BKMR-2N-4MU-25X
31.70 kW
Compressor rack BKMR-2N-4FE-28Y
Defrost: None
Product code: BKMR-2N-4FE-28Y
- Refrigerating capacity i
- 31.80 kW
- Absorbed power
- 24.80 kW
- COP
- 1.28
- Compressors
- 2 × semi-hermetic reciprocating compressors
- Receiver
- 120 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: 2 — Number of identical compressors on the rack (2 to 6).
-
C
Application: N — Low temperature
-
D
Compressor model: 4FE-28Y — 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 | 2 × semi-hermetic reciprocating compressors |
| Liquid receiver | 120 l |
| Net weight | 640 kg |
| Max. current | 72.8 A |
|---|---|
| Starting current | 269.4 A |
| Suction | 2"5/8 |
|---|---|
| Liquid | 1"3/8 |
| Discharge | 1"3/8 |
| L / W / H | 714/455/1834 mm |
|---|---|
| Weight | 130 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
- 31.80 kW
- Absorbed power
- 24.80 kW
- COP
- 1.28
- Current
- 51.2 A
- Heat rejection
- 56.60 kW
Heat rejection = refrigerating capacity + absorbed power. COP = refrigerating capacity / absorbed power.
Standard points
| Te [°C] | Tc [°C] | Refrigerating capacity [kW] | Absorbed power [kW] | COP | Current [A] |
|---|---|---|---|---|---|
| -35 | 40 | 31.80 | 24.80 | 1.28 | 51.2 |
| -35 | 45 | 27.50 | 24.90 | 1.10 | 51.3 |
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 | 36.80 | 48.80 | 63.40 | 80.90 | 101.60 | 126.10 | 154.70 | 188.10 |
| 25 | 33.40 | 44.70 | 58.30 | 74.70 | 94.20 | 117.30 | 144.50 | 176.30 |
| 30 | 29.90 | 40.40 | 53.20 | 68.50 | 86.80 | 108.50 | 134.10 | 164.20 |
| 35 | 26.30 | 36.10 | 48.00 | 62.30 | 79.40 | 99.60 | 123.60 | 151.80 |
| 40 | 22.70 | 31.80 | 42.80 | 56.00 | 71.90 | 90.70 | 112.90 | 139.10 |
| 45 | 19.30 | 27.50 | 37.50 | 49.70 | 64.30 | 81.60 | 102.10 | 126.30 |
| 50 | 15.90 | 23.30 | 32.30 | 43.30 | 56.60 | 72.40 | 91.10 | 113.20 |
| 55 | 12.70 | 19.10 | 27.10 | 36.90 | 48.80 | 63.00 | 80.00 | 99.90 |
Power [kW]
| Tc \ Te [°C] | -40 | -35 | -30 | -25 | -20 | -15 | -10 | -5 |
|---|---|---|---|---|---|---|---|---|
| 20 | 19.60 | 22.40 | 25.20 | 27.90 | 30.30 | 32.40 | 34.00 | 35.20 |
| 25 | 20.10 | 23.30 | 26.50 | 29.60 | 32.50 | 35.10 | 37.30 | 39.00 |
| 30 | 20.40 | 24.00 | 27.50 | 31.00 | 34.40 | 37.50 | 40.20 | 42.50 |
| 35 | 20.60 | 24.50 | 28.40 | 32.30 | 36.10 | 39.70 | 43.00 | 45.90 |
| 40 | 20.60 | 24.80 | 29.10 | 33.40 | 37.70 | 41.70 | 45.50 | 49.00 |
| 45 | 20.40 | 24.90 | 29.60 | 34.30 | 38.90 | 43.50 | 47.80 | 51.80 |
| 50 | 20.10 | 24.80 | 29.80 | 34.90 | 40.00 | 45.00 | 49.80 | 54.40 |
| 55 | 19.50 | 24.60 | 29.80 | 35.30 | 40.80 | 46.20 | 51.60 | 56.60 |
COP
| Tc \ Te [°C] | -40 | -35 | -30 | -25 | -20 | -15 | -10 | -5 |
|---|---|---|---|---|---|---|---|---|
| 20 | 1.88 | 2.18 | 2.52 | 2.90 | 3.35 | 3.89 | 4.55 | 5.34 |
| 25 | 1.66 | 1.92 | 2.20 | 2.52 | 2.90 | 3.34 | 3.87 | 4.52 |
| 30 | 1.47 | 1.68 | 1.93 | 2.21 | 2.52 | 2.89 | 3.34 | 3.86 |
| 35 | 1.28 | 1.47 | 1.69 | 1.93 | 2.20 | 2.51 | 2.87 | 3.31 |
| 40 | 1.10 | 1.28 | 1.47 | 1.68 | 1.91 | 2.18 | 2.48 | 2.84 |
| 45 | 0.95 | 1.10 | 1.27 | 1.45 | 1.65 | 1.88 | 2.14 | 2.44 |
| 50 | 0.79 | 0.94 | 1.08 | 1.24 | 1.42 | 1.61 | 1.83 | 2.08 |
| 55 | 0.65 | 0.78 | 0.91 | 1.05 | 1.20 | 1.36 | 1.55 | 1.77 |
Dimensions
| L | 1915 mm |
|---|---|
| P | 800 mm |
| H | 1500 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.