Download User manual and Installation instructions

MAINTENANCE
Control panel
Turn the controls panel I , as shown in figure
Fig. 9.3, to access in an optimal manner the
components inside the boiler.
9.4
Emptying the c.h. system
• Close the c.h. isolating valves (5 and 9 in
Fig. 9.4).
• Loosen the central heating drain cock 11
indicated in Fig. 9.5.
CLOSED
I
Main circuit drain
valve
OPEN
11
Fig. 9.3
Fig. 9.5
9.3
Emptying the d.h.w. system
• Turn off the d.c.w .inlet isolating valve 8
(Fig. 9.4).
• To make draining easier, lift the plug 26 of
the automatic relief valve in Fig. 9.6.
• A small quantity of water will remain in the
d.h.w. heat exchanger after draining. If the
boiler is being drained to prevent freezing, the d.h.w. heat exchanger must be
removed and inverted to drain fully or an
antifreeze solution added.
5
MAINTENANCE
26
9
8
Close
position
Fig. 9.4
• Turn on the hot water taps and any drain
cocks.
Fig. 9.6
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