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  1. Replies
    17
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    265

    I think it will be fine as long as he purged it....

    I think it will be fine as long as he purged it. I always pull a vacuum but, how many units in the old day were purged and ran for 20 years?

    Just go back and pull a vacuum. Or at least check...
  2. Should have checked pressure difference across...

    Should have checked pressure difference across it. Theyre usually installed for burnouts. They make them that small for heatpumps, so you can fit them in at compressor.

    I personally installed them...
  3. Replies
    20
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    482

    A microchannel cannot hold more then its factory...

    A microchannel cannot hold more then its factory charge. There is no volume in the condenser unlike a tube and fin condenser.

    It is possible to blow a microchannel apart trying to pump it down. ...
  4. Its a balancing valve. You use a pressure gauge...

    Its a balancing valve. You use a pressure gauge to measure delta p at valve. You then use the chart provided with the valve which tells you the gpm at that certain delta p.

    Sent from my SM-N900V...
  5. Replies
    27
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    769

    Thanks for update Sent from my SM-N900V using...

    Thanks for update

    Sent from my SM-N900V using Tapatalk
  6. Replies
    16
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    643

    Looks good Sent from my SM-N900V using Tapatalk

    Looks good

    Sent from my SM-N900V using Tapatalk
  7. Replies
    26
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    691

    They show how a burner is operating. Also can be...

    They show how a burner is operating. Also can be used to tell if a appliance is venting properly, over fired, underfired, clogged hx, if an appliance is going to kill someone, etc....

    Sent from my...
  8. If externally equalized, make sure the equalizer...

    If externally equalized, make sure the equalizer tube is clear. A clogged tube will shutdown txv

    Sent from my SM-N900V using Tapatalk
  9. Sounds like u found what killed the compressor....

    Sounds like u found what killed the compressor. Id say your indoor txv is bad

    Sent from my SM-N900V using Tapatalk
  10. Replies
    30
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    1,247

    http://hvac-talk.com/vbb/showthread.php?t=829282...

    http://hvac-talk.com/vbb/showthread.php?t=829282

    Read that thread on filter driers.

    Sent from my SM-N900V using Tapatalk
  11. Replies
    6
    Views
    379

    You can do the screw driver trick or take cap...

    You can do the screw driver trick or take cap tube off and hook to nitrogen bottle at 300psi. It should open wide. It wouldnt be the first time one of those has gone bad. I think your diagnosis is...
  12. Replies
    19
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    545

    The general rule is: Safeties have no shraders...

    The general rule is:

    Safeties have no shraders
    Controls have shraders

    Adding a shrader to the HPS is against some kind of code i believe.

    Have i done it?....

    Sent from my SM-N900V using...
  13. Replies
    30
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    1,247

    Yup....1st guy thought it was low. So he added...

    Yup....1st guy thought it was low. So he added some gas. It restricted a little more. Second guy comes and adds some gas.....

    Are you sure it was TXV and not the drier?

    Sent from my SM-N900V...
  14. Replies
    7
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    222

    Should be the same, if not lower. I could be...

    Should be the same, if not lower. I could be wrong though

    Sent from my SM-N900V using Tapatalk
  15. The tee is installed wrong. Should sweep up ...

    The tee is installed wrong. Should sweep up

    Sent from my SM-N900V using Tapatalk
  16. Just looked at the manual. I dont see anything...

    Just looked at the manual. I dont see anything about adding that tee and drain.

    Sent from my SM-N900V using Tapatalk
  17. Looks good. I think your vent tee is the wrong...

    Looks good. I think your vent tee is the wrong way. Cant say for sure because i dont have manual.

    Sent from my SM-N900V using Tapatalk
  18. Replies
    27
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    769

    A pumpdown test should goto 0psi and hold. You...

    A pumpdown test should goto 0psi and hold. You can go further in a vacuum but, i dont prefer it.

    If relief valve was open, you would most likely have equal pressures.

    Bad valves will cause...
  19. Replies
    27
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    769

    Can we erase posts? ^^^^ Sent from my SM-N900V...

    Can we erase posts? ^^^^

    Sent from my SM-N900V using Tapatalk
  20. Replies
    14
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    603

    Looks like an old lee temp receiver. Sort of how...

    Looks like an old lee temp receiver. Sort of how lieberts do. Its just missing the head pressure control valve.

    Lookup "lee temp receiver"

    Sent from my SM-N900V using Tapatalk
  21. Replies
    17
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    519

    That's good to know. Thanks. All the lieberts...

    That's good to know. Thanks.

    All the lieberts I work on cycle at 15 sec intervals.

    Haven't had too many complaints and haven't seen a problem running unloaded


    Sent from my iPhone using...
  22. Replies
    11
    Views
    330

    Did you personally replace it and check ops...

    Did you personally replace it and check ops after?


    Sent from my iPhone using Tapatalk
  23. Replies
    8
    Views
    503

    Try installing a expansion tank in the...

    Try installing a expansion tank in the loop....should fix your problem

    Sent from my SM-N900V using Tapatalk
  24. Replies
    17
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    519

    Where did 20 secs come from? Its 15 sec...

    Where did 20 secs come from? Its 15 sec intervals, unless copeland has changed on me.

    You cannot change the timing. It runs on 15 sec intervals of either loaded or unloaded.

    7.5 sec loaded and...
  25. Replies
    27
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    769

    All your numbers are equal to bad valves. Just...

    All your numbers are equal to bad valves. Just need amp draw info

    Sent from my SM-N900V using Tapatalk
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