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Thread: walk-in cooler

  1. #1
    champy22's Avatar
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    walk-in cooler



    need help on r-22 walk-in cooler, new tev,compressor low side 70# high side165# will not take anymore refrigerant. low side is cold to touch &sweaty high side is slightly hot. can see refrigerant flashing. please help



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    Re: walk-in cooler

    Quote Originally Posted by champy22 View Post
    need help on r-22 walk-in cooler, new tev,compressor low side 70# high side165# will not take anymore refrigerant. low side is cold to touch &sweaty high side is slightly hot. can see refrigerant flashing. please help
    What is evaporator air in and air out temperature when you measured this pressures?
    What is condenser type (water,air?)?
    What are condenser water/air in and out temperatures?
    What are evaporator and total superheat and condenser subcooling readings?
    What is discharge pipe temperature?
    Why are you changed TEV?
    Did you changed factory setting of TEV?

  3. #3
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    Brian_UK is offline Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: walk-in cooler

    Is the room down to temperature yet?

    Pressures need to be related to temperature to be of any use.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

  4. #4
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    Re: walk-in cooler

    the cooler never came down in temp. i'm afraid the tev maybe sized wrong. this is an air condenser unit. i will take temps on evaporator&condenser along withpiping temps. thanks brian

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    Re: walk-in cooler

    If all who ask for answers to problems associated with the refrigeration portion of a system would give us the following information I believe our answers would be better able to help them so in the future why don't we insist on the following readings
    Discharge Pressure
    Suction Pressure
    Discharge Temperature
    Superheat at compressor
    Super heat at Evaporator
    Sub cooling
    Amp Reading
    Tonnage(BTU, KW)
    Now we have something to work with!

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    Re: walk-in cooler

    We keep trying Wambat, but it is a head against brick wall exercise I'm afraid
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

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    Re: walk-in cooler

    Quote Originally Posted by Brian_UK View Post
    We keep trying Wambat, but it is a head against brick wall exercise I'm afraid
    Why can't the site post these instructions on the home page and refer the client to them when posting? It seems to me that it would be a win-win situation for us and for the posters. This is a minimum of what they should be checking before asking for help. If the clients were given guidelines I believe we could do a better job in helping them
    It's worth a try

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    Re: walk-in cooler

    Quote Originally Posted by wambat View Post
    Why can't the site post these instructions on the home page and refer the client to them when posting? It seems to me that it would be a win-win situation for us and for the posters. This is a minimum of what they should be checking before asking for help. If the clients were given guidelines I believe we could do a better job in helping them
    It's worth a try
    If posters are able to do thorough survey of system, then many of them probably would have a clue what is wrong with it in first place.

    Most of the time, after asking question here, they return and do measurements as asked here.

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    Re: walk-in cooler

    I agree we should have those as email signatures

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    Re: walk-in cooler

    Quote Originally Posted by karim View Post
    I agree we should have those as email signatures
    Yeh Karim, you realise this thread is several years old.., however better late then never... lucky nike123 is still around to see your response!!. Good to hear from you.
    To the optimist, the glass is half full. To the pessimist, the glass is half empty.

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