Maintenance - Ferroli BlueHelix HiTech RRT H Instructions For Use & Installation

First boiler ignition
• Make sure there is no draw-off of hot water and room thermostat requests.
• Turn on the gas and check that the gas supply pressure ahead of the unit complies with the
technical data table or in any case the tolerance provided for by the regulations.
• Power the boiler electrically, the display shows the software version number of the control unit
and display and then FH and Fh air venting cycle (see cap. 1.3 "Connection to the power sup-
ply, switching on and off" on page 321).
• After the Fh cycle, the display will show the winter mode screen (fig. 11); do the temperature
adjustments: heating flow and DHW outlet (fig. 14 and fig. 15). Check if the value of the flue
parameter, P68 - *** '- Transparent Parameters Table' on page 350 ***, is suitable for the length
of flue installed.
• In case of gas change (G20 - G30 - G31 - G230), check if the relevant parameter is suitable for
the type of gas present in the supply system (Table 10 on page 350 and cap. 3.1 "Adjustments"
on page 347).
• Put the boiler in DHW or heating mode (see cap. 1.3 "Connection to the power supply, switch-
ing on and off" on page 321).
• In Heating mode, do a request: the radiator symbol flashes on the display and the flame ap-
pears when the burner ignites.
• DHW mode with hot water tank preparation in progress: the faucet symbol flashes on the dis-
play and the flame appears when the burner ignites (after a few ignitions by the burner, the sys-
tem further adapts the optimum ignition point).
• Do the combustion check as described in par. "Checking the combustion values" on page 347.

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.
354
BlueHelix HiTech RRT H
cod. 3541V484 - Rev 00 - 07/2022
EN