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Dry cooler BC/BD-491KB5-B04 C

Dry cooler BC/BD-491KB5-B04 C
Illustrative photo

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

Product code: BC/BD-491KB5-B04 C

Heat rejection i
195.57 kW
Air flow
98,929 m³/h
Fans
4 × ⌀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).
  • 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 98,929 m³/h
External surface 367.8 m²
Inner volume 54.5 dm³
Fin materialAluminium
Net weight 674 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 65.0 dB(A)
Sound power 97.0 dB(A)
Energy class E
Connections
Inlet 3"
Outlet 3"
Defrost
BC/BD-491KB5-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)
195.574 kW Fluid flow 33.94 m³/h Pressure drop 25.6 kPa
Heat rejection · Low speed (Y)
158.347 kW Fluid flow 27.48 m³/h Pressure drop 17.5 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
35 106.29 not rated not rated not rated not rated not rated
40 195.57 107.74 not rated not rated not rated not rated
45 282.96 196.56 108.98 not rated not rated not rated
50 369.79 283.62 197.44 110.09 not rated not rated
55 456.40 370.18 284.26 198.29 111.10 not rated
60 542.86 456.53 370.62 284.93 199.13 112.05

Low speed (Y)

Heat rejection [kW]: Air inlet × fluid inlet (range 5 K)
Fluid inlet [°C] \ air [°C] 253035404550
35 86.43 not rated not rated not rated not rated not rated
40 158.35 87.67 not rated not rated not rated not rated
45 228.39 159.14 88.75 not rated not rated not rated
50 297.91 228.92 159.87 89.69 not rated not rated
55 367.18 298.21 229.44 160.59 90.56 not rated
60 436.34 367.28 298.57 230.03 161.34 91.40

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) 195.574 33.94 25.6
Low speed (Y) 158.347 27.48 17.5

Dimensions

Dimension drawing of BC/BD-491KB5-B04 C
Dimension drawing
Dimensions as drawn
A 5950 mm
B 1450 mm
C 1230 mm
F 1150 mm
G 550 mm
E 5700 mm
H 1400 mm
I 1180 mm
K 6250 mm
D IN 3"
D OUT 3"
Overall [mm]
Length 6250 mm
Width 1230 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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