JOHNSON CONTROLS
27
SECTION 3 - HANDLING, STORAGE, AND INSTALLATION
FORM 102.20-N1
ISSUE DATE: 7/06/2016
3
FIGURE 16 - TYPICAL CURB ASSEMBLY
UNIT WALL
UNIT RACEWAY
PIPE CHASE SECTION VIEW
SECTION A-A
2 in
UNIT ROOF
CURB
CURB GASKET
CURB REST
1-7/8 in
2 in x 4 in NAILER
CURB FOR PIPE
CHASE
Note 1
B
LEFT HAND
PIPE CHASE
A
C
B
A
2 in
Note 1
D
CURB SUPPORTS
AS REQUIRED
RIGHT HAND
PIPE CHASE
A
1-1/2 in
1-7/8 in
Screw flange of pipe chase curb to
unit roof curb 2 in x 4 in nailer
Screw flange of pipe chase
curb to unit roof curb
DETAIL B
PIPE CHASE CURB CONNECTION
TO UNIT CURB
CURB CALCULATION FOR OUTSIDE DIMENSIONS
A = Total unit length from YORKworks minus 0.875 in.
B = Pipe chase location distance from unit discharge
end. Pipe chase Mtg. holes will not be included on
pipe chase curb. Mtg. will be field located.
C = Pipe chase length muinus 0.875 in.
D = Total unit width from YORKworks minus 0.875 in.
WALL PANEL
STANDARD
RACEWAY
CURB GASKET
CURB REST
2 in X 4 in NAILER
NOMINAL
ROOF CURB
Note 1
TYPICAL CURB SECTION FOR
UNITS WITHOUT BASE RAIL
DIMENSIONS
TYPICAL CURB SECTION FOR
UNITS WITH BASE RAIL
1.25 in
3.5 in
1.50 in
0.438 in
TYP.
2.00 in
TYP.
1.875 in
TYP.
WALL PANEL
STANDARD
RACEWAY
STANDARD
BASE RAIL
Note 1
Note 2
CURB GASKET
CURB REST
2 in X 4 in NAILER
NOMINAL
ROOF CURB
NOTES:
1. Curbs available in 14, 18, 22, 26, 30 or 34 inches.
2. Outdoor base rails are available in six, eight or 10 inches. Contractor is responsible for providing ductwork to include the height of the base rail.
3. Curb material is glavanized steel, unpainted, and may vary in gauge, and is based on the unit load and the quantity of cross bracing provided.
4. If curb space used as plenum, seal all joints and seams with suitable sealer, such as urethane caulk (P/N 013-02966-011).
LD09616G
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