52S
SERIES
GENERAL CLEANING
Maintaining proper performance of 52S systems (Figure 21) requires conscientious cleaning and care of components. Speci®c components require periodic clean- ing and/or replacement, including the following:
COMPONENT CLEANING SCHEDULE
Indoor Air Filter | Monthly |
Vent Air Filter | Monthly |
Indoor Coil | Seasonally |
Indoor Fan | Seasonally |
Outdoor Coil | Seasonally |
CLEANING AND SAFETY
Before starting to clean a unit, read the instructions thoroughly and gather the necessary tools for the job. Review all safety information on unit and in literature.
Before cleaning, servicing, performing maintenance, or removing the chassis from the wall sleeve, discon- nect all power to the unit to avoid the possibility of electrical shock and personal injury. Only trained and quali®ed service personnel should perform installation and service procedures on these units. Untrained personnel may perform basic maintenance tasks such as cleaning and replacing ®lters. Refer to General Disassembly section of this manual for proper procedures to disconnect power to 52S units.
Consider the following safety issues before beginning:
·New and unfamiliar tasks should be performed under the supervision of an experienced service technician.
·Personal protective equipment, such as safety glasses and work gloves, should be used.
·The ¯oor around the work area should be clean and free of debris.
·The 52S unit weighs up to 150 pounds. Use a lifting device or ask for assistance if the unit must be moved.
·Make sure tools are the correct tools for the job, and that they are working properly and in good condition.
WALL SLEEVE
CHASSIS
FRONT COVER
FIGURE 21 Ð FRONT PANEL, CHASSIS, AND SLEEVE
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