WARNING
General
Before starting to repair the VRF Dx-coil interface, read carefully through the Service Manual,
and repair the air conditioner by following its instructions.
Only qualified service person is allowed to repair the VRF Dx-coil interface.
Repair of the VRF Dx-coil interface by unqualified person may give rise to a fire, electric shocks,
injury, water leaks and / or other problems.
Do not use any refrigerant different from the one specified for complement or replacement.
Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may result in a
failure or explosion of the product or an injury to your body.
Only a qualified installer or qualified service person is allowed to carry out the electrical work of the
VRF Dx-coil interface.
Under no circumstances must this work be done by an unqualified individual since failure to carry out
the work properly may result in electric shocks and / or electrical leaks.
When the VRF Dx-coil interface is to be transported, installed, maintained, repaired or removed, wear
protective gloves and ‘safety’ work clothing.
To connect the electrical wires, repair the electrical parts or undertake other electrical jobs, wear gloves
to provide protection for electricians, insulating shoes and clothing to provide protection from electric
shocks. Failure to wear this protective gear may result in electric shocks.
Electrical wiring work shall be conducted according to law and regulation in the community and
installation manual. Failure to do so may result in electrocution or short circuit.
Use wiring that meets the specifications in the Installation Manual and the stipulations in the local
regulations and laws. Use of wiring which does not meet the specifications may give rise to electric
shocks, electrical leakage, smoking and/or a fire.
Only a qualified installer or qualified service person is allowed to undertake work at heights
using a stand of 20"(50 cm) or more.
When working at heights, use a ladder which complies with the ISO 14122 standard, and follow the
procedure in the ladder’s instructions.
Also wear a helmet for use in industry as protective gear to undertake the work.
Before working at heights, put a sign in place so that no-one will approach the work location,
before proceeding with the work. Parts and other objects may fall from above, possibly injuring a
person below. While carrying out the work, wear a helmet for protection from falling objects.
When executing address setting, test run, or troubleshooting on the electric parts box, put on insulated
gloves to provide protection from electric shock. Otherwise you may receive an electric shock.
Do not climb onto or place objects on top of the VRF Dx-coil interface.
You may fall or the objects may fall off of the VRF Dx-coil interface
and result in injury.
When transporting the VRF Dx-coil interface, wear shoes with protective toecaps, protective gloves
and other protective clothing.
When transporting the VRF Dx-coil interface, do not take hold of the bands around the packing carton.
You may injure yourself if the bands should break.
A weight, such as the compressor unit (more than 22Ibs(10 kg)), please make sure to carry two persons.
This VRF Dx-coil interface has passed the pressure test as specified in UL 60335-2-40 Annex EE.
Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main unit,
otherwise an electric shock is caused when a leak occurs. If the earth wire is not correctly connected,
contact an electric engineer for rework.
After completing the repair or relocation work, check that the ground wires are connected properly.
Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock.
Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for
telephone wires.
Check earth
wires.
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