Viessmann VITOLADENS 300-W Technical Manual page 39

Installation accessories
Operating mode: Variable differential pressure
700 70
600 60
500 50
400 40
300 30
200 20
100 10
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
Grundfos Alpha 2-60
■ Very economical HE pump (in accordance with Energy Label A)
■ with power consumption indication
■ 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
VITOLADENS 300-W/VITOLADENS 333-F
(cont.)
C
B
D
1.5 2.0 2.5 3.0
C Divicon R 1¼ with mixer
D Divicon R ¾, R 1 and R 1¼ without 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
G
F
C
B
D
1.5 2.0 2.5
3.5 4.0
4
VIESMANN
39