Thermo King 098916, Руководство по обслуживанию

Страница: 16 / 196

Safety Instructions
15
are available at most electronic equipment
distributors. Do not wear these straps with
power applied to the unit.
• Avoid contacting the electronic components
on the circuit boards of the unit being
serviced.
• Leave the circuit boards in their static proof
packing materials until ready for installation.
• Return a defective controller for repair in the
same static protective packing materials from
which the replacement component was
removed.
• Check the wiring after servicing the unit for
possible errors. Complete this task before
restoring power.
Welding of Units or Containers
Electric welding can cause serious damage to
electronic circuits when performed on any portion
of the refrigeration unit, container or container
chassis with the refrigeration unit attached. It is
necessary to ensure that welding currents are not
allowed to flow through the electronic circuits of
the unit. The following statements must be rigidly
adhered to when servicing these units to avoid
damage or destruction.
• Disconnect all power to the refrigeration unit.
• Disconnect all quick-disconnect wire
harnesses from the back of the controller.
• Disconnect all wire harnesses from the
Remote Monitor Modem (RMM).
• Switch all of the electrical circuit breakers in
the control box to the Off position.
• Weld unit and/or container per normal
welding procedures. Keep ground return
electrode as close to the area to be welded as
practical. This will reduce the likelihood of
stray welding currents passing through any
electrical or electronic circuits.
• The unit power cables, wiring and circuit
breakers must be restored to their normal
condition when the welding operation is
completed.
Removing Refrigerant Properly
Use a refrigerant recovery process that prevents or
absolutely minimizes refrigerant escaping to the
atmosphere. Fluorocarbon refrigerants are
classified as safe refrigerants when proper tools
and procedures are used. Certain precautions must
be observed when handling them or servicing a
unit in which they are used.
Fluorocarbon refrigerants evaporate rapidly,
freezing anything they contact when exposed to
the atmosphere in the liquid state. In the event of
frost bite, attempt to protect the frozen area from
further injury, warm the affected area rapidly, and
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.