Beretta EXCLUSIVE C Installer And User Manual page 43

[EN] - Residual head of circulator
The residual head for the heating system is
represented in graphic 1, according to the flow
rate. The piping on the heating system must be
sized taking into account the available residual
head value.
graphic 1
6-metre circulator (as
standard)
graphic 2
7-metre circulator
(optional)
graphic 3
5-metre circulator
(optional)
graphic 4
4-metre circulator
(optional)
Bear in mind that the boiler will operate correctly
if there is sufficient water circulation in the heat
exchanger.
600
550
500
450
400
350
300
250
200
150
100
50
0
0 100 200 300 400
Prevalenza residua disponibile all'impianto circolatori UPM3 ZB 15-70 e FLEX AS 7m
[codd. 20091499 - 20091500/1/2 impostati a 7 m]
700
650
600
550
500
450
400
350
300
250
200
150
100
50
0
0 100 200 300 400
Prevalenza residua disponibile all'impianto circolatori UPM3 ZB 15-50 e FLEX AS 5m
[codd. 20087320 e 20091499 - 20091500/1/2 impostati a 5 m]
-
500
450
400
350
300
250
200
150
100
50
0
0 100 200 300 400
400
350
300
250
200
150
100
50
0
0 100 200 300
500 600 700 800 900
Flow rate (l/h)
Portata impianto (l/h)
500 600 700 800 900 1000
Flow rate (l/h) Portata impianto [l/h]
500 600 700 800 900
Flow rate (l/h)
Portata impianto [l/h]
400 500 600 700
Flow rate (l/h)
To this end, the boiler is fitted with an automatic
by-pass which is designed to ensure water flow
rate into the heat exchanger is correct under any
installation conditions.
1000 1100 1200
1100 1200 1300
1000 1100 1200
800 900 1000
EXCLUSIVE
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