2
1. Safety precautions
Before operating the unit, make sure you read all the “Safety
precautions”.
“Safety precautions” lists important points about safety.
Please be sure to follow them.
Symbols used in the text
Warning:
Describes precautions that should be observed to avoid the risk of injury or
death to the user.
Caution:
Describes precautions that should be observed to prevent damage to the unit.
Symbols used in the illustrations
:Indicates an action that must be avoided.
:Indicates that important instructions must be followed.
:Indicates a part which must be grounded.
:Indicates that caution should be taken with rotating parts. (This symbol is
displayed on the main unit label.) <Color: yellow>
:Beware of electric shock. (This symbol is displayed on the main unit label.)
<Color: yellow>
Warning:
Carefully read the labels affixed to the main unit.
1.1. Installation
After you have read this manual, keep it and the Installation Manual in a
safe place for easy reference whenever a question arises. If the unit is
going to be operated by another person, make sure that this manual is
given to him or her.
Warning:
• The unit should not be installed by the user. Ask the dealer or
an authorized company to install the unit. If the unit is installed
improperly, water leakage, electric shock or fire may result.
• Use only accessories authorized by Mitsubishi Electric and ask your
dealer or an authorized company to install them. If accessories are
installed improperly, water leakage, electric shock or fire may result.
• The Installation Manual details the suggested installation method. Any
structural alteration necessary for installation must comply with local
building code requirements.
• Never repair the unit or transfer it to another site by yourself. If repair
is performed improperly, water leakage, electric shock or fire may
result. If you need to have the unit repaired or moved, consult your
dealer.
• Keep the electric parts away from water (washing water) etc.
• It might result in electric shock, catching fire or smoke.
Note1: When washing the Heat Exchanger and Drain Pan, ensure the
Control Box, Motor and LEV remain dry, using a water proof
covering.
Note2: Never drain the washing water for the Drain Pan and the Heat
Exchanger using the Drain Pump. Drain separately.
• The appliance is not intended for use by young children or infirm
persons without supervision.
• Young children should be supervised to ensure that they do not play
with the appliance.
• Do not use a leak detection additive.
• Do not use refrigerant other than the type indicated in the manuals
provided with the unit and on the nameplate.
- Doing so may cause the unit or pipes to burst, or result in explosion or fire
during use, during repair, or at the time of disposal of the unit.
- It may also be in violation of applicable laws.
- MITSUBISHI ELECTRIC CORPORATION cannot be held responsible
for malfunctions or accidents resulting from the use of the wrong type of
refrigerant.
1) Outdoor unit
Warning:
• The outdoor unit must be installed on a stable, level surface, in a place
where there is no accumulation of snow, leaves or rubbish.
• Do not stand on, or place any items on the unit. You may fall down or
the item may fall, causing injury.
Caution:
The outdoor unit should be installed in a location where air and noise emit-
ted by the unit will not disturb the neighbors.
2) Indoor unit
Warning:
The indoor unit should be securely installed. If the unit is loosely mounted,
it may fall, causing injury.
3) Remote controller
Warning:
The remote controller should be installed in such a way that children can-
not play with it.
4) Drain hose
Caution:
Make sure that the drain hose is installed so that drainage goes away from
the unit. Incorrect installation may result in water leakage, causing damage
to furniture.
5) Power line, fuse or circuit breaker
Warning:
• Make sure that the unit is powered by a dedicated supply. Other
appliances connected to the same supply could cause an overload.
• Make sure that there is a main power switch.
• Be sure to adhere to the unit’s voltage and fuse or circuit breaker
ratings. Never use a piece of wire or a fuse with a higher rating than the
one specified.
6) Grounding
Caution:
• The unit must be properly grounded. Never connect the grounding wire
to a gas pipe, water pipe, lightning conductor or tele phone grounding
wire. If the unit is not grounded properly, electric shock may result.
• Check frequently that the ground wire from the outdoor unit is properly
connected to both the unit’s ground terminal and the grounding
electrode.
Contents
Note:
If you use other remote controllers, refer to either Installation Manual or Initial Setting Manual that comes with the controller to be used.
Contents .............................................................................................................2
1. Safety precautions ........................................................................................2
1.1. Installation ...................................................................................2
1.2. During operation .........................................................................3
1.3. Disposing of the unit ...................................................................3
2. Names and functions of various parts ..........................................................4
3. How to operate .............................................................................................6
3.1. ON/OFF ......................................................................................6
3.2. Mode Selection ...........................................................................6
3.3. Temperature Setting ...................................................................8
3.4. Fan speed adjustment ................................................................9
4. The smart way to use ...................................................................................9
5. Caring for the machine ...............................................................................10
6. Troubleshooting .......................................................................................... 11
7. Installation, transferring works, and checking ............................................12
8. Specifications
.............................................................................................13
