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Safety Optimized: The SPNO close on fall logic prevents gas valve activation if the venting system is obstructed or the draft is insufficient
Field technicians often prioritize this unit for its durability and precise fit
If your current wheel is fouled
5-inch diameter and a 20-degree pitch
Johnson Controls A19BBC-4 Utility Thermostat 30067439-890 Safety Optimized: The SPNO closeThe 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
US$ 25.99
US$ 25.99
US$ 27.95
US$ 27.95