Vents VCUN, User Manual

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TROUBLESHOOTING
Problem Possible reasons Troubleshooting
The fan does not start.
No power supply.
Make sure that the unit is properly
connected to the power mains and make
any corrections, if necessary.
Jammed motor.
Turn off the fan.
Troubleshoot the motor jamming.
Restart the fan.
Circuit breaker tripping
during the fan start. Excessive electric current consumption
caused by a short circuit. Turn off the fan.
Contact the Seller.
Noise, vibration.
The fan impeller is soiled. Clean the impellers.
The screw connection is loose.
Check the screw connection and tighten
the screws if needed.
Resonance with the mounting structure.
Use VVCr and VVCp vibration dampers
recommended for your fan model.
STORAGE AND TRANSPORTATION REGULATIONS
• Store the unit in the manufacturer’s original packaging box in a dry closed ventilated premise with temperature range
from +5 °C to + 40 °C and relative humidity up to 70 %.
• Storage environment must not contain aggressive vapors and chemical mixtures provoking corrosion, insulation, and sealing
deformation.
• Use suitable hoist machinery for handling and storage operations to prevent possible damage to the unit.
• Follow the handling requirements applicable for the particular type of cargo.
• The unit can be carried in the original packaging by any mode of transport provided proper protection against precipitation and
mechanical damage. The unit must be transported only in the working position.
• Avoid sharp blows, scratches, or rough handling during loading and unloading.
• Prior to the initial power-up after transportation at low temperatures, allow the unit to warm up at operating temperature for at least
3-4 hours.