Anyone using HFO-1234yf?

[Discseven]

Interested if anyone has experience with HFO-1234yf? Price... handling... charging... performance... etc.

[DRACO A5OG]

Interesting.

I have been using ES12a ( now named ES134a for the EPA cops ), So far has not ignited on me after 8 years. Yeah, I know, we do have the gas tank and engine bay fuel lines in the wrong places too, right

I would be curious how the newfangled product works and it's side effects, I hope they got rid of the testical cancer ingredient like the lovely R134a has.

[Discseven]

New one to me Brother Jim. Just been digging around online for intel. Word is ES12 works better than R134a and R12. Have also seen info where people can't get it to work.

Reason for my query is I have stripped my AC to the bone, replacing comp, hose, TXV, R/D... and soon ready to charge system. I've gotten R134 to 33 dF vent temp but if there's lower v-temps to be had, why not get'em.

One thing that stood out to me was someone saying ES12 can easily be overcharged... that it needs to be charged with a system under a low vacuum. Is that your experience?

[ganun]

Originally Posted by DRACO A5OG

Interesting.

I have been using ES12a ( now named ES134a for the EPA cops ), So far has not ignited on me after 8 years. Yeah, I know, we do have the gas tank and engine bay fuel lines in the wrong places too, right

I would be curious how the newfangled product works and it's side effects, I hope they got rid of the testical cancer ingredient like the lovely R134a has.

I just looked up their web site, it says don't pull a vac, I am fixing an evap leak in the Peugeot that was running R12 and was really cold, but rather than do a complete conversion to 134 , read a pain, I am going to use this ES12a,..... imagine, no vacuum. It has a Sanden 510 with 2, two speed pusher fans and an engine driven puller fan for the cond with a block type exp valve.
It will be a few weeks.

Hydrocarbon Refrigerants

[DRACO A5OG]

No issues for me at 1800 RPMs charging the system

Just filled only 80% r12 capacity requirements

[Nick Triesch]

33 at the vent!!! Holy cow!! And you want lower???? Just stop!

[darrin]

looks like both es-12 and HFO-1234yf are both flammable (unlike r-12 and r-134a which are inert). Not sure I'd want a flammable gas leaking post-colision.

[ganun]

It it gets hit that hard, I'd say its toast anyways, also depends on the ride...

Peugeot wagon with 300,k miles vs vintage 911

[db_cooper]

Originally Posted by darrin

looks like both es-12 and HFO-1234yf are both flammable (unlike r-12 and r-134a which are inert). Not sure I'd want a flammable gas leaking post-colision.

Just an FYI..R-12 and R-134 are not inert and combined with PAG or mineral oil..burns very nicely. R-12 when burning creates phosgene gas..very popular in WWI.
The lubricating oils that are used with R-134 are synthetic and are more toxic than the mineral oils when burnt.

It is all nasty stuff if there is a fire.

[darrin]

Thanks for the clarification! --

[Discseven]

Originally Posted by DRACO A5OG

No issues for me at 1800 RPMs charging the system

Just filled only 80% r12 capacity requirements

Do you recall/know manifold pressures?

[Discseven]

Originally Posted by Nick Triesch

33 at the vent!!! Holy cow!! And you want lower???? Just stop!

Am chasing Ron's 29 dF v-tempt for the fun of it. (He runs R134a. Game has no rules so any refrigerant goes.)

[Discseven]

Originally Posted by ganun

...
It will be a few weeks.

Hydrocarbon Refrigerants

George... you mean it will be a few weeks till you charge system?

[ganun]

Originally Posted by Discseven

George... you mean it will be a few weeks till you charge system?

Yep, Have yet to start the project, its not just the ac.....

BTW 29F in Miami WILL get you a nice block of ice in the evap box, ask me how I know, I got pics, but, running out there in the west with the rH at single digits or even in the teens its OK, did that too with the digial thermostat that allows full control.

[Rawknees'Turbo]

Originally Posted by Nick Triesch

33 at the vent!!! Holy cow!! And you want lower???? Just stop!

Originally Posted by Discseven

Am chasing Ron's 29 dF v-tempt for the fun of it. (He runs R134a. Game has no rules so any refrigerant goes.)

Karl, pay no mind to SickNick's commentay - bisch is consumed with jealousy (as are you, buttofcourse)!

[Discseven]

George... Here's Mr. 29dF himself ^^^ Rawnuckles'Turbot. If I'm not mistaken, I asked Rono about icing in 2014's AC expedition. Had he said "yes... my system is all ice'd up"... end of quest for that temp. As I recall, Rono has no problem with icing and he's in Texas. Ron, comments pls.

No jealousy butt-bro. Just want to see if I can get this system beyond the holy grail as you have. Maybe George is right. In the "swamp"... below 32 there be demons.

[Nick Triesch]

I got a 52 degrees today! My cabin cooled down to 87! Life is good!

[DRACO A5OG]

Originally Posted by Discseven

Do you recall/know manifold pressures?

Sorry Brother Carl, I do not remember but I went by the chart with humidity settings to get a more accurate fill.

[Rawknees'Turbo]

Originally Posted by Discseven

George... Here's Mr. 29dF himself ^^^ Rawnuckles'Turbot. If I'm not mistaken, I asked Rono about icing in 2014's AC expedition. Had he said "yes... my system is all ice'd up"... end of quest for that temp. As I recall, Rono has no problem with icing and he's in Texas. Ron, comments pls.

No jealousy butt-bro. Just want to see if I can get this system beyond the holy grail as you have. Maybe George is right. In the "swamp"... below 32 there be demons.

Karlicious, I have not had any icing problems since changing to the serpentine evaporator, T-Rex blower motor, and perfecting evac and charging techniques. Prior to all that, I did have some icing problems with the original evap, blower motor and probably less than stellar charging/evac.

Now mind you, that with the ability to reach such cold vent temps, the system does not need to operate on "full blast" (full "cold" thermostat setting) except in above 90 degree weather. When it's in the 80s, and if all controls are on max, I see vent temps in the 26 degree range, and if I were to run it like that for a long period, maybe it would ice, but by then I probably wouldn't be able to move my limbs in order to adjust the a/c controls due to rigormortis-like frozen status.

Also, while very humid here, I think that where you live is on an entirely different level of sogginess (though not as hot) - I'm sure that plays an important role.

Originally Posted by Nick Triesch

I got a 52 degrees today! My cabin cooled down to 87! Life is good!

What was the outside ambient temp at that time, Nick - 88 degrees?!?!

[Rawknees'Turbo]

^^^^

Here is with outside temps of mid 80s (I think - pic is two years old) - homage must be paid, Bro!!!