Tabla De Contenido; Safety Precautions - Mitsubishi Electric Mr.SLIM PLA-A12EA7 Manual De Instalación

Contents
1. Safety precautions .....................................................................................2
2. Installation location ....................................................................................3
3. Installing the indoor unit ............................................................................3
4. Installing the refrigerant piping .................................................................. 5
5. Drainage piping work .................................................................................6
Note:
The phrase "Wired remote controller" in this installation manual refers only to the PAR-32MAA.
If you need any information for the other remote controller, please refer to either the installation manual or initial setting manual which are included in those
boxes.

1. Safety precautions

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Before installing the unit, make sure you read all the "Safety precautions".
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Please report to your supply authority or obtain their consent before
connecting this equipment to the power supply system.
Warning:
Describes precautions that must be observed to prevent danger of injury or
death to the user.
Caution:
Describes precautions that must be observed to prevent damage to the unit.
Warning:
• Ask a dealer or an authorized technician to install the unit.
• The user should never attempt to repair the unit or transfer it to another location.
• 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 unit must be installed according to the instructions in order to minimize
the risk of damage from earthquakes, typhoons, or strong winds. An incorrectly
installed unit may fall down and cause damage or injuries.
• The unit must be securely installed on a structure that can sustain its weight.
• If the air conditioner is installed in a small room, measures must be taken to
prevent the refrigerant concentration in the room from exceeding the safety limit
in the event of refrigerant leakage. Should the refrigerant leak and cause 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 splice
the cables for wiring (unless otherwise indicated in this document).
Failure to observe these instructions may result in overheating or a fire.
1.1. Before installation (Environment)
Caution:
• Do not use the unit in an unusual environment. If the air conditioner is installed
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 explosion
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.
1.2. Before installation or relocation
Caution:
• Be extremely careful when transporting the units. Two or more persons are
needed to handle the unit, as it weighs 20 kg, 44 lbs or more. Do not grasp the
packaging bands. Wear protective gloves as you can injure your hands on 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.
• Thermal insulation of the refrigerant pipe is necessary to prevent condensation.
If the refrigerant pipe is not properly insulated, condensation will be formed.
• Place thermal insulation on the pipes to prevent condensation. If the drainpipe
is installed incorrectly, water leakage and damage to the ceiling, floor, furniture,
or other possessions may result.
1.3. Before electric work
Caution:
• Be sure to install circuit breakers. If not installed, electric shock may result.
• For the power lines, use standard cables of sufficient capacity. Otherwise, a
short circuit, overheating, or fire may result.
• When installing the power lines, do not apply tension to the cables.
1.4. Before starting the test run
Caution:
• Turn on the main power switch more than 12 hours before starting operation.
Starting operation just after turning on the power switch can severely damage
the internal parts.
• Before starting operation, check that all panels, guards and other protective parts
are correctly installed. Rotating, hot, or high voltage parts can cause injuries.
2
6. Electrical work ...........................................................................................7
7. Test run ....................................................................................................12
8. System control ........................................................................................15
9. Installing the grille ....................................................................................16
10. Easy maintenance function .....................................................................18
After installation work has been completed, explain the "Safety Precautions," use, and
maintenance of the unit to the customer according to the information in the Operation
Manual and perform the test run to ensure normal operation. Both the Installation
Manual and Operation Manual must be given to the user for keeping. These manuals
must be passed on to subsequent users.
: Indicates a part which must be grounded.
Warning:
Carefully read the labels affixed to the main unit.
• The appliance shall be installed in accordance with national wiring regulations.
• This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety.
• Children should be supervised to ensure that they do not play with the appliance.
• The terminal block cover panel of the unit must be firmly attached.
• If the supply cord is damaged, it must be replaced by the manufacturer, its
service agent or similarly qualified persons in order to avoid a hazard.
• Use only accessories authorized by Mitsubishi Electric and ask a dealer or an
authorized technician to install them.
• After installation has been completed, check for refrigerant leaks. If refrigerant
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
specified refrigerant (R410A) to charge the refrigerant lines. Do not mix it with
any other refrigerant and do not allow air to remain in the lines.
I f air is mixed with the refrigerant, then it can be the cause of abnormal high
pressure in the refrigerant line, and may result in an explosion and other hazards.
T he use of any refrigerant other than that specified for the system will cause
mechanical failure or system malfunction or unit breakdown. In the worst case,
this could lead to a serious impediment to securing product safety.
• When the room humidity exceeds 80% or when the drainpipe is clogged, water
may drip from the indoor unit. Do not install the indoor unit where such dripping
can cause damage.
• When installing the unit in a hospital or communications office, be prepared for
noise and electronic interference. Inverters, home appliances, high-frequency
medical equipment, and radio communications equipment can cause the air
conditioner to malfunction or breakdown. The air conditioner may also affect
medical equipment, disturbing medical care, and communications equipment,
harming the screen display quality.
• Do not clean the air conditioner unit with water. Electric shock may result.
• Tighten all flare nuts to specification using a torque wrench. If tightened too
much, the flare nut can break after an extended period.
• If the unit is run for long hours when the air above the ceiling is at high tem-
perature/high humidity (dew point above 26 ºC, 79 ºF), dew condensation may
be produced in the indoor unit or the ceiling materials. When operating the units
in this condition, add insulation material (10-20 mm, 25/64-25/32 inch) to the
entire surface of the unit and ceiling materials to avoid dew condensation.
• Be sure to ground the unit. If the unit is not properly grounded, electric shock
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.
• 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.
• After stopping operation, be sure to wait at least five minutes before turning off
the main power switch. Otherwise, water leakage or breakdown may result.