Well done. I’m working on one now. Same unit. Leaky unit since start up. Took a minute, but after looking through the system on a pc, saw Circuit 1 down again to 78 psi. What I don’t like is that there was no alarm. I figured after so many start attempts it would generate an alarm or the LP read would do it. Standing pressure of R410 is relatively high, even on cold days. But no such luck. So had to dig a little to find the issue. Contractor coming out to do the warranty work on it. So just hanging and saw your vid.
I'm with you Bro when it comes to Aaon RTUs. Right now I have a 12 year old 100% outside air RN-050 serving an automotive service shop. 20,000 CFM, 2 desiccant wheels. 2 compressors down and a condenser fan motor. It's repair or replace time. $196,000 smackaroos and a 26 week wait. Fortunately we have 4 Carrier 10 ton units doing a fairly good job of carrying the load.
I'm working on a Daikin/Goodman 15 ton. Zero Charge. Pumped it up with trace gas and nitrogen to 350 psig. It is a extremely windy day and I cannot pin point the leak. There is a oil stain on the complete width of the bottom of the coil. My sniffer is going off in several spots but not consistently. I finally used bubbles. No luck. I wanna either evacuate the other circuit and cut the coil out and try repairing at the shop on a work bench or replace the c.coil all together. My boss claims there is no leak you cannot find AND repair. If I wasn't dealing with a extremely windy day. I may be able to pin point leak (s) .I feel I am letting my boss down for not finding and fixing it. Another thing. Daikin uses 1/4" tubing which makes the rows tight where if you try and cut the alum.fin away , you risk damaging the other circuit tubing by either denting it or gouging it and creating another leak. Anyones thoughts ?
First recommendation is to do the job on a nice calm day as I agree the wind will make it extremely difficult trying to locate a hard to find leak. I agree with your boss in most situations a leak can usually be found. I have had leaks were the nitrogen pressure test didn't drop over a day and yet I was able to locate a small leak with soap bubbles. I never liked working with ultra sonic leak detectors but electronic sniffers work well. If you are hitting on the sniffer check throughly in that area with soap bubbles. Put it in a pump sprayer and cover the entire coil if you still cant find it. If it is embedded in the coil you will have to push the fins out of the way and if you concerned creating a leak in the other circuit you could pull the charge out from that circuit to be safe but that might be a little over the top. Make sure you check the U bends of the coil and the tube sheet at the ends of the coil as well. If there is signs of oil, thats a good place to look. Removing the entire coil sounds like a lot of added work thats probably not really needed. Sorry for the Response
@@travismichael502 Thanks. Sorry for a delayed response. Yeah, I found the leak right after posting this comment. It wasn't anywhere near the oil stains AND I could not figure out how the oil could migrate so far away. The leak was on the condenser coil manifold . There was absolutely no traces of oil in this area. No dirt build up.....nothing . I found it as I was releasing a mixed charge of nitrogen and 410A . ( I DO NOT trust my sniffer picking up 100% nitrogen on a small leak.) As I was releasing out the test charge and only then liquid refrigerant started pissing out the hole . As soon as I shut my gauges off. The liquid stopped coming out. Never encountered that before. Lol ....Normally as you put more pressure in, you tend to see something come out , not as your releasing a holding pressure. This all happened as soon as my boss showed up and had one foot on the roof, like he was my good luck charm . Both of us had suspicions that all the oil was from another leak. We both checked it out. Could not find anything, so I put a 400 psig of 100% nitrogen and left it for 3 days. My gauge did not drop 1 lb. I fealt better about the job giving it a few days on a charge. I feel we did a good job and went thee extra mile for customer. Not to drag my story any further, we weren't the stores ( Ross Dress for less) contractor but we work for the Property management group. They initially sent our company to do a second opinion. Most of the time we get the work. Lennox takes care of store and was probably more expensive. Anyway.... Thanks for your response. We have a fun job don't we ? Its not always sunny and warm, things don't always work out in our favor, we bust our asses more then we don't, but its still a cool job.
As far as I know everything will be covered under the warranty, I will be doing up a follow up video when we do the repair so make sure you check back, just may be a little while until the parts arrive.
We replaced the condenser fan motor and blade on an AAON unit as well as doing a PM. Shaft came loose on the motor it could have been bad. I'm learning about them but getting parts etc isn't easy as i was trying to order a fan belt, filters and for 2 weeks i kept calling about them. Finally they tell me i didn't have a credit card on file so they could not order the parts. 2 friggin weeks!!!!!!!! IDIOT'S.
2 weeks that’s crazy! Yeah we have experienced some difficulties getting things with them as well. We’ve order fan motors, blades, brackets, gave them the correct model and serial numbers and still got the wrong items.
This is very good you replacment every part not working.
Well done. I’m working on one now. Same unit. Leaky unit since start up. Took a minute, but after looking through the system on a pc, saw Circuit 1 down again to 78 psi. What I don’t like is that there was no alarm. I figured after so many start attempts it would generate an alarm or the LP read would do it. Standing pressure of R410 is relatively high, even on cold days. But no such luck. So had to dig a little to find the issue. Contractor coming out to do the warranty work on it. So just hanging and saw your vid.
I'm with you Bro when it comes to Aaon RTUs. Right now I have a 12 year old 100% outside air RN-050 serving an automotive service shop. 20,000 CFM, 2 desiccant wheels. 2 compressors down and a condenser fan motor. It's repair or replace time. $196,000 smackaroos and a 26 week wait. Fortunately we have 4 Carrier 10 ton units doing a fairly good job of carrying the load.
do videos on the 100 ton AAON UNITS. this video was great.
Next time I am on that job site I will. Thanks for the comment!
Keep working on those Aaon videos!
I am glad you enjoyed the video, I do have a some more content in the works including additional Aaon videos.
I'm working on a Daikin/Goodman 15 ton.
Zero Charge. Pumped it up with trace gas and nitrogen to 350 psig.
It is a extremely windy day and I cannot pin point the leak. There is a oil stain on the complete width of the bottom of the coil. My sniffer is going off in several spots but not consistently. I finally used bubbles. No luck. I wanna either evacuate the other circuit and cut the coil out and try repairing at the shop on a work bench or replace the c.coil all together.
My boss claims there is no leak you cannot find AND repair. If I wasn't dealing with a extremely windy day. I may be able to pin point leak (s) .I feel I am letting my boss down for not finding and fixing it.
Another thing. Daikin uses 1/4" tubing which makes the rows tight where if you try and cut the alum.fin away , you risk damaging the other circuit tubing by either denting it or gouging it and creating another leak. Anyones thoughts ?
First recommendation is to do the job on a nice calm day as I agree the wind will make it extremely difficult trying to locate a hard to find leak. I agree with your boss in most situations a leak can usually be found. I have had leaks were the nitrogen pressure test didn't drop over a day and yet I was able to locate a small leak with soap bubbles. I never liked working with ultra sonic leak detectors but electronic sniffers work well. If you are hitting on the sniffer check throughly in that area with soap bubbles. Put it in a pump sprayer and cover the entire coil if you still cant find it. If it is embedded in the coil you will have to push the fins out of the way and if you concerned creating a leak in the other circuit you could pull the charge out from that circuit to be safe but that might be a little over the top. Make sure you check the U bends of the coil and the tube sheet at the ends of the coil as well. If there is signs of oil, thats a good place to look. Removing the entire coil sounds like a lot of added work thats probably not really needed. Sorry for the Response
@@travismichael502 Thanks. Sorry for a delayed response. Yeah, I found the leak right after posting this comment. It wasn't anywhere near the oil stains AND I could not figure out how the oil could migrate so far away. The leak was on the condenser coil manifold . There was absolutely no traces of oil in this area.
No dirt build up.....nothing .
I found it as I was releasing a mixed charge of nitrogen and 410A .
( I DO NOT trust my sniffer picking up 100% nitrogen on a small leak.) As I was releasing out the test charge and only then liquid refrigerant started pissing out the hole .
As soon as I shut my gauges off. The liquid stopped coming out. Never encountered that before. Lol ....Normally as you put more pressure in, you tend to see something come out , not as your releasing a holding pressure. This all happened as soon as my boss showed up and had one foot on the roof, like he was my good luck charm . Both of us had suspicions that all the oil was from another leak. We both checked it out. Could not find anything, so I put a 400 psig of 100% nitrogen and left it for 3 days. My gauge did not drop 1 lb.
I fealt better about the job giving it a few days on a charge. I feel we did a good job and went thee extra mile for customer. Not to drag my story any further, we weren't the stores ( Ross Dress for less) contractor but we work for the Property management group.
They initially sent our company to do a second opinion. Most of the time we get the work. Lennox takes care of store and was probably more expensive. Anyway....
Thanks for your response. We have a fun job don't we ? Its not always sunny and warm, things don't always work out in our favor, we bust our asses more then we don't, but its still a cool job.
Why have separate condenser fan compartments? Recipe for disaster. We have several AAON units. none have closed off compartments.
Amy update to this? Aaon warrantying everything?
As far as I know everything will be covered under the warranty, I will be doing up a follow up video when we do the repair so make sure you check back, just may be a little while until the parts arrive.
I’m working on a 25 ton system and the compressor #1 makes aloud noise it sucks
VERY NICE - 👍
great
Damn good vid keep it up. it had backfired on me many times, always do diligence
Thanks! Yes I have learned from my past experiences as well.
😂 heatwave at 98. That’s chilling temps
Get yourself a utility wagon for these jobs, save your back and knees from all these trips
It is a aaon unit supposed to leak.
We replaced the condenser fan motor and blade on an AAON unit as well as doing a PM. Shaft came loose on the motor it could have been bad. I'm learning about them but getting parts etc isn't easy as i was trying to order a fan belt, filters and for 2 weeks i kept calling about them. Finally they tell me i didn't have a credit card on file so they could not order the parts. 2 friggin weeks!!!!!!!! IDIOT'S.
2 weeks that’s crazy! Yeah we have experienced some difficulties getting things with them as well. We’ve order fan motors, blades, brackets, gave them the correct model and serial numbers and still got the wrong items.
@@travismichael502 It took a week after that to finally get all the filters and belts. Good luck with your project.
Over controlled units
Because it’s Aaon guaranteed leak
Too many bells and whistles on those units,never liked them.