Piper CHEROKEE WARRIOR PA-28-151 1995 Maintenance Manual page 555

PIPER CHEROKEE WARRIOR SERVICE MANUAL
Liquid refrigerant on the skin will cause frostbite. Treat with
cool water and protect with petroleum jelly. Seek medical
attention.
Use care not to discharge refrigerant into a closed room.
Refrigerant displaces air in the room and causes oxygen
s t a rvation. Gaseous refrigerant is heavier than air and flows
to container bottom.
Use care not to discharge refrigerant into an open flame or
onto a very hot surface (500°F). Poisonous phosgene gas is
generated by heat action on the refrigerant.
Do not apply direct flame or other high heat source to a
r e f r i gerant container, because high pressures result. If
h e a ting refrigerant containers, container pressure must be
monitored and kept below 150 psi.
b. System Servicing Precautions
Discharge systems slowly to prevent escape of liquid refrigerant
and loss of lubricating oil. Read and follow all instructions
provided by manufacturer of equipment used for discharging
system.
Do not let air conditioning systems open to the atmosphere
when discharged. Moisture and other contaminates will enter
and damage open systems.
Never add anything but pure R12 refrigerant, as appropriate,
and appropriate refrigerant oil (mineral oil) into system.
Keep refrigerant oil containers tightly sealed and clean to
p r event absorption of moisture or other contamination.
Use only approved refrigeration oil in compressor (mineral oil)
Replace with new oil if in doubt about compressor oil
c l e a n l iness.
Revised: February 28, 1995
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3A20
Island Enterprises
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