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Type: Posts; User: botija_99

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  1. I second that with little information. I am also...

    I second that with little information.
    I am also confused with the sub cooling numbers first low and then high.
    We definitely need more data:
    Pressures
    Temperatures
    subcooling
    Super heat...
  2. Wrightsoft if you know how to use it, they have...

    Wrightsoft if you know how to use it, they have classes available but it’s expensive.
  3. Grainger is expensive unless you need it right...

    Grainger is expensive unless you need it right away and they have it available.
  4. Right!, clean and free of foreign objects. Most...

    Right!, clean and free of foreign objects.
    Most of the time are plastic foil sucked in the evaporator.
    It’s scary when happens in a walk in freezer with electric defrost!
  5. Replies
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    1,222

    I have the testo 320, so far so good. For smoke...

    I have the testo 320, so far so good.
    For smoke I still have the paper strip method.
  6. PSC motors for now. I went to an ECM motor...

    PSC motors for now.
    I went to an ECM motor training and asked what was the ROI on the new motors and the “expert” couldn’t tell me.
    With the price of a new one and low reliability I’ll go with PSC
  7. Replies
    5
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    471

    Also Screw compressors in a Chiller are very...

    Also Screw compressors in a Chiller are very sensitive to suden discharge pressure variation, I had oil issues with process chillers that have to run year round, specially with across the line...
  8. Replies
    33
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    15,963

    Thank You guys for the inputs, is good to know...

    Thank You guys for the inputs, is good to know that there are not big issues with it, but like DeltaT said there is always tomorrow. Be safe!
  9. Replies
    33
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    15,963

    R-414B (Hot Shot)

    I was talking with Copeland today and they said that they do not recommend Hot Shot for R-12 replacement because of it flammability, they do recommend R-409A, I checked the MSDS of each Refrigerant...
  10. I agree. The more you know the better for your...

    I agree. The more you know the better for your career. I've worked with all kinds of equipments in the food industry, Combi ovens, tilt skillets, blast chillers, etc. You have to be up for the...
  11. Replies
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    9,202

    I never leak test with pressures above the low...

    I never leak test with pressures above the low side design pressure. Nitrogen with a trace of R22, Sniffer and confirm the leak with bubbles, that's the way to go.
  12. Replies
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    30,185

    I use VIZI Vapr, it works great!

    I use VIZI Vapr, it works great!
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