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  1. Replies
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    All things considered, yes, I'm happy with them. ...

    All things considered, yes, I'm happy with them. In fact I'd say I'm more happy with their post-install service than I was with the initial install. The issue with the initial install is that I was...
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    How hot/cold should those lines feel?

    So, I have a new heat pump (Trane 4TWX6048B1000B) just installed this past winter. It seems to be working fine in cooling mode, now that it's summer. So, I don't have a problem that needs solving...
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    In heating mode, my stat is set to humidify using...

    In heating mode, my stat is set to humidify using my Trane 500 humidifier. I suspect you aren't asking about that, so..

    In cooling mode, my stat is set to the "dehumidify using A/C" setting (I...
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    [QUOTE=Skip 2 my lou;1882886] Very...

    Very interesting! The installer definitely did not use a twisted pair ("homemade" or otherwise) in my install. What kind of bad effects do you observe if you don't twist it? I could understand...
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    There is a main return about 3-5 feet to the left...

    There is a main return about 3-5 feet to the left of the stat... it certainly could (and probably is) leaking air into the space. Still, I'm pretty sure I've blocked all direct airflow out of the...
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    I'll doublecheck, but I don't believe any...

    I'll doublecheck, but I don't believe any ductwork is behind my wall. Also, it's summertime now, but my IAQ stat is reading *higher* temperatures than the two reference sensors (which are within 6...
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    Thanks to all who replied. iraqveteran,...

    Thanks to all who replied.

    iraqveteran, catmanacman: The stat is near the corner of two inside wires, not exposed to sunlight or directly in the path of a vent. Last winter I sealed the opening...
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    Continuing issues with Vision Pro IAQ

    Some time ago I started a thread about issues I was having with my new Honeywell Vision Pro IAQ thermostat. At the time, the issue was with humidity sensing accuracy and smoothness when in humidify...
  9. Thanks for the suggestion, everyone. The hole is...

    Thanks for the suggestion, everyone. The hole is just big enough for the wire, and actually drilled through a stud (for quite a distance). It is not caulked or sealed in any way. I'm going to...
  10. Update -- Even Stranger!

    Here's an update on where I stand with this problem. I really hope somebody can help me, perhaps someone with a good contact at Honeywell.

    The guy who owns my HVAC company called Honeywell's...
  11. Hmm. When they use a statement like "Can cause...

    Hmm. When they use a statement like "Can cause erratic system operation", I guess anything goes. Let me describe how they ran the wiring, and perhaps you can tell me if it sounds OK to you.
    ...
  12. #370 is set to 1. #372 is set to 3. My sensor...

    #370 is set to 1. #372 is set to 3.

    My sensor wire is separate (not the same cable) as the other outdoor control wires, though it does run parallel and right next to it. I seriously question if...
  13. Major problem with humidity sensing in VP IAQ stat

    I recently had a dual-fuel system installed with a Honeywell Vision Pro IAQ thermostat. Almost everything about the system is working great, but I've been observing some problems with humidity...
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    I think the OP is just trying to find out if he...

    I think the OP is just trying to find out if he has a problem that warrants calling back his installer.
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    I don't see a white wire on Y... I do see one on...

    I don't see a white wire on Y... I do see one on common. I reeeeealy hope that isn't a white jumper between common and W1.... If it is, then as soon as your HP goes into defrost............
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    I'm very interested in this statement, since the...

    I'm very interested in this statement, since the *same* contractor was suggesting I might want to install one...

    I'm guessing you're talking about the angled sheetmetal on the right side of his...
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    I'm not a pro (as you know), but I wonder about...

    I'm not a pro (as you know), but I wonder about the two wires going to W1. It would make sense for one of them to go out to your heat pump, so it can force aux heat on during defrost. Can you...
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    Huh. This is a brand-new pump. I guess I'll...

    Huh. This is a brand-new pump. I guess I'll call the contractor about it. Thanks!
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    Should a check valve stop all backflow?

    I've noticed some behavior from my new system that surprises me. On the ground next to my new furnace is a condensate pump that receives water from coil, furnace, and humidifier. Right now the...
  20. I see. Rather than shutting off the whole...

    I see. Rather than shutting off the whole system, just shut off the heat pump (and the humidifier, since that produces the most water). Then you only have to worry about condensate from the furnace...
  21. Condensate question

    While we're looking at pictures, you may notice that two wires from the condensate pump that are intended to interrupt operation if the pump fails are not connected.

    He told me he'd wire it up...
  22. Yes. I'm assuming you mean aesthetically. ...

    Yes.



    I'm assuming you mean aesthetically. Functionally, his purpose was to reduce vibration, and it seems to do that pretty well.

    What do people typically use instead of foil tape? Mastic?
  23. Never mind, photobucket is simple. Here are some...

    Never mind, photobucket is simple. Here are some pictures. I didn't take any outside 'cause it's very cold and windy right now.

    http://i228.photobucket.com/albums/ee31/dbb1/PC033745.jpg...
  24. I'll take some and try to figure out how to post...

    I'll take some and try to figure out how to post 'em. Any quick pointers?
  25. The difference, perhaps, is that I'm only...

    The difference, perhaps, is that I'm only proposing 50% during calls for dehumidification. It would normally run at 80%. Still, point noted :)



    I agree, I wouldn't dream of asking my...
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