Before installing the unit, carry out the following checks:
• Make sure that the fan impeller rotates freely.
• Make sure there is no condensate on the motor.
• Check the electrical resistance of insulation between the motor windings and between each winding and the motor casing.
The fan can be mounted in any position – vertically, horizontally or tilted at any angle.
FAN INSTALLATION RECOMMENDATIONS
Fan mounting in the ductworks
To ensure smooth airflow at the fan inlet it is recommended to install
a straight air duct segment with a cross section equal to the fan cross
section. The air duct segment must be 3 ÷ 4 D (D is the inner fan diameter).
The length of the straight duct section downstream of the fan must be
1.5 ÷ 2 D. Installation of shorter air ducts may result in insufficient air
pressure and air flow. The flexible joints EVAF-AF are recommended for
vibration damping and noise attenuation.
4D
2D
D
Changing diameter installation
When changing from a smaller diameter to a larger one use a connector
diffuser with the maximum opening angle of 12°.
max 12°
MOUNTING AND SET-UP
WHILE INSTALLING THE UNIT ENSURE CONVENIENT ACCESS FOR SUBSEQUENT
MAINTENANCE AND REPAIR.
ALL OPERATIONS DESCRIBED IN THIS USER’S MANUAL MUST BE PERFORMED BY
QUALIFIED PERSONNEL ONLY, PROPERLY TRAINED AND QUALIFIED TO INSTALL AND
MAINTAIN VENTILATION EQUIPMENT.
DO NOT ATTEMPT TO INSTALL THE PRODUCT YOURSELF.
IT IS UNSAFE AND IMPOSSIBLE WITHOUT SPECIAL KNOWLEDGE.
www.blaubergventilatoren.de
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