BC/BD-391HB1-B04 C
249.87 kW
Dry cooler BC/BD-491BB5-B04 C
Defrost: None
Product code: BC/BD-491BB5-B04 C
- Heat rejection i
- 249.85 kW
- Air flow
- 104,626 m³/h
- Fans
- 4 × ⌀910 mm
Nominal conditions: water 40 → 35 °C, air inlet 25 °C, relative humidity 50 %
Data
| Air flow | 104,626 m³/h |
|---|---|
| External surface | 609.4 m² |
| Inner volume | 97.5 dm³ |
| Fin material | Aluminium |
| Net weight | 797 kg |
| Quantity | 4 |
|---|---|
| Diameter | 910 mm |
| Speed | 840 rpm |
| Power | 11,200 W |
| Supply | 400V/3Ph/50Hz |
| Motor type | AC |
| Poles | 6 |
| Sound pressure | 64.0 dB(A) |
|---|---|
| Sound power | 96.4 dB(A) |
| Energy class | E |
| Inlet | 4" |
|---|---|
| Outlet | 4" |
| BC/BD-491BB5-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)
- 249.850 kW Fluid flow 43.37 m³/h Pressure drop 94.4 kPa above the recommended pressure drop
- Heat rejection · Low speed (Y)
- 204.175 kW Fluid flow 35.43 m³/h Pressure drop 66.0 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 | 142.91 | not rated | not rated | not rated | not rated | not rated |
| 40 | 249.85 | 143.56 | not rated | not rated | not rated | not rated |
| 45 | 354.88 | 250.05 | 144.13 | not rated | not rated | not rated |
| 50 | 459.29 | 354.67 | 250.26 | 144.68 | not rated | not rated |
| 55 | 563.44 | 458.68 | 354.53 | 250.52 | 145.22 | not rated |
| 60 | 667.41 | 562.44 | 458.22 | 354.53 | 250.88 | 145.82 |
Low speed (Y)
| Fluid inlet [°C] \ air [°C] | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|
| 35 | 117.62 | not rated | not rated | not rated | not rated | not rated |
| 40 | 204.18 | 118.17 | not rated | not rated | not rated | not rated |
| 45 | 288.99 | 204.33 | 118.64 | not rated | not rated | not rated |
| 50 | 373.26 | 288.81 | 204.50 | 119.11 | not rated | not rated |
| 55 | 457.26 | 372.73 | 288.70 | 204.74 | 119.58 | not rated |
| 60 | 541.12 | 456.41 | 372.36 | 288.73 | 205.08 | 120.11 |
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) | 249.850 | 43.37 | 94.4 |
| Low speed (Y) | 204.175 | 35.43 | 66.0 |
Dimensions
| A | 7350 mm |
|---|---|
| B | 1450 mm |
| C | 1240 mm |
| F | 1150 mm |
| G | 550 mm |
| E | 7100 mm |
| H | 1750 mm |
| I | 1190 mm |
| K | 7650 mm |
| D IN | 4" |
| D OUT | 4" |
| Length | 7650 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.