GREAT SERIES SIR! Thanks so much. Your skill set as "handy man" are excellent. I watch a lot of other channels with some great journeymen HVAC guys but you hold your own against them as far as installs for sure. I am not an HVAC guy but I am a DIYER that just trys to keep his crsp running and I sure appreciate the knowledge you pass along. Keep the good stuff coming!
@@diyhvacguy you stated that a micron gauge is optional and that letting you vacuum run a couple hours should get you where you need to be and I believe ya. But is there a reasonable gauge a diyer could purchase? These seem a little pricy. Have thought about maybe doing some handy man work when I retire but...? Don't want to drop alot of money for just a once or twice use. Any help appreciated. Also...I have a pump and gauges for automotive a/c work. You mentioned a residential pump. Will my automotive pump get me pulled down to an acceptable level?
@@hitekrednek66 yea, totally optional. The first few years doing hvac I never owned a micron gauge. Just really check your weld joints with a mirror and let the vacuum pump run for several hours.
Thanks for doing this video series as I’m looking to possibly do this exact thing. One question I have is my old ac is r22, can I use the existing line set with the r410? I will be doing both condenser and coil replacement. Thanks
@@robertpearson8989 hey! Yes you can certainly leave it, as long as there was no burnout. As soon as you open the lineset up you will know, but if your system is still running and you are upgrading then you are fine to swap it out and don’t need to do anything with the lineset. It is not very common to get compressor burnout but if you do, you will know it. When you open the lines you will be greeted by the nastiest burnt acid smell you’ve ever smelt. It makes differential fluid smell like roses 😂 I’ll have to do a video on compressor burnout.
R410a was mandated in new systems in 2010. R22 was still being manufactured and sold until 2020 just 4 years ago and reclaimed R22 could still be used in R22 condensers after that date. When he says systems 30 years ago are still running strong WITHOUT nitrogen brazing, he's talking about R22. The problem with R410a is it's scrubbing ability to clean all that carbon off the inside of the line set, which R22 could not do. If you can't flow nitrogen don't braze. Use Stay-Brite 8 and solder your fittings using MAPP gas or acetylene if you have it. The lower temperature won't cause the buildup of containment's like brazing with oxy-acetylene will. Make sure its Stay-Brite 8 and not just plain Stay-Brite. There's more silver in Stay-Brite 8 and it makes a difference.
Thank you! Can I reuse my R22 line set with R410a? It sounds like no. What say you? Also, from what I have heard the powers that be cannot seem to settle on a refrigerant for AC, ( Not that this surprises me in the least, every govt agency I had any contact with in my career could not find their collective asses with both hands) I hear that they might go with Propane??? Wait till the Liars ( Lawyers) get ahold of that one. 😂
@@JamesAgans Yes you can reuse your R-22 line set but you have to flush it out first. There's videos on how to do it and you can buy the line flush tool for about $25.00. I used tolulene first and then acetone. Worked good.
If you don't have a nitrogen tank, you can pressures test with the vacuum pump. Pull a vacuum, then let it sit for a few hours and see if it has moved.
Brazing for those who have never done it, can be challenging. When I went to HVAC school some guys couldn’t get the hang of it until about 4 tries. The first time it may come out bad. But DIY give it a shot on single pipes on a table vice first
You have no idea what this video means to my family. This has saved us so much money because I have been able to learn how to do this repair on my own.
Was hvac tec,a lot of chill water,retired, now at 65 I'm back to working with more splits,410,22,units,your material is a good refresher for me,thanks. ✌️🙏
Finally someone has put together a series that is complete and easy to understand. Thank You for putting in the time and patience on creating this video and explaining the process of installing an AC unit. You made this series very easy to understand. Well done.
Great job on video. So you don’t use flux when brazing? I have only done plumbing copper pipe. Need to head to Harbor freight and get a torch set. ❤ Will practice my first braze in a scrap piece. I need to replace my 1.5 ton basement unit. Now I just have to figure out how to buy one at wholesale prices. Yea, I am cheap. 😅
Thank you so much for the work you are doing here. This is very helpful for a small percentage of people out there who are willing to try this. For most people, they now know they don't want to try it. Sorry for all the "Pros" who are giving you crap about teaching their secrets. They are understandably a little insecure when people see how easy it really is for the thousands being charged. Probably no harder than doing a brake job on your car and a lot less risks.
1:05 - no brazing was needed 30 years ago. Very different temps with R410A that create oxidation that will clog that 0.7 piston. Wonder why you didn't suggest Stay-Brite 8 way for DIY that doesn't need high temps and nitrogen flow, much easier to fail with brazing cooking valves off.. 14:25 - standing vacuum leak test is 10 min I believe. Still very useful.
plumber and weekend warrior here. love the videos, very straightforward and without frills. my junky home unit's fate is sealed for the scrapyard. tradie to tradie, don't quench solder/brazed joints right after you're done, enough thermal snap can lead to microcracks and insanely slow leaks. Something about atoms in stacks between dissimilar metals and how they cling to each other. Wiping it down with a damp rag prevents acidic flux materials from sugaring the copper but give it a minute for them all to become friends.
Cool thanks for the tips! I’m always worried about overheating the king valves but this is good to know. I haven’t overheated one or messed up any seals yet!
Excellent video! Thank you, Sir! One tip for brazing I learned awhile back is to use the torch flame opposite to where you apply brazing rod and let the capillary action take place to fill that gap. If You use this technique your brazing connections will look quite neat and less messy. Basically, you don't need to torch the rod directly.
thank you brother for the videos. Im in south florida and the heat some times is overwheling.Ive been in consruction all my life and always had a desire to learn more about different trades other then my own carpenter.thank you because of you i was able do my daughter home from r22 to 410a 3,5 ton goodman from your videos thanks again for sharing your trade with all of us and not giving a hoot about the haters,
Awesome vids! My first time doing a split ducted system and your series broke it down perfect! Excited to do this swap from 25 yr old gas furnace to inverter heat pump!
Awesome man! Hey if you need some additional help during your hvac replacement process, check out our Patreon membership at Patreon.com/diyhvacguy where we’ll give you one on one assistance throughout the whole process! Cheers man
Excellent job helping us to not only do the job but more importantly understand how it all works. This is crucial to learning. You are a great teacher and skilled practitioner. Well done!
Great tutorial bro…I plan to tackle a replacement of a 30 year old split system. The air handler is in the attic though. Condenser outside. You explained everything clearly. I appreciate you taking the time to explain everything in detail. Other folks watching….give this guy props for producing such a detailed video.
Hey thanks man, if you would like some one on one help with your install feel free to sign up for our membership over on Patreon.com/diyhvacguy where for $25/mo (cancellable at any time) we will give you one on one assistance with installations, diagnosing, as well as warranty info! Cheers, Dave
Quick tip from an HVAC tech. At the end after you're done testing pressures you are taking refrigerant out of the system... as long as your guages are clean and haven't been used for leak checks an what not you should take your high side off leave the low side on and open your guages to put the refrigerant from hoses and guages back into system.
So typically for an accurate reading, you should typically put your micron gauge as close to the system as possible, and as far from the vacuum as possible.I usually place it directly between the line and high side of the system
Your feedback about other anticipated tips is excellent. I was asking the same questions at the time you were doing something and no later than a minute or two here was my question answered while watching the video. Dude ur simplicity makes the series great. You should be a instructor.
Man, thank you so much, I am a DIY. I do a lot of stuff myself. This is one thing that I have not been excited to do… we are going to install central air in a house. We just purchased, after watching your series I feel super comfortable with it! Thanks for taking the time!
If you need remote support, check out Patreon.com/diyhvacguy We can help with sizing, walking you through the install, and even help with getting your warranty. Best
Cause of your video I got HVAC tools and got two unit installed for my family and save thousand of dollar. I already have online class before and read a lot of book. Need to get EPA license next . Thank you
Great job- explaining in the mostly easy way and not all that technical mumble jumble- I’ve been doing my own repairs and installation for over 20 years. Your videos are simple to understand- great job!!!!!!
always open the suction valve first, any oil released will be drawn back into the compressor when starting the unit. good idea to clean your tubing before you cut it to prevent contaminates from the sandcloth entering the tubing. carbon buildup from not purging dry nitrogen can damage the system. removing the coil before lifting the coil box into place makes the job easier. installing the electric after brazing will give you better access to the tubing for your braze, espeacially in tight conditions. when installing a 410 system in place of a 22 system you need to at least flush the system, the oils are not compatable and can destroy your compressor.
Thanks for providing constructive feedback. Many people say good job, mostly cuz they don’t understand the process. They cannot point out mistakes or unexplained procedures. However his video series is good enough to begin somewhat.
We had our 3.5 ton go out on us 2 years ago, was quoted $6k by a company. We talked the tech into doing it himself on the weekend. We bought the inside & outside for $3k and he charged a $1000 to do the labor. Considering he had a buddy to get into the attic and remove/replace the evaporator, I think it was a really good $1000 spent. My daughter's house will need one soon. I'm REALLY tempted to invest in the gauges & torch & Vac Pump, but for $1000, I might take the easy route. Either way, THANK YOU for showing how really simple it all is. It's the copper that has me spooked...
Someone told me a week ago you could not braze a/c lines without nitrogen. They claimed it would stop up the txv. Guess they were wrong because my txv is fine.
Thank you for doing this series. As a retired appliance and refrigeration tech, couple comments. No hate here. I think the twin tank set up is overkill for the DIY one time shot. I used just a turbo acetylene torch for 40 years is fine.Your flame size was wicked long to try and corral it. Clean joints and proper size tip. Suggest using heat paste on joints and hit with wet rag after. To all the techs saying" you've got to use Nitrogen when brazing ! you'll kill the system ! " Millions of units running 20-30 years old before this concept "required" I install my system 19 years ago, no problems until drain pan rusted last summer. Why not braze lines at air handler with cover removed since it's slotted and reinstall cover after ? Burned panels looks very amateurish. (not that you did) As far as burn out comp. worries, haven't seen one for 20-25 years. Good to mention it anyway. Question about worrying over super heat temps. If the unit is pre-charged matched to coil, lines are evacuated when have you had to tweak the charge from super heat ? Seem to me it has to be really close optimum already. Thanks again.
Regarding Nitrogen purge I think on newer units with TXV valves you don't want the oxidation getting into the system and blocking the small passages in the unit. Either way it's not a bad idea. I know it's absolutely required on Mitsubishi VRF installations and on those you pressure test with Nitrogen and pull a vacuum 3 times to really remove all moisture in the line sets.
@@memsu06 Thanks for explanation. Are the TXV valve ports smaller than equivalent capillary lines I.D. ? If so, I could see the logic. Teach an old dog.. Thanks
This is really great information and I agree that this is valuable to anyone if only to learn how this work should be performed. If anyone has a home warranty you need to learn more about how this work needs to be done.
Love your videos. Currently going through HVAC school and these instructions have definitely given me more confidence. Quick question, though. I was taught that putting nitrogen in your system before brasing is not optional. it's a requirement. Is there a reason you wouldn't have to?
Great vid and explanation…question/curious: Can you use solder and a propane torch to sweat the copper joints, just like you would with regular plumbing or is it a must to braze as you have?
This series was great. Your explanation was so easy. You gave me the courage to replace my unit myself. I will try it this summer. Thank you soo much!!
Great video but I would like to ask a couple of questions as I’m still new at this stuff. I always understood that a liquid line dryer should always be installed on a new installation or anytime you open up a system yet I watched the entire series and did not see one installed. 2nd question- I was always taught to keep vacuum gauge as close to the unit as possible and use core removal tool to isolate gauge from the system when introducing the refrigerant? But other than those items I think you did an outstanding job in explaining each detail. Keep up the good job my friend!
Aces all the way , excellent fundamentals start to finish 🤔 left me utterly confident on doing a mini split install , clear and concise guide complete 🎯💎☝️🙏✌️
Thank you very much for all the helpful information very detailed info gives me motivation to tackle a job like this at home if need be and will save me alot of money and still gives me a chance to purchase some new gadgets. Thanks again
Excellent video! Thorough and very detailed. One thing I'm wondering at the end of all 3 episodes was whether it is necessary to top up the system with refrigerant due to the line set. One may say that the condenser is pre-charged with enough refrigerant. But what about such a case when you have exceptionally long line set? 2X or 3X as long?
The Goodmans are charged to 15 feet. Any length over that will take 0.6 ozs on the 3/8 liquid line, or to be more precise for Goodman, 0.74 ozs on a 3/8 liquid and 7/8 suction line per foot past 15 feet. 60 foot run, minus 15 feet equals 45 foot line length x 0.74 equals 33.3 ozs additional R410a.
Great series, I wish this was available 30 years ago when I installed my system. I only had a contractor solder the lines. I was wondering why you didn't use a dryer? I didn't add a dryer 30 years ago either, however, contractors seem to use them more now. Anyway, knock on wood, my system still runs without the dryer 30 years later. Thank you.
i bleed my high side line back thru manifold to add the liquid from the hose into the system i know the epa allows a little bleed off from hoses but this is what i do 🙂 ALSO LOVE THOSE LOW LOSS FITTING YOU HAVE ON THOSE HOSES KEEPS FROM BURNING YOUR FINGERS DONT ASK ME HOW I KNOW!! HVAC WORK GETS IN YOUR BLOOD THATS WHAT MAKES YOU GOOD AT IT
Great series! I plan to do this in the near future and this is just what I needed. I went back and watched the last part several times but I didn't see how you loaded the system with freon at the end. Or is the freon in the unit and it flows into the copper pipes when you opened the fittings with the allen wrench? Can I get the freon from a supplier without being a contractor?
Yes refrigerant is precharged in the unit for up to 15 ft of lineset. If you need help with your install, check out our Patreon membership at Patreon.com/diyhvacguy cheers
I've noticed you've evolved on your setup for pulling vacuum since July 2022 when you posted this. Perhaps you could do a video on the pros and cons of the various ways you've performed this task over your career. And maybe explain what you'd consider to be the minimum setup (or minimum/better/best) that the DIY person should have to ensure a successful vacuum. Is it okay to pull vacuum through the manifold gauge set? Which tools are must have/nice to have? Micron gauge? Schrader core removal tool? High volume 'blue' vacuum hose? Maybe this should be premium content. Thanks for all you do, Dave.
Oh if the lineset is longer the 15-20 ft you will probably have to top it off but you can buy a 2lb jug from ability refrigerants. If you want to get real technical you can measure the lineset and for each foot over 15 ft, you add .6 oz of refrigerant. The only way to do it using this method is by weighing in the charge, but it’s guaranteed that it will be at the right charge right out of the gate 👍🏼
It’s a pre charged system so it comes with Freon already in it so when he opens the king valve the Freon in the outdoor unit flowed through the lines into the indoor unit
9:57 - You didn’t say it out loud here; but, you did it: so, I’ll say it out loud for you. With the nut against the mating thread, turn the nut backward until you hear the click assuring the thread has started before tightening. This technique can be used on threads of any type to avoid cross threading.
Yes all new systems are precharged with refrigerant. Watch some of my other air conditioner replacement videos and this should be more clear. Sorry for any confusion! Cheers
Thanks again for video. I noticed there is no filter dryer on neither outside line nor on air handler. My old units gas filter just on outside discharge line and same on air handler line? It’s 3.5 tons. Is that normal
If you need some help, feel free to check out our Patreon membership at Patreon.com/diyhvacguy where for a small fee of $25/mo you will have access to one on one tech support, sizing questions, information on where to purchase equipment and anything else hvac related. cheers.
Really Good, lots of info and links to what you need... I just installed a mini-split and it was very much like this, i did not shorten the lines just in case I moved it elsewhere. Mini-splits only have a single tap (for gauge hook up) on the suction line. (Drives me nuts)
Excellent! I learned I won't be doing my own installation as it requires a "whole lot" more tools than I have. But! It was very informative and now I understand my system a whole lot better. You aren't planning on coming to Florida Sarasota Gulf side area for a winter break are you? You could have a working holiday and do mine.!
Very useful knowledge. Seems to me, a capable DIYer should be able to handle this with the correct tools. However, as I was prepping to do this task I came upon the problem as an unlicensed HVAC guy being able to acquire freons. Any advice in this matter ?
So if you are able to pump your system down as was shown in this series, then install the new one. All the refrigerant comes contained in the new condenser, so you should t need to handle any refrigerant if it’s don’t correctly. If you need some help with a replacement in the future, feel free to check out our Patreon page at Patreon.com/diyhvacguy where you’ll get one on one assistance with replacements, diagnosing problems, and even help with getting the full warranty on your equipment! Cheers
Most units come pre filled with enough refrigerant for a certain length of line set. Usually 15-25 feet depending on system size. Any more than that and you'd have to add some more to the system.
Hello, Amazing video. Thank you so much for making it. Just one question… I didn’t see you installing a dryer on the high side line.. or did I missed it.
GREAT SERIES SIR! Thanks so much. Your skill set as "handy man" are excellent. I watch a lot of other channels with some great journeymen HVAC guys but you hold your own against them as far as installs for sure. I am not an HVAC guy but I am a DIYER that just trys to keep his crsp running and I sure appreciate the knowledge you pass along. Keep the good stuff coming!
Thanks man!
@@diyhvacguy you stated that a micron gauge is optional and that letting you vacuum run a couple hours should get you where you need to be and I believe ya. But is there a reasonable gauge a diyer could purchase? These seem a little pricy. Have thought about maybe doing some handy man work when I retire but...? Don't want to drop alot of money for just a once or twice use. Any help appreciated. Also...I have a pump and gauges for automotive a/c work. You mentioned a residential pump. Will my automotive pump get me pulled down to an acceptable level?
@@hitekrednek66 yea, totally optional. The first few years doing hvac I never owned a micron gauge. Just really check your weld joints with a mirror and let the vacuum pump run for several hours.
Thanks for doing this video series as I’m looking to possibly do this exact thing. One question I have is my old ac is r22, can I use the existing line set with the r410?
I will be doing both condenser and coil replacement.
Thanks
@@robertpearson8989 hey! Yes you can certainly leave it, as long as there was no burnout. As soon as you open the lineset up you will know, but if your system is still running and you are upgrading then you are fine to swap it out and don’t need to do anything with the lineset. It is not very common to get compressor burnout but if you do, you will know it. When you open the lines you will be greeted by the nastiest burnt acid smell you’ve ever smelt. It makes differential fluid smell like roses 😂 I’ll have to do a video on compressor burnout.
R410a was mandated in new systems in 2010. R22 was still being manufactured and sold until 2020 just 4 years ago and reclaimed R22 could still be used in R22 condensers after that date. When he says systems 30 years ago are still running strong WITHOUT nitrogen brazing, he's talking about R22. The problem with R410a is it's scrubbing ability to clean all that carbon off the inside of the line set, which R22 could not do. If you can't flow nitrogen don't braze. Use Stay-Brite 8 and solder your fittings using MAPP gas or acetylene if you have it. The lower temperature won't cause the buildup of containment's like brazing with oxy-acetylene will. Make sure its Stay-Brite 8 and not just plain Stay-Brite. There's more silver in Stay-Brite 8 and it makes a difference.
Savings this 👍
Thank you! Can I reuse my R22 line set with R410a? It sounds like no. What say you? Also, from what I have heard the powers that be cannot seem to settle on a refrigerant for AC, ( Not that this surprises me in the least, every govt agency I had any contact with in my career could not find their collective asses with both hands) I hear that they might go with Propane??? Wait till the Liars ( Lawyers) get ahold of that one. 😂
@@JamesAgans Yes you can reuse your R-22 line set but you have to flush it out first. There's videos on how to do it and you can buy the line flush tool for about $25.00. I used tolulene first and then acetone. Worked good.
If you don't have a nitrogen tank, you can pressures test with the vacuum pump. Pull a vacuum, then let it sit for a few hours and see if it has moved.
Brazing for those who have never done it, can be challenging. When I went to HVAC school some guys couldn’t get the hang of it until about 4 tries. The first time it may come out bad. But DIY give it a shot on single pipes on a table vice first
Ac pro press fittings
Thank you! Changed out my 35 year old condenser, coil, and lineset watching your vids! I appreciate it!
Awesome sauce. Glad they were helpful for you 👊🏼
You have no idea what this video means to my family. This has saved us so much money because I have been able to learn how to do this repair on my own.
Was hvac tec,a lot of chill water,retired, now at 65 I'm back to working with more splits,410,22,units,your material is a good refresher for me,thanks. ✌️🙏
Finally someone has put together a series that is complete and easy to understand. Thank You for putting in the time and patience on creating this video and explaining the process of installing an AC unit.
You made this series very easy to understand.
Well done.
Thanks so much for watching and commenting! I hope this helps a lot of people :)
Good videos!
Great job on video. So you don’t use flux when brazing? I have only done plumbing copper pipe. Need to head to Harbor freight and get a torch set. ❤ Will practice my first braze in a scrap piece. I need to replace my 1.5 ton basement unit. Now I just have to figure out how to buy one at wholesale prices.
Yea, I am cheap. 😅
Thank you so much for the work you are doing here. This is very helpful for a small percentage of people out there who are willing to try this. For most people, they now know they don't want to try it. Sorry for all the "Pros" who are giving you crap about teaching their secrets. They are understandably a little insecure when people see how easy it really is for the thousands being charged. Probably no harder than doing a brake job on your car and a lot less risks.
1:05 - no brazing was needed 30 years ago. Very different temps with R410A that create oxidation that will clog that 0.7 piston. Wonder why you didn't suggest Stay-Brite 8 way for DIY that doesn't need high temps and nitrogen flow, much easier to fail with brazing cooking valves off.. 14:25 - standing vacuum leak test is 10 min I believe. Still very useful.
Just want to say thank you. You have no idea how much I appreciate guys like you sharing knowledge.
Of course!
plumber and weekend warrior here.
love the videos, very straightforward and without frills. my junky home unit's fate is sealed for the scrapyard.
tradie to tradie, don't quench solder/brazed joints right after you're done, enough thermal snap can lead to microcracks and insanely slow leaks. Something about atoms in stacks between dissimilar metals and how they cling to each other. Wiping it down with a damp rag prevents acidic flux materials from sugaring the copper but give it a minute for them all to become friends.
Cool thanks for the tips! I’m always worried about overheating the king valves but this is good to know. I haven’t overheated one or messed up any seals yet!
I just watched your entire series here and you are awesome. Greatly appreciate you taking the time to do this and help so many
SLC. That explains the honesty and transparency. Think I will fly out and go around with you on calls. A ride along. Learn much faster that way.
Excellent video! Thank you, Sir!
One tip for brazing I learned awhile back is to use the torch flame opposite to where you apply brazing rod and let the capillary action take place to fill that gap. If You use this technique your brazing connections will look quite neat and less messy. Basically, you don't need to torch the rod directly.
Going to try that this week! Appreciated
thank you brother for the videos. Im in south florida and the heat some times is overwheling.Ive been in consruction all my life and always had a desire to learn more about different trades other then my own carpenter.thank you because of you i was able do my daughter home from r22 to 410a 3,5 ton goodman from your videos thanks again for sharing your trade with all of us and not giving a hoot about the haters,
Did you refill it wth refrigerant yourself or did you pay a company to refill it?
Hey, did you cut out the part where you introduce the refrigerant?
Great video very very informative you would be a great teacher
Young man these were some great videos thank you so much
Thank So Much Sir I think with Outmost respect you and Word of Advice are Blessings to many Techs and Home Owners.... I miss this Trade.😢
Thank you so very much. I learn a lot, I was always afraid of even looking at it.
Builder for 24 yrs. Taking time to delve into all of the systems I dont understand fully. This was a real learning experience. Thank you.
Awesome vids! My first time doing a split ducted system and your series broke it down perfect! Excited to do this swap from 25 yr old gas furnace to inverter heat pump!
You’re jam up man. Ac just went out and figured I’d give this a shot and your videos got me convinced i can get it done.
Awesome man! Hey if you need some additional help during your hvac replacement process, check out our Patreon membership at Patreon.com/diyhvacguy where we’ll give you one on one assistance throughout the whole process! Cheers man
@@diyhvacguy Does that membership provide help from you to get it done one way or another?
I watched your whole series. These are very nicely filmed. I learned a lot.
Excellent job helping us to not only do the job but more importantly understand how it all works. This is crucial to learning. You are a great teacher and skilled practitioner. Well done!
Glad it was helpful! Cheers
Great tutorial bro…I plan to tackle a replacement of a 30 year old split system. The air handler is in the attic though. Condenser outside. You explained everything clearly. I appreciate you taking the time to explain everything in detail. Other folks watching….give this guy props for producing such a detailed video.
Hey thanks man, if you would like some one on one help with your install feel free to sign up for our membership over on Patreon.com/diyhvacguy where for $25/mo (cancellable at any time) we will give you one on one assistance with installations, diagnosing, as well as warranty info! Cheers, Dave
Did you manage to install it? I have the air handler in the attic as well, I was wondering if took a lot of time
Quick tip from an HVAC tech. At the end after you're done testing pressures you are taking refrigerant out of the system... as long as your guages are clean and haven't been used for leak checks an what not you should take your high side off leave the low side on and open your guages to put the refrigerant from hoses and guages back into system.
So typically for an accurate reading, you should typically put your micron gauge as close to the system as possible, and as far from the vacuum as possible.I usually place it directly between the line and high side of the system
@diyhvacguy great videos, 1 question. The new condenser unit have freon in there already?
Excellent presentation series- thank you for providing it
Should this not be sweated like copper pipe with a propane torch, solder, and flux?
Do you have another video showing the Freon fill step?
I grew up in Cottonwood, back when it was horse and farm country, and Draper was just a handful of farmhouses.
This is truly amazing. I've watched many of your videos and learned so much from it. Keep up the great work.
Great series! My system is almost 30 years so it’s only a matter of time.
That was awesome!!! I watched all 3 in their entirety.
very good 3 video series thank you I really enjoyed watching it.
Your feedback about other anticipated tips is excellent. I was asking the same questions at the time you were doing something and no later than a minute or two here was my question answered while watching the video. Dude ur simplicity makes the series great. You should be a instructor.
Very well done, I watched all 3 parts and I was able to follow all of the directions.
Thanks for watching! Hopefully this was helpful for ya
@@diyhvacguy yes it was, I like how you create your videos. The way you talk and explain is not hectic or stressful.
@@ericbader thanks nan, a lot of people say my teaching style is different. Sometimes i feel like I’m talking too slow lol thanks for watching! Cheers
Man, thank you so much, I am a DIY. I do a lot of stuff myself. This is one thing that I have not been excited to do… we are going to install central air in a house. We just purchased, after watching your series I feel super comfortable with it! Thanks for taking the time!
If you need remote support, check out Patreon.com/diyhvacguy We can help with sizing, walking you through the install, and even help with getting your warranty.
Best
Best video ever tons of information thank you
Cause of your video I got HVAC tools and got two unit installed for my family and save thousand of dollar.
I already have online class before and read a lot of book. Need to get EPA license next . Thank you
Awesome! Thanks for sharing. The epa test is quite easy
Thanks!
Another fantastic video! Amazing series!
Great job- explaining in the mostly easy way and not all that technical mumble jumble- I’ve been doing my own repairs and installation for over 20 years. Your videos are simple to understand- great job!!!!!!
always open the suction valve first, any oil released will be drawn back into the compressor when starting the unit. good idea to clean your tubing before you cut it to prevent contaminates from the sandcloth entering the tubing. carbon buildup from not purging dry nitrogen can damage the system. removing the coil before lifting the coil box into place makes the job easier. installing the electric after brazing will give you better access to the tubing for your braze, espeacially in tight conditions. when installing a 410 system in place of a 22 system you need to at least flush the system, the oils are not compatable and can destroy your compressor.
Some people have told me open suction first others say liquid. 🤷🏻♂️ I’ve done it both ways. Thanks for the advice on the other items as well!
@@diyhvacguy the instructions that come with the unit say to open the suction first.
Thanks for providing constructive feedback. Many people say good job, mostly cuz they don’t understand the process. They cannot point out mistakes or unexplained procedures. However his video series is good enough to begin somewhat.
Thanks!
We had our 3.5 ton go out on us 2 years ago, was quoted $6k by a company. We talked the tech into doing it himself on the weekend. We bought the inside & outside for $3k and he charged a $1000 to do the labor. Considering he had a buddy to get into the attic and remove/replace the evaporator, I think it was a really good $1000 spent.
My daughter's house will need one soon. I'm REALLY tempted to invest in the gauges & torch & Vac Pump, but for $1000, I might take the easy route.
Either way, THANK YOU for showing how really simple it all is. It's the copper that has me spooked...
Nice!! Thanks for sharing
You are a sad human, who talks a tech into stealing from the company that he works for? Liars and cheats. You will reap what you sow.
Someone told me a week ago you could not braze a/c lines without nitrogen. They claimed it would stop up the txv. Guess they were wrong because my txv is fine.
Thank you for doing this series. As a retired appliance and refrigeration tech, couple comments. No hate here. I think the twin tank set up is overkill for the DIY one time shot. I used just a turbo acetylene torch for 40 years is fine.Your flame size was wicked long to try and corral it. Clean joints and proper size tip. Suggest using heat paste on joints and hit with wet rag after. To all the techs saying" you've got to use Nitrogen when brazing ! you'll kill the system ! " Millions of units running 20-30 years old before this concept "required" I install my system 19 years ago, no problems until drain pan rusted last summer. Why not braze lines at air handler with cover removed since it's slotted and reinstall cover after ? Burned panels looks very amateurish. (not that you did) As far as burn out comp. worries, haven't seen one for 20-25 years. Good to mention it anyway.
Question about worrying over super heat temps. If the unit is pre-charged matched to coil, lines are evacuated when have you had to tweak the charge from super heat ? Seem to me it has to be really close optimum already. Thanks again.
Thanks for the tips! All good advice. Cheers
Regarding Nitrogen purge I think on newer units with TXV valves you don't want the oxidation getting into the system and blocking the small passages in the unit. Either way it's not a bad idea. I know it's absolutely required on Mitsubishi VRF installations and on those you pressure test with Nitrogen and pull a vacuum 3 times to really remove all moisture in the line sets.
@@memsu06 Thanks for explanation. Are the TXV valve ports smaller than equivalent capillary lines I.D. ? If so, I could see the logic. Teach an old dog.. Thanks
Thanks!
Thank you 🙏🏻
This is really great information and I agree that this is valuable to anyone if only to learn how this work should be performed. If anyone has a home warranty you need to learn more about how this work needs to be done.
Thanks brother, awesome videos! I will be replacing my own system because of you!
Love your videos. Currently going through HVAC school and these instructions have definitely given me more confidence. Quick question, though. I was taught that putting nitrogen in your system before brasing is not optional. it's a requirement. Is there a reason you wouldn't have to?
Great vid and explanation…question/curious: Can you use solder and a propane torch to sweat the copper joints, just like you would with regular plumbing or is it a must to braze as you have?
Can you use a propane torch instead?
Yes you can!
Excellent series.
This series was great. Your explanation was so easy. You gave me the courage to replace my unit myself. I will try it this summer. Thank you soo much!!
Awesome! If you need help with it, check out our membership where we offer one on one assistance over at patreon.com/diyhvacguy
Cheers
Great video but I would like to ask a couple of questions as I’m still new at this stuff.
I always understood that a liquid line dryer should always be installed on a new installation or anytime you open up a system yet I watched the entire series and did not see one installed.
2nd question- I was always taught to keep vacuum gauge as close to the unit as possible and use core removal tool to isolate gauge from the system when introducing the refrigerant?
But other than those items I think you did an outstanding job in explaining each detail.
Keep up the good job my friend!
Goodman’s come with a built in filter drier. And yes I’ve changed my method as far as isolating the micron gauge now. Cheers
Aces all the way , excellent fundamentals start to finish 🤔 left me utterly confident on doing a mini split install , clear and concise guide complete 🎯💎☝️🙏✌️
Best DIY video ever. Thank you
Great video. Thank you for sharing your knowledge
This video series is invaluable.. Thank you and keep up the great work.
Glad you enjoy it! Thanks for watching.
Excellent- I enjoyed every bit of your procedure. Way to go, big guy!
This was extremely informative. Thanks so much.
Did I miss the part where you put freon into the new unit? Or do new units come with some Freon already in them?
New units are filled with refrigerant. You then double check to make sure the level is good from the manufacturer and add virgin refrigerant if needed
Thank you very much for all the helpful information very detailed info gives me motivation to tackle a job like this at home if need be and will save me alot of money and still gives me a chance to purchase some new gadgets. Thanks again
If you do, feel free to check out our membership at Patreon.com/diyhvacguy where we will give you one on one assistance with all things hvac! Cheers
Excellent video! Thorough and very detailed. One thing I'm wondering at the end of all 3 episodes was whether it is necessary to top up the system with refrigerant due to the line set. One may say that the condenser is pre-charged with enough refrigerant. But what about such a case when you have exceptionally long line set? 2X or 3X as long?
Yes In that case you’d need to top it off. You can purchase refrigerant from abilityrefrigerants.com 👍🏼
The Goodmans are charged to 15 feet. Any length over that will take 0.6 ozs on the 3/8 liquid line, or to be more precise for Goodman, 0.74 ozs on a 3/8 liquid and 7/8 suction line per foot past 15 feet. 60 foot run, minus 15 feet equals 45 foot line length x 0.74 equals 33.3 ozs additional R410a.
You are awesome!
Clean and understandable procedures
Helpfull tools
Awesome work Bud
Just a tip i was told its easier to see any missed brazed parts on the pipe before you wipe it to cool it off.
Great series, I wish this was available 30 years ago when I installed my system. I only had a contractor solder the lines. I was wondering why you didn't use a dryer? I didn't add a dryer 30 years ago either, however, contractors seem to use them more now. Anyway, knock on wood, my system still runs without the dryer 30 years later. Thank you.
The Goodman’s come with an internal filter dryer which is nice. You could do an additional one though.
i bleed my high side line back thru manifold to add the liquid from the hose into the system i know the epa allows a little bleed off from hoses but this is what i do 🙂 ALSO LOVE THOSE LOW LOSS FITTING YOU HAVE ON THOSE HOSES KEEPS FROM BURNING YOUR FINGERS DONT ASK ME HOW I KNOW!! HVAC WORK GETS IN YOUR BLOOD THATS WHAT MAKES YOU GOOD AT IT
Great series! I plan to do this in the near future and this is just what I needed. I went back and watched the last part several times but I didn't see how you loaded the system with freon at the end. Or is the freon in the unit and it flows into the copper pipes when you opened the fittings with the allen wrench? Can I get the freon from a supplier without being a contractor?
freon is in the unit already.
Yes refrigerant is precharged in the unit for up to 15 ft of lineset. If you need help with your install, check out our Patreon membership at Patreon.com/diyhvacguy cheers
Great series of information and videos- really appreciate sharing your knowledge!
14:45 where is the freon hooked up?
I've noticed you've evolved on your setup for pulling vacuum since July 2022 when you posted this. Perhaps you could do a video on the pros and cons of the various ways you've performed this task over your career. And maybe explain what you'd consider to be the minimum setup (or minimum/better/best) that the DIY person should have to ensure a successful vacuum. Is it okay to pull vacuum through the manifold gauge set? Which tools are must have/nice to have? Micron gauge? Schrader core removal tool? High volume 'blue' vacuum hose? Maybe this should be premium content. Thanks for all you do, Dave.
Best channel I ever watched.
Thanks! That means a lot!
Great job on the series watched them all. Now for a brand new install, you never had to add freon? Just checked the pressures? Good JoB!!!
Oh if the lineset is longer the 15-20 ft you will probably have to top it off but you can buy a 2lb jug from ability refrigerants. If you want to get real technical you can measure the lineset and for each foot over 15 ft, you add .6 oz of refrigerant. The only way to do it using this method is by weighing in the charge, but it’s guaranteed that it will be at the right charge right out of the gate 👍🏼
Great series of videos. Thanks!
Okay after brazen when do we add the refrigerate?
It’s a pre charged system so it comes with Freon already in it so when he opens the king valve the Freon in the outdoor unit flowed through the lines into the indoor unit
9:57 - You didn’t say it out loud here; but, you did it: so, I’ll say it out loud for you. With the nut against the mating thread, turn the nut backward until you hear the click assuring the thread has started before tightening. This technique can be used on threads of any type to avoid cross threading.
My old School AC Tech never purged or used Nitrogen when brazing when doin an install. And somehow everything seemed to work for many years.
Unless I missed it, did the unit have freon already in the unit and was drawed into the system once the vac was obtained?
Yes all new systems are precharged with refrigerant. Watch some of my other air conditioner replacement videos and this should be more clear. Sorry for any confusion! Cheers
Great video thanks for the info keep it up🎉
Thanks again for video. I noticed there is no filter dryer on neither outside line nor on air handler. My old units gas filter just on outside discharge line and same on air handler line? It’s 3.5 tons. Is that normal
That was a great info my friend, I will be using it to replace my ac condenser
Awesome, if you need any help with your replacement, feel free to check out our Patreon membership at Patreon.com/DIYHVACGuy. Cheers
If line set is LONGER than spec limit for Unit, may need to add more refrigerant.
Great video just remember about those trade codes and osha codes and EPA codes.
Thank you!
You would be a great instructor!
Great job 👏 I will definitely use this information on my switch out, thanks, I needed to see this.
If you need some help, feel free to check out our Patreon membership at Patreon.com/diyhvacguy where for a small fee of $25/mo you will have access to one on one tech support, sizing questions, information on where to purchase equipment and anything else hvac related. cheers.
Wow! Thank you for the video! This may save me a lot of money!
Great, Great 3 part DIY video. Thank you!!
Really Good, lots of info and links to what you need... I just installed a mini-split and it was very much like this, i did not shorten the lines just in case I moved it elsewhere. Mini-splits only have a single tap (for gauge hook up) on the suction line. (Drives me nuts)
Both lines on a mini split are the suction line. The TXV is located in the outside unit. Hence why both are insulated, and why there's only one tap
Do I the fluke tool when doing the super heat test? also the nitrogen when doing the pressure test?
Thanks for the outstanding video.
Excellent! I learned I won't be doing my own installation as it requires a "whole lot" more tools than I have. But! It was very informative and now I understand my system a whole lot better. You aren't planning on coming to Florida Sarasota Gulf side area for a winter break are you? You could have a working holiday and do mine.!
I’d love to come to Florida and replace yours :) email me at diyhvacguy@gmail.com Cheers
Very useful knowledge. Seems to me, a capable DIYer should be able to handle this with the correct tools. However, as I was prepping to do this task I came upon the problem as an unlicensed HVAC guy being able to acquire freons. Any advice in this matter ?
So if you are able to pump your system down as was shown in this series, then install the new one. All the refrigerant comes contained in the new condenser, so you should t need to handle any refrigerant if it’s don’t correctly. If you need some help with a replacement in the future, feel free to check out our Patreon page at Patreon.com/diyhvacguy where you’ll get one on one assistance with replacements, diagnosing problems, and even help with getting the full warranty on your equipment! Cheers
Most units come pre filled with enough refrigerant for a certain length of line set. Usually 15-25 feet depending on system size. Any more than that and you'd have to add some more to the system.
Hello, Amazing video.
Thank you so much for making it. Just one question… I didn’t see you installing a dryer on the high side line.. or did I missed it.