Euro Line EFUDO

Euro Line compressor unit *FU* regulated EFU-2DO-3 HI240CC+CIMR-AC4A0031

Order No.: 115.8208
Manufacturer number: A08-200003
Manufacturer: SCHIESSL


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Description

Frequency-controlled Dorin power racks operate using two semi-hermetic HI series compressors, where one frequency-controlled compressor takes the role of the master compressor and the second compressor is activated as necessary by the frequency converter. These units have been specially ...

Frequency-controlled Dorin power racks operate using two semi-hermetic HI series compressors, where one frequency-controlled compressor takes the role of the master compressor and the second compressor is activated as necessary by the frequency converter. These units have been specially developed for use in refrigeration systems with variable refrigeration demand. The use of a Power Electronics frequency converter allows the main compressor to run continuously while optimally adjusting cooling performance to the current conditions. The partial load behaviour has been further optimised compared to the E-FU-1DO devices by dividing power across two compressors. These devices are therefore an energy-efficient and space-saving alternative to power racks with multiple compressors. The Dorin power racks are available in 5 different performance classes.

Refrigerants R134a, R404A/R507 can be used. The maximum frequency may be limited for air conditioning applications. Cooling power is regulated depending on the intake pressure. A Power Electronics 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 display. The frequency convertor comes pre-configured. Only a small number of parameters must be changed to make changes to the refrigerant used and the place of use. The control box is mounted to the frame and wired. If there is a fault with the master compressor, then the 2nd compressor is automatically controlled by the FC. If the FC-controlled compressor runs at a minimal frequency for a longer period of time, an oil purge switch is activated. The operating mode switch allows manual activation of temporary emergency operation with a single compressor via an additional low pressure switch (for emergency operation, the bridges in the compressor terminal box must be reconfigured from delta to star configuration!!).

The FC also assumes sequential activation of the two compressors in order to ensure even loads. The control box issues an isolated release signal to control solenoid valves in the fluid line.
In the event of a system fault, this release is deactivated in order to prevent damage from fluid hammering when restarting the system.

All components are attached to a tough riveted steel profile frame. All parts of the frame are powder-coated. The power rack stands on the supplied rubber-bonded metal base. Refrigeration lines are conveniently grouped together at the rear and can be shut off. Power racks are fitted with an oil separator as standard in order to ensure reliable operation, even during a temporary minimal cooling load on the system. Attention: In unfavourable installation conditions (cold plant room, connected heat recovery system), re-condensation of refrigerant can occur in the oil separators. In such cases, the oil separator must be electrically heated.

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Features

  • 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 ...
  • 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

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Scope of delivery

  • Control box with Power Electronics frequency converter, installation and wired
  • semi-hermetic compressor from Dorin with crankcase heater
  • compressor shut-off valves
  • fluid collector
  • refrigerant dryer / inspection glass
  • filling valve in the fluid line
  • ball shut-off valve in the pressure, fluid and ...
  • Control box with Power Electronics frequency converter, installation and wired
  • semi-hermetic compressor from Dorin with crankcase heater
  • compressor shut-off valves
  • fluid collector
  • refrigerant dryer / inspection glass
  • filling valve in the fluid line
  • ball shut-off valve in the pressure, fluid and suction lines
  • pressure transmitter, suction pressure -0.5 - 7 bar
  • pressure transmitter, high pressure 0 - 30 bar
  • high pressure monitor on each compressor, type tested
  • low pressure monitor, type tested for emergency operation
  • low pressure switch for emergency operation
  • oil separator with inspection glass and shut-off valve in the return line, with electrical heating

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Accessories / Replacement parts

  • Filter housing
    Alco suction line filter - dryer housing BTAS-311 35mm solder 015356
    Order No.: 251.0294
  • Filter insert
    Alco filter insert A3F 009909
    Order No.: 251.0276
  • Heater
    control cabinet heating self-regulating 30W 230V f. EFUBO control cabinet
    Order No.: 272.1936
  • Heating element for oil separator
    ESK heating tape HB-35,120 120-130mm
    Order No.: 262.1595
  • Minimum level indicator
    Option: Minimum level indicator ENC2-M-1-3 / 4 '' with adapter
    Order No.: 115.0022
  • Replacement frequency convertor
    Power Electronics frequency convertors IP00 CIMR-AC4A0031FAA 24,0A Serie A1000
    Order No.: 297.9733
  • Weatherproof housing
    Weatherproof housing V2A - EFU2BO-V2 WSG 1540x880x1622mm with control box
    Order No.: 115.0985

Technical data

General information
Number of compressors
2 pcs
Schaltschrank aufgebaut
Ja
Type
E-FU-2DO-3
Weight
Weight net
353 kg
Performance data
Frequency controlled
Ja
Performance data Euro Line
max. refrigerating capacity
1070 W
15240# R134a (t0= 0 °C) (1)
12260# R134a (t0= -5 °C) (1)
9720# R134a (t0= -10 °C) (1)
7560# R134a (t0= -15 °C) (1)
min. refrigerating capacity
1670 W
R134a (t0= 0 °C) (1)
 
1350 W
R134a (t0= -5 °C) (1)
 
1070 W
R134a (t0= -10 °C) (1)
 
830 W
R134a (t0= -15 °C) (1)
Pipe connections
Pressure line
Diameter
22 mm
Liquid line
Diameter
16 mm
Condensate line
Diameter
22 mm
Suction line
Diameter
35 mm
Sound data
Sound power
71,0 dB(A)
Condenser data
required condenser capacity
13,66 kW
with R134a

1) Operating conditions:

  • condensation temperature 45 °C
  • Intake gas temperature 20°C, liquid subcooling 0 K, usable overheat 100%
  • performance data for 20-90 Hz, preconfigured 20-90 Hz.
Technical modifications reserved. Product images may differ from the actual product and are meant for demonstration purposes only. Absolutely no liability can be assumed for possible indication errors and errors in the manufacturers’ information.
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