| For example, some companies may reset chillers 4 degrees for a two-hour window and then bump it up a little. |
| Rounding out this system are six ice water chillers and 15 evaporative condensers. |
| The chillers cool water and pipe it to customers' buildings for use in their air-conditioning systems. |
| As a result, the panels were heating the air when the chillers were cooling it, and they remained on all night. |
| Natural-gas-fired absorption chillers and variable speed pumps, motors and fans increase the efficiency of the cooling and heating system. |
| The university was able to upgrade all of its chillers to high-efficiency units and install variable speed pumping units. |
