I would take it into the store and ask the guy how to hook it up properly. Do the instructions thats come with it seem right? Does the instructions pictures look the same as your model?

I wouldn't take shit from the store owner (High Or not). Get them to show you what you spent your money on. and how it works best. If they don't return it and go somwhere else I can't stand Grow Shops, espically Head shops they are terrible I like to find PLant Shops onces that sell all kinds of stuff to everyone not just weed growers.

They are more helpful and way kinder to a less experienced grower such as myself

kd_special