Ferroli F 24 B Instructions For Installation, Use And Maintenance Manual page 11

Ferroli F 24 B
Make Up Water
Provision must be made for replacing water lost from the sealed system. Reference should be made
to BS6798, for methods of filling and making up sealed systems. There must be no direct connection
between the boiler's central heating system and the mains water supply. The use of mains water to
charge and pressurise the system directly, is conditional upon the Local Water Byelaws. Again any such
connection must be disconnected after use. The supplied temporary filling loop is shown in fig. 5. Ensure
the filling point is on the return pipe to the boiler.
Attention - is drawn to the Model Water Byelaws.
Fittings manufactured from duplex (alpha-beta) brass are not acceptable for underground use and
certain water undertakings will not accept their use above ground.
Ensure all pipework is adequately supported
Hot water
Automatic
Bypass
4
3
Gas
Additional expansion
vessel C.H. (if required)
Filling
point C.H.
2
NOTE: An automatic bypass must
be fitted as far as possible from the
boiler if thermostatic radiator valves
are fitted thoughout.
Fig. 4
Key
1. Filling point C.H.
2. Temporary connection
3. Cold water supply
1
4. Double check valve
Fig. 5
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