| The chillers cool water and pipe it to customers' buildings for use in their air-conditioning systems. |
| The university was able to upgrade all of its chillers to high-efficiency units and install variable speed pumping units. |
| The chillers cool water to 39 degrees and then the water is piped to customers' buildings for use in their air-conditioning systems. |
| These new greener chillers use sound waves for cooling instead of environment-damaging chemical refrigerants linked to global warming. |
| Natural-gas-fired absorption chillers and variable speed pumps, motors and fans increase the efficiency of the cooling and heating system. |
| As a result, the panels were heating the air when the chillers were cooling it, and they remained on all night. |
