R12A Gas

[portaz]

Anyone know anywhere in Sydney who regassed using r12a ? I did 134 but blew the compressor I'm thinking due to extra head pressure it runs and research tells me. R12A is a better option

Scott

[Sinista32]

So you had the Retrofit done?

The reason:

In 1989, the Australian Government restricted the use of refrigerant R12 under the Ozone Protection Act, thus requiring replacement of the use of R12 with the environmentally friendly R134a gas.

R12 to R134a conversion (retro-fitting) for older vehicles conditioned to use the R12 gas, as R12 gas is no longer available to consumers.

Think there is more to it than just changing from R12 to R134a.

Also any shop that is still doing R12 would be putting their livelihood at risk

Edit: Had mine retrofitted about 16months back. Going strong and cold

Edited January 2, 2014 by Sinista32

[portaz]

Yes it's different stuff though it's called hychill and will more than likely replace 134a , I had the oil changed system evacuated and r134a added lasted one day before over pressure , guys are traders on sau and very good to deal with but my research says maybe too much gas was added or something as 32's are designed for r12 which runs at less head pressure, who did yours? Do you know how much oil and gas was added?

[Sinista32]

I can ask them tomorrow, if they're open. I just did a walk in and walk out after leaving cash.

Southern Automotive Services in Canberra. A/C is one of their forte's

[MrStabby]

Pretty sure most of us are running 134 with no problems - i know i am. Maybe your compressor died because its 20+ years old.

[White GTS-T]

Hychill will not replace R134a. The only reason it became popular was due to a legislative loophole, which is now being closed.

Meaning, misinformed and unlicensed business/traders were technically able to purchase the gas and consequently service peoples cars.

As an ARC licensed mechanic, my advice would be to take it to a licenced business who knows what they are doing.

[portaz]

Yes absolutely could be I just worry cause the amount if guesswork with volumes and pressures and if there is a better gas that works at specs posted on the compressor why not look into it? It was actually working very well till the relief valve opened but this other gas is much more efficient and runs less pressure it's used in many older fords and Holden's that are just not suited to 134a anyway I will look into costs as it can be bought locally and see if someone will do it for me otherwise I could but a manifold and DIY

[White GTS-T]

I will look into costs as it can be bought locally and see if someone will do it for me otherwise I could but a manifold and DIY

╮(╯_╰)╭

Edited January 2, 2014 by White GTS-T

[portaz]

With the 134 conversion I have spoken to a few shops, some say need new filter and tx valve oil etc some say different hi low switch some say nothing just evacuate and recharge its a bit confusing , at least hychill is seemingly compatable with all systems from what I read

[portaz]

And I wrote that before your post came up on my phone in case your confused lol I just don't want to go through another compressor, parts cannot be purchased for them so it's second hand or big bucks for a new one if they can still be bought so I was just trying to reduce the workload on the poor old thing but if I can't then I can't

[White GTS-T]

Yeah that is fair enough, but the thing with air con is that you can't half do it. In for a penny, in for a pound. And you really have to know what you are doing. If you think that's bad, spare a thought for some cool room systems that use 404 gas. Its $300+ per kg.

Edited January 2, 2014 by White GTS-T

[portaz]

Wow bugger that's a fair bit if cash!

[Simon-S14]

R12 is 800 + a kg lol and really is an awesome refrigerant but pity it's so toxic

[R33shaun]

Yeah that is fair enough, but the thing with air con is that you can't half do it. In for a penny, in for a pound. And you really have to know what you are doing. If you think that's bad, spare a thought for some cool room systems that use 404 gas. Its $300+ per kg.

I did a compressor change on an underground chiller that took over a hundred kilos of r12, most big chillers still use it cos its the shit.

Also fridge gas got a new environmental tax or some such in the last year or so. That's why "$100 regassess" aren't advertised as much anymore, it costs way more in refridgerant.

[White GTS-T]

That's crazy. The biggest system I've serviced was on a bus that held 9kg.Yes the Carbon Tax did up the price of gas by 300%. But as of the 1st of July, the Tax is being repealed.

Edited January 2, 2014 by White GTS-T

[R33shaun]

The chiller I did was a baby my boss said, at that was only one side of it, it ran parallel compressor ccts. It was cooling water for a swampy that was lucky if it dropped 2deg off ambient air temp, mines have to much money lol. Bit off topic though.

to op change your dryer/receiver and vac out properly and pressure test, then regass while checking your pressures and temps and there shouldn't be any dramas.

Edited January 2, 2014 by R33shaun

[portaz]

Well I ended up doing it myself after system was professionally evacuated previously . I got a rig , oil with uv and hychill, I know it is probably not legal and frowned upon but what's the difference with other things we do ourselves ? Anyway it's nice and cool pretty easy to do hopefully it lasts if not the can only cost $21 so worth the risk if it doesn't and I will hard wire fan to come on with a/c button too just to help things along.

Scott

[niZmO_Man]

Hahah gas my car's aircon please? Actually, I think mine's R134A, aww.