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Dry cooler BC/BD-2x491KB5-B04 C

Dry cooler BC/BD-2x491KB5-B04 C
Illustrative photo

Producer: Karyer · Line: BC/BD (General)

Product code: BC/BD-2x491KB5-B04 C

Heat rejection i
388.22 kW
Air flow
196,953 m³/h
Fans
8 × ⌀910 mm

Nominal conditions: water 40 → 35 °C, air inlet 25 °C, relative humidity 50 %

Model nomenclature

How to read the code of this model.

  • A
    Series: BC/BD — BC = vertical, BD = horizontal dry cooler (air flow bottom to top).
  • C
    Fan rows (optional "Nx"): 2 — Catalogue: "Fan Row no." (number before x/X).
  • D
    Number of fans per row: 4 — Digit 1-9; total fans = fan rows x this digit.
  • E
    Fan diameter: 91 — Ø910 mm
  • G
    Coil tube rows (2nd dimensional letter): B — 3 tube rows
  • H
    Fin spacing: 5 — 2.5 mm
  • I
    Generation code: B — generation B
  • J
    Fan data (fan motor code): 04 — three-phase 400 V 50 Hz, 6-pole AC fan (in this series)

Data

Coil
Air flow 196,953 m³/h
External surface 726.2 m²
Inner volume 123.8 dm³
Fin materialAluminium
Net weight 1,194 kg
Fans
Quantity 8
Diameter 910 mm
Speed 840 rpm
Power 22,400 W
Supply 400V/3Ph/50Hz
Motor type AC
Poles 6
Acoustic
Sound pressure 68.0 dB(A)
Sound power 100.0 dB(A)
Energy class E
Connections
Inlet 4"
Outlet 4"
Defrost
BC/BD-2x491KB5-B04 C None

Performance

Outlet 35 °C

Fluid inlet 35–60 °C (outlet = inlet − 5 K, at least 5 K above the air inlet); air inlet 25…50 °C.

WATER 40 → 35 °C, air inlet 25 °C

Heat rejection · High speed (Δ)
388.223 kW Fluid flow 67.37 m³/h Pressure drop 28.0 kPa
Heat rejection · Low speed (Y)
314.228 kW Fluid flow 54.54 m³/h Pressure drop 19.1 kPa

Heat rejection [kW]: Air inlet × fluid inlet (range 5 K)

WATER; rows: fluid inlet [°C], outlet = inlet − 5 K; columns: air inlet temperature. The highlighted cell is the nominal point. "—": not rated by the manufacturer.

High speed (Δ)

Heat rejection [kW]: Air inlet × fluid inlet (range 5 K)
Fluid inlet [°C] \ air [°C] 253035404550
35 210.96 not rated not rated not rated not rated not rated
40 388.22 213.86 not rated not rated not rated not rated
45 561.71 390.20 216.34 not rated not rated not rated
50 734.08 563.03 391.97 218.54 not rated not rated
55 906.01 734.87 564.32 393.66 220.58 not rated
60 1077.65 906.31 735.77 565.68 395.36 222.49

Low speed (Y)

Heat rejection [kW]: Air inlet × fluid inlet (range 5 K)
Fluid inlet [°C] \ air [°C] 253035404550
35 171.50 not rated not rated not rated not rated not rated
40 314.23 173.97 not rated not rated not rated not rated
45 453.23 315.82 176.11 not rated not rated not rated
50 591.20 454.30 317.29 177.99 not rated not rated
55 728.68 591.82 455.37 318.72 179.73 not rated
60 865.94 728.91 592.56 456.56 320.22 181.40

Nominal rating

Nominal conditions: water 40 → 35 °C, air inlet 25 °C, relative humidity 50 %

Fan connection Heat rejection [kW] Fluid flow [m³/h] Pressure drop [kPa]
High speed (Δ) 388.223 67.37 28.0
Low speed (Y) 314.228 54.54 19.1

Dimensions

Dimension drawing of BC/BD-2x491KB5-B04 C
Dimension drawing
Dimensions as drawn
A 5950 mm
B 1450 mm
C 2310 mm
F 1150 mm
G 550 mm
E 5700 mm
H 1400 mm
I 2260 mm
K 6250 mm
D IN 4"
D OUT 4"
Overall [mm]
Length 6250 mm
Width 2310 mm
Height 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.

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