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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-36 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
10300 746 343 0.63 402 1.14 508 2.36
12500 906 394 0.88 443 1.44 537 2.79 622 4.31
14700 1065 448 1.22 488 1.82 571 3.27 649 4.93 720 6.71
16900 1225 503 1.65 539 2.31 611 3.83 681 5.63 748 7.55 808 9.57 874 11.8
19100 1385 560 2.19 592 2.90 654 4.52 718 6.39 780 8.49 839 10.7 894 12.9 950 15.4 1007 18.0
21300 1544 618 2.85 646 3.63 702 5.35 760 7.31 817 9.48 872 11.8 925 14.3 975 16.7 1022 19.3
23500 1704 677 3.64 702 4.50 753 6.33 803 8.36 857 10.6 908 13.1 958 15.7 1006 18.3 1052 21.0
25700 1863 736 4.59 758 5.51 805 7.45 851 9.59 899 11.9 946 14.4 994 17.1 1040 20.0 1084 22.9
27900 2023 795 5.69 815 6.69 859 8.76 902 11.0 943 13.4 989 16.0 1032 18.8 1076 21.7
30100 2182 854 6.97 873 8.05 913 10.3 953 12.6 993 15.1 1033 17.8 1075 20.7 1114 23.6
32300 2342 914 8.44 932 9.59 969 12.0 1005 14.4 1043 17.0 1079 19.8
34500 2501 974 10.1 991 11.3 1024 13.8 1060 16.4 1094 19.1
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
275
100 70 68 63 62 61 48 39 32 64
275
100 72 68 65 65 64 53 45 38 67
80 68 67 61 61 59 49 40 34 63 80 69 69 64 65 63 53 45 38 66
60 64 65 60 61 60 49 39 32 63 60 69 69 63 64 63 53 46 40 66
50 66 66 61 61 59 49 39 33 63 50 69 69 63 64 64 53 47 40 66
400
100 75 76 71 70 69 58 49 45 72
400
100 80 76 73 72 70 61 53 45 74
80 72 74 69 70 65 57 50 43 70 80 78 75 71 71 67 60 53 45 72
60 70 72 67 70 65 58 51 44 70 60 77 75 69 70 67 60 53 46 71
50 70 71 67 69 65 58 51 43 70 50 78 75 70 70 67 59 53 45 71
550
100 85 82 79 75 75 73 60 54 79
550
100 90 83 80 80 77 74 62 54 82
80 81 80 76 73 72 66 60 53 76 80 88 82 78 79 75 68 61 53 80
60 80 80 74 72 72 66 61 54 76 60 86 82 76 76 74 68 61 53 78
50 80 80 74 72 72 66 61 55 75 50 86 82 76 76 74 67 61 54 78
800
100 87 95 89 84 81 84 71 63 89
800
100 88 91 89 90 85 84 75 66 91
80 85 93 86 81 79 75 68 62 85 80 86 91 86 87 82 77 71 64 87
60 84 91 82 77 77 74 69 64 82 60 86 89 84 84 80 76 71 65 85
50 84 89 81 77 77 74 69 64 82 50 88 90 84 83 80 76 71 65 85
1116
100 91 100 96 94 91 89 89 74 97
1116
100 92 97 98 99 95 92 90 77 100
80 89 98 94 91 88 84 78 72 93 80 91
96 95 97 92 87 82 74 97
60 88 96 89 87 84 82 78 73 90 60 93 94 93 93 89 85 80 74 94
50 88 96 89 87 84 82 78 73 90 50 95 95 93 93 89 85 80 75 94
Static Pressure (in. wg)
Static Pressure (Pa x 100)
Volume (cfm x 1000)
3
Volume (m /hr x 1000)
0 10 20 30 40 50 60
0
2
4
6
8
10
12
14
D
O
N
O
T
S
E
L
E
C
T
T
O
T
H
E
L
E
F
T
O
F
T
HI
S
S
Y
S
T
E
M
C
U
R
V
E
0 5 10 15 20 25 30 35 40
0
1
2
3
4
5
6
QEI-36I
RPM
BHP
% WOV
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
436
549
651
820
939
920
60% WOV
70% WOV
80% WOV
90% WOV
1033
3
5
10
1½
15
1116
20
25
30
Performance Data
Maximum
FanRPM
QEI-L 920
QEI 1116
Specification Data
Maximum
Motor
FrameSize
QEI-L 256T
QEI 286T
MinimumMotor
Startinghp
1
1
⁄2hp 1.1 kW
WheelDiameter 44.5in. 1130 mm
ApproximateWeight
(LessMotor&Drives)
QEI-L 900lbs. 409 kg.
QEI 1200lbs. 544 kg.
MaximumBhp=(FanRPM/380)
3
OutletVelocity(FPM)=CFM/13.79
TipSpeed(FPM)=FanRPMx11.7
%WOV=(CFMx100)/(FanRPMx36.1)
Imperialdata—Metric data