Overview
The Johnson Controls P70AA-400C is a high-pressure control designed primarily for commercial refrigeration and air conditioning systems. It features a single-pole single-throw (SPST) Open-Low switch action, making it ideal for condenser fan cycling control and high-side pressure management with high-pressure, non-corrosive refrigerants.
Features
- All-steel case and cover provide rugged protection for internal components.
- “Sight-Set” calibrated pressure adjustment displays a visible scale for adjustment without removing the cover.
- Flexible installation with a 36-inch capillary tube and 1/4-inch flare nut.
- Reliable SPST Open-Low switch configuration tailored for fan cycling.
Specifications
- Pressure Range: 100 to 470 psig
- Differential: 35 to 200 psi adjustable
- Maximum Working Pressure: 690 psig
- Switch Action: SPST Open-Low (Opens on low pressure)
- Connection Size: 1/4 inch Flare Nut with 3-foot capillary
- Electrical Rating: 17 Amps at 240 V
Applications
- Condenser fan cycling control in commercial HVAC systems
- High-side pressure operating control for refrigeration equipment
- Limit protection for commercial air conditioning components
- Pressure control for air, water, and oil in non-corrosive fluid applications



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