BC/BD-t-2x491OB1-B04 C
519.78 kW
Dry cooler BC/BD-2x491DB5-B04 C
Defrost: None
Product code: BC/BD-2x491DB5-B04 C
- Heat rejection i
- 520.34 kW
- Air flow
- 201,668 m³/h
- Fans
- 8 × ⌀910 mm
Nominal conditions: water 40 → 35 °C, air inlet 25 °C, relative humidity 50 %
Data
| Air flow | 201,668 m³/h |
|---|---|
| External surface | 1,159.2 m² |
| Inner volume | 298.3 dm³ |
| Fin material | Aluminium |
| Net weight | 1,467 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 | 99.9 dB(A) |
| Energy class | E |
| Inlet | 5" |
|---|---|
| Outlet | 5" |
| BC/BD-2x491DB5-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)
- 520.336 kW Fluid flow 90.31 m³/h Pressure drop 40.1 kPa
- Heat rejection · Low speed (Y)
- 416.270 kW Fluid flow 72.25 m³/h Pressure drop 26.9 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 | 294.96 | not rated | not rated | not rated | not rated | not rated |
| 40 | 520.34 | 296.85 | not rated | not rated | not rated | not rated |
| 45 | 741.28 | 521.14 | 298.52 | not rated | not rated | not rated |
| 50 | 960.81 | 741.13 | 521.93 | 300.06 | not rated | not rated |
| 55 | 1179.66 | 959.75 | 741.14 | 522.82 | 301.62 | not rated |
| 60 | 1398.13 | 1177.72 | 959.02 | 741.44 | 523.93 | 303.21 |
Low speed (Y)
| Fluid inlet [°C] \ air [°C] | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|
| 35 | 237.87 | not rated | not rated | not rated | not rated | not rated |
| 40 | 416.27 | 239.38 | not rated | not rated | not rated | not rated |
| 45 | 590.65 | 416.90 | 240.75 | not rated | not rated | not rated |
| 50 | 763.74 | 590.51 | 417.55 | 242.05 | not rated | not rated |
| 55 | 936.20 | 762.88 | 590.55 | 418.33 | 243.36 | not rated |
| 60 | 1108.33 | 934.65 | 762.35 | 590.90 | 419.35 | 244.79 |
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) | 520.336 | 90.31 | 40.1 |
| Low speed (Y) | 416.270 | 72.25 | 26.9 |
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.