ENGLISH AIR-CONDITIONER USER’S MANUAL Downloaded from AC-Manual.
Thank you for purchasing a MITSUBISHI HEAVY INDUSTRIES, LTD. Air-Conditioner. To get the best long-lasting performance, read and follow this User’s Manual carefully before using your air-conditioner. After reading, please store the Manual in a safe place and refer to it for operational questions or in the event of any irregularities. This air-conditioner is intended for domestic use. ENGLISH contents Safety precautions........................................................................................
Safety precautions • Before starting to use the system, please read these “Safety precautions” carefully to ensure proper operation of the system. • The safety precautions are classified as “ DANGER” and “ CAUTION”. Precautions as shown in the column “ DANGER” indicate that improper handling could have dramatic consequences like death, serious injury, etc. Nevertheless, even precautions as shown in the column “ CAUTION” might pose a serious problem, depending on the circumstances.
Safety precautions CAUTION The system should only be used for its original purpose and not for anything else like, for instance, preservation of food, plants or animals, precision devices or works of art. Do not place anything containing water, like vases, on top of the unit. The system is only intended for use in ordinary domestic rooms. Any other use of the system may damage the quality of food, etc. Water entering the unit could damage the insulation and therefore cause an electric shock.
Name of each part and its function INDOOR UNIT Air Inlet panel Draws in the indoor air. Air filter Removes dust or dirt from the inlet air. Page 15 Air-cleaning filter Room temperature detector Unit operation switch Air outlet Air blows out of here. Left/right air flow adjustment louver Page 8 Up/down air flow direction adjustment flap Page 8 Drain hose Drains water from the dehumidified air.
Transmission procedure When each button on the remote control is pressed – with the remote control pointing towards the air-conditioner unit a signal is transmitted. When the air-conditioner receives the signal correctly, it will beep. Present time setting procedure ■ When inserting the batteries, the present time is automatically set to time setting mode. Example: Set to 10:30. 1 Press the ACL switch. 2 Press the “ 3 Press the ON/OFF button. Press with the tip of a ballpoint pen, etc.
AUTO mode operation procedure ■ Automatically selects the operation mode (COOL, HEAT, DRY) depending on the room temperature when switched on. When the unit is not in AUTO mode: 1 Press MODE button. Move the [ mark] to the (Auto) position. Aim the remote control at the air-conditioner. 2 Press the ON/OFF button. To stop: NOTE Press the ON/OFF button. AUTO mode can be operated by simply pressing the ON/OFF button. • Air is not blowing out during the operation.
COOL/HEAT/DRY mode operation procedure Aim the remote control at the air-conditioner. 1 Press the MODE select button. Move the [ mark] to the desirable operation position. (Cool), 2 3 (Heat), (Dry) Press the ON/OFF button. Press the TEMP button. Press or button for the desired temperature. Standard 4 Air flow direction adjustment procedure. Press the FAN SPEED button Set the fan speed as desired. Page 8 To stop: NOTE Press the ON/OFF button. Program changing procedure Set the new program.
Air flow direction adjustment procedure Adjusting air flow direction ■ Up/down direction can be adjusted with the AIRFLOW button on the remote control. Each time when you press this button the mode changes as follows: Change to AIRFLOW mode. (Flap stopped) (Swing) NOTE • When heating operation starts, the cold air outlet is blocked, so the flap move to the horizontal position, and resume the position that was set after the warm air output begins.
SLEEP operation procedure ■ The unit stops automatically at the end of the set period of time. The room temperature is automatically controlled when the set time lapses, so that the room does not become too cold during cooling or too warm Page 11 during heating. 1 Press the SLEEP button. ■ If this is pressed while the unit is off SLEEP operation starts with the previous operation settings, and the air conditioning is turned off after the time that has been set passes.
ON-TIMER operation procedure ■ Operation starts 5 to 60 minutes before the time that is set so that the room temperature reaches the optimum temperature at that time. ON-TIMER operation can be set regardless of whether the air-conditioner is running or not. Page 11 Example: In the case you wish to bring the temperature to nearly set temperature in at 8:00. 1 2 Press the ON-TIMER button. ON TIMER indicator is blinking. Press the “ or ” button.
PROGRAM TIMER operation procedure ■ The timer operations that consist of the combination of the timer being set at both on and off. Once this has been set and operations started, operations will commence and end at the same time every day as long as the ON/OFF button is not pressed. Example: When it is desired to stop at 22:30, and then start operation at 8:00, near the set temperature. ■ OFF TIMER operation setting Set by the procedures on page 9.
HIGH POWER/ECONOMY operation procedure If the air-conditioner is not operating, aim the remote control at the air-conditioner. 1 2 Press the ON/OFF button. Press the HI POWER/ECONO button.
Concerning CLEAN operation ■ CLEAN operation should be run after AUTO, COOL and DRY operation to remove the moisture from inside the indoor unit and control the growth of mold and bacteria. 1 Press the CLEAN switch with the tip of a ballpoint pen. Each time the CLEAN switch is pressed, the indicator is switched in the order of: No indication (CLEAN off) (CLEAN on) To stop: Press the ON/OFF button. NOTE • CLEAN operation is impossible after HEAT, OFF-TIMER and SLEEP operations have stopped.
Remote control handling procedure Replacing the batteries The following cases signify exhausted batteries. Replace old batteries with new ones. • Receiving beep is not emitted when a signal is transmitted. • Indicator fades away. NOTE 1 2 Remove back lid and take out old batteries. • Don't use old and new batteries together. • Remove the batteries when the remote control is not used for a long period. • The life of a battery conforming to JIS or IEC should be 6 to 12 months with normal use.
Maintenance Before maintenance Turn off the power switch. During the operational season Cleaning the air filter 1 Remove the air filter 2 Cleaning Standard interval is once every two week 1 Pull up to this side the air inlet panel. 2 Lightly hold the knobs at both sides and lift a little to remove the panel to this side. • Don’t spill water. There's a danger of electric shock. • Don’t clean the filters with boiling water. • Don’t dry them over an open flame. • Pull them out gently.
Cooling/heating is affected by an air filter clogged up with dust etc., and the operation noise becomes louder. It may also use extra electricity. Please clean the air filter at appropriate intervals. NOTE At the beginning of the season At the end of the season 1 Set the temperature setting for approximately a half day at 30°C and perform the cooling operation. 1 Make certain that there are no obstacles blocking the air flow around the air intake and outlet openings of the indoor and outdoor units.
Has the unit been installed correctly? Suitable installation position • Is there any obstruction in front of the indoor unit, preventing proper ventilation and functioning? • Don’t install the unit in any of the following places: • Where there is a danger of leaking inflammable gases. • Where there is substantial splashing of oil. • Malfunctioning due to corrosion may occur if the unit is installed in a spa where sulfide gases are generated, or in a seaside resort exposed to sea breezes.
Please remember! You cannot restart the unit immediately after you have stopped it. Restarting has been blocked for 3 minutes after you have stopped or after switching off the power during operation, to protect the unit. (RUN light is on) Not operating? Please wait for three minutes. The three-minute protection timer in the microcomputer automatically starts up again. Air is not blown out when starting the HEATING operation.
When to contact your distributor without delay ■ Turn off the power switch immediately and inform your dealer in any of the following situations: The fuse or switch blows continuously. The cable becomes extremely hot. The covering of the cable is cracked. CAUTION Fuse often blows. If the power cord becomes damaged, ask your dealer or a qualified engineer to install the replacement to avoid accidents. The TV, radio or other equipment starts to malfunction. A switch does not activate properly.
Downloaded from AC-Manual.
ENGLISH AIR-CONDITIONER USER’S MANUAL Downloaded from AC-Manual.
