Samsung OM46N Installation Manual page 19

Single enclosure unit
When using with the enclosure unit, design the semi-outdoor unit according to the following specifications to prevent
discharged hot air from flowing back into the inlet.
• Air inlet( )
Total open area of the ventilation holes: 67,000 mm⁲ or more
Minimum ventilation opening ratio (%): 50 % or more
• Air outlet( )
Total open area of the ventilation holes: 67,000 mm⁲ or more
Minimum ventilation opening ratio (%): 50 % or more
– Design the locations of the enclosure unit inlet and outlet to match the locations of the semi-outdoor unit inlet and
outlet.
• The front and back sides of the enclosure unit must be open without glass.
• Keep clear around the product and the openings on the top and bottom to ensure good air flow.
Air outlet
Air inlet
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OM46N-D / OM55N-D
Side view