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TWO-SPEED WIRING
Two speed wiring (option) :
5- MAINTENANCE
RECOMMENDATIONS
If the unit is stopped for long periods of time, the fan motors should be run for at least two hours each week.
A periodic visual check of the following is recommended:
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Blocking and frosting of the coil
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Fan operation
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Position of axial fans in their collar
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Possible movement of heaters
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State of each axial fan (tightness to shaft, mechanical state of blades etc)
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Water drain (U-bend)
No manipulation on the fan units, or drain pans should be done without an exclusion zone on the ground, to avoid the presence
of personel.
It is important to ensure that the hinge mechanisms are operational before all manipulations.
In general, at the opening of the movable panels it is necessary to accompany them or slow their opening speed to avoid casing
deformations
CLEANING
The coils should preferably be cleaned:
With compressed air
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By brushing with non-metallic materials
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With clean water spray (3 bars maximum at a distance of 1.5m).
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Avoid spraying motors with water. The electrical supply will have to be switched off during this operation.
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Avoid all aggressive detergents which may cause eventual corrosion.
FAN MOTOR CHANGE
This operation can only be undertaken once the electrical supply has been switched off (consignation).
The access flaps can only be opened when this is the case.
If a fan motor needs to be changed, care should be taken to unplug all purge holes during reinstallation to enable the condensation
to escape.
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