the ON position. The display lights up indicating the type of gas, the
power set and the function active at that moment (see Table 3 and Table 4);
- choose the boiler operating system by pressing the appropriate button " " (A fig. 1) OFF / SUMMER / WINTER (par. 1.2);
- set the desired temperature value for the heating water (see paragraph 1.10.2);
- set the desired temperature value for domestic hot water (see paragraph 1.10.3);
- set the desired room temperature value on the room thermostat inside the house (if present).
ATTENTION
After a long period of inactivity of the boiler, especially for boilers running on propane, it may be difficult to ignite. Therefore,
before lighting the boiler, turn on another gas appliance (for example a stove). Despite this, the boiler could block once or twice.
Then restore its operation by pressing the button " " (B fig. 1).
1.10.2. HEATING function
To adjust the heating water temperature, hold down the " " button (C fig. 1) for the cycle time and then press the "
" Or " "(E or F fig. 1).
The heating temperature adjustment range depends on the selected operating range:
- standard range: from 20 ° C to 80 ° C;
- reduced range: from 20 ° C to 47 ° C.
The selection of the operating range must be made by the installer or by an Authorized Service Center (see paragraph 3.2.11).
While setting the temperature, the heating symbol flashes on the screen (2 fig. 1) and the value that is being set for the heating water
temperature is indicated.
When the heating system requires heat, the heating symbol flashes on the display (2 fig. 1) and the instantaneous temperature of the
heating delivery water is displayed. The burner on symbol (1 fig. 1) appears only when the burner is operating.
The waiting time between one ignition and the next of the boiler, which serves to avoid frequent switching on and off of the boiler during
heating operation, is between 0 and 10 minutes (default 3), which can be modified with parameter P05.
1.10.3. SANITARY function
To adjust the temperature of the domestic hot water, hold down the " " button (D fig. 1) for the cycle time and then press the " " or
" " buttons (E or F fig. 1).
This function always takes precedence over the heating function.
The adjustment range of the domestic hot water temperature ranges from 10 ° C to 60 °C.
During the temperature setting, the heating symbol flashes on the screen (7 fig. 1) and the value that is being set for the domestic hot
water temperature is indicated.
When there is a request for domestic hot water, the heating symbol flashes on the display (7 fig. 1) and the instant water temperature is
displayed. The burner on symbol (1 fig. 1) appears only when the burner is operating.
1.10.4.
ANTIFREEZE function
The boiler is equipped with an antifreeze protection system active in the operating modes: OFF / SUMMER / WINTER /.
The antifreeze function protects only the boiler, not the entire heating system.
The heating system can also be effectively protected from freezing by using specific antifreeze products suitable for multi-metal systems.
Do not use antifreeze products for car engines and check the effectiveness of the product over time.
If it is not possible to ignite the burner due to lack of gas, the antifreeze functions are in any case activated by feeding the circulators.
