This was a service call on a walk in freezer that was temping too warm, i found that the temperature controller was going bad along with the pressure controller. I got the unit operating temporarily and the customer opted to replace the equipment rather than repair it.
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45 thoughts on “WALK IN FREEZER TOO WARM

  1. Andrew Mattas says:

    Have you ever thought of using digital temp controller like a carel or dixell for freezers and cool rooms? In Australia you never see Time clocks and mechanical tstats anymore. It’s like America is 20 years behind

  2. Apprentice Phil says:

    This is a good video. Im not that experienced but if you think the condensing unit is oversized and someone else was working on the unit before you wouldnt checking the TX valves for correct tonnage (and superheat) be something to look at? Its happenned to me on a freezer where the TX was undersized for the evap capacity and the condensing unit was oversized.

  3. fightfor ccsvi says:

    Doing refrigeration in Las Vegas I ran into a lot of intentionally oversized condensing units with larger receivers . High ambient installations on air cooled equipment makes up sizing a necessity due to efficiency loss when you're running condenser temperatures of 125°+.

  4. Ty Huffman says:

    I agree with the customer, good for them, they recognize that it is a wiser bet to go with new equipment and the warranty. Older failing equipment is expensive equipment. The most expensive thing about those chillers is the electricity that they are fed. The difference can be startling, with a new unit paying for itself in 1 to 4 years in electricity savings alone, then factor in the added reliability and it's an easy decision to replace or have the units totally rebuilt at the factory.

  5. Sean Mack says:

    Maybe they are designing at a higher ambient and condenser temp instead of 95 degrees, maybe 105 degrees.

    My rule of thumb has been go 10 percent more capacity than evaporator at 95 degrees. I'm a huge fan of oversizing receivers.

    Nice keep it simple call 👍

  6. Mike pan says:

    Bro I am a fan from New York. Is possible that u can post service calls such as co2 system, or vrf system! I am very interested at those technology! Thanks

  7. Martin DeLoach says:

    You been spot on in this video, but note it is okay to mismatch one of the components, you can have a 3 ton evap run on 3.5 ton condenser, for example, you would actually get a higher SEER rating doing so, because you are either absorbing heat more or rejecting heat more, depending on the component you oversize, you will not run into issues, but key thing to note, not drastically mismatch, a half of a ton on either side the max.

  8. Austonland Hero says:

    I’m having too much heat from condenser. I washed out and temp dropped from 22 to 13 but looking for -8 or so. Fans running good. I think it’s pressure related, but not sure if over charged or under charged?

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