Daikin GYEQ20AN Service Manual page 69

SiAUY361411EA
1
Safety Precautions
Precautions for Electrical Wiring Work
WARNING
CAUTION
Device Overview
Electrical work must be performed by qualified personnel with knowledge
(certification) of electrical work in accordance with the regulations and standards
(laws) related to electrical equipment and work and the installation (work) manual.
Be sure to observe the capacity of the rated power supply, breaker, and switch, and
cable specifications, and do the grounding wire (earthing) work. Erroneous work
can result in electric shock, fire and other dangers.
The electrical wiring must be in accordance with the power supply specifications of
the gas heat pump air conditioning unit.
Power must be supplied via a dedicated branch circuit. Sharing the circuit with
other electric equipment will result in secondary damage due to breaker tripping.
Use the specified cables (wire type/thickness) for electrical work. The cables
should be perfectly connected to the appropriate connectors and fastened tightly
so that the connecting terminals will not be exposed to external forces via the
cables. Incomplete connection or fastening may cause heat or fires.
Be sure to install devices with a configured capacity to the upstream electric circuit
of the power supply wiring in the order of leak circuit breaker and isolating switch
(with fuse) or wiring breaker. Failure to install them may cause fire or electric
shock.
Be sure to do the earthing work. Earthing terminals are located near the terminal
block of the outdoor unit. An imperfect ground connection can result in an electric
shock.
Be sure to do the earthing work when installing the unit in order to prevent electrostatic
charge and interference.
Fix the power supply wiring and transmission wiring with the clamps provided
inside the unit so that the wiring does not touch the following parts:
(1) Moving parts and parts that generate high temperatures (e.g. engine, motor)
(2) Refrigerant circuit (e.g. refrigerant piping, small pressure-relief tubes)
(3) Pointed parts of metal fixtures.
Be sure to install an isolating switch (with fuse) or wiring circuit breaker with the
configured capacity to each unit. Installing a breaker with inappropriate capacity
may cause fire due to overheating or short circuit.
Indoor and outdoor units may
produce interference to AM
radio reception. Install indoor
a n d o u t d o o r u n i t s a n d l a y
wiring at a safe distance from
TVs, radios, audio equipment
and PCs. Refer to the figure on
the right. (Maintain a distance
of 3 m or more, especially in
areas with weak reception.
Pass wiring through the power
supply and transmission wiring
c o n d u i t s , a n d g r o u n d t h e
power supply conduit.)
Do not route any transmission or signal cables alongside electrical voltage lines
including power supply on the outside of the outdoor unit. If the above is
unavoidable, establish a constant offset distance between the two cables (5 cm
indoor units), or lay either cable through a metal conduit that is grounded at one
end.
Do not route any transmission or signal cables with other transmission or signal
cables on the outside of the outdoor unit. If the above is unavoidable, establish a
constant offset distance between the two cables (5 cm indoor units), or lay cables
separately through a special metal conduit that is grounded at one end by
transmission system.
Do not add extension cables halfway between link cables or power supply cables.
Doing so is dangerous.
Do not remove too much cord coating when connecting a wire to a terminal. If the
bare wire is too long, it can cause electric leaks and shocks.
Installation must be according to local and national standards or legislation.
Indoor unit
Breaker
– 1 –
Wiring Manual
1. Safety Precautions
Independent
circuit breaker
Outdoor unit
Remote
controller
022595-00E
0FGHP-EN0821 DGJ002
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