Mitsubishi Electronics 20-L, 20 PRH-5, 8, 10, 15 manual Safety for USE, For correct installation

SAFETY FOR USE

Before conducting installation work, please read this ''SAFETY FOR USE'' carefully

for correct installation.

Since the caution items shown here contain important description relative to safety, please observe them without fail.

Warning	Erroneous handling gives a high possibility to induce serious results such as
	death or heavy injury.
Caution	Erroneous handling may induce serious injury depending on the situation.

After reading, please keep it with you together the Instruction Manual, and read it again at the movement of the unit.

Warning

The unit should not be installed by the user.

If the unit is installed improperly, explosion, water leakage, electric shock or fire may be result. Consult your dealer or specialist subcontractor for repair and movement.

For installation, conduct the work correctly by following the Installation Manual.

Improper installation may cause a fire, electrical shock or water leakage.

Install the unit on a spot sufficiently durable against the unit weight.

Insufficient durability can cause an injury by the falling down of unit.

All electric work must be performed by licensed technician, according to local regulations and the instructions given in this manual.

The units should be powered by dedicated power lines. Power lines with insufficient capacity or improper electrical work may result in electric shock or fire.

Use only the specified cables for wiring.

The connections must be made secured without tension the terminals.

Improper connection or fastening can cause a fire or electrical shock.

The unit should be installed according to the instructions in order to minimize the risk of damage from earthquakes, typhoons or strong winds. Improper installation work can cause an injury by the falling down of the unit.

The unit must be installed on stable, flat surface, in a place where there is no accumulation of snow, leaves or rubbish.

The unit should be installed in a location where air and noise emitted by the unit will not disturb the neighbors.

If the unit is loosely mounted, it may fall, and cause injury.

Never repair the unit, remodel or transfer it to another site by yourself.

If they are performed improperly, water leakage, electric shock or fire may result. If you need to have the unit repaired or moved, consult your dealer.

Use only the specified refrigerant (R-22) to charge the refrigerant circuit.

Do not mix it with any other refrigerant and do not allow air to remain in the circuit.

Air enclosed in the circuit can cause high pressure resulting in a rupture and other hazards.

After completing installation work, make sure that refrigerant gas has not leaked.

If refrigerant gas has leaked and exposed to fan heater, stove, oven and so on, it may generate noxious gases.

Take a proper measure to suppress the critical concentration of refrigerant if leaked when installing the unit in a small room.

The limit density is made not to be exceeded even if the refrigerant leaks by any chance.

You are necessary to ventilation measures to prevent the accident. If the refrigerant leaks, hypoxia accident may caused.

For the countermeasure to be taken, consult your dealer.

The terminal block cover of unit must be firmly attached to prevent entry of dust and moisture. Improper mounting of the cover cause electric shock or fire.

Use only optional parts authorised by Mitsubishi Electric.

If the accessories are installed improperly, water leakage, electric shock or fire may result.

Ask your dealer or an authorised company to install them.

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