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Designed to handle the high-torque demands of Lennox air conditioner and heat pump units
Safety Calibration: 200°F fixed trip point protects the heat exchanger and internal components from thermal stress
R-22 Optimization: Specifically designed for legacy R-22 refrigerant systems requiring precise flow regulation
maintaining the same 0
the control board will lock out the ignition process as a safety precaution
Carrier HH19ZA170 Switch 30067439-890 Designed to handle the high-torqueThe 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
US$ 67.60
US$ 37.20
US$ 137.90