MITSUBISHI ELECTRIC MS-GA60VB (01) PDF DOCUMENT

WARNINGS:

• Do not use an intermediate connection of the power supply cord or an extension cord, and do not connect many devices to one AC outlet to prevent fire or electric shock.

• Remove dirt from the power supply plug and insert it securely into the outlet. Incomplete insertion or dirt may cause a fire or electric shock.

• Do not scratch, process, or put heavy objects on the power supply cord. A damaged cord can cause a fire or electric shock.

• Do not turn the breaker off/on or disconnect/connect the power supply plug during operation. This can cause sparks and lead to a fire.

• Do not expose your skin directly to cool air for a long time, as this could damage your health.

• Installation, repairs, or relocation should not be done by the customer. Incorrect work can cause fire, electric shock, or injury. If the power supply cord is damaged, it must be replaced by the manufacturer or its service agent.

• Never insert your finger or a stick into the air inlet/outlet, as the fan rotates at high speed and can cause injury.

• If an abnormality like a burning smell occurs, stop the air conditioner, disconnect the power supply plug, and/or turn off the breaker. Continuing to operate in an abnormal condition may cause a fire or other trouble.

CAUTIONS:

• When removing the air filter, do not touch the metal parts of the indoor unit to avoid injury.

• Do not touch the air inlet or aluminum fin of the outdoor unit to prevent injury.

• Do not place other electric appliances or furniture under the indoor/outdoor unit, as dripping water may cause damage or malfunction.

• Do not step onto an unstable bench when performing maintenance, as you could fall and get injured.

• Do not operate the unit for a long time in high humidity (80% RH or more) with a door or window open, as condensed water may drop and damage furniture.

• Do not use the unit for special purposes, such as preserving food, animals, or art objects, as this may cause quality deterioration.

• Do not operate switches with wet hands to avoid electric shock.

• Do not clean the air conditioner with water. Water can enter the unit and degrade insulation, causing an electric shock.

Installation should not be performed by the customer, as special techniques are required. Incorrect installation can lead to fire, electric shock, injury, or water leakage. Always consult your dealer or a qualified contractor.

• Installation Place: Avoid installing the unit in places with flammable gas leaks, excessive machine oil, salty environments (like the seaside), or where sulfide gas is present. The unit should not be installed where oil is splashed or in areas with oily smoke. The installation location for the outdoor unit should be at least 3 meters away from TV and radio antennas.

• Electrical Work: A dedicated circuit must be provided for the power supply of the air conditioner. The customer should not install the unit themselves.

• Earthing: The unit must be earthed. Do not connect the earth wire to a gas pipe, water pipe, lightning rod, or telephone earth wire. Incorrect earthing can cause an electric shock.

• Earth Leakage Breaker: An earth leakage breaker should be installed, especially in humid locations. If not installed, it may cause an electric shock.

• Drainage: Ensure the drain is fully drained. An incomplete drainage route can cause water to drop from the unit, potentially wetting and damaging furniture.

1. Power Supply: Insert the power supply plug into the power outlet and/or turn the breaker on. Ensure the plug is clean and fully inserted to prevent fire or electric shock.

2. Check Air Conditioner Type: Verify your model type using the table below.

3. Set Up the Remote Controller:

1. Remove the front lid of the remote, insert two new AAA alkaline batteries (minus pole first), and reattach the lid. Check for correct polarity.

2. Press the RESET button using a thin stick. The remote may not operate correctly if this is not done.

3. Press the CLOCK set button using a thin stick.

4. Press the HR. and MIN. buttons to set the current time. Each press of the HR. button advances the time by 1 hour; each press of the MIN. button advances it by 1 minute.

5. Press the CLOCK set button again and close the front lid.

The MITSUBISHI ELECTRIC MS-GA60VB is equipped with an auto restart function. If a power failure occurs or the main power is turned off during operation, this function automatically restarts the unit in the same mode (operation mode, set temperature, fan speed) that was set on the remote controller just before the power was cut.

• If the unit was turned off with the remote controller before the power failure, it will remain off when power is restored.

• If the unit was in “I FEEL…” mode before a power failure, the operation is not stored. The mode will be re-determined based on the room temperature when it restarts.

• If you do not want to use this function, the setting needs to be changed by a service representative.

If the remote controller’s batteries are dead or it is malfunctioning, you can use the EMERGENCY OPERATION switch located on the indoor unit (behind the front panel).

For COOL ONLY type (MS series):

• Press the EMERGENCY OPERATION switch. The unit will first run in a test mode for 30 minutes, then shift to EMERGENCY COOL MODE.

• Each subsequent press of the switch will alternate between EMERGENCY COOL MODE and STOP MODE.

For COOL & HEAT type (MSH series):

• Each press of the EMERGENCY OPERATION switch cycles the unit through EMERGENCY COOL MODE, EMERGENCY HEAT MODE, and STOP MODE.

• When first pressed, the unit will operate in a test run for 30 minutes before shifting to the selected emergency mode.

Emergency Mode Details:

During the initial 30-minute test run, temperature control is disabled, and the fan speed is set to High. After 30 minutes, the fan speed shifts to Medium, and the following preset conditions apply:

The “I FEEL…” auto operation mode automatically sets the optimum room condition with a single touch.

• To start operation: Press the ON/OFF button. If “I FEEL…” is not the current mode, press the MODE button until “I FEEL…” is selected.

• To stop operation: Press the ON/OFF button again.

• Temperature Adjustment: If you feel slightly warm, press the ‘down arrow’ temperature button to lower the temperature by about 1°C. If you feel slightly cool, press the ‘up arrow’ temperature button to raise it by about 1°C.

The air conditioner automatically selects COOL, DRY, or HEAT mode based on the room temperature when the operation starts. The operation is determined as follows:

To select an operation mode:

1. Press the ON/OFF button to start the unit.

2. Press the MODE button to cycle through the available modes. The sequence is: I FEEL… → COOL → DRY → HEAT (MSH series only) / FAN (MS series only).

To change the set temperature:

• Press the ‘down arrow’ temperature button to lower the temperature.

• Press the ‘up arrow’ temperature button to raise the temperature. Each press changes the temperature by about 1°C.

Note: Temperature control cannot be set in DRY or FAN mode.

To stop operation:

• Press the ON/OFF button.

To change Air Flow Velocity (Fan Speed):

• Press the FAN button. Each press cycles the fan speed in the sequence: (Low) → (Medium) → (High) → (AUTO).

To change Vertical Air Flow Direction (Horizontal Vane):

• Press the VANE button. Each press changes the angle of the horizontal vane. Selecting SWING makes the vane move up and down continuously. Selecting AUTO sets the vane to the most suitable position for the operation mode.

To change Horizontal Air Flow Direction (Vertical Vane):

• Press the WIDE VANE button. Each press changes the angle of the vertical vanes. Selecting SWING makes the vanes move left and right continuously.

Note: Adjust the vanes using the remote controller only. Moving them manually may cause trouble.

LONG Operation:

Use this function to make the air flow reach a long distance. Press the LONG button while the unit is operating to activate it. The fan speed increases, and the horizontal vane moves to a position for long-range air flow. Press the LONG button again to release the mode.

ECONO COOL Operation:

This function provides comfortable cooling with energy savings. Press the ECONO COOL button during MANUAL COOL mode. The unit performs a swing operation and automatically sets the temperature 2°C higher. The swinging air flow makes you feel cooler than constant air flow, allowing for energy savings. Press the ECONO COOL button again to release the mode.

Note: The current time must be set on the remote controller for the timer to function.

How to set the ON timer:

1. Press the START button (On-timer) during operation. The display will show the timer mode.

2. Set the desired ON time using the HR. (hour) and MIN. (minute) buttons.

• To release the ON timer, press the START button again.

How to set the OFF timer:

1. Press the STOP button (Off-timer) during operation. The display will show the timer mode.

2. Set the desired OFF time using the HR. (hour) and MIN. (minute) buttons.

• To release the OFF timer, press the STOP button again.

The ON and OFF timers can be used in combination. The timer for the set time that is reached first will operate first.

1. Perform the FAN operation for 3 to 4 hours to dry the inside of the air conditioner. For COOL ONLY models, select FAN mode. For COOL & HEAT models, set the unit to MANUAL COOL mode at the highest temperature setting.

2. Turn off the breaker and/or disconnect the power supply plug. This prevents dirt accumulation and potential fire hazards.

3. Remove the batteries from the remote controller to prevent liquid leakage.

1. Clean the air filter and install it in the indoor unit.

2. Check that the air inlet and outlet of the indoor and outdoor units are not blocked by any obstacles.

3. Check that the earth connection is correct.

4. Insert batteries into the remote controller and set the clock.

5. Connect the power supply and turn the unit on.

Clean the air filter (Catechin) about once every 2 weeks. Before starting, turn off the breaker and/or disconnect the power supply plug.

1. Open the front panel and remove the air filter.

2. Remove dirt from the air filter using a vacuum cleaner, or by washing it with water. If the dirt is noticeable, wash it in a solution of mild detergent diluted in lukewarm water. Do not use hot water (50°C or more) as it may deform the filter.

3. After washing, dry the air filter well in the shade. Do not expose it to direct sunlight or heat from a fire.

4. Re-install the air filter securely.

The disposable air cleaning filter (White bellows type) should be replaced about every 4 months, or when the unit’s capacity is lowered due to dirt. If the filter’s color turns to dark brown, replace it at once. A clogged filter can lower capacity or cause condensation.

To replace the filter:

1. Remove the standard air filter.

2. Remove the old air cleaning filter.

3. Install a new air cleaning filter.

4. Install the standard air filter and securely close the front panel.

The optional part can be purchased from your local dealer.

• Is the breaker turned on?

• Is the fuse blown?

• Is the ON timer set?

• Is the temperature setting correct?

• Is the filter clean?

• Are there any obstacles blocking the air inlet or outlet of the indoor or outdoor unit?

• Is a window or door open?

• In a room where a ventilation fan or gas cooker is used, the cooling load increases, which may result in an insufficient cooling effect.

• When the outside air temperature is high (for cooling) or low (for heating), the effect may not be sufficient.

If the display does not appear or is dim, or if the indoor unit does not respond to the remote signal, please check the following:

• Are the batteries exhausted? If so, replace them.

• Is the polarity (+, -) of the batteries correct?

• Are any buttons on the remote controller of other electric appliances being pressed nearby?

This is a normal protection feature. The microprocessor prevents operation for approximately 3 minutes after a restart to protect the air conditioner’s components. Please wait.

This is not a malfunction. The air conditioner may suck in odors from walls, carpets, furniture, or cloth and then blow them out with the air. Ensure the air filter is clean to minimize this.

These sounds are typically normal operational noises and not malfunctions:

• Cracking sound: This is caused by the expansion and contraction of the front panel due to temperature changes.

• Water flowing sound: This is the sound of refrigerant flowing inside the air conditioner or condensed water in the heat exchanger.

• Burbling sound: This can be heard when outside air is drawn in through the drain hose, for example, when a kitchen range hood is turned on.

• Hissing sound: This is the sound of the refrigerant flow being switched inside the unit, which is normal.

This is an automatic function to ensure comfort and prevent issues:

• In COOL or DRY mode, if the unit operates with air blowing downwards for 1 hour, the airflow direction automatically changes to horizontal to prevent condensed water from dripping.

• In HEATING mode, if the airflow temperature is too low or during defrosting, the horizontal vane position is automatically set to horizontal to prevent blowing cold air onto occupants.

• Water leaks: During COOL and DRY operations, pipes are cooled, causing atmospheric moisture to condense and drip. During HEATING, the defrosting operation melts frost on the outdoor unit, which then drips down. This is normal.

• White smoke: In the HEATING operation, vapor generated by the defrosting process may look like white smoke. This is not a malfunction.

The unit is performing a defrosting operation. When the external temperature is low and humidity is high, frost can form on the outdoor unit. The defrosting cycle removes this frost to maintain heating efficiency. This process can take up to 10 minutes. Please wait for the operation to resume.