Viessmann VITODENS 242-F Technical Manual page 16

Vitodens 222-F, type B2SA
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 or
reduced mode. The control unit transmits the current default settings
to the circulation pump via an internal data BUS.
The min. and max. speed and the speed in reduced mode can be
adjusted at the control unit on the existing heating system by using
codes.
In the delivered condition, the minimum pump rate (coding address
"E7") and the maximum pump rate (coding address "E6") are set to
2
the following values:
Rated heating output range in
kW
3.2-13
3.2-19
5.2-26
Residual head of the integral circulation pump
Vitodens 222-F, 3.2-19 kW
500
50
450
L
400 40
K
350
H
300 30
G
250
E
200 20
D
150
C
B
100 10
A
50
0 0
0 100
Flow rate in l/h
M Upper operational limit
VIESMANN
16
(cont.)
Speed settings in the delivered
condition in %
Min. pump rate Max. pump
rate
20
20
30
F
200 300 400 500
Specification – circulation pump
Rated heating output
Circulation pump
Rated voltage
Power consumption
– Max.
– Min.
– Delivered condition
55
65
65
600 700 800 900
kW 3.2-13 3.2-19
Type UPM2 UPM2
15-50 15-50
V~ 230 230
W 37 37
W 6 6
W 20 25
M
1000 1100 1200
VITODENS
5.2-26
UPM2
15-70
230
70
6
35