[RFI] Blower noise from Carrier Furnace

[Hisashi T Fujinaka]

I'm not a lawyer, but part 15.103(d) appears to exempt furnaces.

On Thu, 28 Jan 2016, Dave Cole wrote:

> If possible, when you replace your HVAC system, have the company doing
> the install write into the contract both you and they sign, that the
> new device will not generate RFI, and will be FCC part 15 compliant,
> else it goes back, and the old system gets put back in place at no
> charge to you. 
>
> That forces them to do the homework and call the manufacturer.  This
> also puts the RFI issue right out on the table to start with, and
> brings up the issue of RFI to the manufacturer.  This also lets the
> manufacturer know that RFI is an issue , and can cost them sales. 
>
> When I changed furnaces I did this...  I also had no issues with RFI
> when the install was finished.  I asked the installers, to please do
> their homework and call the vendor to insure there would not be an RFI
> issue, prior to install in order to avoid ugly issues later. 
>
> All went well, and they installed an RFI kit on a Coleman furnace at
> the time of install...  Not a peep from it. 
>
> I also elected to avoid the PW controlled fan as well... 
>
> All discussion were very nice, and very friendly, but in no uncertain
> terms, no RFI would be tolerated, it would be a show-stopper.
>
> -- 
> 73's, and thanks,
> Dave
>
> For software/hardware reviews see:
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>
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>
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>
>
>
> On Thu, 2016-01-28 at 07:41 -0800, Gary Smith via RFI wrote:
>> Thanks for this very valuable info. Our hvac system is near
>> replacement 
>> time, good to know that Trane corp knows (and apparently,
>> understands) 
>> about and can do something about RFI from their hvac system.
>> 
>> Gary...wa6fgi
>> 
>> 
>> 
>> On 1/27/2016 7:41 PM, Tim Duffy wrote:
>> > Hello Jim:
>> > 
>> > I had a new HVAC system installed last year - It is the American
>> > Standard
>> > brand. I had bad RFI on 20 meters.
>> > 
>> > I found this document:
>> > 
>> > http://www.crompton.com/hamradio/Trane%20XV95%20RFI%20Documentation
>> > .pdf
>> > 
>> > It gave me all the info I needed to give to the HVAC installers to
>> > fix my
>> > RFI. Now my HVAC system is RFI noise free.
>> > 
>> > Hope this document (lots of links) or something else you can Google
>> > will
>> > help you solve your problem.
>> > 
>> > 73,
>> > Tim K3LR
>> > 
>> > -----Original Message-----
>> > From: RFI [mailto:rfi-bounces at contesting.com] On Behalf Of Jim
>> > Netwal via
>> > RFI
>> > Sent: Wednesday, January 27, 2016 2:55 PM
>> > To: rfi at contesting.com
>> > Subject: [RFI] Blower noise from Carrier Furnace
>> > 
>> > Last August I replaced my dead furnace with a new Carrier Model
>> > 59TP6A060
>> > variable speed, 2-stage furnace.  Right away I noticed that I had
>> > loud
>> > blower motor noise ever 18 kHz on most bands but it was the loudest
>> > on 17
>> > meters.  Does anyone have any advice or a fix for this?  Thank you
>> > in
>> > advance!
>> > 
>> > 73, Jim W9UUM
>> > www.w9uum.com
>> > _______________________________________________
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>> > RFI at contesting.com
>> > http://lists.contesting.com/mailman/listinfo/rfi
>> > 
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-- 
Hisashi T Fujinaka - htodd at twofifty.com
BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee