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)
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
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>
1
2
3
4
6
7
8
L
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>
1
2
3
4
6
7
8
L
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
0
10
20
0
5
10
15
20
25
30
35
0
2
4
6
8
10
12
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
IS
S
Y
S
T
E
M
C
U
R
V
E
15
10
7½
5
3
2
1½
1
20
rpm
hp
% WOV
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
Static Pr
essur
e (in. wg)
Static Pr
essur
e (Pa x 100)
5
15
Plenum Size 18
