Thread: Refrigerant R413A

Originally Posted by 123rover50

Same as R 12. Suck it up till the bubbles dissapear.

That definitely won't work for i capillery system.....................
.
Where most of the 'drop in' replacements for the good old R12 designed systems, fall down, is at low temp,such as domestic refrigerators & any type of freezer.

R409a is one of the exceptions mainly because it has a lot of R22 in it.The more 134a you have in the replacement refrigerant,the worse it is at low temps.

At medium temp they aren't to bad
At high temp it they also aren't to bad,but they must have a well sized condenser.

easy to work out...

in an enclosed room crack open the bottle and hold a lit match to the nozzle.

IF you drop dead of phosgene poisoning it was the R134

If you die from an explosion and subsequent burns it was the propane.

Originally Posted by 123rover50

So what have I sucked up first. The R134 or the Propane.?

You will never know.

It will never be as good as when it had R12,as r413a has too much r134a in it.

I have inadvertantly charge refrigerants as a vapour when should have been charged as a liquid & never had a problem,but the systems have been larger than yours.

Anyway,once the Carbon levey comes in,no one will be able to afford the stuff anyway

Originally Posted by Blknight.aus

easy to work out...

in an enclosed room crack open the bottle and hold a lit match to the nozzle.

IF you drop dead of phosgene poisoning it was the R134

If you die from an explosion and subsequent burns it was the propane.

R134a when burns causes phosgene,didn't think it had chlorine in it?

If it does,i could go back to the old reliable leak lamp.....

I could try the test,but with all the rules,i would lose my license & probably end up in jail

Originally Posted by scarry

That definitely won't work for i capillery system.....................
.
Where most of the 'drop in' replacements for the good old R12 designed systems, fall down, is at low temp,such as domestic refrigerators & any type of freezer.

R409a is one of the exceptions mainly because it has a lot of R22 in it.The more 134a you have in the replacement refrigerant,the worse it is at low temps.

At medium temp they aren't to bad
At high temp it they also aren't to bad,but they must have a well sized condenser.

Its a eutectic plate freezer so its low temps I am after. Its not capillary tube, I put in 1 ton TX valves. I have two in parallel with line valves to select in case of a blockage. Big roof mounted condenser and also use it as aircon in the cab by selecting which of the two liquid line valves I open. Thought I may be able to use both but does not work that way.
Its one or the other but of course the aircon gives higher head pressures so dont use it as the freezer was the primary reason for building it.

Originally Posted by 123rover50

I put in 1 ton TX valves. I have two in parallel with line valves to select in case of a blockage.

Reminds me of the days i used to do trawlers!