32
2 13 System filling and emptying
The
Power Plus Box
filling system is not equipped with a
filling tap, which must be installed on the system return.
FILLING
- Check that the diverting valve (1) and the system re-
turn tap (2) for every heating element are open
1
2
- Open the automatic bleed valve caps (3) on each
heating element by two or three turns
3
- Open the filling tap (4), provided on the system, until
the pressure indicated on the pressure gauge is
1.5
bar
- Close the filling tap (4).
4
b
Deareation of the
Power Plus Box
modular system
takes place automatically through the automatic
bleed valves located at the top of every heating ele-
ment. Check that the valve cap is open.
EMPTYING
Before emptying, disconnect the electric power supply by
switching the main system switch to "off”.
Make sure that the filling tap (4), installed on the hydraulic
system, is closed
4
6