84 EN
cod. 3540000272 - Rev. 01 - 01/2024
3.3 Maintenance
IMPORTANT
B
ALL MAINTENANCE WORK AND REPLACEMENTS
MUST BE CARRIED OUT BY SKILLED QUALIFIED
PERSONNEL.
Before carrying out any operation inside the boiler,
disconnect the power and close the gas cock up-
stream. Otherwise there may be a danger of explo-
sion, electric shock, suffocation or poisoning.
Opening the front panel
B
Some internal components of the boiler can reach
temperatures high enough to cause severe burns. Be-
fore carrying out any operation, wait for these compo-
nents to cool or else wear suitable gloves.
To open the boiler casing:
1. Undo the screws “1” (see fig. 32).
2. Pull the panel outwards and lift it.
fig. 32- Front panel opening
B
On this unit, the casing also acts as a sealed chamber.
After any operation involving opening the boiler, care-
fully check the correct refitting of the front panel and
its seal.
2
3
1
1
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