R600 & R134 ok to make a blend?

[fenair]

Hi All,
I have a customer with a 1953 G.E.C. fridge, which has at some time been fully restored.

The fridge has a R12 compressor, and the poor old fridge has lost sufficient gas not to function well.

I have been searching all over this site, and else were to find a solution to my problem,

that is, i am reluctant to refill the unit ( upon successful pressure test ) with HC (R600) refrigerant, as the item is old and i fear a future emission and want to avoid an exploding fridge scenario.

So i am trying to find R413 (isceon R49) in a kilo can, but no joy.... i have used this in the past but no one seems to stock anymore that i know of.

my only other idea to alleviate this problem is, could i add a small percentage of R600 and complete with R134a???
Any help would be appreciated

Kind Regards
pat...

[install monkey]

bet tonto has 49 or 12

[fenair]

tonto? sorry not with you...

[stufus]

The lone rangers mate..

[fenair]

me thinks this will be a long night....

[install monkey]

tonto is the domestic king of norfolk!! send him a pm,search for tonto in the search bar at the top right corner of the RE page

[fenair]

Cheers I M found him ...
Regards

Pat..

[Grizzly]

Hi fenair.
Also it's worth pointing out that 134a molecules are much smaller than R12.
The same with R49.
With R49 I was advised by Isceon (Many moon ago) to charge by weight less 10%.

A gas tight R12 system can leak like a sieve with the above replacements.
You were wise to question your blend option and even wiser not to do it!

On a domestic provided you have no flexible hoses all may well be good.
Grizzly

PS Tonto is good for most of us when faced with a domestic!

[tonto33]

masterpart used to do r49 1kg bottle tried to check for u but there website is down stupid mother fookers

[tonto33]

r413a no longer available due to some jumped up little @#*~# sitting in his office banning everything in the world http://www.partmaster.co.uk/cgi-bin/...009&query=R413

[fenair]

Thanks gents for you comments, and thanks tonto, for looking, this is what i have found, sadly or not it was about 3 years ago, i used R49, as i had ran out of RS24, now both are in the rocking horse sector...

On many vehicles i do, i have been advised to do and to this day it works, to drain if i can the oil, and add 250 ml of POE and charge with 134a, different system sizes and make up i know, but is this possible to do on a domestic, which pipe on the compressor should i inject oil in and are there any pit falls...

Comments greatly received...

Pat..

[tonto33]

can get r413a 1kg bottle stupid re showing wrong bottle wont let me change it