Id.: 17-16-26-3017-03 | 6.2017
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4.4.2 Charging of the heating system
WARNING
Thorough venting of the system has to be ensured. Otherwise, malfunctions in operation
may occur.
CAUTION
An expansion vessel of suitable dimensions must be fitted to the heating system. The
expansion vessel must be dimensioned in accordance with standard EN 12828.
CAUTION
For normal operation of the expansion vessel, it is necessary to perform proper adjustments
of the tank’s working pressure. The settings have to be checked every 12 months.
The pressure settings of the expansion vessel and filling the hating system
B
C
D
A
H[m]
psv
A - Filling the system.
B - Expansion vessel.
C - Ball valve with
exhaust.
D - Air filling valve.
H - Height of the heating
system.
p
sv
- Pressure of the
safety valve.
CAUTION
Consider the maximal operational pressure of the vessel.
NOTE
Unsuitable pre-load of the expansion vessel with the pressure
p
0
is the reason for incorrect
operation of the heating system.
NOTE
The dimensions of the expansion vessel must be in accordance with standard EN 12828.
