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WARNING
● Do not use any sprays such as insecticide, lacquer, hair spray or other flammable gases within
approximately 1.3m (4 ft) from the system.
● If the circuit breaker or fuse is often activated, stop the system and contact your service contractor.
● Check that the ground wiring is securely connected. If the unit is not correctly grounded, it may cause
electric shock. Do not connect the ground wiring to gas piping, condensate piping, lighting conductor or
ground wiring for telephones.
● Before performing any brazing work, check to ensure that there is no flammable material around.
When using refrigerant, be sure to wear leather gloves to prevent injury from cold.
● Insulate electrical wiring, condensate piping, and electrical components from threats posed by burrowing
animals and temperature extremes. Failure to do so can, over time, deteriorate system performance.
● Secure the cables. External forces on the terminals could lead to a fire.
● Tighten the flare nut with a torque wrench in the specifi d manner. Do not apply excessive force to the
flare nut when tightening. If you do, the flare nut can crack and refrigerant leakage may occur.
● When maintaining, relocating or disposing of the unit, dismantle the refrigerant piping after the compressor
stops.
● Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram and
these instructions when wiring. Improper connections and inadequate grounding can cause serious injury
or death.
● Perform all electrical work in strict accordance with this installation and maintenance manual and all
relevant regulatory standards.
● Use specified cables between units.
● Be sure to install circuit breakers (ground fault interrupter, isolating switch, molded case circuit breaker
and so on), with the specified capacity. Ensure that the wiring terminals are tightened securely to
recommended torque specifications If a circuit breaker or fuse is frequently activated, shut down the
system and contact your service contractor.
● Clamp electrical wires securely with a cable clamp after all wiring is connected to the terminal block.
In addition, run wires securely through the wiring access channel.
● When installing the power lines, do not apply tension to the cables. Secure the suspended cables at
regular intervals, but not too tightly.
● After stopping operation, be sure to wait at least five minutes before turning off the main power switch.
Otherwise, water leakage or electrical breakdown may result. Disconnect the power supply completely
before attempting any maintenance for electrical parts. Check to ensure that no residual voltage is present
after disconnecting the power supply.
● Insulate the refrigerant pipe connection to prevent condensation.
● Be sure to attach the cover so that it fits securely on the electrical box without any gaps. Secure the
cover with screws.
SAFETY SUMMARY
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