Biasi Riva Plus Combi Installation & Operation Instructions page 32

14. Piping Cont.
14.1 Primary – Secondary Piping:
All external piping components are to be supplied by the installer.
It is very important to use an hydraulic separator before secondary circulators.
All external piping components are to be supplied by the installer.
It is very important to use a hydraulic separator before secondary circulators.
Figure 14.3
32 RIVA PLUS COMBI MANUAL