4 Systems
61 different hydraulic schematics are available.
The systems can be configured both as primary and secondary systems. The fundamental hy-
draulic differences between a primary and a secondary system are illustrated in Fig. 3.
4
1. A mixing valve replaces the heat exchanger in the heating/DHW circuit
4
2. A storage tank charging pump replaces the primary solenoid/thermoelectric valve
The controller settings do not have to be changed.
EB 5579 EN 29
Systems
BE
BA
AE
AA
BE
BA
AE
AA
RüF1 VF1UP1RK1/Y1 RK1/Y1RF1 VF1UP1 RüF1 RF1
BE
BA
AE
AA
WW
KW
SF1SLP
BE
BA
AE
AA
WW
KW
SF1SLP
1.
Primary system
Secondary system
Primary system
2.
Secondary system
Fig. 3 · Differences between primary and secondary systems