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BITZER 2nd generation 2-stage

Bitzer Semi hermetic 2-stage S6H-20.2Y

Semi hermetic 2-stage S6H-20.2Y

BITZER is raising the bar in terms of technology and capacity for expanded low temperature applications with the 2nd generation of 2-stage compressors. This series is the result of extensive research on the basis of years of experience in the construction of highly efficient and solid reciprocating compressors. The gas flow control and working valves are specially adapted for low temperature applications.

  • Displacement at 1450 min-1 : 73,6 (LP) 36,9 (HP)
  • Number of cylinders : 6
  • Oilcharge : 4,75 dm3

With liquid subcooling 50Hz (R404A/R507A)

Compressor type Cond.temp. Qo / Pe Evaporating temperature °C
[°C] -25 -30 -35 -40 -45 -50 -55 -60 -65 -70
S6H-20.2Y 30 Qo 31900 27450 23300 19440 15910 12760 10020 7690 5770 4230
Pe 16,43 15,02 13,64 12,30 11,00 9,76 8,57 7,44 6,40 5,40
35 Qo 31300 26950 22850 19030 15560 12480 9190 7560 5670 4140
Pe 17,47 15,95 14,47 13,04 11,66 10,33 9,07 7,86 6,72 5,66
40 Qo 30600 26350 22350 18610 15230 12240 9640 7420 5540
Pe 18,53 16,90 15,32 13,79 12,33 10,92 9,57 8,29 7,07
45 Qo 29900 25750 21850 18200 14920 12010 9470 7260
Pe 19,60 17,85 16,17 14,55 12,99 11,50 10,07 8,70
50 Qo 29350 25200 21350 17810 14630 11800 9280
Pe 20,63 18,79 17,01 15,30 13,65 12,07 10,55
55 Qo 24700 20900 17450 14360 11570
Pe 19,69 17,83 16,03 14,29 12,61

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

Without liquid subcooling 50Hz (R404A/R507A)

Compressor type Cond.temp. Qo / Pe Evaporating temperature °C
[°C] -25 -30 -35 -40 -45 -50 -55 -60 -65 -70
S6H-20.2Y 30 Qo 27700 23100 18960 15300 12110 9380 7130 5300 3850 2740
Pe 15,36 13,69 12,15 10,73 9,44 8,27 7,23 6,32 5,53 4,86
35 Qo 26200 21800 17840 14360 11340 8790 6690 4980 3620 2560
Pe 16,04 14,33 12,73 11,26 9,90 8,67 7,56 6,57 5,71 4,97
40 Qo 24600 20400 16680 13400 10590 8220 6260 4660 3360
Pe 16,70 14,96 13,32 11,79 10,38 9,08 7,89 6,82 5,87
45 Qo 22900 18970 15490 12450 9840 7650 5820 4310
Pe 17,35 15,58 13,91 12,34 10,88 9,51 8,24 7,08
50 Qo 21100 17490 14280 11490 9100 7070 5370
Pe 18,00 16,21 14,52 12,92 11,41 9,98 8,63
55 Qo 19250 15950 13040 10510 8330 6470
Pe 18,66 16,85 15,14 13,52 11,98 10,50

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

Compressor type Displacement at 1450 min-1 Number of cylinders Oil charge Weight Pipe connections Motor Max. operating current Max. power consumption Starting current(lockedrotor)
LP HP DL SL
dm3 Kg mm pouce mm pouce Amp kW Amp. Y/YY
S6H-20.2Y 73,6 36,9 6 7.75 220 35 13/8 42 15/8 380 ..420YY/3/50
440 ..480 YY/3/60		 37 21,5 97/158