9
GENERAL CLEANING
Maintaining proper performance of 52C,P systems
requires conscientious cleaning and care of compo-
nents. See Figure 20. Specific components requi re
periodic cleaning and/or replacement, including the
following:
COMPONENT CLEANING SCHEDULE

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.
Indoor Air Filter Monthly
Vent Air Filter Monthly
Indoor Coil Seasonally
Indoor Fan Seasonally
Outdoor Coil Seasonally
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 qualified service personnel should perform
installation and service procedures on these units.
Untrained personnel may perform basic mainte-
nance tasks such as cleaning and replacing filters.
Refer to General Disassembly section of this manual
for proper procedures to disconnect power to 52C,P
units.
Consider the following safety issues before
beginning:
• New and unfamiliar tasks should be performed
under the supervision of an experienced servic e
technician.
• Personal protective equipment, such as safety
glasses and work gloves, should be used.
• The floor around the work area should be clean and
free of debris.
• The 52C,P unit weighs up to 150 pounds. Use a lift-
ing 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.
FRONT
PANEL
(STANDARD)
EXTERIOR
GRILLE
(ACCESSORY)
CHASSIS
(STANDARD)
WALL SLEEVE
(ACCESSORY)
FIGURE 20 — STANDARD 52C UNIT