[RFI] RFI from new Hi-efficiency furnace?

[k0occ at comcast.net]

I also  have a Carrier Infinity variable speed system for both furnace and A/C. No trace of interference on any band. 



73, Ernie, k0occ 


----- Original Message ----- 
From: "dalej" <dj2001x at comcast.net> 
To: "RFI List" <rfi at contesting.com> 
Sent: Wednesday, October 27, 2010 3:00:18 PM 
Subject: Re: [RFI] RFI from new Hi-efficiency furnace? 

We have a Carrier Infinity and it has the DC fan motor which runs at different speeds for A/C and for just circulation.  I have not experienced any noise from it.   

73 
Dale, k9vuj 



On 27, Oct 2010, at 11:41, Mel Crichton wrote: 

> Looking to replace old furnace with new 95% efficient unit. (Air conditioning won't be changed out as it works fine and no RFI) 
> 
> I plan to stay away fom variable speed drive on the primary fan to avoid traditional RFI from VSD untits, but most all units have ECM (electronic control module) on the smaller combustion air blower. Some even have DC motors. 
> 
> Any experience (good or bad) with these high efficiency furnace units? (RFI in or out?)  Looking at Carrier and brands made by Carrier  (Kenmore, Bryant) 
> 
> Mel KJ9C 
> 
> _______________________________________________ 
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> RFI at contesting.com 
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