The Johnson Controls P32AF-2C sensitive pressure switch senses a change in the differential pressure (either velocity pressure or pressure drop across a fixed restriction in the duct) as air flow in the duct changes.
Features
The P32AF-2C includes an easy-to-read set point scale, a small and compact size, sensitive pressure setting, dust-tight snap switch, and versatile mounting options. Applications include pressure/air flow proving with electric duct heaters, humidifiers, and other equipment, maximum pressure/air flow control for variable volume systems, reheat duct powered systems, clogged filter detection, detection of icing of air conditioning coils and initiation of defrost cycle.
Specifications
| Maximum Over-pressure psig (kPa) | 1 (6.9) |
| Contact Action | SPDT |
| Ambient Temp. Max. | 167F (75C) |
| High Pressure Connector | metal 1/8 in. female NPT inside, 1/2 NPSM outside for mounting |
| Low Pressure Connector | molded 1/8 in. female |
| Product Code | P32AF-2C |
| Range in. WC (kPa) | 0.1 to 5(.1 to 1.2) |
| Mounting Bracket (included) | BKT229-1R |