Variable speed heating circuit pump in the Vitodens 222-F
The integral circulation pump is a highly efficient pump with substan-
tially lower power consumption than conventional pumps.
The pump speed and consequently the pump rate are regulated sub-
ject to the outside temperature and the switching times for heating
mode or reduced mode. The control unit transmits the current speed
specifications to the circulation pump via a PWM signal.
The min. and max. speeds and the speed for reduced mode can be
matched to the existing heating system via parameters at the control
unit.
Setting (%) in the heating circuit 1 group:
■ Min. speed: Parameter 1102.0
■ Max. speed: Parameter 1102.1
■ In the delivered condition, the minimum pump rate and the maxi-
mum pump rate are set to the following values:
Rated heating output in kW
Speed settings in the deliv-
ered condition in %
Min. pump rate Max. pump
rate
19
65
80
25
65
100
32
60
100
■ In conjunction with a low loss header, heating water buffer cylinder
and heating circuits with mixer, the internal circulation pump runs
at a constant speed.
Specification – circulation pump
Rated heating output
kW
19
25
32
Circulation pump
Type
UPM3
15-60
UPM3
15-60
UPM3
15-75
Rated voltage
V~
230
230
230
Power consumption
– Max.
W
42
42
60
– Min.
W
2
2
2
– Delivered condition
W
28.1
42
60
Energy efficiency class
A
A
A
Energy efficiency index (EEI)
≤ 0.20
≤ 0.20
≤ 0.20
Residual head of integral circulation pump
Rated heating output 19 to 25 kW
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
550 55
A
B
C
D
E
K
L
F
G
H
M
M
Upper operational limit (integral bypass opens)
Vitodens 222-F, type B2TE
(cont.)
VITODENS
VIESMANN
37
5853906
4
Содержание Vitodens 200-W B2HE
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