I watched many videos on wiring-up a fridge/AC compressor and by far this was the ONLY video that I understood clearly and was was able to complete my DIY silent compressor project. We need more people teaching like this guy.
I just purchased a new window ac unit to replace my old loud window ac. My old ac unit works good, it is just old and LOUD!!! I have an old empty BBQ propane tank that I will flush out and with a few Harbor Freight pieces I believe I too can build myself a small shop air compressor. Thank you so much for this video, I have learned a lot and feel confident I can build this. Now if I can get my BBQ tank cleaned out without blowing myself up, I will be in good shape,,,,,, It sucks to wake up dead!
Thanks a million my friend, I copied the instructions in your video and my comp burst into life first time that I plugged it in.I am over the moon with it. I have watched quite a few of your vids and I have subscribed to you excellent channel .Cheers to you and yours from the UK.
Thanks so much! Was having some trouble figuring out the wiring and this video did the trick! I will link to this in my video in case anyone else has any problems.
thank you so much, very easy instruction and very detailed. I've been thinking of building an oil extractor using a small propane tank, but like many out there I don't want to spend too much money on a vacuum pump. I just have to get my hands on an old ref. or window AC.
Good vid. Liked. those Rotary Compressors will Do as much as 400 Psig, but they won't last long doing it. they can run up to 275psig all day long, but that is with suction subcooling coming back as refrigerant enters the compressor. they need cool air entering the compressor to make it survive. no warmer than 55 degree's. it keeps the compressor electrical wiring inside the compressor from melting. so if you're in a Basement and it's relatively cool 65 degree's or less that'l keep it working. You could use it to Pressurize a 30 lb Steel Refrigerant Recovery Tank to 150Psig all day long and that would make a great little air Tank for blowing off parts.
I wonder how much pressure that thing can charge up to? I suppose you can use a flare tool or solder the copper pipe to a fitting. Also, the intake tube is directly connected to the compressor housing; thus, you can pour a set amount of oil into a cup, dip that intake tube into the oil, turn the unit on to get more oil into the system. The pinched tube can be cut to drain old oil.
I built one using a gas grill bottle for the tank. I used a pressure switch with an unloader set to kick off at 150 psi. Mine used a potential relay to start the motor. No capacitor.Those things tend to spit alot of oil though with no good way to check the level.
Yeah, I was reading online and many people use them specifically for air brushes. You can also use it to fill a large tank and run medium duty air tools.
hmm thinking 2 pumps 1 tank may be a nice alternative for my portable compressor I have now and still give me a faster refill time. Does anyone no how much pressure things can make? and what's the safe pressure to trust using these things at?
By the sound of your ohm meter, your switch must be in the continuity / diode mode. If this is the case, you are not measuring ohms, you are measuring the voltage across the resistance in circuit. This is used to see the voltage bias of a diode.
I don't understand the oill comment as that compressor actually used to pump freon. that is from a dehumidifier, i have the same on sitting right here. . If i put a new coil on the thing and a valve to r or whecharge it couldnt i add freon and make a cooling coil?
I seen your black meter lead is like mine bent!!!! It finally cracked so JB Weld has a very high resistance. I also find sometime when the numbers are off the Cap is going or is bad.. A cap is a lot cheaper that a new compressor
Is this compressor and wiring only for 120v? I just got an old compressor shows 240v 3ph but the frig. had a regular 3 prong wall plug. Mine doesnt have a big capacitor like yours Will this work? How if so?
nice video , i,m trying something similar the only diference is mine is a tecumseh upright like yours 3 wires coming out of it difer a bit mine are yellow ,red and black , also my capacitor has 3 terminals one says fan one says common and the third says herm which i don,t know what herm means . thanks for any helpful tios
I watched dozens of these vids and this is the only one that showed how to wire the compressor. Great job! Finished mine today. I couldn't have done it without you. You are a great teacher!
i'm on 240 v and i reversed the line and neutral because my FUCKING STUPID PROFESSOR told me how can i forget that blue is line bullshit blue is neutral its all over google brown is line so now it keeps blowing the barker even after reversing the line to the cap and run it worked in the hvac i got it from it is 30-40 years old but the compressor works i know it its a fact i just don't know if it works now after reversing it from my understanding it doesn't mater it is just correct to wire it that way not reverse but did i just burn up my compressor cause it was a good one too can someone tell me ?
Great information... I remember back when I was a kid in the late 60's my dad would use fridge compressors in his farm shop to inflate tractor tires. He couldn't afford an actual air compressor but came across old fridges occasionally and would salvage the compressors for this purpose. For a large tire I recall that it took a while to blow it up, but eventually they would get the job done. He liked to mount them on an old push-mower deck... made them easy to move to where ever you needed it. He never put any more oil in one... when one would quit working he'd just find another one to replace it.
Wow. Thank you so much for your excellent informative video. I follow step by step. Managed to get my old ac compressor running. Now I'm gonna build me a full set silent air compressor.
from the plug: common is normally black (called a common, line, or hot) which carries 120v. the neutral is normally white (called a neutral or enclosed ground). the ground... ur right, it's a ground or rod ground. terminology is key for newbies (especially when they're watching another person's video). always use a tank and always use a switched pressure regulator at LEAST. It's a cheap way to avoid major hazards.
I would never go by color unless the schematic printed on the compressor is worn away and or model and serial. You can always pull a wiring diagram.....
Hi their, we have a single phase Compressor, same principle, except we also have a run capacitor, which is wired form the Live 240 volts to the junction between the start winding in side and centrifugal switch...we have a centrifugal switch in the start circuit to turn the start winding off when it gets up to speed...about 2 seconds or less...Fred UK
thank you for the video.my little 3 gal. compressor pump died, it has only a 100psi switch. I could not figure out the wiring of the dehumidifier compressor pump out. thanks to this video, I can now wire up a new pump for my little tank. plus for the switch before the capacitor I will tie it into the 100psi switch. this video fixed my little compressor for super cheap $. I had the dead dehumidifier, the pump worked but no more cold. and now it will be pumping my Little 3 gal tank thank you very much... GREAT VIDEO THUMBS UP!!!
I have a problem!! I have made my Compressor and it runs ok. The Problem is when I stop it, It wont jump online Again unless the presure in the compressor is gone!! I took off the Capacitator off, because at some time I saw a video on youtube that I dont need it anymore!!? Thank you for the video Brother ...;)
hello, your vid was great but im not sure it applies to my compressor, i have the overload relay and the ohms dont seem right between the 3 terminals, (3,5,5). is there a diferent wiring diagram for the comopressors with the overload relay?. i did try to wire it as the start wire being the overload relay but it didnt start (thouigh the lights in the house dimmed)??? anyways hope you are still at it ive watched a few of your vids and they are quite good. im trying to build a mini vacuum chamber.
Thanks for demonstrating what it could do. Looks like it'd be good for airbrushes or similar light-duty use. I sure wouldn't try blowing up a tire with it.
my fridge compressor that i want to convert to an air compressor is running when i plug it in an outlet but i cannot understand why there is no suction nor it blows air out.? By the way i think there is no capacitor on that. I only have a small black box attached from a three round pins in the compressor itself. red and white wire on it which i directly wired that on a plug. Can that compressor will function without the capacitor? tnx a lot.
Really great video. This was explained really well with the wiring diagram. Thank you very much. Not sure how anyone can give this video a thumbs down unless they are clueless about the topic. Thanks again
another question, cause I am doing this or attempting to,, the switch from the capacitor,, is it always on after the compressor starts up, if it was always on would the worse that could happen the capacitor would be low in voltage in aiding startup?
Great video, thanks for taking the time to do it. I want to use a fridge compressor to supplement the aeration of my pond. My question is, to keep the compressor lubricated, I'll add oil but obviously I don't want it to go into the pond. What if I extend the pressure side to a height of about 4 or 5 foot straight up, do you think that would help keep the oil in the compressor rather than being pumped into the pond? Thanks in advance.
I watched many videos on wiring-up a fridge/AC compressor and by far this was the ONLY video that I understood clearly and was was able to complete my DIY silent compressor project. We need more people teaching like this guy.
I just purchased a new window ac unit to replace my old loud window ac. My old ac unit works good, it is just old and LOUD!!! I have an old empty BBQ propane tank that I will flush out and with a few Harbor Freight pieces I believe I too can build myself a small shop air compressor. Thank you so much for this video, I have learned a lot and feel confident I can build this. Now if I can get my BBQ tank cleaned out without blowing myself up, I will be in good shape,,,,,, It sucks to wake up dead!
Thanks a million my friend, I copied the instructions in your video and my comp burst into life first time that I plugged it in.I am over the moon with it. I have watched quite a few of your vids and I have subscribed to you excellent channel .Cheers to you and yours from the UK.
Thanks so much! Was having some trouble figuring out the wiring and this video did the trick! I will link to this in my video in case anyone else has any problems.
Hi...LLC ...You're GREAT! Very Very Very GOOD EXPLANATION....good VERY GOOD English and
Super EAZY to Understand......Thanks! Brilliant Work Sir!
Your tha man ... I’m making a vac pump for bleeding breaks .. and I really needed this wiring diagram .. thanks
Hey man best video every on how to connect that compressor thanks
Great video, was able to convert dehumidifier compressor in no time.
thank you so much, very easy instruction and very detailed. I've been thinking of building an oil extractor using a small propane tank, but like many out there I don't want to spend too much money on a vacuum pump. I just have to get my hands on an old ref. or window AC.
wow great, i understand your video tutorial..thanks you so much..
Good vid. Liked. those Rotary Compressors will Do as much as 400 Psig, but they won't last long doing it. they can run up to 275psig all day long, but that is with suction subcooling coming back as refrigerant enters the compressor. they need cool air entering the compressor to make it survive. no warmer than 55 degree's. it keeps the compressor electrical wiring inside the compressor from melting. so if you're in a Basement and it's relatively cool 65 degree's or less that'l keep it working. You could use it to Pressurize a 30 lb Steel Refrigerant Recovery Tank to 150Psig all day long and that would make a great little air Tank for blowing off parts.
I wonder how much pressure that thing can charge up to? I suppose you can use a flare tool or solder the copper pipe to a fitting. Also, the intake tube is directly connected to the compressor housing; thus, you can pour a set amount of oil into a cup, dip that intake tube into the oil, turn the unit on to get more oil into the system. The pinched tube can be cut to drain old oil.
Good informative video. Thanks.
Great video helped me out! doing same thing and didn't have wire information!thanks!
I built one using a gas grill bottle for the tank. I used a pressure switch with an unloader set to kick off at 150 psi. Mine used a potential relay to start the motor. No capacitor.Those things tend to spit alot of oil though with no good way to check the level.
Very illustrative...
I'll be uploading a new video in a few days and will be adding a link directing people to your video.
Have you got a vodeo on wireing up a 220v AC compressor t0 make a air compressor?
I love this vid is a great idea for a airbrush especially if using it in the house
Yeah, I was reading online and many people use them specifically for air brushes. You can also use it to fill a large tank and run medium duty air tools.
hmm thinking 2 pumps 1 tank may be a nice alternative for my portable compressor I have now and still give me a faster refill time. Does anyone no how much pressure things can make? and what's the safe pressure to trust using these things at?
dan rasmussen There is a video from mopatin check it out the answer is 870PSI !!!!!!!!!! 2 pumps will work also.
By the sound of your ohm meter, your switch must be in the continuity / diode
mode. If this is the case, you are not measuring ohms, you are measuring the voltage
across the resistance in circuit. This is used to see the voltage bias of a diode.
+MrMac5150 yeah i was not understanding those readings at all
Pls listening again again and again.you will get it
I have a 10 year old Portable A/C. Still works. but if and when it quits. I want to do something like this with the compressor. :)
Pls don't waste your time.this is rotary type ref compressor.approxmatly 18000 B T U.
I don't understand the oill comment as that compressor actually used to pump freon. that is from a dehumidifier, i have the same on sitting right here. . If i put a new coil on the thing and a valve to r or whecharge it couldnt i add freon and make a cooling coil?
I seen your black meter lead is like mine bent!!!! It finally cracked so JB Weld has a very high resistance. I also find sometime when the numbers are off the Cap is going or is bad.. A cap is a lot cheaper that a new compressor
great info!
Is this compressor and wiring only for 120v? I just got an old compressor shows 240v 3ph but the frig. had a regular 3 prong wall plug. Mine doesnt have a big capacitor like yours Will this work? How if so?
nice video , i,m trying something similar the only diference is mine is a tecumseh upright like yours 3 wires coming out of it difer a bit mine are yellow ,red and black , also my capacitor has 3 terminals one says fan one says common and the third says herm which i don,t know what herm means . thanks for any helpful tios
wao great video thank you!
Hi...LLC may you determine what is the common name for the Comp.oil called? Is it "hydralic Oil"?
thanks dear sir♥
Industry standard blk=common,yel=start,run=what is left.
Good morning, how you explain the method of wiring is easy to understand. What is the size of the capacitor. Thanks in advance.
I watched dozens of these vids and this is the only one that showed how to wire the compressor. Great job! Finished mine today. I couldn't have done it without you. You are a great teacher!
cool vid,,,, lots of info
i'm on 240 v and i reversed the line and neutral because my FUCKING STUPID PROFESSOR told me how can i forget that blue is line bullshit blue is neutral its all over google brown is line so now it keeps blowing the barker even after reversing the line to the cap and run it worked in the hvac i got it from it is 30-40 years old but the compressor works i know it its a fact i just don't know if it works now after reversing it from my understanding it doesn't mater it is just correct to wire it that way not reverse but did i just burn up my compressor cause it was a good one too can someone tell me ?
Great information... I remember back when I was a kid in the late 60's my dad would use fridge compressors in his farm shop to inflate tractor tires. He couldn't afford an actual air compressor but came across old fridges occasionally and would salvage the compressors for this purpose. For a large tire I recall that it took a while to blow it up, but eventually they would get the job done. He liked to mount them on an old push-mower deck... made them easy to move to where ever you needed it. He never put any more oil in one... when one would quit working he'd just find another one to replace it.
Sucking in compressed air Lol. Great video my friend. Thankx for the awesome information. Lol. You putt a smile in my face.
Wow. Thank you so much for your excellent informative video. I follow step by step. Managed to get my old ac compressor running. Now I'm gonna build me a full set silent air compressor.
You mentioned that you might have to add oil. Can you explain how and where you would add oil to the compressor?
from the plug: common is normally black (called a common, line, or hot) which carries 120v. the neutral is normally white (called a neutral or enclosed ground). the ground... ur right, it's a ground or rod ground.
terminology is key for newbies (especially when they're watching another person's video).
always use a tank and always use a switched pressure regulator at LEAST. It's a cheap way to avoid major hazards.
SISTEMAS DE ARRANQUE DE COMPRESORES EN REFRIGERACION 120 VAC Y 220 VAC EN GENERAL
I would never go by color unless the schematic printed on the compressor is worn away and or model and serial. You can always pull a wiring diagram.....
Thanks to share
Looks like a run cap.....
Start caps are usually a plastic type material?
total guess,, to oil the compressor, put a few drops of oil in the air intake?
joe b That is correct.
that's a good question brother. I'm glad you asked.
Hi their, we have a single phase Compressor, same principle, except we also have a run capacitor, which is wired form the Live 240 volts to the junction between the start winding in side and centrifugal switch...we have a centrifugal switch in the start circuit to turn the start winding off when it gets up to speed...about 2 seconds or less...Fred UK
Tom Smith Sounds good.
Good explanation the other video i seen are pointless not too much details thank you
thank you for the video.my little 3 gal. compressor pump died, it has only a 100psi switch. I could not figure out the wiring of the dehumidifier compressor pump out. thanks to this video, I can now wire up a new pump for my little tank. plus for the switch before the capacitor I will tie it into the 100psi switch. this video fixed my little compressor for super cheap $. I had the dead dehumidifier, the pump worked but no more cold. and now it will be pumping my Little 3 gal tank thank you very much... GREAT VIDEO THUMBS UP!!!
This video was very helpful,please keep up the good work
thanks for sharing
Can I get away with using 18 gauge for the plug?
I have a problem!! I have made my Compressor and it runs ok. The Problem is when I stop it, It wont jump online Again unless the presure in the compressor is gone!! I took off the Capacitator off, because at some time I saw a video on youtube that I dont need it anymore!!? Thank you for the video Brother ...;)
The switch should be between the capacitor and the START winding.
can't stand the pen - less pressure on the pen please
What if you have 4 wires?????
hello, your vid was great but im not sure it applies to my compressor, i have the overload relay and the ohms dont seem right between the 3 terminals, (3,5,5). is there a diferent wiring diagram for the comopressors with the overload relay?. i did try to wire it as the start wire being the overload relay but it didnt start (thouigh the lights in the house dimmed)??? anyways hope you are still at it ive watched a few of your vids and they are quite good. im trying to build a mini vacuum chamber.
that marker makes me want to chew a hole in my forehead
Awesome!
People are throwing out their ACs and refrigerators, and the compressors can get a new life as workbench compressor? Sounds terrific to me.
does anyone know what capacitor is needed for this??? iv got the same compressor but i dont have the capacitor. Thanks
How should I measure which capacitor goes with which compressor. Please let me know.
Very good information and nice and understanble english tanks a lot
Great video but holy shit that marker is making my skin crawl
Copressure run on 220v only
very good vid...easy laymans terms.a dummy can understand and do this.thanks
how would u wire two pumps... I have two n would like to do that if u could help that would b great.
Marker pen killing me
EXXXXXXXXXXCELLLENT VIDEO TYVM MAN
Thanks for demonstrating what it could do. Looks like it'd be good for airbrushes or similar light-duty use. I sure wouldn't try blowing up a tire with it.
thanks great video
Thank you for sharing this very clear and concise.
I hate that marker noise
Hello I have this exact air compressor. Was just wondering if I could just hook up hose directly to compressor and use as air hose or to power air gun
Thank you for the video, really easy to understand.
I built the same exact thing, is the motor supposed to get really hot after it's running for awhile?
Thank You sooooo much😎😉
QUESTION ? What is the make and model number of your Multi-meter? It look great I collect them...
Great Video !
good information teching
i like this vedio very much the way of demonsrations excellant.
I think that compressor can deliver close to 400 psi.
Very well presented, explained and demonstrated. TY.
Is the common internally grounded to the outer case, or is it insulated from case.
my fridge compressor that i want to convert to an air compressor is running when i plug it in an outlet but i cannot understand why there is no suction nor it blows air out.? By the way i think there is no capacitor on that. I only have a small black box attached from a three round pins in the compressor itself. red and white wire on it which i directly wired that on a plug. Can that compressor will function without the capacitor? tnx a lot.
no it can not...
Hi did you remove te ptc overload protection
Really great video. This was explained really well with the wiring diagram. Thank you very much. Not sure how anyone can give this video a thumbs down unless they are clueless about the topic. Thanks again
Great information, Very helpful. Please spit out the wad of gum , the chomping is very distracting
Where did you get that compressor? It looks to be in excellent shape.
I like it
Great info, totally solved my bullshit... thanks pal!
I found the video very helpful. Started up a compressor I picked up from a broken fridge.
Turns out the one I ripped out of a fridge was *almost* wired up perfectly for my case... This helped me figure out the missing part. Thank you!
another question, cause I am doing this or attempting to,, the switch from the capacitor,, is it always on after the compressor starts up, if it was always on would the worse that could happen the capacitor would be low in voltage in aiding startup?
+joe b Yes, it is an on/off switch for the compressor. The "run capacitor" (metal can) is designed to stay in the circuit while the compressor runs.
is it oil filled I got one or not I use mineral oil for my refrigerator compressor air pump
best explanation pusebal tankx dud u did a good job and mad it as simple for any one to underastand tanku
That meter... is a gouge... and you wire the motor not the compresor:). BTW use only mineral oils;)
This is hermetic rotary compressor Motor is built in the compressor.
I'm learning alot of new things here, with a vast array of cool projects. Thank you for sharing
Great video, thanks for taking the time to do it. I want to use a fridge compressor to supplement the aeration of my pond. My question is, to keep the compressor lubricated, I'll add oil but obviously I don't want it to go into the pond. What if I extend the pressure side to a height of about 4 or 5 foot straight up, do you think that would help keep the oil in the compressor rather than being pumped into the pond?
Thanks in advance.
Add an oil separator in line. The oil is vaporized by the compressor, so it comes out as mist.
very good l love THIS video so much it help me alot
How many volts and ųf is the capacitor
Good question
Thanks,man.Nice one.
this was great hanks man
Cool video doublewide6
Does that capacitor stay hooked in while running? Is the start circuit energized all the time it’s on?
yes, capacitor also smooth out any fluctuations on the voltage. if you plug the multi-meter to the outlet, you'll see it doesn't stay at exact 120
Cool video. Keep up the good work.