Important - Beretta EXCLUSIVE GREEN HE C.S.I. Serie Manual Del Instalador Y Del Usuario

21 - MAINTENANCE
The appliance must be systematically controlled at regular inter-
vals to make sure it works correctly and effi ciently and conforms
to legislative provisions in force.
The frequency of controls depends on the conditions of installa-
tion and usage, it being anyhow necessary to have a complete
check carried out by authorized personnel from the Servicing
Centre every year.
• Check and compare the boiler's performance with the relative
specifi cations. Any cause of visible deterioration must be imme-
diately identifi ed and eliminated.
• Closely inspect the boiler for signs of damages or deterioration,
particularly with the drainage and aspiration system and electrical
apparatus.
• Check and adjust – where necessary – all the burner's parame-
ters.
The boiler is supplied with the settings shown in the table. But said values may be adjusted by following the graphs given here below,
depending on installation requirements or regional rules and regulations combusted gas emission limits.
190
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
2
6200
5800
5400
5000
4600
4200
3800
3400
3000
2600
2200
1800
1400
1000
2
Heat capacity curve – emissions (Qnrisc) – 25 HE
4 6 8 10
Heating heat capacity (kW)
Heat capacity curve – fan rpm (Qnrisc) – 25 HE
4 6 8 10
• Check and adjust – where necessary – the system's pressure.
• Analyze combustion. Compare results with the product's specifi -
cation. Any loss in performance must be identifi ed and corrected
by fi nding and eliminating the cause.
• Make sure the main heat exchanger is clean and free of any
residuals or obstruction.
• Check and clean – where necessary – the condensation tray to
make sure it works properly.
IMPORTANT: always switch off the power to the appliance and
close the gas by the gas cock on the boiler before carrying out
any maintenance and cleaning jobs on the boiler.
Do not clean the appliance or any latter part with fl ammable sub-
stances (e.g. petrol, alcohol, etc.).
Do not clean panelling, enamelled and plastic parts with paint
solvents.
Panels must be cleaned with ordinary soap and water only.
12 14 16
12 14 16
Heating heat capacity (kW)
18 20 22
18 20 22 24
ENGLISH
24 26
26
27