Beretta Exclusive Green HE 25 B.S.I. Installer And User Manual page 22

EXCLUSIVE BOILER GREEN HE B.S.I.
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.
- 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
the boiler in the OFF position. To do this, press the
seconds, the value is discarded and returns to the previously
set one.
Press and hold down the operating mode button and the
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.
Turn the domestic hot water selector to sequentially scroll the
- 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)
external sensor is connected)
- LP minimum fan speed (do not modify this parameter)
- LL boiler at minimum power
- MM fan ignition speed (do not modify this parameter)
- 23 maximum heating adjustment possibility
- 24 minimum heating adjustment possibility.
- 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,
- Turn the sanitary water temperature selector in order to adjust
the set value
The value indicated on the display is expressed in revs min/100
(example 3600 = 36).
The value set during this o
maximum value of parameter 23.
22
A
button
button acts
button
- 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,
- Turn the sanitary water temperature selector in order to adjust the
set value
The value indicated on the display is expressed in revs min/100
(example 3600 = 36).
mum value of parameter 24.
- 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 (25
- Turn the boiler OFF
- Check that the maximum CO
the values indicated in
If the CO proves to comply with the values in the table, proceed to
2
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 .
CO
2
Maximum power
adjusting screw
Minimum power
adjusting screw
47
60 60 revs/min
60 59 revs/min
12 19 revs/min
12 19 revs/min
3300 revs/min (35
reading on the analyser (see
2
.
9 10 %
9 10 %
-