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by Scott Dunlap
Needed Parts:
1. Attach the refrigerator temperature controller to the back of the freezer. The probe goes into the chest of the freezer and the freezer plugs into the controller, which in turn plugs into the electrical socket. You can set the controller at anywhere from 20-80 degrees F. The controller will turn on and off the freezer to maintain the desired temperature with a 4 degree F differential (this prevents the freezer from being overworked). I set mine to 42 degrees F.
2.Mark out with tape where you want to put the tower usually centered left to right and slightly recessed from the center front to back.
3.Using a 1-inch keyhole drill bit, drill one or two holes overlapping each other and run the beer lines through the freezer door. Tape off the edges of the sheet metal for added protection against wear from rubbing on the beer line.
4.Since the door is made of sheet metal I purchased some 1 inch long sheet metal screws and attached the tower to the top of the freezer (after attaching the beer line to the faucet) door making sure the seal was lined up to help insulate the freezer.
5.Then attach the gas regulator to the carbon dioxide tank and hook the gas line form the regulator to the corny keg. Finally the beer line could be attached to the corny keg.
6.Refrigerator rollers can be used to place the freezer allowing you to pull the freezer away from the wall when opening the top or else the tower will hit the wall.
7.A drip tray can also be made from sheet metal and caulk.
Do not drill into the side of the freezer. A chest freezer is different than a refrigerator in the sense that there are cooling elements all the way around the freezer. For this reason you will have to purchase a tower or fabricate a collar to the top (http://www.oregonbrewcrew.com/freezer/freezer.html).