Product Introduction 
　　International concern regarding the environmental impact of refrigeration systems is rapidly increasing, leading to reflection on refrigerants. The lower the energy consumption of a refrigeration system, the smaller its environmental impact and the lower its total lifecycle cost. Numerous regulations and standards have been or are being implemented in various regions of the world (such as the EU), all of which impose minimum energy efficiency requirements on refrigeration systems. 
　　BITZER has always focused on improving compressor efficiency and launched the ECOLINE series of compressors specifically optimized for R134a several years ago. The R134a refrigerant offers high performance in medium- and high-temperature heat pump applications, including very high efficiency, low pressure (reducing leakage rates), and the lowest GWP among all non-flammable HFC refrigerants. 
　　This gives the new BITZER ECOLINE compressor series a higher overall efficiency ratio. BITZER ECOLINE compressors can operate at lower condensing temperatures. Studies for the supermarket sector show that cascade refrigeration systems consisting of R134a and CO2 compressors (products optimized for total lifecycle cost and TEWI) offer particularly high ecological and economic efficiency and very low energy consumption. 
　　The BITZER ECOLINE series now has more product models and expanded versatility. ECOLINE compressors can use a variety of common refrigerants, and their application range with these refrigerants has also been expanded compared to previous series. 
　　The refrigerants that ECOLINE can now use include: R134a, R404A, R407A, R407C, R407F, F507, and R22. 
　　The design of this series of compressors also considers the possibility of using low-GWP HFO or HFO family refrigerants. The COP of BITZER ECOLINE series compressors is up to 12% higher than previous products. 
　　The improvement in product efficiency is achieved through further optimization of the compressor valve plate design, reduction of internal compressor losses, reduction of compressor exhaust pulsation, and the use of high-efficiency motors. 
　　This series of compressors can also be used with inverters, with a frequency range of 30Hz to 70Hz for the CE3 series to the BE6 series, which can operate at variable frequencies between 25Hz and 70Hz. Therefore, the compressor's cooling capacity can be precisely matched to the system load. 
　　Compressors specifically for R134a (No. 3 motor series) can be operated at up to 70Hz using a standard motor (400V/3/50Hz). 
　　Product Features 
　　New valve group design; 
　　New cylinder head design for lower exhaust pulsation; 
　　Optimized internal flow paths, reducing pressure losses; 
　　New piston and connecting rod design; 
　　High-efficiency motor. 
　　Technical Parameters

　　Notes 
　　① Adjustable device (optional): 220V .. 240V / 1/50/60Hz 
　　② The allowable deviation is 10% of the rated value. Please consult Bitzer for other electrical products. 
　　③ Data are parameters under 400V/3/50Hz conditions. When selecting contactors, cables, and fuses, please refer to the compressor's maximum operating current or maximum operating power. Also see ⑤. 
　　Please use a thermal relay to limit the maximum operating current. For contactors, please select AC3 products. Please use a thermal relay to protect the compressor's maximum operating current. 
　　④ PW: The motor is a split-winding start Y/YY 
　　　　● 4VES-6Y … 6FE-50Y The split-winding capacity ratio is 50%/50% 
　　　　● Select the motor contactor according to 60% of the maximum operating current. Motor 3 variable frequency operation: Select the contactor according to the maximum operating current at 70Hz. 
　　　　● 8GE-50(Y) .. 8FE-70(Y) △/△△ split winding 60%/40% 
　　　　　Select the first coil contactor according to 70% of the maximum operating current 
　　　　　Select the second coil contactor according to 50% of the maximum operating current 
　　　　● For split-winding motors, please refer to 60% of the motor's maximum operating current when selecting the contactor. 
　　　　● Y / Ɣ motors, please consult Bitzer. 
　　⑤ When the compressor is used with a variable frequency drive 
　　　—Compressors equipped with motor No. 3 (R134a dedicated compressors) can use a 400V/3/50Hz standard motor increased to 70Hz under 400V/3/50Hz power supply conditions. 
　　　Products equipped with motors No. 1 and 2 require special motors if they need to be used above 50Hz in the entire application range. 
　　　Please consult Bitzer for variable frequency compressor use.