Johnson Controls A19ABC-39C Immersion Hot Water Control, 100-240°F, 290°F

Immersion Hot Water Control from Johnson Controls delivers precise SPDT direct immersion temperature control for hot water systems. The A19ABC-39C model provides dependable regulation with an adjustable differential of 6–24°F and a temperature range of 30°F to 180°F, all housed in a NEMA 1 enclosure for indoor use. This compact, reliable thermostat supports direct immersion heaters, delivering stable temperatures with minimal cycling and helping extend heater life. Designed for easy integration in residential or light commercial setups, it combines trusted Johnson Controls engineering with straightforward installation.

• SPDT Direct Immersion Temperature Control for precise on/off regulation of hot water heaters, ensuring stable supply and reduced temperature swings.
• Temperature Range 30°F–180°F covers most domestic and light commercial needs, enabling quick setup and safer hot water control.
• Adjustable Differential 6°F–24°F lets you balance energy efficiency with fast recovery, reducing wasteful cycling.
• NEMA 1 Enclosure provides basic indoor protection, sturdy mounting, and reliable wiring access for clean, code-compliant installations.
• Model A19ABC-39C from Johnson Controls ensures compatibility with existing systems, trusted performance, and straightforward replacement when upgrading.