A couple of years ago, one of our clients tasked us with conditioning a seed storage room within a very close temperature and humidity range after the original system failed to deliver what they required. In order to achieve the required temperatue and humidity set points throughout the year it was determined that the rooms required humidification, dehumidification and cooling. We achieved this by installing a high temperature refrigeration system, small humidifier and small dehumidifier controlled from a stand alone programmable controller. The system worked so well our client ordered a second room set up in the same way.