The chilled ceiling is a popular hydronic radiant cooling solution used in different type of buildings. It has higher cooling efficiency than traditional total air systems and is easy to maintain [13]. Radiant ceiling cooling provides “cool head and warm feet” environment which is preferred to “warm head and cool feet” environment often created by total volume air systems. Nevertheless, the chilled ceiling requires installation of additional ventilation system to provide fresh air into spaces. Typically chilled ceiling is installed with mixing ventilation. However, it is suggested that displacement ventilation combined with chilled ceiling has increased cooling capacity and may provide environment with high air quality and acceptable thermal comfort conditions