Initial Ignition - Special Functions; System Gas Extraction Function; Anti-Legionellosis Function - Baxi NUVOLA PLATINUM + Instruction Manual For Users And Fitters

15. INITIAL IGNITION - SPECIAL FUNCTIONS

When the boiler is powered up, the code "311" appears on the display and the boiler is ready for "initial ignition".
Follow the procedure "VENT FUNCTION" as described in the section below and enable function 312.
After this operation, the boiler is ready to ignite the burner.
During this phase it is recommended to keep the pressure in the system at a value between 1 and 1.5 bar.
Available functions are:
• Chimney sweeper (programme row 303) - Options: Full load (maximum thermal power of the boiler), Part load (reduced
thermal power), Full heating load (maximum thermal power in the heating mode).
• Controller stop function (304) - Options: from 100% (maximum thermal power) to 0% (reduced thermal power). This function
facilitates gas valve calibration operations.
• Manual control (301) - Options: 25 - 90 (° C) In this mode the boiler operates at the set temperature value.
• Deaeration function (312) - Options: On (function enabled) - Off (function disabled). See section 15.1 "System gas extraction
function".
The procedure used to enable these functions is the following:
• From the main menu
approx. 6 seconds)
figure to side: 303 - 304 - 301 - 312)
• B to choose the FUNCTION
chosen function then
B to edit (see example below).
E.g.: turn knob B to enable the CALIBRATION function
(programme row 304), press knob B, the function is now active
and preset to 100% (the boiler is at its maximum thermal
power). Press the knob and turn it to select the required power
percentage (0% corresponds to the reduced thermal power
level).
To manually interrupt the function, repeat the procedure described above. When the function is disabled, " off" is shown on
the display.

15.1 SYSTEM GAS EXTRACTION FUNCTION

This function is used to facilitate the elimination of the air inside the heating circuit when the boiler is first installed or after
maintenance when the water is drained from the primary circuit. The electronic board will activate a pump on/off cycle lasting 10
minutes. The function will automatically stop at the end of the cycle.
To manually interrupt the function, repeat the procedure described above. When the function is disabled, " off" is shown on
the display.

15.2 ANTI-LEGIONELLOSIS FUNCTION

The anti-legionellosis function is NOT ENABLED. To enable it, set parameter 1640 as described below.
To activate the ANTILEGIONELLOSIS function, proceed as follows:
• Access MENU 2 as described in section 14.2.1.
• B Temps / mode hot water
• B Periodically or Fixed weekday then choose one of the two items and
Choose Periodically to enable the function once a week on the set day and at the set time. To set the day and time, use the same
procedure described above: set parameter 1641 to establish which days (from 1 to 7) the function must activate and parameter
1644 to set the starting time of the function.
Choose Fixed weekday to enable the function once a week on the set day and at the set time. Set parameter 1642 to establish
the day of the week (from Monday to Sunday) on which the function must activate and parameter 1644 to set the start time of the
function.
7219840.02 (1-03/16)
A and C (hold down for
names of the FUNCTIONS (see
B to ENABLE the
B FUNCTION menu
B B
303 304 301
programme row 1640 then
46
312
B to confirm.
B to confirm.