BC/BD-t-491OC5-B04 C
275.21 kW
Dry cooler BC/BD-491BB1-B04 C
Defrost: None
Product code: BC/BD-491BB1-B04 C
- Heat rejection i
- 275.33 kW
- Air flow
- 102,872 m³/h
- Fans
- 4 × ⌀910 mm
Nominal conditions: water 40 → 35 °C, air inlet 25 °C, relative humidity 50 %
Data
| Air flow | 102,872 m³/h |
|---|---|
| External surface | 720.7 m² |
| Inner volume | 97.5 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 | 64.0 dB(A) |
|---|---|
| Sound power | 96.6 dB(A) |
| Energy class | E |
| Inlet | 4" |
|---|---|
| Outlet | 4" |
| BC/BD-491BB1-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)
- 275.328 kW Fluid flow 47.78 m³/h Pressure drop 112.0 kPa above the recommended pressure drop
- Heat rejection · Low speed (Y)
- 222.091 kW Fluid flow 38.54 m³/h Pressure drop 76.6 kPa above the recommended pressure drop
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 | 158.25 | not rated | not rated | not rated | not rated | not rated |
| 40 | 275.33 | 158.92 | not rated | not rated | not rated | not rated |
| 45 | 390.15 | 275.43 | 159.51 | not rated | not rated | not rated |
| 50 | 504.24 | 389.74 | 275.58 | 160.07 | not rated | not rated |
| 55 | 617.98 | 503.34 | 389.47 | 275.79 | 160.65 | not rated |
| 60 | 731.53 | 616.61 | 502.64 | 389.35 | 276.14 | 161.29 |
Low speed (Y)
| Fluid inlet [°C] \ air [°C] | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|
| 35 | 128.72 | not rated | not rated | not rated | not rated | not rated |
| 40 | 222.09 | 129.24 | not rated | not rated | not rated | not rated |
| 45 | 313.42 | 222.15 | 129.73 | not rated | not rated | not rated |
| 50 | 404.09 | 313.06 | 222.25 | 130.20 | not rated | not rated |
| 55 | 494.45 | 403.33 | 312.83 | 222.45 | 130.70 | not rated |
| 60 | 584.64 | 493.31 | 402.77 | 312.78 | 222.79 | 131.28 |
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) | 275.328 | 47.78 | 112.0 |
| Low speed (Y) | 222.091 | 38.54 | 76.6 |
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.