Routine Maintenance - LG AR-DR12-05A Installation And Operation Manual

WARNING
Electric shock hazard. Can cause injury or death.
Before attempting to perform any service or maintenance, turn the electrical power to the unit to OFF at disconnect switch(es). Unit may have multi-
ple power supplies.
Use caution when removing access panels or other unit components, especially while standing on a ladder or other potential-
ly unsteady base.
Access panels and unit components can be heavy and serious injury may occur.
This unit requires minimal maintenance to operate properly. Maintenance requirements for this model vary for each installation and depend
greatly on how much the system is used and the cleanliness of the air. Proper maintenance will both increase the life of the system and
maintain its efficiency. Maintenance must be performed by experienced technicians and in the case of refrigeration systems, must be done by
an EPA certified technician.
Maintenance frequency is based on a presumed nominal use of the system. If the system is being run constantly, the frequency should be
adjusted accordingly. If there is seasonal debris in the air which can be drawn into the filters and the coils, they should be checked more
frequently. If the system is being used for only a few hours per day, the frequency may be reduced. Use the maintenance log at the end of
this manual to record each maintenance session and observations and then establish a maintenance schedule that is appropriate for the
installation. The following is provided as a guideline.
Maintenance Frequency
Monthly
1. External Filter
• Clean metal mesh filters
2. Internal Filters
• Replace MERV 8 filters monthly.
• Adjust replacement schedule for MERV 13 and MERV 14 or other filters as inspection requires.
Semiannually
1. Check motor and motor bearings
• Check for excessive heat, vibration or noise. Lubricate bearings in accordance with the motor manufacturer's recommendations.
2. Condensate Drain (if applicable)
• Inspect and clean – refill with water
3. Condenser Coils
• Inspect for cleanliness – clean as required
Annually
It is recommended that the annual inspection and maintenance occur at the start of the cooling season. After completing the checklist, follow
the unit start-up checklist provided in the manual to ensure the refrigeration system operates in the intended matter.
1. Lubrication
• Apply lubricant where required
2. Dampers
• Check for unobstructed operation
3. Blower Wheel and Fasteners
• Check for cleanliness
• Check all fasteners for tightness
• Check for fatigue, corrosion, wear
4. Door Seal
• Check if intact and pliable
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.

ROUTINE MAINTENANCE

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