Bitzer Semi-Hermetic Compressor 2FES-3Y - 2FES3Y

Bitzer Semi-Hermetic Compressor 2FES-3Y

Part Number: 2FES3Y

Bitzer Semi-Hermetic Compressor 2FES-3Y

Part Number: 2FES3Y

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    The new BITZER ECOLINE series offers highly efficient all-purpose compressors which meet the challenging demands of modern refrigeration systems. 

    The ECOLINE series has now been extended to all models and the optimisation package has been developed further for universal use with different refrigerants – at the same time extending the operating ranges. 

    The refrigerants include: R134a, R404A, R407A, R407C, R407F, R513A, R22, R449A, R507A, R450A, R1234yf, R1234ze.

    The compressors are already designed for operation with "Low-GWP" HFO refrigerants and HFO-/HFC blends.   

    The coefficient of performance (COP) of the new ECOLINE models has been improved by an average of 6% up to a maximum of 12% compared with preceding series. 

    This is not achieved with a single component, but by optimising the valve plates, reducing flow losses and discharge gas pulsation as well as specially adapted highly efficient motors with broad band characteristics. 

    Each ECOLINE is compatible with its predecessor compressor.  These predecessor compressors can be substituted without the need for modifying the system. 

    Whereas many of the major internal components have been redesigned, the outer shape has remained virtually unchanged: the same outer dimensions, unchanged mounting points, valve and sensor positions, connections for oil and gas equalisation, as well as for oil level regulators. 

    Motor version 2 covers the classic refrigeration applications – medium and low temperature refrigeration – with one single product. In many cases it can thus replace a predecessor compressor with motor version 1. 

    For supermarket applications with R134a, a version with specially adapted motor is available for the ECOLINE models CE4, BE5 and BE6 – motor version 3 – in addition to motor version 2. 

    Motor version 3 has been specially designed for the pressure levels of R134a and focuses on applications in the medium temperature refrigeration range in modern systems. 

    For compressors with motor version 3, the standard motor can be operated with a frequency inverter up to 70 Hz (for mains voltage 400V/3/50Hz). 


    Extended application range:

    ● R134a up to tc = 85°C 

    ● R404A and R507A up to tc = 62°C 


    Energy efficient high cooling capacity and minimum energy requirement: 

    ● Highly efficient working valves 

    ● Minimum clearance volume 

    ● Efficient, large-volume motor 

    ● Reduced flow losses at low condensing temperatures 


    Wear resistant drive gear: 

    ● Surface hardened eccentric shaft and crankshaft 

    ● Low friction bearings and aluminium pistons 

    ● Hard chrome plated piston rings 


    Quiet with low vibration:

    ● Optimized mass balance 

    ● Low discharge gas pulsations due to special cylinder head design 


    Minimum space requirement:

    ● Very compact design 



    ● Solid valve plate design 

    ● Valves made of impact resistant spring steel 

    ● Wear resistant drive gear 


    Efficient capacity control: 

    ● Cylinder shut-off or VSD capacity control possible 

    ● Cylinder shut-off possible from 18 m3/h displacement (50 Hz) on   

    – 4 cylinder compressor: 50%   

    – 6 cylinder compressor: 66% / 33%   

    – 8 cylinder compressor: 75% / 50% 

    ● CRII cylinder heads allow for stepless capacity control from 100% to 10% when fitted to all cylinder banks of 4 and 6 cylinder compressors (solenoid valves, coils and CRII system controller required eg. Bitzer CM-RC-01).

    ● Tandem compressors from 22,7 m3/h to 303 m3/h (50 Hz) 

    ● Approved parallel operation 

    ● VSD capacity control from 25 to 70 Hz – subject to conditions


  • General Specifications
    Motor Version1
    Displacement9.54 m³/Hr
    Motor SeriesCE1
    Number of Cylinders2
    Suction Line Connection7/8 "
    Discharge Line Connection1/2 "
    Weight47 kg
    Oil Charge1 L
    Oil TypeBSE-32 Ester Oil
    Electrical Specifications
    Voltage380-420 / 3 / 50 Hz
    Motor TypeDOL
    Max Operating Amps6.1 amps
    Crankcase Heater0 - 60 watt 230 volt PTC Self Regulating Crankcase Heater
  • bitzer_semi_ce1

    Units Dimensions (mm)
    1High pressure connection (HP)
    2Discharge gas temperature sensor (HP) or CIC sensor
    3Low pressure connection (LP)
    4CIC System: spray nozzle (LP)
    5Oil fill plug
    6Oil drain
    7Oil filter (magnetic screw)
    8Oil return (oil separator)
    9AGas equalisation (parallel operation)
    9BOil equalisation (parallel operation)
    10Crankcase heater
    11Oil pressure connection +
    12Oil pressure connection -
    16Connection for oil monitoring (oil sensor or differential oil pressure switch “Delta-P”)
    21Connection for oil service valve
  • R134A
    Cond Temp (°C)Evaporating Temperature (°C)
    60Capacity (w)11201540203026103280406049606000
    Input (w)10601240141015701720186019902120
    70Capacity (w)8751230164021302690335041104970
    Input (w)10601270147016601850203022002350
    80Capacity (w)940128016702130266032703960
    Input (w)1270151017401960218023902580


    400v / 3 / 50Hz , 20 Deg Return Gas, no Sub-Cooling
    Require additional cooling &/or return vapour limitations.
    Cond Temp (°C)Evaporating Temperature (°C)
    30Capacity (w)12501740233030303850480059007170864010320
    Input (w)1000117013401490163017601860195020002030
    40Capacity (w)930135018502440313039404860593071608560
    Input (w)960117013801580177019402100225023702460
    50Capacity (w)64599514101900247031303890476057606890
    Input (w)910115014001640188021102330253027202880


    400v / 3 / 50Hz , 20 Deg Return Gas, no Sub-Cooling
    Require additional cooling &/or return vapour limitations.
    Cond Temp (°C)Evaporating Temperature (°C)
    30Capacity (w)12501740233030303850480059007170864010320
    Input (w)1000117013401490163017601860195020002030
    40Capacity (w)930135018502440313039404860593071608560
    Input (w)960117013801580177019402100225023702460
    50Capacity (w)64599514101900247031303890476057606890
    Input (w)910115014001640188021102330253027202880


    400v / 3 / 50Hz , 20 Deg Return Gas, no Sub-Cooling
    Require additional cooling &/or return vapour limitations.
  • Bitzer Scope of Supply - CE1 Compressors (380‐420V Y‐3‐50‐Hz)

    • Crankcase heater 100‐240V‐60W PTC
    • Motor Protection SE‐B3
    • Suction & Discharge shut‐off valves
    • 4 x Vibration dampers
    • Enclosure class IP66
    • BSE‐32 Ester Oil

    Information correct at time of publishing, subject to change without notice.

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