BC/BD-2x791FB5-B04 C
771.19 kW
Dry cooler BC/BD-2x491GD1-B04 C
Defrost: None
Product code: BC/BD-2x491GD1-B04 C
- Heat rejection i
- 772.06 kW
- Air flow
- 206,507 m³/h
- Fans
- 8 × ⌀910 mm
Nominal conditions: water 40 → 35 °C, air inlet 25 °C, relative humidity 50 %
Data
| Air flow | 206,507 m³/h |
|---|---|
| External surface | 3,294.7 m² |
| Inner volume | 433.1 dm³ |
| Fin material | Aluminium |
| Net weight | 2,134 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 | 99.6 dB(A) |
| Energy class | E |
| Inlet | 6" |
|---|---|
| Outlet | 6" |
| BC/BD-2x491GD1-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)
- 772.059 kW Fluid flow 133.88 m³/h Pressure drop 22.6 kPa
- Heat rejection · Low speed (Y)
- 594.864 kW Fluid flow 103.16 m³/h Pressure drop 14.1 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.
≈ 1.23 estimate — vendor data irregular here
High speed (Δ)
| Fluid inlet [°C] \ air [°C] | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|
| 35 | 447.58 | not rated | not rated | not rated | not rated | not rated |
| 40 | 772.06 | 449.89 | not rated | not rated | not rated | not rated |
| 45 | 1085.73 | 771.25 | 451.88 | not rated | not rated | not rated |
| 50 | 1395.77 | 1082.33 | 770.57 | 453.74 | not rated | not rated |
| 55 | 1704.06 | 1389.93 | 1079.49 | 770.36 | 455.63 | not rated |
| 60 | 2011.38 | 1695.92 | 1385.08 | 1077.54 | 770.79 | 457.87 |
Low speed (Y)
| Fluid inlet [°C] \ air [°C] | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|
| 35 | 348.72 | not rated | not rated | not rated | not rated | not rated |
| 40 | 594.86 | 350.56 | not rated | not rated | not rated | not rated |
| 45 | 831.48 | 594.08 | 352.13 | not rated | not rated | not rated |
| 50 | 1064.91 | 828.69 | 593.52 | 353.63 | not rated | not rated |
| 55 | 1296.88 | 1060.30 | 826.47 | 593.40 | 355.24 | not rated |
| 60 | 1528.01 | 1290.52 | 1056.57 | 825.05 | 593.87 | 357.13 |
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) | 772.059 | 133.88 | 22.6 |
| Low speed (Y) | 594.864 | 103.16 | 14.1 |
Dimensions
| A | 10150 mm |
|---|---|
| B | 1450 mm |
| C | 2360 mm |
| F | 1150 mm |
| G | 550 mm |
| E | 9700 mm |
| H | 2400 mm |
| I | 2310 mm |
| K | 10650 mm |
| D IN | 6" |
| D OUT | 6" |
| Length | 10650 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.