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  1. #27
    Join Date
    Feb 2011
    Location
    Peoria, IL
    Posts
    2,149
    Quote Originally Posted by jandsrfgo1 View Post
    No do not add oil the copressor will have the right amount of oil in it. I would be more concerned with oil from the old one trapped in the system. You should have poured the oil out of the failed compressor and madw sure most of it was still in there then acid tested. Since you didn't do that I would add acid nutralizer and a suction line drier and replace the liquid line drier to play it safe. Possibly even flush rx11 through the system as well. Compressors don't fail that fadt unless something really screwed happened.
    just saw the rx11 suggestion, which i will do

  2. #28
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    21,405
    Procedure if it were me (compressor is already out):
    *Blow out entire system with N2... be liberal... half a tank is not too much.
    *Flush with RX11
    *Blow out again, use up the rest of a tank of N2
    *Pipe in new compressor, LL dryer, and SL dryer.
    *Braze with N2 sweep and trickle.
    *Blow out again (just a couple hundred #'s
    *Do pressure test
    *When removing pressure test, use one of those quick-test acid testors (the one you hold on a schrader and blow through). It will turn pink if there is acid. I would hold it on there for around 10 seconds... regardless of what the instructions say.
    *If needed, add 'acid-Away'
    *Pull DEEP vacuum, expect to let the pump chug for an hour
    *If vacuum holds at/below 500 microns, break vacuum with refrigerant... GAS (liquid from drum, fed slowly through gauges, will be gas by the time it hits the system)... slowly until you have some pressure.
    *Charge until you can start the system without the scroll going into a vacuum... Scrolls going into a vacuum is death for a scroll.
    *Charge to proper level, then let it run for an hour or so, then check/fine tune charge
    *In a week, pump it down and remove SL dryer... do NOT un-sweat a filter (this tends to cause the filter to dump moisture--and whatever it is holding--into the system), N2 sweep and braze with N2 trickle
    *N2 purge, vacuum, dump charge, and top off to operating charge.
    *A week later check charge

    Get paid WHAT YOU ARE WORTH for this service!
    GA-HVAC-Tech

    Quality work at a fair price with excellent customer service!

    Romans Ch's 5-6-7-8

    2 Chronicles 7:14

  3. #29
    Join Date
    Feb 2011
    Location
    Peoria, IL
    Posts
    2,149
    Quote Originally Posted by ga-hvac-tech View Post
    Procedure if it were me (compressor is already out):
    *Blow out entire system with N2... be liberal... half a tank is not too much.
    *Flush with RX11
    *Blow out again, use up the rest of a tank of N2
    *Pipe in new compressor, LL dryer, and SL dryer.
    *Braze with N2 sweep and trickle.
    *Blow out again (just a couple hundred #'s
    *Do pressure test
    *When removing pressure test, use one of those quick-test acid testors (the one you hold on a schrader and blow through). It will turn pink if there is acid. I would hold it on there for around 10 seconds... regardless of what the instructions say.
    *If needed, add 'acid-Away'
    *Pull DEEP vacuum, expect to let the pump chug for an hour
    *If vacuum holds at/below 500 microns, break vacuum with refrigerant... GAS (liquid from drum, fed slowly through gauges, will be gas by the time it hits the system)... slowly until you have some pressure.
    *Charge until you can start the system without the scroll going into a vacuum... Scrolls going into a vacuum is death for a scroll.
    *Charge to proper level, then let it run for an hour or so, then check/fine tune charge
    *In a week, pump it down and remove SL dryer... do NOT un-sweat a filter (this tends to cause the filter to dump moisture--and whatever it is holding--into the system), N2 sweep and braze with N2 trickle
    *N2 purge, vacuum, dump charge, and top off to operating charge.
    *A week later check charge

    Get paid WHAT YOU ARE WORTH for this service!
    Thanks will do, And thanks for being descriptive in your reply!

  4. #30
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    21,405
    Quote Originally Posted by garychance View Post
    Thanks will do, And thanks for being descriptive in your reply!
    You are welcome!

    Every now and then, someone who WANTS to do a good job comes along... it does not take a degree in rocket science to see it.

    Glad to be of assistance...

    Now git to work... <grin>
    GA-HVAC-Tech

    Quality work at a fair price with excellent customer service!

    Romans Ch's 5-6-7-8

    2 Chronicles 7:14

  5. #31
    Join Date
    Feb 2011
    Location
    Peoria, IL
    Posts
    2,149
    Quote Originally Posted by ga-hvac-tech View Post
    You are welcome!

    Every now and then, someone who WANTS to do a good job comes along... it does not take a degree in rocket science to see it.

    Glad to be of assistance...

    Now git to work... <grin>
    Thanks Again!

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