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#1
03-14-2013, 07:49 AM
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fan controller question
I have a 6" ~600 CFM 115w inline fan I am using to vent my new fish room. I was wondering if I can use one of these to control the speed of my fan:
Dimmer switch Or will I have to use something like this: Speedster fan controller I would like to use the switch because it will look cleaner, I have an extra slot left in a 2 gang box I would like to fill, and it is slightly cheaper. I have no idea about electronic though, I was told by others it was a bad idea since AC motors do not like variable current. If that is the case then I would imagine the speedster fan controller would not work either. Last edited by FitoPharmer; 03-14-2013 at 07:54 AM. 
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#2
03-14-2013, 01:58 PM
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You can only change the speed of the fan if it the fan itself uses a multi-speed motor which is not likely for the type of fan you have. If it did it would either come with a speed controller or reference an optional one. The fan speed controllers you buy are designed to replace existing speed controllers for multi-speed motors. They are not for any old AC motor.
What you should use for control isn't a dimmer anyway but a humidistat that will turn the fan on or off based on the humidity level in the room. You can get ones that fit in standard gang boxes. Last edited by sphelps; 03-14-2013 at 02:06 PM.
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#3
03-14-2013, 06:25 PM
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I already have a dehumidistat wired up to control a socket for the fan. Now I just wanted a speed controller to help make the fan quieter. These fans are sold either with or without control kits, the speedster version. When I was looking up my problem on the internet one site suggested that the speedster unit may change the frequency of the voltage going into the fan to control the speed.
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