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EnergyProfessional, please see the attached. I think you were looking for this paper in your earlier comments "I swear I saw a Trane Engineer Newsletter where they compared EG vs. PG systems and had examples of the added pump energy for chilled water. But I can't find it right...

Thank you Dik,

Tanks ProcessHVAC, May I ask which area are you in? my project is in Toronto.

Hi, Anyone knows to review the existing fuel tank compliance with standard, Which CSA B139 is applicable? Latest CSA B139-19 or the standard at the time of installation eg. CSA B139-06?

Hi, Anyone knows to review the existing fuel tank compliance with standard, Which CSA B139 is applicable? Latest CSA B139-19 or the stanandard of the time of installation eg. CSA B139-06?

Thank you all for your responses. mzgh

shouldn't we have trap and control valve in series after heat exchanger? or only control valve? Thanks, mzgh

Thanks, just one more question. what if control valve fails. In first method (control valve on the steam supply side) control valve fails closed. what about second method?

ofcourse that in both cases, steam control or condensate control, control valve is controlled by hot water supply temperature.

Hi, Like you when I heard about this , it was strange for me to install control valve on condensate line after heat exchanger. in all application I have seen control valve on steam supply line to heat exchanger. one of the supplier introduced this system that a control valve is installed on...

Does anyone have experience with control valve on condensate line before steam trap for steam to water heat exchanger application?