Lutron Skylark. SFSQ?LF on 115v 50Hz

[JoeGons]

Lutron Skylark. SFSQ?LF
Hunter Original ceiling fan.
I have been using the Lutron Skylark fan control for years in a 115v 60Hz environment.
I am now in a 115v 50Hz environment and trying to use the same 115v 60Hz control.
It (the switch) does not seem to like this as the reduced speed positions produce too slow a speed. On LOW the fan is barely turning.
To compound the problem, the fan is a 60Hz fan.
I could use some advice on how to improve the situation.
I have not been able to find out the method that the Skylark uses to control the speed. (capacitors?)
I know the control switch is good because there two fans that do the same. Fans have been tested.
Apart from the obvious problems running a 60Hz motor on 50HZ, the transformers I have seen are too large to use. (115v to 98v)
The Hz converters are likewise too large.
So I'll just have to live with the risk.
Thanks
Joe

[Jai H.]

Hello JoeGons, The SFSQ-LF is only designed to work in 120V 60Hz applications. Using it in a 50Hz environment is out of spec and not UL approved.

You are correct, it is capacitors that control the speed of the fan. Using it on a 50Hz signal will increase the resistance provided by the caps, and in turn slow down the fan. Though we wouldn't expect it to be too drastic of a change.

[JoeGons]

Thanks Jai H.
The effect of higher resistance and 50HZ make the fan useless at the slow setting.
Could I use a 240V 50HZ control switch with the 120V 50HZ supply?
What would that do?

[JoeGons]

What I need is a slider control for the fan and an ON/OFF switch for the light.

[JoeGons]

If I put a 1.5uF or 2uF capacitor in parallel with the Lutron switch what will that do?
I recon that should increase the speed.


What am I missing here?


Any ideas about the sort of value capacitors in the Lutron switch?


I saw in one schematic (not Lutron) something that looked like a resistor in parallel with a capacitor.


Trouble is that I have no idea what I am talking about.
There seems to be so many different types of capacitors.


Ceramic Disc Capacitor


Metallized Poly-Film Capacitor 1.5uf 240V AC


Radial Film Capacitor


630V 1.5uF 5% Radial Lead Metallized Film Capacitors


Electrolytic Capacitors 1.5uF 250V


CBB61 AC450V 2uF Air Conditioner Electric Fan Run Start Capacitor


CBB61 AC450V 1.5uF Air Conditioner Electric Fan Run Start Capacitor

[Jai H.]

Hello JoeGons,

Unfortunately we do not have a fan control for that application. We also cannot recommend adding any capacitors in parallel with our controls. This could present a safety hazard.

In regards to the value of the caps in our controls, we are not able to share that information as it is proprietary information.