ALNOR
®
ventilation systems
is a legally protected trademark and technical patent. All rights reserved.
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User Manual
HRU-WALL-WI
• If any abnormalities in operation are detected, disconnect the device from the mains supply and contact a
qualified technician immediately. Use original spare parts only for repairs.
• The electrical system to which the device is connected must comply with regulations.
• Before connecting the product to the power supply or the power outlet, ensure that: the data plate (voltage
and frequency) correspond to those of the electrical mains and the electrical power supply/socket is adequate
for maximum device power. If not, contact a qualified technician.
• The device should not be used as an activator for water heaters, stoves, etc., nor should it discharge into hot
air/fume vent ducts deriving from any type of combustion unit. It must expel air outside via its own special
duct.
• Operating temperature: -20°C up to +50°C.
• The device is designed to extract clean air only, i.e. without grease, soot, chemical or corrosive agents, or
flammable or explosive mixtures.
• Do not leave the device exposed to atmospheric agents (rain, sun, snow, etc.).
• Do not immerse the device or its parts in water or other liquids.
• Turn off the main switch whenever a malfunction is detected or when cleaning.
• For installation an omnipolar switch should be incorporated in the fixed wiring, in accordance with the
wiring regulations, to provide a full disconnection under overvoltage category III conditions (contact opening
distance equal to or greater than 3mm).
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
• Do not obstruct the fan or exhaust grille to ensure optimum air passage.
• Ensure adequate air return/discharge into/from the room in compliance with existing regulations in order to
ensure proper device operation.
• If the environment in which the product is installed also houses a fuel-operating device (water heater, methane
stove etc., that is not a “sealed chamber” type), it is essential to ensure adequate air intake, to ensure good
combustion and proper equipment operation.
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• 2014/35/EU Low Voltage Directive (LVD) and 2014/30/EU Electromagnetic Compatibility (EMC), in
conformity with the following standards:
• Electrical Safety: EN60335-1(2012)+A11+A13; EN 60335-2-80(2003) +A1+A2.
• Electromagnetic Compatibility: EN 55014-1(2017); EN 55014-2 (2015); EN 61000-3-2(2014); EN 61000-
3-3(2013).
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• Tube material: high quality, impact and UV-resistant ABS colour RAL 9010.
• Design front cover removable for cleaning without the use of tools.
• Easy maintenance installation plate, for easy access to the heat exchanger from inside the room.
• Anti-dust filter, easily removable for washing by the user without tools.
• Regenerative honeycombs ceramic heat exchanger.
• External grille in high quality, external hood in aluminium, painted in white RAL 9010, acoustically lined.
• High efficiency aerodynamic fan with “winglet” blades to optimise quietness and efficiency.
• Single phase EC reversible brushless motor with integral thermal protection.
• Motor mounted on high quality ball bearings.
• The unit is double insulated: no earth connection is required.
• Trickle speed selectable.
• Boost mode.
• Free-cooling (Bypass single direction) mode.
