Search Results - HVAC-Talk: Heating, Air & Refrigeration Discussion

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Type: Posts; User: infojunky

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  1. Replies
    31
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    2,243

    Fans working and the basin is full - didnt say...

    Fans working and the basin is full - didnt say anything about the distribution pump - assuming its working too? What are the water temps on either side of the exchanger? All the heat pumps tripping...
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    4
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    520

    Thanks for confirming my hunch!

    Thanks for confirming my hunch!
  3. Replies
    4
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    520

    No liquid line service port

    Can you determine subcooling off a discharge line (and I'm 99% sure you cant)? Feel like its a newb question but I'm a little stumped. Working on a Trane voyager YCD makeup air unit and suposed to...
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    30
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    1,593

    Second on that grape jelly (515). Good stuff - I...

    Second on that grape jelly (515). Good stuff - I was taught to always use it to insure good tight seals on o-rings and gaskets and it helps tack gaskets in place on flat faces. Clean the faces...
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    35
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    3,651

    Slightly off topic but the digital scrolls i've...

    Slightly off topic but the digital scrolls i've come across all have an Emerson digital scroll controller running them. All the safeties, transducers, the unloader and contactor coil run through it....
  6. Could be off here - but liquid line should be...

    Could be off here - but liquid line should be (slightly) lower pressure. Condensed liquid has a lower temp which correlates to lower pressure. Difference in pressure changes with refrigerant and...
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    11
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    847

    I don't think that's the problem - you add...

    I don't think that's the problem - you add refrigerant when your low and it bring both suction and discharge pressures up. My suction is already too high.

    More info - the evaporated is making 16...
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    11
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    847

    Fixed orifice.

    Fixed orifice.
  9. Replies
    11
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    847

    Abused scroll with high suction

    5 ton split scroll with ~200 ft line set. Its not cooling - has 5 dt and guages read 93/250 on 104 afternoon. Get to looking at airflow and find the outside air damper open 100% and my return air...
  10. Replies
    11
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    1,116

    If the pulleys are already aligned - I take a...

    If the pulleys are already aligned - I take a triangular file and file a small mark on the shaft right in front of the bushing. Pull the bushing, change/replace sheave' then reassemble with.the...
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    7
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    1,031

    Full model - 48tcda04a1a5a0a0a0 And yes - I...

    Full model - 48tcda04a1a5a0a0a0

    And yes - I meant that assuming is dangerous. Sorry my autocorrect went nuts in the first post too.
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    7
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    1,031

    Carriers with different charges?

    Working on a small strip mall with 3 Carrier 48TCD pack units. Identical model numerals on the plates but the plates have different charges. One is 6lbs 2ozs and the other is 5lbs 6ozs. No visible...
  13. Replies
    19
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    1,933

    Last delay issue I went with delay on make. Small...

    Last delay issue I went with delay on make. Small 2T split for an elevator equip room that cycled faster than the TXV opens after shutdown. Unit is capable of dropping temp in a matter of ten minutes...
  14. Thread: Capacitors

    by infojunky
    Replies
    16
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    1,591

    I'm with 54 and mike85 - always if I put in a new...

    I'm with 54 and mike85 - always if I put in a new motor, its bulged or leaking. Never thought too much of rust but might be something there too. "Cheap insurance"
  15. Replies
    2
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    860

    Yet another newbie

    Great Info on here - been in the industry for a few years but was taught by part changers and gas'n'gos. Changed thing up, going through a program now (union sponsered) and learning how to do it...
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