Belimo LF120 US Technical Data Sheet

Torque min. 35 in-lb, for control of air dampers Application For on-off, fail-safe control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications. Control is on-off from an auxil- iary contact, or a manual switch. The actuator is mo ...

LF LF120 (-S) US / LF230 (-S) US On-off, Spring Return Fail-Safe, 120/230 VAC Accessories AV 10-18 Shaft extension (K6-1 is required) IND-LF Damper position indicator K6-1 Universal clamp for up to 3/4” diameter shafts KH-LF Crankarm for up to 1/2” round shaft Tool-06 8mm and 10 mm wrench Z ...

Preliminary steps 1. Belimo actuators should be mounted indoors in dry, rela- tively clean environment free from corrosive fumes. If the actuator is to be mounted outdoors, a protective enclosure must be used to shield the actuator. (See Belimo Mechanical Accessories ) 2. For new construction ...

LF 1. See Fig. B. Manually move the damper to the fail-safe position (a) (usually closed). If the shaft rotated counter- clockwise ( ), this is a CCW installation. If the shaft rotated clockwise ( ), this is a CW installation. In a Left Hand installation, the actuator side ...

® If the shaft extends at least 3/4” from the duct, follow these steps: 1. (See Fig. D) Move damper blades to the fail-safe position (a). 2. Determine the best orientation for the universal clamp on the back of the actuator. The best location would be where you have the easiest access to the ...

LF ® The LF actuators are provided with an adjustable stop to limit the rotation of the actuator. This function works in conjunction with the universal clamp or the optional position indicator. The adjustable stop is needed when rotation of less than 95° is required. The LF actuator can be ...

® Installation Instructions The …-S model actuators are equipped with an adjustable auxiliary switch used to indicate damper position or to inter- face additional controls or equipment. Switching positions can be set over the full 0 to 95° rotation simply by setting a switch on the actuato ...

LF ® WARNING The wiring technician must be trained and experi- enced with electronic circuits. Disconnect power supply before attempting any wiring connections or changes. Make all connections in accordance with wiring diagrams and follow all applicable local and national codes. Provide dis ...

® Startup and Checkout Instructions For LF24-SR (-S) US and LF24-MFT…US + P100 Procedure Remove power to reset actuator. Re-apply power. Apply control signal to actuator. Check power wiring. Correct any problems. See Note 1. Turn reversing switch to the correct position. Make sure the swit ...