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  • Users: Jeff1988
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  1. Jeff1988

    Why my close-loop CHW pipework has 87 psi close to the highest point?

    Hello ladies & gents, I'm tendering on a mechanical plumbing job for this building with the air-cooled chillers & all other equipment located on rooftop. My client's engineer told me "the required test pressure on the roof will be approx. 925kPa". Considering we test 1.5 times of working...

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