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  1. Replies
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    Thanks to all of you who responded. Dave

    Thanks to all of you who responded.

    Dave
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    Thanks to the 3 of you who responded so quickly....

    Thanks to the 3 of you who responded so quickly.

    Gib's Son: The ducts seem to be secure to the can. I would like to insulate and just add more insulation over the box if that won't introduce a...
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    Box at Start of Attic Flex Run

    We live in SW Ohio in a 5 year old ranch that wife and I moved to last Oct. Off and on through the cold weather last winter I noticed 2 bedrooms had cold air "falling" from the ceiling grates when...
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    Genteq, following the dealer tightening of the...

    Genteq, following the dealer tightening of the blower/motor assembly, I sent you an e-mail on March 30th to the address you provided. If you have any other suggestions for what might be done next,...
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    Thank you, Genteq. I will get with the dealer...

    Thank you, Genteq. I will get with the dealer and see if the tightening (assuming something is loose) takes care of the thunder problem.

    As far as not needing to dismount the blower and...
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    Well, I guess I agree that it makes sense that...

    Well, I guess I agree that it makes sense that the vibration would transmit to the base, but what is the message here? Is there something that can mitigate the base vibration so that the noise does...
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    Genteq, Unless you or someone else has...

    Genteq,

    Unless you or someone else has another suggestion, it appears the only avenue left for me to pursue to deal with the startup "thunder" is having the dealer check everything for...
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    Well, I'm not in a position to fund a redesign of...

    Well, I'm not in a position to fund a redesign of the ECM 2.3, but you bring up some interesting points, and I will presume you are confining your answer, above, to the area of my initial question...
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    The furnace does not touch the walls. The...

    The furnace does not touch the walls. The rumble/thunder sound, when I happen to be in the garage when it occurs, seems to come from the furance cabinet--and I can feel it vibrate--next to where the...
  10. Replies
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    The furnace is in the garage and transmitts the...

    The furnace is in the garage and transmitts the sound though the wall to the kitchen, dining room, and living room--all of which border the garage. When it really "acts up" we can easily hear it...
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    Beenthere, My return plenum goes straight...

    Beenthere,

    My return plenum goes straight above the furnace to the attic where the connected flex returns are spread out to various places in the attic, the shortest of which is more than 10 feet....
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    And has the solution to those noises been to...

    And has the solution to those noises been to tighten everything down as Genteq suggested? "The issues that we typically see with a noisy start is related to the mounting system. So the thing to...
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    You seem to be suggesting that Luxaire (and,...

    You seem to be suggesting that Luxaire (and, presumably) York, Coleman, etc. have an inadequately constructed mounting system that is the source of the problem that I (and, perhaps Jerryd_2008) are...
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    Thanks, Genteq So would it be too difficult,...

    Thanks, Genteq

    So would it be too difficult, expensive, etc. to install sensors so that the rocking did not have to occur and the motor could start in the right direction without the "commotion"...
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    Genteq, I don't know for sure just what motor...

    Genteq,

    I don't know for sure just what motor it is, but it is what came from the factory and is part of the original installation. The model number of the furnace is (Z)FL9C060B12DH11A per the...
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    Genteq, I have a Luxaire modulating furnace...

    Genteq,

    I have a Luxaire modulating furnace installed in 2007 with, presumably, a GE ECM. One of the things I don't understand about these motors is the way they start up. It is common for mine...
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    OK, Thanks, Dave

    OK, Thanks,
    Dave
  18. Replies
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    Beenthere, would both first and second stages in...

    Beenthere, would both first and second stages in cooling be set the same, i.e., 4 CPH?
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    Beenthere, I am having some difficulty...

    Beenthere, I am having some difficulty convincing the dealer that increasing the CPH on the cooling to 4 would be OK (at least to try) and not cause problems. He is especially reluctant because of...
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    Would the Honeywell work better because of being...

    Would the Honeywell work better because of being able to set the CPH? Is there another benefit to the Honeywell?

    The dealer had about a year ago switched out the Luxaire stat (which was required...
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    Beenthere, my stat is a Luxaire model 4DP22U70124...

    Beenthere, my stat is a Luxaire model 4DP22U70124 which, as far as I can tell, does not have a provision for setting Cycles Per Hour. In Step 6 of the Installer/Configuration Menu, it is set for a...
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    I found that by plugging the hole in the wall...

    I found that by plugging the hole in the wall behind the thermostat (where the wires come through) with rope caulk the thermostat immediately made the furnace not go into a high fire scenario--even...
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    My mod is a 2007 vintage and is rated 95% AFUE. ...

    My mod is a 2007 vintage and is rated 95% AFUE. So my numbers would be a little different from what you posted, I presume.

    There are some noises at low CFM's but I've pretty well gotten used to...
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    Well, I am getting mechanical noise. I described...

    Well, I am getting mechanical noise. I described it in Post 20 as roar, howl, whine, and whistle, but some of it is definitely just furnace noises. The intent of putting in the flex was to handle...
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    Unfortunately, I believe the supply plenum for...

    Unfortunately, I believe the supply plenum for this down flow furnace at 10x14 is smaller than the furnace opening. I can't tell from the installation manual what that opening is, but the coil...
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