Roof Curb Post-Installation Checks; Roof Top Duct Connections; Rigging Details - Daikin DCC Series Installation Instructions Manual

Light commercial packaged heating and cooling unit 7.5 to 12.5 ton
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Adequate clearance around the unit should be kept for safety, ser-
vice, maintenance, and proper unit operation. A total clearance of
75" on the main control panel side of the unit is recommended to
facilitate possible fan shaft, coil, electric heat and gas furnace re-
moval. 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 ventilation and condenser airflow. The
unit must not be installed beneath any obstruction. The unit should
be installed remote from all building exhausts to inhibit ingestion
of exhaust air into the unit fresh air intake.
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 applied properly.
Gasket should be firmly applied to the top of the curb perimeter,
duct flanges and any exposed duct connection frame. If gasket is
loose, re-apply using strong weather resistant adhesive.
P
ROTRUSION
Inspect curb to ensure that none of the utility services (electric)
routed through the curb protrude above the curb.
I
F PROTRUSIONS EXIST
Install all duct connections on the unit before placing the unit on
rooftop.
H
ORIZONTAL
Refer to IOD-7006 included in the literature pack for installing hori-
zontal duct covers.
Flexible duct connectors between the unit and ducts are recom-
mended. Insulate and weatherproof all external ductwork and
joints as required and in accordance with local codes.
INSULATED
PANELS
13 7/8"
T
O PREVENT PROPERTY DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHT
POSITION DURING ALL RIGGING AND MOVING OPERATIONS.
LIFTING AND MOVING WHEN A CRANE IS USED, PLACE THE UNIT IN AN
ADEQUATE CABLE SLING.
D
O NOT LIFT UNITS TWO AT A TIME
INCLUDED IN THE UNIT BASE FRAME
PREVENT DAMAGE TO THE UNIT
Provisions for forks have been included in the unit base frame. No
other fork locations are approved.
5
CAUTION
,
DO NO ATTEMPT TO SET UNIT ON CURB

ROOF TOP DUCT CONNECTIONS

D
ISCHARGE
REMOVE
COVERS
28 3/8"
7 3/8"
SUPPLY
6 1/4"
HORIZONTAL DISCHARGE DUCT CONNECTIONS

RIGGING DETAILS

WARNING
CAUTION
. P
ROVISIONS FOR FORKS HAVE BEEN
. M
INIMUM FORK LENGTH IS
.
.
12 5/8"
5 7/8"
RETURN
36 3/8"
T
O FACILITATE
48"
TO

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