Damper Module Connections; Discharge Plenum Connections - Trane Climate Changer M Series Installation Operation & Maintenance

Connections made directly to the discharge opening of the 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
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.
Figure 40. Typical discharge ductwork recommendations

Damper Module Connections

For standard damper modules, 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 41. Typical module with duct flat/flange connections

Discharge Plenum Connections

Discharge plenum modules are available with or without openings. Modules with openings have
a framed opening that can be used to secure the duct to the frames. If the duct is lined, it is important
the insulation does not obstruct the opening of the module.
For discharge plenum modules with field-cut openings, attach the duct to the side panel.
CLCH-SVX03C-EN
Splitters or
turning vanes
Vane turns in
same direction
as fan rotation
Component Installation Requirements
Figure 40. The air that the fan discharges into the duct is extremely
Figure 41).
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