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T -309
Safety-1
SAFETY SUMMARY
GENERAL SAFETY NOTICES
The following general safety notices supplement the specific warnings and cautions appearing elsewhere in this
manual. They are recommended precautions that must be understood and applied during operation and maintenance
of theequipment covered herein. The general safety noticesare presentedin thefollowing threesections labeled: First
Aid, Operating Precautions and Maintenance Precautions. A listing of the specific warnings and cautions appearing
elsewhere in the manual follows the general safety notices.
FIRST AID
Aninjury,no matterhowslight, shouldnever gounattended. Always obtainfirst aidormedical attentionimmediately.
OPERATING PRECAUTIONS
Always wear safety glasses.
Keep hands, clothing and tools clear of the evaporator and condenser fans.
No workshould beperformed on theunit until all circuitbreakers, start-stopswitches areturned off, and powersupply
is disconnected.
Always work in pairs. Never work on the equipment alone.
In case of severe vibration or unusual noise, stop the unit and investigate.
MAINTENANCE PRECAUTIONS
Beware of unannounced starting of the evaporator and condenser fans. Do not open the condenser fan grille or
evaporator access panels before turning power off, disconnecting and securing the power plug.
Be surepoweris turnedoffbeforeworking on motors, controllers,s olenoid valvesand electrical control switches. Tag
circuit breaker and power supply to prevent accidental energizing of circuit.
Do not bypass any electrical safety devices, e.g. bridging an overload, or using any sort of jumper wires. P roblems
with the system should be diagnosed, and any necessary repairs performed, by qualified service personnel.
Whenperforming anyarcwelding onthe unit orcontainer,disconnect all wireharnessconnectors fromthe modules in
both control boxes. Do not remove wire harness from the modules unless you are grounded to the unit frame with a
static safe wrist strap.
In case of electrical fire, open circuit switch and extinguish with CO
2
(never use water).
UNIT LABEL IDENTIFICATION
To help identify the label hazards on the unit and explain the level of awareness each one carries, an explanation is
given with the appropriate consequences:
DANGER -- means an immediate hazard which WILL result in severe personal injury or death.
WARNING -- means to warn against hazards or unsafe conditions which COULD result in severe per sonal injury or
death.
CAUTION -- means to warn against potential hazard or unsafe practice which could result in minor personal injury,
product or property damage.
SPECIFIC WARNING AND CAUTION STATEMENTS
The statements listed below are applicable to the refrigeration unit and appear elsewhere in this manual. These
recommended precautions must be understood and applied during operation and maintenance of the equipment
cover ed her ein.
WARNING
Beware of unannounced starting of the evaporator and condenser fans. The unit may cycle the fans
and compressor unexpectedly as control requirements dictate.
WARNING
Do not attempt to remove power plug(s) befor e turning OFF start-stop switch (ST), unit circuit break-
er(s) and external power source.
WARNING
Make sure the power plugs are clean and dry before connecting to any power receptacle.