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Purging a system with a buffer tank
I am pretty much trying to build the system shown in figure 6-1b in Idronics 17
, minus the indirect water heater.
Caleffi also has a similar design in the documentation for their storage tanks
My question is, how the heck do you purge the primary pump and furnace? It seems like there needs to be a purge valve between the air separator and the buffer tank, no?