Daikin RoofPak RPS Series Installation And Maintenance Manual page 20

RPS/RDT Assembly instructions
1. Set curbing parts A through K per dimensions shown
over roof opening or on a level surface (see
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 (see Detail A). Check alignment of
all mating bolt holes.
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 29: RPS/RFS Roof Curb Assembly
Using remaining side supports
in this area, align lengths on
opposite sides of assembly
M
and install a cross support
D at each side.
L
D
Equal Length
L
Side Supports
B
X
Inside
E
F
X X
F
Return
Y
Air
A
Y
Inside
85"
Table 6: Roof Curb Assembly Dimensions
Unit size Fan
None
15" FC (2)
015–040C
30" AF
40" AF
045C–075C All units
80C–135C All units
Note: These dimensions do not apply to units with energy recovery wheels.
IM 926-3 • ROOFPAK APPLIED SYSTEMS
Figure
Z
1.5"
6.8"
M
W
inside
G
C
H
Supply
H
Air
D
D
See Detail A
E
B
62.8"
"X" "Y"
in . (mm) in . (mm)
24.0 (610) 82.0 (2083)
24.0 (610) 82.0 (2083)
30.0 (762) 76.0 (1930)
36.0 (914) 78.0 (1981) 14.8 (376)
38.0 (965) 87.0 (2210)
62.0 () 1575 87.0 (2210)
6. Weld curbing in place. Caulk all seams watertight.
29). Remove backing from 0.25" (6 mm) thick × 1.50" (38
mm) wide gasketing and apply to surfaces shown by
cross-hatching.
7. Flash curbing into roof as shown in Detail B.
8. Parts E and F are not required on units with no return
shaft within the curb perimeter.
9. Parts G and H are not required on units with no supply
shaft within the curb perimeter.
10. Be sure that electrical connections are coordinated (see
Figure 35).
Condenser
Section Support
K
76"
Inside
A
7.5"
2"
G
C
38.8"
1. Unit Base
2. Curb Gasketing
3. 2 x 4 Nailer Strip
4. Galvanized Curb
5. Cant Strip (not furnished)
6. Roofing Material (not furnished)
7. Rigid Insulation (not furnished)
8. Counterflashing (not furnished)
9. Flashing (not furnished)
"XX" "YY"
in . (mm) in . (mm)
6.8 (173) 1.5 (38)
6.8 (173) 1.5 (38) 036C and 040C
6.8 (173) 4.5 (114)
3.5 (89)
8.8 (222) 3.5 (89)
8.8 (222) 3.5 (89)
20
Mechanical Installation
Detail B
Z
2
1
8
7
9
6
4
Note: Height of perimeter curb and
condensing section support are not equal.
Detail C
2
1
3
8
9
5
7
4
Main
unit curb
"Z"
Unit size
in . (mm)
015C–030C 45.9 (1165)
94.0 (2388)
045C–075C 77.0 (1956)
80C–90C 113 (2870)
105C 113 (2870)
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Condenser
section
support
(RPS only)
3 9
5
9
4
6
"W"
in (mm)
20.0 (508)
20.0 (508)
28.0 (712)
38.0 (965)
46.0 (1168)