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VSD IGBT Change York Air Cooled Chiller HVAC Training for HVAC Technician
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- Опубликовано: 16 фев 2022
- I cover the full procedure on how to change IGBT on VSD in a York air cooled chiller. These components are also known as an inverter and VFD. This is a step by step guide for this repair. HVAC Training for HVAC Technician
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All the screws on wires and IGBT have torque specs. Use them. Will cause high base temp lockouts in the future. And you must clean the bus lami ate structure with alcohol pads, until its clean.
If there is not a consistent spread/layer of heat compound it can cause high baseplate temp faults as well.
@Brian Wolf Yes, that is a 7,000 dollar board. And almost a 20k job depending on what part of the country you're in. Just need to use best practices
@@knowledgeunderstanding4192 are you referring to the plate under the board with the old paste?
Agreed bro
where can you find the torque specs?
I appreciate you taking the time to show your apprentice and explain the process.
You've also helped me when it came to writing my final. All the extra little tidbits of info really help make thinks click
These guys are blessed buy God working with this guy.
Thanks I have this repair coming up once parts come in. Thanks for sharing I know what to look forward to now.
Brother, thank you very much for the real great information. We will meet, God willing, in America,,, I am from Algeria🇩🇿🇩🇿🇩🇿💖🇺🇸🇺🇸🇺🇸
thanks for sharing your skills and knowledge much appreciated
In most variable frequency setups it goes Ac voltage, rectifier(diodes), capacitor, igbt switches. And the controller handles the hz. It's definitely interesting to see the many applications of variable frequency.
Wow nice
What was the fault or error that indicated an IGBT board changeout on this unit? Great detailed presentation of changing the board.
Gate fault
@@HVACTIME what troubleshooting did you take to find this? Gates lead you to the VSD but what actual check? Output voltage, something physical or just the growling sound? I am guessing the capacitors were good, the snubber is good and the only thing left was the board?
I'm also changed igbt in York chiller when chiller show alarm vsd c plate high temperature.. and problem found base plate C not show temperature then I'm changed new igbt now chiller properly running
Thanks again for the videos!!!
🥃🥃🍺🍺🍺👍🏻
Good thanks for knowledge
Nice uniforms my office uses the same ones
What are causes for the IGBT to fail? We have had one supposedly fail but cannot get a definite answer as to the cause of its failure. The unit is 6 years old and a YVAA power pole assembly is not cheap to replace without an answer. Thanks for the great knowledge you provide!
Great job tech
Thank alot for this video
Hi. My system fuse 20FU still keep blowing. could it comes from relay board failure or..?
I have a ycav 150 ton with VSD communication loss. They have replaced the VSD board I checked trigger board per spec. So we had an extra micropanel board just need eprom & sd card programmed from JCI. On the right track?
Great video. I’ve got an issue on one of these where the overload setting on circuit two keeps changing to 175A from 225A and trips the chiller out on overload. OL potentiometers are glued and have not been changed. I’m guessing a new a main board?
Very.NICE
Like this
Typically resistors are bled within 5 mins. Always worth a meter check but no need to wait 10-15 mins
Ive had them take 15 minutes to fully discharge. If im not mistaken the factory spec's call for 20 minute discharge cycle. Id rather my techs play safe on it.
FWIW If one of the bleed resistors has failed, there is no safe time to wait. ALWAYS check DC and AC in multiple points on any piece of equipment before sticking hands in. Anyone with a license has been told this countless times.
@@HVACTIME absolutely!
Peace be upon you, my friend, how are you? I want a solution if you have an idea for this problem YORK brand chiller displayed barrier control lock problem

Same chiller alarm is "high dc bus voltage" why this alarm & how to repair this alarm ..plz help me, I am from Bangladesh. Thanks
Sir,I have one doubt York air cooler chiller capacitor busted vendor changing new capacitor replaced but again capacitor busted,what reason sir capacitor busted?
Hell yeah man
Thank you for the video. What’s up with the board to the left? What’s that called? Noticed some snubbers on that one too.
That is another circuit IGBT. There are a total of 3 IGBT (1 per compressor) on this drive kit. They share the same capacitor bank and SCR's.
Kinda curious about the reason you change it ?
It was creating harmonics in the compressor which makes a loud growl sound. When the gates get weak they can start doing that.
@@HVACTIME interesting, does it happen often ? Thanks for the reply ^^
What is the reason vsd burn out?
Sir i have paste from YORK name is HEAT TRANSFER PASTE. And THERMAL PASTE is same...Because brand is defferent
How troubleshoot high flash tank level in York chiller
First thing you need to do is check the sight glass on the flash tank and check the liquid level. It should be around the middle of the site glass. Ifyou can’t see the level it os either below or above the sight glass. If you point a laser into the sight glass you will see the laser streak goong through the liquid, if it is low you will only see a dot. If you confirm the level is high you will need to manually crack open the flash tank drain valve on the controller allow the liquid to drain to midpoint of the sight glass and recalibrate the level sensor.
Sir please tell me York screw chiller fault low discharge suprheat alarm please tell me solution
Replace discharge temp sensor
hi sir tel me one think trane chiller RTA210 alaram lachad fulat tell me solustion plz
Thats not an alarm, need to keep scrolling to see actual alarm.
How much new IGBT bord
TRANE guys are doing YORK 🤔
Hi How Are you sir
Yes sir