[RFI] Multi-Stage High Efficiency Air Conditioner Units

[James Jordan]

Can't be specific on HVAC units, but the Schaffer line filters, available
in various amperage ratings from Mouser can be inserted in the power
circuits. Mouser 631-FN2070[ampere rating]. I Use them on Pentair variable
speed pool pumps at VP5 and they killed very nasty RFI from those motors. I
would negotiate with an installer of higher quality units (Carrier, Trane)
(Avoid the cheap Goodman, Coleman, etc.) that if the unit creates RFI that
they will install appropriate line filters. We have a top end Carrier
variable speed multi-stage unit and I'm not getting any RFI, but my
hamshack is quite a ways from it in a detached garage bonus room so it's
still possible some is being generated.
Good luck.  The high efficiency definitely saves electricity.
73,
Jim K4QPL

On Thu, Feb 6, 2020 at 11:19 PM Kim Elmore <cw_de_n5op at sbcglobal.net> wrote:

> My wife has been interested in increasing the efficiency of our air
> conditioner units. It seems that the only path to better efficiency is
> multi-stage/multi-speed units. I recall a lot of talk about the horrific
> RF noise these things generate. Does anyone know of RF-silent units?
>
> Kim N5OP
>
> --
>
> Kim Elmore, Ph.D. (Adj. Assoc. Prof., OU School of Meteorology, CCM, PP
> SEL/MEL/Glider, N5OP, 2nd Class Radiotelegraph, GROL)
>
> /"A great second violinist plays second fiddle to no one." //– Robert C.
> Marsh, Chicago Sun-Times./
>
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
>