Mitsubishi Electric GB-50ADA-A Installation Instructions Manual page 3

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.
CAUTION
To reduce the risk of shorting, current leakage, electric
shock, malfunctions, smoke, or fire, do not install the
controller in a place exposed to water or in a condens-
ing environment.
Precautions during wiring
WARNING
To reduce the risk of damage to the controller, malfunc-
tions, smoke, or fire, do not connect the power cable to
the signal terminal block.
Properly secure the cables in place and provide
adequate slack in the cables so as not to stress the
terminals.Improperly connected cables may break,
overheat, and cause smoke or fire.
To reduce the risk of injury or electric shock, switch off
the main power before performing electrical work.
All electric work must be performed by a qualified
electrician according to the local regulations, standards,
and the instructions detailed in the Installation
Manual.Capacity shortage to the power supply circuit or
improper installation may result in malfunction, electric
shock, smoke, or fire.
CAUTION
To reduce the risk of electric shock, shorting, or
malfunctions, keep wire pieces and sheath shavings out
of the terminal block.
Precautions for moving or repairing the controller
WARNING
The controller should be repaired or moved only by qualified
personnel. Do not disassemble or modify the controller.
Improper installation or repair may cause injury, electric
shock, or fire.
Take appropriate safety measures against earthquakes
to prevent the controller from causing injury.
To prevent injury, install the controller on a flat surface
strong enough to support its weight.
Controller must be installed by qualified personnel
according to the instructions detailed in the Installation
Manual.
Improper installation may result in electric shock or fire.
Install an electric leakage breaker and a residual
current circuit breaker on the power supply.
Use properly rated breakers and fuses (breaker, local
switch <switch + fuse>, no-fuse breaker).The use of a
breaker with a breaking capacity greater than the
specified capacity may cause electric shock, malfunc-
tions, smoke, or fire.
To reduce the risk of current leakage, overheating,
smoke, or fire, use properly rated cables with adequate
current carrying capacity.
Proper grounding must be provided by a licensed
electrician.
Do not connect the grounding wire to a gas pipe, water
pipe, lightning rod, or telephone wire. Improper ground-
ing may result in electric shock, smoke, fire, or malfunc-
tion due to electrical noise interference.
To reduce the risk of shorting, current leakage, electric
shock, or malfunctions, keep the cables out of contact
with controller edges.
CAUTION
To reduce the risk of shorting, electric shock, fire, or
malfunction, do not touch the circuit board with tools or
with your hands, and do not allow dust to accumulate
on the circuit board.
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