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3 SWITCHING OFF BOILER

3.1 TEMPORARY SWITCHING OFF

Turn the function selector (Fig. 3.1) to OFF for temporary

absence (weekend, short journeys, etc.).

While the electricity and fuel supply is still working, the boiler

is protected by systems:

- Circulator anti-blockage: the circulator starts every 24

hours of stand-by and after 3 hours from the last time the

sanitary system was used.

- Antifreeze: this will be started if the temperature of the

water in CH circuit falls to below 7°C, the circulator is timed

for a cycle of 15 min. every 2 hours and the circulator will

switch itself off when the temperature of the water in the

boiler exceeds 10°C. The burner will ignite at the lowest

heating when the temperature of the water primary drops to

below 5°C until the temperature of the water reaches 30°C.

3.2 SWITCHING OFF FOR LONG PERIODS

IThe following operations should be done for CIAO boilers that

are not going to be used for long periods:

- Turn the function selector (Fig. 3.1) to OFF;

- turn the system’s main switch to “OFF” and check that the

green LED has gone off;

- turn off the fuel and water taps of the heating and sanitary

system.

Fig. 3.1

Fig. 3.2

In this case the antifreeze and antiblockage systems are

disconnected.

Empty the heating and sanitary systems if there is any

danger of freezing.

Beretta Ciao C.A.I User Manual

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