Nordyne 626422R Limit Switch Key Benefits for Contractors: Direct

Key Benefits for Contractors: Direct OEM Compatibility: Verified replacement for HH12ZA189 and HH12ZA189A

the Resideo 392449-1 is suitable for both gas types as it is a mechanical fitting

making it a critical component for technicians measuring duct static pressure or liquid levels in tanks and reservoirs

12-inch probe and 1/2-inch disc for seamless integration into existing control boards

and GM series

Nordyne 626422R Limit Switch Key Benefits for Contractors: DirectThe Nordyne 626422R Limit Switch is a critical safety component designed for furnace rollout protection in gas fired and oil fired HVAC systems. This thermal limit switch is engineered to open the circuit at a 155F cut out temperature, immediately interrupting the gas valve circuit if flame rollout or excessive heat is detected near the burner box. As a manual reset rollout switch, it requires a technician to physically inspect the heat exchanger and