Description
Belimo LF24 Spring Return Damper Actuator
The Belimo LF24 is a compact, direct-coupled spring return damper actuator engineered for reliable On/Off control in commercial and residential HVAC applications. Designed to mount directly to damper shafts without the need for crank arms or linkages, the LF24 simplifies installation and reduces maintenance time. Its spring return mechanism ensures the damper returns to a fail-safe position upon loss of power, making it ideal for applications where safety and system integrity are critical.
Key Features
- Spring return fail-safe operation for reliable damper positioning on power loss
- 35 in-lb (4 Nm) rated torque output for dependable damper control
- On/Off control signal for straightforward open/close operation
- Compatible with 24V AC or 24V DC power supply for flexible installation
- Direct-coupled design — no crank arms or linkages required
- Compact, lightweight housing suitable for tight installation spaces
- Manual override function for commissioning and testing convenience
- Plenum-rated for use in air-handling applications
Specifications
- Brand: Belimo
- Model / SKU: LF24
- Torque: 35 in-lb (4 Nm)
- Control Type: On/Off
- Power Supply: 24V AC / 24V DC
- Actuator Type: Spring Return
- Mounting: Direct-coupled, shaft-mount
Applications
- Zone damper control in VAV and constant-volume air distribution systems
- Outdoor air and exhaust damper actuation
- Smoke and fire damper control (verify local code requirements)
- Fan coil unit and air handling unit damper applications
- Commercial and light industrial HVAC systems
Why Choose the Belimo LF24?
Belimo is a globally recognized leader in actuator and valve technology for HVAC systems. The LF24 reflects Belimo’s commitment to precision engineering, long service life, and ease of installation. The spring return design provides added peace of mind by automatically returning the damper to its fail-safe position during a power interruption, helping to protect building occupants and equipment. Whether you’re working on a new installation or a retrofit project, the LF24 delivers the performance and reliability that HVAC professionals trust.
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