Electrical connection The VLT® Pressure Transmitter PTU 025 module is easily integrated into the VLT® HVAC Drive, and is fully IP55 and IP66 compatible. It is easily mounted into the enclosure of the VLT® HVAC Drive, and retrofitted existing drives. Ordering number Order with code number 134B5925. Includes pressure transmitter with tube relief and internal C-option connection cable with cable binder. Specifications System integration Pressure sensor inputs Pressure sensor outputs Control method Communication Compatibility Alarm parameterization Filter alarm Performance Measuring accuracy Environment Temperature Range IP class Sensors 1 and 2*; working area of 0-500 Pa. Sensor 3**; working area of 0-1000 Pa. Sensor 4**; working area of 0-2500 Pa. 5 mm pressure tube tap connection Pressure signals on digital output, relay or as analogue values. Airflow control with close-loop PID regulator on air volume or pressure level in air channel. Internal connection to C-option slot on VLT® HVAC Drive FC 102. Data communication via different fieldbus networks VLT ® HVAC Drive FC 102 with minimum software version 5.12. Retrofit solution with new control card for older version Customized selection of alarm levels, based on below and or above alarm level with fixed, linear or square speed control. One alarm from each pressure sensor 4 set-up operation modes Pressure compensated to altitude, and absolute accuracy of ±2.5% of sensor FS value and temperature range -25 to +50 ºC IP66 * Filter monitoring with min / max alarm. ** Filter monitoring with min / max alarm or as input for airflow control SENSOR 4 SENSOR 1 SENSOR 3 The PTU 025 is easily mounted into the FC 102 drive enclosure, and provides 360º access for optimal tube connections. Example of installation: This air handling unit is equipped with 7 sensors. The inlet and outlet are controlled by separate VLT® HVAC Drives. Additional filters are optional. DKDD.PFM.102.A4.02 SENSOR 1 SENSOR 2 SENSOR 4 SENSOR 3 © Copyright Danfoss Drives | 2021.08
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