Instruction Manual

22
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.
1
(25)
SQ 140 - Direct Drive
Motor HP
Fan RPM
CFM / Static Pressure in Inches wg
Direct 0.000 0.250 0.375 0.500 0.625 0.750 1.000 1.375 1.500 1.75
140
VG-3/4
C-1/8
860
CFM 1637 1317 1033
BHP 0.12 0.13 0.13
Sones 7.0 6.2 5.9
B-1/3
1140
CFM 2170 1942 1818 1667 1447 1122
BHP 0.270 0.290 0.300 0.300 0.300 0.270
Sones 10.8 10.1 10.0 9.8 9.6 9.4
1550
CFM 2950 2790 2703 2614 2524 2429 2188 1553
BHP 0.67 0.71 0.72 0.74 0.75 0.75 0.75 0.69
Sones 16.7 16.2 15.8 15.6 15.5 15.3 14.8 13.7
VG-1
A-1
1725
CFM 3284 3140 3065 2985 2906 2826 2646 2268 2085 1625
BHP 0.930 0.970 0.980 1.000 1.010 1.030 1.030 1.030 1.010 0.930
Sones 20 19.3 19.0 18.7 18.6 18.4 18.2 17.2 16.7 15.9
0 1000 2000 3000 4000 5000
0
100
200
300
400
500
0 500 1000 1500 2000 2500 3000 3500
0.0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
1725
1140
860
Static Pressure (in. wg)
Volume (cfm)
Volume (m
3
/hr)
Static Pressure (Pa)
RPM (Direct)
RPM (Vari Green)
Density 0.075 lb/ft
Density 1.2 kg/m
3
3
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
Damper size = 20 x 20 (508 x 508)
Unit weight** = 104 (47)
Housing thickness = 18 ga
Outlet velocity = 0.364 x cfm
Dimensions shown in inches (millimeters) and weight is
shown in pounds (kilograms).
**Weight shown is largest cataloged Open Drip Proof motor.
22
(559)
23
(584)
19
7
⁄8
(505)
23
(584)