FS4BF-036KA Nutone Air Conditioner

Pressure switches maintain the pressure and shut the system down if negative pressure is detected. Outdoor auto-reset high pressure switch designed to open pressure rise to 650 psi.

General purpose enclosed single pole, double throw relay with minimum class "B" 24 AC volt coil. Typical application is to handle inductive motor loads such as a blower motor or pilot duty resistive load.