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Page Title:
EVAPORATOR COIL (CLEANING).-Continued |
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 TM5-4120-383-14
4-37.
EVAPORATOR COIL (CLEANING).-Continued
Disconnect input power from the air conditioner
before performing maintenance on any part of the
electrical system. The voltages used can be lethal.
Disassemble.
a.
(1) Disconnect power at power source.
(2) Remove eight screws and top front cover.
(3) Remove six screws, washers, and supply air louver.
(4) Lift mist eliminator out of unit.
Inspect.
b.
(1) Check for accumulated dirt.
Clean if 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.
Compressed air used for cleanin g purposes will not
2
exceed 30 psi (2.1 kg/cm ).
Do not use steam to clean coil.
c. Cleaning. Clean coil with a soft bristled brush, vacuum
cleaner, and brush attachment, or use compressed air at 30 psi (2.1
2
kg/cm ) or less from the inside of the coil to blow the dirt out.
Take care to avoid fin damage. When using compressed air wear
safety glasses or goggles.
Dirt can be blown into your eyes.
Should a leak or major damage be evident refer to direct support
maintenance.
4-104
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