• WHOLE HOUSE VENTILATION: Provides whole house ventilation control that''s integrated into the home''s Central HVAC system. LOW-COST STRATEGY: Two operational modes work to help a home achieve the lowest cost per HERS point for either supply or balanced ventilation strategies. WALL-MOUNTED CONTROL: Programmable Wall-Mounted Controller coordinates between Central HVAC system, dampers, and WhisperGreen Select fans through a patented algorithm that calculates optimum operation time and cycles. LONG LIFE, GUARANTEED: Panasonic ventilation fans, switches, modules, and accessories are high-quality and built to last. Included 3-year limited warranty. CODE COMPLIANT: WhisperGreen Select fans are ENERGY STAR certified and comply with ASHRAE 62.2, LEED, CALGreen, California Title 24, Washington VIAQ codes and standards. SelectCycler works to optimize airflow within these standards.

Ventilation Control: This system provides whole house ventilation control that coordinates between your central HVAC system, dampers and WhisperGreen Select fans for the ultimate energy efficient ventilation at lowest cost per HERS point; For 8'''' duct