HIGH EFFICIENCY MODE-DEPENDENT HEATING AND COOLING SYSTEMS

摘要

A heating, ventilation, and air condition (HVAC) system is disclosed. The HVAC system includes mode-dependent, movable barriers that can open and close to increase the efficiency of the systems. The movable barriers can be positioned proximate either a gas furnace heat exchanger or air conditioning coils. In a closed configuration, the movable barriers constrict a portion of air flow through a cabinet or other air flow conduit. The movable barriers can be activated by several means including blower airflow, springs, motors, or other such motion devices. Redundancies are also described to ensure the movable barriers are in the proper position. The redundancies described include sensors that measure the condition of the air itself as well as sensors to directly detect the position of the movable barriers.