8
Technical features and dimensions
2.2 - MAIN COMPONENTS AND
FUNCTIONING
The PKX boilers are built with a blind furnace, in which the
burner's central flame travels towards the bottom and then is
distributed in the flue pipes; at the terminal part of the pipes
the combustion gas is collected in the flue chamber and then
sent to the chimney. During burner operation, within the boi-
ler's output range, the combustion chamber is always under
positive pressure.
For this pressure value refer to the table on page 8, to the
column "Heating losses flue side".
2
4
5
M
Rmt
Ve
Rbt
1
3
6
7
1.
Furnace
2.
Flue pipes with flue deflectors
3.
Door complete with flame control light
4.
Smoke chamber
5.
Body insultation
--
Control panel (not visible)
M
System flow
Rbt
Low temperature system return
Rmt
Average temperature system return
Ve
Expansion vessel