McQuay IM 987 19
Mechanical Installation
Figure 20: RDS Roof Curb Assembly Instructions
Table 3: Rds Roof Curb Assembly Instructions
Unit size Fan
X Y XX YY
Unit size
Return
fan
X Y XX YY
in mm in mm in mm in mm in mm in mm in mm in mm
800–802C
None 24.0 610 82.0 2083 6.8 173 1.5 38
800–802C
None 24.0 610 82.0 2083 6.8 173 1.5 38
(2) 15” FC 24.0 610 82.0 2083 6.8 173 1.5 38 (2) 15" FC 24.0 610 82.0 2083 6.8 173 1.5 38
30" AF 30.0 762 76.0 1930 6.8 173 4.5 114 30" AF 30.0 762 76.0 1930 6.8 173 4.5 114
40" AF 36.0 914 78.0 1981 14.8 376 3.5 89 40" AF 36.0 914 78.0 1981 14.8 376 3.5 89
D
Return
Air
F
B
F
E
"X"
Inside
"Y"
Inside
85.00"
(2159 mm)
62.80"
(1594 mm)
A
B
E
"YY"
"XX"
D
See Detail "A"
38.80"
(984 mm)
C
G
G
C
H
H
A
20.00"
(508 mm)
Inside
76.00" (1930 mm)
Inside
6.80"
(173 mm)
1.50"
(38 mm)
7.50"
(191 mm)
2.00"
(5.1 mm)
Supply
Air