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| Installation
7.2 Installation positions
AXC, AXR, AXS
♦ Consider below guideline for installation positions.
Note:
• Order process (Systemair configurator): If the type of installation is e.g. "SO" (vertical installation, >= IEC
160), a suitable motor is automatically used (in this case with different bearings).
• Please contact Systemair if a position marked with a “red-cross” is required for an existing fan.
Fans equipped with
• B3 <160 and B30 (Pad)
• B5 (AXC-H)
The installation is possible in any mounting position.
B3 >=160
AXCBF
Important
Overheating motor
♦ The motor opening must be faced upwards to avoid trapped heat.
7.2.1 Installation of the ventilation system
Preconditions
♦ The air flow of the fan must be able to open the air operated damper (LRK).
Installation duct
♦ Do not place a duct bend directly
before or after the fan!
• This can cause damage to the
bearings or other parts of the fan.
• The duty point may not be
reachable.
• The fan may make noise.
♦ Ensure a direct, smooth and
constant air flow to the device.
Ensure a free exhaust, see the
following pictures.
♦ Install an inlet cone or a channel
section with a length of at least 2.5
x D. It is not recommended to install
the protective guard directly in
front of the impeller (without inlet
cone), as additional noise and a
deterioration of the air
performance may result.
♦ To reduce transmission of vibration
to the duct system, we recommend
flexible connections from our
accessory range, see 5.2.4
Accessories, page 8.
D = nominal diameter
1
Inlet cone
2
Protective guard
3
Flexible connection
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