WALK IN FREEZER ELECTRIC DEFROST EXPLAINED
Рет қаралды 48,440
Күн бұрынThis started as a call back but turned into a great opportunity to explain the defrost process of a walk in freezer.
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00:00 SPONSOR CARD
00:08 VIDEO START
00:43 THICK
02:36 TOLD YOU I'D WIN
03:41 WHICH DEFROST CLOCK IS BEST
04:24 ELECTRIC DEFROST EXPLAINED
06:24 WTF MOMENT
15:30 FAN DELAY TEST
16:36 CLOSING WORDS
@alpakat292 3 жыл бұрын
I don't know why, I keep watching your videos. I don't do anything related to ac tech, but I still enjoy them.
@billymcguffin6038 3 жыл бұрын
Maybe you should start!!!! Techs are needed lol
@oidodsonidosonido2754 3 жыл бұрын
It’s because you can appreciate thoroughness and professionalism.
@WasimAkram-dv1ch 3 жыл бұрын
Same here
@kingkatiin2658 3 жыл бұрын
I'm in school, for it. Last week I wouldn't have had any clue what he was saying about the clock before that no clue about the receiver. But slowly learning what different things are and what they're for. Just need to figure some pressure valves and electrical stuff and I'm almost familiar with the whole system
@demonknight7965 3 жыл бұрын
Same. I just like learning new things.
@reyrodriguez1005 3 жыл бұрын
You and Dave from NorCal have taught me more than you can even fathom. You two have made it so easy for me. Love your videos man
@dominicesposito9744 3 жыл бұрын
I do residential and light commercial hvac and I literally watch your videos every night🤣
@simonchu369 8 ай бұрын
Thank you very much for showing the entire repairs procedure. You are great 👍
@sarah1390 3 жыл бұрын
When I used to work at a local coffee chain, I was quite often catching faults in our equipment. If it was easily fixable then I would often fix it. But if it required a technician then I would say exactly what the machine was doing and I got a rep among the techs that I was the best person to get info from and they would show me tricks to help them in their servicing and chastise me for something that was supposed to be left a certain way a d I would do as they say
@CitizenPerkins 3 жыл бұрын
That happens every so often -- and we techs definitely appreciate it when we "discover" a civilian with your gift. It makes 'shooting problems at your location a pleasure to deal with. Too many times I've asked the local staff to describe the problem they called in and got back unusable info, requiring a (IT) tech go onsite just to tell us what's going on. A lot of our issues could have been fixed remotely if there were just a few more technically-inclined workers selling retail clothing! 😁
@sarah1390 3 жыл бұрын
@@CitizenPerkins My dad was an HVAC tech and Gas Fitter. He also liked to work on maintaining vehicles, small engines and he was basically a jack of all trades. When I was young I was basically his shadow and I would work with him every chance I got and I still do to this day. I worked as a Telecom IT for a few years and now I work for the same telecom in a section where I still do IT work as well as billing and my passion is fixing and working with electronics and I'm not afraid to be a onsite tech for friends and family as well as break out the soldering iron every once in a while to fix something long term.
@Oscarfisy 7 ай бұрын
Thank you sensei you make it easy to understand.
@ICountFrom0 3 жыл бұрын
I like the guy who takes pictures, and the one who takes notes.
@helmsajr 3 жыл бұрын
Chris be careful out there on those roofs working in heat. Love all the videos you do.
@SweSuf 3 жыл бұрын
Your educational style is laudable! I work in an industry designing and producing complex electronic systems, and wish we had fully implemented the kind of internal apprenticeship you describe. Even high-tech hardware and software designers need guidance and experience from their older peers, but not just thrown at them or shoved down the throat, but spoon-fed over a much longer period of time than most (managers, in particular) realise.
@SproutyPottedPlant 3 жыл бұрын
These videos are fascinating! I watch them for enjoyment 😀 Sadly I’ve watched them all so have to wait for a new one!
@ErikM0985 3 жыл бұрын
I wish I had a Journeyman Electrician like you going through my Apprenticeship. Probably would have learned a lot more, the easy way, instead of the hard way.
@jacobfoxworth 3 жыл бұрын
Dude! I know exactly what you mean when you say "jelly brain". I'm in Texas and we don't get quite that hot, but the attics and areas above drop ceilings get that hot or hotter and I know the jelly brain feeling. You're literally completely out of it. That's how you know it's time to come down and cool off for a few minutes. Be safe brother and avoid the jelly brain. 🤣
@neilvestervictor180 3 жыл бұрын
your experience is priceless
@arturorodriguez2234 3 жыл бұрын
I usually set the timer to 2 min..to see .if it doesn't come out of defrost.. Thanks for the video...cheers from South Texas..👍
@dr.comforthvacr8889 3 жыл бұрын
Thanks man! I am 19 years of age! Beeen doing hvac/R since 16 years old. Started roughing learned a lot of service now own my company! I am about to graduate with my associates. I am a contractor now. I learn as much as possible and love your videos! It has for sure thought me so much! There aren’t a lot of people in Al that know ref so I learn as much from you and from trial and error as well. It’s hard to learn alone but you make my journey easier! Thank buddy good luck 👍
@jshelby78 3 жыл бұрын
Learned something new today,thank you Chris, great informative video
@Ted_E_Bear 3 жыл бұрын
I enjoyed watching the video !
@koolhub6137 3 жыл бұрын
you one of the best tech Refrigeration I seen, you a great teacher, very knowledgeable too.
@mbwanaali6278 3 жыл бұрын
Nice work engineer
@williamjthepoet1675 3 жыл бұрын
Cant wait to see what you ran into today!!! I just a made my first video thanks to you
@lgunderso2117 3 жыл бұрын
I cannot emphasize how helpful notes are. As an electrical engineer who troubleshoots assembly lines and robots, I have found notes not only help in the troubleshooting process today but also next month and in 10 years when I am working on the same equipment. Glad to see one of your techs uses them, I'm surprised you don't given the complexity of some of the problems you solve and how smart you are.
@khalilahmad882 3 жыл бұрын
Good work sir
@adconx98 2 жыл бұрын
I just switched from residential to refrigeration. Love the break down of the vid it makes learning soo much easier.
@HardKnocks101 3 жыл бұрын
Great video Chris. You remind me a lot of my mentor and trainer, my father. You explain things in great detail and clearly. I share your videos with my employees thus making you a non-paid employee of mine. Thanks a bunch!
@GW-ip6jo 2 жыл бұрын
Good video thanks man 👍
@AMDRADEONRUBY 3 жыл бұрын
Really nice video as ever
@alisonheat 3 жыл бұрын
"No, that's a solenoid valve, wanted to make me a liar again." You really escaped that one.. Good work Chris. And I see you got yourself ear protection.✌ Greetings from Heat Archers Limited Uganda.
@bradgoodale3249 3 жыл бұрын
Great video Chris hope your techs appreciate you .Would gladly work with ya mate taking time to look listen and learn,we learn everyday.Well done.chris.
@JjMn1000 3 жыл бұрын
Cool video.
@Syphonfllter 3 жыл бұрын
Had a job this week similar to this. Put a new phase monitor on a unit, came on but the defrost was bad, fans wouldn't turn off. Definitely not worth the risk of not replacing it, I'm still learning but jobs like these are good practice. Thanks for uploading these service calls, helps out big time.
@YuShudNoe 3 жыл бұрын
Last couple years we've been swapping out those Grasslin and Paragon defrost clocks with the new programmable paragon clocks! Haven't had to worry about them getting sand or getting stuck!
@oldshep2695 3 жыл бұрын
Thank you.
@T-Willfixit 3 жыл бұрын
Jelly brain 🧠 that’s classic quote put it on a shirt thanks again for all you do stay safe
@Learnhvac. 3 жыл бұрын
very much informative
@richardbartlett6932 3 жыл бұрын
The old paragon defrost TC. Fitted many but now from a bygone era so wouldn't dream of fitting one these days. Strange how America can be so far ahead on some things and so so far behind on others.. Great video as usual lovely explanation of the defrost process and logic It's not easy to work and make videos that string together especially when you have a freezer room full of food going soft but fair play once again 👍 Great video
@elijahtalbot5288 3 жыл бұрын
Nice video
@viperjet301 Жыл бұрын
I need a technician like you here in Puerto Rico.
@rugerboyks6288 Жыл бұрын
Man….thank you so much for your videos. As a new student, these are incredible for me and I’m truly thankful. The way you kind of just go over everything and highlight all the important things to remember at the end as well is so bada$$! Please never stop making videos 😂 appreciate ya sir 🫡
@MariosACandRefrigeration 3 жыл бұрын
thanks for the info great vid,by the way i think u missed a possible rub out between the high side and the compressor conduit.12;19.good luck.
@commanderosis435 3 жыл бұрын
Checking the defrost and the terminators are the first places to look. Surprised this threw your guy off. The terminators can be a giant pain with those little package units.
@bassntruck 3 жыл бұрын
My parents AC froze up the other day just like this. The condensate S trap was clogged with slime which caused it to fill up the lower duct with 40 gallons of water and then slowly ice up. Had to have been happening for quite a while until the day it iced up solid. I happen to walk by their thermostat and notice it was set to 73 but the inside temp was 78 and it was running. My mother had just thought it was warm as it was very hot outside. Went to look at the unit to find all the lines iced up and outside looked just like this video. Took me a while with a heat gun to get the cover off the inside unit as it was iced up solid. Replaced the trap, thawed it all out, and it now works as it should.
@sherwinalvarez7365 3 жыл бұрын
I remember one of you vids you said that you can change contactor lugs to screws and vice versa. I was wondering if you can make a quick video showing that when you get a chance. I know its peak so it probably cant get done till all that is over. Ill still be watching tho. Newbies would love that video.
@docdat3468 3 жыл бұрын
Seeing the sand in the unit and open clock gears is crazy
@DWAYNE2ism 3 жыл бұрын
Hey chris great video's as usual. Question how often do you get oil log evaporator
@patriknilsson2175 3 жыл бұрын
Stoneage called, they want their stuff back. I work on refrigeration, since 2010 I have changed all mechanical thermostats and defrost timers to digital controllers that manage everything in the cold rooms/freezers. The condensing units do just start/stop on ordinary pressure controllers. And those head masters... they disappeared in Europe for about 30 years ago ;) we just keep refrigerant to a minimum. Even in cold north Sweden where we can get all between -30c to +30c we just use fan cycling control w/o problems ;) And those electric couplings... Wouldn't be accepted by anyone here. We use closed plinths with powered parts only accessible by screwdrivers, not by fingers or something else, it's required.
@lgunderso2117 3 жыл бұрын
Europe has higher tech and better standards for electrical connectors? No way! lol
@davidmiller9485 3 жыл бұрын
@@lgunderso2117 it's a little more complicated than that. Here in the U.S. we use what ever will work and is cheap because customers are cheap. As an example, ask most people what out power system runs at and you will hear 110. Nope! it's 220 and it's split at the power box. Commercial can run much much higher and we use a 60Hz cycle where in Europe they use a 50 Hz cycle. (pal vs. NTSC is an example of the Hz creating it's own standard and how that can cause problems if you try to mix and match). My point here is that we use 220 because it's cheap and easy at 60Hz. When it comes to just about anything here, cheap takes precedent over well designed. Reminds me of Terry Pratchett's boot story from discworld.
@davidnull5590 3 жыл бұрын
@@davidmiller9485 --- Interesting comment. 60 Hz. vs. 50 Hz. Both standards were established in the late 1800s. - Nothing to do with the original comment. Same with the line voltages - Nothing to do with the comment or subject. The differences between European and American are mainly the conventions that evolved over time, typically you don't create a new way of doing things, if you do that in HVAC the next guy isn't going to understand anything you did. And Europe isn't one place, there're many differences from country to country, even if they are using equipment from the same manufacturer.
@lgunderso2117 3 жыл бұрын
@@davidmiller9485 Yup, I'm an electrical engineer from Detroit... our non-industrial connections are trash. I actually really love our split phase for residential systems though I'd love to have 3 phase at my house. It's also weird how sometimes it's a 110/220, 120/240, and 125/250V system... I often see 126/127V on one leg of my house in the spring and fall.
@patriknilsson2175 3 жыл бұрын
@@lgunderso2117 asset.conrad.com/media10/isa/160267/c1/-/sv/280927_BB_00_LO/image.jpg?x=250&y=250 this is the standard that we use in our installations, both in closed cabinets and closed coupling boxes with rubber sealed fittings also in plastic. The breakers is in all-plastic also. Not in metal as the americans. No risc of being electrocuted with the plastic ones.
@ahmadhamad86 3 жыл бұрын
Have you worked on thermal banks? They are very interesting I used to be intimidated by them at first now I love them.
@leonbogon148 3 жыл бұрын
Never changed that many defrost clocks of that type-I found them to be pretty reliable!-
@realestateservicessaleshea99 3 жыл бұрын
Always good content. Experience is the key nobody is perfect and if they are they are flawed! 😘🍺🍺🍺🥃🥃🍇🏌 Stay safe. Retired(werk'n) keyboard super tech. Wear your safety glasses.
@eastcounty4605 Жыл бұрын
Great Video Sir, Still looking for that refrigeration BOOK i hope you put out very very soon. Can you make a video showing how to wire the defrost timer inside the walk-in freezer. Not quite sure how to do that.
@patrickbeals2416 3 жыл бұрын
I am residential tech in fl and jelly brain is for real ...I do dumb shit all the time in the summer ...but you’re correct if you’re going to call someone for help make sure you have all the info that a senior tech would ask for before you call them...I like the big picture idea it’s only made me better
@shine-cg9uf 3 жыл бұрын
Great video 📹👍. Thanks for sharing
@derrickenbuenosaires 3 жыл бұрын
I get alot of guys that say that we should always be charging to a full sight glass but there's a lot of factors on charging to a full sight glass. Guys don't seem to take into consideration if the box is close to setpoint or under heavy load, is it in it's hot pull down phase. Then you got mechanical issues such as your drier, risers or maybe just that your TXV is too wide open. The sight glass aids in diagnostics but I usually don't trust it over temp readings.
@kennethlobo4420 3 жыл бұрын
Thanks,for this video.I never thought of checking the gears on a timer like this,my usual focus was more on the electric side,but the question I have is if u turned the knob on the timer into whatever mode u want,I am sure it would be pretty hard to rotate,wouldn't this be an indicator of defective gears?Nevertheless observing the gears is a great thing.
@HVACRVIDEOS 3 жыл бұрын
Yeah if it's hard to turn its definitely going bad
@561lyfestyle2 3 жыл бұрын
This was literally my late Thursday night service call chik-fil-a WIF condenser fan motors not coming on... When I got there, there was a young 25 year old manager who looks like the health buff that works at the gym that wants to give you a free workout. Anyways he brought me to the walk in and pointed at the evap and said see there nor spinning 😑😑😑 so I educated the customer rq, anyways same issue also the liquid line solenoid was leaking by. I didnt have the correct one but I gave it a few love taps to get it going until i could change it the next morning. I should post videos again like I use to back in the day...
@EFD620G 3 жыл бұрын
Condenser fans needed cleaned!
@ErickHernandez93 3 жыл бұрын
Hey just in case u might have missed that electrical going to compressor rubbing on that discharge line 😮 Just repaired one recently unfortunately we can’t see it all😞
@Blasterxp 3 жыл бұрын
Open gears in dusty environment, is that a Smart choice?
@davidmiller9485 3 жыл бұрын
considering it's inside the unit behind the upper case, i would image the sand contamination is minimal.
@bryannovak5917 3 жыл бұрын
In Southern California we have a lot of dust, dirt and wind. I've had quite a few of these fail. The grassland timers are not that much better when dealing with the sand.
@boulting1 3 жыл бұрын
Not seen one of those timeclocks since the 80's, the wiring is so hazardous. you guys seriously need to move to the digital age. love watching your videos for a step back in time to my apprenticeship 🤣
@scottkasper6378 3 жыл бұрын
I work on refrigeration that cools a gas inside a tank that is under vacuum at the start of process so ice on the evap is not an issue. They just need MAXIMUM COLD. But the accumulators ice up because they don’t defrost. What detrimental effects would the ice have?
@poncedeleonrefrigeration9197 3 жыл бұрын
Chris, I have an off topic question on your meter, why pick sc480 instead of the 680?
@briant9764 3 жыл бұрын
i once miswired a defrost timer so when the defrost termination switch closed it made a direct electrical short and blew a fuse. The freezer ran correctly for a few days
@blake_edwards 3 жыл бұрын
Would that outside heat be why you don't use digital defrost clocks?
@jasontexter1721 3 жыл бұрын
13:18 you gonna do something about that conduit rubbing the liquid line 🤣
@jasontexter1721 3 жыл бұрын
Or maybe discharge line couldn't see it very well
@kkepdawg1 3 жыл бұрын
95+ on a roof is nutz!
@LightStrikerQc 3 жыл бұрын
9:00 Got ride of all the ice... That's... n'ice...
@stephwaylonwells3218 3 жыл бұрын
👍
@harrydickson4575 3 жыл бұрын
👍👍👍
@Trueworo Жыл бұрын
How long does it take to replace the clock .
@ghosttpk6630 2 ай бұрын
So I deal with freezer units and cooler units my boss loves to yell at me and a co worker because the units blow water and freeze up they keep saying their dirty but we could have just cleaned them they still try and tell us that they are dirty. They are not hvac smart by any chance but some of our fans run backwards pulling in air instead of blowing some blow cold air some fans don’t even work any suggestions?
@davidmiller9485 3 жыл бұрын
i didn't even know Tecumseh even made ac units. Small engines yes but... that's cool (no pun intended).
@bryanhumphreys940 3 жыл бұрын
I work in a restaurant and have literally been sent up with a bucket of boiling water and towels to defrost the evaporator fins because it was a few days before tech could come out.
@aaroncruz5854 3 жыл бұрын
I had one that had a bad low pressure switch and it wouldn't pump down. Took another couple months before coil froze over again. 🤣
@ramirezmanuel117 3 жыл бұрын
Time clocks can be intimidating
@josephcrosbypcola 3 жыл бұрын
Mmm, mozzarella sticks
@steveblake8766 3 жыл бұрын
#505 thumbs uP
@FerroequinologistofColorado 3 жыл бұрын
What would happen if the compressor somehow started whilst the system is in a defrost?
@TheWittyGeek 3 жыл бұрын
I'm not a pro but I'm going to guess it'd just be a total waste of energy. I guess a pressure limit switch could switch maybe. I don't believe it could damage the compressor or anything.
@FerroequinologistofColorado 3 жыл бұрын
@@TheWittyGeek ah ok
@proc7867 3 жыл бұрын
As shown in the video, the defrost heater contactor has an interlock on it so if the compressor started, the heater contactor will shut off.
@FerroequinologistofColorado 3 жыл бұрын
@@proc7867 I know but if the interlock wasn’t there what would happen if both contactors were pulled in at the same time?
@kat2641 3 жыл бұрын
Well? It's true I am a dinosaur by age, but I will take old school mechanical defrost timers anytime over the new digital defrost timers..like you said the biggest advantage of the mechanical is you can actually see it go through the cycles you can actually inspect the contact points for burnt contacts. I can tear them apart rebuild them with my eyes closed. An the most important thing for me an my boss is if our employees learn to see " the big picture" looking outside the box an seeing the whole picture. While we don't experience the hot temperatures you do we do experience negative 20 outside an the winter charge is extremely important in my neck of the woods. A Teck that listen to you , an is returning and giving you a detailed report? For me it tells me our Teck is not only doing his job but also helps us what to look for should we get a call back. What I most like and admire about your channel is you keep it REAL!! You don't edit out Miss spokes or errors or overlooks. I would rather watch a video that is real then one that has been edited to look perfection.. let's face it we're all human and as humans were capable of error occasionally an I don't care whether you're 18 or 88 we all have oversights. But great job an thanks for your time involved in making these...
@HVACRVIDEOS 3 жыл бұрын
Thanks bud
@code9954 3 жыл бұрын
Why does that freezer have frozen turd stored in packets? 09:46
@hariranormal5584 3 жыл бұрын
why cant we use a digital defrost clock with even a RTC, it probably is more reliable and has no mechanical stuff
@rmhanseniii 3 жыл бұрын
He’s usually good about protecting the product in the walk-in… not today
@davidmiller9485 3 жыл бұрын
hey it was in plastic! lol
@jaynawlins3327 3 жыл бұрын
Just put pressure controls on and rip the Defrost heater out lol
@charliemayne2981 3 жыл бұрын
The next time you have a promo, please let the code be JELLYBRAIN 🙌🏾
@electroimpex8897 3 жыл бұрын
Second
@Flowtester1 3 жыл бұрын
I think I’m stuck on jelly brain.
@munboy216 3 жыл бұрын
First
@johnhershey4010 3 жыл бұрын
Forth
@DrHakennase 3 жыл бұрын
Thats just snow no solid ice. Remove the air leaksto the walkin
@Nyarly_Relyeh 3 жыл бұрын
Now I see why you have to keep your customers not shown.. Freezer with bread and packed cat poo? oh my, what country's kitchen do they serve? I'm afraid, I do not want it %)))))))))))))))))))))))))))))))))))))))))))))))))
@Abhishek-C92 3 жыл бұрын
Why not use electronic defrost clock ?? That will fail surely.
@joeanderson6187 3 жыл бұрын
More reliable than most electronics.
REFRIGERATION KITCHEN TECH
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