r12 system

[jpsmith1cm]

134a leaks where other refrigerants do not.... i quit using it years ago ...hate the stuff

They ALL leak.

Every last one of 'em.

[carmon]

I agree with that....

[VTP99]

They ALL leak.

Every last one of 'em.

They sure do. No such thing as a leak proof system. It's just a question of how much and how fast.

[kerreckt]

I use R414B and never have had a problem.

[kamersoutdoor]

409A for 12, and 408a for 502 work fine for me. Just depends on application.

[btack]

409A for 12, and 408a for 502 work fine for me. Just depends on application.

X2

Sent from my amazing 4G device

[Russ57]

R-401A runs a little lower head/hot gas temp so I like it a little better than R-409A. Both work fine though. No need to change TXV. I use 100% alkylbenzene oil. MP39 is claimed to work just fine with mineral oil (IIRC).

[ZeroTolerance]

401a

[FL.HVAC]

im also in the south florida area im in miami just curious to know what part of town your in??? nice to see others in the area on here

yeah it is good to see some southerners. I am in west palm beach.

[ICanHas]

Do refrigeration techs normally carry a refrigerant identifier as a part of their arsenal?

It was common in MVAC shops to keep the shops R12 from getting dirty from all kinds of creative mixtures people put in their car AC.

[timebuilder]

Do refrigeration techs normally carry a refrigerant identifier as a part of their arsenal?

It was common in MVAC shops to keep the shops R12 from getting dirty from all kinds of creative mixtures people put in their car AC.

Are you talking about the TIF machine that Snap On was selling?

[matt1124]

134a with cap tubes.... thanks for that little gem whoever thought up that combination.... grumble grumble

[ICanHas]

134a leaks where other refrigerants do not.... i quit using it years ago ...hate the stuff

If you're using it with elastomers and hoses not meant for 134a, then this is hardly a surprise.