Water Circuit; Pumps - Riello ALU PRO power Series Instructions For The Installer And The Technical Assistance Centre

WATER CIRCUIT

2
4
3
1 Gas inlet collector
2 Burner assembly
3 Combustion chamber
4 Heat exchange element
5 Flue gas box
6 Flue gas outlet fitting
7 Boiler filling/draining tap

PUMPS

Select a pump that is compatible with the water resistor of the boiler and the system.
The illustration below shows the resistor characteristics.
350
300
250
200
150
100
50
0
0
b
At first start-up, and at least once a year, the ro-
tation of the circulator shaft should be checked,
especially after long periods of not being operat-
ed, since deposits and/or residues could impede it
from rotating freely.
12
GENERAL
9 9
115-150
5 10
9
8 Condensate discharge syphon
9 Automatic venting valve
SF
System flow
SR System return
Gas Fuel supply
Sc
Discharge
225
15 20 25
Portata (m /h)
3
Output (m3/h)
b
Before loosening or removing the circulator cap,
protect the electric devices located underneath
from any water that might come out.
a
Never operate the pumps without water.
1
9
7
8
300 349-375 450 525
30 35
GAS
GAS
MI
RI
6
5
Sc
600
40