Chapter 5: Performance, Electrical, and Sound Data

Table 5-2. Electrical Data.

 

CRCW-12

 

 

CRCW-24

 

Electrical Data

 

 

 

 

 

 

FLA

MCA

MFS

FLA

MCA

MFS

 

 

 

 

 

 

 

 

Cooling Only

 

 

 

 

 

 

 

 

 

 

 

 

 

120/1/60

9.5

11.9

15

N/A

N/A

N/A

 

 

 

 

 

 

 

208/1/60

5.7

7.1

15

N/A

N/A

N/A

 

 

 

 

 

 

 

208/3/60

5.7

7.1

15

10.0

12.5

15

 

 

 

 

 

 

 

460/3/60

2.8

3.6

15

4.8

6.0

15

 

 

 

 

 

 

 

575/3/60

2.3

2.9

15

3.9

4.9

15s

 

 

 

 

 

 

Cooling and Humidifier

 

 

 

 

 

 

 

 

 

 

 

 

120/1/60

N/A

N/A

N/A

N/A

N/A

N/A

 

 

 

 

 

 

 

208/1/60

N/A

N/A

N/A

N/A

N/A

N/A

 

 

 

 

 

 

 

208/3/60

N/A

N/A

N/A

19.2

24.0

30

 

 

 

 

 

 

 

460/3/60

N/A

N/A

N/A

9.0

11.2

15

 

 

 

 

 

 

 

575/3/60

N/A

N/A

N/A

7.3

9.1

15

 

 

 

 

 

 

 

NOTE: Standard 1 KAIC rating; optional 65 KAIC rating available.

Table 5-3. Sound Data.

Sound Data for CRCW-12

Sound Pressure — LpA, free field (dBA) in a 121.13 ft.2 (3.43 m3) room at 3.28 (1.0 m) distance

 

 

 

 

 

 

 

 

 

 

 

 

Fan Speed %

Airflow (SCFM)

63

125

250

500

1000

2000

4000

8000

Total dBA

NR Value

 

 

 

 

 

 

 

 

 

 

 

 

50%

1800

15.8

19.7

31.3

35.0

38.8

36.1

25.3

10.9

42.0

39

 

 

 

 

 

 

 

 

 

 

 

 

75%

2150

13.1

41.6

42.7

45.2

48.1

46.2

38.5

23.4

52.6

48

 

 

 

 

 

 

 

 

 

 

 

 

100%

2900

19.6

47.2

49.8

51.4

53.6

51.7

45.0

30.6

58.4

54

 

 

Sound Data for CRCW-24

Sound Pressure — LpA, free field (dBA) in a 146.91 ft.2 (4.16 m3) room at 3.28 (1.0 m) distance

 

 

 

 

 

 

 

 

 

 

 

 

Fan Speed %

Airflow (SCFM)

63

125

250

500

1000

2000

4000

8000

Total dBA

NR Value

 

 

 

 

 

 

 

 

 

 

 

 

50%

4100

29.4

42.5

46.6

48.6

52.3

52.5

41.5

26.1

57.0

54

 

 

 

 

 

 

 

 

 

 

 

 

75%

5000

34.9

49.7

57.3

59.7

62.8

60.5

56.0

40.3

67.0

63

 

 

 

 

 

 

 

 

 

 

 

 

100%

5800

43.0

52.6

61.5

64.0

67.0

64.2

59.6

45.8

71.1

67

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: All sound testing is performed in accordance with ISO 9614-2 Determination of Sound Power Levels. ISO 9614-2 specifies a method for measuring the component of sound intensity that is normal to a measurement surface. The measurement surface is chosen to enclose the noise source(s) so that the sound power level can be determined.

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Black Box crcw-12, crcw24, cold row chilled water(CW) engineering manual Electrical Data, Sound Data

cold row chilled water(CW) engineering manual, crcw24, crcw-12 specifications

The Black Box Cold Row Chilled Water (CW) Engineering Manual focuses on the CRCW-12 and CRCW-24 models, designed for precision cooling in data centers and critical environments. These systems play a vital role in ensuring optimal temperature management, thereby enhancing operational efficiency and equipment longevity.

One of the main features of the CRCW-12 and CRCW-24 units is their high cooling capacity. The CRCW-12 provides a cooling capacity of 12 tons, while the CRCW-24 doubles this capacity with 24 tons. This robust performance makes these units suitable for diverse applications, from small server rooms to large data centers.

Another key characteristic is their modular design, allowing for easy scalability. This flexibility enables users to expand their cooling capabilities as their infrastructure grows, making it an excellent long-term investment. The compact footprint of both models ensures they can fit into tight spaces without sacrificing performance.

In terms of energy efficiency, both CRCW models incorporate advanced technologies such as variable speed fans and compressors. These components adjust their speed according to real-time cooling demand, significantly reducing energy consumption. This smart technology not only lowers operational costs but also contributes to environmental sustainability.

The systems are equipped with state-of-the-art controls that facilitate precise temperature management. These controls enable remote monitoring and management through integrated software platforms, making it easier for facility managers to oversee cooling performance and make necessary adjustments.

Additionally, the CRCW series includes features like dual refrigerant circuits, which increase reliability by allowing the system to maintain operation even if one circuit fails. This redundancy is crucial for mission-critical environments where cooling cannot be compromised.

Noise reduction is another notable characteristic. Both models are designed with sound-dampening technology, making them suitable for environments where low noise levels are essential, such as offices adjacent to data centers.

The use of high-quality materials and components ensures durability and prolonged service life. Regular maintenance is simplified with easily accessible parts, allowing for efficient servicing and lower downtime.

In conclusion, the Black Box CRCW-12 and CRCW-24 cold row chilled water systems are engineered to meet the rigorous demands of modern data centers. Their combination of high cooling capacity, energy efficiency, modular design, and advanced control technologies makes them a preferred choice for reliable and effective temperature management.