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MAINTENANCE
MAINTENANCE
Control panel
Turn the controls panel I , as shown in fi gure
Fig. 9.3 , to access in an optimal manner the
components inside the boiler.
Fig. 9.3
I
5
7
Close
position
Fig. 9.4
Emptying the c.h. system
9.3
Close the c.h. isolating valves
• (
5 and 7 in
Fig. 9.4 ).
Loosen the central heating drain cock
• 9
indicated in Fig. 9.5 .
Fig. 9.5
OPEN
CLOSED
Main circuit drain
valve
9
To make draining easier, lift the plug
• 22
of
the automatic relief valve in Fig. 9.6 .
Fig. 9.6
22
