Viessmann VITODENS 242-F Technical Manual page 10

Vitodens 222-F, type FS2B
Vitodens 222-F, 8.8 - 35.0 kW
40 400
1
350
30 300
250
20 200
150
10 100
50
0 0
0 100
Flow rate in l/h
A Stage 1
B Stage 2
C Upper operational limit
Variable speed heating circuit pump in the Vitodens 222-F
The integral circulation pump is a highly efficient DC pump with sub-
stantially lower power consumption than conventional pumps.
The pump speed and consequently the pump rate is regulated subject
to the outside temperature and the switching times for heating or
reduced mode. The control unit transmits the current default speed via
an internal data BUS to the circulation pump.
Individually match the minimum and maximum speed plus the speed
for reduced mode to the existing heating system using the control unit
codes.
In the delivered condition, the minimum pump rate (coding address
"E7") is set to 30 %. The maximum pump rate (coding address "E6")
is set to the following values:
Rated output range in kW
4.8-19
6.5-26
8.8-35
VIESMANN
10
(cont.)
200 300 400 500 600
Speed settings in the
delivered condition in %
A
700 800 900 1000
Circulation pump VI UPM-15-70 KM
Rated voltage
Power consumption max.
min.
Power consumption in
the delivered condition
- 4.8-19 kW
- 6.5-26 kW
- 8.8-35 kW
55
65
65
C
B
1100 1200 1300 1400
V~ 230
W 70
W
W 27
W 37
W 37
VITODENS
6