Plenum Size
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.
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
30000 1988 638 718 14.0 790 19.9 26.0 919 32.3 980 38.9 1036
33000 2186 684 10.2 761 16.0 829 22.3 892 29.0 1008 42.7 1064 49.9 1116
36000 732 12.0 18.3 869 930 32.1 987 39.4 1042 46.7 1093 1144 62.1 1193 70.1
39000 780 14.1 849 20.9 911 27.9 969 1024 43.2 1076 1127 1174 67.2 1222
42000 2783 829 16.4 23.7 31.2 1010 39.0 1062 47.2 1113 1161 64.2 1208 72.7
2982 879 19.1 941 26.9 999 34.8 43.0 1103 60.4 1197 69.6 1243 78.6 1287 87.8
48000 3180 929 22.0 989 30.3 1044 38.8 47.3 1143 1191 74.9 1278 84.8 1321 94.4
3379 979 1036 34.0 1089 43.0 1139 1186 61.3 1231 70.8 1274 80.7 1317 90.9 101
1030 29.0 38.1 1136 1184 1229 66.8 1272 76.7 86.9 97.4 108
3777 1081 33.0 1134 42.6 1183 1229 1273 72.7 83.0 1396 104
60000 3976 1133 37.4 1183 47.4 1230 68.3 1318 79.1 89.7 1398 101
63000 4174 1184 42.1 1232 1278 63.6 1322 74.6 1363 1403 96.9
RPM 807
Inlet Sound Power, L
8J
<E#SFG
-12
XBUUT>
1234 678L
8J
A
400
100 83 71 70 62
80 81 82 71 64 62 48 70
60 81 81 69 62 48 68
80 77 68 62 48 67
100 88 94 82 77 77 72 67 61 83
80 90 78 72 69 64 61 78
60 84 89 76 69 66 62 76
90 77 69 66 62 60 77
800
100 90 98 97 87 82 78 74 93
80 90 97 96 83 79 72 69 90
60 88 94 91 80 71 69 67 86
89 97 92 79 72 69 68 87
1100
100 96 99 102 96 94 90 87 82 100
80 92 96 100 92 89 83 79 77 96
60 89 93 98 89 79 77 76 93
90 97 101 89 84 79 78 77
1411
100 101 104 108 104 100 97 93 90 106
80 96 101 100 91 86 83 102
60 94 98 103 98 92 87 83 81 99
94 101 107 99 91 87 84 83 101
RPM 807
Outlet Sound Power, L
8P
<E#SFG
-12
XBUUT>
1234 678L
8P
A
400
100 81 80 79 77 70 64 81
80 80 83 76 72 66 61 77
60 80 80 74 74 70 63
80 79 74 74 70 62
100 92 86 82 78 73 66 87
80 84 92 83 81 78 72 69 63 84
60 90 84 81 77 70 67 62 83
90 92 87 80 73 68 63 86
800
100 88 96 99 91 87 84 79 97
80 87 98 92 87 82 80 94
60 89 90 81 77 72 92
92 98 91 86 81 77 72 93
1100
100 96 100 106 104 100 92 88
80 94 98 104 100 96 90 86 83 101
60 96 99 102 97 92 87 83 79 99
97 102 103 97 92 87 83 79 99
1411
100 100 110 110 107 102 98 111
80 99 103 107 107 103 97 92 89 108
60 101 104 107 104 99 94 90 86
101 106 110 99 94 90 86 106
26
Plenum Size 44
QEP Class I Maximum rpm 860
QEP Class II Maximum rpm 1120
QEP Class III Maximum rpm 1411
QEP Motor on Frame Limit 326T
Minimum Motor Size 3 [hp]
Wheel Diameter
44.50
1130
[in.]
[mm]
Peak Power
(rpm / 288)
3
(rpm / 318)
3
[hp]
[kW]
Wheel Outlet Velocity
cfm / 15.1
m
3
/s / 8.88
[ft/min]
[m/s]
Tip Speed
rpm x 11.7
rpm x 0.0592
[ft/min]
[m/s]
% Wide Open Volume (%WOV)
cfm / (rpm x 0.554)
m
3
/hr / (rpm x 0.941)
[%]
[%]
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%
1411
1337
1215
1120
985
860
782
620
492
15
10
7½
5
20
25
30
40
50
rpm
hp
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
% WOV
60
75
100
125
0
5
10
15
20
25
30
Static Pressure (in. wg)
Static Pressure (Pa x 100)
024
6
810
Volume (cfm x 10,000)
Volume (m
3
/hr x 10,000)
012 3456
7
8