Bosch AD HP270-1, Руководство для техников послемарочного обслуживания

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Page 34 from 40 6720803522 AD HP270-1 2012/03 en
Pict.34 – Schematic representation of the recirculation loop
The recirculation is usually done between the storage tank and the latest tapping point.
Source Grundfos
Pict.35 – Example of an installation with recirculation
To avoid energy losses, it is very important to control the working time of the recirculation pump, to minimize
running costs and increase efficiency of system. The technician shall check which kind of pump shall be used in
this domestic hot water system (use only bronze or plastic pumps).
The control of the operation can be done:
- by a timer;
- by a thermostat;
HP