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  1. #27
    Join Date
    Jun 2018
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    10
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    Thread Starter
    Quote Originally Posted by crazzycajun View Post
    Then don’t screw with it put food in it and hope for the best.
    But the valve is to prolong life of compressor, not temperature regulation.

  2. #28
    Join Date
    Aug 2008
    Location
    Burlington , Mass
    Posts
    525
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    The CPR only comes in to play after a defrost cycle, has nothing to do with regulating the coil temp
    I'll be there when I get there and not a minute later

  3. #29
    Join Date
    Jul 2001
    Location
    Gold Coast of Connecticut
    Posts
    4,870
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    Quote Originally Posted by jimpad View Post
    I'm having some problems with my new to me freezer. I had a tech out and he didn't seem to know much but added a little freon. After he left I noticed evap was frozen, defrosted for 20 mins and it seems to be doing better... it's at 10 degf after 8 hours. In going over this thing i'm mystified my the device in the picture... it's at a elbow on the return line... there's a threaded cover and under the cover is a allen screw adjustment? What does it do?Attachment 800847
    Crankcase pressure regulator. CPR


    Sent from my Pixel XL using Tapatalk
    Aire Serv of SW Connecticut- Gas heat, dual fuel and central a/c systems installed and serviced

  4. #30
    Join Date
    Jun 2018
    Posts
    10
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    Thread Starter
    So, does anyone here know the consequences of too light a spring pressure?

  5. #31
    Join Date
    Jun 2018
    Posts
    10
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    Thread Starter
    So I called Sporlan and they see no consequences other than possible chatter which can be adjusted by tightening spring till chatter stops. Now I'm guessing a few guys here know way more than Sporlan... what's your take?

  6. #32
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    6,180
    Post Likes
    Sounds like you've got it figured out.

  7. #33
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
    15,034
    Post Likes
    Quote Originally Posted by jimpad View Post
    So I called Sporlan and they see no consequences other than possible chatter which can be adjusted by tightening spring till chatter stops. Now I'm guessing a few guys here know way more than Sporlan... what's your take?
    Do it!

  8. #34
    Join Date
    Jan 2004
    Location
    PA
    Posts
    75,101
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    Quote Originally Posted by jimpad View Post
    So I called Sporlan and they see no consequences other than possible chatter which can be adjusted by tightening spring till chatter stops. Now I'm guessing a few guys here know way more than Sporlan... what's your take?
    A. Its sole purpose is to protect the compressor. Miss-adjustment can cause compressor problems. Found out the hard way back in my early days.

    B. Sorry, this is not a DIY site. Thread closed.
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