He has his EPA license and he has went to school to become HVAC technician. He is getting ready to start purchasing equipment and supplies needed to start his own business but we are uncertain what stores sell the refrigerant that you can only purchase with yout EPA license. I did an online search and discovered that Sam's Club sells R-134-A Refrigerant in 30 pound disposable cylinder but I haven't had any luck finding another company in our area that sells refrigerant, could anyone tell us of a store or a supplier that sells refrigerant? We live in North Wilkesboro, NC... thanks for your help!
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Some HVAC 'experts' install coil lines without a pressure outlet. (ecspecially older units) In which case, you will have to install one. Usually they are located outside very close to the compressor unit on the inflow copper line. If not present, you can chase the lines back to the cooler head in the furnace/cooling unit plenum. It would be visible at some point in the lines if it was installed in the first place.
Since you can't buy refrigerant, without an EPA license - you're not really going to do more than install a package unit or "window shaker". 12,000 BTUs = 1Ton. The type of insulation in walls, attic floor and the type space under the lowest cooled space, window size and number all come into play. Additionally, you don't want too much A/C, because doing that will cool the space too quickly - and not remove the humidity. That will leave the area feeling uncomfortably clammy. Your pro HVAC contractor can do this for you right the first time.
You have to have a refrigeration license to do so because of recovery and EPA guidelines so you would need a licensed refrigeration technician to recharge your unit. Most cooling problems are not freon related, just fyi!
It is against federal law to work with refrigerants without an EPA license.
You cannot buy the special tools and equipment required to work with refrigerant
without a license. most a/c do not have a charging valve the pros have to solder on a part. best left to the pros to do this, if you do not have a license. good-day !
HVAC repairs should be done by certified technicians. The United States Environmental Protection Agency (EPA) has required that all persons handling refrigerants should be certified. If you are not certified you can't legally buy refrigerants.
Depends on what refrigerant is in the system. This is not something you can do yourself either way due to the fact that an EPA license is required to purchase any type of refrigerant besides R-134A. You are going to have to have an HVAC contractor do it because you also need a set of manifold gauges and know what they are telling you. By the time you purchase all of this it will be cheaper to hire it done and hooking up to the wrong line could cause the refrigerant canister to explode.
Unfortunately, the R-12 refrigerant that your compressor used was phased out on 1994. You will need to an Automotive A/C Shop to have the system evacuated, flushed, vacuumed, retrofitted and charged with R134a refrigerant. This job requires the use of specialized equipment and according to EPA regulations must be performed by a licensed HVAC Technician.
Once your system was retrofitted, if you ever need to re-charge refrigerant. All autoparts carry easy to use, instructions included, R134a refrigerant recharge kits.
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Tempstar will only sell to licensed dealer/contractors. You will have to purchase through your local HVAC contractor that deals Tempstar. They will be able to cross your model # to the correct parts. However, you must have an EPA license to purchase the compressor.
Due to EPA regulations and the complex tools and equipment, I will suggest that you call a EPA licensed technician to do this job. The following is the basic outline of what will be required of this technician.
To install the TXV valve, all of the freon must be recovered from the system. The copper lineset at the indoor unit will then need to be cut open. Since the lines are no longer sealed and have been exposed to the air, filter dryers(s) should be brazed in. After the TXV is brazed in, the system needs to be placed into a vacuum per EPA (to verify no leaks). At that point the old refrigerant may be put back in to the system if it is still OK..
The hard start is really unrelated to the TXV operation. It is not necessary to do this job. Although it does not hurt to install one. Basically the hard start will lower the start/run amperage of the compressor. These are usually used in a "tight" compressor scenarios.
I hope this helps:)
If the person who does this is not licensed by the EPA, the penalties could be horrific. Be warned.
Do not know where you are located, but these people should have never tried to disconnect the unit. Most states require the a person working on a HVAC unit be licensed and the EPA requires that anyone working with freon also be licensed. Venting freon to the atmosphere is a big time no no and subject to a very large fine. I would require this contractor to hire at their expense, a licensed a/c contractor and have them pay for it since they caused the problem. Freon is getting to be very expensive