Sterling RT - Manual (Page 12)

(U) RC011, (U)RC012
Roof Curb for arrangement D include an evaporative
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
kits ship complete with pre-assembled side and end
rails, cross member supports, ductwork connector
brackets, hardware, insulation and gasketing. See
Figure 19, 33 and 34 for a complete parts list for your
kit. Check to see that all components of the kit are
included. Refer to Figures 17 thru 23, 31 and 32 to see
if all other field supplied parts are also on hand.
Provide a suitable opening in the roof as suggested
per Figure 18 and 20. The return air opening has been
calculated to include a one inch clearance on each
side of the ductwork. The installer may determine the
opening to accept a return air duct to suit particular
needs.
1-7/8" Typ.
Flange
12"
W Inside
B Outside
1-7/8" Typ.
Flange
H Outside
F Inside
Roof Curb Rooftop (RA) Capacity Roof Curb Kit Suffix No. - *
Kit No.
*
Arrangement (CA)
*
- 1
*
- 2
*
- 3
*
- 4
RC011- * M 20 or 40 NA 85 NA 112
RC012- * P 20 or 40 NA 115 NA 142
APPROXIMATE ROOF CURB KIT WEIGHTS (LBS.)
Figure 17 - Dimensions
DIMENSIONAL DATA
NA=Not Applicable
1 lb. = 0.453 Kg
(RA) = Rooftop Arrangement
(CA) = Capacity
RC011 and RC012 - *
Kit No. * CAPACITY W
†
B
†
F
†
H
†
* -2 20 37- 7/16 41- 3/16 41 - 1/2 45 - 1/4
(951) (1046) (1054) (1149)
* - 4 40 53-15/16 57-11/16 41 - 1/2 45 - 1/4
(1370) (1465) (1054) (1149)
† Dimensions are in inches.
(Dimensions in parenthesis are in millimeters.)
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