BC/BD-2x391HB1-B04 C
499.73 kW
Dry cooler BC/BD-2x491BB5-B04 C
Defrost: None
Product code: BC/BD-2x491BB5-B04 C
- Heat rejection i
- 499.70 kW
- Air flow
- 209,253 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
| Air flow | 209,253 m³/h |
|---|---|
| External surface | 1,218.8 m² |
| Inner volume | 213.8 dm³ |
| Fin material | Aluminium |
| Net weight | 1,430 kg |
| Quantity | 8 |
|---|---|
| Diameter | 910 mm |
| Speed | 840 rpm |
| Power | 22,400 W |
| Supply | 400V/3Ph/50Hz |
| Motor type | AC |
| Poles | 6 |
| Sound pressure | 67.0 dB(A) |
|---|---|
| Sound power | 99.4 dB(A) |
| Energy class | E |
| Inlet | 5" |
|---|---|
| Outlet | 5" |
| BC/BD-2x491BB5-B04 C | None |
|---|
Performance
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)
- 499.700 kW Fluid flow 86.73 m³/h Pressure drop 97.1 kPa above the recommended pressure drop
- Heat rejection · Low speed (Y)
- 408.349 kW Fluid flow 70.87 m³/h Pressure drop 67.9 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.
≈ 1.23 estimate — vendor data irregular here
High speed (Δ)
| Fluid inlet [°C] \ air [°C] | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|
| 35 | 285.81 | not rated | not rated | not rated | not rated | not rated |
| 40 | 499.70 | 287.11 | not rated | not rated | not rated | not rated |
| 45 | 709.76 | 500.10 | 288.27 | not rated | not rated | not rated |
| 50 | 918.58 | 709.34 | 500.52 | 289.35 | not rated | not rated |
| 55 | 1126.88 | 917.37 | 709.07 | 501.03 | 290.44 | not rated |
| 60 | 1334.83 | 1124.89 | 916.44 | 709.06 | 501.75 | 291.63 |
Low speed (Y)
| Fluid inlet [°C] \ air [°C] | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|
| 35 | 235.25 | not rated | not rated | not rated | not rated | not rated |
| 40 | 408.35 | 236.33 | not rated | not rated | not rated | not rated |
| 45 | 577.99 | 408.67 | 237.29 | not rated | not rated | not rated |
| 50 | 746.52 | 577.62 | 409.00 | 238.21 | not rated | not rated |
| 55 | 914.51 | 745.47 | 577.40 | 409.47 | 239.16 | not rated |
| 60 | 1082.24 | 912.83 | 744.72 | 577.46 | 410.16 | 240.22 |
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) | 499.700 | 86.73 | 97.1 |
| Low speed (Y) | 408.349 | 70.87 | 67.9 |
Dimensions
| A | 7550 mm |
|---|---|
| B | 1450 mm |
| C | 2360 mm |
| F | 1150 mm |
| G | 550 mm |
| E | 7100 mm |
| H | 1750 mm |
| I | 2310 mm |
| K | 8050 mm |
| D IN | 5" |
| D OUT | 5" |
| Length | 8050 mm |
|---|---|
| Width | 2360 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.