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Contents
1. Safety precautions ......................................................................................... 1
2. Selecting the installation location ................................................................... 2
3. Installation diagram ........................................................................................ 3
4. Installing the indoor unit ................................................................................. 3
5. Refrigerant piping work .................................................................................. 5
6. Drainage piping work ..................................................................................... 7
Note:
The phrase "Wired remote controller" in this installation manual refers only to the TAR-41MAA. 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 these boxes.
1. Safety precautions
► Before installing the unit, make sure you read all the "Safety Precautions".
► The "Safety Precautions" provide very important points regarding safety. Make sure you follow them.
► Please report to your supply authority or obtain their consent before connecting this equipment to the power supply system.
Symbols used in the text
Warning:
Describes precautions that should be observed to prevent danger of injury or
death to the user.
Caution:
Describes precautions that should be observed to prevent damage to the
unit.
Warning:
• Carefully read the labels affi xed to the main unit.
• Ask a dealer or an authorized technician to install, relocate and repair the
unit.
• The user should never attempt to repair the unit or transfer it to another
location.
• Do not alter the unit. It may cause fi re, electric shock, injury or water leakage.
• For installation and relocation work, follow the instructions in the Installation
Manual and use tools and pipe components specifi cally made for use with
refrigerant specifi ed 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.
• The appliance shall be stored in a well-ventilated area where the room size
corresponds to the room area as specifi ed for operation.
• If the air conditioner is installed in a small room or closed 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.
• Keep gas-burning appliances, electric heaters, and other fi re sources (ignition
sources) away from the location where installation, repair, and other air con-
ditioner work will be performed. If refrigerant comes into contact with a fl ame,
poisonous gases will be released.
• Ventilate the room if refrigerant leaks during operation. If refrigerant comes
into contact with a fl ame, poisonous gases will be released.
• All electric work must be performed by a qualifi ed technician according to
local regulations and the instructions given in this manual.
• Use only specifi ed 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 fi re.
• Do not use intermediate connection of the electric wires.
• When installing or relocating, or servicing the air conditioner, use only the
specifi ed refrigerant written on outdoor unit to charge the refrigerant lines.
Do not mix it with any other refrigerant and do not allow air to remain in the
lines.
If 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.
The use of any refrigerant other than that specifi ed 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.
1
7. Electrical work ................................................................................................ 8
8. Test run ........................................................................................................ 16
9. System control ............................................................................................. 18
10. Installing the grille ........................................................................................ 18
11. Easy maintenance function .......................................................................... 21
Symbols used in the illustrations
: Indicates a part which must be grounded.
: Be sure not to do.
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.
• 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 electrical box cover panel of the unit must be fi rmly attached.
• If the supply cord is damaged, it must be replaced by the manufacturer, its
service agent or similarly qualifi ed 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 fl ame of a heater or
portable cooking range, poisonous gases will be released.
• Do not use means to accelerate the defrosting process or to clean, other than
those recommended by the manufacturer.
• The appliance shall be stored in a room without continuously operating
ignition sources (for example: open fl ames, an operating gas appliance or
an operating electric heater).
• Do not pierce or burn.
• Be aware that refrigerants may not contain an odour.
• Pipe-work shall be protected from physical damage.
• The installation of pipe-work shall be kept to a minimum.
• Compliance with national gas regulations shall be observed.
• Keep any required ventilation openings clear of obstruction.
• Do not use low temperature solder alloy in case of brazing the refrigerant
pipes.
• When performing brazing work, be sure to ventilate the room suffi ciently.
Make sure that there are no hazardous or fl ammable materials nearby.
• When performing the work in a closed room, small room, or similar location,
make sure that there are no refrigerant leaks before performing the work.
If refrigerant leaks and accumulates, it may ignite or poisonous gases may
be released.
• Exercise caution when using any auxiliary heat source and follow all third
party manufacturer instructions and safety guidelines for installation and
usage.
Any auxiliary heat source connected to this unit via the CN24 connection must
have an independent temperature control mechanism. Failure to install and
maintain such temperature control mechanism may void the warranty for this
unit.
Mitsubishi Electric shall not bear any warranty obligation or other liability any
damage or loss in connection with such third party auxiliary heaters.
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