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TF6751_D
Aereco S.A.
1.2.
General
The VBP+C4 is a very-low-pressure assistance fan delivering pressure compatible with the design of passive stack
ventilation. It is intended to improve and optimize the draught of passive stack ventilation ducts and belongs to the category
of hybrid ventilation systems.
The VBP+C4 is available in 2 pre-configured versions:
ST version:
Version pre-configured in ST mode, uncontrolled stand-alone, at constant speed adjustable on a built-in
potentiometer.
MS version:
Version pre-configured in MS mode, controlled by a management system:
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Management of the fans in groups (up to 5 groups of 5 VBP+),
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Individual setting/adjustment of the speed of each fan according to the site configuration (number of
storeys, ductwork...)
▪
Speed control of each fan according to the temperature, (item sold by Aereco), wind or by using a
clock (items not sold by Aereco)
▪
Indication of operation of the system and alarm reporting.
This version requires the use of two specific types of modules.
The versions (ST and MS) are the same product with different pre-configurations. It is therefore easy to change from
one version to the other.
1.3.
Main functions
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Hybrid operation: in passive stack or mechanical mode (low pressure losses when stopped)
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Compatibility with demand controlled ventilation
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Low power consumption
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Fire resistance: 400°C for 30 min (C4 classification in France)
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Fire resistance: 400°C for 120 min (F400)
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Direct power supply at 230 VAC, 50-60Hz
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Adjustment of the speed according to the temperature, wind or by using a clock ("MS" mode)
▪
R
eporting of information for alarm (“MS” mode)
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Possibility of grouping several ducts (aeraulic cross-section 984 cm²)
1.4.
Range of use
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Ventilation of residential buildings, offices, and other general-purpose premises
▪
Renovation or new construction
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Individual or collective ventilation ducts, which may be made of concrete or metal.
Remarks:
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Use of the fan on ducts serving connected gas-fired appliances is subject to specific approval by the
competent authorities.
▪
The height of the buildings equipped varies according to the regulation flow rate requirements, which
are specific to each country.
▪
In France, this fan is marketed under a CSTB technical approval specifying its dimensioning and
installation conditions. The product is sold there under the HELYS H800 C4 name by the Acthys company
and is pre-configured in MS mode.
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In some countries, a specific permit may be required for use in new buildings
