Maintenance - Ferroli BlueHelix HiTech RRT H Instructions For Use, Installation And Maintenance

3.3 Maintenance

IMPORTANT
ALL MAINTENANCE WORK AND REPLACEMENTS
B
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
Some internal components of the boiler can reach
B
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. 41).
2. Pull the panel outwards and lift it.
On this unit, the casing also acts as a sealed chamber.
B
After any operation involving opening the boiler, care-
336
BlueHelix HiTech RRT H
fig. 41- Front panel opening
cod. 3541V481 - Rev. 00 - 06/2021
EN