Honeywell L4029E1219 : Fan & Limit Controller – 165°F Manual Reset High Limit Control
The Honeywell L4029E1219 Reset Limit Control is a fire safety thermostat designed for HVAC and furnace applications. It ensures safety by shutting off the fan when the air temperature reaches a critical level, preventing fire spread through ductwork. Additionally, it provides high-limit protection for warm air furnaces, locking out the burner in case of fan failure.
Key Features:
✔ Fire Prevention Safety – Shuts down the fan when air temperature indicates potential fire risk.
✔ Rapid Response – A bimetal strip sensor inserted directly into the airstream ensures immediate temperature detection.
✔ Manual Reset Required – Prevents automatic reset to enhance safety compliance.
✔ SPST Snap-Acting Switch – Normally closed, breaking on temperature rise to the set point.
✔ Easy Installation – Compact design with 3-inch element insertion length for seamless integration into ductwork.
✔ UL & CSA Approved – Certified for safety and compliance in HVAC and industrial applications.
Specifications:
- Application: High-limit fan and limit controller
- Switching Action: SPST, normally closed, opens on temperature rise
- Fixed Temperature Setpoint: 165°F
- Element Insertion Length: 3 inches
- Electrical Ratings:
- 30A @ 240 VAC (Locked Rotor)
- 60A @ 120 VAC (Locked Rotor)
- 10A @ 120 VAC (Full Load)
- 5A @ 240 VAC (Full Load)
- 2A @ 30 VAC
- 0.25A @ 0.25–12 VDC (Pilot Duty)
- Maximum Ambient Temperature:
- Switch: 190°F
- Sensing Element: 350°F
- Dimensions:
- Height: 3-3/4 inches
- Width: 2-5/16 inches
- Depth: 2 inches
- Approval & Certifications:
- UL Listed (File No. MP466, Vol. 8, Guide No. MBPR2)
- CSA Certified (File No. LR95329-5)
- Manufacturer Part Number: L4029E1219/U
- UPC Code: 085267049412
Ideal for:
- Ductwork Fire Safety – Prevents fans from spreading fire in HVAC systems.
- Warm Air Furnaces – Ensures burner lockout in case of fan failure.
- Commercial & Industrial HVAC Applications – Enhances system reliability and fire safety.
The Honeywell L4029E1219 is an essential fire safety and high-limit control solution for HVAC systems, ensuring safety and compliance in ventilation systems and furnaces.
