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Page 12
724-746-5500 | blackbox.com
Chapter 5: Performance, Electrical, and Sound Data
Table 5-2. Electrical Data.
Electrical Data
CRCW-12 CRCW-24
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 m
3
) 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 m
3
) 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.