FSLF120 US | Fire & Smoke Actuator | 30 in-lb | Spg Rtn | 120V | On/Off | 1m Cable | Belimo
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Fire & Smoke Actuator | 30 in-lb | Spg Rtn | 120V | On/Off | 1m Cable
The type FSLF spring-return actuator is intended for the operation of smoke and combination fire and smoke dampers in ventilation and air-conditioning systems. The actuator will meet requirements of UL555 and UL555S when tested as an assembly with the damper and will meet requirements of UBC for 15 second opening and closing. Square footage of damper operated will depend on make and model and the temperature required.
IMPORTANT 24VDC NOTE: The FSLF24 & -S models will not operate below 24VDC. A filtered and regulated power supply must be used.
Mounting of the actuator to the damper axle shaft or jackshaft is via a cold-weld clamp. Teeth in the clamp and V-bolt dig into the metal of both solid and hollow shafts maintaining a perfect connection. The specially designed clamp will not crush hollow shafts. The bottom end of the actuator is held by an anti-rotation strap or by a stud provided by the damper manufacturer.
The actuator is mounted in its fail safe position with the damper blade(s) closed. Upon applying power, the actuator drives the damper to the open position. The internal spring is tensioned at the same time. If the power supply is interrupted, the spring moves the damper back to its fail-safe position.
I'm happy with the FSLF fire and smoke actuator for my HVAC system for such a good price! The device allows for accurate control with a wide torque range. I love the fail-safe system that automatically moves the damper back to the original position in the case of power outages, as it helps to prevent accidental equipment damage. However, I needed a compatible power supply or transformer to make this actuator work.
Use this valve in our heating system. Works great. Free shipping was also a bonus.
It is light weight and designed well.Belimo also has a great warranty and I got free shipping, win! I will definitely recommend this one.
Having a combination smoke and fire damper actuator is a nice addition. I’m glad that we were able to find this through word of mouth from another operator in our area. I will recommend and continue to use this product.