Section 9. Connecting The Duct Work - Trane GAM5B0A18M11EB Installation, Operation And Maintenance Manual

Section 9. Connecting the Duct work

9.1 Duct Connection Considerations
Important: Due to the unique design of this unit,
which allows the electrical wiring to be routed
within the insulation, do not screw, cut, or otherwise
puncture the unit cabinet in any location other than
the ones illustrated in this Installer Guide or in an
approved accessory's Installer Guide.
Important: Under no conditions should metal
strapping be attached to the unit to be used as support
mechanisms for carrying or suspension purposes.
Important: On units with sheet metal returns: Return
air plenum must be flanged. Sheet metal drill point
screws must be 1/2" in length or shorter.
• The supply and return air ducts must be connected
to the unit with non flammable duct connectors.
• See the Outline drawing for sizes of the duct
connections.
• After the ducts are secured, seal around the
supply and return ducts to prevent air leakage.
• Insulate all duct work that will be outside of
conditioned spaces.
• Convertible Duct Flange Kits are available to
connect the supply plenum or for mounting on the
discharge opening to provide a "flush fit" for 1-1/2"
duct board applications.
• If front or rear return is required, the air handler
must be elevated - placed on a pedestal or plenum
and duct must be connected to this pedestal or
plenum.
• If side return is required, the Side Return Kit
# BAYSRKIT100A accessory must be used. A
remote filter will be required.
• To ensure maximum efficiency and system
performance, the existing supply and return duct
system static pressures must not exceed the
total available static pressure of the air handler.
Reference ACCA Manual D, Manual S and Manual
RS along with the air handler Product Data and
Service Facts for additional information.
Note: Side return is not approved without Side
Return Kit # BAYSRKIT100. More than one Side
Return Kit may be necessary depending on the
application. Refer to the Installation Guide in
BAYSRKIT100 for approved duct connections,
sizing, number, transitions, and accessory
application.
Note: Duct work must be supported as appropriate.
See National and local codes for guidelines. Do not
depend on the unit to support duct work.
20
Screws allowed in
first 3/4" of bottom
3/4" cross member.