9.4 Performance curves
220H - 16 plates
Heating side (primary)
DI0000149
0,8
0,7
0,6
0,5
0,4
0,3
0,2
0,1
0,0
100 200
300 400
500
600 700
800 900 1000 1,100 1,200
Y
Z
X
A
B
C
D
E
F
G
H
Item
Description
X
Primary heating demand in litres/hour (l/h)
Y
Pressure loss in bar
Z
Max range
Item
Description
A
HIU with strainer, differential pressure regulator and
TWB - kvs = 1,18
B
HIU with strainer, including TWB - kvs = 1,30
C
HIU without strainer including differential pressure
regulator and TWB - kvs = 1,26
D
HIU with strainer and differential pressure regulator -
kvs = 1,34
E
HIU without strainer including TWB - kvs = 1,40
F
HIU without strainer - kvs = 1,52
G
HIU without strainer including differential pressure
regulator - kvs = 1,46
H
HIU without strainer - kvs = 1,70
Pressure losses including ball valve. Additional pressure losses, e.g.
heatmeter with
Qn 1.5
of approximately
0.05 bar
and other internal/
external fixtures must be added.
Domestic hot water side (secondary)
DI0000152
0,8
0,7
0,6
0,5
0,4
0,3
0,2
0,1
0,0
0,9
1,0
1,1
1,2
1,3
1,4
1,5
1,6
1,7
1,8
1,9
2,0
10
15
20
25
5
Y
Z
X
A
B
Item
Description
X
Tapping capacity in litres/minute (l/min)
Y
Pressure loss in bar
Z
Max range
Item
Description
A
HIU without strainer, without throttle disc, including
TWB - kvs = 1,06
B
HIU without strainer, without throttle disc - kvs = 1,12
Pressure losses at the throttle disc must be added to the calculation.
•
10 l/min = 0.65 - 0.85 bar
•
12 l/min = 0.68 - 0.88 bar
•
15 l/min = 0.70 - 0.90 bar
•
17 l/min = 0.75 - 0.95 bar
•
19 l/min = 1.00 - 1.20 bar
20
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Combi Port XS
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Installation and operation manual
