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Blast freezer EK-SR-280BC4-A05 C

Blast freezer EK-SR-280BC4-A05 C
Illustrative photo

Producer: Karyer · Line: EK-SR (Blast Freezers)

Product code: EK-SR-280BC4-A05 C

Cooling capacity i
57.56 kW
Air flow
49,770 m³/h
Fin spacing
4.6 mm
Fans
2 × ⌀800 mm

Nominal conditions: refrigerant R404A, evaporation (dew point) −8 °C, inlet air 0 °C, humidity 85 %

Model nomenclature

How to read the code of this model.

  • A
    Model code (series): EK-SR — EK-SR - blast freezer
  • B
    Number of fans: 2 — Number of fans (one digit).
  • C
    Fan diameter: 80 — Ø800 mm
  • D
    Dimensional data - coil size letter: B — First letter of Karyer's "dimensional data". With the fan count and diameter it fixes the finned coil length and the tubes per row (one casing size). It is a catalogue size index, not a measure: take dimensions from the model datasheet.
  • E
    Dimensional data - tube rows: C — 4 tube rows
  • F
    Fin spacing: 4 — Fin spacing about 4 mm
  • G
    Generation code: A — Generation A
  • H
    Fan data: 05 — Ø800: 400V/3Ph/50Hz, 4-pole

Data

Evaporator
Air flow 49,770 m³/h
External surface 260.6 m²
Inner volume 53.6 dm³
Fin spacing 4.6 mm
Fin materialAluminium
Net weight 708 kg
Fans
Quantity 2
Diameter 800 mm
Speed 1,310 rpm
Power 7,800 W
Supply 400V/3Ph/50Hz
Motor type AC
Poles 4
Acoustic
Sound pressure 72.0 dB(A)
Sound power 96.0 dB(A)
Energy class E
Connections
Inlet Ø35
Outlet Ø54
Defrost
EK-SR-280BC4-A05 C None

Performance

No glide: dew, mid and bubble point give the same rating.

TD (air − evaporating) must be within 4–10 K; air inlet −40…+20 °C.

R404A, dew point -8 °C, air inlet 0 °C (TD 8 K)

High speed (Δ)
55.338 kW
Low speed (Y)
49.203 kW

Capacity matrix [kW]

R404A, Dew point; rows: TD = air inlet − evaporating temperature, columns: air inlet temperature. The highlighted cell is the nominal point (SC2). "—": not rated by the manufacturer.

≈ 1.23 estimate — vendor data irregular here

High speed (Δ)

Cooling capacity [kW] per air inlet temperature and TD
TD [K] \ air [°C] -35-30-25-20-15-10-502510121520
4 21.77 21.59 21.58 21.62 21.57 21.46 21.34 21.46 22.73 24.58 24.04 23.84 23.56 23.15
5 25.89 26.17 26.43 29.61 29.62 29.49 29.24 29.38 31.13 33.63 32.79 32.45 32.00 31.33
6 31.98 32.71 33.49 37.91 38.21 38.23 38.03 38.17 40.43 43.66 42.48 42.03 41.42 40.49
7 36.95 38.39 39.69 45.40 46.24 46.74 46.97 47.43 50.37 54.58 53.10 52.53 51.71 50.43
8 41.58 43.66 ≈ 45.54 ≈ 52.43 53.65 54.40 54.78 55.34 58.77 63.78 62.43 61.90 61.11 59.84
9 50.93 54.06 56.89 59.34 61.03 62.10 62.70 63.37 67.32 73.09 71.55 70.92 69.99 68.47
10 55.27 59.28 62.91 66.09 68.32 69.79 70.65 71.50 75.98 82.55 80.84 80.13 79.06 77.29

Low speed (Y)

Cooling capacity [kW] per air inlet temperature and TD
TD [K] \ air [°C] -35-30-25-20-15-10-502510121520
4 19.51 19.35 19.31 19.36 19.33 19.27 19.19 19.41 20.57 22.29 21.84 21.67 21.44 21.10
5 23.23 23.31 23.43 26.19 26.16 26.06 25.89 26.10 27.69 29.96 29.27 29.03 28.69 28.17
6 28.76 29.28 29.74 33.40 33.54 33.49 33.30 33.47 35.48 38.34 37.34 36.98 36.47 35.71
7 33.78 34.80 35.76 40.73 41.23 41.36 41.24 41.42 43.88 47.43 46.12 45.63 44.92 43.81
8 38.14 39.67 41.08 47.04 47.95 48.49 48.74 49.20 52.25 56.70 55.47 54.89 54.00 52.58
9 46.89 49.26 51.40 53.28 54.53 55.31 55.71 56.24 59.72 64.82 63.40 62.83 61.99 60.60
10 51.06 54.16 56.96 59.40 61.08 62.14 62.73 63.37 67.31 73.07 71.49 70.83 69.85 68.23

Standard ratings (EN 328 / Eurovent)

Standard condition Air inlet [°C] TD [K] High speed (Δ) [kW]Low speed (Y) [kW]
SC1 10 10 80.83671.489
SC2 0 8 55.33849.203
SC3 -18 7 45.78441.002
SC4 -25 6 33.48629.737
SC5 -34 6 32.23128.910

Dimensions

Dimension drawing of EK-SR-280BC4-A05 C
Dimension drawing
Dimensions as drawn
A 3060 mm
B 1360 mm
C 2790 mm
F 1310 mm
G 1770 mm
E 2665 mm
H 1393 mm
I 3090 mm
D IN 1 x Ø35
D OUT 1 x Ø54
Overall [mm]
Length 3060 mm
Width 1393 mm
Height 2790 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.

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