LG RCAW Operation & Maintenance Manual page 48

Service
Condenser
Maintenance and cleaning of condenser coil
Periodically cleaning the surface of the coil is essential in maintaining the normal operation of the unit. By removing any
contaminant or hazardous substance on the coil, you can extend the life of the coil and the unit. The following mainte-
nance and cleaning method is recommended as part of the periodical maintenance activity to extend the life of the coil.
• Remove fiber on surface : Use the vacuum cleaner to clean any fiber or dust on the surface. If you cannot use the
vacuum cleaner, use a soft non-metallic brush to clean the surface. When using both methods to clean the surface,
clean in the same direction as the pin. Because the pin can bend very easily, you can bend the pin or scratch the protec-
tive coating on the surface by applying the cleaning utensil across the pin.
If you use a water hose to clean the coil, be careful as dust or fiber can get inside the coil.
Completely remove any fiber or dust on the surface before cleaning it with clean water.
• Periodical water cleaning: Periodically cleaning the pin with water helps the maintenance of the coil installed on the
coast or industrial site. But due to the fragility of the installed coil, you must rinse the coil with water at low speed in
order to prevent any damage to the coil. It is recommended to clean once every one to two months.
Never use any type of cleaner such as chemical, bleach, acid or alkali cleaner etc. on the coil.
These types of cleaners can accelerate the corrosion of the pin and tube, and make it difficult to
rinse with water.
Never clean the coil using high speed water or pressured air. Doing so can bend the coil and
increase the pressure drop on the air side of the condenser. This can result in performance dete-
rioration or cause the product to stop operating.
48 Chiller Air-cooled Screw