4
3. Connecting air ducts
When connecting the ductwork, it must be taken into account whether it is a left-hand or right-hand
configuration. Air duct connections are also indicated on the DucoBox Energy Premium by means of
stickers.
Fresh
air
Stale air
RIGHT-HAND configuration
EHA
SUP1
SUP2
ETA
ODA
OUTDOORS
HOUSE
LEFT-HAND configuration
EHA
SUP1 SUP2
ETA
ODA
OUTDOORS
HOUSE
Air ducts to HOUSE
Air ducts to OUTDOORS
SUP
Supply
Supply air from unit to house
ODA
Outdoor Air
Supply air from outdoors to the unit
ETA
Extract Air
Supply air from the house to the unit
EHA
Exhaust Air
Exhaust air from the unit to outdoors
