Johnson Controls A421AEC-01 Temperature Control Els PW 17895 this OEM replacement bonnet gasket

this OEM replacement bonnet gasket ensures a leak-proof interface between the valve body and the bonnet assembly

this part ensures the inducer motor maintains the required vacuum pressure before allowing the ignition sequence to proceed

System Protection: Acts as the primary line of defense against condensate leaks

The Emerson Alco 048221

Johnson Controls A421AEC-01 Temperature Control Els PW 17895 this OEM replacement bonnet gasketThe Johnson Controls A421AEC 01 is a high performance single stage electronic temperature control designed for heavy duty HVACR applications requiring precision and environmental protection. This unit features a versatile 120 240 VAC power supply and a wide temperature control range of 40? F to 212? F ( 40? C to 100? C), making it ideal for everything from walk in freezers to boiler systems. Built with a NEMA 4X watertight enclosure, the A421AEC 01 is