OEM replacement limit switch for Lennox residential furnaces and HVAC systems. Opens electrical circuit at 175°F to prevent heat exchanger overheating; automatically resets at 145°F. Direct replacement for legacy part 102857-07. Compatible with Lennox, Allied Air, Armstrong, Concord, and Ducane equipment.
Lennox 73W20 Limit Switch 175°F
Lennox
$46.95
Currently out of stock
- SKU:
- 73W20
- Product Type:
- Limit Switch
- Subcategory:
- High-Limit (Thermal)
- Application:
- Residential
- System Type:
- Furnace, Air Handler
- Installation Type:
- OEM Replacement
- Mounting Type:
- Stilt Mount
- Setpoint Range:
- 145–175°F
- Fuel Type:
- Natural Gas
- Control Type:
- Non-Programmable
- Switch Action:
- SPST-NC
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