Dear Trnsys user's i am modelling a building which is cooled by using 2-pipe fan coil unit. The Chiller setpoint is 7 degree C and flow rate is 1385 kg/hr. The building loads are vary in every hour but i m getting constant return temperature of water due to which the chiller load is also constant. Thank you -- With regards, Abhay Pratap Singh MNIT, Jaipur