G2 vs "refrigeration and air conditioning mechanic "

[wantboost]

What exactly is the difference on the a/c side obviously schooling and license /apprenticeship

[tenletters]

One is the heating side (G2) and the other is comfort cooling or refrigeration (313d for residential cooling or 313a for commercial).

[Porcupinepuffer]

Technically, the 313d is not refrigeration. It's just air conditioning for residential up to a maximum size of 5 tons. The 313A is your air conditioning up to all sizes, and including refrigeration systems.

And a 313A license is instant access to a decent living wage. Same cannot be expected with a G2.

[tenletters]

It's just air conditioning for residential up to a maximum size of 5 tons.

What I didn't even know about my own license for quite a while was a normal residential unit under 5 tons in a business requires a 313a license.