BKMR-4N-4GE-23Y
53.07 kW
Compressor rack BKMR-4N-4MM-20X
Defrost: None
Product code: BKMR-4N-4MM-20X
- Refrigerating capacity i
- 51.87 kW
- Absorbed power
- 40.40 kW
- COP
- 1.28
- Compressors
- 4 × semi-hermetic reciprocating compressors
- Receiver
- 150 l
Nominal conditions: evaporating -35 °C, condensing 40 °C (dew points), superheat 10 K, subcooling 3 K; refrigerant R404A where rated.
Model nomenclature
How to read the code of this model.
-
A
Series: BKMR — Khufu ModularRack
-
B
Number of compressors: 4 — Number of identical compressors on the rack (2 to 6).
-
C
Application: N — Low temperature
-
D
Compressor model: 4MM-20X — Model of the compressors fitted (all compressors of a rack are the same model); an 'EVI' tail marks enhanced vapour injection.
Data
| Application | Low temperature (LT) |
|---|---|
| Compressors | 4 × semi-hermetic reciprocating compressors |
| Liquid receiver | 150 l |
| Net weight | 1,092 kg |
| Max. current | 122.0 A |
|---|---|
| Starting current | 266.5 A |
| Suction | 4"1/8 |
|---|---|
| Liquid | 1"3/8 |
| Discharge | 2"1/8 |
| L / W / H | 790/538/1605 mm |
|---|---|
| Weight | 150 kg |
Performance
Evaporating temperature -50…5 °C, condensing temperature 20…55 °C (dew points); superheat 10 K, subcooling 3 K.
R404A, evaporating -35 °C, condensing 40 °C (dew points; superheat 10 K, subcooling 3 K)
- Refrigerating capacity
- 51.87 kW
- Absorbed power
- 40.40 kW
- COP
- 1.28
- Current
- 80.5 A
- Heat rejection
- 92.27 kW
Heat rejection = refrigerating capacity + absorbed power. COP = refrigerating capacity / absorbed power.
Rated from the compressors' data: this rack is no longer in the manufacturer's current program.
Standard points
| Te [°C] | Tc [°C] | Refrigerating capacity [kW] | Absorbed power [kW] | COP | Current [A] |
|---|---|---|---|---|---|
| -35 | 40 | 51.87 | 40.40 | 1.28 | 80.5 |
| -35 | 45 | 44.93 | 41.07 | 1.09 | 81.3 |
Evaporating × condensing temperature (dew points)
R404A; rows: condensing temperature Tc [°C]; columns: evaporating temperature Te [°C]. The highlighted cell is the nominal point. "—": outside the compressors' operating envelope.
Capacity [kW]
| Tc \ Te [°C] | -40 | -35 | -30 | -25 | -20 | -15 | -10 | -5 |
|---|---|---|---|---|---|---|---|---|
| 20 | 58.80 | 78.80 | 102.67 | 131.07 | 164.40 | 203.33 | 248.27 | 299.87 |
| 25 | 53.47 | 72.13 | 94.53 | 121.20 | 152.53 | 189.07 | 231.47 | 280.13 |
| 30 | 47.87 | 65.47 | 86.40 | 111.20 | 140.40 | 174.67 | 214.40 | 260.27 |
| 35 | 42.40 | 58.67 | 78.00 | 101.07 | 128.13 | 160.13 | 197.20 | 240.27 |
| 40 | 36.80 | 51.87 | 69.60 | 90.80 | 115.87 | 145.33 | 180.00 | 220.13 |
| 45 | 31.20 | 44.93 | 61.20 | 80.53 | 103.47 | 130.53 | 162.53 | 199.87 |
| 50 | 25.60 | 38.13 | 52.80 | 70.13 | 90.93 | 115.73 | 145.07 | 179.60 |
| 55 | 20.27 | 31.33 | 44.40 | 59.87 | 78.53 | 100.93 | 127.60 | 159.33 |
Power [kW]
| Tc \ Te [°C] | -40 | -35 | -30 | -25 | -20 | -15 | -10 | -5 |
|---|---|---|---|---|---|---|---|---|
| 20 | 31.20 | 35.33 | 39.20 | 42.67 | 45.60 | 48.00 | 49.73 | 50.53 |
| 25 | 32.27 | 36.93 | 41.20 | 45.33 | 48.93 | 52.13 | 54.53 | 56.27 |
| 30 | 33.20 | 38.27 | 43.20 | 47.87 | 52.27 | 56.00 | 59.33 | 61.87 |
| 35 | 33.87 | 39.47 | 44.93 | 50.27 | 55.33 | 59.87 | 63.87 | 67.33 |
| 40 | 34.27 | 40.40 | 46.53 | 52.40 | 58.13 | 63.47 | 68.40 | 72.67 |
| 45 | 34.40 | 41.07 | 47.73 | 54.40 | 60.80 | 66.93 | 72.53 | 77.73 |
| 50 | 34.27 | 41.47 | 48.67 | 56.00 | 63.20 | 70.00 | 76.67 | 82.67 |
| 55 | 33.73 | 41.47 | 49.33 | 57.33 | 65.20 | 72.93 | 80.40 | 87.33 |
COP
| Tc \ Te [°C] | -40 | -35 | -30 | -25 | -20 | -15 | -10 | -5 |
|---|---|---|---|---|---|---|---|---|
| 20 | 1.88 | 2.23 | 2.62 | 3.07 | 3.61 | 4.24 | 4.99 | 5.93 |
| 25 | 1.66 | 1.95 | 2.29 | 2.67 | 3.12 | 3.63 | 4.24 | 4.98 |
| 30 | 1.44 | 1.71 | 2.00 | 2.32 | 2.69 | 3.12 | 3.61 | 4.21 |
| 35 | 1.25 | 1.49 | 1.74 | 2.01 | 2.32 | 2.67 | 3.09 | 3.57 |
| 40 | 1.07 | 1.28 | 1.50 | 1.73 | 1.99 | 2.29 | 2.63 | 3.03 |
| 45 | 0.91 | 1.09 | 1.28 | 1.48 | 1.70 | 1.95 | 2.24 | 2.57 |
| 50 | 0.75 | 0.92 | 1.08 | 1.25 | 1.44 | 1.65 | 1.89 | 2.17 |
| 55 | 0.60 | 0.76 | 0.90 | 1.04 | 1.20 | 1.38 | 1.59 | 1.82 |
Dimensions
| L | 3115 mm |
|---|---|
| P | 1000 mm |
| H | 1450 mm |
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The data are illustrative and may change without notice. Capacities are interpolated from the manufacturer's rating grid; points the manufacturer did not rate are shown as "not rated" and never estimated.