Beretta Mynute Boiler Green 25 B.S.I. Manual De Instalador Y Usuario página 10

ENGLISH
BOILER STATUS
Off status (OFF)
Stand-by
ACF alarm lockout module
ACF electronics fault alarm
25 B.S.I.: fumes exhaust - air intake obstruction alarm
Limit thermostat alarm
Tacho fan alarm
35 B.S.I.: air pressure switch alarm
Water pressure switch alarm
NTC domestic water fault
NTC heating delivery fault
Heating delivery probe over-temperature
Delivery/return line probe differential alarm
NTC heating return line fault
35 B.S.I.: low temperature system thermostat alarm
Heating return line probe over-temperature
Outlet/return line probe differential alarm
Cleaning the primary heat exchanger
NTC flue gases fault
Flue gases probe over-temperature
Parasite flame
25 B.S.I.: low temperature system thermostat alarm
Temporary pending ignition
Water pressure switch intervention
Calibration service
Calibration installer
Chimney sweep
Vent cycle
External probe presence
Domestic water heat request
Heating heat request
Antifreeze heat request
Flame present
4.5 Boiler configuration
The electronic board contains a series of jumpers (JP4) that can be
used to configure the boiler.
To access the board, proceed as follows:
- switch off the power supply
- remove the shell
- turning the instrument panel towards you
- unscrew the two screws of the small cover on the electronic
board to have access to the terminals
JUMPER JP7 - fig. 16:
preselection of the most suitable heating temperature adjustment
field according to the installation type.
Jumper not inserted - standard installation
Standard installation 40-80°C
Jumper inserted - floor installation
Floor installation 20-45°C.
In the manufacturing phase, the boiler is configured for standard
installations.
JP1 Calibration (Range Rated see paragraph on "Adjustments")
JP2 Reset heating timer
JP3 Calibration (see paragraph on "Adjustments")
JP4 Do not use
JP5 Do not use
10
DISPLAY
OFF
-
A01
A02
A03
A04
A06
A07
A08
A09
A11
A77
80°C flashing
flashing
ADJ
ACO
60°C
80°C
JP6 Enable night-time compensation function and continuous
pump (only with external sensor connected)
JP7 Enable management of low temperature/standard installations
(see above)
JP8 Do not use
4.6 Setting the thermoregulation (graphs fig. 17)
The thermoregulation only operates with the external sensor
connected; once installed, connect the external sensor (accessory
available on request) to the special terminals provided on the boiler
terminal board.
This enables the THERMOREGULATION function.
Selecting the compensation curve
The compensation curve for heating maintains a theoretical
temperature of 20°C indoors, when the external temperature is
between +20°C and -20°C. The choice of the curve depends on
the minimum external temperature envisaged (and therefore on the
geographical location), and on the delivery temperature envisaged
(and therefore on the type of system). It is carefully calculated by
the installer on the basis of the following formula:
envisaged delivery T. - Tshift
KT=
20- min. envisaged external T.
Tshift = 30°C standard installations
25°C floor installations
TYPES OF ALARMS
None
Signal
Definitive lockout
Definitive lockout
Definitive lockout
Definitive lockout
Signal
Temporary stop
Temporary then definitive
Definitive lockout
Temporary stop
Temporary stop
Temporary then definitive
Definitive lockout
Signal
Temporary stop
Temporary then definitive
Temporary stop
Temporary stop
Temporary stop
Temporary stop
Signal
Signal
Signal
Signal
Signal
Signal
Signal
Signal