User`s manual

13
The comfort mode is a special
operating state, because the water
contained in the secondary exchanger
and in the primary exchanger is kept in
a preheated condition, thereby allowing
a quicker delivery of domestic water
when required. The latter is therefore
the more convenient choice.
TURNING OFF CENTRAL HEATING
To turn off the central heating, rotate
the “C” knob to the “0” position.
The boiler will
stay in summer
mode, just
providing
domestic water
on request.
TURNING OFF THE BOILER
To turn the boiler off, rotate the selector
knob “A” to the “0” position (OFF); the
respective green L.E.D. “D” will go off.
Close the gas cock located under the
boiler and turn the electricity supply
switch (located outside the boiler) to
the OFF position.
C
A
D
UT011Ae
UT011Ab UT011Aa