Description
The Johnson Controls P32AF-13 is a sensitive differential pressure switch engineered for precise airflow and pressure monitoring in commercial HVAC systems. With an ultra-low sensing range starting at just 0.03″ water column, this switch is ideal for detecting minimal pressure differentials across filters, fans, dampers, and ductwork — making it a trusted solution for air proving, filter monitoring, and fan status verification applications.
Key Features
- SPDT (Single Pole Double Throw) switching action for versatile control circuit integration
- Wide adjustable pressure range: 0.03″ Wc to 1.4″ Wc for flexible field calibration
- Convenient scale plate included for easy, accurate setpoint adjustment
- NEMA 1 enclosure rating for indoor installation in clean, dry environments
- Rated for 1/4 horsepower motor loads
- Dual-voltage compatibility: 120/240 VAC for broad electrical system compatibility
Specifications
- Brand: Johnson Controls
- SKU / Model: P32AF-13
- Switch Type: SPDT (Single Pole Double Throw)
- Pressure Range: 0.03″ Wc to 1.4″ Wc (adjustable)
- Setpoint Adjustment: Adjustable with scale plate
- Enclosure Type: NEMA 1
- Motor Rating: 1/4 Horsepower
- Voltage: 120/240 VAC
Applications
- Air filter status and differential pressure monitoring
- Fan proving and air flow verification
- Duct static pressure control
- Commercial HVAC air handling units (AHUs)
- Building automation and control system integration
The P32AF-13’s sensitive low-end detection capability makes it particularly well-suited for applications requiring accurate response to small pressure changes. Its adjustable setpoint with a clearly marked scale plate simplifies commissioning and field service, while the NEMA 1 enclosure ensures reliable performance in standard indoor mechanical room environments.
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