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    Thanks for the info! We'll give it a try.

    Thanks for the info! We'll give it a try.
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    Help! How set VisionPro IAQ changeover?

    Okay, how do I select the temp for changeover from heat pump to gas furnace with the IAQ stat? It seems to be set at for 35 outside temp...how do I change it to, say, 30? (Single speed condensor...
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    Craig, I forgot to add the second part of my...

    Craig, I forgot to add the second part of my question. Do you mean you leave the fan on continuous low-speed circulate? I have a Honeywell IAQ thermostat.
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    Hooray! That's pretty encouraging...thanks...

    Hooray! That's pretty encouraging...thanks Craig. I'm not where I can look at the unit right now; is the Aprilaire fan control that you mention part of the 600 kit or is it something that has to be...
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    So Baldie, you'd say it's worth having it? ...

    So Baldie, you'd say it's worth having it? You're certainly right...humidity isn't a concern in milder weather, and we do have a good number of days/nights each year when the gas heat will be...
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    Humidifier frustrations...Aprilaire 600

    Will the 600 humidify effectively if mounted on the supply side of a heat pump system? (actually dual-fuel...80% 2-stage VS furnace, 16 seer 3-ton condensor)

    Aprilaire guy says no...not without...
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    Resurrecting this thread...my dealer says it's...

    Resurrecting this thread...my dealer says it's okay to install an Aprilaire 600 humidifier on the return side (not enough room on the supply) of my heat pump system (dual fuel -- VS 80% furnace...
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    Resurrecting this thread...my dealer says it's...

    Resurrecting this thread...my dealer says it's okay to install an Aprilaire 600 humidifier on the return side (not enough room on the supply) of my heat pump system (dual fuel -- VS 80% furnace...
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    Thanks Mayguy. We have a semi-sun room that was...

    Thanks Mayguy. We have a semi-sun room that was added on, and temps in that room sometimes lag the rest of the house. Was thinking a remote sensor there might come in handy...but I'm not sure you...
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    okay w/ R22?

    Well, check out these three systems in the ARI ratings at http://www.aridirectory.org/ari/hp.php. Just plug in the reference number.

    1031663
    1031645
    1347177

    All three are 3 ton 14 seer...
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    IAQ stat sensors - different??

    Honeywell offers optional outdoor and indoor remote sensors to go w/ the IAQ. My guy locally only has the outdoor ones on hand. Wouldn't they function the same way basically and sense temperature? ...
  12. dehumidification...

    BL, are these sensible ratios for A/S-Trane or another brand? Do you happen to have them for Amana ASZ14 vs ASZ16? ( paired w/ 70K GMV 80% VS furnace)
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    sensible?

    Is this a case where a 13 seer system beats a 14?
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    yes but....!

    Thanks Mark, that helps a lot. But putting that in practical terms, if cost/installer/looks/warranty/reliability etc were all identical (I know that's never the case!) wouldn't the Nordyne be the...
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    ARI data...I don't get it...

    Okay, check out these two ARI ratings:

    1 - ARI ref# 924851 - 13.00 EER, 15.00 SEER, 9.0 HSPF, High htg 35K
    2 - ARI ref# 1093286 - 13.00 EER, 15.00 SEER, 9.15 HSPF, High htg 38K

    Both are 3 ton...
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    Sorry, just to clarify, in the post above I'm...

    Sorry, just to clarify, in the post above I'm talking about a single stage heat pump w/ a VS 2-stage furnace.
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    is this really true?

    That seems logical, but what if the stat has an outdoor sensor? Don't you only get those w/ something like the IAQ or really high end stuff? This from another post:

    Q: "Do any manufacturers of...
  18. So BL do you think the actual figure is higher? ...

    So BL do you think the actual figure is higher? For the Amana units I've looked at charts show 21,000 at 17 degrees.
  19. The ARI ref# for 3 ton is 1093286. Good specs...

    The ARI ref# for 3 ton is 1093286.

    Good specs overall...but that heat pump sure doesn't "pump" much in low outside temps...only 10,000btu at 17 degrees?? (isn't that what that figure means?)
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    Do any other brands do that?

    Do any other brands do that?
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    Wow...heck of a deal!

    Wow...heck of a deal!
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    Nordyne warranty transferable??

    Is this true?? (the part about it being transferable, I mean...) :confused:
  23. Are the ARI numbers for this configuration...

    Are the ARI numbers for this configuration published somewhere?
  24. hi-eff Nordyne setup

    Here's the whole story:

    http://hvac-talk.com/vbb/showthread.php?t=138830
  25. ?? :confused: I don't think that's right.

    ?? :confused:

    I don't think that's right.
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