HW S688A-1007

Sail Switches

S688 Sail Switch

• Activates an electronic air cleaner, a humidifier, or other equipment
  in response to airflow from the system fan
• Mounts in the return air duct where the sail will be in the direct path
  of an unrestricted air stream
• Simplified installations with multi-speed fans, in-accessible air handlers,
  fan motors with voltage or phase different from controlled equipment;
  eliminated wiring to system fan
• Polyester film sail mounted on a micro switch snap switch
• Removable spring counterbalances sail to allow mounting in
  either vertical (up or down) or horizontal air flow
• Top and bottom conduit knockouts for wiring convenience
• Low air velocity switch operation makes at 250 fpm and breaks at 75 fpm
• Maximum ambient temperature: 125°F at switches, 170°F at sail