8.5 Venting the installation
1.
2.
3.
4.
5.
6.
7.
8.
9.
Take care as the water might still be hot.
If the hydraulic pressure of the water in the central heating system is
below 0.8 bar, it is advised to increase the pressure (the recommended
hydraulic pressure is 1.0 - 1.5 bar) as described in section 7.5.
8.6 Draining the installation
• Slowly turn the knob (C)
this by hand without using any tools.
•
9. TROUBLESHOOTING
(see the fault tables that follow).
TEMPORARY FAULT (H.x.x.)
PERMANENT FAULT (E.x.x)
RESET
H
E). The digits indicate the
BO-0000076
BO-0000075
C
H
E
13
BO-0000026
BO-0000027
7654349 (02-09/16)