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In this exchange, water is generated due to condensation forming as the warm outgoing air rapidly cools. It is essential
that this water is properly drained away from the unit via the supplied condensate drain pipe.
ORKA HR has a 100% bypass that allows fresh air from outside to be introduced directly, without receiving the heat
energy from the extraction air, generating free cooling. It is a manual activation.
2.2. DESCRIPTION
• HR and ST: Extraction: 4 spigots d.80 +spigot d.125.
• HR D150 and STD150: extraction: 1 spigot d.150 and 1 spigot d.125.
• The rest of connections: 3 x d.125 (adapter 125/150-160 supplied for each spigot).
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Fresh air
from outside
Discharge to
outside
Extraction of bathroom
and kitchen
Supply to living
room and
bedrooms
Covers to fi lters access
New fresh air inlet:
This spigot is to connect the supply duct of fresh air from outside.
Install the fresh air intake (wall or roof) a suffi cient distance from any area of high pollution (trees,
exhaust fumes, road, etc).
This duct must be sealed and insulated to prevent condensation on the outside
and inside.
Supply fresh air into the building:
Connected to the air intake duct in the property.
To avoid thermal losses, it is recommended to use insulated ducts for the warmed air.
Extract air from the building:
Connected to the extract duct from the property.
To avoid thermal losses and optimise the performance of the installation, it is recommended to use
insulated ducts for the warm air.
