Carrier HH19ZA221 Limit Switch 326058-755 Using a lower RPM motor

Using a lower RPM motor will significantly reduce airflow

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while the double-disc design offers redundant sealing for maximum reliability

Carrier HH19ZA221 Limit Switch 326058-755 Using a lower RPM motorThe Carrier HH19ZA221 Limit Switch is a critical safety component designed for precise thermal monitoring in high efficiency furnace and air handler applications. This OEM replacement limit switch operates as a normally closed contact that opens at a fixed temperature of 220 degrees Fahrenheit to prevent heat exchanger damage or unsafe operating conditions. Featuring a L220 40F calibration, this fixed temperature limit control ensures the system shuts