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TM-4120-387-14
Figure 4-60. Evaporator Coil
a.
Inspection of installed coil
(1) Check for accumulated dirt.
Clean if an accumulation of dirt is
evident.
(2) Check fins for dents, bent edges, or any condition that would block or
distort air flow.
Straighten all damaged fins with a plastic fin comb.
Death or serious injury could occur if compressed air is
directed against the skin.
Do not use compressed air for
cleaning or drying unless the pressure is/has been reduced to
30 psi (2.11 kg/cm2) or less.
When working with compressed
air always use chip guards and wear eye protection and other
protective equipment.
DO NOT USE STEAM TO CLEAN COIL.
Steam cleaning of coil may raise the temperature of
refrigeration-22 to a degree where resulting pressures in the
refrigeration system could damage refrigeration components.
b.
Cleaning.
Clean coil with a soft bristle brush, vacuum cleaner and brush
attachment, or use compressed air at 30 psi or less from the inside of the unit to
blow the dirt out.
Take care to avoid fin damage.
4-146
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