Chillers are complex pieces of equipment and a lot of training and education is needed to keep contractors on the top of their games when dealing with this equipment. 

The chillers at Broward Health Medical Center were not achieving the kW per ton for which they were rated — a serious problem that they had not been aware of before, and which had probably cost them over $1 million in excess energy use since installation. 

Operating rooms, critical-care facilities, data centers, imaging centers — plus worker productivity — are, to some extent, dependent on the reliable operation of the HVAC system, particularly in warm weather.