Johnson Controls A421AEC-01 Temperature Control 30067439-890 The switch includes a physical

The switch includes a physical "Off" position on the dial for manual system shutdown during maintenance or cleaning

Common Questions & Technical Support Can the VT3211 be used for steam applications

functioning reliably with both 0 to 15 psig and 0 to 20 psig supply lines

if your diagnostics reveal that the inducer motor is running and the pressure switch is closed but no spark is generated at the electrodes

Whether you are performing a Barber Colman 22-120 replacement or a new system build

Johnson Controls A421AEC-01 Temperature Control 30067439-890 The switch includes a physicalThe 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