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Re: [RFI] RFI from Inverter Technology in Split AC Systems?

To: "RFI List" <rfi@contesting.com>
Subject: Re: [RFI] RFI from Inverter Technology in Split AC Systems?
From: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Wed, 17 Feb 2010 09:46:45 -0800
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
On Wed, 17 Feb 2010 12:01:31 -0500, kd4e wrote:

>We are looking at the Sanyo Flexi-Multi Series CMH3172
>30,600 BTU Multi-System Heat Pump Ductless Split Outdoor 
>Unit with DC Inverter, Microprocessor Control and Auto Fan 
>Speeds.

>http://www.ajmadison.com/cgi-bin/ajmadison/CMH3172.html

>It seems efficient, will handle our somewhat unique layout,
>and is low-profile.

>I am concerned about the "inverter technology" as I worry
>it may generate a *lot* of RFI.  Is that a reasonable
>concern?

You should be GREATLY concerned about the variable speed motors that are 
probably used in the system -- variable-speed drive motor controllers are 
NOTORIOUSLY NASTY RFI GENERATORS! 

73,

Jim K9YC


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