REMEHA Quinta 115 Technical Information page 41

Flow and return header installation
A flow and return header installation is shown in Fig. 11. The separated hydraulic
groupes have system pumps, controlled by a cascade controller.
The controller monitors the conditions from each group and varies the heat output to
suit the demand. Because of the modulating boiler operation it runs most efficient. In
this type of installation you can use the heat output for DHW production and HTG at
the same time.
For further installation examples please ask Broag for the booklet; "Suggested
schematics with power and control wiring details".
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Fig. 11 A flow and return header installation with weather compensating controller
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