Electric fan

Here's a good link for wiring with relays.
http://www.s-seriesforum.com/how-to-efan.html
You can search Taurus fan wiring and find a bunch of info. Mine worked OK with relays per the instructions on the above link..... it's just a BUNCH better with the Delta Controller. So if you can get him to sell one I recommend it. It's well worth a few extra bucks. The Taurus fan is capable of moving a LOT of air! The only recommendation for the relay wiring is to go plenty heavy. I wired mine up the first time without looking on the net and used soome generic stereo shop 30 amp relays. It melted a lug and one of the wires going to the relay. So I went and got a couple of Bosch relay kits and decent sized wire, searched the web and did it correctly the second time. I was surprised by the current draw of that Siemens fan motor!