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Residual head of circulator
The residual head for the heating system is
represented in graph 1, according to the low
rate. The piping on the heating system must be
sized taking into account the available residual
head value.
graph1
6-metre circulator (as
standard)
graph 2
7-metre circulator
(optional)
graph 3
5-metre circulator
(optional)
graph 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
700
650
600
550
500
450
400
350
300
250
200
150
100
50
0
0
100
200
300
400
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)
500
600
700
800
900
1000
Flow rate (l/h)
500
600
700
800
900
Flow rate (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 low
rate into the heat exchanger is correct under any
installation conditions.
1000
1100
1200
1100
1200
1300
1000
1100
1200
800
900
1000
EXCLUSIVE
4
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