The Rheem-Ruud 42-101233-81 Pressure Switch is a critical safety component designed for precise furnace draft monitoring and combustion blower verification

This SKU typically refers to the mounting plate assembly itself

Key Benefits Enhanced Durability: Silver-cadmium oxide contacts provide superior resistance to pitting and welding under heavy 40A loads

the VM3221 is specifically designed for liquid hydronic service and is not rated for steam use

This component provides the necessary airtight interface between the hot surface ignitor and the burner mounting plate

Johnson Controls A19ABC-4 Temperature Control Els PW 17895 The Rheem-Ruud 42-101233-81 Pressure SwitchThe Johnson Controls A19ABC 4 is a heavy duty mechanical remote bulb temperature control designed for high accuracy regulation in HVACR and industrial systems. Built with a liquid filled sensing element, this SPDT temperature switch provides dependable single stage control for both heating and cooling applications. It features a broad setpoint range of 50? F to 130? F and an adjustable differential of 3. 5? F to 14? F, allowing technicians to fine