
20
Värmebaronen Vedolux -350, -450 and -650
Before firing the boiler for the first time:
- All safety requirements must have been
met.
- An electrician must have confirmed that
the boiler is safe and operating properly.
- A plumbing and heating installation
engineer must have confirmed that the
boiler is safe and operating properly.
- The O
2
probe must have been calibrated
and an aggregate test and safety test
carried out.
See the ‘Aggregate test’ and ‘Safety test’
menus.
- The boiler’s operating parameters must
have been checked/adjusted.
As a rule, no changes need to be made
to the boiler’s factory settings.
See the ‘Settings’ menu.
- The user must have been informed about
how the system is operated and how it
works.
First firing
When the boiler is fired for the first time, it must be
fired carefully. This is so that any moisture in the
ceramics is evaporated slowly to avoid damage to
the ceramics and so that the condensation formed
by firing in a cold boiler is evaporated rapidly and
ventilated out through the chimney.
The boiler must be fired:
• with a small fire, roughly ten pieces of wood.
• without turbulators.
When the ceramics are dry, the boiler can be fired
normally. Check then at the outlet of the flue that the
smoke is white and there is no odour.
Turbulators
The boiler is supplied with turbulators. Their task is
to make the flue gases turbulate to extract more heat
from the flue gases and thus increase efficiency.
Flue gas temperature
During combustion, water vapour is formed. This
accompanies the flue gases out in the chimney and
can condense to form water there, which can have
a harmful effect on the chimney.
A low flue gas temperature results in better efficiency
but this must be weighed up against the risk of
condensation.
Measures to minimise the risk of condensation:
• fit a draught damper.
• insulate the flue pipe between the boiler and the
chimney.
• insulate the chimney in cold rooms.
• remove/shorten the turbulators.
In each case, check the flue gas
temperature so that condensation
does not form in the chimney.
Starting the boiler