Carrier HH19ZA170 Switch 30067439-890 Designed specifically to mitigate the

Designed specifically to mitigate the damaging effects of electrical arcing

R-22 Optimization: Specifically designed for legacy R-22 refrigerant systems requiring precise flow regulation

Designed to handle the high-torque demands of Lennox air conditioner and heat pump units

000 service hours or annually to prevent poor atomization and excessive soot accumulation

Carrier HH19ZA170 Switch 30067439-890 Designed specifically to mitigate theThe Carrier HH19ZA170 is a high limit HVAC temperature safety switch engineered for critical thermal protection in residential and commercial furnaces. As a genuine OEM replacement part, this 170 degree limit switch is calibrated to effectively interrupt the heating cycle if the internal plenum temperature reaches its thermal cutout threshold of 170F. The HH19ZA170 limit switch serves as a mandatory safeguard, preventing heat exchanger damage and