BC/BD-791EC1-B04 C
470.58 kW
Dry cooler BC/BD-2x680FD1-B03 C
Defrost: None
Product code: BC/BD-2x680FD1-B03 C
- Heat rejection i
- 470.60 kW
- Air flow
- 102,873 m³/h
- Fans
- 12 × ⌀800 mm
Nominal conditions: water 40 → 35 °C, air inlet 25 °C, relative humidity 50 %
Data
| Air flow | 102,873 m³/h |
|---|---|
| External surface | 3,420.1 m² |
| Inner volume | 646.5 dm³ |
| Fin material | Aluminium |
| Net weight | 2,536 kg |
| Quantity | 12 |
|---|---|
| Diameter | 800 mm |
| Speed | 435 rpm |
| Power | 3,800 W |
| Supply | 400V/3Ph/50Hz |
| Motor type | AC |
| Poles | 12 |
| Sound pressure | 42.0 dB(A) |
|---|---|
| Sound power | 75.0 dB(A) |
| Energy class | B |
| Inlet | 5" |
|---|---|
| Outlet | 5" |
| BC/BD-2x680FD1-B03 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)
- 470.604 kW Fluid flow 81.63 m³/h Pressure drop 58.1 kPa
- Heat rejection · Low speed (Y)
- 350.750 kW Fluid flow 60.84 m³/h Pressure drop 34.5 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 | 294.58 | not rated | not rated | not rated | not rated | not rated |
| 40 | 470.60 | 293.81 | not rated | not rated | not rated | not rated |
| 45 | 641.52 | 468.36 | 293.24 | not rated | not rated | not rated |
| 50 | 810.81 | 637.97 | 466.59 | 292.96 | not rated | not rated |
| 55 | 979.37 | 806.01 | 635.13 | 465.42 | 293.09 | not rated |
| 60 | 1147.53 | 973.34 | 802.16 | 633.20 | 465.02 | 293.73 |
Low speed (Y)
| Fluid inlet [°C] \ air [°C] | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|
| 35 | 221.78 | not rated | not rated | not rated | not rated | not rated |
| 40 | 350.75 | 221.09 | not rated | not rated | not rated | not rated |
| 45 | 475.98 | 348.92 | 220.57 | not rated | not rated | not rated |
| 50 | 600.06 | 473.16 | 347.47 | 220.29 | not rated | not rated |
| 55 | 723.62 | 596.29 | 470.91 | 346.51 | 220.33 | not rated |
| 60 | 846.90 | 718.92 | 593.28 | 469.37 | 346.16 | 220.80 |
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) | 470.604 | 81.63 | 58.1 |
| Low speed (Y) | 350.750 | 60.84 | 34.5 |
Dimensions
| A | 11050 mm |
|---|---|
| B | 1450 mm |
| C | 2360 mm |
| F | 1150 mm |
| G | 550 mm |
| E | 10600 mm |
| H | 1750 mm |
| I | 2310 mm |
| K | 11550 mm |
| D IN | 5" |
| D OUT | 5" |
| Length | 11550 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.