Make sure to construct the drain piping
so that water is securely discharged.
If the piping construction is inadequate, water may
leak and wet household goods.
If the refrigerant leaks and the critical concentration is
exceeded, accidents may occur due to oxygen deficiency.
Moreover, if the refrigerant gets into contact with flames, for
instance from a fan heater, space heater, cooking stove, toxic
gases may be generated. If the refrigerant is found to be
leaking, extinguish any flames in the room and ventilate the
room.
Make sure to use accessories specified by Mitsubishi Heavy
Industries. Request a specialist to install them.
If you install the accessories by yourself and the accessories are not correctly
installed, water leakage, electric shock and/or fire may occur.
Install the air conditioning system
securely in a place that can stand the
weight of it.
If the installation is inadequate, the unit may
overturn or fall down, leading to injury.
Do not install the air conditioning system
in a place where there is any possibility
that combustible gas may leak.
If such gas leaks and accumulates around the unit,
the gas may catch fire.
Make sure to perform grounding work.
Do not connect the ground wire to a ground wire
connected to any gas pipes, water pipes, lightning
conductors or telephones. Incomplete grounding
may cause electric shock.
It is necessary to install a leakage
breaker.
If a leakage breaker is not installed, electric
shock may happen.
Construct the system in such a way as
to prevent parts from being overturned
in areas subjected to the effects of
strong wind.
Strong wind may overturn an outdoor unit,
leading to injury.
Make sure to request the dealer from whom you have pur-
chased the product or a specialist to install the product.
If you install the product by yourself and the product is not correctly installed,
water leakage, electric shock and/or fire may occur.
SAFETY PRECAUTIONS
CAUTION
Thank you very much for your purchase of this package air conditioning system made
by Mitsubishi Heavy Industries. Please read through this manual before using the prod-
uct and use the product appropriately according to the instructions in the manual. After
you have read the manual, store it with the warranty certificate in a safe place. It will
help you when you have questions or problems.
1
ENGLISH
TABLE OF CONTENTS
■
SAFETY PRECAUTIONS .................................................................................................................. 1
■
NAMES AND FUNCTIONS OF THE REMOTE CONTROLLER SWITCHES ................................... 3
■
HOW TO USE THE AIR CONDITIONING SYSTEM ......................................................................... 3
HOW TO OPERATE THE AIR CONDITIONING SYSTEM ............................................................... 3
HOW TO PERFORM THE TIMER OPERATION .............................................................................. 4
SELECTING TIMER MODES ......................................................................................................... 4
ADJUSTING THE TIME .................................................................................................................. 5
SLEEP TIMER MODE ..................................................................................................................... 5
OFF TIMER MODE ......................................................................................................................... 6
ON TIMER MODE ........................................................................................................................... 6
WEEKLY TIMER MODE ................................................................................................................. 7
TIMER CANCELLATION MODE .................................................................................................... 12
HOW TO OPERATE IN SILENT MODE ............................................................................................ 13
SILENT MODE ................................................................................................................................ 13
HOW TO ADJUST THE AIRFLOW DIRECTION ............................................................................... 14
AIRFLOW ADJUSTMENT BY THE LOUVER SWITCH (FOR INDOOR UNITS WITH THE AUTO SWING FUNCTION) ...... 14
VENTILATION MODE OPERATION (WHEN A VENTILATOR IS INSTALLED) .............................. 14
USING THE AIR CONDITIONING SYSTEM IN A COMFORTABLE MANNER ............................... 14
HOW TO MAINTAIN THE AIR CONDITIONING SYSTEM ............................................................... 15
■
TROUBLESHOOTING ....................................................................................................................... 16
ABOUT INSPECTION DISPLAY, FILTER MESSAGE DISPLAY, AIR CONDITIONING NUMBER AND OPERATION STANDBY DISPLAY ....... 17
WHEN THE CHECK INDICATOR LIGHT (RED) FLASHES .......................................................... 17
WHEN THE FILTER CLEANING MESSAGE IS DISPLAYED ....................................................... 17
HOW TO DISPLAY AIR CONDITIONING UNIT NO. ..................................................................... 17
ABOUT OPERATION STANDBY DISPLAY ................................................................................... 17
ABOUT PREPARATION OF HEATING ............................................................................................. 18
CASES WHEN “
” (PREPARATION OF HEATING) IS DISPLAYED ................... 18
ABOUT HEATING OPERATION .................................................................................................... 18
ABOUT POWER FAILURE COMPENSATION ................................................................................. 18
ABOUT SETTING TO DISABLE SWITCH OPERATION .................................................................. 18
ABOUT INSTALLATION, MOVING AND INSPECTION MAINTENANCE ........................................ 18
INSTALLATION LOCATION ........................................................................................................... 18
ELECTRICAL WORK ...................................................................................................................... 18
AT MOVING .................................................................................................................................... 18
ABOUT INSPECTION MAINTENANCE ......................................................................................... 18
OPERATION RANGE ..................................................................................................................... 18
●
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
” Potentially hazardous situations that may lead to
serious outcomes such as death and serious injuries if the product is mishandled, in particular, are grouped together and described in
the “
DANGER
” sections. 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 tell 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:
●
After you have read the manual, always store it at a place where other users of the system can refer to it at any time. If a new owner
takes over the system, make sure to pass this manual to that person.
❚
INSTALLATION PRECAUTIONS
DANGER
Strictly prohibited.
Observe instructions with
great care.
Provide positive earthing.
PCA012A001H_E_P01
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