Ice box chiller

I have a 3/4 hp chiller with one ice box. The chiller is like this one http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=130308340108. Im chilling 2000 watts. This is not a sealed room it stinks to much. I have a 8 inch vortex with charcoil venting out the room. I cant add another ice box as this is a rotogro with a one glass tube for 2 lights. will this keep it cool