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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
5
Close
position
Fig. 9.4
- 70 -
MAINTENANCE
9.3
•
Close the c.h. isolating valves
Fig. 9.4 ).
•
Loosen the central heating drain cock
indicated in Fig. 9.5 .
I
Fig. 9.5
•
To make draining easier, lift the plug
the automatic relief valve in Fig. 9.6 .
7
Fig. 9.6
Emptying the c.h. system
Main circuit drain
valve
OPEN
( 5 and 7 in
9
CLOSED
9
22 of
22
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