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Blast freezer EK-SR-491DC7-A04 C

Blast freezer EK-SR-491DC7-A04 C
Illustrative photo

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

Product code: EK-SR-491DC7-A04 C

Cooling capacity i
119.78 kW
Air flow
125,384 m³/h
Fin spacing
7.0 mm
Fans
4 × ⌀910 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: 4 — Number of fans (one digit).
  • C
    Fan diameter: 91 — Ø910 mm
  • D
    Dimensional data - coil size letter: D — 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: 7 — Fin spacing about 7 mm
  • G
    Generation code: A — Generation A
  • H
    Fan data: 04 — Ø910: 400V/3Ph/50Hz, 6-pole

Data

Evaporator
Air flow 125,384 m³/h
External surface 527.3 m²
Inner volume 157.3 dm³
Fin spacing 7.0 mm
Fin materialAluminium
Net weight 1,339 kg
Fans
Quantity 4
Diameter 910 mm
Speed 840 rpm
Power 11,200 W
Supply 400V/3Ph/50Hz
Motor type AC
Poles 6
Acoustic
Sound pressure 71.0 dB(A)
Sound power 96.1 dB(A)
Energy class E
Connections
Inlet Ø35
Outlet Ø54
Defrost
EK-SR-491DC7-A04 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)
115.224 kW
Low speed (Y)
99.520 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 44.65 44.61 44.70 44.86 44.77 44.54 44.23 44.40 46.97 50.74 49.49 49.02 48.37 47.40
5 52.92 53.69 54.39 61.13 61.31 61.09 60.72 60.95 64.57 69.74 67.92 67.25 66.26 64.74
6 64.89 66.91 68.68 77.61 78.48 78.74 78.57 78.89 83.60 90.34 87.90 87.00 85.71 83.71
7 75.50 78.73 81.70 93.78 95.80 96.95 97.21 97.80 103.70 112.22 109.36 108.24 106.59 103.97
8 84.73 89.29 ≈ 93.47 ≈ 107.98 110.86 112.76 113.92 115.22 122.46 133.04 130.45 129.41 127.85 125.29
9 103.56 110.28 116.42 121.86 125.75 128.38 130.06 131.71 140.04 152.24 149.37 148.18 146.39 143.39
10 112.16 120.65 128.45 135.35 140.39 143.90 146.19 148.28 157.74 171.62 168.52 167.20 165.20 161.80

Low speed (Y)

Cooling capacity [kW] per air inlet temperature and TD
TD [K] \ air [°C] -35-30-25-20-15-10-502510121520
4 39.46 39.21 39.18 39.29 39.23 39.08 38.86 39.25 41.57 44.97 43.97 43.60 43.08 42.31
5 46.72 46.98 47.32 52.91 53.01 52.86 52.55 52.91 56.12 60.70 59.23 58.71 57.97 56.86
6 57.50 58.61 59.64 67.30 67.74 67.76 67.43 67.78 71.84 77.67 75.58 74.83 73.77 72.14
7 67.70 69.92 71.57 81.44 82.53 82.98 82.92 83.37 88.37 95.60 93.07 92.08 90.66 88.43
8 76.67 79.89 82.88 95.13 97.18 98.50 98.85 99.52 105.54 114.30 111.39 110.24 108.52 105.75
9 94.13 99.01 103.50 107.51 110.30 112.12 113.20 114.46 121.62 132.14 129.45 128.35 126.70 123.66
10 102.39 108.71 114.50 119.62 123.27 125.71 127.22 128.75 136.84 148.73 145.79 144.55 142.68 139.51

Standard ratings (EN 328 / Eurovent)

Standard condition Air inlet [°C] TD [K] High speed (Δ) [kW]Low speed (Y) [kW]
SC1 10 10 168.516145.794
SC2 0 8 115.22499.520
SC3 -18 7 94.69081.963
SC4 -25 6 68.68459.638
SC5 -34 6 65.42257.818

Dimensions

Dimension drawing of EK-SR-491DC7-A04 C
Dimension drawing
Dimensions as drawn
A 5660 mm
B 1360 mm
C 3390 mm
F 1310 mm
G 2370 mm
E 5265 mm
H 1393 mm
I 5690 mm
D IN 2 x Ø35
D OUT 2 x Ø54
Overall [mm]
Length 5660 mm
Width 1393 mm
Height 3390 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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