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  1. 23-09-2010, 09:45 AM #6
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    nike123
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    Re: Liebert vacuum testing

    Quote Originally Posted by sumsor View Post
    Hi Guesstimator,

    160 psi sounds a bit light for a pressure test. What refrigerant are the units running on?
    I usually test R410a systems with 550 to 600 psi for at least 24hrs, better 48.

    sumsor
    You cannot exceed system design pressure for long time.
    Some components are not designed to withstand highest pressure of system. As you know, compressors are usually having stated low and high pressure which cannot be exceeded. Sometimes, for example, low side cannot bare more than 11Bar (160 PSIG) of pressure.
    Last edited by nike123; 23-09-2010 at 10:08 AM.
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