imo fans atex006

Description
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6 Description
6.1 Intended use
Indended use AW-EX, AXC-EX, AXCBF-EX, DV-EX, RVK-EX, MUB-EX
• The fans are intended for installation in ventilation systems.
• The fans are exclusively intended for conveying air in explosion-capable atmospheres according to the data on the
name plate and this manual.
• The temperature of the air transported through the fan must not exceed the temperature range stated on the name
plate.
• The temperature on the name plate (motor) must match the temperature class of the combustible gas which will
possibly occur.
Incorrect use
Incorrect use refers mainly to using the fan in another way to that described. The following examples are incorrect
and hazardous:
• Conveying of aggressive media
• The fan is not suitable for intake air with a dust
content so high that dust deposits on the impeller or
the fan housing.
• Operation of the fans with motors of „e“ ignition
protection class with frequency converter.
• Conveying of abrasive, combustible air or air with
solid particles.
• Operation without duct system or protection grille
• Operation with the air connections closed
6.2 Description AXC-EX, AXCBF-EX
Material of the housing:
Galvanized steel
Material of the impeller:
Aluminium die cast
Speed control: By frequency converter (See accessories in our online catalogue)
Motor protection:
By integrated PTC resistor (A motor protection device with EC test type certification has
to be used. See accessories in our online catalogue)
Temperature classes: T1, T2, T3, T4
Classification:
Zone 1, Zone 2
Category:
2G
Ignition protection class:
Ex d, Ex e, Ex h
Group:
IIA, IIB
Hydrogen (H2)
Others:
• AXCBF-EX: Motor outside the air flow.
• AXC-EX: Supplied with Ex e connection box on the outside of the housing.
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