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Section X. AIR CONDITIONING COMPONENTS
3-34. Refrigerant Piping Inspection
Inspect refrigerant hoses, tubing and fittings for
signs of leakage, abrasion, kinking, or if the hoses
show signs of wear or fittings become loose, replace
the hoses.
Note. If a hose has been worn or damaged to the extent that
it loses its refrigerant, the system must be recharged after the
hose is replaced.
3-35.
Condenser and
E v a p o r a t o r C o il
Inspection
The coils, figures 1-3 and 1-4 should be inspected
as often as necessary to insure maximum operating
capacity of the unit. Dirt and lint loaded coils or
bent fin coils got only restrict normal volume of air
flow but also insulate the coils. Report a defective
coil to direct support maintenance.
3-36. Sight Glass Inspection
Wipe the refrigerant sight glass, figure 1-5, with a
soft clean cloth and observe the color of the
indicator for dryness of the refrigerant system. If
the indicator is yellow (indicating presence of
moisture in the system) or if bubbles are observed
after 15 minutes of operation in the cool mode,
report condition to direct support maintenance.
3-26
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