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BITZER 2nd generation 2-stage tandem R22

Bitzer Semi hermetic 2-stage tandem R22 S66F-60.2(Y)

Semi hermetic 2-stage tandem R22 - S66F-60.2(Y)

Tandem compressors are the simplest way of connecting two compressors in parallel. Turning on and shutting off one compressor allows for a particularly effective graduation of output. Particularly for applications with load fluctuations, this allows for cost-effective and energy-efficient operation under full- and part-load with all conventional refrigerants.

  • Displacement at 1450 min-1 : 2 x 101,1 (LP) 2 x 50,5 (HP)
  • Number of cylinders : 2x6
  • Oilcharge : 9,5 dm3

With liquid subcooling 50Hz (R22)

Compressor type Cond.temp. Qo / Pe Evaporating temperature °C
[°C] -20 -25 -30 -35 -40 -45 -50
S66F-60.2(Y) 30 Qo 97600 81500 67300 54900 43850 34050 25200
Pe 42,46 39,03 35,56 32,08 28,61 25,15 21,72
35 Qo 96500 80700 66700 54300 43300 33400 24400
Pe 45,41 41,67 37,90 34,12 30,35 26,61 22,91
40 Qo 95500 79900 66100 53700 42750 32800 23600
Pe 48,37 44,29 40,21 36,13 32,06 27,99 23,93
45 Qo 94500 79100 65400 53200 42250 32200
Pe 51,31 46,89 42,50 38,10 33,68 29,20
50 Qo 93500 78400 64900 52800 41800
Pe 54,23 49,46 44,75 40,01 35,17
55 Qo 92700 77700 64400 52400
Pe 57,12 51,99 46,94 41,83

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

Without liquid subcooling 50Hz (R22)

Compressor type Cond.temp. Qo / Pe Evaporating temperature °C
[°C] -20 -25 -30 -35 -40 -45 -50
S66F-60.2(Y) 30 Qo 88900 72500 58400 46400 36100 27300 19640
Pe 34,82 32,86 30,63 28,11 25,26 22,03 18,40
35 Qo 85300 69600 56100 44500 34550 25950 18440
Pe 37,82 35,48 32,88 29,97 26,73 23,13 19,12
40 Qo 81800 66700 53800 42650 33000 24650 17250
Pe 40,80 38,17 35,22 31,91 28,23 24,15 19,64
45 Qo 78100 63800 51500 40800 31500 23400
Pe 43,75 40,88 37,61 33,90 29,71 25,00
50 Qo 74500 60700 49200 39000 30050
Pe 46,62 43,58 40,03 35,92 31,13
55 Qo 70900 58100 46950 37200
Pe 49,41 46,22 42,47 37,95

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
S66F-60.2(Y) 2 x 101,1 2 x 50,5 2 x 6 9,5 461 2 x 35 13/8 2 x 42
2 x 54		 15/8
21/8		 380 ..420YY/3/50
440 ..480 YY/3/60		 2 x 53 2 x 30,1 2 x 135/220