BC/BD-2X663BB5-B19 C
311.77 kW
Dry cooler BC/BD-491HB5-B04 C
Defrost: None
Product code: BC/BD-491HB5-B04 C
- Heat rejection i
- 311.83 kW
- Air flow
- 108,947 m³/h
- Fans
- 4 × ⌀910 mm
Nominal conditions: water 40 → 35 °C, air inlet 25 °C, relative humidity 50 %
Data
| Air flow | 108,947 m³/h |
|---|---|
| External surface | 794.9 m² |
| Inner volume | 183.1 dm³ |
| Fin material | Aluminium |
| Net weight | 979 kg |
| Quantity | 4 |
|---|---|
| Diameter | 910 mm |
| Speed | 840 rpm |
| Power | 11,200 W |
| Supply | 400V/3Ph/50Hz |
| Motor type | AC |
| Poles | 6 |
| Sound pressure | 63.0 dB(A) |
|---|---|
| Sound power | 96.0 dB(A) |
| Energy class | E |
| Inlet | 4" |
|---|---|
| Outlet | 4" |
| BC/BD-491HB5-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)
- 311.828 kW Fluid flow 54.12 m³/h Pressure drop 68.1 kPa
- Heat rejection · Low speed (Y)
- 251.074 kW Fluid flow 43.58 m³/h Pressure drop 46.4 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 | 180.86 | not rated | not rated | not rated | not rated | not rated |
| 40 | 311.83 | 181.31 | not rated | not rated | not rated | not rated |
| 45 | 440.13 | 311.55 | 181.72 | not rated | not rated | not rated |
| 50 | 567.56 | 439.17 | 311.33 | 182.13 | not rated | not rated |
| 55 | 694.60 | 565.94 | 438.35 | 311.22 | 182.57 | not rated |
| 60 | 821.40 | 692.31 | 564.55 | 437.77 | 311.30 | 183.10 |
Low speed (Y)
| Fluid inlet [°C] \ air [°C] | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|
| 35 | 146.72 | not rated | not rated | not rated | not rated | not rated |
| 40 | 251.07 | 147.10 | not rated | not rated | not rated | not rated |
| 45 | 353.07 | 250.84 | 147.44 | not rated | not rated | not rated |
| 50 | 454.29 | 352.27 | 250.67 | 147.79 | not rated | not rated |
| 55 | 555.15 | 452.96 | 351.64 | 250.62 | 148.20 | not rated |
| 60 | 655.81 | 553.30 | 451.88 | 351.24 | 250.76 | 148.67 |
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) | 311.828 | 54.12 | 68.1 |
| Low speed (Y) | 251.074 | 43.58 | 46.4 |
Dimensions
| A | 9950 mm |
|---|---|
| B | 1450 mm |
| C | 1240 mm |
| F | 1150 mm |
| G | 550 mm |
| E | 9700 mm |
| H | 2400 mm |
| I | 1190 mm |
| K | 10250 mm |
| D IN | 4" |
| D OUT | 4" |
| Length | 10250 mm |
|---|---|
| Width | 1240 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.