THE SAME TYPE OF PRODUCTS
Danfoss VLT® HVAC Drive is dedicated to ventilation, heating, and refrigeration applications. With a wide range of powerful standard and optional features, the VLT® HVAC Drive provides the lowest overall cost of ownership.
Features and benefits:
200-240 V.....1.1 kW - 45 kW
380-480 V.....1.1 kW - 1000kW
525-600 V.....1.1 kW - 90 kW
525-690 V.....11 kW - 1,4 MW
IP20/chassis, IP21/NEMA 1, IP55/NEMA 12 and IP66/NEMA 4X
Dedicated HVAC features Auto tuning of the PI controllers
With auto tuning of the PI controllers, the drive monitors how the system reacts on corrections made by the drive - and learns from it, so that precise and stable operation is achieved quickly.
Automatic Energy Optimization
The standard feature AEO provides optimized motor magnetization at all speeds and loads. This increases energy efficiency by 5-15% for partial loads.
The VLT® HVAC Drive provides a complete range of energy consumption information, which helps identify low-efficiency components in the HVAC system.
PM motor support
Support for any non salient permanent magnet motor up to 22 kW for better system efficiency. For more information, please see our brochure “EC+ is the smart trend in HVAC Drive Technology” above.
Automated Resonance Monitoring
The drive can easily be set to avoid frequency bands at which connected fans create resonances in the ventilation system. This reduces installation time and system wear.
Fan Belt Monitoring
From the relation between current and speed, the VLT® HVAC Drive is able to reliably recognize a broken belt.
Fire Override Mode
In Fire Override Mode, the VLT® HVAC Drive will not react to control signals, warnings or alarms. It will continue reliable operation as long as possible and run until it is eventually destroyed itself to ensure that fire escapes remain free of smoke
Set point in temperature
The VLT® HVAC Drive calculates the actual room temperature from the pressure in the cooling media and refines compressor operation accordingly without the need for additional software, sensors or controllers. This feature allows less expensive pressure sensors to be used.