As an hvac tech, I have considered doing this with a reliable conventional knob control window a/c instead of buying a true minisplit with all the electronic junk. And is cheap.
Pulling a vacuum and holding with a micron gauge would have saved you 24 hours. Also 410a should be charged as a liquid since it’s a blend refrigerant. You can do this by flipping the jug upside down as indicated on the jug. Cool idea. Cheers
Well I've never seen an old window A/C like that that hadn't already lost its charge (HINT HINT) although I do believe in environmental stewardship if it's actually beneficial to me, so I'd refill it with refrigerant grade propane or propane-rthane blend depending on if it were R-22 or R410A. Increased energy efficiency and no need to recover when you realize electricity isn't free and you should have just gotten a cheapo mini split from Temu.
I want to do this with a new 5k btu window ac unit for my computer servers and network. The room is near our AC return it sucks the hot air out makes my large 4 ton unit cycle a lot the heat coming from these computers. I was thinking a tiny AC unit right where the source of the heat should fix the problem same me some money. The key is not having to spend lot of money on a regular mini split I don't really need a large unit anyway.
i picked up a 10kbtu unit form a pawn shop for $5. they said it was returned and broke. i thought i could use the heat exchanges for random projects if nothing else. funny thing is that it works on the bench as it should with one exception, the label says it should use 1000watts, but its using about 1400. i plan on making something for heating the house. i used a couple little heat pumps all winter last year, but i am not done learning playing so i dont know what i am doing. anyways, i dont plan on making it complicated with reversing valves or anything. i am planning on seperating the condensor and evap like you did here, but i am going to put the condenser and pump inside and evap outside. likely just use 1x2x20 inch foam board and drill two holes and pass my copper tubes through it and set this in the window. it wont look pretty but should work. this may just get installed when its cold and then brought in when its hot for now.
@@EnergyMaterials i recently took on a good paying job that requires me to travel to the point i am gone 6 out of 7 days a week. just today i txted someone to come get this stuff and get it out of here as i dont have time or space for this stuff. most of my motivation was based on being poor and investing a great deal of my income into my solar/batteries/ebike to learn some skills, save money on bills and have cheap transportation. i am not done, but i am down sizing my arsenal of experimental equipment. will likely add more batteries/panels and small ready made heat pumps this winter.
Nice job, very clean work. Did you get a recovery unit just for hobby purposes? Judging by the age of that window unit, I'm guessing R-22? Or is it a case of "I can neither confirm nor deny"?
Thanks for the positive feedback, the unit I worked on was R410A; although it was definitely an old unit- may be one of the 1st generation of R410A after R22 was phased out?
It was a long video (apologies for this). It wasn't as hard as potentially it looked, especially if you can get two similar window AC units and do not need to fabricate a 2nd box to house either the evaporator or condenser.
Until then, l've turned things over to my bestest buddy in the whole wide world... MR. BLACK. I want you to treat... MR. BLACK with the same respect you would give me. Now here's... MR. BLACK."
SEER rating, good question. I've not measured but am confident this will be a better value than a conventional portable unit that most people use for garages. Portable units, by their very nature create a negative pressure environment due to the vent pipe wasting conditioned air. As this is a split system there is no negative pressure created inside the garage.
That was fun to watch!
Cheers 🍺 from DALLAS TX
As an hvac tech, I have considered doing this with a reliable conventional knob control window a/c instead of buying a true minisplit with all the electronic junk. And is cheap.
Condenser……………..condenser………😂 great video I plan on reviewing this again for a van project. Thank you for creating this
I've wanted to do this for so long! Glad it worked for you!
Looking for this from past 1 year thanks mate 😅😅😅😅
Pulling a vacuum and holding with a micron gauge would have saved you 24 hours. Also 410a should be charged as a liquid since it’s a blend refrigerant. You can do this by flipping the jug upside down as indicated on the jug. Cool idea. Cheers
True.
Well I've never seen an old window A/C like that that hadn't already lost its charge (HINT HINT) although I do believe in environmental stewardship if it's actually beneficial to me, so I'd refill it with refrigerant grade propane or propane-rthane blend depending on if it were R-22 or R410A. Increased energy efficiency and no need to recover when you realize electricity isn't free and you should have just gotten a cheapo mini split from Temu.
Wonderful project. Well done you !
Thanks Man, the AC unit is still working strong today. Probabily one of the most useful DIY projects I've worked on.
nice job. wish i had the all the tools needed.
Ive long wondered if this is possible! Thanks for the video.
Would it be better to drill two small holes in the brick to reduce line length?
Good point, yes it would have. Shorter line length and avoiding working in the attic would have been an improvement.
I want to do this with a new 5k btu window ac unit for my computer servers and network. The room is near our AC return it sucks the hot air out makes my large 4 ton unit cycle a lot the heat coming from these computers. I was thinking a tiny AC unit right where the source of the heat should fix the problem same me some money. The key is not having to spend lot of money on a regular mini split I don't really need a large unit anyway.
i picked up a 10kbtu unit form a pawn shop for $5. they said it was returned and broke. i thought i could use the heat exchanges for random projects if nothing else. funny thing is that it works on the bench as it should with one exception, the label says it should use 1000watts, but its using about 1400.
i plan on making something for heating the house. i used a couple little heat pumps all winter last year, but i am not done learning playing so i dont know what i am doing. anyways, i dont plan on making it complicated with reversing valves or anything. i am planning on seperating the condensor and evap like you did here, but i am going to put the condenser and pump inside and evap outside. likely just use 1x2x20 inch foam board and drill two holes and pass my copper tubes through it and set this in the window. it wont look pretty but should work.
this may just get installed when its cold and then brought in when its hot for now.
Let me know how your project goes, best of luck
@@EnergyMaterials i recently took on a good paying job that requires me to travel to the point i am gone 6 out of 7 days a week. just today i txted someone to come get this stuff and get it out of here as i dont have time or space for this stuff. most of my motivation was based on being poor and investing a great deal of my income into my solar/batteries/ebike to learn some skills, save money on bills and have cheap transportation. i am not done, but i am down sizing my arsenal of experimental equipment. will likely add more batteries/panels and small ready made heat pumps this winter.
Thanks for this!
Nice job, very clean work. Did you get a recovery unit just for hobby purposes? Judging by the age of that window unit, I'm guessing R-22? Or is it a case of "I can neither confirm nor deny"?
Thanks for the positive feedback, the unit I worked on was R410A; although it was definitely an old unit- may be one of the 1st generation of R410A after R22 was phased out?
This is great!
Didnt you add a bunch of pipe? Shouldn't you put some more in. Oh wait spoke too soon.... Would really like to do this and make my own split system
It was a long video (apologies for this). It wasn't as hard as potentially it looked, especially if you can get two similar window AC units and do not need to fabricate a 2nd box to house either the evaporator or condenser.
How did you calculate what size capacitor to use?
Thanks. I just used a similar uf value that was on the original capacitor.
Until then, l've turned things over to my bestest buddy in the whole wide world...
MR. BLACK. I want you to treat...
MR. BLACK with the same respect you would give me. Now here's...
MR. BLACK."
SEER?
SEER rating, good question. I've not measured but am confident this will be a better value than a conventional portable unit that most people use for garages. Portable units, by their very nature create a negative pressure environment due to the vent pipe wasting conditioned air. As this is a split system there is no negative pressure created inside the garage.
Just adding a comment. \for the algorithm\
2023 yet video quality from 2003...
It'll be nice if you wouldn't end every sentence with up-speak , like every sentence is a question. So annoying
Point taken, I'll try to improve? must be my accent