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True Reach In Freezer Evaporator Coil Freezing Up
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- เผยแพร่เมื่อ 2 ก.พ. 2021
- In this video, I will troubleshoot a reach in freezer that is freezing up. Once I find the reason for the freeze up, I find a much bigger issue.
This guy is the hidden gem you find in the deseret and sell that gem for water, this guy is very imformative and experienced
Lol thanks
Your content deserves way more views. Great job. I come from a residential hvac maintenance and install background (mostly grunt work on installs) and I recently got a job with a commercial refrigeration company. Trying to stay on top of it.
Thanks, welcome to the club!
What a great video.. that’s a master technician troubleshooting step by step
Love how u troubleshoot a system. Thanks for sharing your video 📹.
Thanks for watching and the kind words!
Very informative for the Text that are starting out you start out right you'll have no problem and diagnosing the refrigerator or freezer. Retired refrigeration and air conditioning mechanic. Over 50 years.
Always nice to hear from a seasoned vet
Great presentation thank you
Loved the PT chart calculations! Subbed up
Thanks!
@@REFRIGERATIONKITCHENEQTECH where can i find that calculation thanks
thanks for the content man i gained alot from this
👍👍
Awesome video bro 😎 thanks for posting it.
Great video.
This huy is awesome
Very nice. I didn’t know about the “temp pull down : 1 degree per 2 mins “ I’ll keep a note of that!
Yes, that is for reach in freezers. Should be 1 closer to 1 degree per minute if the system is working correctly. The lower we get in temperature, the closer it will get to 1 degree per 2 minutes.
Thanks for the ride along and explanations.
Minor error, your ambient plus 30 should have yielded 101F or a 255psi head
Its great that you are teaching the need to know coil temps and the need to match the saturation temps to whatever refrigerant is in a particular system, the PT chart instead of just relying on a smart manifold or probe reading alone.
Are you by chance an in house guy at a large resort or similar property?
Yup, my mistake!
Nope, work at all different locations. We have a lot of different chain and small accounts.
Good
👍👍👍
So does that mean the compressor is done? It's there a refrigerant restriction somewhere? Im new to hvacr and am trying to learn.
High suction + low head = inefficient compressor. If we had a restriction on a cap tube we would have low suction.
I’m still wondering how do u determine the evaporator TD to be 20, I know pre 2006 most units condenser td is 30
Where can I find this info I feel it’s a good thing to know seeing how it’s working for you
Reach in with a cap tube will use a 20TD evap
I love the G2 phoenix meter. Hope mine lasts forever because they dont make them anymore!
Ya, it’s been good to me
I'm very interested in your reasoning for which applications get desired temp - 20° or desired temp - 15°. Also, which applications get 0 box temp compared to -10°.
All up to the engineer. Reach ins with cap tube are generally 20TD and walk ins 10TD.
Depending where it is it will exhibit the same symptoms, low suction, low head, could be partially restricted capillary or Txv screen, or filter drier partially clogged.
Suction wasn’t low. Had high suction, low head, which is a definite sign of an inefficient compressor on this type of unit.
My bad, I thought you said low suction on the video.
Great vids btw, I’ve watched many of your vids, you do good work, no way would I want to or have the patience to document service on the job as you do, much too frustrating, great job.
They are training videos for all the techs I work with, has really helped with the learning curve. If others can find some use out of them, even better.
A restriction anywhere in the refrigeration system would cause high head pressure low suction pressure no?
Sorry for st question...
30⁰? Ambient+30... Why?
Engineer designed
Couldn’t it have also been a partial restriction???
Suction pressure is too high for a restriction
The head pressure calculated wrongly , 71F+30F is 101F
Ya, my mistake
It was driving me nuts. We all make mistakes. I use these videos to learn the trade better. But I thought I was loosing my mind and had to crack out the calculator. :)
Did you ever notice you added up your head wrong 71 ambient +30=101 not 111
That made your head appear higher then what you thought
Ya, someone else pointed that limit I believe. Can’t edit it at this point unfortunately
Not sure if it would make a difference. When you added 71 plus 30 you came up with 111. It actually is 101.
Yes should be 101. Maybe I did that to see if my techs are paying attention. Or maybe I made a mistake lol
big picture diagnosis
Those trough heaters are a joke. The silver tape holding them almost always fails. For what these units cost mfg a track for the heater. What do I know just a dumb service tech.
Lol, the left hand side tape was barely hanging on, you called it