VLT® Refrigeration Drive FC 103 improves efficiency of compressors, condensers, evaporators and pumps in Global Refrigeration. Dedicated solutions deliver higher energy efficiency, optimum system performance and enhanced reliability

VLT® Refrigeration Drive FC 103 reduces lifecycle costs For over 60 years the Danfoss Refrigeration team has specialised in the development of innovative and effective refrigeration technology solutions. Danfoss has now developed the ideal drive for refrigeration system compressors, condensers, evaporators, fans and pumps – the VLT® Refrigeration Drive FC 103. To help significantly reduce lifecycle costs of your refrigeration systems, the VLT® Refrigeration Drive FC 103 offers efficiency and reliability enhancing features, integrated process control functions and commissioning environment specifically...

Faster system payback with speed control Reducing the operating costs of refrigeration systems with quick payback is becoming increasingly important. Speed control of the electric drives used in these systems is a pragmatic and effective approach. Load-dependent speed control reduces power consumption and therefore saves money. With its functions specifically tailored for refrigeration technology, it reduces total life cycle costs in the application. The drive reduces the number of external components, required integrates easily into existing When you consider that energy costs amount to 90% or...

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Optimise compressor performance coefficient – Achieve system-wide energy efficiency The performance of a refrigeration system is expressed using the energy efficiency ratio (EER) or the coefficient of performance (COP). This is the ratio of the generated cooling or heating capacity to the power actually consumed, and is usually based on full-load operation. However, it is not enough to rate a refrigeration unit at just one load level, since most refrigeration systems operate under partial load conditions. This means that significant energy savings can be obtained using speed control. Refrigeration system...

Pumps in process cooling or air-conditioning systems • Coolant pump capacity according to demand • Stable coolant flow and pressure • Stand-alone control using VLT® Refrigeration Drive FC 103 • Operate from direct signal (0/4-20 mA or 0-10 V DC) Fans in process cooling or airconditioning systems • Optimized operation of air handling units • High efficiency • Airflow according to demand • Stand-alone control using VLT® Refrigeration Drive FC 103 • Operate from direct signal (0/4-20 mA or 0-10 V DC) Cold room The figure on the left shows the condensation temperature curve (red) and the evaporation temperature...

Multi-zone pack controller – Improved energy savings and stable operation Read the compressor status directly from the display. D = Variable speed control, O = Off, R = Mains operation, X = Deactivated There is a speed range in the interaction between the compressor and frequency converter that allows the system to save energy. The compressor should function within this range most of the time. If the difference between the maximum required performance and the average performance under partial load is too great, it is a good idea to use a cascade configuration. In many cases the required capital...

Commissioning is fast and easy using the the frequency converter display panel. The wizard that appears the first time the device is switched on guides the user through the necessary settings. The user only has to switch from external to internal control. If necessary, the wizard can be called up again from the Quick Menu. Configuring the necessary parameters is even easier with the wizard in theVLT® Motion Control Tool MCT 10 software. During operations, the FC 103 can show the compressor status on the frequency converter display panel and log the compressor’s operating time and number of starts....

Dedicated compressor features The VLT® Refrigeration Drive FC 103 is designed for operating piston, scroll, screw compressors and centrifugal compressors. Variable speed control allows the refrigeration capacity of a compressor to be adapted to exactly match the demand. Day/night control Compressors usually operate with different setpoints depending on the time of day. This in turn results in different evaporator fan speeds, resulting in reduced energy consumption. This function can be easily programmed with day/night control. Neutral Zone The FC 103 continues to control fixed speed compressors...

Dedicated condenser and evaporator features User-friendly, distributed intelligence and reduced power consumption are beneficial for condenser and evaporator applications. Floating condensing temperature optimises COP VLT® Refrigeration Drive FC 103 intelligently controls evaporative condensers or air-cooled condensers to optimise refrigeration system performance (COP) at lower energy consumption. The drive adapts condensing temperature set point as the outdoor temperature drops, lowering the set point to a new stable level. This functionality provides: • Increased cooling capacity at lower power...

Dedicated pump features The VLT® Refrigeration Drive FC 103 offers a vast number of pump-specific features developed in cooperation with OEMs, contractors and manufacturers around the world. Embedded Pump Cascade Controller The Pump Cascade Controller distributes running hours evenly across all pumps, keeps wear and tear on individual pumps to a minimum and ensures that all pumps are in great shape. Leakage or broken pipe Continuous liquid supply can be assured in the event of leakage or a broken pipe. For example, overload is prevented by reducing drive speed – and supply is secured at lower flow....