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View Full Version : Another single stage and... Grrr... another leakfest...



jinu117
10-24-2005, 11:12 PM
Working on another testing unit today to see how 1/5hp embraco fares on X2 heatload. (Compressor from Chilly1)
Got newer revision of Chilly1 evap on this one... :)

http://www.xtremesystems.org/forums/attachment.php?attachmentid=39056&stc=1

Brazing this time was much prettier... almost perfect except the obvious discoloration I usually don't bother prettying up :p

http://www.xtremesystems.org/forums/attachment.php?attachmentid=39058&stc=1

Actually, it wasn't that my skill has become mature (well it is getting close) but help from this new toy...

http://www.xtremesystems.org/forums/attachment.php?attachmentid=39057&stc=1

It basically shoots 3 flames toward center in 120 degree angle apart. All I had to do was center the flame to pipe, wait a little, put the braze rod in, give it a little flow by moving up and down the length of join and I am done. I must have finished all piping brazing in matter of 5-6 minutes. It heats the pipe up much faster than #00 or #2 tip (I don't like using #2 tip on piping as it tends to over heat other things in crowded space) In fact, I had perfect joint on all the brazed parts except...
The frigging schraeder valve on service port (well it is suction port but this compressor had 5/16 on both service and suction so I used service port for suction which is easier to route my suction line... :P) is defective!!!! The factory soldering wasn't done too well and started leaking when I was starting to charge (saw -55c no load than suddenly saw decrease of highside pressure -_- with nice forsting on service line).
If I don't make mistake... it is the defective part... gotta love my luck... :stick:
Anyways, I am going to swap the schraeder valve tomorrow than charge and load testing :P This time cap tubing is 7'6" 0.028. Wish me luck :)

RussC
10-24-2005, 11:50 PM
that looks like the compressor I have, mines a EMI 70HRN? Is that the same as yours?

Im having a hard time with the brazing on the compressor. It looks like you solved this with that fancy torch head...? I pressume you used silver or bronze rod for the brazing?

RussC

jinu117
10-25-2005, 12:03 AM
that looks like the compressor I have, mines a EMI 70HRN? Is that the same as yours?

Im having a hard time with the brazing on the compressor. It looks like you solved this with that fancy torch head...? I pressume you used silver or bronze rod for the brazing?

RussC

Errr... FGS 70HA embraco. It is copper inlet. If you really have problem brazing the thing, try silver 45. If it is steel as you think it is, you will have hard time with silver 15. Just get an oz of silver 45.

RussC
10-25-2005, 12:07 AM
I see, there ~ equal in size and capacity. My issue was I removed the 5/16" copper from the ports on the compressor(I shouldn't have) to make tighter bends. Now I'm paying for that. But I'll know tomorrow.

RussC