4
FOR INSTALLATION
WARNING
Make sure to connect wires thoroughly and fix them firmly so that no outer pressure of the wires would put on the terminal
block.
X
If the terminal is loose, it may generate heat and cause a fire.
Supplied power should be more or less than 2% of the rated power.
X
If the power is supplied unevenly, a life span of the storage battery shortens. If the supplied power is more than 4 % of the rated power,
the unit terminates and indicates errors to protect it.
Make sure the interior power supply shouldn’t be over the maximum voltage or under the minimum voltage.
X
Otherwise, it could result in malfunction of the unit due to damaged electrical components or decreased function of components.
Only use copper wire as the power cable and all wiring, components and materials should comply with the applicable local and
national codes.
Make sure that all wiring is properly installed.
X
Otherwise, the unit can be heated and cause a fire.
Never use the pipe and flare parts for R-22 refrigerant.
In case of a refrigerant gas leakage during installation, please ventilate the area.
X
If refrigerant gas combines with inflammable materials, toxic gases can be generated.
The electric work must be done by service agent or qualified persons according to national wiring regulations and use only rated
cable.
X
Voltage drop, shortage of power supply, improper electric work and using unapproved wires can cause an electric shock or a fire.
FOR INSTALLATION
CAUTION
Make sure to earth.
X
Do not connect the earth wire to the gas pipe, lighting rod or telephone wire.
X
If earthing is incomplete, electric shock or fire may occur.
Make sure that the condensed water from the drain hose runs out properly based on this installation manual and insulate the
drain pipe so that frost does not generate.
X
If the draining work is done incompletely, property damage may occur due to a leakage.
Install the power cable and communication cable of MCU at least 1m away from the electric appliances and at least 2m away
from the lightning rod.
X
However, you may hear a noise 1 meter away from the unit depending on the condition of the electric wave.
Install MCU away from lighting apparatus using the ballast.
X
If you use the wireless remote control, it may not operate normally.
Do not install the unit in following places.
X
The place packed with mineral oil and the place where there are lots of moisture, or arsenic acid:
The resin parts may burn and cause the fall of the components or a refrigerant leakage.
X
The place where corrosive gas such as sulfurous acid gas generates from the vent pipe or air outlet:
The copper pipe or connection pipe may corrode and refrigerant may leak.
X
The place where there is a machine that generates electromagnetic waves:
The unit may not operate normally due to malfunction in the control system.
X
The place where there is a possibility of combustible gas leakage, and where inflammable materials like thinner or gasoline is
handled. The place where a carbon fiber or inflammable dust is floating in the air:
If the gas leaks and stays around the main valve, it may result in a fire.
X
The places where have a possibility of the MCU corrosion like a spa and a shore.
When there is a possibility that the place in which MCU is installed could be the shelter of small animals, take proper measures to
prevent this situation in advance.
X
If small animals contact the unit, this may result in malfunction of the unit or cause a fire and smoke. Please remind users of cleaning the
place around MCU.
K
Any claims caused by failing to keep the safety precautions are installer’s responsibility.
(The installer is responsible for the service cost.)
Safety precautions
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