Qei-49 class ii, Performance data, Qei-49ii – Greenheck Fan Mixed Flow Fans Belt and Direct Drive QEI-L User Manual
Page 47: Specification data
47
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-49 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
27000
1078
393
3.72
441
6.09
530
11.9
616
18.7
697
26.0
30000
1198
427
4.55
470
7.05
551
13.1
631
20.2
707
28.0
778
36.2
33000
1317
462
5.52
501
8.18
576
14.4
648
21.8
719
30.0
789
38.6
853
47.7
36000
1437
498
6.65
533
9.48
604
16.0
669
23.5
736
32.0
800
41.1
864
50.6
923
60.5
39000
1557
534
7.95
565
10.9
631
17.7
694
25.5
754
34.2
816
43.6
874
53.6
933
63.9
988
74.6
42000
1677
570
9.43
599
12.6
660
19.6
719
27.7
776
36.6
834
46.3
890
56.6
944
67.4
999
78.5
45000
1797
607
11.1
634
14.5
691
21.8
748
30.1
801
39.2
852
49.1
907
59.7
959
70.9
1010
82.5
48000
1916
644
13.0
670
16.6
722
24.2
775
32.7
826
42.1
876
52.3
925
63.0
976
74.5
51000
2036
681
15.1
705
18.9
754
26.9
804
35.6
854
45.3
901
55.6
947
66.7
994
78.3
54000
2156
718
17.5
741
21.4
786
29.8
835
38.8
882
48.7
927
59.2
972
70.6
1014
82.4
57000
2276
755
20.1
777
24.2
820
32.9
866
42.3
910
52.3
955
63.2
997
74.7
60000
2396
793
23.0
814
27.3
854
36.4
898
46.1
940
56.4
983
67.5
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
300
100
82
75
72
73
69
58
50
44
73
300
100
85
78
76
77
71
61
53
47
77
80
79
72
69
70
65
56
47
39
70
80
84
77
75
75
69
59
51
44
75
60
77
69
67
69
64
55
47
39
69
60
83
75
73
75
68
59
51
44
74
50
76
68
66
68
63
55
47
39
68
50
83
75
71
74
68
58
51
45
74
425
100
91
85
81
79
81
73
61
55
83
425
100
89
85
84
83
81
74
63
55
85
80
87
81
77
77
74
65
57
50
78
80
88
84
83
82
76
69
60
52
82
60
84
78
75
76
73
65
57
51
77
60
88
83
80
80
75
68
60
53
81
50
84
78
74
75
72
63
57
51
76
50
88
83
79
79
74
67
60
54
80
575
100
91
92
88
86
88
83
72
64
91
575
100
91
93
93
90
88
83
74
64
93
80
88
89
86
84
80
74
67
60
86
80
89
90
90
88
83
77
69
60
89
60
86
86
82
81
79
74
67
61
83
60
87
87
87
85
81
75
68
62
86
50
88
87
81
80
77
72
66
62
82
50
90
88
86
84
80
74
68
63
86
825
100
93
100
99
96
93
95
87
71
100
825
100
95
98
101
99
95
96
89
74
102
80
89
97
97
93
89
85
78
70
95
80
92
95
99
98
93
88
81
72
99
60
88
93
93
90
87
83
77
71
92
60
93
92
96
95
90
85
79
73
96
50
90
92
92
89
86
82
78
73
91
50
96
94
97
94
89
84
79
74
95
1020
100
96
102 105 102
98
99
96
80
105
1020
100
99
103 106 105 101 100
97
83
107
80
91
97
101
99
95
91
86
77
101
80
96
99
104 104
98
94
88
79
104
60
92
94
97
96
92
89
84
78
97
60
98
99
101 100
95
91
86
79
101
50
94
95
97
95
91
88
84
80
97
50
100 101 102 100
95
90
85
80
101
Static Pr
essur
e (in. wg)
Static Pr
essur
e (Pa x 100)
Volume (cfm x 1000)
3
Volume (m /hr x 1000)
0
20
40
60
80
100
120
0
5
10
15
20
DO
NO
T S
EL
EC
T
TO
T
H
E
LE
FT
O
F
TH
IS
S
Y
S
TE
M
C
U
R
VE
0
10
20
30
40
50
60
70
80
0
1
2
3
4
5
6
7
8
9
10
QEI-49II
RPM
BHP
% WOV
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
497
626
717
789
60% WOV
70% WOV
80% WOV
90% WOV
973
10
20
30
850
1020
50% WOV
40
50
75
100
Performance Data
Maximum Fan RPM
1020
Specification Data
Maximum Motor
Frame Size
405T
Minimum Motor
Starting hp
15 hp
11 kW
Wheel Diameter
60 in.
1524 mm
Approximate Weight
(Less Motor & Drives)
3100 lbs.
1406 kg.
Maximum Bhp = (Fan RPM / 231)
3
Outlet Velocity (FPM) = CFM / 24.85
Tip Speed (FPM) = Fan RPM x 15.7
% WOV = (CFM x 100) / (Fan RPM x 77.8)
Imperial data —
Metric data