Skeleton Diagrams; Shunt Pump - REMEHA Calenta 25s Installation And Service Manual

3. Technical description
1
2
1
2
3
4 5
700
10 kW
615
600
545
500
435
400
300
295
200
100
0
0 200 400 600
437 623
16
4
3
R000124-A
9
8
6 7
T001874-A
15 kW
20 kW
25 kW
800 1000 1200
Q (l/h)
830 1037
T002537-B
3.3.9.

Skeleton Diagrams

Calenta 25s - 35s
Heat exchanger (Central heating)
1
Heating flow
2
Heating return
3
Shunt pump (Central heating)
4
Calenta 28c - 40c
Heat exchanger (Central heating)
1
Hydroblock
2
Plate heat exchanger (DHW)
3
Heating flow
4
Domestic hot water outlet
5
Domestic cold water inlet
6
Heating return
7
3-way valve
8
Shunt pump (Central heating)
9
3.3.10.

Shunt pump

The boiler is equipped with a circulating pump. This energy-efficient,
modulating circulating pump is controlled by the control unit based on
ΔT. The graph shows the manometric height at various outputs.
Calenta 25s - 28c
Manometric height central heating circuit
H
Water flow
Q
Calenta 25s - 28c - 35s - 40c
040412 - 7600585-01