2nd generation 2-stage - S4T-5.2Y

Bitzer 2nd generation 2-stage S4T-5.2Y

Bitzer 2nd generation 2-stage S4T S4T-5.2Y

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 : 19,7 (LP) 12,6 (HP)
  • Number of cylinders : 4
  • Oilcharge : 3 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
S4T-5.2Y 30 Qo 9160 7660 6330 5160 4160 3290 2550 1930 1410 980
Pe 4,50 4,20 3,88 3,54 3,19 2,84 2,49 2,15 1,81 1,50
35 Qo 9000 7510 6210 5070 4080 3220 2500 1880 1370 940
Pe 4,80 4,47 4,12 3,75 3,37 2,98 2,60 2,22 1,86 1,52
40 Qo 8830 7370 6610 4970 3990 3150 2430 1830 1320
Pe 5,10 4,74 4,36 3,96 3,55 3,13 2,72 2,31 1,91
45 Qo 8660 7230 5970 4870 3910 3080 2370 1780
Pe 5,41 5,01 4,59 4,17 3,73 3,29 2,84 2,39
50 Qo 8500 7100 5860 4780 3830 3020 2320
Pe 5,72 5,28 4,83 4,38 3,92 3,45 2,98
55 Qo 8350 6980 5770 4700 3770 2970
Pe 6,05 5,55 5,07 4,60 4,12 3,63

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
S4T-5.2Y 30 Qo 7210 5850 4700 3740 2930 2260 1710 1270 905 615
Pe 4,18 3,83 3,48 3,13 2,78 2,44 2,10 1,76 1,43 1,10
35 Qo 6790 5500 4420 3510 2750 2120 1600 1180 840 560
Pe 4,41 4,03 3,66 3,29 2,92 2,55 2,19 1,83 1,47 1,10
40 Qo 6360 5160 4140 3280 2570 1980 1490 1090 770
Pe 4,62 4,22 3,82 3,43 3,04 2,66 2,28 1,89 1,51
45 Qo 5930 4800 3850 3050 2380 1830 1380 1000
Pe 4,82 4,39 3,97 3,56 3,16 2,76 2,36 1,96
50 Qo 5480 4440 3560 2820 2200 1690 1260
Pe 5,01 4,56 4,12 3,70 3,27 2,85 2,43
55 Qo 5020 4070 3260 2580 2010 1540
Pe 5,20 4,74 4,29 3,84 3,39 2,94

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
S4T-5.2(Y) 19,7 12,6 4 3 136 22 7/8 28 11/8 380 ..420YY/3/50
440 ..480 YY/3/60
14 6,9 39/68