re-reading stuff i already know isnt going to help. I didnt mention what brand the airconditioner was. Its a carrier R22 unit.
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re-reading stuff i already know isnt going to help. I didnt mention what brand the airconditioner was. Its a carrier R22 unit.
Yes, we can plainly see how knowledgeable you are. Pardon the interruption. Carry on. :)
Hi abcdefg1675
you are what I would commonly describe as a fool. You are going to hurt either yourself, or someone around you. :(
Stop what you are doing now, whilst you still have all your body parts, and some dignity.:mad:
Regards. Andy
LOLOLOLOLolololololololooooooooohhhhhh!!!!!! fart, giggle,..... snort!
This is absolutely so funny, that it could only be composed by the most adept and experienced field technician that ever existed, with a wonderful talent for use of the English language, in context !!
:D :p ;) :rolleyes: :eek:
I swear, herefishy. It isn't me... LOL
Quote:
Originally posted by Gary
Yes, we can plainly see how knowledgeable you are. Pardon the interruption. Carry on. :)
Gary, You are too cool for school!
I've always thought that, but Mom made me go, anyway... LOLQuote:
Gary, You are too cool for school!
this has turned into a damn soap opera. Im only 16, what do you expect out of me?
carriers website doesnt have anything for a wiring diagram for this old compressor. I just guessed at where the capacitor and 120vac would go. After about 3 tries, i had made 1cm of the 12AWG wire explode, and had to re-solder. When i finnaly had gotten the compressor to run, i was suprised at the displacement of it. It builds up enough pressure, more than enough for propane.
I have all of the cap tubing i will ever need, now i just need to buy a new dryer and a service port, and build my own adaptor so i can charge up the condensor unit with propane.
Now, what is so dangerous about this project aside from the propane? you think i am not apt to solder piping, and screw on a few charging adaptors? i didnt have a problem building my 1200W herf... :D ( although i am afraid to use it... )
I expect you to do your homework. :)Quote:
this has turned into a damn soap opera. Im only 16, what do you expect out of me?
The problem isn't that you don't know. The problem is that you don't know that you don't know. That's dangerous.
My impression is that you want to know without learning; You want to be there without getting there; You want to leap to the finish line.
It's the little details that you are not aware of, and the misconceptions/assumptions you make in order to fill in the gaps in your knowledge that will hurt you.
Your statements thus far have been loaded with misconceptions and assumptions, such that we would have to unteach you and start from scratch.
I only know what i know from reading refridgeration and airconditioning traning manuals (old ones). I bet money that if anyone here started out with just knowlede with electronics, read a few of these books, encyclopedias, and have only repaired and overhauled a fridge and 3 airconditioners, and one car AC system they wouldnt know much about how to do what im doing.
if you expect me to do homework, were you referring to that website? if so, their is practically nothing there that is usefull. It talks about how the refridgerant makes its way through the system and has a drawing of the compressor.
and dont tell me i dont know when i dont know, i know what i dont know, like matching cap tubing sizes to compressors, and different types of oils, nor do i know how much refridgerant to put in. I will use some pressure gauges, and use the temp/pressure method.
The only reason that i am using propane is because others are too expensive or unavalible. R134a is $11/lb at wall-mart ( a big rip-off) R12 is about 60$/lb here, and you have to hire some bum to evacuate the system and charge it up for the same price at which i could buy a new condensing unit with an external evaporator. R22 is $7/lb, but they wont tap the 30lb can and sell you a few lbs. its either all, for 200 and something $ + tax, or nothing. also, someone has to charge up the system for you, because of EPA regulations, and you cant keep the left-over R22. Propane is avalibe at just about anywhere, even goodwill :p.
Propane is 1.09$ per pound (the propane without butane mix, or stink additive). Ive talked to a few people who have done this R12-propane conversion without any modification. Their old freezers seem to work fine, but its not a matter of if it works or not, but how long it will last. I have a compressor that isnt too old, has been tested on the high-side for 350psi (before the thing breaks).
i have the cap tubing thats been matched to the compressor (R22, at 20 degrees F). One thing that i dont know is the efficency of propane, what the evaporator temperature would be without a load using this cap tubing, or how long the compressor will run with the high pressures.
also, i dont know what oil to use. The compressor used to have the "green stuff" in it (another very technical term commonly used) When i was using the fail-safe guess and chech method, the compressor started up. The lines were pinched, pressure built up in the compressor and it sprayed out all of the oil into the air.
and what exactly is the name of the "green stuff"?
Talking about the inexperienced getting hurt - one of our young apprentices was seriously burned yesterday with a bottle of R410a. Right arm, wrist and all of his right hand. Stuff went straight through his clothing and he ended up in A & E.
The new gauges were so tight on the manifold that when he was trying to purge tthe line before charging the system nothing would come out of the line connection, so he loosened the connection to the bottle to see if the refrigerant was coming out of the bottle. Because the bottle was upside down for liquid charging, when the pressure of the liquid (10bar standing) burst the line from the connector all hell broke loose. As he paniced he attempted to close the bottle valve quickly and got burnt in the process. It wasn't a nice sight! :eek:
Now - he's trained to handle refrigerants (by the college) - but he lacks experience. No doubt he's now learnt another valuable lesson, certainly one that he will never forget but I just wish that he had been able to learn in some other safer way.
And don't forget - R410a is not even explosive like Propane :eek:
Im only planning to use propane for testing my portable cooler. Once i know everything is working, i will crack open the service port and move like the wind. Nobody will sell me R22 in cans less than 30lbs. Im hoping i can find a refridgerator that still holds its full charge and evacuate it. Ive found a nice bottle to put refridgerants in, (old Co2 fire extinuisher, 11lb charge). i think its supposed to hold up to 4000psi. the walls of it are nearly 2" thick of steel. I now have an evacuation pump ready, now all i have to do is get some flared fittings, a service port, and a dryer to put this together.
Hi abcdfg1675
you are still missing the point. Legally to work at refrigeration equip you require proper training and certification. Further training and certification is required to work on Hydrocarbons i.e Propane. I personally have all the usually training and a few other beside. I can not work legally on propane, I need to take the correct handling course. All this training is not just to foul things up, it serves a purpose, keeping people safe.
If you use Propane, I assure you you will have an accident.:mad:
Stop now before you spend a spell in hospital.
:confused:
If you are really interested in refrigeration, start a reconised apprentiship, you will receive the necessary training and become compontent, without hopefully endangering yourself or other.
Kind Regards. Andy
i could really care less what is legal and what isnt. i could also care less if i ended up in the hostpital.. anything would make me happy to get me away from home.
Good Lord!:confused:
Alphabet, the members of this discussion group are responsible professionals. Your last comment embarrasses me.
There are many people such as those who offered thoughtful consideration to the original question who do not necessarily treasure trash.
you people seemed very worried. i should have mentioned that someone else is helping me with this project, whos been a refridgeration and automotive technition for 45 years. and if you cant tell, im not having a good day today, equipment around the house and shop is dropping like flies...
Ive decided to cancel this project. I dont really want to waste my money on this, but, i am starting yet another project involving a mini fridge, and my 3/4hp scroll compressor, and 60$.
this time, i will have to pay someone to charge the refridgerator with the refridgerant i need. theirs no way i can get it otherwise.
http://www.refrigeration-engineer.co...&threadid=1119 for those who are slighly interested, or just bored.
i would bet the dime you have left.that you have a superheat issue from your hair dryer