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Safety Precautions
GENERAL PRACTICES
1. ALWAYS WEAR GOGGLES OR SAFETY
GLASSES. Refrigerant liquid, refrigeration oil, and
battery acid can permanently damage the eyes (see First
Aid under Refrigeration Oil).
2. Never operate the unit with the compressor discharge
valve closed.
3. Keep your hands, clothing and tools clear of the fans
and belts when the unit is running. This should also be
considered when opening and closing the compressor
service valves.
4. Make sure gauge manifold hoses are in good condition.
Never let them come in contact with a belt, fan motor
pulley, or any hot surface.
5. Never apply heat to a sealed refrigeration system or
container.
6. Refrigerants in the presence of an open flame produce
toxic gases. These gases are severe respiratory irritants
capable of causing death.
7. Make sure all mounting bolts are tight and are of cor-
rect length for their particular application.
8. Use extreme caution when drilling holes in the unit.
The holes may weaken structural components, and
holes drilled into electrical wiring can cause fire or
explosion. Holes drilled into the refrigeration system
will release refrigerant.
9. Use caution when working around exposed coil fins.
The fins can cause painful lacerations.
10. Use caution when working with a refrigerant or refrig-
eration system in any closed or confined area with a
limited air supply (for example, a truck box or garage).
Refrigerant tends to displace air and can cause oxygen
depletion resulting in suffocation and possible death.
AUTO START/STOP
CAUTION: The unit may start automatically and at any
time when the unit On-Off switch is in the ON position.
Units with the CYCLE-SENTRY option start automati-
cally in both CYCLE-SENTRY mode and Continuous
mode. Be sure to turn the On-Off switch OFF before
opening doors or inspecting or working on any part of the
unit.
REFRIGERANT
At Thermo King we recognize the need to preserve the
environment and limit the potential harm to the ozone layer
that can result from allowing refrigerant to escape into the
atmosphere.
We strictly adhere to a policy that promotes the recovery
and limits the loss of refrigerant into the atmosphere.
When working on transport refrigeration systems, a recov-
ery process that prevents or minimizes refrigerant loss to the
atmosphere is required by law. In addition, service person-
nel must be aware of Federal, State and local regulations
governing the use of refrigerants and certification of techni-
cians.
When refrigerants are exposed to the atmosphere in liquid
form, they evaporator rapidly, freezing anything they con-
tact. If they contact the skin, severe frostbite can result.
First Aid
In the event of frost bite, the objectives of First Aid are to
protect the frozen area from further injury, to warm the
affected area rapidly and to maintain respiration.
• EYES: For contact with liquid, immediately flush eyes
with large amounts of water and get prompt medical
attention.
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