Qei-12 class ii, Performance data, Specification data – Greenheck Fan Mixed Flow Fans Belt and Direct Drive QEI-L User Manual
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Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not
include the effects of appurtenances (accessories).
The sound power level ratings shown are in decibels, referred to 10
-12
watts, calculated per AMCA Standard 301. Values shown are for inlet L
Wi
, L
Wi
A and outlet L
Wo
,
L
Wo
A sound power levels for installation type B: Free inlet, Ducted outlet. Ratings for inlet sound do not include the effects of duct end correction. Ratings for outlet
sound include the effects of duct end correction. The A-weighted sound power ratings shown have been calculated per AMCA Standard 301. The AMCA Certified
Ratings Seal applies to L
Wi
A and L
Wo
A values only.
Performance Data
Shaded values show where Class I fan selections are more efficient than Class II.
QEI-12 Class II
Performance Data
Maximum Fan RPM
4000
Specification Data
Maximum Motor
Frame Size
184T
Minimum Motor
Starting hp
1/3 hp
.25 kW
Wheel Diameter
15 in.
381 mm
Approximate Weight
(Less Motor & Drives)
180 lbs.
82 kg.
Maximum Bhp = (Fan RPM / 2345)
3
Outlet Velocity (FPM) = CFM / 1.56
Tip Speed (FPM) = Fan RPM x 3.93
% WOV = (CFM x 100) / (Fan RPM x 1.16)
Imperial data —
Metric data
CFM
OV
STATIC PRESSURE (inches wg)
0
0.5
1
2
3
4
5
6
7
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1400
891
1203
0.08
1460
0.21
1696
0.37
2131
0.75
2510
1.21
1600
1019
1375
0.12
1604
0.26
1812
0.43
2213
0.84
2574
1.31
2894
1.84
1800
1146
1547
0.17
1752
0.33
1943
0.51
2301
0.93
2641
1.43
2957
1.98
3239
2.59
2000
1273
1719
0.24
1906
0.41
2080
0.60
2410
1.05
2728
1.56
3021
2.13
3302
2.76
3557
3.43
2200
1401
1891
0.32
2062
0.50
2223
0.71
2522
1.17
2817
1.71
3102
2.30
3366
2.95
3620
3.64
3854
4.37
2400
1528
2062
0.41
2221
0.61
2370
0.83
2653
1.32
2924
1.88
3190
2.49
3443
3.15
3684
3.86
3917
4.62
2600
1656
2234
0.52
2381
0.74
2519
0.97
2785
1.48
3035
2.06
3283
2.70
3530
3.38
3759
4.11
3981
4.88
2800
1783
2406
0.65
2543
0.88
2673
1.13
2921
1.66
3157
2.27
3393
2.92
3618
3.63
3846
4.38
3000
1910
2578
0.80
2706
1.05
2829
1.31
3064
1.87
3289
2.49
3504
3.17
3722
3.90
3934
4.67
3200
2038
2750
0.98
2871
1.24
2987
1.51
3209
2.10
3421
2.74
3624
3.44
3831
4.19
3400
2165
2922
1.17
3036
1.45
3145
1.74
3356
2.35
3556
3.01
3755
3.74
3943
4.50
3600
2292
3094
1.39
3202
1.68
3305
1.99
3504
2.62
3699
3.32
3887
4.06
Inlet Sound Power, L
Wi
[dB ref 10
-12
watts]
Outlet Sound Power, L
Wo
[dB ref 10
-12
watts]
RPM
% WOV
1
2
3
4
5
6
7
8
L
Wi
A
RPM
% WOV
1
2
3
4
5
6
7
8
L
Wo
A
1600
100
72
77
77
74
70
69
69
56
77
1600
100
87
83
78
75
74
71
69
58
79
80
74
79
75
69
66
67
61
55
73
80
84
85
73
70
71
69
63
58
76
60
73
80
75
66
64
64
58
55
72
60
85
84
73
68
68
66
61
58
75
50
74
80
76
65
63
63
57
54
72
50
87
84
73
68
68
65
60
59
74
2200
100
76
77
78
78
76
75
76
67
82
2200
100
89
85
80
80
80
77
75
67
84
80
76
78
76
74
72
72
68
63
78
80
87
84
77
76
77
74
70
66
81
60
76
79
75
71
70
70
66
62
76
60
88
82
77
74
74
72
67
66
79
50
77
79
75
71
69
68
64
62
76
50
89
83
77
74
74
71
67
66
79
2800
100
83
82
83
80
80
78
78
79
86
2800
100
97
89
86
83
84
81
78
78
89
80
86
86
81
77
76
75
73
68
82
80
91
90
83
80
82
79
75
71
86
60
85
91
79
76
75
75
72
67
82
60
91
87
83
79
80
77
73
71
85
50
86
89
80
76
74
74
70
67
81
50
93
88
83
79
79
76
73
70
84
3400
100
83
86
85
83
83
82
80
85
90
3400
100
98
91
88
86
88
85
81
84
92
80
87
86
83
80
80
79
76
72
85
80
93
90
86
83
85
82
79
75
89
60
87
90
82
79
79
78
76
71
85
60
93
89
86
83
84
81
78
75
89
50
87
89
83
80
78
78
75
71
85
50
95
89
86
83
83
81
77
74
88
4000
100
80
89
86
86
87
86
84
89
93
4000
100
95
90
90
89
91
89
85
87
96
80
82
83
83
81
83
82
79
76
88
80
94
88
87
85
88
86
82
78
92
60
84
82
85
81
82
81
79
75
87
60
94
89
89
85
88
85
82
78
92
50
84
83
85
83
82
81
79
75
88
50
94
89
88
86
87
84
82
78
91
7½
5
3
2
1½
1
¾
½
3400
4000
2800
2200
1600
Static Pr
essur
e (in. wg)
Static Pr
essur
e (Pa x 100)
Volume (cfm x 1000)
0
1
2
3
4
5
0
2
4
6
8
3
Volume (m /hr x 1000)
25
20
15
10
5
0
12
10
8
6
4
2
0
60% WOV
50% WOV
70% WOV
80% WOV
90% WOV
RPM
BHP
% WOV
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
DO
NO
T S
EL
EC
T
TO
T
H
E
LE
FT
O
F
TH
IS
S
YS
TE
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