2
Safety Precautions
Indicates a risk of death or serious injury.
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Thoroughly read the following safety precautions prior to installation.
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Observe the following precautions to ensure safety.
Indicates a risk of serious injury or structural damage.
WARNING
CAUTION
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After reading this manual, pass it on to the end user to retain for future reference.
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Keep this manual for future reference and refer to it as necessary. This manual should be made available to those who repair or relocate
the controller. Make sure that the manual is passed on to any future AT-50B users.
All electric work must be performed by qualified personnel.
General precautions
(Prohibited actions)
(Do not touch)
(No water)
(No wet hands)
(Electric shock hazards) (Injury hazards)
(Important actions)
WARNING
Do not install the unit in a place where large amounts
of oil, steam, organic solvents, or corrosive gases,
such as sulfuric gas, are present or where acidic/
alkaline solutions or sprays are used frequently.
These substances can compromise the performance
of the unit or cause certain components of the
unit to corrode, which can result in electric shock,
malfunctions, smoke, or fire.
To reduce the risk of shorting, current leakage,
electric shock, malfunctions, smoke, or fire, do not
wash the controller with water or any other liquid.
To reduce the risk of electric shock, malfunctions,
smoke or fire, do not operate the switches/buttons or
touch other electrical parts with wet hands.
To reduce the risk of fire or explosion, do not place
flammable materials or use flammable sprays around
the controller.
CAUTION
To reduce the risk of damage to the controller, do not
directly spray insecticide or other flammable sprays
on the controller.
To reduce the risk of electric shock or malfunctions,
do not touch the touch panel, switches, or buttons
with a pointy or sharp object.
Precautions during installation
WARNING
Do not install the controller where there is a risk of
leaking flammable gas.
If flammable gas accumulates around the controller, it
may ignite and cause a fire or explosion.
Properly dispose of the packing materials. Plastic
bags pose suffocation hazard to children.
To reduce the risk of injury or electric shock, before
spraying a chemical around the controller, stop the
operation and cover the controller.
To reduce the risk of injury or electric shock, stop
the operation and switch off the power supply before
cleaning, maintaining, or inspecting the controller.
Properly install all required covers to keep moisture
and dust out of the controller. Dust accumulation and
water can cause electric shock, smoke, or fire.
To reduce the risk of injury and electric shock, avoid
contact with sharp edges of certain parts.
To avoid injury from broken glass, do not apply
excessive force on the glass parts.
To reduce the risk of injury, wear protective gear
when working on the controller.
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Nomenclature
