Biasi Riva Combi Installation & Operation Instructions page 34

Wall hung gas boiler for central heating and domestic hot water 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 a hydraulic separator before secondary circulators.

Biasi Riva

Combi

Boiler

Boiler Return

Hydraulic

Separator

Boiler Supply

Air Elimination

Secondary

Circulators

Backflow Preventor

and

Pressure Reducing

Valve

RIVA COMBI MANUAL - REV B

Zone Valves

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