Reznor ADFH Option - Installation - Roof Curbs Assembly - Manual (Page 19)

Form I-OPT-C, P/N 132900 R17, Page 19
44-1/8”
(1121mm)
- inside
of curb
47-7/16”
(1205mm)
- outside
of rails
Rail Width
1-21/32”
(42mm)
Rail Width
1-21/32”
(42mm)
Outside Air Inlet Location
(on side of unit)
TOP VIEW of Assembled
ROOF CURB
Exhaust Air
Outlet Location
(on side of unit)
Supply Air
Opening
18-7/32” x 8-1
1/64”
(463mm x 2
08mm)
64-5/32” (1629mm) - inside of curb
67-15/32” (1713mm) - outside of rails
21-1/2”
(546mm)
Return Air Opening
19-51/64” x 8-11/64”
(503mm x 208mm)
22-1/4” (565mm)
Horizontal Return
Air Opening
Location on
Side of Unit
Supply
Air Opening
Location on
Side of Unit
FIGURE 6D - Dimensions - Option CJ3C Roof Curb and Duct Opening Dimensions, Z Series
Slide return
air and
supply
ductwork
down from
the top
and attach
to duct
flanges.
Approximate
weight of
roof curb is
196 lbs
(89 kg).
Inlet
Air
Drain
Electrical
Entrance
Installed Option CJ3 Curb
Model ZQYRA
FIGURE 6C - Correct
Orientation of
Ventilation Unit to
Roof Curb when using
Vertical Ductwork
IMPORTANT: Verify that the unit
is being placed on the curb in
the correct airflow orientation.
Reminder NOTES:
Curb is designed for ductwork to
be installed from the top prior to
setting unit on the curb.
Always apply sealant tape to top of
curb rails before placing unit.
4.0 Roof Curbs for
PreevA ® Models
RDH, REH, RHH,
and RXH
Roof Curb Option Packages for Models RDH, REH, RHH, and RXH include corner
assembly hardware and factory-assembled curb pieces. All other installation compo-
nents are field supplied
COMPONENTS of Roof Curb Packages for PreevA ® Models
NOTE: If a Model RDH or REH replaces a Reznor ® Model Series RGB or RPB unit,
curb adapters are available; contact your distributor for information.
CAUTION: Before installation, recheck to be sure that the correct curb
has been ordered. Be sure that the curb selected matches the unit
ordered. Verify the dimensions of the curb received with the appropriate
dimension table (pages 22-24).