Operating and Installation Manual for Solar Module VR 68 0020054784_0010
4.3 Hydraulic diagram 3
– a wall-mounted boiler
– an uncontrolled heating circuit
– a solar circuit
– a bivalent solar hot water cylinder
– reheating of bivalent solar hot water cylinder using
preference switching valve (VUV)
– circulation pump for hot water controlled by VR 40
– a legionella protection pump
– 3-way changeover valve for heating a swimming pool
using solar energy
h
Note!
Observe that the specific configuration which is
necessary for hydraulic diagram 3 can be
carried out with the aid of the installation
assistant (also see Chapter 7.1):
The "2nd cylinder" option must be selected
under "MF relay" on display screen A4.
4 Incorporation of the VR 68 into the solar heating system
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