Greenheck Fan manual AXPage90-Header275 9 Blades AX 90-275 9 Blades

AXPage90-Header275 9 Blades AX 90-275 9Blades

Total

Impeller Diameter = 36.38 inches (924 mm)

ft/min = cfm / 7.22

Outlet Velocity m/s = m³/s / 0.67

Pressure

Tip Speed

ft/min = rpm X 9.52

m/s = rpm X 2.90

95

93

93

93

Air density = 1.2 kg/m³

Air density = 0.075 lbs/ft³

9094

94

90

91

Volume

Peak Absorbed Power [Bhp/kW (60 Hz), kW (50 Hz)]

Pitch Angle º

	rpm	5	10	15	20	25	30	35
1770	(Bhp/kW)	5.03/3.75	8.89/6.63	13.0/9.66	17.4/13.0	22.6/16.9	29.1/21.7	37.2/27.8
1170	(Bhp/kW)	1.45/1.08	2.57/1.92	3.74/2.79	5.02/3.75	6.53/4.87	8.41/6.27	10.8/8.02
1450	(kW)	2.06	3.65	5.31	7.13	9.28	11.9	15.3
950 (kW)		0.58	1.03	1.49	2.01	2.61	3.36	4.29

Sound Power A-Weighted [LwA] Sound Pressure [dBA]

Inlet Sound

rpm LwA dBA

1770 +11 -0.5

1170 - -11.5

1450 +5 -6.5

950 -5 -16.5

Performance shown is for installation Type B: Free inlet, Ducted outlet. Performance ratings do not include the effects of appurtenances in the airstream. The AMCA Certified Ratings Seal applies to air performance ratings only.

Sound power level ratings are shown in decibels, referred to 10-12 watts calculated per AMCA Standard 301. Values shown are for inlet LwA sound power levels for 100%, 50% and 0% of peak pressure in Installation Type B: Free inlet, Ducted outlet. dBA sound pressure values are weighted with 11.5 dB attenuation for each octave band at 5 feet.

39