Trane DFOA - Installation; Figure 16. DFOA Roof Curb models 109-118 with mixing box

36 Direct-Fired Make-up Air • MUA-SVX01A-EN
Installation
Note 15. Curb to be shipped loose and assembled in the field.
Curb must be square and level.
Curb requires intermediate structural support and is not to be corner post mounted.
Gaskets to be shipped with unit.
Bolting accessories shipped with curb.
Curb drawings shown are for units which have controls on the "standard" side.
Figure 16. DFOA Roof Curb models 109-118 with mixing box
Table 7. DFOA Roof Curb models 109-118 with mixing box
Model
Dimensions (feet/inches)
ABCDE
109 10 3/8" 1’ - 3/8" 11 15/16" 11 3/4" 1’ - 10 13/16"
112 1’ - 1 9/16" 10 13/16" 1’ - 3 15/16" 9 7/8" 1’ - 8 7/8"
115 1’ - 4" 9 5/8" 1’ - 6 15/16" 8 3/8" 1’ - 7 3/8"
118 1’ - 7" 9 5/8" 1’ - 10 1/16" 5 1/8" 1’ - 7 3/8"