I built that exact stage 1 compressor when I worked at Trane (verified by the S/N on the label.) It does my heart good to see that old girl still kicking.
@analogmoz
2 жыл бұрын
Finally Chris fully acknowledes the " heat-producing device."
@HVACRVIDEOS
2 жыл бұрын
I wanted to see how many people caught on......
@GottSegneDich
2 жыл бұрын
Lol Shoulda known it’d be something lightweight.
@sterlingarcher46
2 жыл бұрын
I thought the cat had already been out of the bag for quite a while though ...
@HVACRVIDEOS
2 жыл бұрын
Most people already knew but some probably still won't get it
@ATeamAdam
2 жыл бұрын
@@HVACRVIDEOS get what 🙄
@danieljohnson5221
2 жыл бұрын
I am a maintenance tech at a large 3 building healthcare center, and just starting school for HVACR. I am very fortunate that my boss is allowing me to work on the units we have here and experiment. Of course with the aid and mentoring of a seasoned HVAC tech that used to work with the company that now is running his own business. I've just turned 30, and sometimes I kick myself in the butt for not starting school sooner. But watching you work and how you handle situations, and just being a kind person is really inspiring. Thank you sir for sharing your knowledge. I, and I'm positive many others appreciate what you are doing here.
@mr.invisible3770
Жыл бұрын
I always make mistakes when I rush through things. It’s always wise to slowly methodically take your time with this stuff
@inothome
2 жыл бұрын
A few notes about insulation resistance measuring..... Motors and lengths of cables will store a charge! Most meters will auto-discharge but if you pull off a lead while it's energized it can lead to the motor or cable storing a charge and it can (and will) give you a nice shock. Not a bad idea to have a ground lead set up and touch the winding or cable before you put a finger on it, unless the meter has a volts display and it shows zero (most testers do). When measuring motors with enclosed winding leads, like ac AC compressor, as long as you did a winding resistance test and verified none of the windings were open you do not need to test each lead to ground. Since you previously verified winding integrity, which is usually less than 100 Ohms, when you measure one lead you are measuring all windings to ground. The 100 Ohms or so winding resistance will have negligible effect on the MOhm readings. When it comes to open lead motors, 6 lead, 9 lead etc.... you can break the leads and then you should also measure winding to winding resistance, as well as winding to ground resistance. But for three lead AC compressors, you can only measure to ground. Doesn't save much time measuring one lead vs three, but measuring all three is unnecessary. As mentioned below if you are logging and trending the data, if it's over the scale of the test equipment always write what it's greater than and the test voltage. I.E. >550 MOhn @500V. If you were to just write OL, off scale etc.. and the next time someone tested it with a higher resistance meter and measured 5 GOhm, using a 20 GOhm tester it may appear that the insulation is starting to degrade. But, to do a correct insulation test for trending you need to do more than just put the meter on for a few seconds. There is a DAR test which is a comparison between 10 sec and 1 min ratio and a better test of 1 minutes vs 10 minute test called PI, which is also a ratio of the two readings over time. Readings also have to be temperature compensated to trend accurately. BUT, all of that is WAY more than you need for the shit you do on daily basis. A simple, yup or nope is more than enough for your troubleshooting needs. Just like you've been doing. Also great to finally see contactors worth needing being changed out too!!! Made my Sunday... ;-)
@HVACRVIDEOS
2 жыл бұрын
Thanks for the info bud!!
@cameronsteel6147
2 жыл бұрын
I’ll just mention it in case you didn’t pick it up yet, but on the fluke, when it was showing 550 megaohms, there was a greater than symbol (>) to the left of the screen, essentially meaning the insulation resistance is at least 550 meg, but that’s as high as the meter can go.
@Monkeh616
2 жыл бұрын
It'll actually to go 2GΩ but there's really no need to stuff 1kV across a 208V compressor.
@cameronsteel6147
2 жыл бұрын
@@Monkeh616 ah yeah, I’d forgotten about other ranges. Insulation testing is not something I’ve done often, and not with that specific meter either.
@isettech
2 жыл бұрын
Just a note to save time on the insulation tests. On a compressor, the three terminals are connected together inside with less than 10 ohms in most cases. If you do a winding continuity test first, and it passes, the insulation resistance or Hi Pot tests only need a test to any one of the 3 terminals. If one leg is leaking, measuring 500,000,000 (5 megohms) on one terminal and measuring 500,000,005 on the other for a 5 ohm winding is not going to be measurable. If one is shorted, then measuring 20, 20, 5 means you have a short to ground. None of the terminals will be open if the terminal to terminal continuity test passed. TLDR. Insulation test any one winding after winding resistance tests pass.
@rockercover
2 жыл бұрын
6:56 - Those spade connectors once heated are so close to junk / failure. If anyone had the time to convert those to a screw down lugs, (won’t be easy on the short and thin compressor electrical pinout side. Your pitted contact relay was an excellent find and smart change out, (as usual). More good work by Chris.
@zjeepgozweeln
2 жыл бұрын
I've never been a fan of spade/blade connections on load carrying circuits (especially in harsh environments). Once the metal oxidizes, resistance increases, the terminal builds heat, causing more oxidation and the connector eventually gets distorted and loose. Dielectric grease can be used to help mitigate the oxidation and protect the connection, but it's kind of a pain to deal with that. In the end they just suck.
@waffalobill
2 жыл бұрын
I'm not a hvac tech. Have helped a few. Your good dude. Would love to help you out. You have a lot of knowledge. Don't know how you stand the heat working on roofs.
@takethe101totarzana4
2 жыл бұрын
I appreciate you as well Chris. Your taking your time to put these videos, service calls, Q&A on Mondays, together out of your own day so we can learn with you as well. Im not an HVAC tech, but what ive learned from you has helped me do my job better and taught me to try to identify possible problems before they happen. Thank you.
@JamieKugelmann
2 жыл бұрын
Chris, for unscrewing really stuck screws without hurting anything, would highly recommend an impact screwdriver. They are super awesome. Works with a hammer to apply a very sudden & strong rotational force and a forward force as well to prevent it slipping off
@ehsnils
2 жыл бұрын
Aluminum feeder cables are tricky as well - we had a 500A 3-phase safety breaker failing because the connections of the alu cable was bad. Aluminum can "float" if pressed too hard and it has different thermal expansion compared to other materials. So checking those terminals is a good idea. Even if the unit runs the start current can be a different matter. A thermal camera can sometimes reveal things like that when the devices are running too.
@therednexican8137
2 жыл бұрын
The only thing I would add is to check the lug nut tightness of the incoming power at the disconnect. I had a similar issue as well on an old Trane unit. I had to get an electrician to replace the main breaker. Also I totally agree with you Chris, we definitely need more kindness in this crazy world. I too find myself angry sitting in traffic sometimes. Many of us don't know what others are going through so its always the best thing to show kindness! I love and always learn from your videos! I liked your channel right from the start because I could tell you are very clean, organized, very thorough and always emphasizing communication. I've become a better tech as I continue to learn from your videos. I am still very green, 3 years experience. Thanks again!
@coldfinger459sub0
2 жыл бұрын
I cannot understand why some people give Chris videos a thumbs down ? His videos are among the very small group of High quality You Tube HVAC content that is helping to shape and bring up new young technicians in this trade. OLD TECHS TO ! As for Internet content purchases for HVAC equipment I am nearly 80% plus purchasing all my supplies and equipment through the Internet delivered directly to my shop. Because the local HVAC warehouses are doing such a poor job of it the last several years continuously downsizing their product line and part numbers on the shelves. And when you order through your local HVAC warehouse when you get the excuses 1: why the part did not get ordered in the first place. 2: why only half your order came in when you went to go pick it up 3: why some of your product order came in damaged 4: why your order was delivered to another customer 5: why your order was delivered to another one of their warehouses 6: Why your order did not get dropped off on the delivery truck and it’s still stuck on the truck heading away from your city and won’t be back until tomorrow 7: why your order is late because their driver who couldn’t pass a drug test gotten an accident and just quit and left and they don’t have a back up driver to deliver supplies 8: why the warehouses delivery truck broke down and they don’t have a back up and because the management loses their bonus if they rent an outside truck to make emergency deliveries so they don’t 9: why the order you ordered their computer part number did not match the item that’s in their expensive multi million dollar parts acquisition software 10: why is a high turnover low paid dyslexic sometimes untrained Parts Paul N staff at the main warehouse cannot read the labels properly and send you out the wrong product. Since I started ordering online nearly all that has disappeared and I could come much more profitable and often at a lower price delivered on time WOW 😄. Mind blow 🤯 It’s coming down to the point why do we need our local supply warehouses just to pay more and lose time and become less profitable ?
@MrNick2913
2 жыл бұрын
You could always get an impact screw driver for those stuck lugs on contactors. Works a treat and helps on some rusted screws too
@etherealrose2139
2 жыл бұрын
If the breaker was bad and wouldn't reset... it could be as simple as a bad breaker. Still good to do a ground check on everything. Glad that you did that. Those contactors pitting all over would create larger gaps, more arcing and leads to more spalling and pitting and amperage draw. Definitely could be those causing the original issue. Makes you wonder if it happened many times and they just kept flipping the breaker... which would shorten the life of the breaker as well.
@dashcamandy2242
2 жыл бұрын
That matches my "computer chair diagnosis" almost 100%. I wouldn't be surprised at all to find the contacts had significant resistance, and I also wouldn't be surprised if there had been an unknown history of contactor chatter. I've seen Chris test voltage drop across contacts in previous videos, I was hoping he'd check that out here.
@Monkeh616
2 жыл бұрын
Bear in mind when you're checking capacitors, your meter is specced at ±(3% + 5) - so it can be high or low 3% of the reading plus five least significant digits. So what you're reading there could be anything from 23.12uF to 24.65uF. Also, don't be afraid of a spritz of penetrating oil (WD40 is fine..) on stuck screws. Always best not to force them too much, your day gets much more annoying when you have to get the drill out (not so much a problem with the contactors, but in general..).
@somethingsomeonesaid6455
2 жыл бұрын
I appreciate what you do, both in the videos and your work ethics.
@atch_n_sons
2 жыл бұрын
Inspiring words at the end. And again big picture diagnosing in mechanics and life!
@akio2589
2 жыл бұрын
That Megger is going to be a wonderful troubleshooting tool for you. Not only can you check motors, but you can also check wiring in conduits/junction boxes. If you have cooked wires in a pecker head, there's a good chance that meggar will find it for you. Though some words of caution, since you said you're new to it: - Do NOT meggar a VFD, line or load side. - The voltage reading is just as important as the resistance reading. - While most of the equipment you seem to work on is 208V stuff, *most* of the time, the wiring will be 600V (probably THHN or THWN) rated. So, if you're checking wiring with it (IE from the disconnect to the breaker), you're better off to hit it with the 1kv setting, as opposed to the 500V setting. More likely to find ground faults testing at the appropriate voltage, if there are any. Make sure to switch it back before hitting your compressors/fan motors with it again, though. It... Probably won't hurt anything, but if there's a weak spot in the windings already, that'll finish it off. - It hurts if that thing bites you. Or anyone you're working with. - Going with the last point, for the love of all that's holy, check your leads regularly. I'm intimately familiar with the 1587. It's a very nice piece of equipment and can save you a lot of headache if utilized correctly. Edit: Regarding stuck lugs: Invest in an impact driver. You will not be sorry.
@jaysonhines1
2 жыл бұрын
Hey Chris. Awesome video. CAN YOU FIND OUT FOR US HOW TO DO A FULL INSULATION RESISTANCE TEST WITH ANY MEGHOMETER. (Caps lock alert) just like QandA live stream. 🙂
@BensSightSoundandAuto
2 жыл бұрын
Got a Copeland scroll in our home A/C here in Australia, had a bit of trouble with burnt push on terminals as well. Luckily the heat never compromised the seal
@kwinterburn
2 жыл бұрын
The mechanism of tripping is the breaker seeing excess current, but the burning contacts you found will essentially rectify the AC into DC, DC will not see the iron in the compressor motors without the inductance would over current the breaker, it's very common on 3 phase systems,you also get a 3rd harmonic current running inside the motor which if it went on for a few seconds, like a failed Solid state relay the motor will burn out very fast, great video, not my field but interesting
@MrJugsstein
2 жыл бұрын
Ha just bought a set of flag crimpers yesterday. Got sick of butchering them with the pliers. I only do may be 2 flag crimps a month and it not my main job so got mid range tool A$65 after discount from my supplier.
@aeternusdoleo4531
2 жыл бұрын
Tip for the stuck screws on the contactors: It's usually corrosion that caused the screws to just lock themselves in place. This is one of the situations where a bit of gentle "percussive maintenance" is actually useful. Take a screwdriver with a rigid handle and just give it a single solid tap (tackhammer, not sledgehammer) to send a physical shock through the screw. That is often enough to break up the corrosion and free the windings that you can turn it. If you can turn the screw, you can then just wiggle it loose.
@peterhaan9068
2 жыл бұрын
That sure looked like a quality made unit with quality components. Something that I don't recall on some of the much newer Trane equipment that you have worked on.
@funforjonny7466
2 жыл бұрын
You do not need to stress the insulation inside with high voltage. Because the windings inside compressor are connected (checked with ohmmeter) it is sufficient to test insulation only once at one terminal. Regards. Insulation resistance is equivalent with windings to ground but with much higher voltage (higher stress to insulation).
@dockshvac9485
2 жыл бұрын
You can grind off the cutter part of the standard crimp tool you showed and only leave the crimper uninsulated part. Then you can crimp without touching the rest of the connector.
@HVACRVIDEOS
2 жыл бұрын
Interesting idea, thanks bud
@johnhaydt7563
2 жыл бұрын
FLAG CONNECTOR QUESTION - years ago, we would crimp and then solder wires (with soldering gun) to connectors and then squeeze tighten connectors to terminals.
@Alienspecies635
2 жыл бұрын
I love the guys who just flip the breaker and call it a day😂 had a company do it to a buddy of mine. Put in a new fuse and left. Not even 5 seconds before it blew again but he didn’t realize it because they were inside and the blower was still running but the condenser wasn’t. He called behind my back because he didn’t want to wait the couple hours till I got there. Ended up paying both of us only I actually fixed it. Was just the insulation in the wire rubbed off from vibration. Fixed the wire and zip tied it away from the condenser door. Still runs today…
@crazyedo9979
2 жыл бұрын
I used the AMP hand crimping tool 18-14 Type F for many years in CHP environment. In my opinion it is a good tool you can use it on straight or angled crimp connectors.
@epievlog3219
2 жыл бұрын
great job sir Chris I really love watching your HVAC video. there is a lot of knowledge I learned that I can use in my job thank you
@transmitterguy478
2 жыл бұрын
Get a few 220-volt counters you could mount inside the cabinets on this roof and connect to the compressor side of the contactor, then you can see how many cycles the contactor kicked in.
@dodger6376
2 жыл бұрын
Would love to share short video of the ammonia plant I work on! Slightly different from your DX equipment, Our working practices are very different from you guys, But exactly the same principles, I really like the way you talk through your different experiences and processes very calm and most importantly in control 👍🏻🇬🇧🇬🇧
@shawns6135
2 жыл бұрын
100% be nice, treat others as you want to be treated!
@bojackh5812
2 жыл бұрын
If you do an insulation test on just the Compressor you have to remove all 3 Terminal wires the same time. Otherwise you will measure the wires and contactors too. One single check on any of the three terminals is enough, because they're interconnected via the other windings.
@AVR-hf1rl
2 жыл бұрын
I think Cell Phones have done more damage. Nobody talks to anyone they just text. when you go out to eat you wait in line no one strikes up a converstion with a stranger. When we go out to eat I leave my phone in the car. then I just start talking with people. Give it a try sometime
@jamielapierre931
2 жыл бұрын
So true!
@LL-gk8wt
2 жыл бұрын
That speech at the end of the video.
@matw75dma98
2 жыл бұрын
Hey I use the CTI 6, PZ ZH 16 and PZ 6 Roto from Weidemueller :) Greetings from Austria
@Ted_E_Bear
2 жыл бұрын
Chris, thanks
@jasonjohnsonHVAC
2 жыл бұрын
I like to use my decade box for testing Trane's. I also find those test terminals sometimes are a pain, so i will pull the plug for them off the board and use a flat head screwdriver and short the pins directly on the board. A decade box is also useful for when you have a bad or suspect a bad thermistor. Ive used my decade box to get chillers back online, used for zone stats, entering and leaving water sensors.
@HVACRVIDEOS
2 жыл бұрын
Yeah I've thought about making one but I don't work on them too much.... maybe one of these days I will get off my butt
@jasonjohnsonHVAC
2 жыл бұрын
@@HVACRVIDEOS i just purchased one off Amazon. Its nice to just flick the switches to get to your intended value. Mine goes up to 10,000,000 ohms
@HVACRVIDEOS
2 жыл бұрын
Shoot me the link to my email and or just the name if you can, does it have all the needed values for the trane units? On My previous research the already built ones didn't have all the trane values so I wanted to build my own...
@Alienspecies635
2 жыл бұрын
@@jasonjohnsonHVAC is there a specific reason they used a helicopter to pull those RTUs off the roof and not a crane 🏗
@jasonjohnsonHVAC
2 жыл бұрын
@@Alienspecies635 yes....crane wasn't available in the time frame we needed. It was for the IRS and the work had to be completed before they arrived for business on Monday. We had 25 guys on the job....plus it was just cool as hell lol
@BHAMILTON92
2 жыл бұрын
I have some pro’s-kit crimpers from Amazon, they are pretty good. Have standard, flag and a couple other types. They ratchet and give a positive feel. And the grip is nice.
@thesilentonevictor
2 жыл бұрын
Big picture diagnosis master
@INRIKingOfKings
2 жыл бұрын
Thank you for the great words of wisdom at the closing of your videos. This one was truly touching because I am so greatly thankful for our military. Those guys and gals risk it all for our freedom. And we all need to slow down and be thankful for what we have. A kind word soothes the heart. If you're always worrying about what you don't have, you will forget about what you do have.
@vincentmcclelland9179
2 жыл бұрын
Like to see the Fluke meters used, some of my fav's my last one was stolen out of my work vehicle, on, copier service tech for over 20 years, but I like vids like these, have done some residential AC work in the past, electrical and electronics has always been my love, I noticed a meter over your left shoulder up on the shelf, is that a older Simpson up there? you don't see many of them any more...
@pawo007
2 жыл бұрын
A tool like the 12V Bosch PS41 impact driver (or similar small impact driver from any other company) and some quality bits is a great way to carefully tappy tap tap those stuck screws and lugs free...
@viralvideos6532
2 жыл бұрын
23:51 Perhaps the most important part of this video.
@ezequielcrespo7046
2 жыл бұрын
Man I wish I had you as a teacher lol you explain things really good
@unknownsf0
2 жыл бұрын
Phenomenal video again, it never fails. You’re a genius
@HVACRVIDEOS
2 жыл бұрын
Thanks bud!! I will be going live on KZitem this evening 9/27/21 @ 5:PM (pacific) to discuss my recent uploads and answer questions from emails and the Livechat, come over and check it out kzitem.info/news/bejne/zY2t26Oie6Cpepg
@tobimai4843
2 жыл бұрын
BTW it isn't 550 mOhm, it's > (over) 550 mOhm. Doesn't really change the results, just wanted to say it
@skorpion1298
2 жыл бұрын
It's MOhm not mOhm :) MOhm = Mega Ohm, mOhm = Milli Ohm.
@jman0870
2 жыл бұрын
@@skorpion1298 oof, got eem! 🤣
@skorpion1298
2 жыл бұрын
@@jman0870 this can happen sometimes :)
@tobimai4843
2 жыл бұрын
@@skorpion1298 Oh. You are right
@inothome
2 жыл бұрын
And it is also important to write what it's greater than. Not just OL. This meter only went to 550 MOhm, but there's meters that measure to 20GOhm or more. One guy measures >550Mohm, records OL. Next guy comes along measures with a 20 GOhm and it measures 5 GOhm, now it it may look like the insulation is starting to degrade if someone thought the first tech used the same 20 GOhm meter.
@jefferygrady3181
2 жыл бұрын
Great commentary at the end! Like your trouble shooting ! Only thing left out was the panel breaker! Was it causing the short? Like to replace them myself because I have had them come apart when I removed them had loose shorted wire connections and found the breaker loose on the busbar and arcing! Thanks for the video Chris!
@sandippatel2472
2 жыл бұрын
I think your videos help me to sleep,it is like deep sleep video for me thanks
@julianpiper240
2 жыл бұрын
Best way to unwind 👌
@JP-sd2cw
2 жыл бұрын
Chris do you ever check Economizers? Like checking dampers and seeing if the unit has DCV? DCV can be pretty important especially when tied into the fire stop.
@quietone610
2 жыл бұрын
Insulation resistance varies so EXACTLY with temperature that you can measure winding temperature indirectly with cold winding resistance vs hot winding resistance. The math requires a spreadsheet, but it can be done.
@andrewfidel2220
2 жыл бұрын
The stuck screw terminals is why they make bit sockets for your ratchet =)
@supasexystick
2 жыл бұрын
I've got a wirefy (Amazon) crimp set that I use for all my automotive stuff. The crimps seem to be pretty good I like the heat shrink built in. Had been interesting reading about pull out strength on crimps and how going to tight actually is worse. There's charts and tables you can find
@LazyLifeIFreak
2 жыл бұрын
\o/ Just in time for lunch, potato & leek soup with a lot of garlic, croutons too!
@denisohbrien
2 жыл бұрын
stuck screws, an impact driver is your friend, not the battery gun type, the old school hammer on the back type. (snap-on PIT120 is whats in my toolbox) they unscrew and push into the fastener.
@donalddayton1818
2 жыл бұрын
Flag Terminal Crimper by Pro'sKit ratcheting: eBay (mine does only blue & yellow very well) not sure if insulated or non... Everything else, I use Channel Lock 909 non for all. Milwaukee M-18 heat gun for heat-shrink & M-12 soldering iron, comes with 2 tips at least a 5.0 Ah battery for heat gun and 4.0 Ah for soldering iron. Trying to figure out how to add a picture to this comments...
@realestateservicessaleshea99
2 жыл бұрын
Call backs cost time and money so it is always best to take your time and be as thorough as possible. 🥃🥃🍺🍺🍺🍇🏌🏻♀️ Stay safe. Retired (werk'n)keyboard super tech. Wear your safety glasses!
@benjaminbortz5362
2 жыл бұрын
Good vid always have that in your mind big picture diagnoses
@FerrybigGaming
2 жыл бұрын
5:44 note that the meter shows "bigger than 550", it could be anything bigger and the meter in unable to read it, don't confuse this with a normal 550 reading
@jeffadams9805
2 жыл бұрын
I would have checked it all over also. Good job.
@gregbowman3598
2 жыл бұрын
Nice job Chris 👍
@johnstokes2246
2 жыл бұрын
Check the flag terminal supplier. The terminal manufacturer may have a dedicated crimper tool for the terminals that they manufacture.
@jonarmedpiandsecurityoffic9051
2 жыл бұрын
Just woke up, let's learn us some knowledge 🤣🤣🤣
@stevenbrannen1568
2 жыл бұрын
I remember we call the work you did the difference between a technician & a mechanic. Techs dig into systems.
@RambozoClown
2 жыл бұрын
I have a set of flag dies for my Greenlee cordless crimper. I think they are also made by Greenlee or Eclipse. You can get dies to fit most ratchet crimpers, too.
@kennethlobo4420
2 жыл бұрын
Great video,just trying to figure out why u did not do a ground test on the blower motor,of course the unit is running with out any issues .
@AG-tg9in
2 жыл бұрын
6:40 worst comes to worst use the small knipex plier wrench it works sometimes even better then any basic crimper.
@bhunter3850
2 жыл бұрын
Thanks for the video. Thanks for showing how to use the Trane test function. Could you do a video on how to use the Trane test function?
@Ryan-wz4un
2 жыл бұрын
Insulation resistance main fail point is the winding resin degrading or moisture
@markcaldwell1245
2 жыл бұрын
Only thing I ever thought on terminal connectors is insulated and non-insulated. I have the channel lock crimper cutters and that is all I use. Never realized there were special flag crimpers but my flag crimps always held just fine.
@westcoastpowerwashingservi2012
2 жыл бұрын
AMEN BROTHER ! SMILE
@dashcamandy2242
2 жыл бұрын
Your method of electrical troubleshooting is excellent. Good advice on turning the unit off at the disconnect before resetting the breaker; this one step can help techs see if the breaker, or the wiring between the breaker and disconnect, are the issue. As you discovered, the breaker had failed; I'd guess that was due to the very pitted contactors combined with the mains cycling on and off from the recent power outage. I'm glad you dove deep into diagnosis, it's always better to be proactive than reactive. As Ethereal Rose points out, that breaker probably tripped several times in the past, and probably due to the horrendous contactors. The common layperson resets a breaker, the device comes back to life, and since the breaker doesn't immediately trip again, the problem is forgotten and life goes on. Do you inspect contactors during your PM calls?
@HVACRVIDEOS
2 жыл бұрын
I will discuss this on my livestream tonight 9/27/21 @ 5:PM (pacific) on KZitem, come over and check it out kzitem.info/news/bejne/zY2t26Oie6Cpepg
@davecarlson3414
2 жыл бұрын
Chris's famous words well have to go back.
@playful1510
2 жыл бұрын
Instead of the screwdriver+pliers trick, you could theoretically get a manual impact screwdriver to break the screws loose, but I'm not sure how safe it'd be to use in an electrical enclosure.
@Oh_fortheloveofpete
2 жыл бұрын
I like to stick the wire in the connector where you crimp it but instead of crimping it, I solder it. more secure and no need for crimping. just a suggestion you can try
@jeffgrant6914
2 жыл бұрын
Good video 👍 Chris
@Combat.Wombat.official
2 жыл бұрын
Insulation test (mega test) won't prove a good compressor, but a failed mega test will guarantee the compressor is failed. It is much much more reliable than using an ohm meter. In 20yrs the only problem I've had from a mega test was a Daikin Ducted Split 20kW would fail a mega test after 3 or 4 cycles due to heat, but that is a super rare occasion. It is the law to always mega here (Australia), supposed to be at 500v, I ALWAYS use 1000V, Anything remotely close to 1M Ohm at 1000V is a fail, if its even in the ball park it will fail in a few weeks so just call it now. Bonus tip, have your apprentice hold both leads while you press the test button when they miss behave, it won't kill them, but it will wipe the smile off their face.
@derrickgarcia303
2 жыл бұрын
I was told that you should only Meg to match the applied voltage to a device?
@HappilyHomicidalHooligan
2 жыл бұрын
Residential, Commercial or Industrial...NEVER, EVER RESET A BREAKER UNTIL YOU KNOW WHY IT TRIPPED IN THE FIRST PLACE
@HVACRVIDEOS
2 жыл бұрын
exactly !!! I will discuss this on my livestream tonight 9/27/21 @ 5:PM (pacific) on KZitem, come over and check it out kzitem.info/news/bejne/zY2t26Oie6Cpepg
@elijahtalbot5288
2 жыл бұрын
Nice video
@promisel1964
2 жыл бұрын
Please report tool abuse to the local authorities. Do enjoy watching your work
@drwhite21
2 жыл бұрын
Amazon they have plenty there
@MrEroshan
2 жыл бұрын
Whenever I had inconsistent breakers being thrown it was contact points welding themselves. It liked to happen in humid conditions.
@dimwittflathead639
2 жыл бұрын
Take your "jacked up" screwdriver back to the shop and sandblast the handle. You won't believe how much more pressure you can put on it. The pits from sandblasting allow your fingerprints to grab the handle more. Personally, I have to sandblast my screwdriver every year as my hand pressure smooths out the pits. If you also want to mark your driver, you can do what I did. I used a dremel and a solid carbide burr and put my last name in the handle over a quarter inch deep. I then filled the channel with epoxy a different color than the handle. Once it cures fully, sandblast it.
@mrfrenzy.
2 жыл бұрын
Wera Kraftform screwdrivers are made for this kind of beating and they have a hexagon shape to put a wrench on.
@Tanneritefilledfido
2 жыл бұрын
Its hard to get breakers now, major national electrical supply shortage right now
@MgoBlue24
2 жыл бұрын
You could use a screw driver that has a 11m nut at the base of the handle for using a wrench. Saves destroying a perfectly good tool
@mark351
2 жыл бұрын
There is a place for some Harbor Freight tools in your kit. You won't cry if they break.
@giorgosktoridis903
2 жыл бұрын
I dont know what kind of breaker you have there but if its mcb it only trips on overcurrent and short circuit between phase and neutral.you should measure the amp draw before changing the contactors and after
@mathewahrens4475
2 жыл бұрын
For a flag terminal crimper, just grind the cutting tips off of an old pair of crimpers. Boom! You have a free new tool!
@Pop_A_Chaderall
2 жыл бұрын
Have you used the MOhms setting on the field piece meters? ive used the Mohms settings and found some compressors that were not directly shorting, but were tripping breakers.
@TooManyHobbiesJeremy
2 жыл бұрын
Great job finding the bad compressor flag terminal
@gaunerchen1729
2 жыл бұрын
Perfect time!
@andyhill242
2 жыл бұрын
It's OK to talk, It's OK to be not OK.
@joecorbin5158
2 жыл бұрын
Walls and bridges we build my friends….. We are all Humankind😊
@grashoprsmith
2 жыл бұрын
The +/- on the capacitor is the manufacturing tolerance.
@rmhanseniii
2 жыл бұрын
Butt splicing those conductors introduces another place for failure, it probably would’ve been better to run just that one conductor back to its source, The other conductors seemed fine unless I’m missing something…. Or better yet just take up some of that slack that’s what it’s there for
@Monkeh616
2 жыл бұрын
He doesn't have a flag crimper and I'm going to make the bold assumption a terminal repair kit doesn't include 10 feet of wire. I probably would've left the others alone, though, yes.
@rmhanseniii
2 жыл бұрын
@@Monkeh616 … i’m lost how did he get the new terminal on the new conductor
@Monkeh616
2 жыл бұрын
@@rmhanseniii They're short lengths with a pre-crimped terminal so you can make a connection to the existing harness using more common crimps or some other form of connector. Mighty handy when the harness isn't readily removed from a machine. Also for adapting harnesses to other connectors.
Пікірлер: 202