72
CLCH-SVX07C-EN
Component Installation Requirements
Connections made directly to the discharge opening of a housed fan should have a minimum of
three fan diameters of straight duct before any turns or transitions. The ductwork should be the
same size as the fan discharge opening. The first turn of the connection should be in the same
direction as the fan rotation as shown in
Figure 57
. The air that the fan discharges into the duct is
extremely turbulent and requires some length of duct to stabilize. Abrupt changes in ductwork
directly off the fan discharge may adversely affect fan performance and acoustics.
Damper Connections
For standard damper sections, size the attached ductwork to fit the opening of the damper. The duct
opening dimensions should be in the unit submittals. Ensure the insulation does not obstruct the
damper opening when using a lined duct (see
Figure 58
and
Figure 59
).
Figure 57. Typical discharge ductwork recommendations
Splitters or
turning vanes
Vane turns in same
direction as fan rotation
3 fan
diameter
minimum
Figure 58. Typical section with duct flat/flange connection-
uninsulated or externally insulated
Figure 59. Typical section with duct flat/flange connection-
internally insulated
Unit
Section
Flat Connection
Uninsulated Duct
Airflow
Unit
Section
Flat Connection
Insulated Duct
Airflow
Summary of Contents for AM4A0A18S11SA Series
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Page 100: ...96 CLCH SVX07C EN Installation Electrical Figure 84 Typical VFD wiring schematic ...
Page 101: ...CLCH SVX07C EN 97 Installation Electrical Figure 85 Typical starter wiring schematic ...
Page 135: ...CLCH SVX07C EN 131 Notes ...
Page 146: ...10 1 2 STEP 8 Lift the Coil section up and away from the Blower section Set aside ...
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