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INSTALLATION MANUAL
12
ELECTRICAL WIRING
- Follow ordinance of your governmental
organization for technical standard related to
electrical equipment, wiring regulations and
guidance of each electric power company.
WARNING
!
Be sure to have authorized electrical
engineers do the electric work using
special circuits in accordance with
regulations and installation manual.
If power supply circuit has a lack of
capacity or electric work deficiency, it may
cause an electric shock or fire.
- Install the Outdoor Unit communication cable
away from the power source wiring so that it is
not affected by electric noise from the power
source. (Do not run it through the same conduit.)
- Be sure to provide designated grounding
work to Outdoor Unit.
CAUTION
!
Be sure to correct the outdoor unit to
earth. Do not connect ground wire to any
gas pipe, liquid pipe, lightening rod or
telephone earth line. If earth is incomplete,
it may cause an electric shock.
- Give some allowance to wiring for electrical
part box of Indoor and Outdoor Units,
because the box is sometimes removed at
the time of service work.
- Never connect the main power source to
terminal block of communication cable. If
connected, electrical parts will be burnt out.
- Use 2-core shield cable for communication
cable.(
mark in the figure below) If
communication cable of different systems
are wired with the same multiple core cable,
the resultant poor transmitting and receiving
will cause erroneous operations. (
the figure below)
- Only the communication cable specified
should be connected to the terminal block
for Outdoor Unit communication.
- Supply line of appliances shall not be lighter
than polychloroprene sheathed. (code
designation 60245 IEC 57)
Outdoor Unit
Indoor
Unit
Outdoor Unit
Indoor
Unit
2-Core Shield Cable
Outdoor Unit
Outdoor Unit
Multi-Core Cable
mark in
Indoor
Unit
Remote
Remote
control
control
Indoor
Unit
Remote
Remote
control
control
Indoor
Indoor
Unit
Unit
Remote
Remote
control
control
Indoor
Indoor
Unit
Unit
Remote
Remote
control
control
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