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The Carrier HH19ZA156 SW Temp Act is a temperature-based activation switch designed to maintain stable operation across HVAC systems. This OEM limit switch ensures precise thermal regulation, interrupting the electrical circuit at 155°F and restoring continuity at 105°F for safe and consistent performance.
Ensures safe and consistent HVAC system operation through precise temperature regulation and automatic reset.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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