Replacing a Inverter Drive on a TRANE XV20
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- Опубликовано: 30 сен 2024
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Can't wait to see the reaction of these home owners when the warranties run out on this junk, hopefully they invested in surge protectors.oh, the mystery leads are used for HP units (coil bottom sensor)
Not junk. I left a homeowners house just recently saying their power went from 450$ per month to 125$. That’s a ton of savings
youre the shit john!!!
Does that drive act like a 3 phase variable frequency drive?
jesse copeland yes the inverter creates 3 phase ac to run the compressor. This is how the speed of the compressor is varied.
Wow that’s awesome! I use vfd drives for whole house r/o systems with delivery pumps. It was new to me not long ago. I didn’t realize they were used in ac as well. Very cool.
you should clean the old thermal compound off the line first, wipe most off with rags first, then clean with rubbing alcohol and something without lint. then apply new compound :)
not sure how much thermal output it has there, but it must be substantial for them to "liquid" cool it vs fins and fan airflow. then again, maybe just a way to keep noise down.
by the way, you should try to keep the "grease" off your hands, being it's very fine silicon, zinc and other possibly other things mixed, it's very hard to get it all washed off your skin, fingernails and tools and you dont want to "eat" any of it later or worse yet, get it into your eyes!
Poof, there go the savings of this super high efficiency equipment.
Yup
10 year warranty on this model.
K9ADVCRU does that include service call and labor?
manhoot I work for a company thats a premier Trane dealer. They only warranty parts, not labor. My co workers tell me they “compensate”, but not enough? Cause we charge for warrantied parts anyway.
plus a whole week without air conditioner!
I HATE working on these units. The darn thermostats like to shut off the unit before I can even test things. I'm sure my frustration comes from ignorance, but I loathe every call I get with them.
We just got quoted $4500 to replace ours. It is working on and off. Have to reset the breaker from time to time to get it to work. 7 year old unit. Won't just sell us a new unit for outside have to replace both units for $18-20k. Will never buy another Trane at this price. We are the second owner and warranty didn't transfer because we didn't know WE had to transfer it within 90 days of buying the house. We have had many parts break on the units and have over 3k in repairs prior to this breaking including fan motor and module for 1k.. Looks great, but be ready to spend some money.
Accidentally spray some water on the board and the unit stopped, the display, status and communication light led was dead so i replaced it
Is there anything I can do to fix it, any fuse or wire burnt?
Hey wats up John. Love wat you're doing sir. I'm a tech myself I've been doing ac for 2yrs now and I love it so keep the vids coming brother
Do these XV trains have a run capacitor?
Inverter DC Bus capacitors hold a charge for a good while. Capacitors charge to the PEAK voltage of the incoming line, not RMS..... Be cautious, take a break etc after pulling the disconnect.
Always take pictures
Why was the cause of that drive went out?
Should do a how to troubleshoot video. Israel
Thanks for the info. I never replaced an inverter drive yet.
Nice video. What did you have to do to verify that the drive is faulty?
Jason Johnson you go into the menu on the CDA and run a drive test. It's a pass or fail.
I can only imagine what that part cost,hope its under warranty,or the customer is gonna take an awful beating.Cant stop a trane ,bull shit,better off without a trane.
IS that a loop of the liquid line or a copper heat pipe for heat dissaption? for the inverter board IGBT's........ You would think if they're trying to cool down the switching transistors, they syphon off a little of the suction line, being it's colder than the LL. You can never have enough thermal compound! lol.
Hello spector,
you are right ....... inverter on the suction line would be much more effective than on the hot liquid line.
Then you have to deal with condensation. The liquid line will always be ambient + a few °. It is clearly the right choice.
I don't think they're trying to cool the board, without seeing the wiring diagram an specs it appears to be one of two things or maybe both, I don't think the board runs hotter than the liquis line so they might be warming the electronics board or they're measuring liquid line temps to vary the fan speed accordingly
Probably a lot of extra $$$ for lil gain..
They could also be trying to keep the board at a constant temp, instead of having it at ambient
J B no man those boards get way hotter than a liquid line they wouldn’t be trying to heat an inverter board
Drive made in Hungary...
At least it ain't china
YELLOW wire is Crawdad/Mudbug Sensor! :) 3:00 John and the Group; the "unused YELLOW wire connector" I believe is when the unit is also used as a Heat Pump. The schematic's Note 4 says "* Only used on heat pump models and not used on AC units". It is labelled as CBS, and has a connector to the inverter board with yellow wires. ON a HEAT pump variant, the extra CBS sensor (outdoor coil temperature sensor) is used to stop the Defrost cycle. In a Heat Pump the inside coil is warm and outside coil is cold; thus a defrost scheme monitors the outside air temperature and the outside coil temperature too.
That's pretty high-tech looking. Is that the super expensive equivalent of replacing a capacitor or is there on in there somewhere?
Lol no capacitor
How long did it take u.??? I have to do this tommarro
Just more junk to deal with.
Why you did replace the Drive?
Where are you located and do you have a po. Box?
How you know it was bad board??
God I’d hate to know what that thing costs
Looks like a good do it yourself kit
I hope you changed the time and date lol good video, keep it up!
Hello Israel,
why is this inverter bolted to the fluid line?
the inverter generates heat during operation and must be cooled. however, the liquid line also becomes hot during operation. so she can not cool the inverter after all? or is this thin line part of the suction line?
then the function would be ok.
Greetings from Germany.
walter f. The inverter drive runs much hotter than the liquid line. Thus the inverter sinks heat to the much cooler object. The liquid line can sink an gigantic amount of heat.
How would you test DC voltage from the board to the components?
With a voltmeter.
Good work john
Not trying to pin you down on price, but what retail range would that drive go for? Looks expensive as hell......progress.
Not sure about this drive specifically, but I do know carrier inverter drives are around 2 grand just part cost alone. So I can only imagine somewhere in that neighborhood.
damn..
It has a 10 year warranty, but you have to get a replacement code from a service rep.
Where is Michael
Nice
how did you know the drive was bad
Scroll through CDA menu, other component he replaced or visual inspection of board
thanks I have never had to work on one yet I don't sell anything like that and I've never seen it I know one day ill run into one
my experience with bad drives usually were because they would not power on or the display would be malfunctioning/glitchy and in that case the display can be replaced but the drive can be sent out to a shop that specializes with drives to be repaired. you should be able to control the frequency output to the motor manually and the motor should run accordingly.
Great vid,plz what was the yellow wire for
On my identical unit that plug is just hanging there unused.
Good vid John ...
How old is it?
seroxide unit built October 2014
What a disaster why does it need to be over engineered like this
It is not very overengineered imho. Two three phase motors, a pressure sensor, a temperature sensor and an EEV is all you need. It is not decades old tech like it used to be but it is not really complicated.
ask Obama and the "green boys" yeah the same one that make and use tons of useless wasteful junk daily, as they scream green and savings ;)))
Money.
You know Ralph ran to watch this
That was a first.. can’t wait to do one out in the field.. you da man John.. please keep em comin’!
I’ve noticed many manufacturers will show wiring diagrams of units...that isnt the one you’re working on. They’ll label each model number type, to each part of the diagram, I’ve noticed these in the old 2TEE 4TEE Trane units(AHUs). So you’ll get parts and extra wires that aren’t the unit you’re working on. I find it very foolish
First.
Inverter failures occur much more rarely than run capacitor failures. Inverter units keep the room temperature more consistent and eliminates cold spots and hot spots.
only because they want you to buy their new junk and pay out the wazoo for something that wont last either. there's tons of units out there from the 70's still working perfect, with all original parts and never gauged up on from original install ;) "hint" they are mostly horizontal flow condensers and owners that have covered them for winter.
-Inverter units last longer then capacitors agreed
-inverter units keep a more consistent temperature agreed
-inverter units eliminates hot and cold spots.... somewhat that goes more back to duct design
So is it the case that these Trane Multi Stage units don't have run capacitors?
I was going to order a run capacitor to have on-hand (since I'd do that with past units), so I opened the unit to get the run capacitor specs and I saw this giant inverter, and I was like, "Yeah, this isn't a normal AC unit."
0:38 & 3:30 It appears that that yellow wires were not connected to anything before you even removed the old drive. How confusing!
Brian Kerber a tech tip is to shoot images of stuff before one removes anything
That is kind of what was done here with, except with video, at the time stamps above, you can see the in the beginning it wasn't even used/connected. Strange why a manufacturer would put something "unused" in a device as it would eat into their profit margin.
Brian, the same Trane inverter module is used on the sister model that is an AC plus Heat pump. The yellow wires are on the schematic as a CBS, an outside coil temperature sensor on the Heat pump variant. It is cheaper to stock one module than two variants with only one extra pair of yellow wires and connector. Hope this clears up the concern. If there were two variants the inventory costs double at a supplier. Where I live the county taxes inventory too, thus you pay 2.2 percent per year for every 100 bucks in inventory; forever.