Beretta QUADRA II 24 C.S.I. Manuel D'installation Et D'utilisation page 7

BOILER STATUS
Limit thermostat alarm
Air pressure switch alarm
H2O pressure switch alarm
NTC domestic water fault
NTC heating fault
Parasite flame
Electric calibration min and max heating
Transient awaiting ignition
Air pressure switch intervention
H2O pressure switch intervention
Preheating Function active
Preheating heat request
External probe present
Domestic water heat request
Heating heat request
Anti-freeze heat request
Flame present
To restore operation (deactivate alarms):
Faults A 01-02-03
Position the function selector to
set it to the required position
mode). If the reset attempts do not reactivate the boiler, contact the
Technical Assistance Centre.
Fault A 04
In addition to the fault code, the digital display shows the symbol
Check the pressure value indicated by the water gauge:
if it is less than 0.3 bar, position the function selector to (OFF)
and adjust the filling tap until the pressure reaches a value between
1 and 1.5 bar.
Then position the mode selector to the desired position
mer) or (winter).
The boiler will perform one purge cycle lasting approximately 2
minutes. If pressure drops are frequent, request the intervention of
the Technical Assistance Service.
Fault A 06
The boiler operates normally but cannot reliably maintain a con-
stant domestic hot water temperature, which remains set at around
50°C. Contact the Technical Assistance Centre.
Fault A 07
Contact the Technical Assistance Centre.
4.5 Adjustments
The boiler has already been adjusted by the manufacturer.
If it is necessary to adjust it again, for example after extraordinary
maintenance, after replacement of gas valve or after gas conversion,
carry out the following procedure.
The maximum output adjustment must be carried out in
the sequence indicated exclusively by qualified personnel.
- remove the shell unscrewing the fixing screws A (fig. 6)
- unscrew by two turns the screw of the pressure test point down-
stream the gas valve and connecting the pressure gauge
- disconnect the compensation inlet of the air distribution box
4.5.1 Maximum power and minimum domestic hot water adjust-
ment
- Fully open the hot water tap
- on the control panel:
- set the mode selector to
- turn the domestic hot water temperature selector to its maximum
(fig. 8a)
- power the boiler setting the system main switch to "on"
- check that the pressure on the pressure gauge is stable; or with
a milliammeter in series to the modulator, make sure that the
DISPLAY
A02
A03
A04
A06
A07
A11
ADJ
88°C
flashing
flashing
flashing
flashing
60°C
80°C
(OFF), wait 5-6 seconds then
(summer mode) or
(summer) (fig. 2a)
modulator supplies the maximum available current (120 mA for
G20 and 165 mA for LPG).
- carefully prise out the protection cap of the adjustment screws,
using a screwdriver (fig. 15)
- with a fork spanner CH10 use the adjustment nut of the maximum
output in order to obtain the value indicated in table "Technical data"
- disconnect the modulator faston
- wait until the pressure on the pressure gauge is stable at minimum value
- paying attention not to press the internal shaft, use an Allen
spanner to turn the red adjustment screw for domestic hot water
minimum temperature regulation, calibrating it until the pressure
gauge reads the value indicated in the table "Technical data"
- reconnect the modulator faston
- close the domestic hot water tap
- carefully refit the protection cap of the adjustment screws.
4.5.2 Minimum and maximum heating electric adjustment
The "electric adjustment" function is activated and deactivated
exclusively by the jumper (JP1) (fig. 16).
ADJ appears on the display to indicate that the calibration pro-
cedure is underway.
The function can be enabled in the following way:
- by powering the card with the jumper JP1 inserted and the mode
selector in winter position, independently from the possible pres-
ence of other operation request.
- by inserting the jumper JP1, with the mode selector in winter posi-
tion, without heat request in progress.
By activating the function the burner is ignited through simula-
tion of heat request in heating.
To perform calibration operations, proceed as follow:
(winter
- switch off the boiler
- remove the shell and access the card
- insert the jumper JP1 (fig. 16) to enable the knobs placed on the
control panel to the minimum and maximum heating adjustment
functions.
.
- make sure that the mode selector is in winter position (see section
4.2).
- power the boiler
Electric card in voltage (230 Volt)
(sum-
- turn the heating water temperature adjustment knob B (fig. 17) until
it reaches the minimum heating value as indicated in the multigas
table
- insert the jumper JP2 (fig. 16)
- turn the domestic hot water temperature adjustment knob C (fig.
17) until it reaches the maximum heating value as indicated in the
multigas table
- remove the jumper JP2 to store the maximum heating value
- remove the jumper JP1 to store the heating minimum value
and to get out the calibration procedure
- reconnect the compensation inlet to the air distribution box
Disconnect the pressure gauge and retighten the pressure test point
screw.
To finish the calibration function without storing the set values,
proceed as follows:
a) set the mode selector to position (OFF)
b) remove power supply voltage
c) remove JP1/JP2
The calibration function is automatically finished, without storing
minimum and maximum values, after 15 minutes of its activa-
tion.
The function is automatically finished also in case of definitive
stop or lockout.
Also in this case, function conclusion DOES NOT provide values
storing.
Note
To calibrate only maximum heating, it is possible to remove the
jumper JP2 (to store the maximum) and then get out from the func-
tion, without storing the minimum, setting the mode selector to
(OFF) or removing the voltage from the boiler.
After each intervention on the adjustment element of the gas
valve, seal it with sealing varnish.
QUADRA II 24 C.S.I.
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