Installation
13
Värmebaronen Vedolux 55
How the accumulator control works
The accumulator control ensures that the boiler has
a high working temperature before it is loaded by
the accumulator tank. It also prevents the return
temperature to the boiler being too low, which minimises
the risk of condensation in the combustion chamber.
The charging pump is controlled by the boiler's flue gas
thermostat.
Expansion system
The boiler is connected to an open or closed expansion
system. The volume of the expansion tank is
dimensioned according to the prevailing conditions. The
recommended values for this are that the volume, for an
open system, must be approximately 5% of the system's
total volume or 13-15% for a closed system.
In an open system, the distance between the top of the
highest radiator and the expansion tank may not be less
than 98.4 in. to avoid the water in the heating system
being oxygenated.
The expansion tank is connected in an unisolatable,
uninterruptible rise from the boiler's expansion
connection.
To avoid damage in the event of any blockage in the
expansion system, the boiler should be fitted with a
safety valve, 21.7 psi.
In a closed system, the boiler must be fitted with a
safety valve, 21.7 psi, in an uninterruptible connection
from the connection on the top of the boiler, and a vent
valve.
The expansion tank is best connected with 0.6 in. Cu
pipe, as shown in the system in principle.
Cooling coil - thermal relay
The boiler's cooling coil must be fitted with a suitable
thermal valve to reduce the boiler temperature in
the event of boiling. Follow the valve manufacturer's
installation instructions.
Filling, heating system
The boiler is fitted with valves for filling and draining.
Turbulators
If the turbulators are incorrectly positioned, efficiency
is reduced. The service life of the turbulators is also
reduced.
A
A
A
A
B
B
B
B
A
B
= Short turbulators
= Long turbulators
The eight turbulators are positioned in the boiler’s flue
gas tubes as shown above. The turbulators make the
flue gases turbulate, which causes more heat to be
transferred to the boiler water.
If the flue gas temperature from the boiler is too low,
there is a risk of condensation in the flue. To increase
the temperature, the three upper turbulators can be
removed or cut to a length that produces a suitable flue
gas temperature.
Bracket for sweeping tool
The bracket is installed on any side of the boiler or in
another suitable location near the boiler.
Draught hatch
An extremely high chimney and/or a strong wind may, in
certain cases, cause such a high draught in the chimney
that combustion takes place with the fan switched off.
The solution is to install a draught hatch with which the
draught can be reduced to 145 - 218 psi.
Pellet burner
Vedolux 55 is primarily designed for wood firing, but can
be adapted for use with a pellet burner. The burner is
installed in the wood filling hatch.
If operated with a burner, the accessory for pellet fir-
ing, a cover plate with a draught hatch, must be used
instead of the fan.
Pay attention to the flue gas temperature. There is a risk
of condensation. Check that the flue gas temperature is
suitable for the chimney type.
The boiler temperature must not be lower than 158°F.
You should follow the burner manufacturer’s instructions.
Содержание Vedolux 55
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