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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.
Plenum Size
CFM OV
STATIC PRESSURE (in. wg)
123456789
RPM #)1 RPM #)1 RPM #)1 RPM #)1 RPM #)1 RPM #)1 RPM #)1 RPM #)1 RPM #)1
36000 1968 10.2 648 16.7 714 23.9 31.2 832 38.8 887 46.7
39000 2132 609 11.7 680 18.7 743 26.2 801 34.1 42.1 909 1007 67.9
42000 2296 713 20.9 773 28.8 829 37.2 882 932 980 63.4 1028 72.6 1072 82.1
2460 681 746 23.4 803 31.6 40.3 908 1004 67.9 1049 77.6 1093 87.4
48000 2624 717 17.6 779 26.0 34.6 888 43.7 937 984 63.1 1029 72.8 1072 82.8 1114 93.1
2788 20.0 814 28.9 868 37.9 918 47.4 966 1011 67.6 78.0 1098 88.3 1138 99.0
791 22.6 848 31.9 901 949 996 61.6 1040 72.3 1082 83.4 1124 94.2 1164
3116 829 884 934 982 1026 66.2 1069 77.2 1110 88.7 100 1189 112
60000 3280 866 28.6 919 38.9 968 1014 60.1 71.1 1099 1139 94.3 1178 106 119
63000 3444 904 32.0 42.8 1003 1047 1090 76.4 1129 88.1 1170 100 1207 113 1244 126
66000 3608 942 992 47.0 1038 1081 70.2 1122 81.9 1161 94.0 1199 107 1236 119 1272 133
69000 3772 980 39.8 1028 1073 87.9 1193 100 1230 113 1267 126
RPM 807
Inlet Sound Power, L
8J
<E#SFG
-12
XBUUT>
1234 678L
8J
A
100 83 73 71 68 61 74
80 82 79 69 64 60 48 69
60 82 78 67 62 47 67
79 76 67 62 48 66
100 91 93 82 78 77 72 67 61 83
80 88 89 77 72 69 61 77
60 86 88 69 66 62
87 89 76 69 66 63 61 76
700
100 92 99 87 81 77 73 92
80 91 99 93 83 78 74 71 68 88
60 90 94 88 79 74 71 69 67 84
92 96 89 79 74 71 69 68
1000
100 97 101 102 97 91 87 83 100
80 93 98 100 93 89 84 79 77 96
60 91 97 90 79 78 77 93
92 99 100 89 84 80 79 78 94
1281
100 102 106 109 104 101 97 94 90 107
80 98 102 107 100 96 91 86 83 103
60 100 104 98 92 87 84 82 100
96 103 108 99 91 87 84 83 102
RPM 807
Outlet Sound Power, L
8P
<E#SFG
-12
XBUUT>
1234 678L
8P
A
100 83 84 80 79 69 62 80
80 82 81 76 70 76
60 80 78 74 74 68 62 74
79 77 74 74 68 61 74
100 87 92 87 82 78 73 66 88
80 87 91 84 82 78 73 69 63 84
60 87 89 84 81 77 71 67 63 83
92 92 88 80 73 68 63 86
700
100 90 98 99 94 90 87 83 78 97
80 88 97 96 91 86 82 79 74 93
60 90 94 89 84 80 76 71 91
94 96 94 90 80 76 71 92
1000
100 97 102 107 104 100 92 89 106
80 100 104 101 96 90 86 83 102
60 97 100 102 97 92 87 84 80 99
99 103 103 97 92 87 83 79 99
1281
100 102 107 111 111 107 102 98 96 112
80 100 104 108 107 103 97 93 90 108
60 102 108 104 99 90 87 106
103 108 111 99 94 90 86 107
27
Plenum Size 49
QEP Class I Maximum rpm 780
QEP Class II Maximum rpm 1017
QEP Class III Maximum rpm 1281
QEP Motor on Frame Limit 326T
Minimum Motor Size 3 [hp]
Wheel Diameter
49.00
1245
[in.]
[mm]
Peak Power
(rpm / 245)
3
(rpm / 270)
3
[hp]
[kW]
Wheel Outlet Velocity
cfm / 18.4
m
3
/s / 10.9
[ft/min]
[m/s]
Tip Speed
rpm x 12.8
rpm x 0.0652
[ft/min]
[m/s]
% Wide Open Volume (%WOV)
cfm / (rpm x 0.740)
m
3
/hr / (rpm x 1.257)
[%]
[%]
Imperial data — Metric data
D
O
N
O
T
S
E
L
E
C
T
T
O
T
H
E
L
E
F
T
O
F
T
H
I
S
S
Y
S
T
E
M
C
U
R
V
E
0
2
4
6
8
10
12
14
90%
80%
70%
60%
1281
1137
1017
903
780
665
528
419
rpm
hp
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
% WOV
15
10
7½
5
20
25
30
40
50
60
75
100
125
150
0
5
10
15
20
25
30
Static Pressure (in. wg)
Static Pressure (Pa x 100)
3
Volume (m /hr x 10,000)
01 2 3 4 5 6
7
8
9
10
Volume (cfm x 10,000)
0
2
4
6
8
10
12
14
16