Daikin DBG Series Service Instructions Manual page 6

PRODUCT DESIGN
Roof Curb Installations Only:
Curb installations must comply with local codes and should
be done in accordance with the established guidelines of the
National Roofing Contractors Association.
Proper unit installation requires that the roof curb be firmly
and permanently attached to the roof structure. Check for
adequate fastening method prior to setting the unit on the curb.
Full perimeter roof curbs are available from the factory and
are shipped unassembled. Field assembly, squaring, leveling
and mounting on the roof structure are the responsibility of
the installing contractor.
for the assembly of the sheet metal curb is included in the
curb accessory.
T
O PREVENT POSSIBLE EQUIPMENT DAMAGE
,
PERSONAL INJURY OR DEATH
OBSERVED WHEN INSTALLING THE UNIT
•
Sufficient structural support must be determined prior to
locating and mounting the curb and package unit.
•
Ductwork must be constructed using industry guidelines.
The duct work must be placed into the roof curb before
mounting the package unit. Our full perimeter curbs in-
clude duct connection frames to be assembled with the
curb. Cantilevered type curbs are not available from the
factory.
•
Curb insulation, cant strips, flashing and general roofing
material are furnished by the contractor.
The curbs must be supported on parallel sides by roof members.
The roof members must not penetrate supply and return duct
opening areas as damage to the unit might occur.
NOTE: The unit and curb accessories are designed to
allow vertical duct installation before unit placement. Duct
installation after unit placement is not recommended.
A . T
LL CURBS LOOK SIMILAR O AVOID INCORRECT CURB POSITIONING
CHECK JOB PLANS CAREFULLY AND VERIFY MARKINGS ON CURB
. I
ASSEMBLY NSTRUCTIONS MAY VARY IN CURB STYLES AND SUPERCEDE
.
INFORMATION SHOWN
See the manual shipped with the roof curb for assembly and
installation instructions.
6
All required hardware necessary
WARNING
,
PROPERTY DAMAGE
THE FOLLOWING BULLET POINTS MUST BE
.
CAUTION
75"
*In situations that have multiple units, a 48" minimum
,
clearance is required between the condenser coils.
Adequate clearance around the unit should be kept for safety,
service, maintenance, and proper unit operation. A 75" clear-
ance on the non-service side of the unit is required to facilitate
possible blower assembly, shaft, wheel replacement and coil
removal. *DBG ONLY- A 75" Clearance on the service is re-
quired for removal of the gas heat exchanger. This unit must
not be installed beneath any obstruction. This unit should be
installed remote from all building exhausts to inhibit ingestion
of exhaust air into the unit's fresh air intake.
Protrusion
Inspect curb to ensure that none of the utility services (electric)
routed through the curb protrude above the curb.
I
F PROTRUSIONS EXIST
I
NFORMATION SHOWN
,
ELECTRICAL WIRING
HIGH VOLTAGE !
D
ISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT
. F
BE PRESENT AILURE TO DO SO MAY CAUSE PROPERTY
,
DAMAGE PERSONAL INJURY OR DEATH
CLEARANCES
*75" for DBG models
6"
48"
UNIT CLEARANCES
CAUTION
,
DO NOT ATTEMPT TO SET UNIT ON CURB
.
WARNING
. M
ULTIPLE POWER SOURCES MAY
.
48"
36" MINIMUM
ROOF OVERHANG
.