Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
r-22 conversion to 421a choice refrigerant
Options
fellas this is the replacement for r-22, no many parts house carry it, but you have a EPA card and are a legitimate business I will sell it to. I have used it for years to years there is no decrease if eff, no oil changes required.
david broome
david broome
0
Comments
-
Conversion
how about TXV and/or orifice changeout due to new superheat readings w/ the 421a?0
This discussion has been closed.
Categories
- All Categories
- 85.2K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 55 Biomass
- 424 Carbon Monoxide Awareness
- 73 Chimneys & Flues
- 1.9K Domestic Hot Water
- 5.2K Gas Heating
- 129 Geothermal
- 160 Indoor-Air Quality
- 3.3K Oil Heating
- 61 Pipe Deterioration
- 884 Plumbing
- 5.9K Radiant Heating
- 376 Solar
- 14.7K Strictly Steam
- 3.2K Thermostats and Controls
- 59 Water Quality
- 49 Industry Classes
- 89 Job Opportunities
- 28 Recall Announcements