The P70, P72, and P170 Controls for low pressure applications are designed primarily for low pressure cut-out control, pump-down control, and capacity control on commercial refrigeration and air conditioning applications. These controls are available in several pressure ranges and are compatible with most common refrigerants. They may also be used on other non-corrosive fluid applications. Ammonia-compatible models are also available. Controls also are available in several different electrical ratings and switch configurations. The P72 models provide direct control of 208 to 240 V single-phase motors up to 3 horsepower, and 208 to 220 V three-phase motors up to 5 horsepower.

Johnson Controls Penn Dual Low Pressure Control, P70 Series, 120/240 VAC, 1/4 in Flared Nut Connection, SPST Switching Action, 100 lbf/sq-in, 7 to 50 psid, Universal Mounting

• All steel case and cover - built to provide long-lasting, rugged protection for internal components
• Sight-set calibrated pressure adjustment - displays a visible pressure scale, fully adjustable through the range without removing the cover
• Limited knob adjustment option restricts control adjustment ranges and deters tampering and over adjustment
• SPST open low switch action
• 325 lbf/sq-in max over pressure
• 20 in Hg - 100 lb/sq-in pressure range
• Limited knob adjustment