Beretta MYNUTE GREEN 28 C.S.I. Manual De Instalacion Y Uso página 16

For AL41 faults
If the pressure on the water gauge located on the control panel is
less than 0.5 bar, proceed as follows:
- turn the function selector to "
- for C.S.I.: fill slowly by opening the filling tap (fig. 29) until the
pointer of the water gauge lies between 1 and 1.5 bar (fig. 30)
- for R.S.I.: fill the system until the pressure indicated on the water
gauge lies between 1 and 1.5 bar(fig. 30)
- move the function selector to the desired position.
In case of frequent pressure drops, call in the Technical Service
Centre.
Only for C.S.I.: AL60 fault
The boiler works regularly but does not ensure the stability of the
hot water temperature which, however, is delivered at a
temperature of approximately 50°C.
Contact the Technical Assistance Centre.
Boiler configuration
The electronic board contains a series of jumpers (JP4) that can
be used to configure the boiler; access these by loosening the
fasteners B and removing the control panel cover A after turning
off the main switch.
JUMPER IN POSITION 1:
pre-selection of the most suitable heating temperature adjustment
field according to the type of system.
JUMPER NOT INSERTED - case A
Standard system 40-80 °C
JUMPER INSERTED - case B
Floor system 20-45 °C.
The boiler has been factory-configured for standard systems.
For C.S.I. models (fig. 32):
JUMPER IN POSITION 2: (unused)
JUMPER IN POSITION 3: (unused)
JUMPER IN POSITION 4: (unused)
JUMPER IN POSITION 5: COMBINED
JUMPER IN POSITION 6: (unused)
For R.S.I. models (fig. 33):
JUMPER IN POSITION 2: (water tank with probe)
JUMPER IN POSITION 3: (water tank with thermostat)
JUMPER IN POSITION 4: (unused)
JUMPER IN POSITION 5: (unused)
JUMPER IN POSITION 6: (unused)
The boiler is supplied standard with the jumper in position 3
(water tank with thermostat); if you wish to use an external
water tank with probe, move this jumper from position 3 to
position 2 (case C, fig. 33).
" (fig. 28)
28
30
31
case A
32
case A
33
16
FILLING
TAP
29
A
B
case B
case B case C