For many, being proactive with chiller maintenance in the early winter has led to better results in the spring, when it’s time to start the systems up again. Performing chiller maintenance as early in the winter as possible gives facility managers the benefit of finding major damage with plenty of time to fix the problems before the chiller needs to be back in operation.

Bob and Tim are driving to a new customer site where there is a complaint of the building not maintaining the correct temperature. The system is a 50-ton air cooled chiller mounted on the roof. The weather is very hot, 97°F, and the indoor conditions are 78°F. The thermostat is set for 75°, and it is late afternoon.