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wilber
17-12-2005, 04:52 PM
can someone tell me do i need to change the oil if i swap a fridge from r600 to r134a,is it as easy as that or is it not
wilber:confused:

chillin out
17-12-2005, 11:03 PM
Hi Wilber,

To change a system from R600 to R134a is easy..

All you have to do is change the comp, cond, evap, suction pipe and the capillary.

After that, vac the system and recharge with R134a.


Chillin:) :)

Brian_UK
17-12-2005, 11:58 PM
Nice succinct answer there Chillin, always good to see ;)

Andy W
18-12-2005, 12:26 AM
Alternatively, cut the filter drier out, purge the system with OFN, solder in a new drier and recharge with R49, it works fine but the compressor is slightly oversized on R49. If changing the compressor on say a double door bottle cooler, you need to resize the compressor prior to recharging with R49, a double door becomes an Embraco EM 55, works just fine!

chillin out
18-12-2005, 12:54 AM
Alternatively, cut the filter drier out, purge the system with OFN, solder in a new drier and recharge with R49, it works fine but the compressor is slightly oversized on R49. If changing the compressor on say a double door bottle cooler, you need to resize the compressor prior to recharging with R49, a double door becomes an Embraco EM 55, works just fine!
If you are going to do that, you will have to chop off most of the capillary.

The cap in R600 is always about 10 miles long compared to other systems.


Chillin:) :)

Abe
18-12-2005, 12:55 AM
Andy

Embraco 55 is how many cc's?

thx

Andy W
18-12-2005, 09:44 AM
Let me remind you after trying to get rid og the explosive gas in case there is trapped gas between the discharge pipe before the blocked capilary brov you can hear a nice "bang""bang" .This is my opinion i am just trting to make my brane work in the early London morning.........cheers:DThat is why I always cut out the filter drier and blow all the circuits throgh with OFN just in case there is a blockage or even a pocket of oil / gas. I use a VAX 4 charging stub with a length of condensate hose attached and use that for a quick connector to blow the circuits through. The first time I was a told to replace R600 with R49 I too raised my eyebrows, but after recharging many Elstar bottle coolers this way I have had no problems with them at all, like I said the compressor becomes oversized and obviously the suction pressure drops but does not cause overheating. Regarding the cc of the Embraco 55 it is 5.5cc, we fit them to all the double door coolers except the Concorde which takes a FG85 and we fit from memory EM40 to the single door chillers, this is what my wholesaler has always advised.

t_gregorius
18-12-2005, 11:23 AM
Hi wilber!

In my opinion, you have to change the refrigerating oil from MO(Mineral Oil) to POE.

MO(usually use in R600a) can`t circulate in a refrigeration cycle mixed with R134a. So it is possible to make a wear problem.

greg from korea

t_gregorius
18-12-2005, 11:27 AM
Hi Wilber,

To change a system from R600 to R134a is easy..

All you have to do is change the comp, cond, evap, suction pipe and the capillary.

After that, vac the system and recharge with R134a.


Chillin:) :)

Kidding? How about buying a new R600a fridge, huh?

Abe
18-12-2005, 01:22 PM
Regarding the cc of the Embraco 55 it is 5.5cc, we fit them to all the double door coolers except the Concorde which takes a FG85 and we fit from memory EM40 to the single door chillers, this is what my wholesaler has always advised.


On Single Doors ( MK Courier ) and the like I use Embraco 7.5 cc

On 2 Door I use the Embraco 10cc

I think I am fitting too big a compressor , but was under impression the EM 55 or EM 40 would be too small

But , maybe I ought to consider using these now

slingblade
18-12-2005, 01:32 PM
Hi Wilber,

To change a system from R600 to R134a is easy..

All you have to do is change the comp, cond, evap, suction pipe and the capillary.

After that, vac the system and recharge with R134a.


Chillin:) :)

LOL.:D :D :D :D :D

wilber
18-12-2005, 04:44 PM
sod it new fridge being delivered tuesday

Andy W
18-12-2005, 09:04 PM
On Single Doors ( MK Courier ) and the like I use Embraco 7.5 cc

On 2 Door I use the Embraco 10cc

I think I am fitting too big a compressor , but was under impression the EM 55 or EM 40 would be too small

But , maybe I ought to consider using these nowSpeak to Mark at CARS (UK) ltd, he has a lot of knowledge of this type of thing and he is an Embraco distributor as well, where ever you buy your Embracos from will come from him anyway. 01782 823333