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Inefficient compressor

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Paul S_3
Paul S_3 Member Posts: 1,261
in A-C, Heat Pumps & Refrigeration
What are the signs of a imefficient compressor??
ASM Mechanical Company
Located in Staten Island NY
Servicing all 5 boroughs of NYC.
347-692-4777
ASMMECHANICALCORP@GMAIL.COM
ASMHVACNYC.COM
https://heatinghelp.com/find-a-contractor/detail/asm-mechanical-company

Comments

  • JStar
    JStar Member Posts: 2,752
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    Typically.

    Abnormally high suction, and low discharge. The compression ratio will be very low.



    If you suspect a weak compressor, you should pump down the unit to a low number on the suction side and watch the gauge for any movement. If a valve is bad, the pressure will feed back and the low side will rise.
  • Techman
    Techman Member Posts: 2,144
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    Inefficient comp

    The leaking back of hi press to the low side is true w/ leaking/bad discharge reeds . What about bad/leaking suction reeds?Is this a scroll or a recip comp?
  • Del
    Del Member Posts: 52
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    scrolls

    I've been told not to pump down using scroll compressors. 
  • Techman
    Techman Member Posts: 2,144
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    Scroll pumpdown

    Sure you can!!!!!!!!!!!!!!!!!!Been doing it for years ,20 -25 or so that is!
  • don_9
    don_9 Member Posts: 395
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    scroll pumpdown

    You can pump down a scroll as long s you do not pump it down into a vaccum.I herd if you pump it down into a vaccum it could arc and cause a burnout.
  • Techman
    Techman Member Posts: 2,144
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    Scroll pumpdown

    There is a trick to a Scroll pumpdown,though!Out of the "box" a Scroll cannot be used on a pumpdown.
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