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Fresh Air Boxes
Installation and Operating Instructions
• Do not open unit cover when the unit is in operation!
• Transport fan in packaging until installation!
• Only transport fans using means of transport that are appropriate for the
weight, wear protective gloves during transport!
• Wear protective gloves/footwear when unpacking the unit.
• Ensure the suitable load capacity and properties of the mounting surface and
use suitable mounting material.
• The operator is responsible for observing all plant-related safety regulations!
• Abnormally frequent activation/deactivation is not permissible.
• Protection against contact for the impeller must be ensured pursuant to DIN
EN 13857.
• The planner and operator must ensure easy access for inspection and clea-
ning work!
• A uniform inflow and free outlet must be ensured.
• When using a vented fire place (chimney) in a ventilated room, there must be
sufficient supply air for all operating conditions (consult chimney sweep).
Frost protection information
The fresh air boxes ALB type ..WW have a built-in warm water heater battery.
In order to avoid frost damage, heating water must always be available. The
heating system must be always in operation even if the ventilation system is
turned off. In order to guarantee that no cold outside air below +5 °C arrives
at the heat exchanger, an external damper must always be integrated in the
ventilation system.
1.3 Application
– Normal use:
Especially for in-line installation in circular ducting designed and for versatile commercial applications. The units are sui-
table for the use in dry interior rooms at temperatures from +5 °C to +35 °C. They are suitable for moving clean air
without dust, grease, chemical evaporation and other pollution.
- Max. relative humidity: 80%
- Electrical protection class: IP 20
The units are designed only for installation in frost-protected rooms. Frost and water damages may occur if installed
outdoors.
– Reasonably foreseeable misuse:
The fans are not suitable for operation under difficult conditions, such as high levels of humidity, aggressive media,
long standstill periods, heavy contamination, excessive loads due to climatic, technical or electronic influences. The
same applies for the mobile use of fans (vehicles, aircraft, ships, etc.).
– Improper, prohibited use:
Outdoor installation without effective weather protection or in direct contact with water. Conveyance of explosive gas
mixtures/media. Installation in an explosive area/atmosphere. Operation without standardised safety devices (e.g. pro-
tective grille). Conveyance of solids or solid content > 10 µm in the conveyed medium and liquids. Conveyance of ab-
rasive and/or fan material-corrosive media. Conveyance of conveyed medium containing fat.
1.4 Boundaries
Spatial boundaries:
A straight, flat pipe section of 500 mm must be ensured before and after the ALB. When using a pipeline at the start,
the air inlets with a damper (VK, WSG accessories) must be used. When using a pipeline at the end, a protection grill-
e must be used on the outlet side.
The outlet-side environment must not be accessible to unauthorised persons and obstructed.
The fan must be easily accessible for cleaning and maintenance purposes, particularly the terminal box.
Power supply interface:
- Connection only with permanently installed lines according to wiring diagram
UK
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