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Clearances, Roof curb post-installation checks, Roof top duct connections – Goodman Mfg IO-367B User Manual

Page 6: Caution

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6

A

LL

CURBS

LOOK

SIMILAR

. T

O

AVOID

INCORRECT

CURB

POSITIONING

,

CHECK

JOB

PLANS

CAREFULLY

AND

VERIFY

MARKINGS

ON

CURB

ASSEMBLY

. I

NSTRUCTIONS

MAY

VARY

IN

CURB

STYLES

AND

SUPERSEDES

INFORMATION

SHOWN

.

CAUTION

See the manual shipped with the roof curb for assembly and
installation instructions.

CLEARANCES

36”; minimum
roof overhang

UNIT CLEARANCES

Adequate clearance around the unit should be kept for safety,
service, maintenance, and proper unit operation. A total clear-
ance of 75” on the main control panel side of the unit is rec-
ommended to facilitate possible fan shaft, coil, electric heat
and gas furnace removal. A clearance of 48” is recommended
on all other sides of the unit to facilitate possible compressor
removal, to allow service access and to insure proper venti-
lation and condenser airflow. The unit must not be installed
beneath any obstruction. The unit should be installed re-
mote from all building exhausts to inhibit ingestion of exhaust
air into the unit fresh air intake.

Insulated
Panels

Roof Curb Installation

ROOF CURB POST-INSTALLATION

CHECKS

After installation, check the top of the curb, duct connection
frame and duct flanges to make sure gasket has been ap-
plied properly. Gasket should be firmly applied to the top of
the curb perimeter, duct flanges and any exposed duct con-
nection frame. If gasket is loose, re-apply using strong
weather resistant adhesive.

P

ROTRUSION

Inspect curb to ensure that none of the utility services (elec-
tric) routed through the curb protrude above the curb.

I

F

PROTRUSIONS

EXIST

,

DO

NO

ATTEMPT

TO

SET

UNIT

ON

CURB

.

CAUTION

ROOF TOP DUCT CONNECTIONS

Install all duct connections on the unit before placing the unit
on rooftop.