| From what I saw when we replaced our heat pump system couple years ago the 
variable speed controller systems had a higher SEER rating than the standard 
controller systems. 
Folks trying to save $$ on heating/cooling costs coupled with possible rebates 
for higher SEER systems encourages installations with variable speed controller 
I suspect.
We stayed with a standard (RF quiet) controller.
73 Phil NA4M
> On Jul 2, 2018, at 11:53 AM, Jim Brown <jim@audiosystemsgroup.com> wrote:
> 
> Why use variable speed controller at all?  Most systems that use motor 
> controllers have 2-speed controllers as "standard equipment" and offer 
> variable speed as an upgrade.  I suggest that you try to avoid variable speed.
> 
> 73, Jim K9YC
> 
> On 7/1/2018 11:25 AM, James Jordan wrote:
>> Other comments or suggestions?
> 
> 
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-. .- ….- --
Phil Duff          na4m[at]suddenlink[dot]net
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