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Thank you Sir. I am more enlightened now. By the way, the expansion tank is located before the suction of the pump and where the chillers located.

Hi Sir LittleInch, I have attached the schematic of the system. i hope it would be a big help. Thankshttp://files.engineering.com/getfile.aspx?folder=7a703094-8aab-4753-bd02-f8205fbd34eb&file=schematic_diagram.pdf

thread403-406098 Hi Engr.'s. Kindly help me to this. I have a 145 psi water column, do i need to add the Total dynamic head of the pump for me to specify the final chiller holding pressure/pressure rating. Or i can specify directly a 150 psi chiller since it can tolerate the given 145 psi. i...

noted on this sir LittleInch. Thank you so mcuh.

Thank you Sir LittleInch.

Hi Guys, i have a question. Isn't it that in a close loop piping system is that we only consider the pipe and fitting loss + loss in chiller,fahu,ahu etc.? How about in a close loop with a secondary pumping system? Can we add the static lift (Height) or still negligible? Kindly see attached file...