BC/BD-t-2x291OC5-B04 C
283.35 kW
Dry cooler BC/BD-491DB1-B04 C
Defrost: None
Product code: BC/BD-491DB1-B04 C
- Heat rejection i
- 283.65 kW
- Air flow
- 98,806 m³/h
- Fans
- 4 × ⌀910 mm
Nominal conditions: water 40 → 35 °C, air inlet 25 °C, relative humidity 50 %
Model nomenclature
How to read the code of this model.
-
A
Series: BC/BD — BC = vertical, BD = horizontal dry cooler (air flow bottom to top).
-
D
Number of fans per row: 4 — Digit 1-9; total fans = fan rows x this digit.
-
E
Fan diameter: 91 — Ø910 mm
-
G
Coil tube rows (2nd dimensional letter): B — 3 tube rows
-
H
Fin spacing: 1 — 2.1 mm
-
I
Generation code: B — generation B
-
J
Fan data (fan motor code): 04 — three-phase 400 V 50 Hz, 6-pole AC fan (in this series)
Data
| Air flow | 98,806 m³/h |
|---|---|
| External surface | 684.1 m² |
| Inner volume | 139.8 dm³ |
| Fin material | Aluminium |
| Net weight | 832 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 | 97.0 dB(A) |
| Energy class | E |
| Inlet | 4" |
|---|---|
| Outlet | 4" |
| BC/BD-491DB1-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)
- 283.650 kW Fluid flow 49.23 m³/h Pressure drop 43.4 kPa
- Heat rejection · Low speed (Y)
- 223.920 kW Fluid flow 38.87 m³/h Pressure drop 28.5 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 | 161.68 | not rated | not rated | not rated | not rated | not rated |
| 40 | 283.65 | 162.68 | not rated | not rated | not rated | not rated |
| 45 | 402.98 | 284.00 | 163.53 | not rated | not rated | not rated |
| 50 | 521.45 | 402.77 | 284.36 | 164.36 | not rated | not rated |
| 55 | 639.54 | 520.71 | 402.67 | 284.80 | 165.18 | not rated |
| 60 | 757.38 | 638.26 | 520.18 | 402.77 | 285.39 | 166.05 |
Low speed (Y)
| Fluid inlet [°C] \ air [°C] | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|
| 35 | 128.82 | not rated | not rated | not rated | not rated | not rated |
| 40 | 223.92 | 129.59 | not rated | not rated | not rated | not rated |
| 45 | 316.65 | 224.14 | 130.28 | not rated | not rated | not rated |
| 50 | 408.61 | 316.42 | 224.41 | 130.95 | not rated | not rated |
| 55 | 500.21 | 407.94 | 316.32 | 224.76 | 131.63 | not rated |
| 60 | 591.60 | 499.13 | 407.51 | 316.42 | 225.29 | 132.40 |
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) | 283.650 | 49.23 | 43.4 |
| Low speed (Y) | 223.920 | 38.87 | 28.5 |
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.