Daikin RDT-135c Installation And Maintenance Manual page 26

Mechanical Installation: Roof Curb Assembly and Installation
Figure 29. RPS/RFS roof curb assembly
Equal Length
Side Supports
"X"
Inside
"X"
"Y"
"Y"
Inside
85"
2
8
4
Table 6: Roof curb assembly dimensionsRPS/RFS dimensions
Unit size Fan
015–040C None
(2) 15" FC
30" AF
40" AF
045C–075C All units
80C–135C All units
Note: These dimensions do not apply to units with energy recovery wheels.
24
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
L
B
E
F
F
Return
Air
A
E
Detail B
1
3
7
9
6
9
Note: Height of perimeter curb and
condensing section support are not equal.
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
38.0 965 87.0 2210
62.0 1575 87.0 2210
M
"W"
inside
G
C
D
D
B
62.8"
Condenser
section
support
(RPS only)
9
5
4
XX YY
Unit size
in mm in mm
6.8 173 1.5 38 015C–030C
6.8 173 1.5 38 036C and
040C
6.8 173 4.5 114 045C–075C
376 3.5 89 80C–90C
8.8 222 3.5 89 105C—135C
8.8 222 3.5 89
Condenser
Section Support
1.5"
6.8"
76"
Inside
A
H
Supply
H
Air
G
C
38.8"
See Detail "A"
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)
Detail C
2
1
3
8
9
5
7
4
Main
unit curb
Z
in mm
45.9 1165
94.0 2388
77.0 1956
113 2870
113 2870
K
7.5"
2"
6
W
in mm
20.0 508
20.0 508
28.0 712
38.0 965
46.0 1168
IM 738-2