ACCESSORIES
Discharge Duct Adapter, DDA
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 grill 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 pro-
vide 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
Adapter
Model
Round
Duct Size
OWC12
OWC18
OWC24
OWC36
OWC60
DDA-6
6-inch
ü
DDA-10
10-inch
ü
ü
DDA-16
16-inch
ü
Maximum Approx
Equivalent Feet
25
50
50
50
100
Maximum
E.S.P
.15
.25
.25
.25
.50
2DDA-16
16-inch
ü
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