17
TECHNICAL MAINTENANCE
Make sure to schedule a periodic inspection of the external electrical leads connection to
the bolt-down terminals of the unit.
Possible malfunctions and their elimination
Problem
Possible reasons
Troubleshooting
Controller will
not switch on
The unit is not connected to the
power mains.
Make sure that the unit is properly
connected to the power mains and
make any corrections, if necessary.
Faulty fuse.
Replace the fuse.
Heating element
overheating
The heater power output does
not match the power output
controller parameters.
Check the heater power output for
compliance with the RNS controller
specifications.
Install an appropriately rated heater.
Filter clogging.
Clean the filter.
Insufficient heating element air
cooling or no air cooling.
Eliminate the factors preventing
proper air cooling of the heating
element.
Controller
malfunction
Temperature sensor
malfunction.
Replace the temperature sensor.
Incorrect operating mode
selection.
Check the jumpers for correct
installation (see Page 10).
TRANSPORTATION AND STORAGE REGULATIONS
The unit must be stored in the original packing in a dry ventilated area at temperatures from
+5 °C to +40 °C.
The air in the storage space must not contain any vapours or admixtures which may lead to
corrosion or compromise the insulation and seals.
Use only suitable lifting equipment for handling operations to prevent damage to the unit.
Follow the applicable moving regulations specific to the particular cargo type while loading
and unloading.
The unit can be transported in the original packing by any mode of transport without
limitation provided proper protection against precipitation and mechanical damage.
Avoid sudden jolts and impacts while loading and unloading the unit.
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