Beretta NOVELLA, Руководство пользователя

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9
5 sHUT-DOWN
If the boiler is not going to be used for an
extended period of time, perform the following
operations.
- Switch the boiler on at the control panel
switch and check that the green power indi-
cator lights (fig. 5.1).
- Turn the mains power switch OFF (fig. 5.2).
- Close the boiler’s fuel cock and water circuit
cock (fig. 5.3).
b
Empty the boiler if there is any risk of
freezing
Fig. 5.1
Fig. 5.2
Fig. 5.3
Fig. 4.6
Fig. 4.7
Proceed as follows to reset the safety ther-
mostat.
- Wait for about 1 minute, then press the "bur-
ner reset" button (fig. 4.6).
- Wait for the burner to complete the entire
start-up cycle again, up to the ignition of
the flame.
The boiler will also shut down if the flue gas
thermostat trips. To reset the boiler in this
case, remove the hood and reset the flue gas
thermostat (fig. 4.7).
b
If the flue gas thermostat trips repea-
tedly, make sure that the flue gas pipes
are not blocked and that the flue is pro-
perly constructed.
b
Novella boilers are equipped with a fac-
tory-calibrated minimum pressure switch
for the gas supply. This shuts down the
boiler if the gas supply pressure is not
sufficient to ensure correct functioning.
Operation of this pressure switch is not
signalled.