Coils; Fan Motor Assembly; Electrical Section; Water Pipes - SystemAir DUCTYS series Installations- Und Wartungshandbuch

13.5. COILS

Check that the fins are not clogged or damaged.
To avoid the coils becoming mouldy with an accumulation of tiny impurities, it is recommended that they are cleaned
regularly. If necessary, brush the coils with an appropriate tool.
Take care not to damage the fins during cleaning.

13.6. FAN MOTOR ASSEMBLY

The fan motor assembly does not require any particular
maintenance. The motors are equipped with sliding bearing. Adding
oil is not necessary. However, each time regular maintenance is
performed, the fan should be inspected to check that it turns freely
without friction.
In the event of the fan motor overload protection device engaging,
wait for the automatic protection to reset itself and seek out the
cause of the protection device being triggered.
To remove the fan motor assembly :
² To withdraw the lower central panel.
² Disconnect the fan motor assembly power supply
starting from the electric box.
² Unscrew the fan motor assembly retaining screws.

13.7. ELECTRICAL SECTION

Check that the main power supply cable is not damaged or altered in such a way as to affect the insulation.
The contact surfaces of relays and contactors should be inspected regularly by an electrician and replaced as
judged necessary. On these occasions the control box should be blown out with compressed air to remove any
accumulation of dust or other contaminants.
Check the earth grounding connection.

13.8. WATER PIPES

Once a year, drain the water pipes and check for scale formation. De-scale the pipes if required.
BEFORE CARRYING OUT ANY OPERATION ON THE EQUIPMENT,
CHECK THAT THE ELECTRICAL POWER SUPPLY IS SWITCHED OFF
AND THAT IT CANNOT BE SWITCHED ON INADVERTENTLY.
IT IS RECOMMENDED THAT THE DISCONNECT SWITCH BE PADLOCKED
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Fan motor assembly