43
Speed
in
%
100
+20
-20
Outside temperature in °C
-30
+30
Min
Max
Fig. 27
Setting (%) in system configuration. See page 56.
■
In the delivered condition, the minimum pump rate
and the maximum pump rate are set to the following
values:
Rated heating output
in kW
Speed settings in the de-
livered condition in %
Min. pump
rate
Max. pump
rate
11
40
60
19
40
65
25
40
75
32
40
100
■
In the following system conditions, the internal circu-
lation pump is operated at a constant speed:
–
Low loss header or heating water buffer cylinder
and heating circuits with mixer
–
Constant operation
Residual head of integral circulation pump
Residual
head
0 kPa
0
200
400
600
800
1000
Flow rate in l/h
100
200
300
400
0
10
20
30
40
500 50
mbar
1200
100
300
500
700
900
1100
5
50
150 15
250 25
350 35
450 45
M
600
550 55
60
1300 1400
A
B
C
D
E
F
G
H
L
K
Fig. 28
M
Upper operational limit
Commissioning, inspection, maintenance
Adjusting pump rate of integral circulation pump
(cont.)
6167586
