Master How to Add Refrigerant to an AC Unit in 12 Easy Steps

R32 vs R290 vs R134a vs R12 Refrigerant
With more refrigeration and HVAC units being retrofitted to support new refrigerant bans and protocols, knowing about these key chemicals is crucial to maintenance and repairs. When technicians and facility managers search the web to learn about the refrigerant in the unit they're working on, there are four types that often...
What Happens If You Put R134a in an R12 System?
There are many answers to the question of whether or not you can put R134a refrigerant into an R12 system, and that’s for good reason. R134a and R12 are two different types of refrigerant used in A/C and refrigeration systems, and while they have the same function (cooling), they are actually opposites of one another. That’s...
R134a Pressure Chart for Refrigerators, Prep Tables & More
R134a refrigerant is an ethane-based hydrofluorocarbon used in a wide variety of refrigeration equipment, HVAC units and cars. Used as a primary replacement for R12 refrigerant, R134a refrigerant is considered a safe option because it has non-toxic and non-flammable properties and doesn't corrode. To help service technicians...
R12 to R134a Conversion Chart & Formula
Retrofitting a unit from R12 to R134a refrigerant requires you to adjust the charge accordingly. The volume of r134a refrigerant is lighter than the same amount r12 refrigerant. This not only is important to know for commercial refrigeration units, but it also is vital when making repairs on HVAC equipment and even cars. Fortunately,...