14
VUT/VUE 550/900 PBW EC
www.ventilation-system.com
STORAGE AND TRANSPORTATION REGULATIONS
• Store the unit in the manufacturer’s original packaging box in a dry closed ventilated premise with temperature range
+5 ˚C...+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.
TROUBLESHOOTING
IF UNIDENTIFIED NOISES OR ODOURS SHOULD ARISE AND IN CASE OF DEFORMATION
OF ELEMENTS, VIBRATION, TERMINATION OF AIR SUPPLY/EXTRACTION OR REDUCED
SYSTEM PERFORMANCE, IMMEDIATELY DISCONNECT THE UNIT FROM POWER SUPPLY
AND CONTACT THE SELLER FOR THE VENTILATION SYSTEM DIAGNOSTICS.
DIAGNOSTICS MUST BE CARRIED OUT BY QUALIFIED SPECIALISTS
POSSIBLE REASONS AND TROUBLESHOOTING
Problem
Possible reasons
Troubleshooting
The fan(s) does (do) not
start when the unit is on.
No power supply.
Make sure the power supply line is connected correctly,
otherwise troubleshoot the connection error.
The mode in which the fans are turned off is set.
Change the mode with the help of the control panel.
Low air flow.
Low set fan speed.
Set higher speed.
The filters and the fans are clogged, the heat exchanger
is clogged.
Clean or replace the filters, clean the fans and the heat
exchanger.
The ventilation system elements (air ducts, diffusers,
louver shutters, grilles) are clogged, damaged or closed.
Clean or replace the ventilation system elements, such as air
ducts, diffusers, louvre shutters, grilles.
Cold supply air.
The extract filter is soiled.
Clean or replace the extract filter.
High noise, vibration.
The fan or casing screw connection is loose.
Tighten the screw connection of the fans or the casing.
No anti-vibration connectors on air duct pipe flanges.
Install anti-vibration connectors.
Water leakage (only for
the VUT units).
The drainage system is soiled, damaged, or installed
incorrectly.
Clean the drain line.
Check the drain line slope angle. Make sure that the U-trap is
filled with water and the drain pipes are frost protected.
If troubleshooting steps have failed,
contact the Seller of the product.
In case of faults not described in the table,
contact the Seller for further information.
