Mixed Flow Fans Belt and Direct Drive Models QEI-L, QEI, QEID May 2012
Quiet & Efficient, Inline Mixed Flow Fans Model QEI-L – Belt Drive Mixed flow inline fans can be used for supply, exhaust, or return air installations. Our patented design excels in commercial applications where low sound is critical. In addition, Greenheck’s mixed flow fans are more efficient than comparably sized tubular centrifugal and vane axial fans, thus reducing the required motor horsepower and lowering operating costs.
Standard Construction Housing Slip-Fit Duct Connection (QEI-I/II & QEID) Tubular housings are constructed of welded steel to eliminate air leakage. Integral straightening vanes are constructed from steel and welded into place. Inlets and outlets are designed with extended collars for slip-fit duct connections as standard. QEI-L is flanged as standard. Companion flanges can be ordered for slip fit connections.
Value Added Features Quality Assurance Test Before shipment, all Greenheck mixed flow fans are tested at the design speed after final assembly. QEI-L fans are checked for amp draw and the levels are recorded. QEI-I/II and QEID fans are subjected to a complete vibration analysis. The maximum allowable vibration on a QEI-I/II at the fan bearings is 0.15 in/sec. peak velocity for the specified RPM. QEID maximum vibration is 0.08 in/sec. peak velocity on the fan housing for the specified RPM.
Inlet and Outlet Sound Power Levels All Greenheck mixed flow fans have AMCA licensed sound power levels for both the fan inlet and outlet. Application and installation determines which sound power reading (inlet, outlet, or both) is critical. The differences between the generated sound from the inlet and outlet are important and noticeable. AMCA licensed inlet and outlet sound power data provides complete sound information to select a fan based on the acoustical requirements.
Design & Performance Mixed Flow: Axial/Centrifugal Hybrid Centrifugal Static Pressure A mixed flow wheel is a hybrid between an axial propeller and a centrifugal wheel. The result is a design that combines the best axial and centrifugal properties: highly efficient air movement, increased pressure capabilities, extremely low sound levels, and a steep fan performance curve. To further enhance the fan’s performance, straightening vanes are incorporated in the housing.
Wheel Characteristics Belt Drive: Fan Class Class I and II fans have different wheel designs with different performance characteristics. Class I mixed flow wheels are optimized for performances involving low pressures and high volumes. Class II wheels are designed for a steeper fan curve with higher pressure capabilities. This is illustrated in the graph with the two different class wheels plotted at identical fan RPMs.
Optional Features Sure-Aire™ The Sure-Aire™ flow monitoring system measures fan flow within a 3% accuracy. Unlike traditional flow probes mounted in the fan venturi that create a system effect hindering fan performance, Sure-Aire™ does not interfere with airflow and will not impact the fan’s air or sound performance. This option is available on all mixed flow fan models and ships completely assembled from our factory.
Optional Two-coat Paint System In 1972, Greenheck took the lead as the first commercial and industrial fan manufacturer to introduce electrostatic powder coatings. Today, Greenheck continues to lead by being the first to offer a superior zinc-rich powder basecoat and powder coating finish. This zinc-rich basecoat technology is used extensively outside the HVAC industry to protect bridge beams, automotive components and other heavy-gauge steel products.
Certifications & Listings Tau Bot psi 7880 7090 6300 5510 4720 3930 3140 2350 1560 770 -20 Y Z Seismic Certification X The International Building Code (IBC) has been adopted at the state and local level throughout the United States. With the adoption of this code, comes the introduction of standards intended to improve the performance and design of non-structural systems subject to seismic events.
Belt Drive versus Direct Drive Belt Drive Advantages • Lower sound levels • Motor out of the airstream for easy access • Motor size may be changed to accommodate possible future air capacity requirements • Final system balancing accomplished by changing drives Direct Drive Advantages • Fewer wear components and less maintenance, no shaft, bearings, pulleys, or belts • More compact than equivalent belt drive size • Motor in airstream for increased motor efficiency and cooling • Equal loading between mountin
Belt Drive Mounting Configurations QEI-I/II Sizes 9-27 and all QEI-L Universal Mounting Optional Mounting Rails Fig. 1 Fig. 2 QEI-I/II models sizes 9-27 and all QEI-L models can be mounted horizontally or vertically. For ease of installation, eight mounting brackets are welded on each fan. These eight brackets along with standard mounting supports provide for Greenheck’s Universal Mounting System. Motor positions are viewed from the discharge end. Fig.
Roof Upblast & Spark Resistant Construction Roof Upblast Models QEI-I/II sizes 9 through 54 and model QEID sizes 12 through 54, are available in roof upblast configuration. The roof upblast configuration is ideal for exhausting contaminants away from a building to prevent roof damage and re-entrainment of exhaust air. Both QEI-I/II roof upblast models have the high temperature UL rating and can be used for emergency smoke exhaust applications.
Accessories Availability Motor Cover Hinged Access Door QEI-L QEI-I QEI-II A weatherproof motor cover shields the motor components from dust, dirt and moisture for indoor or outdoor installations. Motor covers also serve as a personnel guards and meet OSHA standards. Hinged access doors provide an opening through the fan housing for cleaning or visual inspection of the wheel. Bolted access door is standard. Std.
Exploded View Motor Cover Companion Flange Slip Fit Connection (Standard on QEI-I/II) Inlet Guard Outlet Flange (Standard on QEI-L) Outlet Guard Bolted Access Door (Standard) Spring Base Isolator Neoprene Base Isolator Inlet Flange (Standard on QEI-L) Companion Flange Spring Hanging Isolator Mounting Rails 15
Direct Drive Selection Charts The quick select charts below and on the following page are a convenient method for sizing the fan required for a specific performance. Colored bands for a given size in each chart represent the entire operating range available for that size and speed. For QEID performance pages showing AMCA Licensed data for sound and air performance please refer to the Model QEID Sound and Air Performance Supplement found at www.greenheck.
QEID Dimensional Data 8 6 870 RPM (60 Hz) Static Pressure (in. wg) Model QEID 36—54 4 2 0 36 10 40 20 30 44 40 49 54 50 100 Volume (cfm x 1000) Size Slip Fit O.D. Length * Length varies with motor frame size. Refer to Length table shown. ** Weight is for unit only and does not include motor. 12 15 16 18 20 22 24 27 30 33 36 40 44 49 54 Slip Fit O.D. inches mm 17.13 435 20.88 530 23.00 584 25.38 645 27.81 706 30.88 784 34.00 864 37.44 951 41.63 1057 45.75 1162 50.56 1284 55.
QEI Dimensional Data QEI-L QEI Airflow Height Airflow Height Slip Fit O.D. Height Length Length QEI-L Size 18 Slip-Fit O.D. inches (mm) Length QEI Class I Height inches (mm) Slip-Fit O.D. inches (mm) Length Height inches (mm) QEI Class II Length Height inches (mm) 9 NA NA NA 17.13 (435) NA NA 28.5 (724) 36.5 (927) 12 17.5 (445) 26.5 (673) 37.5 (953) 17.13 (435) 28.5 (724) 36.5 (927) 30.5 (775) 36.5 (927) 15 21.13 (537) 29.0 (737) 41.5 (1054) 20.
QEI-9 Class II 10 Performance Data 4000 Specification Data Minimum Motor Starting hp 1/3 hp .25 kW Wheel Diameter 15 in. 381 mm 170 lbs. 77 kg. 70% WOV 2 15 10 Static Pressure (in. wg) Static Pressure (Pa x 100) 184T Approximate Weight (Less Motor & Drives) RPM BHP % WOV 3 Density 0.075 lb/ft 3 Density 1.
QEI-12 Class I & QEI-L Performance Data 10 3800 3800 7½ 5 50% WOV RPM BHP % WOV 3 Density 0.075 lb/ft Density 1.2 kg/m3 60% WOV 20 15 10 6 2 1½ 4 1 ¾ 5 ½ 2 70% WOV CU RVE 3 TH EL EF TO FT HIS SY STE M Maximum QEI-L 184T Motor QEI 184T Frame Size Minimum Motor 1/3 hp .25 kW Starting hp Wheel Diameter 15 in. 381 mm Approximate Weight QEI-L 120 lbs. 55 kg. (Less Motor & Drives) QEI 160 lbs. 73 kg. Maximum Bhp = (Fan RPM / 2301)3 Outlet Velocity (FPM) = CFM / 1.
QEI-12 Class II 12 Performance Data 4000 25 1/3 hp Wheel Diameter 15 in. 381 mm 180 lbs. 82 kg. 15 10 3 6 2 1½ 4 1 ¾ Maximum Bhp = (Fan RPM / 2345)3 5 Outlet Velocity (FPM) = CFM / 1.56 ½ 2 Tip Speed (FPM) = Fan RPM x 3.93 DO 0 % WOV = (CFM x 100) / (Fan RPM x 1.16) 0 70% WOV T NO 0 40 80% WOV 00 34 00 28 00 TO Approximate Weight (Less Motor & Drives) .25 kW 8 LE FT OF TH IS SY ST EM CU RVE Minimum Motor Starting hp 20 TH E 184T 60% WOV 10 Static Pressure (in.
QEI-15 Class I & QEI-L QEI-15I Performance Data 6 5 14 2721 2721 60% WOV 3 SY ST EM CU RVE TH IS 3 2 ½ 1 2 ¼ 0 0 0 23 31 OF 1 4 80% WOV TH EL EF T 6 2 20 37 90% WOV TO 8 4 16 17 LE CT 10 21 Maximum QEI-L 184T Motor QEI 213T Frame Size Minimum Motor 1/3 hp .25 kW Starting hp Wheel Diameter 18.25 in. 464 mm Approximate Weight QEI-L 140 lbs. 64 kg. (Less Motor & Drives) QEI 190 lbs. 82 kg. Maximum Bhp = (Fan RPM / 1617)3 Outlet Velocity (FPM) = CFM / 2.
QEI-15 Class II QEI-15II 10 Performance Data Maximum Fan RPM 3445 RPM BHP % WOV 3 Density 0.075 lb/ft Density 1.2 kg/m3 50% WOV 7½ 60% WOV 9 10 5 18.25 in. 464 mm Approximate Weight (Less Motor & Drives) 220 lbs. 100 kg. 10 UR VE FT HIS SY ST EM C Wheel Diameter 6 3 5 2 4 3 5 Tip Speed (FPM) = Fan RPM x 4.78 DO 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 2.20) 02 99 166 SE 1 90% WOV 24 20 LE CT 2 Outlet Velocity (FPM) = CFM / 2.
QEI-16 Class I & QEI-L QEI-16I Performance Data 7 2300 2483 5 16 RPM BHP % WOV 3 Density 0.075 lb/ft Density 1.2 kg/m3 50% WOV 7½ 60% WOV 6 14 6 3 2 4 1 2 YS TEM CU RVE 1½ ¾ 1/3 0 0 0 TH EL EF TO FT HIS S 8 4 DO T NO S 80% WOV 23 23 00 71 20 00 90% WOV TO 10 3 15 87 EL EC T 12 83 Maximum QEI-L 184T Motor QEI 213T Frame Size Minimum Motor 1/3 hp .25 kW Starting hp Wheel Diameter 20 in. 508 mm Approximate Weight QEI-L 160 lbs. 73 kg.
QEI-16 Class II QEI-16II Performance Data 12 Maximum Fan RPM 11 3145 25 20 in. 508 mm 240 lbs. 109 kg. 10 CU RVE 7 6 5 4 3 2 Maximum Bhp = (Fan RPM / 1430) 1 5 Outlet Velocity (FPM) = CFM / 2.79 2 1 Tip Speed (FPM) = Fan RPM x 5.24 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 2.89) 80% WOV 24 44 DO T NO 62 18 01 S 14 30 10 9 8 7 6 5 4 3 2 1 90% WOV 20 TO 3 3 EL EC T Approximate Weight (Less Motor & Drives) 15 5 SY ST EM Wheel Diameter 8 45 .
QEI-18 Class I & QEI-L QEI-18I Performance Data 7 2232 2232 7½ 16 6 60% WOV 5 6 CU RVE SY ST EM 80% WOV HIS 3 TH EL EF TO FT 8 4 3 1½ 2 ¾ 4 1 2 1/3 0 0 0 20 50 17 29 TO 10 DO 1 T NO 90% WOV 13 EL EC T 12 32 Maximum QEI-L 215T Motor QEI 215T Frame Size Minimum Motor 1/3 hp .25 kW Starting hp Wheel Diameter 22.5 in. 565 mm Approximate Weight QEI-L 190 lbs. 87 kg. (Less Motor & Drives) QEI 260 lbs. 118 kg. Maximum Bhp = (Fan RPM / 1199)3 Outlet Velocity (FPM) = CFM / 3.
QEI-18 Class II QEI-18II Performance Data 12 Maximum Fan RPM 11 15 10 2777 60% WOV 25 Specification Data RPM BHP % WOV 3 Density 0.075 lb/ft 3 Density 1.2 kg/m 50% WOV 10 310 lbs. 141 kg. 10 UR VE YS TE MC Approximate Weight (Less Motor & Drives) 15 HIS S 565 mm 6 5 3 4 2 5 Outlet Velocity (FPM) = CFM / 3.45 2 SE LE CT Maximum Bhp = (Fan RPM / 1219) 1 1 Tip Speed (FPM) = Fan RPM x 5.83 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 3.
QEI-20 Class I & QEI-L QEI-20 Class 1 Performance Data 6 1900 2027 60% WOV 5 5 HIS SY STE MC 3 FT 2 TO TH EL EF 46 2 1 73 12 2 ½ DO 0 0 0 87 SE LE CT 1 1 90% WOV 14 TO 4 80% WOV 00 6 3 70% WOV 27 20 8 4 17 Static Pressure (Pa x 100) 10 19 Maximum QEI-L 215T Motor QEI 215T Frame Size Minimum Motor 1/3 hp .25 kW Starting hp Wheel Diameter 24.5 in. 622 mm Approximate Weight QEI-L 230 lbs. 105 kg. (Less Motor & Drives) QEI 310 lbs. 141 kg.
QEI-20 Class II QEI-20II 10 Performance Data 15 10 2517 7½ Approximate Weight (Less Motor & Drives) 360 lbs. 163 kg. 10 Maximum Bhp = (Fan RPM / 1038) 3 YST EM CU RVE 622 mm 5 6 5 3 4 3 5 1½ 2 Outlet Velocity (FPM) = CFM / 4.14 1 Tip Speed (FPM) = Fan RPM x 6.41 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 5.07) 80% WOV HIS S 24.5 in. Static Pressure (in. wg) Wheel Diameter 15 17 .
QEI-22 Class I & QEI-L QEI-22I Performance Data 6 1800 1839 14 10 7½ RPM BHP % WOV Density 0.075 lb/ft3 Density 1.2 kg/m3 50% WOV 60% WOV 5 12 UR VE OF TH IS SY ST E MC 3 2 2 4 14 65 ½ 0 0 0 DO 36 10 SE LE CT 1 90% WOV 12 TO 1 2 80% WOV 77 6 3 LE FT 8 4 TH E 10 70% WOV 16 Maximum QEI-L 215T Motor QEI 254T Frame Size Minimum Motor 1/3 hp .25 kW Starting hp Wheel Diameter 27 in. 686 mm Approximate Weight QEI-L 270 lbs. 123 kg. (Less Motor & Drives) QEI 370 lbs. 168 kg.
QEI-22 Class II QEI-22II 10 Performance Data Maximum Fan RPM 15 2265 20 10 60% WOV 70% WOV 420 lbs. 191 kg. 10 CU RVE EF TO FT HIS SY STE M 686 mm 4 2 17 00 5 2 SE LE CT Maximum Bhp = (Fan RPM / 869)3 85 10 95 NO T Outlet Velocity (FPM) = CFM / 5.12 90% WOV 14 TO 27 in. 5 41 Wheel Diameter Approximate Weight (Less Motor & Drives) 6 21 .25 kW 80% WOV 65 1/3 hp 15 71 18 Minimum Motor Starting hp 7½ Static Pressure (in.
QEI-24 Class I & QEI-L QEI-24I Performance Data 6 14 MC UR VE SY STE 3 12 29 0 0 0 37 EC T 1 2 ¾ DO T NO 90% WOV 10 TO 1½ 49 2 4 TH EL EF TO FT HIS 3 80% WOV 55 6 5 16 8 4 50 14 407 1 Static Pressure (Pa x 100) 10 70% WOV 15 Maximum QEI-L 215T Motor QEI 254T Frame Size Minimum Motor 1/3 hp .25 kW Starting hp Wheel Diameter 30 in. 762 mm Approximate Weight QEI-L 400 lbs. 182 kg. (Less Motor & Drives) QEI 470 lbs. 213 kg.
QEI-24 Class II QEI-24II 10 Performance Data 2036 .55 kW Wheel Diameter 30 in. 762 mm 550 lbs. 249 kg. 10 6 7½ 5 5 4 3 Maximum Bhp = (Fan RPM / 729) 5 2 Outlet Velocity (FPM) = CFM / 6.21 1 Tip Speed (FPM) = Fan RPM x 7.85 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 9.
QEI-27 Class I & QEI-L QEI-27I Performance Data 6 14 YS TEM LE FT OF T 05 3 3 24 12 TH E 10 1 2 ¾ 0 0 0 DO T NO 2 90% WOV 69 TO 1½ 80 2 4 80% WOV HIS S 5 12 6 4 15 8 70% WOV 47 Static Pressure (Pa x 100) 10 7½ 13 Maximum QEI-L 215T Motor QEI 256T Frame Size Minimum Motor 3/4 hp .55 kW Starting hp Wheel Diameter 33 in. 838 mm Approximate Weight QEI-L 470 lbs. 214 kg. (Less Motor & Drives) QEI 540 lbs. 245 kg.
QEI-27 Class II QEI-27II 10 Performance Data 1847 Maximum Bhp = (Fan RPM / 630) 3 CU RVE TEM 304 kg. SY S 670 lbs. Approximate Weight (Less Motor & Drives) 10 7½ 5 4 LE FT OF TH IS 838 mm 5 3 5 2 Outlet Velocity (FPM) = CFM / 7.54 2 1 Tip Speed (FPM) = Fan RPM x 8.64 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 12.9) 80% WOV 47 33 in. 6 08 Wheel Diameter 1.
QEI-30 Class I & QEI-L QEI-30I Performance Data 6 1200 1360 SY STE M TO FT HIS 5 2 4 1 1 DO 0 0 0 39 2 90% WOV 90 4 66 6 52 NO T 2 11 TH EL EF 2 SE LE CT TO 6 3 80% WOV 60 8 4 13 Static Pressure (Pa x 100) 10 70% WOV 00 12 Maximum QEI-L 256T Motor QEI 284T Frame Size Minimum Motor 1 hp .75 kW Starting hp Wheel Diameter 36.5 in. 927 mm Approximate Weight QEI-L 630 lbs. 286 kg. (Less Motor & Drives) QEI 850 lbs. 386 kg.
QEI-30 Class II QEI-30II 10 Performance Data 20 1670 1000 lbs. 454 kg. 10 5 CU RVE SY STE M 927 mm 7½ 4 5 3 5 1 Tip Speed (FPM) = Fan RPM x 9.56 DO 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 17.4) 13 90% WOV 47 10 43 91 SE LE CT 2 Outlet Velocity (FPM) = CFM / 9.31 13 11 TO 3 Maximum Bhp = (Fan RPM / 533)3 70 36.5 in. 80% WOV 16 Wheel Diameter 10 45 1.1 kW 6 57 11⁄2 hp 15 14 Minimum Motor Starting hp 70% WOV 15 7 Static Pressure (in.
QEI-33 Class I & QEI-L QEI-33I Performance Data 6 14 15 5 12 SY ST EM CU RV E 5 11 09 TH IS 6 3 80% WOV OF 8 4 2 4 1 96 000 9 LE FT 10 34 Maximum QEI-L 256T Motor QEI 286T Frame Size Minimum Motor 1.1 kW 11⁄2 hp Starting hp Wheel Diameter 40.25 in. 1022 mm Approximate Weight QEI-L 730 lbs. 332 kg. (Less Motor & Drives) QEI 990 lbs. 449 kg. Maximum Bhp = (Fan RPM / 450)3 Outlet Velocity (FPM) = CFM / 11.27 Tip Speed (FPM) = Fan RPM x 10.5 % WOV = (CFM x 100) / (Fan RPM x 26.
QEI-33 Class II QEI-33II 10 Performance Data 1522 Maximum Bhp = (Fan RPM / 450) 3 YS TEM CU RVE HIS S FT 4 3 5 2 Outlet Velocity (FPM) = CFM / 11.27 5 3 1 Tip Speed (FPM) = Fan RPM x 10.5 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 23.5) 12 TH EL EF TO 544 kg. 22 1200 lbs. 10 15 1022 mm 10 DO N 14 40.25 in. Approximate Weight (Less Motor & Drives) 5 80% WOV 13 Wheel Diameter 1.
QEI-36 Class I & QEI-L QEI-36I Performance Data 6 920 1116 CU RV E YS TE M 5 LE FT 2 1½ 0 0 0 0 DO T NO 1 54 9 SE 5 90% WOV 65 TO 1 82 TH E 3 2 33 OF TH IS S 3 4 80% WOV 10 6 10 16 8 4 LE CT 10 11 Maximum QEI-L 256T Motor QEI 286T Frame Size Minimum Motor 1.1 kW 11⁄2 hp Starting hp Wheel Diameter 44.5 in. 1130 mm Approximate Weight QEI-L 900 lbs. 409 kg. (Less Motor & Drives) QEI 1200 lbs. 544 kg. Maximum Bhp = (Fan RPM / 380)3 Outlet Velocity (FPM) = CFM / 13.
QEI-36 Class II QEI-36II 10 Performance Data 1377 Maximum Bhp = (Fan RPM / 381)3 CU RVE SY STE M 635 kg. EF TO FT HIS 1400 lbs. Approximate Weight (Less Motor & Drives) 10 5 10 4 3 5 5 2 Outlet Velocity (FPM) = CFM / 13.79 1 Tip Speed (FPM) = Fan RPM x 11.7 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 31.7) 10 TH EL 1130 mm 80% WOV 77 44.5 in. 15 13 Wheel Diameter 6 83 2.2 kW 7 01 3 hp 15 70% WOV 13 Minimum Motor Starting hp 20 Static Pressure (in.
QEI-40 Class I QEI-40I Performance Data 6 5 49 in. 1245 mm 1500 lbs. 680 kg. 6 2 CU RV E 5 Maximum Bhp = (Fan RPM / 324) Outlet Velocity (FPM) = CFM / 16.77 1 2 2 N Tip Speed (FPM) = Fan RPM x 12.8 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 48.1) 79 9 90% WOV 8 TO 4 3 80% WOV 69 55 EL EC T Approximate Weight (Less Motor & Drives) 3 TH E Wheel Diameter 8 10 8 3.7 kW 4 94 5 hp 10 13 Minimum Motor Starting hp Static Pressure (in.
QEI-40 Class II QEI-40II 10 Performance Data 1251 YS TEM CU RVE 862 kg. 10 HIS S 1900 lbs. 5 4 10 3 Maximum Bhp = (Fan RPM / 324) 5 2 Outlet Velocity (FPM) = CFM / 16.77 1 Tip Speed (FPM) = Fan RPM x 12.8 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 42.4) 10 06 DO 5 90% WOV 87 9 TO 5 3 69 SE LE CT Approximate Weight (Less Motor & Drives) 51 1245 mm 12 49 in. 80% WOV 07 Wheel Diameter 20 6 11 5.
QEI-44 Class I QEI-44I Performance Data 6 5 907 kg. 6 CU RV E 2000 lbs. 3 YS TE M Approximate Weight (Less Motor & Drives) 8 10 2 5 Outlet Velocity (FPM) = CFM / 20.49 TH 2 2 0 0 0 9 TO 1 Tip Speed (FPM) = Fan RPM x 14.2 % WOV = (CFM x 100) / (Fan RPM x 65.3) 58 46 LE CT Maximum Bhp = (Fan RPM / 273) 90% WOV E 4 3 0 1378 mm 5 54.25 in. 80% WOV 91 Wheel Diameter 4 3 5.5 kW 10 85 71⁄2 hp 70% WOV 74 Minimum Motor Starting hp 20 OF 326T Static Pressure (in.
QEI-44 Class II QEI-44II 10 Performance Data 9 10 Maximum Bhp = (Fan RPM / 274) 3 TEM CU RVE HIS SY S 1043 kg. 4 10 3 5 2 Outlet Velocity (FPM) = CFM / 20.49 5 1 Tip Speed (FPM) = Fan RPM x 14.2 DO 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 57.5) 80% WOV FT 2300 lbs. TH EL EF TO Approximate Weight (Less Motor & Drives) 5 85 0 5 3 59 0 46 T NO 8 15 10 90% WOV 74 TO 1378 mm 20 71 54.25 in. 6 29 Wheel Diameter 15 11 7.
QEI-49 Class I QEI-49I Performance Data 6 1524 mm 2400 lbs. 1089 kg. 6 3 2 7½ Maximum Bhp = (Fan RPM / 231) Outlet Velocity (FPM) = CFM / 24.85 1 2 3 Tip Speed (FPM) = Fan RPM x 15.7 DO 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 88.4) 80% WOV 67 6 90% WOV 57 0 TO 4 3 SE LE CT Approximate Weight (Less Motor & Drives) 8 TH E 60 in. Static Pressure (in. wg) Wheel Diameter 15 1 7.
QEI-49 Class II QEI-49II 10 1020 Maximum Bhp = (Fan RPM / 231) 3 TH IS S OF 10 4 3 5 10 2 Outlet Velocity (FPM) = CFM / 24.85 1 Tip Speed (FPM) = Fan RPM x 15.7 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 77.8) 78 9 EF T 1406 kg. 20 71 TH EL 3100 lbs. Approximate Weight (Less Motor & Drives) 5 3 1524 mm 97 60 in. 80% WOV 20 Wheel Diameter 30 6 10 11 kW 70% WOV 7 DO N 0 15 hp 15 50% WOV 85 Minimum Motor Starting hp RPM BHP % WOV 3 Density 0.075 lb/ft 3 Density 1.
QEI-54 Class I QEI-54I Performance Data 6 5 Approximate Weight (Less Motor & Drives) 2900 lbs. 1315 kg. 6 Maximum Bhp = (Fan RPM / 197) Outlet Velocity (FPM) = CFM / 30.46 2 5 1 2 Tip Speed (FPM) = Fan RPM x 17.3 0 0 0 % WOV = (CFM x 100) / (Fan RPM x 118) CU RV E 10 4 3 M SY ST E 3 TH IS 1676 mm 61 OF 66 in. 80% WOV 2 Wheel Diameter 8 20 5 7.5 kW 4 75 10 hp 10 67 Minimum Motor Starting hp 30 3 LE FT 365T RPM 70 BHP % WOV 3 Density 0.075 lb/ft Density 1.
QEI-54 Class II QEI-54II 10 Performance Data 100 75 929 66 in. 1676 mm 3600 lbs. 1633 kg. Approximate Weight (Less Motor & Drives) 10 UR VE 4 SY ST E MC Wheel Diameter 6 30 20 Maximum Bhp = (Fan RPM / 197) 5 SE LE CT TO 10 3 2 Outlet Velocity (FPM) = CFM / 30.
QEI-60 Class I 8 Performance Data 75 7 60 15 hp Wheel Diameter 11 kW 73 in. Approximate Weight (Less Motor & Drives) 1854 mm 3500 lbs. 1588 kg. Maximum Bhp = (Fan RPM / 167) 3 10 8 6 25 20 3 15 10 DO 0 % WOV = (CFM x 100) / (Fan RPM x 159) 30 4 1 2 Tip Speed (FPM) = Fan RPM x 19.1 40 5 2 4 Outlet Velocity (FPM) = CFM / 37.23 70% WOV CU RV E 12 50 6 EC T Minimum Motor Starting hp 14 LE FT OF TH IS SY ST EM 405T Static Pressure (in.
QEI-60 Class II 12 Performance Data Maximum Fan RPM 50% WOV 150 125 100 840 RPM BHP % WOV 3 Density 0.075 lb/ft 3 Density 1.2 kg/m 60% WOV 25 Specification Data 10 75 Wheel Diameter 73 in. 1854 mm 4200 lbs. 1905 kg. Approximate Weight (Less Motor & Drives) Maximum Bhp = (Fan RPM / 167) 3 15 10 60 50 6 40 30 25 4 DO 0 0 % WOV = (CFM x 100) / (Fan RPM x 140) 0 0 80% WOV 75 0 0 2 Tip Speed (FPM) = Fan RPM x 19.1 84 60 20 15 5 Outlet Velocity (FPM) = CFM / 37.
Specifications Model QEI-L, QEI-I/II and QEID Supply, exhaust, or return air fans shall be of the inline mixed flow type. The housing shall be constructed of welded heavy-gauge steel to assure no air leakage. Housing shall have inlet and outlet collars for slip-fit duct connections. The housing and bearing and/or motor supports shall be constructed of heavy-gauge steel members to prevent vibration and rigidly support the shaft and bearings.