SENKO fireplaces
–
Instruction manual
19
Installation of an approved safety valve
with opening overpressure
set to 2,5 bar is mandatory in closed systems. Safety and expansion
conduits must not have any kind of block elements.
It is necessary to
install the deaerating valve
. When filling the boiler
and the radiator system it is necessary to open the mixing valve, if one had
been installed; adequately deaerate the boiler and the heating system.
figure 8
Open central heating system
Closed central heating system