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Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not
include the effects of appurtenances (accessories).
The sound power level ratings shown are in decibels, referred to 10
-12
watts, calculated per AMCA Standard 301. Values shown are for inlet L
Wi
, L
Wi
A and outlet L
Wo
,
L
Wo
A sound power levels for installation type B: Free inlet, Ducted outlet. Ratings for inlet sound do not include the effects of duct end correction. Ratings for outlet
sound include the effects of duct end correction. The A-weighted sound power ratings shown have been calculated per AMCA Standard 301. The AMCA Certified
Ratings Seal applies to L
Wi
A and L
Wo
A values only.
Performance Data
QEI-15 Class I & QEI-L
CFM OV
STATIC PRESSURE (inches wg)
0.25 0.5 1 1.5 2 2.5 3 3.5 4
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1700 732 823 0.12 965 0.21 1229 0.44
2100 905 952 0.17 1072 0.28 1301 0.52 1508 0.81
2500 1077 1088 0.24 1194 0.36 1391 0.62 1580 0.93 1753 1.27 1915 1.64
2900 1250 1231 0.33 1323 0.46 1495 0.75 1662 1.07 1827 1.43 1976 1.83 2122 2.24 2257 2.68
3300 1422 1376 0.44 1456 0.59 1615 0.92 1763 1.25 1907 1.62 2054 2.03 2188 2.47 2317 2.94 2443 3.42
3700 1594 1524 0.58 1597 0.74 1740 1.11 1875 1.47 2008 1.86 2135 2.27 2266 2.73 2390 3.22 2505 3.72
4100 1767 1674 0.75 1740 0.93 1870 1.31 1996 1.73 2114 2.13 2236 2.56 2350 3.02 2469 3.52 2583 4.05
4500 1939 1825 0.95 1885 1.14 2003 1.55 2121 2.01 2234 2.45 2339 2.90 2451 3.38 2556 3.88 2663 4.41
4900 2112 1977 1.19 2031 1.40 2141 1.83 2251 2.31 2356 2.82 2458 3.29 2553 3.77 2657 4.30
5300 2284 2130 1.47 2180 1.69 2282 2.16 2383 2.65 2483 3.20 2579 3.73 2672 4.24
5700 2456 2283 1.79 2330 2.03 2426 2.52 2517 3.04 2613 3.61 2704 4.20
6100 2629 2436 2.16 2481 2.41 2570 2.94 2657 3.48
InletSoundPower,L
Wi
[dBref10
-12
watts] OutletSoundPower,L
Wo
[dBref10
-12
watts]
RPM %WOV 1 2 3 4 5 6 7 8 L
Wi
A RPM %WOV 1 2 3 4 5 6 7 8 L
Wo
A
650
100 63 61 59 56 57 52 48 35 60
650
100 74 65 60 58 59 54 52 39 63
80 62 59 59 53 54 51 48 35 59 80 69 64 59 57 57 55 52 40 62
60 60 59 57 52 54 51 47 35 58 60 70 64 58 56 57 54 52 40 61
50 60 59 56 52 53 51 47 35 58 50 71 64 58 56 57 55 52 40 61
1000
100 65 66 68 65 60 63 52 44 68
1000
100 73 73 66 68 65 64 55 47 70
80 63 63 65 62 58 56 51 42 64 80 75 74 64 66 63 60 56 47 68
60 63 63 63 60 57 55 50 42 63 60 76 73 64 65 62 59 55 47 68
50 66 64 63 59 57 55 50 42 62 50 77 74 64 65 62 59 55 47 68
1400
100 69 77 73 72 69 67 69 53 75
1400
100 79 79 74 74 73 69 70 56 78
80 68 76 70 68 66 63 58 50 71 80 79 74 72 71 71 67 61 55 74
60 67 70 68 66 65 62 57 50 69 60 77 75 73 69 68 66 61 55 73
50 68 71 70 65 64 61 56 50 69 50 80 75 72 69 68 65 61 55 73
2000
100 73 73 82 81 78 74 77 65 84
2000
100 83 82 81 83 82 78 78 68 86
80 68 76 76 78 74 72 67 61 80 80 79 78 77 79 79 75 70 63 82
60 75 77 77 76 72 70 67 62 78 60 83 81 78 77 77 74 69 64 81
50 81 80 77 76 72 71 67 61 78 50 86 83 79 77 76 73 69 64 81
2721
100 79 78 86 88 86 83 80 83 91
2721
100 91 85 87 90 90 86 82 84 94
80 80 73 83 85 81 79 74 69 86 80 88
83 81 84 86 84 78 72 90
60 78 75 78 81 79 77 73 69 84 60 87 87 83 82 83 81 77 71 88
50 80 79 80 81 78 76 74 70 83 50 90 89 85 83 83 81 76 72 88
Static Pressure (in. wg)
Static Pressure (Pa x 100)
Volume (cfm x 1000)
3
Volume (m /hr x 1000)
0 2 4 6 8 10
0
2
4
6
8
10
12
14
D
O
N
O
T
SE
L
E
C
T
T
O
T
H
E
L
E
F
T
O
F
T
H
I
S
S
Y
S
T
E
M
C
U
R
V
E
0 1 2 3 4 5 6 7
0
1
2
3
4
5
6
QEI-15I
RPM
BHP
% WOV
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
1018
¼
½
2
3
1283
1617
2037
2331
1
50% WOV
60% WOV
70% WOV
80% WOV
90% WOV
5
2721
Performance Data
Maximum
FanRPM
QEI-L 2721
QEI 2721
Specification Data
Maximum
Motor
FrameSize
QEI-L 184T
QEI 213T
MinimumMotor
Startinghp
1/3hp .25 kW
WheelDiameter 18.25in. 464 mm
ApproximateWeight
(LessMotor&Drives)
QEI-L 140lbs. 64 kg.
QEI 190lbs. 82 kg.
MaximumBhp=(FanRPM/1617)
3
OutletVelocity(FPM)=CFM/2.32
TipSpeed(FPM)=FanRPMx4.78
%WOV=(CFMx100)/(FanRPMx2.55)
Imperialdata—Metric data