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VUT/VUE 250 VB(E) EC L/R
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RIGHT-HANDED AND LEFT-HANDED MODIFICATIONS
The figure below shows the arrangement of spigots for left- and right-handed modifications. Choosing the right arrangement can
improve the ease of installation, shorten the length of the ducts and reduce the number of air duct bends.
VUT/VUE 250 VB(E) EC L
VUT/VUE 250 VB(E) EC R
4
3
1
2
4
3
1
2
1 – extract air 2 – supply air 3 – exhaust air 4 – intake air
UNIT OPERATION LOGIC
Heat recovery
Air from the room flows into the unit, where it is filtered by the extract filter, then air flows through the heat exchanger and is exhausted
outside by the exhaust fan. Air from outside flows into the unit, where it is cleaned in the intake 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
The bypass damper is opened, the extract air that is removed from the premises bypasses the heat exchanger. The temperature of the air
is not changed after passing through the heat exchanger.
Freeze protection
The unit has automatic heat exchanger freeze protection modes depending on the unit model. A freezing danger appears, if the exhaust
air temperature downstream of the heat exchanger is below +5 °C and the intake air temperature upstream of the heat exchanger is
below -3 °C.
There are two modes for freeze protection: switching off the supply fan and heating the air (only for VUT/VUE 250 VBE EC L/R units). Mode
selection and settings are described in the control system user’s manual.
Summary of Contents for VUE 250 VB EC Series
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