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SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
GENERAL PRECAUTIONS
• Always wear goggles or safety glasses.
Refrigerant liquid and battery acid can
permanently damage the eyes.
• Never operate the unit with the discharge
valve closed. Never close the compressor
discharge valve with the unit in operation.
• Keep your hands, clothing and tools clear of
the fans when the refrigeration unit is
running. If it is necessary to run the
refrigeration unit with covers removed, be
very careful with tools or meters being used
in the area.
• Never apply heat to a sealed refrigeration
system or container.
• Fluorocarbon refrigerants produce toxic
gases in the presence of an open flame or
electrical arc. The gases are severe
respiratory irritants capable of causing death.
• Firmly tighten all mounting bolts. Check
each bolt for correct length for their
particular application.
• Use caution when working around exposed
coil fins. The fins can cause painful
lacerations.
• Use caution when working with a refrigerant
or refrigeration system in any closed or
confined area with a limited air supply (for
example, a trailer, container or in the hold of
2
a ship). Refrigerant tends to displace air and
can cause oxygen depletion. This can result
in suffocation and possible death.
• Use caution and follow the manufacturer's
suggested practices when using ladders or
.
scaffolds
ELECTRICAL PRECAUTIONS
The possibility of serious or fatal injury from
electrical shock exists when servicing a
refrigeration unit. Extreme care must be used
when working with a refrigeration unit that is
connected to its power source. Extreme care
must be used even if the unit is not running.
Lethal voltage potentials can exist at the unit
power cord, inside the control box, inside any
high voltage junction box, at the motors and
within the wiring harnesses.
PRECAUTIONS
In general disconnect the units power cord
before repairing or changing any electrical
components.
Note that even though the controller is turned
off, one of the phases is still live and represents
a potential danger of electrocution
Where turning of the unit is not possible (for
example at voltage measuring or
troubleshooting), follow safety precautions
below.
• Turn the unit On/Off switch to Off before
connecting or disconnecting the unit power
plug. Never attempt to stop the unit by
disconnecting the power plug.
• Be certain the unit power plug is clean and
dry before connecting it to a power source.
• Use tools with insulated handles. Use tools
that are in good condition. Never hold metal
tools in your hand if exposed, energized
conductors are within reach.
• Do not make any rapid moves when working
with high voltage circuits. Do not grab a
falling tool or other object. People do not
contact high voltage wires on purpose. It
occurs from an unplanned movement.
• Treat all wires and connections as high
voltage until ammeter and wiring diagram
show otherwise.
• Never work alone on high voltage circuits on
the refrigeration unit. Another person should
always be standing by in the event of an
accident to shut off the refrigeration unit and
to aid a victim.
• Have electrically insulated gloves, cable
cutters and safety glasses available in the
immediate vicinity in the event of an
accident.
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