Qei-18 class ii, Performance data, Qei-18ii – Greenheck Fan Mixed Flow Fans Belt and Direct Drive QEI-L User Manual
Page 27: Specification data
27
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-18 Class II
CFM
OV
STATIC PRESSURE (inches wg)
0.5
1
2
3
4
5
6
7
8
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
3800
1101
1124
0.64
1239
0.97
1467
1.74
1690
2.65
1900
3.67
4200
1217
1219
0.79
1326
1.14
1538
1.98
1738
2.88
1934
3.94
2120
5.09
2290
6.31
4600
1333
1315
0.96
1414
1.34
1609
2.25
1787
3.15
1977
4.24
2154
5.42
2323
6.69
2478
8.02
5000
1449
1413
1.16
1503
1.56
1682
2.50
1858
3.50
2024
4.56
2193
5.78
2356
7.09
2511
8.47
2656
9.91
5400
1565
1511
1.40
1595
1.82
1758
2.77
1929
3.89
2079
4.94
2241
6.18
2394
7.51
2545
8.93
2689
10.4
5800
1681
1611
1.66
1690
2.11
1844
3.11
2001
4.29
2150
5.42
2289
6.60
2441
7.98
2582
9.42
2723
10.9
6200
1797
1711
1.96
1786
2.44
1932
3.48
2075
4.66
2221
5.94
2354
7.14
2489
8.48
2629
9.97
2760
11.5
6600
1913
1812
2.29
1883
2.81
2020
3.89
2150
5.07
2293
6.50
2424
7.76
2544
9.06
2676
10.5
7000
2028
1913
2.66
1981
3.21
2110
4.34
2236
5.57
2366
6.98
2495
8.42
2615
9.77
2726
11.2
7400
2144
2015
3.07
2079
3.66
2200
4.83
2323
6.12
2440
7.49
2568
9.11
2686
10.5
7800
2260
2117
3.53
2178
4.16
2295
5.38
2411
6.70
2521
8.10
2641
9.71
2757
11.3
8200
2376
2219
4.03
2277
4.70
2390
5.98
2500
7.34
2608
8.78
2715
10.4
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
800
100
66
75
67
66
63
65
51
43
70
800
100
73
79
66
69
68
66
54
45
72
80
63
71
64
63
62
62
51
41
67
80
70
76
63
67
66
63
53
46
70
60
62
69
63
61
62
63
53
42
67
60
70
74
63
65
66
63
53
46
70
50
77
73
69
65
62
62
50
41
68
50
70
75
63
65
65
62
53
47
69
1100
100
70
78
72
72
68
72
60
51
76
1100
100
78
83
74
76
74
72
63
53
79
80
62
73
68
67
66
66
57
48
71
80
73
77
69
73
72
68
60
50
76
60
63
72
66
66
65
66
57
49
71
60
75
75
68
71
71
68
60
52
74
50
66
72
67
65
64
65
56
49
70
50
77
77
70
71
70
68
60
53
75
1600
100
78
79
82
80
78
76
80
64
85
1600
100
87
86
83
85
84
78
79
64
88
80
71
76
77
75
74
73
67
60
79
80
84
80
77
81
80
75
70
61
84
60
73
76
74
73
72
72
67
61
77
60
85
80
77
79
78
74
70
62
82
50
77
77
76
73
72
71
66
61
77
50
86
82
78
79
77
74
69
62
82
2200
100
81
84
89
88
87
84
87
78
93
2200
100
89
89
91
92
91
86
86
80
96
80
75
78
83
83
82
80
76
69
87
80
85
86
85
88
89
83
79
73
92
60
79
81
84
81
79
78
75
71
85
60
89
88
86
86
87
82
78
73
90
50
83
83
84
81
78
77
74
70
85
50
91
89
88
87
86
81
77
73
90
2777
100
85
88
89
93
93
90
91
87
98
2777
100
93
94
93
96
97
93
91
88
101
80
80
83
85
89
90
87
82
76
93
80
88
91
89
92
94
90
86
79
97
60
84
86
85
88
87
85
80
76
91
60
94
94
92
89
92
88
84
79
95
50
87
89
89
88
86
84
80
76
91
50
96
95
92
91
92
88
84
79
96
Static Pr
essur
e (in. wg)
Static Pr
essur
e (Pa x 100)
Volume (cfm x 1000)
3
Volume (m /hr x 1000)
0
5
10
15
0
5
10
15
20
25
DO
N
OT
S
EL
EC
T
TO
T
H
E
LE
FT
O
F
TH
IS
S
YS
TE
M
C
U
R
VE
0
1
2
3
4
5
6
7
8
9
10
11
0
1
2
3
4
5
6
7
8
9
10
11
12
QEI-18II
RPM
BHP
% WOV
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
1219
2
3
1535
1757
2083
2385
1
50% WOV
60% WOV
70% WOV
80% WOV
90% WOV
5
2624
7½
10
15
2777
Performance Data
Maximum Fan RPM
2777
Specification Data
Maximum Motor
Frame Size
254T
Minimum Motor
Starting hp
1/3 hp
.25 kW
Wheel Diameter
22.25 in.
565 mm
Approximate Weight
(Less Motor & Drives)
310 lbs.
141 kg.
Maximum Bhp = (Fan RPM / 1219)
3
Outlet Velocity (FPM) = CFM / 3.45
Tip Speed (FPM) = Fan RPM x 5.83
% WOV = (CFM x 100) / (Fan RPM x 3.80)
Imperial data —
Metric data