Johnson Controls A19BBC-4 Utility Thermostat 30067439-890 the 151888R is a common

the 151888R is a common replacement part for various Nortek brands

Safety Optimized: The SPNO close on fall logic prevents gas valve activation if the venting system is obstructed or the draft is insufficient

Can I use this relay to replace the P-8-8479

Field technicians often prioritize this unit for its durability and precise fit

Durable Construction: Built with corrosion-resistant materials suitable for high-demand HVAC blower wheel applications

Johnson Controls A19BBC-4 Utility Thermostat 30067439-890 the 151888R is a commonThe Johnson Controls A19BBC 4 Utility Thermostat is a rugged, SPDT temperature control designed for heavy duty HVACR applications, including cooling towers, refrigeration units, and unit heaters. Engineered with a stainless steel coiled sensing element, this mechanical thermostat operates without the need for external power, making it a reliable choice for process temperature control in demanding environments. It supports high capacity electrical