Parameter Name; Temporary Switch-Off; Switching Off For Lengthy Periods - Beretta MYNUTE X C Installer And User Manual

MYNUTE X
E085 ON
E094 ON
E095 ON
E058 ON
E065 ON
E086 ON
Warning lights
BOILER STATUS
Power-on
Vent cycle
OFF status
No heat request (stby)
Transitional ignition/
overtemperature
Presence of flame
Chimney sweep
Screed heating
4.21 INFO menu
Pressing key 3 on the display screen displays a list of information regarding the operation of
the boiler listed by parameter name and value. Passing from the display of one parameter
to the next takes place by pressing respectively the keys
allows the selected parameter to be displayed; pressing the key
main screen:

PARAMETER NAME

SCREED HEATING HOURS
CH PROBE
RETURN PROBE
DHW PROBE
EXHAUST PROBE
OUTDOOR TEMP PROBE
FILTERED OUTDOOR TEMP
FAN SPEED
MAIN ZONE OUTLET
EXHAUST PROBE HOURS
MAIN ZONE SET
WATER PRESSURE
COMFORT
SUN ON
ELECTRONIC BOARD ID
ELECTRONIC BOARD FMW
INTERFACE FMW
4.22

Temporary switch-off

In the event of temporary absences (weekends, short breaks, etc.) set the status of the
boiler to OFF .
While the electrical supply and the fuel supply remain active, the boiler is protected by the
systems:
- heating anti-freeze: this function is activated if the temperature measured by the flow sensor
drops below 5°C. A heat request is generated in this phase with the ignition of the burner at
minimum output, which is maintained until the outlet water temperature reaches 35° C;
- domestic hot water anti-freeze: this function is activated if the temperature measured
by the domestic hot water probe drops below 5°C. A heat request is generated in this
phase with the ignition of the burner at minimum output, which is maintained until the
outlet water temperature reaches 55° C.
22
incomplete combustion
These are temporary alarms that if they occur several times in an hour they become definitive; the last error to occur is
incomplete combustion
It is not possible to release the alarm before the end of the post-purging unless the boiler's power supply is switched off.
incomplete combustion
mains voltage fault
current modulation alarm
flue gases obstruction alarm
RED LED GREEN LED
flashing flashing
0.5 sec. on/1 sec. off 0.5 sec. on/1 sec. off
flashing
0.3 sec. on/0.5 sec. off
flashing
0.3 sec. on/0.5 sec. off
flashing
0.3 sec. on/0.5 sec. off
ON
ON
flashing flashing
1 sec. on/1 sec. off 1 sec. on/1 sec. off
and . Pressing the key
returns you to the
DESCRIPTION
Number of hours passed with screed heating function
Boiler fl ow sensor value
Boiler return sensor value
Domestic hot water probe value when boiler in instantaneous mode
Storage cylinder probe value high when boiler in heating only mode
Flue gas probe value
Outdoor temperature sensor instantaneous value
Outdoor temperature fi ltered value used in the thermoregulation algorithm for calculating the
heating setpoint
Number of turns of the fan (rpm)
Main zone fl ow sensor value (when MAIN ZONE ACTUATION TYPE = 1)
Number of hours the heat exchanger has been operating in "condensing mode"
Main zone delivery setpoint
System pressure
Domestic hot water comfort (OFF, STANDARD, SMART)
Special functions active for domestic hot water temperature in high inputs
Electronic board card identifi cation
Electronic board card fmw revision
Interface fmw
displayed and is followed by a post-purging of 5 minutes at the fan's maximum speed.
These are temporary faults that restrict the ignition cycle.
Temporary fault signalled during pre-purging. Post-purging is maintained for 5 min at maximum fan speed.
RED and GREEN
flashing
0.5 sec. on/0.5 sec. off
b
The operation of the ANTI-FREEZE function is indicated by a scrolling message
on the interface display: <<DHW ANTIFREEZE FUNCTION IN PROGRESS>> or
<<CH ANTIFREEZE FUNCTION IN PROGRESS>>, as the case may be.
- circulator anti-locking: the circulator activates every 24 hours of stoppage for 30
seconds.
4.23

Switching off for lengthy periods

The long term non use of the boiler causes the following operations to be carried out:
- set the status of the boiler to
- set the system's main switch to "off"
- close the fuel and water taps of the heating and domestic hot water system.
NOTES
The red and green LEDs come on at the same time
The red and green LEDs come sequentially one at a time
Only if the flame is present
The red and green LEDs come on alternately