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1FSGPSNBODFDFSUJGJFEJTGPSJOTUBMMBUJPOUZQF"'SFFJOMFU'SFFPVUMFU1PXFSSBUJOHT#IQEPOPUJODMVEFUSBOTNJTTJPOMPTTFT1FSGPSNBODFSBUJOHTEPOPUJODMVEF
the effects of appurtenances (accessories).
The sound power level ratings shown are in decibels, referred to 10
-12
XBUUTDBMDVMBUFEQFS".$"*OUFSOBUJPOBM4UBOEBSE7BMVFTTIPXOBSFGPSJOMFU-
8J
, L
8J
A
and outlet L
8P
, L
8P
A sound power levels for installation type A: Free inlet, Free outlet. The A-weighted sound ratings shown have been calculated per AMCA
International Standard 301. Outlet ratings do not include the effects of duct end correction.
The AMCA International Certified Ratings Seal for Sound for model QEM only applies to the single L
8J
A and L
8P
A values.
Plenum Size
CFM OV
STATIC PRESSURE (in. wg)
123456789
RPM #)1 RPM #)1 RPM #)1 RPM #)1 RPM #)1 RPM #)1 RPM #)1 RPM #)1 RPM #)1
3000 1744 1910 0.90 1.46 2371 2.67 3.33
3200 1860 2002 1.01 2238 1.61 2448 2.22 2641 2.87 2819
3400 1976 2096 1.13 2324 1.76 2.41 2713 3.09 2889 3.79
3600 2093 2191 1.27 2411 1.92 2608 2.61 2790 3.31 2961 4.04
3121 4.80
3271
3800 2209 2287 1.41 2.10 2691 2.82 2869
3033 4.31
3192 3340 3480 6.74
4000 2.29 2776 3.04 2949 3.81
3110
3264 3411 6.24 7.10 3681 7.98
4200 2441 2483 1.73 2681 2.49 2862 3.27
3029 4.08
3188 4.89 3337 3482 3619 7.47 8.38
4400 1.91 2773 2.71 2949
3112 4.36
3268 3414 6.07 6.96 3690 7.87 3820 8.80
4600 2674 2682 2.11 2867 2.94
3038 3.78
3197 3348 3492 6.43 3628 7.34 3762 8.28 3890 9.24
4800 2790 2782 2.32 2960 3.19
3127 4.06
3283 4.96 3429 6.80 3706 3834 8.71 3962 9.69
2906 2883
3218 3370 6.24 7.20 3784 8.17 3911 9.16
3023 2984 2.79
3.74
3309 4.66 6.61 3732 7.61 3864 8.61 3989 9.62
RPM 807
Inlet Sound Power, L
8J
<E#SFG
-12
XBUUT>
1234 6 7 8 LwiA
1200
100 84 78 73 69 63 62 48 71
80 86 86 77 66 61 61 46 74
60 82 87 72 47 73
83 87 72 64 47 73
1600
100 73 78 73 68 67
80 74 70 64 64 61 72
60 73 74 73 70 63 63 71
74 73 73 69 63 63 71
2200
100 79 86 74 73 68
80 74 79 88 72 71 68 64
60 73 80 88 70 69 67 64
74 80 76 87 70 69 67 84
2900
100 84 84 79 86 80 79 78 78 87
80 89 86 78 86 77 77 74 86
60 86 78 86 76 76 74 72 86
84 86 78 86 76 73 72 86
4000
100 90 93 90 91 91 86
80 96 97 90 90 89 84 83 82 94
60 92 90 90 89 83 82 80 93
91 94 89 90 89 83 81 80 93
RPM 807
Outlet Sound Power, L
8P
<E#SFG
-12
XBUUT>
1234 678L
8P
A
1200
100 68 80 73 69 71 70 64 76
80 69 77 72 67 70 69 61
60 70 70 66 67 66 61 72
70 68 66 66 61 72
1600
100 73 81 74 63 81
80 74 81 73 73 71 68 61 79
60 73 76 78 72 71 70 67 61 77
73 76 77 72 71 70 67 61 77
2200
100 77 76 78 83 80 78 74 88
80 77 77 79 86 80 78 70 86
60 78 76 77 83 78 76 74 69 84
78 76 79 82 78 76 74 69 84
2900
100 87 82 83 91 89 88 86
80 87 84 83 92 86 84 81 79 92
60 86 83 82 88 84 83 80 77 90
87 83 82 88 84 82 80 76 90
4000
100 93 93 91 98 94 93 102
80 93 92 96 97 92 90 87 100
60 92 94 91 93 94 91 89 98
93 94 91 93 94 90 88 98
Plenum Size 15
QEP Class I Maximum rpm 2611
QEP Class II Maximum rpm 3404
QEP Class III Maximum rpm 4000
QEM Maximum rpm 3064
Note: Model QEM does not utilize class designations.
QEP Motor on Frame Limit 213T
Minimum Motor Size 1/3 [hp]
Wheel Diameter
15.00
381
[in.]
[mm]
Peak Power
(rpm / 1842)
3
(rpm / 2031)
3
[hp]
[kW]
Wheel Outlet Velocity
cfm / 1.71
m
3
/s / 1.01
[ft/min]
[m/s]
Tip Speed
rpm x 3.93
rpm x 0.0199
[ft/min]
[m/s]
% Wide Open Volume (%WOV)
cfm / (rpm x 0.0186)
m
3
/hr / (rpm x 0.0316)
[%]
[%]
Imperial data — Metric data
024681012
0
5
10
15
20
25
02468
0
2
4
6
8
10
12
90%
80%
70%
60%
15
10
7½
5
3
2
1½
1
¾
½
1
/
3
3064
4000
3606
3404
3150
2611
2109
Volume (cfm x 1000)
Volume (m
3
/hr x 1000)
1674
1277
D
O
N
O
T
S
E
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
rpm
hp
% WOV
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
Static Pressure (in. wg)
Static Pressure (Pa x 100)
1
3
5
7
Plenum Size 15