- 70 -
MAINTENANCE
MAINTENANCE
Figure 9.8
D
E
F
G
H
Control panel
Remove screws
I
and turn the control panel
J
,
as shown in figure Figure 9.9, for optimal ac-
cess to the internal components of the boiler.
Figure 9.9
I
J
9.4 Reinstalling the body panels
Side panels
Reinstall the side panels
E
and
F
following the
operations described in section "Removing the
body panels" on page 69 in reverse order.
Front panel
Reinstall the front panels
D
working in the
reverse order to that described in section "Re-
moving the body panels" on page 69.
9.5 Emptying the DHW circuit
• Close the installed DHW inlet cocks
.
• Open the system's DHW cocks.
9.6 Emptying the heating circuit
• Close the installed heating system delivery
and return cocks.
• Loosen the heating circuit drain cock 10 indi-
cated in Figure 9.10.
Figure 9.10
OPEN
CLOSED
Heating circuit
drain cock
10
• To make draining easier, unscrew the auto-
matic bleed valve cap 23 in Figure 9.11.
