Description
The Carrier HH18HA465 is a genuine OEM automatic high-limit switch designed to monitor system temperatures in gas furnaces and packaged units from Carrier, Bryant and compatible brands. It offers vital protection by interrupting the heating sequence if temperatures exceed safe limits—helping prevent system damage, overheating and safety hazards.
Key Features
- Temperature Range: Opens at approximately 165 °F (74 °C) and resets as the temperature drops around 100 °F (38 °C).
- Automatic Reset: Automatically resets when system temperature falls back into safe range—no manual reset required in normal operation.
- Compact Design: Extremely small footprint (approx. 1.1″ × 0.9″ × 0.8″) making fitment in tight furnace compartments simpler.
- OEM Quality: Carrier-branded, designed to match original equipment specifications for reliable, drop-in replacement.
- Safety Function: Critical component in the high-limit control circuit, lending to consistent safe furnace operation and helping avoid overheating conditions.
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