Euro Line multi compressor pack TCC Rack EV2B-TCC-4HE-18Y-40P o.E.

Frequency-regulated Bitzer power racks work using two semi-hermetic Bitzer compressors. These units have been specially developed for use in refrigeration systems with variable refrigeration demand. The use of a Power Electronics Yaskawa frequency converter allows compressors to run continuously while optimally adjusting cooling performance to the current conditions. The frequency converter operates one or both compressors according to the current power requirements. This achieves a very wide power band width. In the event of a failure of the frequency converter, a low pressure switch and manual switch can be used to activate emergency mode operation with a single compressor. These devices are therefore an energy-efficient and space-saving alternative to power racks with multiple compressors.

The Bitzer compressor units are available in seven different power classes. They are designed for use with refrigerant R134a in the normal cooling range. Other refrigerants and operating conditions on request. Cooling power is regulated depending on the intake pressure. A Power Electronics Yaskawa frequency converter is used in combination with a pressure transmitter to control the power rack. This is mounted and thermally decoupled on the intake side and records the actual intake pressure value. The power rack controller regulates the cooling power of the rack so that the target value is achieved as closely as possible.

The frequency converter is included with the control box. Configuration is input via a keyboard. The frequency convertor comes pre-configured. Only a small number of parameters must be changed to adjust the target value. The control box is mounted to the frame and wired. Alternatively it can be delivered loose. All components are mounted to a tough riveted steel profile frame.
All parts of the frame have a double coating. The power rack stands on the supplied rubber-bonded metal base. Refrigeration lines are conveniently grouped together at the rear. Devices are fitted with an oil separator and reservoir as standard in order to ensure reliable operation, even during a temporary minimal cooling load on the system. The compressors feature electronic oil level regulators.

• optimally adapt compressor performance to changing loads on the refrigeration system
• low minimum cooling power
• optimal temperature and quality for refrigerated goods
• minimal space needed due to compact design
• energy saving from better performance control in optimal evaporating temperatures
• standard components mean it is easy to service
• reduce the installed cooling power and thus the cost of investment by use of coincidence factor
• simple installation of a heat recovery systems using a common heat exchanger for all areas to be cooled
• semi-hermetic Bitzer compressors
• shut-off valve on compressor
• crankcase heater
• fluid collector
• refrigerant dryer
• shut-off ball valve with Schrader valve in the fluid line
• pressure transmitter, intake pressure -0.5 - 7 bar
• pressure transmitter, high pressure 0 - 25 bar
• low pressure monitor, type tested
• low pressure switch, for emergency operation
• oil separator/collector with shut-off valve, oil filter and inspection glass in return line
• electronic oil regulator for each compressor
• control box with Power Electronics Yaskawa frequency converter, mounted and wired
• control box can also be provided separately

• halbhermetische Verdichter Fabrikat Bitzer
• Absperrventile am Verdichter
• Kurbelwannenheizung
• Flüssigkeitssammler
• Kältemittel–Trockner
• Kugelabsperrventil mit Schraderventil in der Flüssigkeitsleitung
• Drucktransmitter Saugdruck -0,5 – 7 bar
• Drucktransmitter Hochdruck 0 – 25 bar
• Niederdruckwächter, bauteilgeprüft
• Niederdruckschalter, für Notbetrieb
• Ölabscheider/Ölsammler mit Absperrventil, Ölfilter und Schauglas in der Rückführleitung
• Elektronischer Ölregulator pro Verdichter
• Schaltschrank mit Power Electronics Yaskawa Frequenzumrichter, angebaut und verdrahtet
• Alternativ Schaltschrank lose geliefert

• halbhermetische Verdichter Fabrikat Bitzer
• Absperrventile am Verdichter
• Kurbelwannenheizung
• Flüssigkeitssammler
• Kältemittel–Trockner
• Kugelabsperrventil mit Schraderventil in der Flüssigkeitsleitung
• Drucktransmitter Saugdruck -0,5 – 7 bar
• Drucktransmitter Hochdruck 0 – 25 bar
• Niederdruckwächter, bauteilgeprüft
• Niederdruckschalter, für Notbetrieb
• Ölabscheider/Ölsammler mit Absperrventil, Ölfilter und Schauglas in der
Rückführleitung
• Elektronischer Ölregulator pro Verdichter
• Schaltschrank mit Power Electronics Yaskawa Frequenzumrichter,
angebaut und verdrahtet
• Alternativ Schaltschrank lose geliefert