Safety Precautions
16
NOTE: In the USA, EPA Section 608
Certification is required to work on refrigeration
systems.
Auto Start/Stop
Battery Removal
This order is important because the frame is
grounded to the negative battery terminal. If the
negative terminal is still connected, a complete
circuit exists from the positive terminal of the
battery to the frame. Metal objects contacting the
positive side and the frame simultaneously will
cause sparks or arcing. If there are sufficient
hydrogen gases emitted from the battery, an
explosion might occur, causing equipment
damage, serious injury, even death.
Refrigerant Hazards
Refrigerant Oil Hazards
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
TM
option
start automatically 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.
DANGER: Disconnect the negative
battery terminal (-) first when removing a
battery. Connect the positive terminal (+)
first when installing a battery.
DANGER: Do not use a Halide torch.
When a flame comes in contact with
refrigerant, toxic gases are produced.
These gases can cause suffocation, even
death.
DANGER: Store refrigerant in proper
containers, out of direct sunlight and away
from intense heat. Heat increases pressure
inside storage containers, which can cause
them to burst.
DANGER: Do not use oxygen (O
2
) or
compressed air for leak testing. Oxygen
mixed with refrigerant is combustible.
WARNING: Wear butyl lined gloves when
handling refrigerant to help prevent
frostbite.
CAUTION: Refrigerant in a liquid state
evaporates rapidly when exposed to the
atmosphere, freezing anything it contacts.
Be careful when handling refrigerant to
protect your skin from frostbite.
CAUTION: When being transferred,
refrigerant must be in liquid state to avoid
possible equipment damage.
CAUTION: When transferring
refrigerant, use a process that prevents or
greatly restricts refrigerant from escaping
into the atmosphere. Refrigerant damages
the earth’s upper ozone layer.
WARNING: Protect your eyes from
contact with refrigerant oil. The oil can
cause serious eye injuries. Avoid
prolonged or repeated contact with
refrigerant oil. To prevent irritation, wash
your hands and clothing thoroughly after
handling the oil.
CAUTION: Use the correct oil in Thermo
King systems to avoid damaging
equipment and invalidating its warranty.
CAUTION: Do not mix refrigerant oils
because that can cause system damage.
CAUTION: Use dedicated equipment to
prevent contaminating systems with the
wrong type of oil.
CAUTION: Store refrigerant oil in an
approved sealed container to avoid
moisture contamination.
CAUTION: Do not expose the refrigerant
oil to the air any longer than necessary.
The oil will absorb moisture, which results
in much longer evacuation times and
possible system contamination.
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