Greenheck Fan SQ - Manual (Page 18)

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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 Standard 301. Values shown are for installation
type B: free inlet hemispherical fan sone levels.
SQ 140 - Direct Drive
Model Number
Motor
HP
Fan
RPM
CFM / Static Pressure in Inches wg
0 0.25 0.375 0.5 0.625 0.75 1 1.375 1.5 1.75
SQ-140-C 1/8 860
CFM 1637 1316 1033
BHP 0.12 0.13 0.13
Sones 7.0 6.2 5.9
SQ-140-B 1/3 1140
CFM 2170 1942 1818 1666 1446 1121
BHP 0.27 0.29 0.3 0.3 0.3 0.27
Sones 10.8 10.1 10.0 9.8 9.6 9.4
SQ-140-A 1 1725
CFM 3283 3139 3065 2985 2905 2825 2645 2268 2085 1624
BHP 0.93 0.97 0.98 1 1.01 1.03 1.03 1.03 1.01 0.93
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
DO
N
OT
S
EL
EC
T
TO
T
H
E
LE
FT
O
F
TH
IS
S
Y
S
TE
M
C
U
R
VE
0 500 1000 1500 2000 2500 3000 3500
0.0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
Static Pr
essur
e in. wg
cfm
m 3 /hr
Static Pr
essur
e Pa
1725
1140
860
RPM
Density 0.075 lb/ft 3
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).
*May be greater depending on motor.
**Weight shown is largest cataloged Open Drip Proof motor.
22
(559)
23
(584)
*19 7 ⁄
8
(505)
23
(584)