Opening Sequence Of The Fuse-Holder - Riello 20047690 Installation, Use And Maintenance Instructions

4.9.2

Opening sequence of the fuse-holder

In case of failure or control of the fuse-holder, follow these steps to
remove or replace the fuse:
Disconnect the electrical supply from the burner by
means of the main system switch.
DANGER
Unhook as indicated in Fig. 18.
S8688
Open the component side (check or replace) as indicated in
Fig. 19.
S8689
Installation
Close the component side (Fig. 20).
S8690
Hook the component side (Fig. 21).
Fig. 18
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After the installation, verify all the safety conditions:
pipe-line leakage, draft, adequacy and stability of
main flame at all allowable firing rates and sudden
changes in firing rate, performance and gas tight-
WARNING
ness of all safety shut-off valves.
Fig. 19
Cover plates, enclosures, and guards must be
maintained in place at all times, except during main-
tenance and servicing.
25 GB
Fig. 20
Fig. 21
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