Biasi Riva Advance Combi Installation & Operation Instructions page 40

Wall hung gas boiler for central heating supply
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14. Piping Cont.
14.2 Primary – Secondary Piping with Zone Valves:
All external piping components are to be supplied by the installer.
It is very important to use primary secondary piping or hydraulic separator before secondary
circulators.
Figure 14.4
RIVA ADVANCE COMBI MANUAL
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