Greenheck Fan SQ - Manual (Page 10)

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Typical Installation
Flexible duct (by others)
3 Wheel
Diameters
3 Wheel
Diameters
Model Number Code
The Model number system is designed to completely identify the fan. The correct code letters must be
specified to designate belt or direct drive. The remainder of the model number is determined by the size
and performance selected from the following pages.
PRESSURE LEVEL
(Belt Drive Only)
HP - High Pressure Wheel
BSQ - 240 HP - 7
MODEL CONFIGURATION
BSQ
- Belt Drive Inline Exhaust
SQ - Direct Drive Inline Exhaust
FAN SIzE
60
through 420
MOTOR HP
(Belt Drive only)
6 = 1/6 7 = 3/4 30 = 3
4 = 1/4 10 = 1 50 = 5
3 = 1/3 15 = 1 1 ⁄
2
75 = 7 1 ⁄
2
5 = 1/2 20 = 2 100 = 10
MOTOR RPM
(Direct Drive only)
A = 1725 D = 1550
B = 1140 E = 1050
C = 860
G = 1300
Model BSQ ducted inline fans are designed for the exhaust, supply, or recirculation of air in a building.
Typical installation requires ductwork on the inlet and outlet side of the fan. A minimum of three duct
diameters is required on the inlet and outlet of the fan to prevent system effect losses. See the diagram
below for a typical installation.
Installations can include flexible duct connections (by others) on either the inlet or outlet side of the fan or
both. The motor is rigid mounted and can be oriented in any direction (top, bottom, side).
The model BSQ ducted inline fan must be installed with the motor accessible for maintenance and
inspection.
External isolators are recommended, hanging (shown below) or base mounted.
Installation must meet all local governing codes and the NEC.
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