MITSUBISHI ELECTRIC MSY-GY90VFD Split Type Air Conditioners Instruction Manual
- May 15, 2024
- Mitsubishi Electric
Table of Contents
MSY-GY90VFD Split Type Air Conditioners
“`html
Product Information
Specifications
- Product: Split-Type Air Conditioners
- Model: MSY-GY90VFD
- Language: English
Product Usage Instructions
Safety Precautions
Before operating the air conditioner, it is crucial to follow
these safety precautions:
-
Read the operating instructions carefully.
-
Service personnel must read the operating instructions and
installation manual before operation. -
Avoid incorrect handling to prevent serious hazards like fire,
electric shock, or system malfunction. -
Ensure children are supervised to prevent any misuse of the
appliance.
Name of Each Part
The manual provides details on the identification of various
parts of the indoor unit for your reference.
Preparation Before Operation
Prior to operating the air conditioner, ensure that the indoor
unit is clean and filters are free from dirt. Check that the
horizontal vanes are in the closed position to avoid any issues
during operation.
Selecting Operation Modes
Follow the instructions to select different operation modes
based on your cooling needs.
Fan Speed and Airflow Direction Adjustment
You can adjust the fan speed and airflow direction according to
your comfort preferences. Refer to the manual for detailed
instructions.
Cleaning
Regular cleaning of air filters is essential to prevent
condensation and mold growth. It is recommended to clean the
filters every two weeks.
FAQ
Q: How often should I clean the air filters?
A: It is recommended to clean the air filters every two weeks to
maintain optimal performance and prevent mold growth.
“`
SPLI T-T Y PE AI R CON DI T I ON ERS
INDOOR UNIT MSY-GY90VFD
OPERATING INSTRUCTIONS
For user
· To use this unit correctly and safely, be sure to read these operating instructions before use.
English
OPERATING INSTRUCTIONS
CONTENTS
SAFETY PRECAUTIONS
1
NAME OF EACH PART
4
PREPARATION BEFORE OPERATION
5
SELECTING OPERATION MODES
6
FAN SPEED AND AIRFLOW DIRECTION ADJUSTMENT
7
LONG OPERATION
8
POWERFUL OPERATION
8
I-SAVE OPERATION
8
ECONO COOL OPERATION
9
TIMER OPERATION (ON/OFF TIMER)
9
EMERGENCY OPERATION
9
AUTO RESTART FUNCTION
9
WEEKLY TIMER OPERATION
10
DEMAND RESPONSE AND INDOOR UNIT OPERATION
11
CLEANING
12
WHEN YOU THINK THAT TROUBLE HAS OCCURRED
13
WHEN THE AIR CONDITIONER IS NOT GOING TO BE USED FOR A LONG TIME
14
INSTALLATION PLACE AND ELECTRICAL WORK
14
SPECIFICATIONS
14
SAFETY PRECAUTIONS
Meanings of symbols displayed on indoor unit and/or outdoor unit
WARNING
(Risk of fire)
This unit uses a flammable refrigerant. If refrigerant leaks and comes in contact with fire or heating part, it will create harmful gas and there is risk of fire.
Read the OPERATING INSTRUCTIONS carefully before operation.
Service personnel are required to carefully read the OPERATING INSTRUCTIONS and INSTALLATION MANUAL before operation.
Further information is available in the OPERATING INSTRUCTIONS, INSTALLATION MANUAL, and the like.
· Since rotating parts and parts which could cause an electric shock are used
in this product, be sure to read these “Safety Precautions” before use.
· Since the cautionary items shown here are important for safety, be sure to
observe them.
· After reading this manual, keep it together with the installation manual in
a handy place for easy reference.
· Be sure to receive a guarantee card from your dealer and check that the purchased date and shop name, etc. are entered correctly.
Marks and their meanings
WARNING : CAUTION :
Incorrect handling could cause serious hazard, such as death, serious injury,
etc. with a high probability.
Incorrect handling could cause serious hazard depending on the conditions.
Meanings of symbols used in this manual
: Be sure not to do.
: Be sure to follow the instruction. : Never insert your finger or stick, etc.
: Never step onto the indoor/outdoor unit and do not put anything on
them. : Danger of electric shock. Be careful. : Be sure to disconnect the
power supply plug from the power outlet.
: Be sure to shut off the power.
: Risk of fire.
En-1
WARNING
Do not connect the power cord to an intermediate point, use an extension cord,
or connect multiple devices to a single AC outlet. · This may cause
overheating, fire, or electric shock.
Make sure the power plug is free of dirt and insert it securely into the
outlet. · A dirty plug may cause fire or electric shock.
Do not bundle, pull, damage, or modify the power cord, and do not apply heat
or place heavy objects on it. · This may cause fire or electric shock.
Do not turn the breaker OFF/ON or disconnect/connect the power plug during
operation. · This may create sparks, which can cause fire. · After the indoor
unit is switched OFF with the remote controller, make
sure to turn the breaker OFF or disconnect the power plug.
Do not expose your body directly to cool air for a prolonged length of time. ·
This could be detrimental to your health.
SAFETY PRECAUTIONS
The unit should not be installed, relocated, disassembled, altered, or
repaired by the user. · An improperly handled air conditioner may cause fire,
electric shock,
injury, or water leakage, etc. Consult your dealer. · If the power supply cord
is damaged, it must be replaced by the manu-
facturer or its service agent in order to avoid a hazard.
When installing, relocating, or servicing the unit, make sure that no
substance other than the specified refrigerant (R32) enters the refrigerant
circuit. · Any presence of foreign substance such as air can cause abnormal
pressure rise and may result in explosion or injury. · The use of any
refrigerant other than that specified for the system will
cause mechanical failure, system malfunction, or unit breakdown. In the worst
case, this could lead to a serious impediment to securing product safety.
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.
Do not insert your finger, a stick, or other objects into the air inlet or
outlet. · This may cause injury, since the fan inside rotates at high speeds
during
operation.
In case of an abnormal condition (such as a burning smell), stop the air
conditioner and disconnect the power plug or turn the breaker OFF. · A
continued operation in the abnormal state may cause a malfunction,
fire, or electric shock. In this case, consult your dealer.
When the air conditioner does not cool or heat, there is a possibility of
refrigerant leakage. If any refrigerant leakage is found, stop operations and
ventilate the room well and consult your dealer immediately. If a repair
involves recharging the unit with refrigerant, ask the service technician for
details. · The refrigerant used in the air conditioner is not harmful.
Normally, it
does not leak. However, if refrigerant leaks and comes in contact with fire or
heating part of such a fan heater, kerosene heater, or cooking stove, it will
create harmful gas and there is risk of fire.
The user should never attempt to wash the inside of the indoor unit. Should
the inside of the unit require cleaning, contact your dealer. · Unsuitable
detergent may cause damage to plastic material inside
the unit, which may result in water leakage. Should detergent come in contact
with electrical parts or the motor, it will result in a malfunction, smoke, or
fire. · The appliance shall be stored in a room without continuously operating
ignition sources (for example: open flames, an operating gas appliance or an
operating electric heater). · Be aware that refrigerants may not contain an
odour. · Do not use means to accelerate the defrosting process or to clean the
appliance, other than those recommended by the manufacturer. · Do not pierce
or burn.
The indoor unit must be installed in rooms which exceed the floor space
specified. Please consult your dealer.
This appliance is intended to be used by expert or trained users in shops, in
light industry and on farms, or for commercial use by lay persons.
CAUTION
Do not touch the air inlet or the aluminum fins of the indoor/outdoor unit. ·
This may cause injury.
Do not use insecticides, flammable sprays, air refreshers, or antibacterial
agents on the unit. · This may cause a fire or deformation of the unit.
Do not expose pets or houseplants to direct airflow. · This may cause injury
to the pets or plants.
Do not place other electric appliances or furniture under the indoor/ outdoor
unit. · Water may drip down from the unit, which may cause damage or
malfunction.
Do not leave the unit on a damaged installation stand. · The unit may fall and
cause injury.
Do not step on an unstable bench to operate or clean the unit. · This may
cause injury if you fall down.
Do not pull the power cord. · This may cause a portion of the core wire to
break, which may cause
overheating or fire.
Do not charge or disassemble the batteries, and do not throw them into a fire.
· This may cause the batteries to leak, or cause a fire or explosion.
Do not operate the unit for more than 4 hours at high humidity (80% RH or
more) and/or with windows or outside door left open. · This may cause the
water condensation in the air conditioner, which
may drip down, wetting or damaging the furniture. · The water condensation in
the air conditioner may contribute to growth
of fungi, such as mold. Do not use the unit for special purposes, such as
storing food, raising animals, growing plants, or preserving precision devices
or art objects. · This may cause deterioration of quality, or harm to animals
and plants. Do not expose combustion appliances to direct airflow. · This may
cause incomplete combustion. Never put batteries in your mouth for any reason
to avoid accidental ingestion. · Battery ingestion may cause choking and/or
poisoning. Before cleaning the unit, switch it OFF and disconnect the power
plug or turn the breaker OFF. · This may cause injury, since the fan inside
rotates at high speeds during
operation. When the unit will be unused for a long time, disconnect the power
plug or turn the breaker OFF. · The unit may accumulate dirt, which may cause
overheating or fire. Replace all batteries of the remote controller with new
ones of the same type. · Using an old battery together with a new one may
cause overheating,
leakage, or explosion. If the battery fluid comes in contact with your skin or
clothes, wash them thoroughly with clean water. · If the battery fluid comes
in contact with your eyes, wash them thoroughly
with clean water and immediately seek medical attention. Ensure that the area
is well-ventilated when the unit is operated together with a combustion
appliance. · Inadequate ventilation may cause oxygen starvation. Do not
operate the air conditioner after applying protecting agent on the floor. ·
Components in the protecting agent may attach the inside of the indoor
unit, resulting in water leakage or splattering of dew. Turn the breaker OFF
when you hear thunder and there is a possibility of a lightning strike. · The
unit may be damaged if lightning strikes. After the air conditioner is used
for several seasons, perform inspection and maintenance in addition to normal
cleaning. · Dirt or dust in the unit may create an unpleasant odor, contribute
to
growth of fungi, such as mold, or clog the drain passage, and cause water to
leak from the indoor unit. Consult your dealer for inspection and maintenance,
which require specialized knowledge and skills. Do not operate switches with
wet hands. · This may cause electric shock. Do not clean the air conditioner
with water or place an object that contains water, such as a flower vase, on
it. · This may cause fire or electric shock. Do not step on or place any
object on the outdoor unit. · This may cause injury if you or the object falls
down.
IMPORTANT
Dirty filters cause condensation in the air conditioner which will contribute
to the growth of fungi such as mold. It is therefore recommended to clean air
filters every 2 weeks. Before starting the operation, ensure that the
horizontal vanes are in the closed position. If operation starts when the
horizontal vanes are in the open position, they may not return to the correct
position.
En-2
OPERATING INSTRUCTIONS
SAFETY PRECAUTIONS
For installation WARNING
Consult your dealer for installing the air conditioner. · It should not be
installed by the user since installation requires specialized
knowledge and skills. An improperly installed air conditioner may cause water
leakage, fire, or electric shock. Provide a dedicated power supply for the air
conditioner. · A non-dedicated power supply may cause overheating or fire. Do
not install the unit where flammable gas could leak. · If gas leaks and
accumulates around the outdoor unit, it may cause an explosion. Earth the unit
correctly. · Do not connect the earth wire to a gas pipe, water pipe,
lightning rod, or a telephone earth wire. Improper earthing may cause electric
shock.
CAUTION
Install an earth leakage breaker depending on the installation location of the
air conditioner (such as highly humid areas). · If an earth leakage breaker is
not installed, it may cause electric shock. Ensure that the drain water is
properly drained. · If the drain passage is improper, water may drip down from
the indoor/
outdoor unit, wetting and damaging the furniture. In case of an abnormal
condition
Immediately stop operating the air conditioner and consult your dealer.
En-3
NAME OF EACH PART
Indoor unit
Air cleaning filter (Anti-Allergy Enzyme Filter, option)
Air filter (Nano platinum filter)
Air inlet
Air outlet Horizontal vane
Fan guard
Front panel
Remote controller
Emergency operation switch Page 10
Operation indicator lamp Remote control receiving section
Operation display section
Temperature buttons Page 6 Operation select button Page 6 ECONO COOL button
Page 9 POWERFUL button Page 8
i-save button Page 8
Signal transmitting section Distance of signal : About 6 m Beep(s) is (are)
heard from the indoor unit when the signal is received.
Battery replacement indicator Page 5
OFF/ON (stop/operate) button
LONG button Page 8
WIDE VANE control button Page 7
FAN speed control button Page 7 VANE control button Page 7
TIME, TIMER set buttons Page 5, 9 Increase time Decrease time
TIME, WEEKLY TIMER set buttons Page 5, 10
Outdoor unit
Air inlet (back and side)
Refrigerant piping
Drainage hose Air outlet Drain outlet Outdoor units may be different in
appearance.
RESET button Page 5
CLOCK button Page 5
Lid Slide the lid down to open the remote controller. Slide it down further to
get to the weekly timer buttons.
Remote controller holder
· Install the remote controller holder in a place where the signal can be
received by the indoor unit.
· When the remote controller is not used, place it in this holder.
Only use the remote controller provided with the unit. Do not use other remote controllers. If 2 or more indoor units are installed in proximity to one another, an indoor unit that is not intended to be operated may respond to the remote controller.
En-4
OPERATING INSTRUCTIONS
PREPARATION BEFORE OPERATION
Before operation: Insert the power supply plug into the power outlet and/or
turn the breaker on.
Installing the remote controller batteries 4. Press RESET.
1. Remove the front lid.
Setting current time 1. Press CLOCK.
3. Press the DAY button
to set the day.
2. Insert the negative
pole of AAA alkaline batteries first.
3. Install the front lid.
Note:
· Make sure the polarity of the batteries is correct. · Do not use manganese
batteries and leaking batteries. The remote controller
could malfunction. · Do not use rechargeable batteries. · The battery
replacement indicator lights up when the battery is running low.
In about 7 days after the indicator starts lights up, the remote controller
stops working. · Replace all batteries with new ones of the same type. ·
Batteries can be used for approximately 1 year. However, batteries with
expired shelf lives last shorter. · Press RESET gently using a thin
instrument. If the RESET button is not pressed, the remote controller may not
operate correctly.
4. Press CLOCK again.
2. Press either the TIME button
or the TIMER buttons to set
the time.
Each press changes the clock 1 minute forward/backward (10 minutes when
pressed longer).
Note:
· Press CLOCK gently using a thin instrument.
Note:
How to set remote controller exclusively for a particular indoor unit
A maximum of 4 indoor units with wireless remote controllers can be used in
a room.
To operate the indoor units individually with each remote controller, assign a
number to each remote controller according to the number of the indoor unit.
This setting can be set only when all the following conditions are met:
· The remote controller is powered OFF.
(1) Hold down
button on the remote controller for 2 seconds to enter the
pairing mode.
(2) Press
button again and assign a number to each remote controller.
Each press of
button advances the number in the following order: 1
2 3 4.
(3) Press
button to complete the pairing setting.
After you turn the breaker ON, the remote controller that first sends a signal to an indoor unit will be regarded as the remote controller for the indoor unit. Once they are set, the indoor unit will only receive the signal from the assigned remote controller afterwards. The setting of indoor unit will be canceled, if the breaker is turned OFF or the power supply is shut down.
En-5
SELECTING OPERATION MODES
I FEEL mode
The unit selects the operation mode according to the room temperature when I
FEEL is selected. When the room temperature is higher than 25°C, COOL is
selected (set temperature: 24°C). When the room temperature is lower than
25°C, DRY is selected. However, when operation is stopped and then started
within 2 hours, the mode which has been selected previously is operated.
Note:
During COOL operation, the set temperature may not be changed when the room
temperature is more than 2°C higher than the set temperature. In this case,
please wait until the room temperature drops to within 2°C of the set
temperature.
COOL mode
Enjoy cool air at your desired temperature.
DRY mode
1 Press
to start the operation.
2 Press
to select operation mode. Each press
changes mode in the following order:
(I FEEL) (COOL)
(DRY)
(FAN)
3
Press
or
to set the temperature.
Each press raises or lowers the temperature by 1°C.
Dehumidify your room. The room may be cooled slightly. Temperature cannot be
set during DRY mode.
FAN mode
Circulate the air in your room.
Note:
After COOL/DRY mode operation, it is recommended to operate in the FAN mode to
dry inside the indoor unit.
Press
to stop the operation.
Note:
Operation indicator lamp The operation indicator lamp shows the operation
state of the unit.
Indication
Operation state
Room temperature
The unit is operating to reach the set temperature
About 2°C or more away from set temperature
The room temperature is approach- About 1 to 2°C from
ing the set temperature
set temperature
Demand Response mode Page 11
—
Lit
Blinking
Not lit
En-6
OPERATING INSTRUCTIONS
FAN SPEED AND AIRFLOW DIRECTION ADJUSTMENT
Fan speed
1 Press
to select fan speed. Each press changes
fan speed in the following order:
(AUTO) (Quiet) (Low) (Medium) (High) (Super High)
· Two short beeps are heard from the indoor unit when set to AUTO. · Use
higher fan speed to cool the room quicker. It is recommended to
lower the fan speed once the room is cool. · Use lower fan speed for quiet
operation.
Up-down Airflow direction
1 Press
to select airflow direction. Each press
changes airflow direction in the following order:
(AUTO) (1)
(2)
(3)
(4)
(5) (SWING)
(AUTO)………The vane is set to the most efficient airflow direction. : horizontal
position.
(Manual) …….For efficient air conditioning, select the upper position for
COOL/DRY, and the lower position for FAN. If the lower position is selected
during COOL/DRY, the vane automatically moves to the upward position after 0.5
to 1 hour to prevent any condensation from dripping.
(Swing) ………The vane moves up and down intermittently.
· Two short beeps are heard from the indoor unit when set to AUTO. · Always
use the remote controller when changing the direction of air-
flow. Moving the horizontal vanes with your hands causes them to malfunction.
· When the breaker is turned on, the horizontal vanes’ position will be reset
in about a minute, then the operation will start. The same is true in the
emergency cooling operation. · When the horizontal vanes seem to be in an
abnormal position, see page 12 .
Left-right Airflow direction
1 Press
to select airflow direction. Each press
changes airflow direction in the following order:
(SWING)
En-7
LONG OPERATION
I-SAVE OPERATION
1 Press
to start LONG operation.
· Fan speed increases and the horizontal vane moves to the position for
LONG mode.
· Air reaches to longer distance.
Press
again to cancel LONG operation.
· LONG operation is cancelled when the OFF/ON, VANE, or ECONO
COOL button is pressed.
POWERFUL OPERATION
A simplified set back function enables to recall the preferred (preset)
setting with a single push of the
button. Press the button again
and you can go back to the previous setting in an instance.
1 Press
during COOL, ECONO COOL mode to
select i-save mode.
2 Set the temperature, fan speed, and airflow direction. · The same setting is
selected from the next time by simply pressing .
· One group of setting can be saved.
· Select the appropriate temperature, fan speed, and airflow direction
according to your room.
1 Press
during COOL mode Page 6 to start
POWERFUL operation.
Fan speed
: Exclusive speed for POWERFUL mode
Horizontal vane : Set position, or downward airflow position during
AUTO setting
· Temperature cannot be set during POWERFUL operation.
Press
again to cancel POWERFUL operation.
· POWERFUL operation also is cancelled automatically in 15 min-
utes, or when the OFF/ON, FAN, ECONO COOL, or i-save button is
pressed.
Press
again to cancel i-save operation.
· i-save operation also is cancelled when the MODE or POWERFUL button is pressed.
Note:
Example of use: 1. Low energy mode
Set the temperature 2°C to 3°C warmer in COOL mode. This setting is suitable
for unoccupied room, and while you are sleeping. 2. Saving frequently used
settings Save your preferred setting for COOL/ECONO COOL. This enables you to
select your preferred setting with a single push of the button.
En-8
OPERATING INSTRUCTIONS
ECONO COOL OPERATION
EMERGENCY OPERATION
When the remote controller cannot be used…
Emergency operation can be activated by pressing the emergency operation
switch (E.O.SW) on the indoor unit.
Each time the E.O.SW is pressed, the operation changes in the following order:
Operation indicator lamp
Emergency COOL Set temperature : 24°C Fan speed : Medium Horizontal vane :
Auto
Stop
Note:
· The first 30 minutes of operation is test run. Temperature control does not
work, and fan speed is set to High.
Swing airflow (change of airflow) makes you feel cooler than stationary
airflow. The set temperature and the airflow direction are automatically
changed by the microprocessor. It is possible to perform cooling operation
with
keeping comfort. As a result energy can be saved.
1 Press
during COOL mode page 6 to start
ECONO COOL operation.
The unit performs swing operation vertically in various cycles according to the
temperature airflow.
Press
again to cancel ECONO COOL operation.
· ECONO COOL operation is also cancelled when the VANE, LONG, or POWERFUL button is pressed.
AUTO RESTART FUNCTION
If a power failure occurs or the main power is turned off during operation,
“AUTO RESTART FUNCTION” automatically starts operation in the same mode as the
one set with the remote controller just before the shutoff of the main power.
When timer is set, timer setting is cancelled and the unit starts operation
when power is resumed.
If you do not want to use this function, please consult the service
representative because the setting of the unit needs to be changed.
TIMER OPERATION (ON/OFF TIMER)
1
Press
or
during operation to set the timer.
(ON timer) : The unit turns ON at the set time.
(OFF timer) : The unit turns OFF at the set time.
- or blinks. * Make sure that the current time and day are set correctly. Page 5
2 Press
(forward) and
(backward) to set the
time of timer.
Each press changes the set time 10 minutes forward/backward.
· Set the timer while
or
is blinking.
Press
or
again to cancel timer.
Note:
· ON and OFF timers can be set together. mark indicates the order of timer
operations.
· If power failure occurs while ON/OFF timer is set, see page 9 “AUTO RESTART
FUNCTION”.
En-9
WEEKLY TIMER OPERATION
· A maximum of 4 ON or OFF timers can be set for individual days of the week. · A maximum of 28 ON or OFF timers can be set for a week.
E.g. : Runs at 24°C from waking up to leaving home, and runs at 27°C from
getting home to going to bed on weekdays.
Runs at 27°C from waking up late to going bed early on weekends.
Mon
Setting1
ON
Setting2 OFF
~
24°C
Fri
6:00
8:30
Setting3 ON
17:30
27°C
Setting4 OFF
22:00
Sat
Setting1
ON
~
27°C
Sun
8:00
Setting2 OFF
21:00
Note:
The simple ON/OFF timer setting is available while the weekly timer is on. In
this case, the ON/OFF timer has priority over the weekly timer; the weekly
timer operation will start again after the simple ON/OFF timer is complete.
3
Press
,
temperature.
, and
to set ON/OFF, time, and
E.g. : [ON], [6:00] and [24°C] are selected.
Pressing
selects
ON/OFF timer.
Pressing
Pressing
Pressing timer setting.
deletes
adjusts the time.
adjusts the temperature.
- Hold down the button to change the time quickly.
Setting the weekly timer
- Make sure that the current time and day are set correctly.
1 Press
to enter the weekly timer setting mode.
blinks.
Press
and
to continue setting the timer for
other days and/or numbers.
4 Press setting.
to complete and transmit the weekly timer
which was blink-
ing goes out, and the
current time will be
displayed.
Note:
· Press
to transmit the setting information of weekly timer to the indoor
unit. Point the remote controller toward the indoor unit for 3 seconds.
· When setting the timer for more than one day of the week or one number,
does not have to be pressed per each setting. Press
once
after all the settings are complete. All the weekly timer settings will be saved.
· Press
to enter the weekly timer setting mode, and press and hold
for 5 seconds to erase all weekly timer settings. Point the remote
controller toward the indoor unit.
5 Press
to turn the weekly timer ON. (
lights.)
- When the weekly timer is ON, the day of the week whose timer setting is complete, will light.
Press again to turn the weekly timer OFF. ( goes out.)
Note:
The saved settings will not be cleared when the weekly timer is turned OFF.
2 Press
and
to select setting day and number.
E.g. : [Mon Tue … Sun] and [1] are selected.
Pressing
selects the day of
the week to be set.
Pressing
selects
the setting number.
- All days can be selected.
Checking weekly timer setting
1 Press
to enter the weekly timer setting mode.
blinks.
2 Press
or
day or number.
to view the setting of the particular
Press
to exit the weekly timer setting.
Note:
When all days of the week are selected to view the settings and a different set-
ting is included among them,
will be displayed.
En-10
OPERATING INSTRUCTIONS
DEMAND RESPONSE AND INDOOR UNIT OPERATION
Demand response
This unit has demand response capability which is compliant with AS/NZS
4755.3.1. To activate this function, you need to make a contract with remote
agents such as electric supply company, then this unit should be connected to
Demand response enabling devise (DRED). For further information, consult your
dealer. Demand response represents the automated alteration of an electrical
product’s normal mode of operation in response to an initiating signal
originating from or defined by a remote agent.
This unit supports 3 Demand Response Modes (DRMs).
DRM DRM 1 DRM 2
Description of operation in this mode
Compressor off The air conditioner does not perform cooling operation during
the demand response event.
The air conditioner continues to perform cooling operation during the demand
response event, but the electrical energy consumed by the air conditioner in a
half hour period is not more than 50% of the total electrical energy that
would be consumed if operating at the rated capacity in a half hour period.
DRM 3
The air conditioner continues to perform cooling operation during the demand response event, but the electrical energy consumed by the air conditioner in a half hour period is not more than 75% of the total electrical energy that would be consumed if operating at the rated capacity in a half hour period.
Operation indicator lamp
Lit
Not lit
Left lamp is lit.
Right lamp blinks.
2.5 sec
0.5 sec 2.5 sec
2.5 sec
Note: · DRM is automatically activated or released according to the signals from DRED. DRM cannot be invalidated or changed manually. · You might feel this unit does not sufficiently perform cooling operation during DRM. · Operation settings can be changed as usual with the remote controller during DRM. However, you might not feel cool enough as DRM is prioritized.
En-11
CLEANING
Instructions:
· Switch off the power supply or turn off the breaker before cleaning. · Be
careful not to touch the metal parts with your hands. · Do not use benzine,
thinner, polishing powder, or insecticide. · When dirt stands out, wash it
with kitchen neutral detergent diluted with
lukewarm water to the specifi ed concentration, then wipe off the detergent
with a damp towel.
· Do not use a scrubbing brush, a hard sponge, or the like. · Do not soak or
rinse the horizontal vane. · Do not use water hotter than 50°C. · Do not
expose parts to direct sunlight, heat, or fire to dry. · Do not apply
excessive force on the fan as it may cause cracks or breakage.
Air cleaning filter (Anti-Allergy Enzyme Filter, option)
Back side of air filter
Front panel
Hinge Hole
1. Lift the front panel until a “click” is heard. 2. Hold the hinges and pull
to remove as shown in the above illustration.
· Wipe with a soft dry cloth or rinse it with water. · Do not soak it in water
for more than two hours. · Dry it well in shade. 3. Install the panel by
following the removal procedure in reverse. Close the front panel securely and
press the positions indicated by the arrows.
Clean every 3 months: · Remove dirt by a vacuum cleaner. Pull to remove from
the air filter. · Put it back to its original position, and install all tabs
of the air filter. When dirt cannot be removed by vacuum cleaning: · Soak the
filter and its frame in lukewarm water before rinsing it.
(Diluted mild detergents can be used when dirt cannot be removed.) · After
washing with water, dry it well in shade. Install all tabs of the air filter.
Every year: · Replace it with a new air cleaning filter for best performance.
· Parts Number MAC-1415FT-E
Air filter (Nano platinum filter)
· Clean every 2 w eeks
· Remove dirt by a vacuum cleaner, or rinse with water. · After washing with
water, dry it well in shade.
What is “Nano platinum filter”?
Nano platinum is a ceramic particle that includes a platinum nanoparticle. The
particles are incorporated into the filter material, which results in
providing semipermanent antibacterial and deodorizing characteristics for the
filter. Nano platinum surpasses the catechin (a bioflavonoid that is found in
green tea) in performance. Nano platinum filter uses this compound not only to
improve air quality but also to eliminate bacteria and viruses. This air
filter has a semi-permanent lasting effect even after washing it with water.
Important
· Clean the filters regularly for best performance and to reduce pow er
consumption.
· Dirty filters cause condensation in the air conditioner which will
contribute to the growth of fungi such as mold. It is therefore recommended to
clean air filters every 2 w eeks.
En-12
OPERATING INSTRUCTIONS
WHEN YOU THINK THAT TROUBLE HAS OCCURRED
Even if these items are checked, when the unit does not recover from the trouble, stop using the air conditioner and consult your dealer.
Symptom Indoor Unit The unit cannot be operated.
The horizontal vane does not move.
The unit cannot be operated for about 3 minutes when restarted. Mist is
discharged from the air outlet of the indoor unit. The swing operation of the
HORIZONTAL VANE is suspended for a while, then restarted. When SWING is
selected in COOL/DRY/FAN mode, the lower horizontal vane does not move. The
airflow direction changes during operation. The direction of the horizontal
vane cannot be adjusted with the remote controller.
Explanation & Check points
· Is the breaker turned on? · Is the power supply plug connected? · Is the ON
timer set? Page 9
· Are the horizontal vane and the vertical vane installed correctly?
· Is the fan guard deformed? · When the breaker is turned on, the horizontal
vanes’ position will be reset in about a minute. After the reset has
completed, the normal horizontal vanes’ operation resumes. The same is true in
the emergency cooling operation.
· This protects the unit according to instructions from the microprocessor.
Please wait.
· The cool air from the unit rapidly cools moisture in the air inside the
room, and it turns into mist.
· This is for the swing operation of the HORIZONTAL VANE to be performed
normally.
· It is normal that the lower horizontal vane does not move when SWING is
selected in COOL/ DRY/FAN mode.
· When the unit is operated in COOL or DRY mode, if the operation continues
with air blowing down for 0.5 to 1 hour, the direction of the airflow is
automatically set to upward position to prevent water from condensing and
dripping.
The unit starts operation by
itself when the main power is
turned on, though it isn’t operated with the remote controller.
· These models are equipped with an auto restart function. When the main power
is turned off without stopping the unit with the remote controller and is
turned on again, the unit starts operation automatically in the same mode as
the one set with the remote controller just before the shutoff of the main
power.
Refer to “AUTO RESTART FUNCTION”. Page 9
The indoor unit discolors over time.
· Although plastic turns yellow due to the influence of some factors such as
ultraviolet light and
temperature, this has no effect on the product
functions.
The ceiling and the walls around · It is because the ceiling and the walls get dust
the indoor unit have smudges.
in the air due to air circulation by the air condi-
tioner.
Water leaks from the indoor unit.
Outdoor Unit
· Is the front panel closed accurately? Page 12 · Does water flow smoothly
from the edge of the
drain hose?
The fan of the outdoor unit does not rotate even though the compressor is running. Even if the fan starts to rotate, it stops soon.
· When the outside temperature is low during cooling operation, the fan operates intermittently to maintain sufficient cooling capacity.
Water leaks from the outdoor unit.
· During COOL and DRY operations, pipe or pipe connecting sections are cooled and this causes water to condense.
Remote controller
The display on the remote controller does not appear or it is dim. The indoor unit does not respond to the remote control signal.
· Are the batteries exhausted? Page 5 · Is the polarity (+, -) of the
batteries correct?
Page 5 · Did you press the reset button after replacing the
batteries? Page 5 · Is the setting of multiple indoor units’ installation the
same as before replacing the batteries? Page 5 · Are any buttons on the remote
controller of other
electric appliances being pressed? · The indoor unit may not receive the
signal well
depending on the condition in the room. Get close to the indoor unit and
operate the remote controller.
Symptom Does not cool The room cannot be cooled sufficiently.
Airflow The air from the indoor unit smells strange.
Sound Cracking sound is heard. “Burbling” sound is heard.
Mechanical sound is heard from the indoor unit. The sound of water flowing is
heard. Hissing sound is sometimes heard. Timer Weekly timer does not operate
according to settings.
The unit starts/stops the operation by itself. Others The aluminum fin on the
edge of the heat exchanger is discolored as if it is burnt.
Explanation & Check points
· Is the temperature setting appropriate? Page 6
· Is the fan setting appropriate? Please change fan speed to High or Super
High. Page 7
· Are the filters clean? Page 12 · Is the fan or heat exchanger of the indoor
unit
clean? Page 12 · Are there any obstacles blocking the air inlet or
outlet of the indoor or outdoor unit? · Is a window or door open? · It may
take a certain time to reach the setting
temperature or may not reach that depending on the size of the room, the
ambient temperature, and the like. · When a ventilation fan or a gas cooker is
used in a room, the cooling load increases, resulting in an insufficient
cooling effect. · When the outside temperature is high, the cooling effect may
not be sufficient.
· Are the filters clean? Page 12 · Is the fan or heat exchanger of the indoor
unit
clean? Page 12 · The unit may suck in an odor adhering to the
wall, carpet, furniture, cloth, etc. and blow it out with the air.
· This sound is generated by the expansion/contraction of the front panel,
etc. due to change in temperature.
· This sound is heard when the outside air is absorbed from the drain hose by
turning on the range hood or the ventilation fan, making water flowing in the
drain hose to spout out. This sound is also heard when the outside air blows
into the drain hose in case the outside wind is strong.
· This is the switching sound in turning on/off the fan or the compressor.
· This is the sound of refrigerant or condensed water flowing in the unit.
· This is the sound when the flow of refrigerant inside the unit is changed.
· Is the ON/OFF timer set? Page 9 · Transmit the setting information of the
weekly
timer to the indoor unit again. When the information is successfully received,
a long beep will sound from the indoor unit. If information fails to be
received, 3 short beeps will be heard. Ensure information is successfully
received. Page 10 · When a power failure occurs and the main power turns off,
the indoor unit built-in clock will be incorrect. As a result, the weekly
timer may not work normally. Be sure to place the remote controller where the
signal can be received by the indoor unit. Page 5
· Is the weekly timer set? Page 10
· This is the coating resin discolored due to welding heat when the heat
exchanger was being produced. The operation of the air conditioner is not the
cause of the discoloration. It affects neither the performance of the heat
exchanger nor the use of the air conditioner.
In the following cases, stop using the air conditioner and consult your
dealer. · When water leaks or drips from the indoor unit. · When the operation
indicator lamp blinks. · When the breaker trips frequently. · The remote
control signal is not received in a room where an electronic ON/
OFF type fluorescent lamp (inverter-type fluorescent lamp, etc.) is used. ·
Operation of the air conditioner interferes with radio or TV reception. An
ampli-
fier may be required for the affected device. · When an abnormal sound is
heard. · When any refrigerant leakage is found.
En-13
WHEN THE AIR CONDITIONER IS NOT
GOING TO BE USED FOR A LONG TIME
1 Operate by COOL mode with the highest temperature set or FAN mode for 3 to 4 hours. Page 6 · This dries the inside of the unit. · Moisture in the air conditioner contributes to favorable conditions for growth of fungi, such as mold.
2 Press
to stop the operation.
3 Turn off the breaker and/or disconnect the power supply plug.
4 Remove all batteries from the remote controller.
When using the air conditioner again:
1 Clean the air filter. Page 12
2 Check that the air inlet and outlet of the indoor and outdoor units are not
blocked.
3 Check that the earth is connected correctly.
4 Refer to the “PREPARATION BEFORE OPERATION”, and follow the instructions.
Page 5
INSTALLATION PLACE AND
ELECTRICAL WORK
Installation place
Avoid installing the air conditioner in the following places. · Where there is
much machine oil. · Salty places such as the seaside. · Where sulfide gas is
generated such as hot spring, sewage, waste water. · Where oil is splashed or
where the area is filled with oily smoke (such as cook-
ing areas and factories, in which the properties of plastic could be changed
and damaged). · Where there is high-frequency or wireless equipment. · Where
the air from the outdoor unit air outlet is blocked. · Where the operation
sound or air from the outdoor unit bothers the house next door. · The mounting
height of indoor unit 1.8 m to 2.3 m is recommended. If it is impossible,
please consult your dealer. · Do not operate the air conditioner during
interior construction and finishing work, or while waxing the floor. Before
operating the air conditioner, ventilate the room well after such work is
performed. Otherwise, it may cause volatile elements to adhere inside the air
conditioner, resulting in water leakage or scattering of dew. · This equipment
should be installed and operated with a minimum distance of 20 cm between the
device and the user or bystanders.
The installation location of the outdoor
unit should be at least 3 m away from
the antennas for TV sets, radios, etc. In
areas where the reception is weak, pro-
vide greater space between the outdoor
unit and the antenna of the affected
Inverter-type
device if operation of the air conditioner
To prevent the effects fluorescent lamp interferes with radio or TV reception.
of a fluorescent lamp,
keep as far apart as possible.
For the optimum efficiency and to extend wall, etc. the life time of using,
the outdoor unit
should be installed in
Keep a space a well-ventilated dry
to prevent
place.
the picture
1 m or more
Cordless phone or
distortion or
the noise.
1 m
or more
TV
100 mm or more
500 mm or more
Portable
phone Radio
3 m or more
Electrical work
· Provide an exclusive circuit for the power supply of the air conditioner. ·
Be sure to observe the breaker capacity.
If you have any questions, consult your dealer.
SPECIFICATIONS
Guaranteed operating range
Upper limit Cooling
Lower limit
Indoor
32°C DB 23°C WB
21°C DB 15°C WB
Outdoor
46°C DB —
-10°C DB —
DB : Dry Bulb WB : Wet Bulb
En-14
HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310,
JAPAN
DG79A0CGH01