Johnson Controls P29NF-1 Manual Reset With Alarm Circuit 20" 100 PSI 36"

The Johnson Controls P29NF-1 Manual Reset Pressure Switch with Alarm Circuit is the most suitable pressure switch for HVAC applications because of the appropriate pressure control and monitoring features. This switch is designed for a pressure range of 100 PSI and has a temperature range of -40°F to 150°F and safely guards equipment from overpressure conditions. This is used in most industrial and commercial HVAC systems including being part of the key safety devices to monitor pressure changes; in the situation where pressure changes occur, it emits a loud alarm, that people need to reset thereby averting danger or disruptions in progress. The alarm circuit of the switch enhances system reliability because it alerts operators about pressure changes and helps avoid system failure