BC/BD-480OB5-B01 C
260.49 kW
Dry cooler BC/BD-491DB5-B04 C
Defrost: None
Product code: BC/BD-491DB5-B04 C
- Heat rejection i
- 260.17 kW
- Air flow
- 100,834 m³/h
- Fans
- 4 × ⌀910 mm
Nominal conditions: water 40 → 35 °C, air inlet 25 °C, relative humidity 50 %
Data
| Air flow | 100,834 m³/h |
|---|---|
| External surface | 579.6 m² |
| Inner volume | 139.8 dm³ |
| Fin material | Aluminium |
| Net weight | 815 kg |
| Quantity | 4 |
|---|---|
| Diameter | 910 mm |
| Speed | 840 rpm |
| Power | 11,200 W |
| Supply | 400V/3Ph/50Hz |
| Motor type | AC |
| Poles | 6 |
| Sound pressure | 65.0 dB(A) |
|---|---|
| Sound power | 96.9 dB(A) |
| Energy class | E |
| Inlet | 4" |
|---|---|
| Outlet | 4" |
| BC/BD-491DB5-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)
- 260.168 kW Fluid flow 45.15 m³/h Pressure drop 37.2 kPa
- Heat rejection · Low speed (Y)
- 208.135 kW Fluid flow 36.13 m³/h Pressure drop 25.0 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 | 147.48 | not rated | not rated | not rated | not rated | not rated |
| 40 | 260.17 | 148.42 | not rated | not rated | not rated | not rated |
| 45 | 370.64 | 260.57 | 149.26 | not rated | not rated | not rated |
| 50 | 480.40 | 370.56 | 260.97 | 150.03 | not rated | not rated |
| 55 | 589.83 | 479.88 | 370.57 | 261.41 | 150.81 | not rated |
| 60 | 699.07 | 588.86 | 479.51 | 370.72 | 261.97 | 151.61 |
Low speed (Y)
| Fluid inlet [°C] \ air [°C] | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|
| 35 | 118.94 | not rated | not rated | not rated | not rated | not rated |
| 40 | 208.14 | 119.69 | not rated | not rated | not rated | not rated |
| 45 | 295.32 | 208.45 | 120.38 | not rated | not rated | not rated |
| 50 | 381.87 | 295.25 | 208.78 | 121.02 | not rated | not rated |
| 55 | 468.10 | 381.44 | 295.28 | 209.17 | 121.68 | not rated |
| 60 | 554.16 | 467.33 | 381.17 | 295.45 | 209.68 | 122.39 |
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) | 260.168 | 45.15 | 37.2 |
| Low speed (Y) | 208.135 | 36.13 | 25.0 |
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.