Programming The Parameters - Beretta Mynute Green 50 R.S.I. Manuel D'utilisation Et D'installation

DESCRIPTION
Flame lockout / Water circulation failure (differential
pressure switch signal)
Limit thermostat intervention
Fan fault
Water pressure switch fault
Domestic hot water NTC probe fault
Fault on heating delivery NTC probe or delivery-return
differential circuit-breaker
Fault on heating return NTC probe or return-delivery
differential circuit-breaker
Intervention of thermal safety device on flue gas probe
Flue gas NTC probe or heat exchanger cleaning
Intervention of low temperature thermostat - general
alarm
Combustion analysis procedure in progress
Fixed green
There is flame, the boiler works regularly.
RED LED
If the red LED lights up, this indicates the presence of a fault; the monitor
shows a code interpreted as follows:
To restore operation (deactivate alarms):
Faults A 01-02-03
Position the function selector to
the required position.
If the reset attempts do not reactivate the boiler, contact the Technical
Assistance Centre.
Fault A04
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
the filling tap until the pressure reaches a value between 1 and 1.5 bar.
Then position the mode selector to the desired position.
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 A06
Contact the Technical Assistance Centre.
Fault A07
Contact the Technical Assistance Centre.
Fault A08
Contact the Technical Assistance Centre.
Fault A09 with fixed red LED lit
Position the function selector to
the required position.
If the reset attempts do not reactivate the boiler, request the intervention of
the Technical Assistance Service.
Fault A09 with flashing red and green LEDs
The boiler is equipped with an auto-diagnostic system which, based on the
total number of hours in certain operating conditions, can signal the need
to clean the primary exchanger (alarm code 09 with flashing red and green
LEDs and flue gas meter >2,500). Once the cleaning operation has been
completed, using the special kit supplied as an accessory, the total hour
meter will need to be reset to zero as follows:
- switch off the power supply
- remove the housing
- loosen the fixing screw then turn the instrument panel
- loosen the fixing screws on the cover (F) to access the terminal board
(fig. 22)
- while the boiler is powered up, press and hold the CO button (fig. 37) for
at least 4 seconds, to check the meter has been reset, power down then
power up the boiler; the meter reading is shown on the monitor after the
"-C-" sign.
Live electrical parts (230 V AC).
Note: the meter resetting procedure should be carried out after each in-
depth cleaning of the primary exchanger or if this latter is replaced. To
check the status of the total hour meter, multiply the reading by 100 (e.g.
reading of 18 = 1800 total hours; reading of 1 = 100 total hours).
The boiler continues to operate normally even when the alarm is activated.
DISPLAY CODE
A01
A02
A03
A04
A06
A07
A08
A09
A09
A77
ACO
(OFF), wait 5-6 seconds then set it to
(OFF) and adjust
(OFF), wait 5-6 seconds then set it to
RED LED
ON
flashes
ON
ON
flashes
ON
ON
ON
flashes
ON
OFF
Fault A77
This is an automatic-reset fault, if the boiler does not restart, contact the
Technical Assistance Centre.
Flashing YELLOW LED
Combustion analysis in progress.
4.4 Alarms record
The "ALARMS RECORD" function is automatically enabled after 2 hours
of continuous power supply to the display, or immediately if parameter P1
is set at 1.
The record contains the most recent alarms (maximum 5). They are
visualised in sequence when button P1 on the display card is pressed and
.
released.
If the record is empty (P0=0) or the record management function is disabled
(P1=0), the display function is not available.
The alarms are shown in reverse (not chronological) order: this means the
last alarm generated is the first one to be visualised.
To reset the alarms record, just set parameter P0 at 0.
NOTE: to access button P1, you must remove the command panel cover
and identify the display card (fig. 47).

PROGRAMMING THE PARAMETERS

The display appearance can be personalised by programming three
parameters:
Parameter Default
P0 0
P1 0
P2 0
Keep button P1 on the display (fig. 47) pressed for at least 10sec to activate
the programming procedure. The three parameters and their respective
values will be shown cyclically on the display. To modify the value of a
parameter, just press button P1 again when the required parameter
appears; keep it pressed until the value changes from 0 to 1 or vice versa
(about 2 sec).
The programming procedure ends automatically after about 5 minutes, or
following a supply voltage fall.
YELLOW LED GREEN LED
OFF OFF
OFF OFF
OFF OFF
OFF ON
OFF flashes
OFF OFF
OFF OFF
OFF OFF
OFF flashes
OFF OFF
flashes OFF
Description
Reset alarms record (0= record empty /
1= record not empty)
Immediate enabling of alarms record (0=
enable timed record management / 1=
enable immediate record management)
Do not modify
ENGLISH
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