These Frese OPTIMA Compact valves in heating, ventilating and air conditioning systems, they help us control temperature in a room through modulation chilled tempered water supplying into the CROFCUs.
Manuals
Chill Water Valve Actuator Manual
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.