Installation Instructions

ManualsBrandsMcDaniel Metals ManualsAccessoriesRoof Curb for All Goodman GPG Chassis

281-987-8400 • 281-987-9494 (fax)

1318 Buschong, Houston, TX 77039

www.mcdanielmetals.com

D14CRBPGCHMA

14” KNOCKED DOWN ROOF CURB FITS

DAIKIN DP**G/DM**, DP**C/H**M, AND

GOODMAN GPG-APG****M, GPC/H-APC/

H****M.

section

page

M C DANIEL METALS

281.987.8400

2 1

ROOF CURBS FOR GOODMAN / AMANA

GPG/APG024-060 PACKAGE UNITS

ROOF CURB

Constructed of minimum, 18 gauge galvanized steel

Features a 1" x 4" wood runner permanently attached to the top of the curb.

Shipped unassembled with all hardware and instructions necessary for

installation.

NOTE: DUCT SIZE SHOULD BE 3/8" LESS THAN O.D. OF DUCT OPENING.

REV. C 2/13/2017

GENERAL

Roof curbs are shipped unassembled. Field assembly, squar-

ing, leveling and mounng on the roof structure are the

responsibility of the installing contractor. All curb installaons

must comply with local codes and should be done in accor-

dance with the established guidelines of the Naonal Roong

Contractors Associaon.

1. All required hardware necessary for the assembly of the

sheet metal curb is included with the curb accessory.

2. Full perimeter type curb accessories are available. Full

perimeter curbs include duct connecon frames to be at-

tached to the curb. Canlever type curbs are not available

from the factory.

3. Curbs must be supported on at least two parallel sides by

roof members. Ensure that roof members do not pen-

etrate supply and return duct opening areas.

4. Curb insulaon, cant strip, ashings and general roong

material are to be furnished by the roong contractor.

Wood nailer strip and curb gasket is to be furnished with

the curb accessory.

5. The unit and curb accessories are designed to allow ver-

cal duct installaon before unit placement. Duct installa-

on aer unit placement is not recommended

!CAUTION!

ALL CURBS LOOK SIMILAR. TO AVOID INCORRECT CURB

POSITIONING, CHECK JOB PLANS CAREFULLY AND VERIFY

MARKINGS ON CURB ASSEMBLY.

TABLE 1 A B C

Full Perimeter Curb 49 1/2

42 5/8 68

1. Check package contents to ensure all the pieces are pres-

ent.

2. Position perimeter pieces as depicted in drawing

with wood nailer to the outside.

3. Insert hooked tabs into slots and press down rmly.

4. Install duct support pieces as shown.

5. Level and square the curb. Both diagonal measurements

should be equal within a tolerance of 1/8” of C on Table

1. To level the curb, stretch two diagonal lines equipped

with line levels. There must not be more than 1/8” spac-

ing between the two lines at the point of intersecon.

Shim the curb unit it is level. When the lines touch at

the intersecon, move the boom line to the top and

recheck.

Summary of content (3 pages)

PAGE 1
D14CRBPGCHMA 281-987-8400 • 281-987-9494 (fax) 1318 Buschong, Houston, TX 77039 www.mcdanielmetals.com GENERAL 14” KNOCKED DOWN ROOF CURB FITS DAIKIN DP**G/DM**, DP**C/H**M, AND GOODMAN GPG-APG****M, GPC/H-APC/ H****M. TABLE 1 Full Perimeter Curb A B 49 1/2 42 5/8 C 68 Roof curbs are shipped unassembled. Field assembly, squar1. Check package contents to ensure all the pieces are presing, leveling and mounting on the roof structure are the ent. responsibility of the installing contractor.
PAGE 2
INSTALLATION 1. Place assembled curb in proper position over roof opening. Verify curb is square and level per instructions above. 2. Attach curb to roof surface following industry accepted practices. 3. Install insulation, cant strip, roofing materials, flashing and counterflashing in accordance with the established guidelines of the National Roofing Contractors Association. The finished roof, including counterflashing around the curb, must be installed prior to setting the unit on the curb.
PAGE 3
REV.