Ocean Aire OWC1211, Engineering, Installation And Service Manual

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ACCESSORIES
DISHARGE DUCT ADAPTER
Discharge duct adapters are available for applications where ducted evaporator discharge is
required. The adapters can be easily installed on the unit without fasteners, and be installed
for either vertical or horizontal ducting. The standard discharge grille is removed and the DDA
is attached in the grille opening.
DDA-6
for OWC12 , converts the evaporator discharge to a 6-inch diameter round duct.
DDA-10
for OWC18 and OWC24 , converts the evaporator discharge to a 10-inch
diameter round duct.
2DDA-16
for OWC36, converts the evaporator discharge to a 16-inch round duct.
DDA-16
FOR OWC60, converts the evaporator discharge to a 16-inch round duct.
When used in conjunction with the evaporator return air plenum, DEP, the unit can provide
closed-loop cooling to and from a given space without the influence of any outside air.
NOTE—When a DDA is installed, it is recommended to set the evaporator blower speed
to high, to avoid evaporator coil freeze-up
.
Adapter
Model
Round
Duct Size
OWC12 OWC18 OWC24 OWC36 OWC60
DDA-6
6-inch

DDA-10
10-inch
 
2DDA-16
16-inch

DDA-16
16-inch

Maximum Approx.
Equivalent Feet
25 50 50 50 100
Maximum
E.S.P
.15 .25 .25 .25 .50
10