Maintenance - Modine Manufacturing ECO Technical Manual

ENGLISH

11. Maintenance

11.1. Checks, inspections and maintenance must be carried out by specialist personnel authorised to operate.
11.2. During the operations of maintenance, repair and cleaning, always use personal protective equipment (e.g.
gloves sufficiently resistant to mechanical hazards) to reduce the risk of injury in the event of contact with
the sharp edges of the metal sheets or with the finned pack.
11.3. Do not perform any operation on the unit before disconnecting the power supply. Cut off the energies and
discharge them. Put the main switch in the "0-OFF" position and lock it with a padlock. The key must be
kept by the maintenance technician until the end of the intervention. Wait until all the fans have stopped
turning. After disconnecting the power supply wait 5 minutes before opening the junction box on the
machine.
11.4. Do not perform maintenance in case of bad weather.
11.5. It is advisable to check, at least once every six months, that the electrical connection, earthing and
components subject to greater wear (motors, switches) are working correctly. If worn or obsolete replace
them with equivalent new components.
11.6. It is advisable to check, at least once every six months, that all the electrical, mechanical and circuitry parts
affected by fluids are in good working order. Check the integrity and fastening of the fan protection grid.
11.7. It is advisable to check, at least once every six months, the correct tightening of the screws according to the
current regulations.
11.8. If a fan is turned off for a long time, it should be turned on for at least two hours each month to remove any
traces of moisture inside it.
11.9. Check the cleanliness of the finned package at least once a month.
11.10. Clean the surfaces of the finned pack and of the fans at least once every six months.
11.11. Cleaning the finned package:
11.11.1. Place the main switch in the "0-OFF" position and wait for all the fans to stop turning and for the hot
surfaces to cool down.
11.11.2. Use compressed air at a maximum pressure of 10 bar and at a minimum distance of 150 mm, directed
perpendicularly against the finned pack to avoid bending or damage to the fins.
11.11.3. Use a jet of water at a max pressure of 50 bar for damp dirt or grease at a minimum distance of 150
mm, directed perpendicularly against the finned pack, avoiding bends or damage to the fins and pipes.
If appropriate add a neutral detergent. Rinse and then dry with compressed air as stated in point
11.11.2. Make sure that the electrical components are not affected by the jet of water. If necessary,
provide adequate coverage.
11.11.4. If necessary, vacuum from the air inlet side.
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