Mitsubishi Electric PSA-RP140KA / PUHZ-P140VHA [2/24] Safety precautions

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Contents

1. Safety precautions .....................................................................................2

2. Installation location ....................................................................................3

3. Installing the indoor unit ............................................................................3

4. Installing the refrigerant piping ..................................................................4

5. Drainage piping work .................................................................................6

6. Electrical work ...........................................................................................7

7. Test run ....................................................................................................10

the fins or other parts.

• Be sure to safely dispose of the packaging materials. Packaging materials,

such as nails and other metal or wooden parts may cause stabs or other

injuries.

Warning:

• Ask a dealer or an authorized technician to install the unit.

• For installation work, follow the instructions in the Installation Manual and use

tools and pipe components specifically made for use with refrigerant specified

in the outdoor unit installation manual.

the concentration limit to be exceeded, hazards due to lack of oxygen in the

room may result.

• Ventilate the room if refrigerant leaks during operation. If refrigerant comes

into contact with a flame, poisonous gases will be released.

• All electric work must be performed by a qualified technician according to

local regulations and the instructions given in this manual.

• Use only specified cables for wiring. The wiring connections must be made

securely with no tension applied on the terminal connections. Also, never

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tion.

• After installation has been completed, check for refrigerant leaks. If refriger-

ant leaks into the room and comes into contact with the flame of a heater or

portable cooking range, poisonous gases will be released.

• When installing or relocating, or servicing the air conditioner, use only the

any other refrigerant and do not allow air to remain in the lines.

in areas exposed to steam, volatile oil (including machine oil), or sulfuric gas,

areas exposed to high salt content such as the seaside, the performance can

be significantly reduced and the internal parts can be damaged.

• Do not install the unit where combustible gases may leak, be produced, flow,

or accumulate. If combustible gas accumulates around the unit, fire or explo-

sion may result.

• Do not keep food, plants, caged pets, artwork, or precision instruments in the

direct airflow of the indoor unit or too close to the unit, as these items can be

damaged by temperature changes or dripping water.

conditioner to malfunction or breakdown. The air conditioner may also affect

harming the screen display quality.

If the refrigerant pipe is not properly insulated, condensation will be formed.

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furniture, or other possessions may result.

• Do not clean the air conditioner unit with water. Electric shock may result.

short circuit, overheating, or fire may result.

• When installing the power lines, do not apply tension to the cables.

may result.

• Use circuit breakers (ground fault interrupter, isolating switch (+B fuse), and

molded case circuit breaker) with the specified capacity. If the circuit breaker

capacity is larger than the specified capacity, breakdown or fire may result.

1. Safety precautions

1.4. Before starting the test run

Caution:

• Do not operate the air conditioner without the air filter set in place. If the air

filter is not installed, dust may accumulate and breakdown may result.

• Do not touch any switch with wet hands. Electric shock may result.

• Do not touch the refrigerant pipes with bare hands during operation.

the main power switch. Otherwise, water leakage or breakdown may result.

► Before installing the unit, make sure you read all the “Safety precau-

tions”.

► Please report to your supply authority or obtain their consent before

connecting this equipment to the power supply system.

must be passed on to subsequent users.

Carefully read the labels affixed to the main unit.