Open hours: 8.00-18.30 MOn-Fri

BITZER 2nd generation 2-stage tandem

Bitzer Semi hermetic 2-stage tandem S66J-32.2Y

Semi hermetic 2-stage tandem S66J-32.2Y

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 63,5 (LP) 2 x 31,8 (HP)
  • Number of cylinders : 2x6
  • Oilcharge : 9,5 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
S66J-32.2Y 30 Qo 55200 47500 40300 33600 27500 22050 17320 13300 9980 7330
Pe 28,25 25,87 23,52 21,21 18,97 16,81 14,75 12,80 10,98 9,31
35 Qo 54200 46600 30750 32900 26900 21600 16980 13060 9810 7160
Pe 30,09 27,49 24,95 22,49 20,11 17,82 15,64 13,56 11,60 9,77
40 Qo 53000 45650 38700 32200 26350 21150 16670 12820 9570
Pe 32,00 29,16 26,43 23,80 21,27 18,84 16,52 14,31 12,20
45 Qo 51900 44700 37850 31550 25850 20800 16370 12540
Pe 33,89 30,84 27,91 25,11 22,43 19,85 17,38 15,02
50 Qo 51000 43750 37050 30900 25350 20400 16050
Pe 35,67 32,45 29,36 26,40 23,56 20,83 18,20
55 Qo 43000 36300 30300 24900 20050
Pe 33,95 30,75 27,65 24,65 21,75

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
S66J-32.2Y 30 Qo 47950 39900 32700 26400 20900 16190 12300 9150 6650 4740
Pe 26,15 23,40 20,85 18,50 16,34 14,36 12,54 10,88 9,37 8,00
35 Qo 45300 37600 30750 24750 19560 15140 11540 8590 6250 4420
Pe 27,23 24,44 21,82 19,37 17,08 14,96 13,00 11,20 9,56 8,08
40 Qo 42500 35200 28550 23100 18270 14180 10790 8030 5800
Pe 28,34 25,53 22,85 20,30 17,89 15,63 13,52 11,56 9,78
45 Qo 39500 32700 26700 21500 16990 13200 10040 7440
Pe 29,46 26,65 23,92 21,29 18,76 16,35 14,08 11,95
50 Qo 36450 30200 24650 19830 15700 12200 9260
Pe 30,60 27,80 25,03 22,31 19,66 17,11 14,67
55 Qo 33250 27550 22500 18150 14380 11160
Pe 31,75 28,94 26,14 23,35 20,60 17,91

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
S66J-32.2Y 2 x 63,5 2 x 31,8 2 x 6 9,5 411 2 x 35 13/8 2 x 42 15/8 380 ..420YY/3/50
440 ..480 YY/3/60		 2 x 31 2 x 18,1 2 x 81/132