Lennox 78H74 - Limit Switch
The Lennox 78H74 is a high-limit temperature switch designed to provide critical safety control within heating systems. Acting as a protective device, it monitors internal temperatures and interrupts power to the burner or heating element if temperatures rise above a specified threshold. This prevents potential overheating and helps safeguard both the equipment and the surrounding environment.
Commonly found in Lennox gas furnaces, the 78H74 is built to meet OEM specifications, ensuring a precise fit and dependable operation. It is typically mounted in the heat exchanger area or other high-heat zones and responds rapidly to rising temperatures.
Technical Specifications:
- Type: High-limit temperature switch
- Function: Opens the circuit when the set temperature limit is exceeded
- Connection Type: Quick-connect terminals
- Mounting: Surface mount
- Compatibility: Fits a range of Lennox gas furnace models (check model specifications)
Applications:
- Prevents furnace overheating
- Ensures safety by shutting down heating when temperature exceeds safe levels
- Ideal for maintenance or repair on compatible Lennox systems
Trust the Lennox 78H74 Limit Switch for accurate thermal control and long-term system safety. Available now at Beenimax.com—your reliable source for genuine Lennox HVAC parts.