The HVACComponentSPREFMap sheet defines mapping between Smart 3D part numbers of HVAC components and the PDMS SPREF attribute.
For duct bends, supports, duct reducers, transitions, and straights. This value can be a part number or a concatenated string that includes the specification name, HVAC component type (duct bend/duct support/duct reducer/transition/straight), cross section type (round/rectangular/oval/flat oval/UShape), separated by a dash "-". For example, you can type Lindab Spec-DuctBend-Round.
Type the value for the SPREF attribute to which the S3D Value setting is to be mapped.