I am building a cooling tower for use with my wort heat exchanger. Here are a few photos mid-build.
That fan should have a low speed. Make sure you wire your hot to that tap and it should slow down substantially. I’m an HVAC contractor and can help you with the wiring if you haven’t figured the taps out yet.
I don’t think faster would fix his issues of water coming out the top. It definitely needs to be slowed down. As far as 2 speed blower motors, I haven’t seen one in a long time for a furnace if that is where it is from. The fan setting for AC uses the high speed(Black like stated) and the Heating speed is usually on medium speed and the motor usually has a low speed that is “parked” on the board.fwiw I have a couple of big blowers like that and they're both two speed.
On mine the black wires are for the high speed winding while the low speeds use red wires.
Running both windings doesn't make them go any faster...
Cheers!
The EF I built is a HVAC blower. It has 4 speeds/wires. I used a 3 gang box with a single pole switch and 2 double pole switches. The single pole is low/off, the next double pole is med and the last double pole is high. I don't use the med-high wire. There are some youtube vids on dust collection blowers to show the wiring diagram. Much cheaper than 3 or 4 speed switches and I had all the parts laying around.
[...]also don't forget to have a form of make up water (a hose or what not) you'll be impressed how much water can evaporate sometimes
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