I have 2 older units from 1984. They are R22. I have purchased 2 preowned units that are 410a. I need the old units taken out, the new units installed, and possible new copper lines? I am not sure with having r22 before and switching to 410a.. if I will need to switch the lines? Does anyone know? I am in Deltona, FL. Thank you!!
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3 responses so far ↓
1 madmother15 // Jun 26, 2009
As a co owner of an installation company, I would advise that your local companies will not be too happy that you are looking for one of their employees to take away work from their business. If it was one of my employees, they would immediately loose their job.
2 JBL // Jun 26, 2009
The refrigerant lines need to be sized to the equipment. If they are the proper size they will need to be thoroughly cleaned so no cross contamination occurs.
As for the installation; an installer working on his or her own time is indicative of a job being done with out a permit and perhaps without a license which is not a good idea for you since you have no insurance coverage in the event of an accident during installation.
I am not saying there are not qualified employees out their who could help, but our industry frowns heavily on moonlighting. If you want a fair price get several competitive bids from local contractors. Be sure to compare well written bids and insist on permits.
Be aware that Florida has an energy code and equipment in many municipalities must have a matched ARI rating and meet energy code to be issued a permit.
Best wishes
3 SandShark // Jun 26, 2009
First of all, if all you're replacing is the condensing units without changing at least the evaporator coils, you're asking for trouble down the road. There are evaporator coils that are both R-22 and R-410A compatible, but in order to install a R-410A condensing unit on an existing evaporator coil, all the oil needs to be removed from the evaporator coil and refrigerant lines. Though it's possible to remove almost all the oil from the refrigerant lines, it's almost impossible to remove all the oil from the evaporator coil. Secondly, and this is worth repeating, having "moonlighters" or "jake-legs" do this is highly frowned upon by professionals in the business and, as mentioned, you're opening yourself up to a lawsuit if one of them were to get injured on your job. Also, you're going to be hard pressed to find a legitimate company that will install second-hand equipment. I'm not saying there aren't companies out there that will install the equipment, it's just that most established, reputable companies will not. I'm curious. How does one come across pre-owned R-410A units in the first place?
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