1
If the unit has been submerged under water due to a
natural disaster such as flood or typhoon, consult your
dealer before using it again.
If you use it as it stands, it may lead to failure, electric shock or fire.
If any abnormal symptom (scorched flavor etc.) is
found, cut off the power and stop the operation.
Then consult your dealer.
If you use it as it stands, it may lead to failure, electric shock or fire.
One of the causes of poor cooling or poor heating
may be refrigerant leakage. Please consult your dealer.
If the repair requires additional refrigerant, determine the service
with the service staff. The refrigerant of air conditioner is not toxic.
Normally the refrigerant does not leak. But if it leaks and contacts
fire such as fan heater, space heater or cooking heater, it may
produce toxic chemicals.
Do not insert fingers or sticks even if air blower does
not operate.
It may suddenly operate and cause injuries.
Thank you very much for your purchase of this packaged air conditioning system
produced by Mitsubishi Heavy Industries. Please read through this manual before
using the product and use the product appropriately according to the instructions in
the manual. After you have read the manual, store it with the warranty certifi cate in a
safe place. It will help you when you have questions or problems.
Do not vent R410A into the atmosphere: R410A is a fl uorinated greenhouse gas,
covered by the Kyoto Protocol with a Global Warming Potential (GWP) = 1975.
TABLE OF CONTENTS
SAFETY PRECAUTIONS ...................................................................................................................................................1
HOW TO USE
< WIRED REMOTE CONTROL >
NAMES AND FUNCTIONS OF REMOTE CONTROL BUTTONS
“WIRED REMOTE CONTROL” ...........................................................................................................................................2
HOW TO OPERATE ............................................................................................................................................................3
HOW TO PERFORM THE TIMER OPERATION .................................................................................................................3
THE SELECTION OF TIMER MODE ...............................................................................................................................3
SETTING THE TIME.........................................................................................................................................................4
SLEEP TIMER MODE ......................................................................................................................................................4
OFF TIMER MODE ...........................................................................................................................................................4
ON TIMER MODE ............................................................................................................................................................5
WEEKLY TIMER MODE ...................................................................................................................................................5
TIMER CANCELLATION MODE ......................................................................................................................................8
HOW TO OPERATE IN SILENT MODE ..............................................................................................................................8
HOW TO ADJUST THE LOUVER .......................................................................................................................................9
HOW TO SET THE AIRFLOW DIRECTION........................................................................................................................9
HOW TO OPERATE VENTILATION ..................................................................................................................................10
FOR COMFORTABLE USE ..............................................................................................................................................10
INSPECTION DISPLAY, FILTER SIGN, AIR CONDITIONER NUMBER, STANDBY AND ROOM TEMPERATURE
DISPLAY ...........................................................................................................................................................................11
< WIRELESS REMOTE CONTROL >
NAMES AND FUNCTIONS OF REMOTE CONTROL BUTTONS
WIRELESS REMOTE CONTROL .....................................................................................................................................11
HOW TO OPERATE ..........................................................................................................................................................12
CURRENT TIME SETTING PROCEDURE ......................................................................................................................12
ON – TIMER OPERATION ................................................................................................................................................12
OFF – TIMER OPERATION ..............................................................................................................................................12
PROGRAM TIMER OPERATION ......................................................................................................................................12
HOW TO ADJUST THE LOUVER ....................................................................................................................................13
FOR COMFORTABLE USE ..............................................................................................................................................13
CHECK INDICATION, FILTER SIGN ................................................................................................................................13
BACKUP BUTTON ............................................................................................................................................................14
FOR SMART USE
HOW TO MAINTAIN ..........................................................................................................................................................14
TROUBLE SHOOTING .....................................................................................................................................................15
NOTICE
PREPARATION OF HEATING ..........................................................................................................................................16
AUTO RESTART ...............................................................................................................................................................16
SETTING TO DISABLE BUTTON OPERATION ...............................................................................................................16
INSTALLATION, RELOCATION, AND INSPECTION MAINTENANCE.............................................................................16
OPERATION RANGE .......................................................................................................................................................16
Make sure to have the installation done by your dealer
or a specialist.
If you install by yourself and the unit is not properly installed,
water leakage, electric shock, fire and injuries caused by the drop
of the unit may occur.
The preventive measures that the density of leaked
refrigerant does not exceed the limit is necessary in
case of installing the unit in a small room.
The leakage of refrigerant may cause oxygen deficiency accident.
Consult your dealer for the measures.
SAFETY PRECAUTIONS
Please read these “SAFETY PRECAUTIONS” before
starting to use this product and use the product
appropriately according to the instructions.
The precautions provided here are classified into “
DANGER” and “
CAUTION”. The “ DANGER” sections
describe potentially hazardous situations that may lead to
serious outcomes such as death and sericus injuries if the
product is mishandled. Note, however, that depending on the
situation, the items listed in the “
CAUTION” sections do
also have the potential of causing serious outcomes. Both
warnings and cautions provide you important information
related to safety ; please make sure to observe them.
The symbols used throughout the main text of this
manual have the following meaning.
marks mean danger, alarm, and caution. The
specified prohibited item is described in the
triangle. The left mark means “Shock hazard alarm”.
{
marks mean prohibited items. The specified
prohibited item is described in the circle or in the
vicinage.
z
marks mean compulsory action or instruction.
The specified prohibited item is described in the
circle. The left mark means “Earth is needed”.
After you have read the manual, always store it where
other users can refer to at any time. If a new owner takes
over the system, make sure to pass this manual.
CAUTION
Do not use for particular purpose such as the storage
of food, animals and plants, precision apparatus and
arts etc.
Storage goods may degrade.
Do not operate the button with wet hand.
It may cause electric shock.
When a burning appliance is used together with the
unit, ventilate frequently.
If ventilation is not sufficient, it may cause oxygen deficiency
accident.
Do not place a burning appliance where the airflow from
the unit is directly blown.
It may cause the imperfect combustion of the equipment.
Make sure that the unit installation foundation is not
damaged due to long-term use.
If it is left to stand, the unit may fall down causing injury.
Do not wash the unit with water, nor place a vase with
water on the unit.
It may cause electric shock or ignition.
Do not install the unit where the airflow is directly
blown to animals and plants.
They may suffer from adverse effect.
Before cleaning, make sure to stop operation and
cut off the power.
The fan inside rotates at high speeds.
Make sure to use proper size of fuse.
Using steel wire or copper wire may lead to failure or fire.
Do not store a flammable spray etc. near the unit, nor
blow directly to the unit.
It may lead to fire.
Before maintenance, make sure to stop operation and
cut off the power.
The fan inside rotates at high speeds.
When the unit isn’t used for a long-term, cut off the
power.
The accumulation of dirt may lead to heat generation or fire.
But, before resuming the operation, turn on the unit for six hours
beforehand to save harmless.
Do not place any other electric appliances or household
goods below or around the air conditioner.
Dripping from the unit may lead to failure or contamination.
DANGER
INSTALLATION PRECAUTIONS
Make sure to perform grounding work.
Do not connect grounding wire to any gas pipe, water pipe,
conductor rods or telephones. Incomplete grounding may
cause electric shock through leakage of electricity.
Make sure to mount a leakage breaker.
Otherwise electric shock may occur. Please consult your
dealer or a specialist for the mounting.
Do not mount where flammable gas leakage can
happen.
If leaked gas stagnates in the unit, the gas may cause
fire.
Make sure to layout the drain pipe so that the water is
completely drained.
Otherwise, water may leak and wet household goods.
CAUTION
ENGLISH
Do not expose yourself directly to cooled air flow for a long
time or cool too much.
It may be cause of deconditioning or health disorder.
Do not insert fingers or sticks into the air inlet or outlet
grilles.
It may cause injuries because of the fan rotating at high
speed.
DANGER
OPERATION PRECAUTIONS
The emission sound pressure level from each Indoor and Outdoor unit is under
70 dB(A).
