Table of Contents
Roof Curb
Used With
| Model Number: | Used With: |
| FIACURB404* | Precedent D Cabinet (Digit 39 = D) |
| FIACURB804* | Precedent D Cabinet (Digit 39 = D) |
Installation Instructions
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Clearances
For detailed instructions, please reference the installation manual.
Dimensional data (inches)
For detailed instructions, please reference the installation manual.
(a) FIACURB404* dimension (L) 14 1/16
(b) FIACURB804* dimension (L) 18 1/16
Curbs' weight (net lbs.)
For detailed instructions, please reference the installation manual.
| Curb | Weight |
|---|---|
FIACURB404* |
235 |
FIACURB804* |
265 |
Typical installation on new construction
For detailed instructions, please reference the installation manual.
Typical installation on existing construction
For detailed instructions, please reference the installation manual.
Curb rail assembly A
For detailed instructions, please reference the installation manual.
Curb rail assembly B
For detailed instructions, please reference the installation manual.
Installing gasket material
For detailed instructions, please reference the installation manual.
Supply and Return Air Ductwork
- When flexible duct is not desired, metal or fiberboard duct may be installed.
- The metal of fiberboard duct must conform to all local building codes.
- The duct must be hung from the curb flanges inside the curb walls.
Important:
Ductwork must be hung from the curb flanges. It must not be installed over the top edges of the curb.
- When the duct is fabricated, it should be large enough to cover the openings for the return and supply sides of the unit, but the flanges must be narrow enough to slide down inside the curb.
Important:
All ductwork attached to the curb, must be in place and secured before the unit is set.
- To ensure proper duct construction and installation, SMACNA recommendations should be closely followed.
Notes:
- All field fabricated panels used must be insulated.
- Fabricated duct flange must rest on inside of curb on flange, as shown, after installation.
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.