Ammonia operator training in Ankeny, Iowa. There is nothing like being around a group of individuals who are as dedicated to the advancement and safety of ammonia refrigeration. With their passion and purpose each and every one will have a successful career in industrial refrigeration. We thank your companies investing in you! Now it is time you go back and return the investment in your departments. Our next class in Iowa is in February and registration is at this link. To view other available course dates and locations please see this link.