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

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  1. Replies
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    645

    Sounds like a high latent load. Measure the...

    Sounds like a high latent load. Measure the humidity entering the evap coil.
  2. rundawg doesn't post links in the open forums. So...

    rundawg doesn't post links in the open forums. So I removed it from your post.
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    176

    Cool it down.

    Cool it down.
  4. All of the R22 qill come out when they vacuum the...

    All of the R22 qill come out when they vacuum the system.

    Many companies/techs don't realize that a small amount of mineral oil mixing with POE oil is fine, and no problem at all.
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    645

    So this is in a high humidity building?

    So this is in a high humidity building?
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    [QUOTE=udarrell;18706661] They factory charge...

    They factory charge them. And a fair amount of the charge is in the compressor itself. But when you try to use the compressor to pump a micro channel condenser down. The head pressure rises too high.
  7. He's talking about a fan coil with hot and...

    He's talking about a fan coil with hot and chilled water coils.
  8. Replies
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    822

    No, a micro channel won't hold the charge. You...

    No, a micro channel won't hold the charge. You can't even pump the factory charge back into them.
  9. A high HSPF does not always mean a lower heating...

    A high HSPF does not always mean a lower heating bill. Some units have a high HSPF, but the heat pump's heat output at lower temps is not as much as some units with a lower HSPF.
  10. On the hottest day. if you gt your house down to...

    On the hottest day. if you gt your house down to set temp of say 75. And then shut it off and time how long it takes to get to 85. While you may know how long it took. You won't know how many BTUs it...
  11. Sorry, we don't talk price here.

    Sorry, we don't talk price here.
  12. Replies
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    645

    The vapor pressure will vary with the indoor and...

    The vapor pressure will vary with the indoor and outside ambient conditions.
  13. Replies
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    262

    First, get rid of the back flow preventers.

    First, get rid of the back flow preventers.
  14. Replies
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    645

    What he asked.

    What he asked.
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    127

    2-5s won't give you as much air as 1-7". 1-7"...

    2-5s won't give you as much air as 1-7".

    1-7" will have a surface area of 1.83 sq ft per linear foot. 2-5" will have a surface area of 2.61 sq ft per linear foot. A lot more resistance to air flow.
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    MERV 18? What size is your A/C.

    MERV 18?

    What size is your A/C.
  17. Replies
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    But it still makes you a DIYer. And this is not a...

    But it still makes you a DIYer. And this is not a DIY site.
  18. Thats a bad match up for removing moisture. ...

    Thats a bad match up for removing moisture.


    Setting the blower to low is about all that can be done with that match up.
  19. Replies
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    822

    Its over charged. Good chance someone in the past...

    Its over charged. Good chance someone in the past added refrigerant to compensate for either a restricting LLFD, or the TXV's powerhead losing some of its charge. Test TXV, and replace LLFD if TXV...
  20. Do a internet search 36"X15" PTACs. You'll find a...

    Do a internet search 36"X15" PTACs. You'll find a couple different manufacturers.
  21. Replies
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    274

    What about the indoor check valve.

    What about the indoor check valve.
  22. Replies
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    1,377

    Approach is charging by the liquid line temp...

    Approach is charging by the liquid line temp "approaching" outdoor temp. Not just charging by having your saturation temp 25, or 30 above outdoor temp.
  23. Well, if your replacing the indoor coil and the...

    Well, if your replacing the indoor coil and the outdoor unit. Your installing a new system. Which isn't allowed to be charged with virgin R22. Only reclaimed/recycled R22. So hope you aren't...
  24. Thread: Unico system

    by beenthere
    Replies
    8
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    307

    Please put your email address in your profile,...

    Please put your email address in your profile, they are not allowed in post, thank you.
  25. Merged threads.

    Merged threads.
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