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Title: Brazing leaks on evaporator or new evaporator for Vendo 56 squaretop Post by: choice120 on January 04, 2009, 08:14:09 am Can anyone tell me if you can have leaks brazed on the evap. My leaks are not whthere already is a brazed joint. Does anyone know where I can get a ne evaporator and have it installed since the rest of my system is good. thanks
Title: Re: Brazing leaks on evaporator or new evaporator for Vendo 56 squaretop Post by: coke_and_stuff on January 04, 2009, 09:25:14 am I honestly dont know if it can be done, It will probably be cheaper to buy a used unit and rebuilt it. I have a buyer and sell all evaportaors for $100.00 each. He bought 12 a few months ago and didnt even think twice about it.
Title: Re: Brazing leaks on evaporator or new evaporator for Vendo 56 squaretop Post by: BrianB on January 07, 2009, 11:40:55 am Yes, you can braze leaks on evaporator coils. I have a refrigeration deck that has a repaired evap coil. This came out of my very first machine, a VF-117. I was goofing around with the vending solenoid and got a screwdrive hung-up on the solenoid contacts and shorted the screwdriver blade against an evap coil which resulted in a nice arc flash, a popping noise followed shortly by a hissing letting me know that my refrigerant was leaking out!!
I had an A/C reapairman friend of mine fix it. He used a propane torch and some solder and had it fixed in a few seconds. His biggest concern was getting the right amount of solder in place. Too much and you run the risk of dropping solder balls into the evap line wich is no good. After watching him I'm very confident that I could repeat his fix. After you plug the hole you have to pull a vacuum on the deck to make sure that the fix is good and that there aren't any other leaks. We left mine under vacumm overnight to see if there was any movement on the gauge. Once this is accomplished you weigh-in the correct amount of refrigerant (R-12, R-134) and test to see if the deck cools properly. |