High Conductivity: Copper and nickel alloys deliver the necessary millivolts to keep the main gas valve energized during the heating cycle

this switch ensures the electrical circuit is interrupted the moment system pressures exceed safe operating parameters

Broad Compatibility: Engineered for DN40 (1-1/2") and DN50 (2") valve bodies with a standard 3/4" stroke

3/8" Sweat Connection: Designed for standard liquid line sizing with precise tolerances for high-temp silver solder or brazing alloys

Its zinc-plated finish prevents corrosion

Johnson Controls P170AA-2 Control 30067439-890 High Conductivity: Copper and nickelThe Johnson Controls P170AA 2 is a professional grade high pressure cutout control designed for heavy duty commercial refrigeration and HVAC applications. Featuring a Single Pole Single Throw (SPST) switch configuration with open low action, this unit provides precise head pressure control and condenser fan cycling to maintain system equilibrium. Engineered for non corrosive refrigerants including R410A, the P170AA 2 operates within a 0 150 PSIG range