CFM
OV
STATIC PRESSURE (in. wg)
1
2
3
4
5
6
7
8
9
RPM
#)1
RPM
#)1
RPM
#)1
RPM
#)1
RPM
#)1
RPM
#)1
RPM
#)1
RPM
#)1
RPM
#)1
6000
1967
1428
1.86
1602
2.96
4.11
1908
2131
2.16
1682
3.34
1832
1970
2108
7.27
7000
1609
1763
3.77
1907
2041
6.41
2168
7.84
9.40
1703
2.90
1847
4.23
1986
2114
7.02
2236
10.1
2472
11.8
8000
2622
1797
3.34
1934
4.73
2066
6.19
2190
7.69
2308
9.22
2418
10.8
2640
14.3
2786
1892
3.83
2022
2147
6.83
2268
8.39
2381
10.0
2490
11.7
13.4
2700
2802
17.1
9000
1988
4.37
2111
2230
2347
10.8
12.6
2663
14.3
16.1
2862
18.1
3114
4.96
2202
2317
8.23
2428
9.97
11.7
2637
2736
2830
17.2
2922
19.2
10000
3278
2182
7.24
2404
9.00
10.9
2614
12.7
2713
2809
16.4
2902
18.4
2991
20.4
3442
2279
6.33
2388
8.03
2493
9.84
11.8
13.7
2792
2884
17.6
19.6
3063
21.7
11000
3606
2377
7.11
2482
8.88
10.7
2681
12.7
2776
14.8
2871
16.8
2962
18.8
3049
20.9
23.0
3770
7.93
9.79
2672
11.7
2768
13.8
18.0
3041
20.1
3126
22.3
3210
24.4
RPM
807
Inlet Sound Power, L
8J
<E#SFG
-12
XBUUT>
1
2
3
4
6
7
8
L
8J
A
900
100
77
73
77
68
68
48
73
80
77
72
74
66
64
60
47
70
60
77
71
73
61
48
69
77
72
73
61
47
69
1200
100
72
78
83
73
73
71
68
79
80
73
73
79
73
69
67
60
76
60
72
73
82
71
66
76
72
73
82
71
66
76
1700
100
81
79
89
83
80
80
77
69
87
80
82
78
87
80
76
70
84
60
81
77
86
78
73
73
67
82
80
77
86
78
73
73
67
82
2300
100
86
86
88
91
87
87
81
94
80
80
83
89
83
83
79
74
90
60
81
81
87
90
82
80
76
73
89
81
81
88
91
82
80
76
73
90
3409
100
93
97
97
99
98
96
92
103
80
87
92
94
96
92
90
100
60
88
92
93
97
89
87
83
99
88
92
94
98
89
87
83
99
RPM
807
Outlet Sound Power, L
8P
<E#SFG
-12
XBUUT>
1
2
3
4
6
7
8
L
8P
A
900
100
73
80
74
74
72
62
78
80
71
73
77
72
71
67
60
70
74
70
69
66
74
70
74
70
69
66
74
1200
100
76
81
86
80
79
78
63
80
76
76
84
77
76
74
67
61
82
60
76
81
76
73
66
61
80
76
76
82
76
73
66
61
80
1700
100
82
84
94
89
88
86
83
78
94
80
82
82
90
86
84
82
77
71
90
60
82
83
89
84
82
80
70
88
82
83
89
84
82
80
70
88
2300
100
91
91
92
98
96
94
91
87
101
80
90
89
89
94
93
90
80
97
60
90
90
91
93
90
87
82
79
90
90
91
94
90
87
82
79
3409
100
98
102
102
104
106
104
101
98
110
80
97
100
99
101
102
100
96
91
106
60
96
101
100
101
101
98
93
89
97
101
100
101
101
97
93
89
Plenum Size 20
QEP Class I
Maximum rpm
QEP Class II
Maximum rpm 2706
QEP Class III
Maximum rpm 3409
QEM
Maximum rpm 2327
Note: Model QEM does not utilize class designations.
QEP Motor on Frame Limit
254T
Minimum Motor Size
1/3 [hp]
Wheel Diameter
20.00
508
[in.]
[mm]
Peak Power
(rpm / 1086)
3
(rpm / 1198)
3
[hp]
[kW]
Wheel Outlet Velocity
cfm / 3.05
m
3
/s / 1.80
[ft/min]
[m/s]
Tip Speed
rpm x 5.24
rpm x 0.0266
[ft/min]
[m/s]
% Wide Open Volume (%WOV)
cfm / (rpm x 0.0488)
m
3
/hr / (rpm x 0.0830)
[%]
[%]
Imperial data —
Metric data
0
5
10
15
20
25
0
5
10
15
20
25
30
0
2
4
6
8
10
12
14
16
0
2
4
6
8
10
12
14
90%
80%
70%
Static Pr
essur
e (in. wg)
Volume (cfm x 1000)
Volume (m
3
/hr X 1000)
Static Pr
essur
e (Pa x 100)
25
15
10
7½
5
3
2
1½
1
20
30
40
1086 1243
1368
1566
1857
2327
2948
3175
3409
D
O
N
O
T
S
E
LE
C
T
T
O
T
H
E
L
E
F
T
O
F
T
H
IS
S
YS
T
E
M
C
U
R
V
E
rpm
hp
% WOV
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
2075
2706
18
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.
