I have purchased an AC 240V fan and want to wire it up. However both the wires on it are grey and no polarity is stated. Is it possible that polarity does not matter? Below is a link to the documentation that was provided with the fan. Please could someone let me know how this should be wired. Many thanks.
http://www.sunon.com/uFiles/file/03_products/02-AC Fan/SF8038.pdf
http://www.sunon.com/uFiles/file/03_products/02-AC Fan/SF8038.pdf