Vaillant aroSTOR VWL B 270/5 Installations- Und Wartungsanleitung Seite 68

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This installation type is particularly suitable for small rooms
(supply or store room, etc.).
This configuration prevents a room from being cooled and
does not impair ventilation.
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In order to prevent leak air from being extracted by recir-
culation, maintain a clearance between the ends of the
air pipes.
– Clearance: ≥ 220 mm
5.1.3 Installing the partial pipe system
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3
1 External area
2 Internal area (heated or
not heated)
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2
4
3 Heat-insulated pipe
(diameter ≥ 160 mm)
4 Ventilation
The hot air is drawn into the room and the cold air is
released outside.
With this installation type, the room is used as an energy
collector. The room is cooled by outdoor air that flows in via
the ventilation openings.
– Room volume at installation site: ≥ 20 m³
Caution.
Risk of material damage due to condensa-
tion forming on the outside of the pipe.
The difference in temperature between the
air flowing through the pipe and the air in the
installation room can cause condensation to
form on the outside surface of the pipe.
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Use air pipes with suitable heat insulation.
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Avoid negative pressure in the installation room in or-
der to ensure that air is not extracted from surrounding
heated rooms.
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Check whether the existing ventilation can compensate
for the withdrawn air flow.
– Air flow: ≥ 400 m³/h
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Add the air flow that is required for normal ventilation of
the installation room to the withdrawn air.
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If required, adjust the ventilation.
5.1.4 Installing without a pipework system
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1 External area
2 Internal area (heated or
not heated)
The air is drawn into and conducted away from the same
room .
With this installation type, the room is used as an energy
collector. The room is cooled by the hot and cold air that the
product emits.
Installation and maintenance instructions 8000015884_00
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3
3 Ventilation