When is it supply, when is it return?
When is it supply, when is it return?
(OP)
My question is regarding hydronic heating and cooling systems.
Is there a standard that states when a pipe is considered 'supply' or when it is considered 'return'?
Does pressure determine tagging, or does temperature?
It's fairly easy in the space to determine supply and return, but in the mechanical room I end up flip flopping my tagging: Supply from what, return to what: the pumps or the boiler/chiller?
Just wondering what other people use as a design standard.
Is there a standard that states when a pipe is considered 'supply' or when it is considered 'return'?
Does pressure determine tagging, or does temperature?
It's fairly easy in the space to determine supply and return, but in the mechanical room I end up flip flopping my tagging: Supply from what, return to what: the pumps or the boiler/chiller?
Just wondering what other people use as a design standard.





RE: When is it supply, when is it return?
RE: When is it supply, when is it return?
RE: When is it supply, when is it return?
Entering the boiler - All piping leading to his would be return.
Leaving the boiler - All piping leaving is supply.
I hope this doesn't sound too elementary or stupid, but does the flip flop occur when you are looking at or thinking about the suction and discharge of the pumps?
RE: When is it supply, when is it return?
Take the "V" out of HVAC and you are left with a HAC(k) job.