How to Check Evaporator Superheat

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In this video we discuss how to check evaporator superheat using testo smart probes in a walk-in cooler. Checking superheat at each evaporator on a multi evaporator system is important to system performance.
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6 мар 2020

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Комментарии : 90

@HVACKnowItAll 4 года назад

It's not always the TXV!

@HVACToolReview 4 года назад

HVAC Know It All haha truth. you must be part of a few of the HVAC Facebook groups out there.

@lerch400block 3 года назад

When it is it is when it ain't you wasted a whole fucking day.

@jaxmoses4259 2 года назад

instablaster.

@enemyofthesheeple Год назад

Great channel brother. I've been doing hvac/R for about 7 years. Still learning. Thanks for making videos Mr.Know it all. Lol

@sparkytech8787 2 года назад

love the detailed explanation brother, keep them coming, I just subscriber.

@HVACKnowItAll 2 года назад

I appreciate that!

@fandf1449 6 месяцев назад

the best explanation so far that I've seen, do you have a video and so on subcooling?

@xraybravo7180 4 года назад

Nice video graphics,good view on tablet about pressures and saturation temps over all good sound and intro music

@HVACKnowItAll 4 года назад

Thank you!

@lorenzoontiveros7875 4 года назад

Thanks a lot for sharing that always scare me to try ,but u make look so easy thanks again

@HVACKnowItAll 4 года назад

You're welcome

@JaykeSapalaran-iq3qs 11 месяцев назад

Great video tutorial ❤ thank you for sharing your knowledge and experience 🫡🇵🇭♥️

@mehdimirzaei451 2 месяца назад

Easy explanation thanks buddy

@xraybravo7180 4 года назад

Great video Mr.

@HVACKnowItAll 4 года назад

Thank you!

@rubensabeast 2 года назад

This just flipped the light bulb on lol thanks for the content brother

@HVACKnowItAll 2 года назад

You're welcome!

@michaelminihan6430 7 месяцев назад

Nice. Great info

@mochamadyani 3 года назад

Great video

@zekenzy6486 4 года назад

Great video. Happy weekend ^_^

@HVACKnowItAll 4 года назад

Thank you, you too!

@ashkarpk094 4 месяца назад

nice explanation brother..

@supertech_hvac851 5 месяцев назад

Great content tech

@mikegamer2732 10 месяцев назад

Nice sir. I like your tools

@randyandrews2743 4 года назад

Simple and to the point. Thank you.

@HVACKnowItAll 4 года назад

Thank you!

@sknight0391 Год назад

Beautiful !!! 😎👍

@halilcankaya3202 Год назад

thank you sir , ı love testo equipments a lot bluetooth connection is very usefull

@ares3914 11 месяцев назад

Very important in refrigeration. I run in many times I'm proper super heat and compressors failing in a few years.

@wasimedoo7994 Год назад

Very good information 👍

@chrisgormley5751 4 года назад

Nice explanation about the txv and how to adjust it.

@HVACKnowItAll 4 года назад

Thanks Chris!

@farhanulrahman9302 2 месяца назад

@HVACKnowItAll How to find what is optimal SH OR SC Requires for a 404a system

@robbiebritt8997 3 года назад

In regards to mini split heat pump units, if you are meant to use the sub cooling method as a way to check refrigerant charge because of EEV in outdoor unit, how are you able to do it if there is only 1 service port on the Suction line and nothing on the liquid line? a lot of mini split systems seem to have this set up. thanks!

@benfranqui5283 2 года назад

Great job thanks

@HVACKnowItAll 2 года назад

My pleasure

@timetotravel5886 Год назад

Awesome bro

@RobRocker09 4 месяца назад

would you check the site glass at the condenser is see if its flashing first, then check each evap, great video

@hvactech2966 2 месяца назад

Nice video

@hrdworkin7633 3 года назад

Great tip! The way I remember is if you want to Lower superheat, you Loosen the screw.

@HVACKnowItAll 3 года назад

Correct

@jollyscaria1922 2 года назад

Lowfrezing point ,is 2'f----'4,

@hectortorres542 8 месяцев назад

Thank you. If you have a chance to show the old school way with gages would be cool.

@edram1909 3 года назад

Great video and thank you for sharing your knowledge! any tips for new techs in the commercial refrigeration field?

@dnoorian 2 года назад

ya, follow @dnoorian

@360hvac5 Год назад

Thanks you

@HughesManHVAC 4 года назад

Nice!

@HVACKnowItAll 4 года назад

Thank you!

@armandoacevedo932 4 года назад

Good video's👍👍👍👍👍

@HVACKnowItAll 4 года назад

Thank you

@RobRocker09 Месяц назад

What about checking the condenser for the right freon pressures and checking the sight glass first. So the Condensers are running correctly, then check each evp.

@marjoneantifuesto4503 7 месяцев назад

thanks

@angrynas9668 17 дней назад

Cheking superheat near desire temperature

@videos10 11 месяцев назад

When adjusting the txv valve, and it does not respond to any turns whatsoever. Not allowing the SH to change. Would this mean txv is bad?

@ajayibabatundesamuel5663 Месяц назад

if the expansion valve is manufuntion on chiller what cam l do

@abdullah_q8171 Год назад

So if i need more cooler to my package unit?

@AlexiFernando-qy9fg Год назад

Sir, How much SH is adequate for a -40°C Blast Chiller using 404a refrigerant in 63KW system with 150 HP Screw compressor ?

@nhelzyoung2958 3 года назад

boss is that chiller evaporator system?

@carlosemmanuelgarciabrito791 3 года назад

Nice video mate but clear my mind I read on google the for must system superheat at the evap should be 6-8 walk in cooler and 4-6 freezer can u explain that for me

@icecoldfridgy1729 Год назад

You typically want your evap SH to be low, so you can ensure you are using more of the coil to boil off the refrigerant. High evap SH means you're loosing evap efficiency. You also have to be worried about too much system SH as to not overheat refrigerant cooled compressors, it's bad for the oil.

@6metal6forever6 4 года назад

Looking to get a set of the Testo Smart probes. Do the probes and the app have the capability to log data and display graphs of the pressures and temps?

@HVACKnowItAll 4 года назад

In graph form yes, data logging yes as long as your phone says beside them. You cant set them up and leave for a couple days and leave. For a couple of hours no problem.

@6metal6forever6 4 года назад

@@HVACKnowItAll Thats a bit unfortunate. I was hoping to have the probes connected on the system whilst diagnosing other faults on site without having to leave my phone/tablet behind. thanks for your reply

@nbctcp3450 6 месяцев назад

Home split aircond R32 1. how to find target superheat in Celcius 2. do u hv chart for it 3. what remote temp do u set i.e 24 celcius, low fan, no swing

@kennethportes3706 3 года назад

Good day sir, about the app... How to use em

@texture6 Год назад

The medium used to absorb the heat, the refrigerant. Is related to the amount which increase or decrease The Superheat You want the right amount of refrigerant which relates to the right amount of heat absorption

@goldencoolingsolution 6 месяцев назад

Is Equalizer after expansion valve bulbe

@CubanMofo 11 месяцев назад

What happens if you permanently take off the sensoing bulb of the

@ananthakrishnanm7717 3 года назад

Can you provide details of pressure and temperature measuring device

@HVACKnowItAll 3 года назад

They are testo smart probes

@raviyadav8743 3 года назад

Sir , how to find out proper gas charge in system by measure superheat .?

@HVACKnowItAll 3 года назад

You need to measure super heat and subcooling

@eugenenel2486 Год назад

What make instrument are you using to measure super heat?

@HVACKnowItAll Год назад

Testo Smart Probes

@stephwaylonwells3218 2 года назад

👍

@anowarhossain2558 Год назад

Hi sir

@Gianki00013 2 года назад

Why are you checking superheat if there is a txv valve in the system?

@HVACKnowItAll 2 года назад

Tx valves still require an initial set up and periodical check.

@AbdurRahim-ir9yz Год назад

sir your work places?

@Kyle-sb8dj 2 года назад

I always told myself lefty lessy and that stuck

@WPM_in_ATL Год назад

404, EH? Isn't that a freeway going north from the Don Valley Parkway? 😀 You sound like you are Canadian...if not, I will remove this comment. Having fun here in Virginia.

@HVACKnowItAll Год назад

Yes sir haha

@MR-nl8xr 3 года назад

I don't understand why we always adjust the stem on TXVs if they are MODULATING valves to begin with i.e. the TXV is going to adjust the needle pin for refrigerant flow to wherever the sending bulb tells it to. Adjusting the spring tension via the external stem is almost like playing with yourself, it feels good but doesn't make anything. That sending bulb and E.L. are going to tell that needle pin how much to open or close after everything is said and done anyways, do why bother. ???