Viessmann VITOGAS - Page 41

Operating mode: Variable differential pressure
D
A
40
0
10
20
30
0
100
200
300
400
0 0.5 1.0 1.5 2.0 2.5
Pump rate in m³/h
Pressure drop/head mbar kPa
50500
60600
3.0 3.5 4.0
70700
Δp-V
max.
B
C
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
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
D
A
B
C
E
F
G
H
K
L
M
40
0
10
20
30
0
100
200
300
400
0 0.5 1.0 1.5 2.0 2.5
Pump rate in m³/h
Pressure drop/head mbar kPa
50500
60600
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
To hydraulically balance the heating circuit with mixer. Inserted into
the Divicon.
Overflow valve
Part no. 7429 738: R ¾
Part no. 7429 739: R 1
Part no. 7429 740: R 1¼
Only with manually controlled heating circuit pumps. Fitted onto the
Divicon.
Installation accessories
(cont.)
VITOGAS
VIESMANN
41
5822 428 GB
4