Clearances; Roof Curb Post-Installation Checks; Roof Top Duct Connections - Daikin DSG Series Installation Instructions Manual

Light commercial packaged gas unit
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A
. T
LL CURBS LOOK SIMILAR
,
POSITIONING
CHECK JOB PLANS CAREFULLY AND VERIFY MARKINGS
. I
ON CURB ASSEMBLY
NSTRUCTIONS MAY VARY IN CURB STYLES AND
SUPERSEDES INFORMATION SHOWN
See the manual shipped with the roof curb for assembly and
installation instructions.

CLEARANCES

24"
Min.*
Unit Clearances
*In situations that have multiple units, a 48" minimum clear-
ance is required between the condenser coils.
Clearance in accordance with local installation codes, the
requirements of the gas supplier and the manufacturer's in-
stallation instructions.
Dégaugement conforme aux codes d'installation locaux,
aux exigences du fournisseur de gaz et aux instructions d'in-
stallation du fabricant.
Adequate clearance around the unit should be kept for safe-
ty, service, 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 removal. A clearance of 48" is recom-
mended 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 in-
stalled remote from all building exhausts to inhibit ingestion
of exhaust air into the unit fresh air intake.
NOTE: If the 48" minimum is used on the control panel side
of the unit, a flue extension (MF# 220-GX-01) needs be to
installed to prevent flue gas recirculation.
CAUTION
O AVOID INCORRECT CURB
.
*
36" Min.
24"
Min.*

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
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 (elec-
tric) routed through the curb protrude above the curb.
I
F PROTRUSIONS EXIST

ROOF TOP DUCT CONNECTIONS

Install all duct connections on the unit before placing the unit
on rooftop.
h
OrizOntal
To convert to horizontal discharge, remove the covers over
the horizontal duct connections (save washered screws).
Refer to IOD-7006 included in the literature pack for install-
ing horizontal duct covers to the downflow duct connections.
Flexible duct connectors between the unit and ducts are rec-
ommended. Insulate and weatherproof all external ductwork
and joints as required and in accordance with local codes.
7
Roof Curb Installation
CAUTION
,
DO NO ATTEMPT TO SET UNIT ON CURB
d
ischarge
INSULATED
PANELS
.

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