OCEANAIRE OWC Series Engineering, Installation And Service Manual page 12

ACCESSORIES
DISCHARGE 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 adapter is attached in the grille opening.
DDA-6
for OWC12, converts the evaporator discharge to a 6-inch diameter round duct.
2DDA-10
for OWC18 and OWC24, converts the evaporator discharge to a 10-inch
diameter round duct.
2DDA-16
for OWC36 and OWC60, converts the evaporator discharge to a 16-inch
round duct.
When used in conjunction with the evaporator return air plenum, the unit can provide
closed-loop cooling to and from a given space without the influence of any outside air.
NOTE—When a DDA/2-DDA is installed, it is recommended to set the evaporator blower
speed to high, to avoid evaporator coil freeze-up
Adapter Round
Model Duct Size
DDA-6
6-inch
2DDA-10
10-inch
2DDA-16
16-inch
Maximum
Approx.
Equivalent
Feet
Maximum
E.S.P
OWC12 OWC18 OWC24 OWC36 OWC60
✓
✓
25 50
.15 .25
10
.
✓
✓
60
.25 .25
✓
70 80
.50