Thermo King 002008, Manual

Page: 11 / 155

11
Safety Precautions
General Practices
1. Always wear goggles or safety glasses.
Refrigerant liquid 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 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 the 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. Fluorocarbon refrigerants, in the presence of
an open flame or electrical short, produce
toxic gases that are severe respiratory irritants
capable of causing death.
7. Make sure all mounting bolts are tight and are
the correct length for their particular
application.
8. Use extreme caution when drilling holes in the
unit. The holes may weaken structural
components. Holes drilled into electrical
wiring can cause fire or explosion.
9. Use caution when working around exposed
coil fins. The fins can cause painful
lacerations.
10. Use caution when working with a refrigerant
or refrigeration system in any enclosed or
confined area with a limited air supply (for
example, a bus or garage). Refrigerant tends to
displace air and can cause oxygen depletion,
resulting in suffocation.
11. EPA Section 608 Certification is needed to
work on refrigeration systems.
Refrigerant
Although fluorocarbon refrigerants are classified
as safe refrigerants, certain precautions must be
observed when handling them or servicing a unit
in which they are used. When exposed to the
atmosphere in the liquid state, fluorocarbon
refrigerants evaporate rapidly, freezing anything
they contact.
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.
• Skin: Flush area with large amounts of
lukewarm water. Do not apply heat. Remove
contaminated clothing and shoes. Wrap burns
with dry, sterile, bulky dressing to protect
from infection/injury. Get medical attention.
Wash contaminated clothing before reuse.
• Inhalation: Move victim to fresh air and use
CPR or mouth-to-mouth ventilation, if
necessary. Stay with victim until arrival of
emergency medical personnel.
Refrigerant Oil
Avoid refrigeration oil contact with the eyes.
Avoid prolonged or repeated contact of
refrigeration oil with skin or clothing. Wash
thoroughly after handling refrigeration oil to
prevent irritation.
First Aid:
In case of eye contact, immediately
flush with plenty of water for at least 15 minutes.
Call a physician. Wash skin with soap and water.
Electrical Hazards
High Voltage
When servicing or repairing a refrigeration unit,
the possibility of serious or even fatal injury from
electrical shock exists. Extreme care must be used
when working with an operating refrigeration
unit. Lethal voltage potentials can exist on
connections in the high voltage tray of the control
box.