Trane GRAA Installation Manual page 4

Arrangement Capacity
B 10-80
C 10-40
D 10-80
E 10-40
G 20-40
Figure 1 - 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 53-15/16 (1370)
Approximate Roof Curb Weights
* R A Capacity 10,15
B 10 thru 40 115
D 10 thru 40 145
B 50 thru 80
150
C 10 thru 40
D 50 thru 80
180
E 10 thru 40
G 20 thru 40 NA
4
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, optional
insulation and gasketing. See
Figures 3, 17, and 18 for a
complete parts list for your curb.
Dimensional Data
B+
30-3/16 (767)
41-3/16 (1046)
52-3/16 (605)
57-11/16 (1465)
20,25,50 30,35,60,70 40,80
133 151 161
163 181 191
168 186 196
198 216 226
179 197 207
Check to see that all components
are included. Refer to Figures 3, 4,
5, 6, 17, and 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 2 & 4. These return
and/or supply air ductwork open-
ings have been calculated to in-
clude a one inch clearance on
each side of the ductwork. The in-
staller may determine other open-
ing(s) to accept return and/or
supply air ducts to suit particular
needs.
* R A Capacity
29-5/8
B 10 thru 40
(752)
29-5/8
D 10 thru 40
(752)
B 50 thru 80 29-5/8
C 10 thru 40 (752)
D 50 thru 80 29-5/8
E 10 thru 40 (752)
37-3/16
G 20 thru 40
(945)
Notes:
* RA = Rooftop Arrangement
+ Dimensions are in inches.
(Dimensions in parenthesis are in millimeters.)
1 lb. = 0.453 kg
NA = Not Applicable
F+ H+ J+
71-1/8 67-3/8
(1807) (1711)
71-1/8 67-3/8
(1807) (1711)
97-1/8 93-3/8
(2467) (2372)
97-1/8 93-3/8
(2467) (2372)
107-5/16 103-9/16
(2726) (2630)
GRAA-IN-1