The operators could then take to litigation the mfg's of said device or
appliance that caused harmful interference?
Dale, K9VUJ
On 28, Jan 2016, at 15:04, "Hare, Ed W1RFI" <w1rfi@arrl.org> wrote:
Yes, I think that is known, but it never hurts to make that clear.
So, if my home furnace interferes with my ham station, does my wife get the
fine? She and I are both operators of the offending device.
Ed
From: Don Kirk [mailto:wd8dsb@gmail.com]
Sent: Thursday, January 28, 2016 4:03 PM
To: Hare, Ed W1RFI
Cc: rfi@contesting.com
Subject: Re: [RFI] Blower noise from Carrier Furnace
Hi Ed,
I think we need to be clear that even though those devices are exempt from
specific emissions limits, per section 15.103 "The operator of the exempted
device shall be required to stop operating the device upon a finding by the
Commission or its representative that the device is causing harmful
interference."
73,
Don (wd8dsb)
On Thu, Jan 28, 2016 at 2:34 PM, Hare, Ed W1RFI
<w1rfi@arrl.org<mailto:w1rfi@arrl.org>> wrote:
It may have been said already, but all pulse-width-controlled motors used in
furnaces are compliant with the FCC rules if they have even a modest amount of
filtering. A furnace is an appliance, as defined in Part 15, so it is a
device that is categorically exempt from specific emissions limits. Adding
that provision to a contract could actually make it less likely that the
manufacturer will cooperate. If he figures out that he is exempt, he can say
that he has met that provision in the contract.
It would be better to negotiate a contract that requires that interference to
radio devices be addressed.
73, Ed Hare, W1RFI
ARRL Laboratory Manager
225 Main St.
Newington, CT 06111
Tel: (860) 594-0318<tel:%28860%29%20594-0318>
Fax: (860) 594-0259<tel:%28860%29%20594-0259>
Email: W1RFI@arrl.org<mailto:W1RFI@arrl.org>
Member: IEEE Connecticut Section
Member: IEEE EMC Society, Board of Directors
Member: IEEE EMC Society Standards Development and Education Committee
Member: University of Hartford Industry Advisory Committee
Primary representative: ANSI ASC C63 EMC Committee, Vice Chair Subcommittee 5
(Immunity)
Member: QRP Amateur Radio Club International, Board of Directors
-----Original Message-----
From: RFI
[mailto:rfi-bounces@contesting.com<mailto:rfi-bounces@contesting.com>] On
Behalf Of Dave Cole
Sent: Thursday, January 28, 2016 11:15 AM
To: rfi@contesting.com<mailto:rfi@contesting.com>
Subject: Re: [RFI] Blower noise from Carrier Furnace
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:
http://www.nk7z.net
For MixW support see:
https://groups.yahoo.com/neo/groups/mixw/info
For SSTV help see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info
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@contesting.com<mailto:rfi-bounces@contesting.com>] On
>> Behalf Of Jim
>> Netwal via RFI
>> Sent: Wednesday, January 27, 2016 2:55 PM
>> To: rfi@contesting.com<mailto:rfi@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<http://www.w9uum.com>
>> _______________________________________________
>> RFI mailing list
>> RFI@contesting.com<mailto:RFI@contesting.com>
>> http://lists.contesting.com/mailman/listinfo/rfi
>>
>> _______________________________________________
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>> RFI@contesting.com<mailto:RFI@contesting.com>
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>
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