Thread: Regas with Hychill -30

Originally Posted by klonk

...

LPG refrigerants may work well in some situations but I don't fancy my fridge or freezer in the house using it. What would happen to the sealed compressor during an electrical burnout, one way to clean out the fridge! Glad we don't live near a supermarket. Horses for courses I suppose.

Cheers Steve

Originally Posted by College of Climate Change

Bosch, Electrolux, Miele, Whirlpool, Delonghi and AEG are just a few of the manufacturers who have already turned to using Hydrocarbons throughout their product range. There are currently over 400 million hydrocarbon, or Greenfreeze, refrigerators in the world today!

How many house explosions have you heard of from hydrocarbon refrigerant fridges?

Originally Posted by klonk

PLEASE! Make sure you label which type of muck sorry refrigerant you have used.I have turned down jobs that don't have service stickers or labels rather than risk poisoning my recovery gear and having to dispose of mixed gasses. And the fines for releasing 134a would put my family on the street.

But I agree with all the comments below, big company's control the worlds economy's like it or not , followed by cowardly politicians.

R134a is,was banned in Europe and to be phased out here by 2017 .Replaced by HFO1234yf which was better for the environment but is 6% less efficient than 134a, but they found it had a problem, it was flammable. Funny that . 134a won't burn at 500deg C but the oil burns at 200degC.
Chlorine from R12 has a 130 year life span in the ozone layer , so at the time 134a was a big improvement as it only has a 16 year lifespan as a greenhouse gas.

LPG refrigerants may work well in some situations but I don't fancy my fridge or freezer in the house using it. What would happen to the sealed compressor during an electrical burnout, one way to clean out the fridge! Glad we don't live near a supermarket. Horses for courses I suppose.

Cheers Steve

PS At zero psi R12 boils at -29.7 R134a. - 26.6 and hychill 30 -37.8

Guess what .... Most of the "greenfreeze" type fridges are hydrocarbon gasses. The gas leak would have to be MASSIVE for it to ignite. Your average car system will have only 300grams in it. You fridge probably a fraction of that .... The OIL ... You know the stuff R134a uses as well also burns .... burns really nicely too

I've been using hychill for years. I agree it will cause issues at A/C places where there recovery equipment is setup for R134a. Then again, there not going to re-use any of the 134a recovered anywhere, so it's really a non-event. The oil will be the issue, if the system being recovered is using the old R12 oil, R134 recovery machines aren't going to like it.

In Victoria HR12 (hychill -30) is available from any bursons store. If they try to bull**** you with the "You need a refrigeration certificate" type crap. tell 'em it's just a glorified BBQ gas, and if you can't buy that you can't buy LPG either (which is true!).

I rekcon hychill is bloody brilliant stuff, especially in our old cars where R12 sucked bad enough, without losing a heap of efficency by swapping to R134a which IS a ****load less efficient.

I researched a heap on HR12 before I started using it. The only news stories on automotive A/C fires world wide I could find all had one thing in common..... That being they all had R134a in them ( it might not burn at normal atmosphereic pressures, but it sure as **** does at high pressure when mixed with oil ).

Be warned the small disposable can fitting for hychill is quite expensive, I just have a 4.5kg bottle myself.

Putting Hychill into a freezer truck or huge systems scares the **** out of me.... It's too much highly flamable gas that can leak into a sealed room (a huge refrigerator truck could leak a couple of kg's of gas into the sealed monster sized cool room.... THAT I do find scary. Having said that it's not HR12 that's used in big cool rooms, it's a different hychill gas, it's still likely highly flamable though!

If anyone is trying to get an old land rover A/C system working in ballarat, just let me know, there welcome to try some hychill in it.

seeya,
Shane L.

Originally Posted by Lotz-A-Landies

If hychill is a hydrocarbon refrigerant, yes it is legal but not readily available. People get scared about myths put out by refrigerant manufacturers like Dupont.

People don't worry about 90kg of LPG behind the seat in a taxi but worry about less than 500gms of hydrocarbon refrigerant in a sealed a/c system.

I have about 5kg of Care 30 another hydrocarbon refrigerant on my front porch, but need to change the York compressor on the '85 to use it (or recharge it.)

Problem is that I no longer speak to my oxygen thief brother to get him to do the job.

I have a younger brother I no longer have contact with either. Probably worse than yours as mine has done time
Why do you need to change out the York?
I have one in the 6x6 that I charged up 13yrs ago and its still going.
With that system I am using R413a which is a drop in for R12 also but its a combination Freezer/Fridge primarily with aircon as a second.
I have been thinking of pumping the 413 back into the bottle and using hychill in it too.

Originally Posted by 123rover50

I have a younger brother I no longer have contact with either. Probably worse than yours as mine has done time
Why do you need to change out the York?
I have one in the 6x6 that I charged up 13yrs ago and its still going.
With that system I am using R413a which is a drop in for R12 also but its a combination Freezer/Fridge primarily with aircon as a second.
I have been thinking of pumping the 413 back into the bottle and using hychill in it too.

Because after 30 years of service it needs reconditioning.

Try to get that sort of life out of a Sanden compressor!

Originally Posted by 123rover50

I have been thinking of pumping the 413 back into the bottle and using hychill in it too.

I wouldn't as

a) R413a (Isceon49) is an excellent drop in replacement refrigerant that is roughly 7-8% more efficient than R134a in most applications.

b) The downside is that you'll more than likely upset the balance of gasses when recovering it as it's an zeotrope and therefore bugger it's use for the future.

Originally Posted by rick130

I wouldn't as

a) R413a (Isceon49) is an excellent drop in replacement refrigerant that is roughly 7-8% more efficient than R134a in most applications.

b) The downside is that you'll more than likely upset the balance of gasses when recovering it as it's an zeotrope and therefore bugger it's use for the future.

a) I knew it was better than R134a but cant understand why it is not used more in aircon here. Most frigies I talk to know nothing about it.

b) I thought I might have been able to get it all out without upsetting the balance. I will leave it there for a while then. Its OK but I cant get the freezer as cold as I could with R12.

Too much glide with Isceon49 in low temp applications.

R134a is compromised there too, but you'll get away with it in a house fridge/freezer, R12 was much more stable at those low evaporating temps.

R409a is a better choice for old R12 freezer applications, but you can't use it in auto air as the discharge pressures and more importantly temps are excessive at high suction pressures.

It sounds like a few members here have considerable refrigerant experience, can someone give me some advice?
Bear in mind I know very little about refrigeration.
I need to get the aircon on my daughter's Vectra working.
The compressor which is less than two years old dumped all the oil and gas. I got an aircon guy out and he said the seal on the shaft has gone? Is it possible to replace the seal or does the compressor need replacing?
I am thinking as the system is effectively dry this would be an opportunity to change to Hychill. So besides replacing the condenser drier would anything else need changing?