Beretta EXCLUSIVE GREEN HE 25 B.S.I. Installer And User Manual page 13

Switching on
Switch on the boiler as follows:
- access the gas tap through the slots in the cover located in the
lower part of the boiler
- open the gas tap by turning it anti-clockwise (fi g. 16)
- power the boiler.
open
position
16
Each time the power supply is switched on the boiler carries out
an automatic venting cycle that lasts about 2 minutes. The display
reads "SF" (fi g. 17) and the "function selectors"
sequence. Press the
venting cycle.
If the check is concluded correctly, once the automatic venting cycle
has been completed the boiler is ready to work.
17
The boiler turns on in the status it was in before it was switched
off: if the boiler was in the winter mode when it was switched
off, it will turn on again in the winter mode. If it was in the OFF
mode, the display will show two segments in the central area
(fi g. 18). Press the button to enable operation.
18
Choose the desired operating mode by pressing
until the symbol moves to:
WINTER
SUMMER
WINTER function (fi g. 19)
With the selector in this position, the boiler provides hot water for
the heating and provides water to the water tank to allow domestic
hot water preparation. Function S.A.R.A is enabled in this position
(see chapter "Boiler functions").
19
SUMMER function (fi g. 20)
With the selector in this position, the boiler provides water to the
water tank with a temperature stabiliser to allow domestic hot water
preparation.
light up in
button to interrupt the automatic
button,
EXCLUSIVE BOILER GREEN HE B.S.I.
20
Adjusting heating water temperature
Turning the selector A (fi g. 21), after having positioned the selector
mode on winter , it is possible to regulate the heating water
temperature.
A
21
Turn clockwise to increase the temperature and anticlockwise to
decrease. The bar segments light up (every 5°C) as the temperature
is increased. The selected temperature value appears on the display.
Adjusting heating water temperature with an external sensor
connected
When an external probe is connected, the value of the delivery
temperature is automatically chosen by the system which rapidly
adjusts ambient temperature to the changes in external temperature.
Just the central segment of the bar is illuminated (fi g. 22).
To increase or decrease the temperature with respect to the value
automatically calculated by the electronic board, turn the heating
water selector clockwise to increase and anticlockwise to decrease.
The bar segments light up (at every comfort level), correction toler-
ance lies between - 5 and + 5 comfort levels (fi g. 22). When choosing
the level of comfort, the digit area of the display shows the required
level of comfort while the bar shows the matching segment (fi g. 23).
°C
+ 4/5
+ 3
+ 2
+ 1
0
- 1
- 2
- 3
- 4/5
22
23
Adjusting domestic hot water temperature
To adjust domestic hot water temperature storaged in the water
tank, turn switch B (fi g. 24) clockwise to increase and anticlock-
wise to decrease. The bar segments light up (every 3°C) as the
temperature is increased.
The selected temperature value appears on the display.
When choosing the temperature, both for heating and domestic
hot water, the display shows the value being selected.
seconds after the selection has been made, the modifi cation is
memorised and the display returns to the delivery temperature
read by the probe. .
. About 4
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