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Performance certified is for installation type B: Free inlet, Ducted outlet. Performance ratings do not include the effects of appurtenances (accessories).
The sound ratings shown are loudness values in fan sones at 1.5 m (5 feet) in a hemispherical free field calculated per AMCA International Standard 301. Values shown are
for installation type B: free inlet hemispherical sone levels.
19
1
(25)
SQ 100 - Direct Drive
0 500 1000 1500 2000 2500
0
50
100
150
200
250
0 200 400 600 800 1000 1200 1400 1600
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1725
1140
860
Static Pressure (in. wg)
Volume (cfm)
Volume (m
3
/hr)
Static Pressure (Pa)
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
RPM (Direct)
RPM (Vari Green)
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
17
(432)
13
7
⁄8
(352)
17
(432)
21
(533)
Damper size = 14 x 14 (356 x 356)
Unit weight** = 56 (25)
Housing thickness = 18 ga
Outlet velocity = 0.748 x cfm
Dimensions shown in inches (millimeters) and weight is
shown in pounds (kilograms).
**Weight shown is largest cataloged Open Drip Proof motor.
Motor HP
Fan RPM
CFM / Static Pressure in Inches wg
Direct 0.000 0.100 0.125 0.250 0.300 0.375 0.500 0.625 0.750 1.000
100
VG-1/4
C-1/8 860
CFM 725 638 611
BHP 0.03 0.03 0.03
Sones 4.7 3.8 3.7
B-1/6 1140
CFM 961 898 881 786 739 657
BHP 0.06 0.07 0.07 0.07 0.07 0.07
Sones 7.4 6.6 6.5 6.1 5.9 5.6
A-1/4
1725
CFM 1455 1413 1403 1350 1327 1292 1227 1156 1078 831
BHP 0.22 0.23 0.23 0.23 0.24 0.24 0.24 0.25 0.25 0.22
Sones 13.2 12.6 12.5 11.9 11.7 11.5 11.1 10.7 10.4 9.6