Trane GRAA Installation Manual page 9

Arrangement Capacity
C 50-80
E 50-80
G 50-12
J 20-12
K 10-80
L 10-80
Figure 9 - Dimensions
Capacity W+
10,15 26-7/16 (672)
20,25,50 37-7/16 (951)
30,35,60,70 48-7/16 (1230)
40,80,12 53-15/16 (1370)
Approximate Roof Curb Weights
RA* Capacity 10,15 20,25,50 30,35,60,70 40,80,12
G 50 thru 80
J 20 thru 40
K 10 thru 40
C 50 thru 80
E 50 thru 80
G 12
J & K 50 thru 80
L 10 thru 40
J 12
L 50 thru 80
GRAA-IN-1
Roof Curbs for arrangements D
and E include an evaporative
cooler platform. See GRAA-IN-2.
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, hardware, insulation and
gasketing. See Figures 11, 17, and
18 for a complete parts list for your
curb. Check to see that all
Dimensional Data
B+
30-3/16 (767)
41-3/16 (1046)
52-3/16 (605)
57-11/16 (1465)
192 210 228
NA 197 217
NA 227 247
310 338 366
NA 375 403
RA*
G
J
K
C
E
G
J & K
L
J
L
238
Notes:
227
RA* = Rooftop Arrangement
+ Dimensions are in inches.
257
(Dimensions in parenthesis are in millimeters.)
1 lb. = 0.453 kg
381
NA = Not Applicable
418
components are included. Refer to
Figures 11 thru 18 to see if all
other field supplied parts are also
on hand.
Provide a suitable opening, or two
openings, in the roof as suggested
per Figures 10 and 12. These
return and/or supply air ductwork
openings have been calculated to
include a one inch clearance on
each side of the ductwork. The
installer may determine other
opening(s) to accept return and/or
supply air ducts to suit particular
needs.
Capacity F+ H+
50 thru 80
37-1/8 133-1/4
20 thru 40
(943) (3385)
10 thru 40
30-7/8 123
50 thru 80
(765) (3124)
12
37-5/16 159-5/16
50 thru 80
(948) (4046)
10 thru 40
12 36-15/16 185-5/16
50 thru 80 (938) (4707)
J+
129-1/2
(3289)
119-1/4
(3029)
155-9/16
(3951)
181-9/16
(4612)
9