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Safety Precautions
• Thoroughly read the following safety precautions prior to installation.
• Observe these precautions carefully to ensure safety.
• After reading this manual, pass the manual on to the end user to retain for future reference.
• The users should 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 units. Make sure that the manual is passed on to any future air condition system users.
WARNING
Indicates a risk of death or serious injury.
CAUTION
Indicates a risk of injury or structural damage.
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Nomenclature
(Prohibited actions)
(Do not touch)
(No water)
(No wet hands)
(Fire hazards)
(Injury hazards)
(Important actions) (Grounding required)
(Electric shock hazards)
General precautions
All electric work must be performed by qualified personnel.
WARNING
To reduce the risk of fire or explosion, do not place
flammable materials or use flammable sprays around
the controller.
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 injury, wear protective gear when
working on the controller.
Do not touch the display panel, switches, or buttons
with a sharp object.
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 exces-
sive force on the glass parts.
Do not install the controller 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 controller or cause
certain components of the controller to corrode, which can
result in electric shock, malfunctions, smoke, or fire.
CAUTION
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 injury or electric shock, before
spraying a chemical around the controller, stop the
operation and cover the controller.
Always replace a fuse with the correct current rating.
Using a fuse with the wrong rating or substituting or a
copper wire may cause a fire or explosion.
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, keep children away while
installing, inspecting, or repairing 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.
