Beretta 30 B.S.I. Manual De Instalacion Y Uso página 19

16
.
The boiler has already been factory adjusted by the manufacturer.
If a new adjustment is required, for example, after extraordinary
maintenance, replacing the gas valve or converting from natural
gas to LPG, proceed as follows.
Maximum and minimum power, minimum and maximum
heating, must be adjusted in the indicated sequence by
qualified staff.
- Loosen the two fixing screws (A) and remove the shell (fig. 3)
- Lift up the panel and turn it forwards
- Loosen the pressure tap screw downline from the gas valve by
about two turns and connect the pressure gauge to it
CALIBRATION & SERVICE operations must be performed with
the boiler in the OFF position. To do this, press the
until the display shows "- -" (fig. 42).
During parameter modification operations, the "select
functions" button acts as an ENTER (confirm) button, the
button acts as an ESCAPE button. If no confirmation is given
within 10 seconds, the value is discarded and returns to the
previously set one.
Setting the password
Press and hold down the operating mode button and the
together for about 10 seconds. The display will look like fig. 43.
Enter the password for accessing the parameter modifications
function by turning the domestic hot water temperature selector to
the required value.
The password is located on the back side of the control panel.
Confirm by pressing ENTER.
Calibration phases
Turn the domestic hot water selector to sequentially scroll the
CALIBRATION & SERVICE phases:
- 1 gas type
- 2 boiler power (do not modify this parameter)
- 10 domestic hot water mode (do not modify this parameter)
- 3 insulation level of building (only if external sensor is
connected)
- 45 inclination of thermoregulation curve (OTC), only if external
sensor is connected)
- 47 inclination of thermoregulation curve 2CH (OTC), only if
external sensor is connected)
- HP maximum fan speed (do not modify this parameter)
- LP minimum fan speed (do not modify this parameter)
- SP ignition speed (do not modify this parameter)
- HH boiler at maximum power
- LL boiler at minimum power
- MM fan ignition speed (do not modify this parameter)
- 23 maximum heating adjustment possibility
- 24 minimum heating adjustment possibility.
The parameters 2 - 10 - HP - SP - LP - MM - 23 - 24 must be
modified, by professionally qualified personnel, only if
absolutely necessary. The manufacturer refuses any
responsibility in the case of incorrect setting of the
parameters.
GAS TYPE (P. 1)
Modify the set value as follows:
- press ENTER to access the parameter modification function.
When ENTER is pressed, the previously set value starts flashing
(fig. 45)
- turn the domestic hot water temperature selector to change the
value (1 MTN - 2 LPG)
- press ENTER to confirm the new value. The digits stop flashing.
BOILER POWER (P. 2)
To modify the boiler power:
- select parameter 02
- press the ENTER button to access the parameter value
modification function.
As the ENTER button is pressed, the digits flash, highlighting
the previously set value
- turn the sanitary water temperature selector in order to adjust
the value to the desired number: 30 (30 kW).
- confirm the new value you have set by pressing ENTER. The
digits stop flashing.
ADJUSTMENTS
MAXIMUM VENTILATOR SPEED (P. HP)
- Select parameter HP
- Press the ENTER button, then modify the value of the parameter
by turning the sanitary water temperature selector. The maximum
speed of the fan is linked with the type of gas and the power of
the boiler, table 1
- Turn the sanitary water temperature selector in order to adjust
the set value
- Confirm the new value you have set by pressing ENTER.
The value indicated on the display is expressed in revs min/100
(example 3600 = 36).
button
The value set during this operation automatically modifies the
maximum value of parameter 23.
table 1
30 B.S.I.
button
MINIMUM VENTILATOR SPEED (P. LP)
- Select parameter LP
- Press the ENTER button, then modify the value of the parameter
by turning the sanitary water temperature selector. The minimum
speed of the fan is linked with the type of gas and the power of the
boiler, table 2
- Turn the sanitary water temperature selector in order to adjust
the set value
- Confirm the new value you have set by pressing ENTER.
The value indicated on the display is expressed in revs min/100
(example 3600 = 36).
The value set during this operation automatically modifies the
maximum value of parameter 24.
table 2
30 B.S.I.
VENTILATOR IGNITION SPEED (P. SP)
- Select parameter SP
- Press the ENTER button, then modify the value of the parameter
by turning the sanitary water temperature selector. The standard
slow start value is 3700 revs/min
- Confirm the new value you have set by pressing ENTER.
Maximum power
adjusting screw
Minimum power
adjusting screw
46
MAXIMUM POWER ADJUSTMENT (P. HH)
- Turn the boiler OFF
- Select the parameter HH and wait for the boiler to come on
- Check that the maximum CO
paragraph "Checking combustion parameters", page 20)
corresponds with the values indicated in table 3.
If the CO
adjust the next parameter (LL - adjusting the minimum), if different
modify the value by turning the
maximum power adjustment screw with a screwdriver (clockwise
to decrease) until you obtain a value contained in table 3.
19
It is absolutely forbidden to set different gas types and/or boiler
powers from those indicated on the registration plate.
The manufacturer refuses any responsibility if the 2 parameters
are set at different values compared to those indicated on the
registration plate.
MAXIMUM NUMBER OF
FAN REVOLUTIONS
MINIMUM NUMBER OF
FAN REVOLUTIONS
proves to comply with the values in the table, proceed to
2
G20 G31
56 56 revs/min
G20 G31
14 14 revs/min
reading on the analyser (see
2