Vents VUT 180 P5 User Manual page 7

UNIT OPERATION MODES
Heat recovery
Warm extract air from the room flows into the unit and is cleaned in the extract filter. Then the air is moved through the heat exchanger
and is exhausted outside with the extract fan. Cold fresh air from outside flows into the unit, where it is cleaned in the supply filter.
Then the air flows through the heat exchanger and is directed to the room with the supply fan. Supply air is heated in the heat exchanger
by transferring the heat energy of warm and humid extract air to the cold fresh air. The air flows are fully separated while flowing through
the heat exchanger. Heat recovery minimizes heat losses, which reduces the cost of space heating in the cold season.
Summer Cooling mode (for the units with bypass only)
The bypass damper is opened, the extract air that is removed from the premises is routed along the bypass duct and does not come in
contact with the heat exchanger. The temperature of the air is not changed after passing through the heat exchanger.
CAUTION! THE FANS START RUNNING 2 MINUTES AFTER THE UNIT IS SWITCHED ON.
WHEN THE BYPASS DAMPER IS OPENED (CLOSED), THE UNIT FANS ARE TURNED OFF FOR 2 MINUTES.
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SUPPLY AIR
EXTRACT AIR
SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
INTAKE AIR
EXHAUST AIR
INTAKE AIR
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