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15
TROUBLESHOOTING
Problem
Possible reasons
Troubleshooting
The fan(s) do(es) not get started.
The unit is disconnected from network.
Make sure the power supply line is connected correctly,
otherwise troubleshoot a connection error.
Low air flow.
Filters, fans or the heat exchanger are
soiled.
Clean or replace the filters, clean the fans and the heat
exchanger.
The ventilation system is clogged or
damaged.
Clean the ventilation system components.
Replace the damaged components.
Noise, vibration.
The fan impeller is soiled.
Clean the impellers.
The fan or casing screw connection is
loose.
Tighten the screw connection of the fans or the casing
against stop.
The control panel displays an
alarm indicator —
.
Communication loss in connecting cable
or wires between the control panel and
the unit.
Make sure the connection cable and wires connecting the
control panel with the air handling unit are intact using a
multimeter instrument.
If you cannot troubleshoot a problem on your own please
contact the Seller.
Wrong cable installing.
Make sure the cable installation is completed according to
the requirements stated on page 13.
Otherwise install the cable as required.
STORAGE AND TRANSPORTATION REGULATIONS
Store the unit in the manufacturer’s original packing box in a dry closed ventilated premise with temperature range from +5 °C to + 40 °C. Storage
environment must not contain aggressive vapours and chemical mixtures provoking corrosion, insulation and sealing deformation.
The unit can be carried in the original packing by any mode of transport provided proper protection against precipitation and mechanical damage.
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.
Avoid sharp blows, scratches or rough handling during loading and unloading.
Do not expose the unit to sudden changes in temperature. Such changes can lead to condensation of moisture inside the unit and performance
disturbance when the unit is switched on.
Prior to the initial power-up after transportation at subzero temperatures allow the unit to warm up at room temperature for at least 2 hours.
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