Description
The Hubbell Industrial Controls 69HA1X2AZ140175 Heavy Duty Pressure Switch is used to check and control the pressure of the HVAC systems. It works on the basis of closing or opening electrical contacts when system pressure is in the 140-175 PSI range, which is a safe operation. It works through the involvement of a diaphragm and spring assembly, which reacts to the change of pressure the switch. It is installed into the system through the 1/4 NPT connection, and it is connected with the electrical control circuit.
