The Pre-Conditioned Air project at SeaTac Airport allows airplanes parked at the gate to provide passengers with heating and air-conditioning without the need to run onboard equipment. The design included a centralized chilled water plant with four York centrifugal chillers that delivers subcooled glycol/water to all 73 gates. In addition to the chillers, CMS also provided 16 FAFCO ice storage tanks that allows the facility to either use the chillers directly, or run them at off-hours to charge the ice tanks for use at a later time. This innovative solution helped airlines at SeaTac significantly reduce fuel costs while also drastically reducing greenhouse gas emissions.  Because of this, the Pre-Conditioned Air project won an international ASHRAE Industrial Facilities award.  CMS is dedicated to assisting with complex HVAC solutions that provide the best possible results for the customer while using the latest technologies and equipment that will last for years to come.




Seattle, WA