Viessmann VITODENS 222-F Technical Manual page 16

Vitodens 222-F, type B2SB
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 using codes at the control unit of the existing heating sys-
tem.
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 in kW
13
19
26
VIESMANN
16
(cont.)
Speed settings in the delivered
condition in %
Min. pump rate Max. pump
rate
45
45
45
Note
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. The speed can be adjusted subject to demand by
changing the code at the control unit.
Specification circulation pump
Rated heating output
Circulation pump
Rated voltage
Power consumption
– Max.
– Min.
– Factory setting
Energy efficiency class
60
65
80
kW 13 19
Type UPM3 UPM3
15-75 15-75
V~ 230 230
W 60 60
W 2 2
W 12 20
A A
VITODENS
26
UPM3
15-75
230
60
2
38
A