Refrigeration Service Operations (Rev. 04/03)
83
gen before using. NEVER USE EQUIPMENT THAT MAY
BE CONTAMINATED WITH AUTOMOTIVE TYPE
POLYALKYLENE GLYCOL (PAG) OILS.
System Clean-up
Existing clean up devices such as suction line filters and
compressor oil filters may be used if they are thoroughly
cleaned and new filter elements are installed. All standard
compressor oils must be removed from clean-up devices to
prevent contamination of R-134a and R-404A systems.
Dangerous contamination will result if other refrigerants or
standard oils are introduced to R-134a or R-404A systems.
NOTE: For additional information on parts and supplies,
consult your local Thermo King dealer and Thermo King
Tool Catalog TK No. 5955.
Refrigerant Recovery
Present systems can be adapted to the recovery of R-134a
and R-404A but should be dedicated to the recovery of
these refrigerants. Consult the manufacturer of your recov-
ery equipment for details.
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