Prevent contact of refrigerant gas with flame or hot metal surfaces.
Heat causes the refrigerant to break down and form carbonyl
chloride (phosgene), a highly toxic and corrosive gas. In case of
refrigerant leaks, ventilate area immediately.
Wear rubber gloves to prevent acid burns when handling sludge
from a burned out compressor.
When a hermetically sealed motor burns out, the stator winding
decomposes forming carbon, water and acid which contaminate the
removed from the system to prevent repeated motor failures. Motor
burnout may also cause damage to the air conditioner electrical
system. The following cleanup procedures must be followed in case
of compressor motor burnout.
Simple failure without motor burnout does not require extensive
cleaning of the entire refrigerant system.
Remove burned out compressor. Refer to subparagraph g.
Connect hose from high pressure service valve to a bucket to collect
contaminants. Connect a hose from a cylinder of R11 directly to the low pressure (suction)
Fabricate jumper tubing to connect discharge and suction lines that were
previously disconnected when compressor was removed from the unit.
Slowly open the high pressure service valve.
Open the low pressure (suction) service valve.