Sounds delicious. I LOVE ice coffee.

My advice is to definitely generate buzz on social media as well as a series of YouTube videos of every day people using the unit and enjoying the iced coffee.

Some ideas:
1. Join a coffee lovers group on Facebook and LinkedIn. More importantly, an iced coffee lovers group. There are several on Facebook for both regular and iced coffee.
2. Once you join those coffee lovers groups, definitely start talking about making iced coffee manually. Don't push the product yet, but if you have an employee who can post on Facebook every day, I suggest posting, liking, and getting into the group conversations. Make your brand known by making your presence know.
3. YouTube videos. You do not need anything elaborate, but definitely decent. Have several YouTube videos of people using the product and enjoying it in the hot outdoors. Also, a video where you can teach people to make iced coffee like a recipe and have your product in the spotlight throughout the video.

I have so many more suggestions for Twitter, Pinterest, Instagram and Google Plus. I'd am available to provide you more solutions as well, if you are interested.

Bruce