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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
1771 1739 2.32 1906 3.18 2063 4.07
1968 1699 1.88 1860 2.74 2014 3.68 2162 2301
1836 2.32 1984 3.23 2127 4.24 2266 2399 6.37 7.46
6000 2362 1976 2.84 2113 3.80 2248 4.86 2376 7.16
2623 8.32
2739
2117 3.43 2247 4.46 2371 2492 6.77
2611 8.00
9.27
2837 11.8
7000 2260 4.12 2383 2497
2613 7.62
2722 8.93
2833 10.3 2939 11.6 3044 13.0 3144 14.4
2403 4.90
2629 7.26
2737
2842 9.94 2944 11.4 3047 12.8 14.3 3243
8000 3149
7.00
2763 8.27
2862 9.60 11.0 3062 14.0 17.2
3346
2693 6.78 2798 8.06
2898 9.40 2993 10.8 3088 12.3 3183 13.8 3273 3364 17.0 18.6
9000 2839 7.88 2939 9.23 10.6 3126 12.1 3214 13.6 3306 3394 16.8 3478 20.2
3740 9.11 3081 3173 12.0 3261 3430 16.7 18.4 20.2 3678 21.9
10000 3937 3132 3224 12.0 3312 3397 3478 16.7 18.3 3640 20.1 3721 21.9
RPM 807
Inlet Sound Power, L
8J
<E#SFG
-12
XBUUT>
1234 678L
8J
A
1000
100 76 71 77 71 77 67 48 79
80 73 69 77 68 70 60 44 73
60 73 67 73 61 46 68
73 69 70 64 47 67
1400
100 76 79 80 78 69 84
80 74 82 74 72 72 61 79
60 73 73 80 71 66 66
73 73 79 70 60 74
1900
100 79 80 87 98 84 78 73 96
80 78 78 84 91 79 79 71 64 90
60 78 77 82 87 74 74 69
76 76 82 86 73 73 69 66 84
2600
100 87 86 89 97 91 92 86 82 98
80 84 87 94 86 86 81 74 94
60 82 83 90 82 81 78 74 90
82 82 83 92 81 81 78 76 91
100 94 96 96 101 102 99 97 93 106
80 92 99 99 94 92 86 102
60 89 93 93 96 94 90 88 98
88 92 92 96 89 88 99
RPM 807
Outlet Sound Power, L
8P
<E#SFG
-12
XBUUT>
1234 678L
8P
A
1000
100 71 71 79 80 73 82
80 69 72 77 70 72
60 72 76 74 69 66 72
73 80 76 69 66 64 73
1400
100 76 83 84 82 76 64 88
80 74 76 83 79 77 76 60 82
60 76 74 81 79 73 73 61 80
74 76 82 78 72 71 64 61 80
1900
100 80 83 88 93 90 89 83 81
80 81 82 89 84 84 69 90
60 81 81 84 87 81 80 70 88
82 81 88 81 80 74 71 88
2600
100 90 91 101 98 97 91 88 103
80 87 89 90 92 91 84 78 97
60 87 90 89 93 89 88 84 79
86 89 88 92 88 87 83 79 94
100 92 98 100 108 102 98 112
80 93 98 99 101 102 99 90 106
60 93 98 98 100 100 97 94 90 104
92 97 98 99 98 96 93 89 103
17
Plenum Size 18
QEP Class I Maximum rpm 2273
QEP Class II Maximum rpm 2964
QEP Class III Maximum rpm
QEM Maximum rpm 2668
Note: Model QEM does not utilize class designations.
QEP Motor on Frame Limit 215T
Minimum Motor Size 1/3 [hp]
Wheel Diameter
18.25
464
[in.]
[mm]
Peak Power
(rpm / 1291)
3
(rpm / 1424)
3
[hp]
[kW]
Wheel Outlet Velocity
cfm / 2.54
m
3
/s / 1.50
[ft/min]
[m/s]
Tip Speed
rpm x 4.78
rpm x 0.0243
[ft/min]
[m/s]
% Wide Open Volume (%WOV)
cfm / (rpm x 0.0330)
m
3
/hr / (rpm x 0.0561)
[%]
[%]
Imperial data — Metric data
01020
0
5
10
15
20
25
30
35
024681012
0
2
4
6
8
10
12
14
90%
80%
70%
Volume (cfm x 1000)
Volume (m
3
/hr x 1000)
25
3735
3504
3184
2964
2668
2273
1862
1478
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
15
10
7½
5
3
2
1
½
1
20
rpm
hp
% WOV
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
Static Pressure (in. wg)
Static Pressure (Pa x 100)
5
15
Plenum Size 18