5
Users easy guide
HOW TO SET THE WATER PRESSURE INTO THE SYSTEM
The water pressure into the system has to be checked periodically, in order to be sure of the boiler
correct operation. The manometer arrow has to be above 0.8/1 bar when the boiler is switched off
or in stand-by position. The boiler lock-out due to lack of water is displayed with the failure code
(low Pressure). In order to see this code, once the boiler is in lock-out and the symbol
appears, push the reset push-button.
In order to increase the water pressure into the system, open the filling valve (black) under the boiler;
when the pressure indicated on the manometer is between 0.8 and 1 bar, close the filling valve.
CLEANING
For the simple cleaning use a dry cloth. To remove hard blots, clean with a wet cloth and wipe with
a dry cloth.
DO NOT USE abrasive products.
ANTIFROST PROTECTION
The boiler is equipped with an antifrost system that operates au-
tomatically when the boiler water temperature decreases under
6°C: the burner and the pump are automatically put into operation
until the Central Heating system water temperature reaches
16°C.
This protection is active only if the boiler is electrically
feeded.
B
C
MAX
M
IN
MAX
MIN
HOW TO SWITCH-OFF THE BOILER
For short periods:
Rotate the knob “B” in position
For long periods:
Cut off the electrical and gas supply.
°C
Position during
water pressure
setting
Standard posi-
tion during
operation
Set the Central Heating and
Domestic Hot Water temperature
knobs to the symbol shown in the
figure.
