Carrier HH19ZA170 Switch 30067439-890 Adjustable Pitch Settings: Permits the

Adjustable Pitch Settings: Permits the technician to dial in the exact pitch diameter (1

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

Designed specifically to mitigate the damaging effects of electrical arcing

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

maintaining the same 0

Carrier HH19ZA170 Switch 30067439-890 Adjustable Pitch Settings: Permits 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