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Type: Posts; User: Wes G.

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  1. Replies
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    Sic First there was flow alarms. Trane asked...

    Sic

    First there was flow alarms. Trane asked us to re-wire so that the Trane chiller would control the pump. I ran conduit and wires, Trane came out and terminated the wires. I came back after a...
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    Art No I haven't looked at any refrigerant side...

    Art
    No I haven't looked at any refrigerant side stuff. Here is what I do know. When cir #1 runs it runs fine w/no alarms most of the time. But everyday or every other day we get a water flow...
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    R123 Jayguy asked "What is your exact...

    R123
    Jayguy asked "What is your exact diagnostic? there are lots of evaporator flow lost and overdue diagnostics. if it is 'Evaporator Water Flow Lost' then the definition is 'After the pump request...
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    Trane chiller controls the pump. No VFD.

    Trane chiller controls the pump.

    No VFD.
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    The one posted above is the diagnostic. No pump...

    The one posted above is the diagnostic. No pump pkg. Factory flow switch for proof. Trane replaced it already. One pump.

    "If your water pressure is good.you probally have a bad flow switch. has...
  6. The new coil, txv, and compressor are still...

    The new coil, txv, and compressor are still working well. Thanks again for all the help.

    There was no filter drier(to change out) in the system before. There is one in there now.

    After the...
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    Thanks I will check all that when I get back...

    Thanks

    I will check all that when I get back there.

    But I think all the flows are good.

    Wes
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    Hmmm I don't know. I will check it next time I...

    Hmmm I don't know. I will check it next time I go out.

    Thanks

    Wes
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    My first post, sorry if I didn't make it clear. ...

    My first post, sorry if I didn't make it clear.





    Both the Trane guy and I had this happen to us. Both times we reset the power and voila no more trips until later.
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    I believe it is wired correctly, but I will...

    I believe it is wired correctly, but I will double check it. I think it is wired OK because after a power reset everything runs fine. No alarm.

    Thanks

    Wes
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    ^^^Yes you have it right. The actual flow...

    ^^^Yes you have it right.

    The actual flow doesn't change. But the Trane controls "think" the flow changes, just after the #1 comp comes on.

    The VFD was working correctly for almost a year,...
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    Trane guy did the start up about a year ago. ...

    Trane guy did the start up about a year ago. Another Trane guy has been here twice. Last time he had his lap top plugged into the unit. Do you think they looked at the flow switch settings? I...
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    Yup strainers are clean.

    Yup strainers are clean.
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    No display on the drive. Power led is lit. ...

    No display on the drive. Power led is lit. Alarm led is not lit. 460/3/60 going in, nothing coming out. Condenser report reads 100% air flow. Condenser fan driven by VFD is free wheeling.
    ...
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    Loss of flow alarms on new trane chiller!?!?

    Daily nuisance trips. Anyone have this?

    M#CGAM 020F 0E02 AXD2 A1A1 B1AX ...

    I checked the flow. I checked the sensor, it's clean. I had it happen two times in a row when the first comp. came...
  16. New coil and TXV did the trick. Thanks again...

    New coil and TXV did the trick.


    Thanks again everybody.

    Wes
  17. "I'm guessing you didn't pull the piston?" No,...

    "I'm guessing you didn't pull the piston?" No, mine has/had a cap tube metering device.
  18. Just got in from this never ending proj. So I...

    Just got in from this never ending proj.

    So I pumped it down then back flushed the coil. I used quite a bit of pressure but no solvent/flush. No change.

    Spoke to Rheem/Ruud rep. and based on...
  19. Well as I posted, rotation is correct and blades...

    Well as I posted, rotation is correct and blades are clean, amps look correct. Thanks for that hvacrmedic.


    Wes
  20. B, thanks. 1/2" LL, & 7/8" SL. OEM fan motor. ...

    B, thanks. 1/2" LL, & 7/8" SL. OEM fan motor. Evap and Cond both 5 tons.

    How bad is that flush stuff? Should I remove the coil from the house? Seems like a bunch of work. I may try just back...
  21. Did not appear to have air bypassing the coil. ...

    Did not appear to have air bypassing the coil. But I was not looking for this especially. So tomorrow I will look again.

    Never ending

    Thanks

    Wes
  22. So I just got in. Great info posted, thanks...

    So I just got in. Great info posted, thanks everyone. Probably $10k in accumulated labor on this thread alone. lol.

    Here's what I did and what I found.

    .05 to .08"wc across the coil. Not...
  23. Old Bristol #H23A623ABCA New Copeland...

    Old Bristol #H23A623ABCA
    New Copeland #ZR61K3-PVF-930

    Great help everybody.

    I have never seen this before. While I don't know if the correct airflow is going through the coil I do know that...
  24. Two cap tubes, I think. I will check that out. ...

    Two cap tubes, I think. I will check that out.

    75/60 air split. 15 deg split.

    Thanks

    Wes
  25. Thanks everybody. I will check for air flow...

    Thanks everybody.

    I will check for air flow loss through coil with a mag.(didn't clean the evap, but looks new)
    Check fan blades for debris, spinning in the correct direction and the correct...
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