Evaporative cooler with single variable resistance temperature control system

摘要

An air conditioning apparatus comprises drawing in fresh ambient air that is to be cooled by an evaporative cooler, and using baffles to control a proportion of drawn in heated return air from an environment (room) and mixing it with the cooled fresh air to control the temperature of mixed air being expelled into the environment. The environment may be a data center (diagram 5). A single fan may draw in both the fresh air and return air.