You may already have this all squared away but if you don't: The Haier does not come pre-assembled so you will need to put the tower and faucet together anyway. So you can certainly put the faucet on top of the bar if you would like. If you have issues with the temp. (as I, and many others, did) then follow these instructions for the solution:
http://www.tommydehart.com/fun/keg/haier_brewmaster.htm