Built with a 1/2-inch NPT connection and a 1

Is this kit interchangeable with other valve sizes

or 3 to 3 on connectors J1 and J2 and find values outside the 150K ohm (+/- 1

For technicians servicing Carrier 40RM fan coils

Self-Powered Operation: Relies on thermopile output to operate the gas solenoid

Lennox 18M63 Pressure Switch 320735-701 Built with a 1/2-inch NPTThe Lennox 18M63 Pressure Switch is a high precision, two stage OEM furnace part specifically engineered for compatible Lennox, Armstrong, and Ducane heating systems. This dual action component provides critical monitoring of combustion air pressure, ensuring the inducer fan maintains the proper venting required for safe ignition and continuous high efficiency operation. With fixed set points of 0. 20" WC and 0. 45" WC, this switch accurately