Vortex II Vent Fan Reliability Improvement
I recently replaced my Vortex single-speed vent fan with the Vortex II multi-speed reversible fan. While installing the fan, I accidentally dropped the fan on to a soft bed. I was surprised to find ...
Forum Discussion
Blacklane wrote:
I have to say I love this idea. I had not considered PWM controllers since I had no idea they were so cheap.
It looks like Lynnmor's set-up has a power switch, a reversing switch, and a speed potentiometer. However, it looks like the PWM gets power all the time. I think I'll switch power to the PWM since they draw a few hundredths of an amp in standby. I think I can perform the power and reversing functions using the same switch if I use a 3-pole, double-throw, center-off switch.
I'm also thinking of replacing my range hood exhaust fan with a more efficient computer fan plus a PWM controller to achieve higher performance with lower noise.
I used the original on-off switch as a master that kills all power. That way there is no need to fiddle with speed or direction until I want to change it. In addition I have a master wall switch to accommodate my last short wife.
