MANUAL ROOF FANS008

Description
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Unpacking
When opening the transport packaging, there is a risk of damage from sharp edges, nails, staples, splinters etc.
Unpack the fan carefully.
Check the fan for obvious transport damage.
Only remove the packaging shortly before assembly.
Transport
Safety information
Warning: Electrical or mechanical hazards due to fire, moisture, short circuit or malfunction.
Never transport the fan by the connecting wire, terminal box, impeller, protection grille, inlet cone or silencer.
In open transport, please make sure that no water can penetrate into the motor or other sensitive parts.
We recommend transporting the fan to the installation site in the original packaging.
Caution: If transported without care during loading and unloading, the fan may be damaged.
Load and unload the fan carefully.
Use hoisting equipment that is suitable for the weight to be hoisted.
Observe the transportation arrows on the packaging.
Use the fan packaging exclusively as transport protection and not as a lifting aid.
Storage
Store the fan in the original packaging in a dry, dust-free location protected against weather.
Avoid the effects of extreme heat or cold.
Hazard due to loss of function of the motor bearing
Avoid storing for too long (recommendation: max. 1 year).
Check that the motor bearing functions properly before installation.
5 Description
5.1 Intended use
Roof fans DVN(I),DVS(I),DVC(I),DHS
The fans are intended for installation in ventilation systems. They can be installed both in duct systems and also
with free suction via an inlet cone and a suction-side contact protection grille. Systemair recommends a Back draft
damper (VKS) to avoid cold air intake at a standstill of the fan, see 7 Accessories, page 10.
The fans are exclusively intended for extract air applications.
Roof fans DHA
The fans are intended for installation in ventilation systems. They can be installed both in duct systems and also
with free outlet side via a protection grille.
The fans are exclusively intended for air supply applications.
DVN, DVNI
The fan is suitable for conveying contaminated air
(dust, kitchen exhaust).
The fan is applicable exhaust ventilation with a
maximum constant airflow temperature of 120 °C.
DVS, DVSI, DVC, DVCI, DHS, DHA
The fan is suitable for conveying clean air.
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