Translation from the original operating instruction
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AL-KO AIR HEATER / AIR COOLER INDUSTRY
8.4.1 Checking the heat exchanger
Check the heat exchanger form pollution at the air side, damage and corrosion.
Check connectors and screw connections.
Check the bleeding valve and the filling of the heat exchangers.
Check the anti-freeze concentration.
Check the syphon and top it up as required.
Check the function of the water drains.
8.4.2 Checking the condensate pump
Check the condensate pump for dirt, damage and appropriate function.
Check the condensate hose for dirt and damage.
Check the filling level sensor (DrainStick) for dirt, damage and appropriate function.
Check the condensate tray for dirt and damage.
8.4.3 Check the louvre slats
Check the louvre slats for dirt, damage and corrosion.
Check the mechanical function of the louvre slats.
Check the end position of the flap actuators and adjust as required.
8.4.4 Checking the fans
The fan is maintenance free, due to its ballpoint bearing with life-long lubrication. An exchange of the bearings is
required at the end of the fat lifespan (for standard applications approx. 30 – 40.000 h).
Check the fans for dirt, damage and corrosion.
Check the fan attachment and fasten all attachment screws.
Check the function of the protective devices.
Take note of atypical bearing noises and vibration-free running.
Caution!
Humid atmosphere:
It is recommended to run the fans at least for two hours per month during prolonged standstill periods to ensure
that accumulated humidity is evaporated.
8.4.5 Check the filters
The filters must regularly be checked for dirt and damage!
8.5
Cleaning the components
Components identified as dirty during the inspection must immediately be cleaned. No aggressive, paint-dissolving
cleaning agents may be used for cleaning.
