Instruction manual

3. Use a screwdriver and hammer to remove the panels in the
bottom of the base pan.
NOTE: These panels are held in place with tabs similar to an
electrical knockout.
4. Reinstall the horizontal duct covers (Fig. 11) to block off
the horizontal air openings.
NOTE: Avoid abrupt duct size increases and reductions. Abrupt
change in duct size adversely affects air performance.
VI. PROVIDE FOR CONDENSATE DISPOSAL
NOTE: Ensure that condensate-water disposal methods comply
with local codes, restrictions, and practices.
The 602B units dispose of condensate through a 3/4 in. NPT
female fitting that exits on the compressor end of the unit.
Condensate water can be drained directly onto the roof in rooftop
installations (where permitted) or onto a gravel apron in ground
level installations. Install a field-supplied condensate trap at end of
Fig. 5—Roof Curb Dimensions
UNIT SIZE ODS CATALOG NUMBER
A
IN. (MM)
B
IN. (MM)
C
IN. (MM)
D
IN. (MM)
602B024-036
CPRFCURB006A00 8 (203) 11(279) 161/2 (419) 28-3/4 (730)
CPRFCURB007A00 14 (356) 11(279) 161/2 (419) 28-3/4 (730)
602B042-060
CPRFCURB008A00 8 (203) 16 3/16 (411) 17 3/8 (441) 40-1/4 (1022)
CPRFCURB009A00 14 (356) 16 3/16 (411) 17 3/8 (441) 40-1/4 (1022)
NOTES:
1. Roof curb must be set up for unit being installed.
2. Seal strip must be applied, as required, to unit being installed.
3. Dimensions in ( ) are in millimeters.
4. Roof curb is made of 16-gage steel.
5. Table lists only the dimensions, per part number, that have changed.
6. Attach ductwork to curb (flanges of duct rest on curb).
7. Insulated panels: 1-in. thick fiberglass 1 lb. density.
8. Dimensions are in inches.
9. When unit mounting screw is used (see Note A), a retainer bracket must be used as well. This bracket must also be used when required by code for hurricane or seismic
conditions. This bracket is available through Micrometl.
C00076
Gasket around
outer edge
Insulated
deck pan
Gasket around
duct
S/A
R/A
HVAC unit
base
*Gasketing
outer flange
Flashing field
supplied
Roofing material
field supplied
Cant strip
field supplied
*Provided with roofcurb
Roof
Duct work
field supplied
Insulation (field
supplied)
Roofcurb*
Wood nailer*
Gasketing
inner flange*
Screw
(NOTE A)
Roof Curb for Small Cabinet
Note A: When unit mounting screw is used,
retainer bracket must also be used.
HVAC unit
base
*Gasketing
outer flange
Flashing field
supplied
Roofing material
field supplied
Cant strip
field supplied
*Provided with roofcurb
Roof
Duct work
field supplied
Insulation (field
supplied)
Roofcurb*
Wood nailer*
Gasketing
inner flange*
Screw
(NOTE A)
Roof Curb for Large Cabinet
Note A: When unit mounting screw is used,
retainer bracket must also be used.
A
B Typ.
Supply opening
(B x C)
Long
Support
D
44
5
/16"
Return opening
(B X C)
Insulated
deck pan
Short
Support
C Typ.
—6—
→