Maintain optimal safety and performance in your HVAC system with the Lennox 11H70, 104047-02 Control - Limit. This high-limit control switch is a factory-authorized Lennox OEM part designed to detect excessive heat within the furnace heat exchanger and shut off the burner to prevent damage. It plays a crucial role in ensuring safe furnace operation during abnormal temperature conditions.Key Features and Specifications:
- Manufacturer: Lennox
- OEM Part Numbers: 11H70 / 104047-02
- Function: High-limit temperature control switch
- Temperature Rating: Opens at approximately 130°F to 150°F (varies by model application)
- Reset Type: Automatic reset
- Mounting Style: Surface mount with flange
- Sensor Type: Bimetallic disc sensor
- Electrical Ratings:
- Voltage: 120V–240V
- Current: Up to 10A resistive
- Lead Terminals: 1/4" male quick-connect terminals
- Application: Protects heat exchanger from overheating by cutting off burner operation when safe temperature threshold is exceeded
- Construction: Durable high-heat thermoplastic housing for long-term reliability
- UL Listed: Yes