Installation
15
Värmebaronen Vedolux -350, -450 and -650
The opening pressure of the safety valve
is determined by the component in the
system that tolerates the lowest pressure.
A closed expansion tank is best connected in the
manner shown in the system in principle.
Thermal valve
A thermal valve, STW, must be connected to the
boiler’s cooling coil. The function of the valve is
to limit the boiler temperature if the boiler has no
power or if the flow, the cooling, ceases. The valve
admits cold water, which cools the heat so that the
temperature of the boiler does not exceed 230°F.
An adequate volume of cooling water must be present
(see the data for the cooling coil) regardless of
whether the water supply is your own or municipal.
The valve’s opening temperature must be 203 –
207°F and it must be fully open at 230°F.
The valve’s drainage pipe must be laid to a floor drain.
Follow the instructions of the valve manufacturer and
the existing standards and regulations.
Filling/draining
The boiler must be fitted with one or more valves
for filling and draining. The boiler is best filled with
a fixed filling line.
Venting
The installation must be such that air is automatically
vented via the expansion line and/or via bleed valves.
Pipe installation