TB-9-2320-279-13-1
TECHNICAL BULLETIN; AIR CONDITIONING SYSTEM
OPERATOR’S, UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL, INSTALLATION INSTRUCTIONS, AND REPAIR PARTS AND SPECIAL TOOLS LISTS
DECEMBER 2005
TB-9-2320-279-13-1 - Page 200 of 524
TB 9-2320-279-13-1
0015-32
AC DOES NOT COOL OR COOLS INADEQUATELY - Continued
DRAFT
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KNOWN INFO
Power to AC system OK.
AC heater/evaporator blower OK.
AC control circuits OK (except for
temperature control and low pressure
switches).
No moisture in AC refrigerant system.
No AC condenser dryer desiccant
contaminant in AC refrigerant system.
No AC refrigerant oil contaminant in AC
refrigerant system.
No restricted AC hoses.
AC compressor OK.
Temperature control switch OK.
No air or other contaminant in AC refrigerant
system.
AC condenser core OK.
AC expansion valve OK.
AC system not overcharged.
AC condenser dryer OK.
AC evaporator core OK.
AC low pressure switch OK.
AC system charge is not low.
No AC system leaks.
POSSIBLE PROBLEMS
None
22.
Does AC system provide
adequate cooling?
NO
YES
Read WARNING on
page 0015-33/
(0015-34 blank).
WARNING
TEST OPTIONS
Verify Repair.
REASON FOR QUESTION
If AC system provides
adequate cooling, fault
has been corrected.
Fault not corrected,
notify Supervisor.
Fault corrected.
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