Trane RTAC Leak Repair + Oil Filter Part 1
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- เผยแพร่เมื่อ 28 ก.ย. 2024
- What could have been a pretty quick fix turned into a lengthier ordeal when isolation valves on a Trane RTAC chiller didn't hold. Leak Repair + oil filter change on screw compressor. Like, comment, and subscribe for future uploads. Will post follow up video when job is complete.
This guy has been running hvac for over a decade definitely a guy to watch
Thanks bud , back at you. Sick gaming channel
I’m watching, Great stuff on here , Thank you , This channel should take off soon
I don't know how all these large commercial TH-cam accounts went under my radar til I started searching for CGAM and RTAA videos
Coat the entire gasket in oil , nylog, or what i use vacuum grease. Will be easier to get the gasket off next time.
Did you send the oil in for analysis by any chance
No sir we did not . But we came back a month or two after this call for all the chillers on this school district and submitted oil analysis as part of the annual pm
@lammaking333 nicely done...oil analysis is a big key to spot a potential major issue
Hello, about the compressor low oil flow failure. my chiller has 2 compressors on the circuit and one of them has a low oil flow alarm. the oil level is ok. what could it be in this case?
Depends on the make and model
Of the chiller and it’s components. But it could be a dirty / clogged oil filter or strainer or oil pump not operating properly if you can visibly see oil in a sight-glass
Dirty co dessert coils can give you an oil alarm. Cant remember the numbers, butnif the oil temp is close enough to SAT discharge temp it will alarm on oil flow. Usually tranr uses the top couple rows of the condenser for oil cooling. So dirty coils will give you elevated oil temps
If its a RTAC, more than likely the oil filter or check valve that sits in front of the filter.The IOM has the formula to calculate the oil flow ratio.If ratio is too high you will get that alarm.Also make sure transducers are reading properly as the computer is using transducer pressures to calculate the ratio.If high ratio is confirmed, I would replace both the check valve and the oil filter since both involve pumping down and opening the system.2" deep socket needed to replace that check valve.
"...bleeding out the remaining fumes of the refrigerant..." Is that normal? On large chillers those fumes could mean a lot of pounds of refrigerant.
Do you often work on large chillers? This is a completely normal de minimus release. When pressures on both sides ( low and high ) are under 8 psi or even lower , there’s no way to fully recover remaining fumes of vapor left - even if you bring your gauges to zero out - disconnect your hoses and there will still be vapor in the system. Now a days newer recovery machines just as the new field piece will even cut themselves off at around 2-4 psi. Totally normal to vent off vapor at that low of remaining standing pressure - and now , it’s not “ a lot of pounds of refrigerant “ - I’m the YT creator for this video responding on my personal page . Hope this comment helps - thanks for watching. When recovering 100+ pounds of refrigerant , you are not going to be able to suck such a large circuit down into vacuum through a recovery process
@@lammaking333 Thanks for answering the question. I didn't know. Largest chiller I have worked on was an RTAC1554. I have worked on York and Carriers scrolls of similar size or smaller. I will look into recovery practices of larger chillers. And yes, your comment helps.
I just enjoyed this video,,,,,I what lean something 😊
good job from fellow DFW tech
Thanks watching ! DFW techs are bad ass 👍🏼
If that was a semi I’d say oil looks like 10+ years old/or dirty system/or running hot.
Pre normal for a screw chiller tho considering compression ratios, you’ll get that darker tint on the POE pre quick from the elevated DLT
Great video I’ve never worked on chillers, always been curious as to their operation. I’ve worked mostly on supermarket refrigeration and for the most part I was able to follow along. We have oil filters and the same kind of drier cores. What would you recommend to learn more about chillers?
Read Manufacturer IOM manuals. They are usually much more detailed and in depth as far as each operation of the system when compared to regular DX cooling units. There’s also a great channel called HVAC TIME . He works on chillers a lot and is very knowledgeable
@@dfwhvac great advice thanks !
Trane has a training class specific to the RTAC chiller in LaCrosse,Wi.They spend 3 1/2 days covering everything front to back if your Company is willing to pay for it.
Great walkthrough! Great information!
Thanks my guy ✅
Keep doing your thing!
Is that where you add too?
Great content , Thanks for posting
Thanks for watching . Been busy on a contract that doesn’t allow filming on site , but will try to get some more content out soon.
Thanks for thus great tip to keep the chilled water pump running when on recovery mode,I know that this has to be done when breaking a vaccum.
Yessir , recovery and charging should only been done with verified water flow on chilled water systems to prevent potential freezing issues in the tubes or heat exchanger
Thanks A lot enjoyed watching this video.found ur cannel accidently
Thanks for watching
Great video man! Thanks now I feel alone more confident cleaning the oil filter.
Great to hear man and glad I can help ! They’re intimidating at first but if you have someone show you how to do it it’s not as hard as you’d think ! That’s why I make these videos
Is that chiller also
Yes sir , it is an air cooled chiller with screw compressors . R134A refrigerant
Nice work 👍