ambient air cooling; cooling with outside air
Technical term used in HVAC and building engineering for cooling indoor spaces by introducing cooler outdoor air instead of using mechanical refrigeration.
This building uses ambient air cooling to save energy.
An ambient air cooling system can reduce the cooling load when the outside temperature is low.
General term for air conditioning or cooling; 外気冷房 specifically refers to cooling using outside air.
Means 'outside air' or 'ambient air'; 外気冷房 is a compound that uses this air for cooling purposes.
Compound of 外気 (outside air) and 冷房 (cooling, air conditioning). A modern technical term.