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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.
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
3600 1730 1726 1.07 1949 2146 2.46 2328 3.20
4000 1923 1.30 2076 2.04 2264 2.81 3.61
2744
4400 2007 2207 2.36 2384 3.21 4.06
2703
2849
6.83
4800 2307 1.86 2341 2.73 3.63
2669
2816
6.48 3090 7.48 3216
2301 2.20 2478 3.14 2641 4.10
2790
2934 6.10 3067 7.13 3197 8.19 3322 9.27 3440 10.4
2692 2618 3.60
2773 4.62
2918 6.76 7.84 3308 3429 10.1 11.3
6000 2884 2602 3.02
4.11
2908
3048 6.31 3178 7.46 8.61 3426 9.77 11.0 12.2
6400 3076
2903 4.68
3046 3180 7.00 3307 8.20 3427 9.44 10.7 11.9 3766 13.2
6800 3269
2907 4.06
3186 3314 3437 9.01 10.3 3666 11.6 3778 12.9 3883 14.2
7200 3461 3061 4.67 3198 3327 7.26 9.88 3684 11.2 3793 12.6 3898 14.0
7600 3346 6.69 3469 8.08 9.43 3704 10.8 12.2
8000 3846 3371 6.08 3496 7.49 3731 10.4 3842 11.8
RPM 807
Inlet Sound Power, L
8J
<E#SFG
-12
XBUUT>
1234 678L
8J
A
1100
100 84 78 73 69 64 62 48 72
80 87 86 77 67 62 61 46 74
60 84 86 72 47 72
86 72 64 48 72
100 80 77 74 69 68 66 77
80 77 77 76 71 66 62 74
60 71 64 64 60 73
76 70 64 64 60 73
2000
100 76 79 77 86 73 68
80 76 79 78 87 73 72 68 84
60 80 78 86 70 70 67 84
81 78 70 69 67 83
2800
100 86 86 82 89 82 81 80 80 90
80 92 88 81 88 79 79 77 76 88
60 88 88 81 89 78 78 76 74 88
87 88 81 89 78 77 74 88
3900
100 93 96 92 93 93 88 88 88 97
80 99 99 92 92 92 86 86 84 96
60 94 98 93 92 91 84 82
94 97 92 92 91 84 82
RPM 807
Outlet Sound Power, L
8P
<E#SFG
-12
XBUUT>
1234 678L
8P
A
1100
100 71 80 73 70 72 71 64 76
80 71 77 73 69 71 69 61
60 72 76 70 67 68 66 61 73
72 69 67 67 66 61 72
100 78 83 77 77 76 74 64 83
80 77 83 74 73 69 61 80
60 78 80 73 72 72 68 62 78
78 79 73 72 71 68 62 78
2000
100 78 77 80 86 83 80 78 88
80 78 78 81 86 80 78 71 87
60 78 77 79 83 78 77 74 69 84
79 77 80 82 78 76 74 70 84
2800
100 89 86 94 91 90 88 87 97
80 90 87 86 94 88 86 83 81
60 88 86 91 86 82 79 92
89 86 84 91 86 84 82 78 92
3900
100 96 96 94 98 100 98 96
80 96 98 98 99 92 90 103
60 96 94 96 96 93 91 88 100
96 97 93 96 96 92 90 87 100
16
Plenum Size 16
QEP Class I Maximum rpm 2374
QEP Class II Maximum rpm
QEP Class III Maximum rpm 3900
QEM Maximum rpm 2786
Note: Model QEM does not utilize class designations.
QEP Motor on Frame Limit 215T
Minimum Motor Size 1/3 [hp]
Wheel Diameter
16.50
419
[in.]
[mm]
Peak Power
(rpm / 1571)
3
(rpm / 1732)
3
[hp]
[kW]
Wheel Outlet Velocity
cfm / 2.07
m
3
/s / 1.22
[ft/min]
[m/s]
Tip Speed
rpm x 4.32
rpm x 0.0219
[ft/min]
[m/s]
% Wide Open Volume (%WOV)
cfm / (rpm x 0.0247)
m
3
/hr / (rpm x 0.0420)
[%]
[%]
Imperial data — Metric data
0246810121416
0
5
10
15
20
25
30
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
YS
T
E
M
C
U
R
V
E
012345678910
0
2
4
6
8
10
12
14
Static Pressure (in. wg)
Volume (cfm x 1000)
Volume (m
3
/hr x 1000)
Static Pressure (Pa x 100)
15
10
7½
5
3
2
1
½
1
¾
½
60%
70%
80%
20
1979
1571
1247
2686
2786
3385
90%
rpm
hp
% WOV
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
2374
3095
3900
Plenum Size 16