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Re: [RFI] Ruud Furnaces and AC units

To: rfi@contesting.com
Subject: Re: [RFI] Ruud Furnaces and AC units
From: Steve Dyer W1SRD via RFI <rfi@contesting.com>
Reply-to: Steve Dyer W1SRD <w1srd@yahoo.com>
Date: Sun, 6 Jul 2025 14:25:08 -0700
List-post: <mailto:rfi@contesting.com>
Electronically Commutated Motor
Poorly designed = bad
Well designed = good
My 13 year old Bryant has 2 ECM motors that are quiet as a mouse.
73,
W1SRD

On 7/6/2025 12:51 PM, Jim Brown wrote:
What's an ECM fan?  If it's variable speed, it's almost certain to be noisy.

73, Jim K9YC

On 7/6/2025 8:54 AM, Dan K2YWE wrote:
Is there any group knowkedge with respect to RFI from Ruud oil furnaces and
AC units that have ECM fans?


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