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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
26000 2106 822 12.4 899 17.4 971 22.7 1038 28.1 1102 33.6 1164 39.4 1222 1286
28000 2269 778 8.90 861 13.9 19.1 1003 24.8 1069 30.4 1130 36.2 1189 42.2 1247 48.4 1301
30000 2431 821 10.2 900 971 21.0 1038 26.8 1100 32.9 1160 39.0 1217 1272 1326
32000 11.6 941 17.2 1009 23.0 1074 29.1 1134 1192 42.0 1247 1300 62.1
34000 909 13.1 982 19.1 1048 1110 1168 38.1 1224 1278 1330 1380 66.0
36000 2917 14.8 1024 21.1 1088 1147 34.0 40.9 48.1 1310 1361 62.7 1410 70.1
38000 3079 998 16.7 1066 23.3 1128 30.0 1186 36.8 1240 43.9 1293 1344 1393 66.8 1441 74.4
40000 3241 1043 18.8 1109 1169 32.7 39.8 1278 47.2 1330 1379 62.7 1426 70.8 1472 79.0
42000 3403 1089 21.0 28.2 1210 43.0 1317 1366 1414 66.6 1461 74.9
44000 30.9 38.6 46.4 1403 62.4 70.7 1496 79.3 88.1
46000 3727 1180 26.1 1239 33.9 1294 41.9 1346 1442 1487 83.9
48000 3889 1227 28.9 1284 37.0 1337 1387 62.3 1481 70.9 79.7
RPM 807
Inlet Sound Power, L
8J
<E#SFG
-12
XBUUT>
1234 678L
8J
A
100 81 86 76 69 71 62 76
80 79 83 72 64 62 49 71
60 79 82 70 62 48 69
81 79 69 62 60 49 68
600
100 82 76 76 72 66 61 83
80 82 91 78 70 69 63 60 78
60 81 89 76 68 61 76
82 91 77 68 66 61 77
100 88 96 97 86 84 81 76 72 91
80 87 96 82 78 73 70 67 89
60 92 91 78 74 70 67 66
86 92 78 74 70 68 67 86
1200
100 94 97 102 94 89 86 82 99
80 90 94 100 91 89 83 78 76
60 88 91 98 88 78 76 92
88 94 102 88 84 78 77 76
100 99 103 107 103 100 97 93 89 106
80 94 99 104 100 91 86 82 102
60 92 97 101 98 92 86 82 81 99
92 99 99 91 86 83 82 101
RPM 807
Outlet Sound Power, L
8P
<E#SFG
-12
XBUUT>
1234 678L
8P
A
100 79 80 79 77 70 66 81
80 78 84 76 72 66 61 77
60 79 81 74 74 71 63 60
80 79 73 73 71 62
600
100 82 92 84 82 77 73 66 86
80 81 92 82 80 78 71 69 63 83
60 82 89 83 80 77 70 66 62 82
89 91 86 84 80 72 67 62
100 94 98 94 90 86 83 77 96
80 92 96 91 81 78 74 93
60 86 92 94 88 83 79 76 71 90
89 96 94 89 79 76 71 91
1200
100 94 98 103 100 94 91 87
80 92 103 99 89 82 101
60 97 101 96 92 86 83 79 98
100 103 96 91 86 82 78 99
100 98 104 108 110 106 102 98 111
80 97 101 106 107 102 97 92 89 108
60 99 103 104 99 94 90 86
99 108 99 94 89 106
Plenum Size 40
QEP Class I Maximum rpm 949
QEP Class II Maximum rpm 1238
QEP Class III Maximum rpm
QEP Motor on Frame Limit 326T
Minimum Motor Size 2 [hp]
Wheel Diameter
40.25
1022
[in.]
[mm]
Peak Power
(rpm / 341)
3
(rpm / 376)
3
[hp]
[kW]
Wheel Outlet Velocity
cfm / 12.3
m
3
/s / 7.27
[ft/min]
[m/s]
Tip Speed
rpm x 10.5
rpm x 0.0535
[ft/min]
[m/s]
% Wide Open Volume (%WOV)
cfm / (rpm x 0.410)
m
3
/hr / (rpm x 0.697)
[%]
[%]
Imperial data — Metric data
024
6
810
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
0123456
0
2
4
6
8
10
12
14
90%
80%
70%
60%
492
Static Pressure (in. wg)
Volume (cfm x 10,000)
Volume (m
3
/hr x 10,000)
1560
1438
1238
1060
949
841
667
15
10
7½
5
3
20
25
30
40
50
rpm
hp
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
% WOV
60
75
100
Static Pressure (Pa x 100)
0
5
10
15
20
25
30