Viessmann VITODENS 200-W Technical Manual page 23

Installation accessories
Wilo Stratos Para 25/1-7
■ Very economical HE pump (compliant with Energy Label A)
Operating mode: Constant differential pressure
700 70
600 60
500
50
400 40
300
30
200 20
100 10
A
0 0
0.5 1.0 1.5 2.0 2.5
0
Flow rate in m³/h
A Divicon R 1¼ with mixer
B Divicon R 1¼ without mixer
Operating mode: Variable differential pressure
700 70
600 60
500
50
400
40
300
30
200 20
100 10
0 0
0.5 1.0 1.5 2.0 2.5
0
Flow rate in m³/h
A Divicon R 1¼ with mixer
B Divicon R 1¼ without mixer
VITODENS 200-W
(cont.)
B
3.0 3.5 4.0
A
B
3.0 3.5 4.0
Grundfos Alpha 2-60
■ Very economical HE pump (compliant with Energy Label A)
■ With power consumption display
■ With Autoadapt function (automatic matching to the pipework)
■ With night setback function
600 60
500 50
M
400 40
L
300 30
200 20
K
H
100 10
E
A
0 0
0 0.5 1.0
Pump rate in m³/h
A Divicon R ¾ with mixer
B Divicon R 1 with mixer
C Divicon R 1¼ with mixer
D Divicon R ¾, R 1 and R 1¼ without mixer
E Stage 1
F Stage 2
G Stage 3
H Min. proportional pressure
K Max. proportional pressure
L Min. constant pressure
M Max. constant pressure
Bypass valve
Part no. 7464 889
For hydraulic balancing of the heating circuit with mixer. To be inserted
into the Divicon.
G
F
C
B
D
1.5 2.0 2.5
VIESMANN
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