The LF24 is used 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 auxiliary contact, digital output, or a manual switch. These actuators are found in critical spaces they provide and extra layer of safety.
Manuals
Tips and Tricks from the Daldrop Team
If a door is not functioning properly, don’t reset it right away, go ahead and remove the cover and record any existing error codes.
Error codes are essential to troubleshooting,
If a door is not closing properly, analyze if air pressure in rooms have changed. If room conditions change, it is important that doors are retrained with the new air changes, “Dorma Quick Start Guide” can help with the procedure of retraining doors.
Common Error Codes
IN15 is an encoder error, verify all parameters are close to factory settings, a parameter set too high or too low causes these error codes.
IN01 is an interruption to opening door error. This error might not reset on itself, if this error code is displayed best is to reset the drive. Someone might have pushed the door and interrupted the opening sequence. This error is common when doors aren’t used properly by the end user.