Figure 1 - dimensions, Dimensional data 2 – Sterling RT User Manual
Page 2

(U) RC001, (U)RC002, (U)RC003, (U)RC004, (U)RC006
Roof Curbs for arrangements D and E include an evap-
orative cooler platform. See pages 22 and 23.
Roof Curbs ship knocked down for ease of handling and
storage. The field assembly and mounting of the curb to
the roof is the responsibility of the installer. All curbs ship
complete with pre-assembled side and end rails, cross
member supports, ductwork connector brackets, hard-
ware, optional insulation and gasketing. See Figures 3,
33 and 34 for a complete parts list for your curb.
Check to see that all components are included. Refer to
Figures 3, 4, 5, 6, 33 and 34 to see if all other field sup-
plied parts are also on hand.
Provide a suitable opening, or two openings, in the roof
as suggested per Figures 2 and 4. These return and/or
supply air ductwork openings have been calculated to
include a one inch clearance on each side of the duct-
work. The installer may determine other opening(s) to
accept return and/or supply air ducts to suit particular
needs.
1-7/8" Typ.
Flange
12"
W Inside
B Outside
1-1/2"
Flange
F Inside
1-7/8" Typ.
Flange
1-1/2"
Flange
H Outside
J Inside
F Inside
D3834
Roof Curb
Rooftop (RA)
Capacity
Roof Curb Kit Suffix No. -
*
Kit No.
*
Arrangement (CA)
*
- 1
*
- 2
*
- 3
*
- 4
RC001-
*
B
10 thru 40
115
133
151
161
N
20 or 40
RC002-
*
D
10 thru 40
145
163
181
191
R
20 or 40
RC003-
*
B
50 thru 80
150
168
186
196
C
10 thru 40
RC004-
*
D
50 thru 80
180
198
216
226
E
10 thru 40
G
20 thru 40
RC006-
*
T
20 or 40
NA
179
197
207
U
20 or 40
Roof Curb
RC001, RC002, RC003, RC004, & RC006-
*
Kit No.
*
CAPACITY
W
†
B
†
*
- 1
10, 15
26- 7/16
30- 3/16
(672)
(767)
*
- 2
20, 25, 50
37- 7/16
41- 3/16
(951)
(1046)
*
- 3
30, 35, 60, 70
48- 7/16
52- 3/16
(1230)
(605)
*
- 4
40, 80
53-15/16
57-11/16
(1370)
(1465)
Roof Curb
Rooftop (RA)
Capacity
F
†
H
†
J
†
Kit No.
*
Arrangement (CA)
(inside)
(outside)
(inside)
RC001-
*
B
10 thru 40
29 - 5/8
71 - 1/8
67 - 3/8
N
20 or 40
(752)
(1807)
(1711)
RC002-
*
D
10 thru 40
29 - 5/8
71 - 1/8
67 - 3/8
R
20 or 40
(752)
(1807)
(1711)
RC003-
*
B
50 thru 80
29 - 5/8"
97 - 1/8
93 - 3/8
C
10 thru 40
(752)
(2467)
(2372)
RC004-
*
D
50 thru 80
29 - 5/8"
97 - 1/8
93 - 3/8
E
10 thru 40
(752)
(2467)
(2372)
G
20 thru 40
RC006-
*
T
20 or 40
37 - 3/16
107 - 5/16
103 - 9/16
U
20 or 40
(945)
(605)
(2630)
Approximate Roof Curb Kit Weights
Figure 1 - Dimensions
† Dimensions are in inches.
(Dimensions in parenthesis are in millimeters.)
† Dimensions are in inches.
(Dimensions in parenthesis are in millimeters.)
NA = Not Applicable
(RA) = Rooftop Arrangement
(CA) = Capacity
1 lb. = 0.453 kg
DIMENSIONAL DATA
2