Daikin RDT Installation And Maintenance Manual page 22

RPS/RDT Assembly instructions
1. Set curbing parts A through K per dimensions shown
over roof opening or on a level surface. Note location of
return and supply air openings.
2. If applicable, set other curbing parts (D, L, M, etc.) in
place making sure that the orientation complies with the
assembly instructions. Check alignment of all mating bolt
holes. See Detail A.
3. Bolt curbing parts together using fasteners provided.
Tighten all bolts finger tight.
4. Square entire curbing assembly and securely tighten all
bolts.
5. Position curb assembly over roof openings. Curb must
be level from side to side and over its length. Check that
top surface of the curb is flat with no bowing or sagging.
Figure 24: RPS/RFS Roof Curb Assembly
IM 893-10 • ROOFPAK SINGLEZONE UNITS
(Figure 24)
6. Weld curbing in place. Caulk all seams watertight.
7. Flash curbing into roof as shown in Detail B.
8. Parts E and F are not required on units with no return
9. Parts G and H are not required on units with no supply
10. Be sure that electrical connections are coordinated (see
22
Remove backing from 0.25ʺ (6 mm) thick × 1.50ʺ (38
mm) wide gasketing and apply to surfaces shown by
cross-hatching.
shaft within the curb perimeter.
shaft within the curb perimeter.
Figure 25).
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