Ferroli F24 Installation, Service And User Instructions Manual page 34

7.12 Spark or fl ame detect electrode
(fi g. 38)
• Isolate gas and electricity supply
• Remove outer case (two screws bottom rear
corners)
• Open room sealed compartment and
combustion chamber
• Identify electrode from fi g. 38
• Unplug electrical connection "A" from sensing
electrode
• Remove fi xing screw and remove fl ame detect
electrode
• Remove the two fi xing screw from spark
electrode plate and remove it.
7.1 . . . fl o meter
• Isolate electricity and water supplies
• Open a hot water tap to release water pressure
from the domestic side of the heat exchanger
close tap.
• Remove outer case (two screws bottom rear
corners).
• Remove two screws from control panel and tilt
forward
• ake off protective cover from main
unplug fl ow meter lead from terminal
• lace a piece of cloth or some other absorbent
material over rear of control panel to catch
any drops of water that may be released when
removing the fl ow meter
• Using a mm open ended spanner undo fl ow
meter unions "A" and " " taking care not to
twist the copper tubing (access through base
panel).
• Remove fl ow meter check
restrictor fi t to new fl ow meter.
• Reassemble in reverse order.
Take care on correct position of
components as reported in fi g. 9b
Key
Cold w ter nlet fi lter
37
a
i
G sk
et
38
a
Cold w ter fl ow l m ter
39
a
i i
34
and
clean fi lter
lame
detect
A
A
37 38 39 38
Spark
3
Fig. 8
39a
Fig.
b
39
Fig.