Vaillant flexoTHERM exclusive VWF 117/4 Installation And Maintenance Instructions Manual page 31

10.2.2 Remaining feed head of building circuit
pump
10.2.2.1 Remaining feed head for VWF 5x/4
building circuit pump at nominal flow
A
800
700
600
1
500
400
300
200
100
0
40 50 60
1 Air heat source
2 Ground heat source
3 Groundwater heat
source
10.2.2.2 Remaining feed head for VWF 8x/4
building circuit pump at nominal flow
A
800
700
600
1
500
400
300
200
100
0
40 50 60
1 Air heat source
2 Ground heat source
3 Groundwater heat
source
0020213394_01 flexoTHERM exclusive Installation and maintenance instructions
Adapting the unit to the heating installation 10
2
3
70 80 90 100
A Remaining feed head in
hPa (mbar)
B Pump output in %
2
3
70 80 90 100
A Remaining feed head in
hPa (mbar)
B Pump output in %
10.2.2.3 Remaining feed head for VWF 11x/4
building circuit pump at nominal flow
A
800
700
600
1
500
400
300
200
100
0
40 50
B
1 Air heat source
2 Ground heat source
3 Groundwater heat
source
10.2.2.4 Remaining feed head for VWF 15x/4
building circuit pump at nominal flow
A
900
800
700
600
500
1
400
300
200
100
0
40 50
B
1 Air heat source
2 Ground heat source
3 Groundwater heat
source
2
3
60 70 80 90
A Remaining feed head in
hPa (mbar)
B Pump output in %
2
3
60 70 80 90
A Remaining feed head in
hPa (mbar)
B Pump output in %
B
100
B
100
31