Danfoss ADAP-KOOL® automated control system

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Abstract

Danfoss company presents the electronic system of control and monitoring of refrigeration equipment ADAP-KOOL. This system provides the automatic recording and representation of all the current performance parameters and systems operational characteristics of the refrigeration equipment of supermarkets and other large objects. ADAP-KOOL is capable of implementing the automatic recording of systems parameters and events and also giving signals about the faults appeared, and providing the remote control of equipment in emergency situations.

Complex use of ADAP-KOOL allows to have a substantial saving of expenditures through the reduction to the minimum of products spoilage, reduction of labor force, power saving (up to 30 % from total consumption). One of the main particular features of ADAP-KOOL is the use of electronic expansion valves of pulse type which don't need control, can be used with any refrigerants and work in the broadest range of temperatures and capacities (10-100 %).

Besides the evaporators controllers, Danfoss offers the controllers of capacity. These controllers, apart from standard set of functions, such as balancing the number of hours of running compressors and condenser fens, night conditions of work, control of compressors with several of capacity, have a number of new functions.

About the authors

Yu. Yu. Fetisov

Danfoss

Author for correspondence.
Email: info@eco-vector.com
Russian Federation

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2. Fig. 1. Electronic pulse expansion valves type AKV

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3. Yury Fetisov, Danfoss

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4. Fig. 2. AKV pulse expansion valve operation on the principle of pulse modulation

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5. Fig. 3. Design of AKV pulse expansion valves for evaporators with capacity: a - 1... 16 kW; b - 25... 100 kW

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6. Fig. 4. Schematic diagram of the installation of overtemperature measurement sensors and characteristic of the pulse expansion valve

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7. Fig. 5. The principle of adaptive superheat control

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8. Fig. 6. AKC 724 performance controller complete with temperature sensors, pressure sensor and expansion valve AKV 10 (right)

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9. Fig. 7. AKS 25H5 performance controller complete with sensors and alarm collection module

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10. Fig. 8. Controller connection diagram

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11. Fig. 9. Connection diagram of the AKS 25H5 controller

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12. Fig. 10. Performance control principle with a neutral zone

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Copyright (c) 2002 Fetisov Y.Y.

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