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9 - MAINTENANCE
9.7 INTERNAL AIR COIL
Accidental contact with the fins of the exchanger may cause
small cuts. When performing the following steps, use
protective gloves.
The finned surfaces of the cooling coils and especially the
condensation collection trays are the places where micro-
organisms and moulds most easily flourish. It is therefore
very important to clean regularly with suitable detergents and
disinfect with appropriate products as necessary.
Dust and deposits could cause obstructions .
In the tank can also proliferate microorganisms and mold.
Very important to provide for a periodic cleaning with
appropriate detergents and in case to a disinfection with
sanitizing products.
Clean the tank, pour some water into the tank and check
water flows normally.
9.8 CONDENSATE DISCHARGE
9.11 ELECTRIC FANS
Check :
• the fans and the relative protection gridsare well fixed
• The fan bearings (evident by noise and anomalous
vibrations )
• the terminal protection covers are closed and the cable
holders are properly positioned
Check the fixing screws and the operation of the anti-vibration
devices in order to prevent the transmission of vibrations in
the room .
9.9 DUCTING
Regularly check the cleaning and the fixing status .
9.10 ELECTRICAL HEATING ELEMENTS
9.13 WATER FILTER
Verify that there are no impurities which hinder the smooth
passage of water.
It is very important for the exchanger to be able to provide the
maximum thermal exchange. Therefore, it is essential for the
inner surfaces to be clean of dirt and incrustations.
Periodically check the difference between the temperature of
the supply water and the condensation temperature. If the
difference is greater than 8 °C – 10 ° C it is advisable to clean
the exchanger.
The clearing must be effected :
• With circulation opposite to the usual one
• With a speed at least 1,5 times higher than the nominal one
• With an appropriate product moderately acid (95% water +
5% phosphoric acid
• After the cleaning rince with water to inhibe the detergent
rests.
9.12 WATER EXCHANGER
9.14 TENSIONS
After switching off the power, wait at least 5 minutes before
accessing to the electrical panel or any other electrical
component.
Check with a multimeter that there are no residual tensions
Regularly check the fixing status .
9.15 OIL COMPRESSOR ELECTRIC HEATERS
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