Page 3 - contents; ENGLISH; Installing two air conditioners in the same
– 1 – Thank you for purchasing a MITSUBISHI HEAVY INDUSTRIES, LTD. Air-Conditioner. Toget the best long-lasting performance, please read and follow this User’s Manual carefullybefore using your air-conditioner. After reading, please store the Manual in a safe placeand refer to it for operational que...
Page 4 - Safety precautions; INSTALLATION PRECAUTIONS; WARNING
– 2 – Safety precautions • Before starting to use the system, please read these “Safety precautions” carefully to ensure proper operation of thesystem. • When you have read this instruction manual, please keep it without missing. If someone else takes over as operator,make certain that the manual is...
Page 6 - Name of each part and its function; INDOOR UNIT
– 4 – Name of each part and its function INDOOR UNIT OUTDOOR UNIT Air outlet Air inlet (On side & rear surface) Outdoor unit fan Heat exchanger Air inlet panel Draws in the indoor air. Page 24 Indoor unit fan Air filter Removes dust or dirt from the inlet air. Page 24 Wireless remote control Dra...
Page 7 - Unit display section; Buzzer sound for remote control; Preset temperature; Accessories
– 5 – RUN TIMER ECONO ON/OFF HI POWER Unit display section ECONO light (orange) Illuminates during ECONOMY operation. HI POWER light (green) Illuminates during HIGH POWER operation. TIMER light (yellow) Illuminates during TIMER operation. This button can be used for turning on/off the unit whenremot...
Page 8 - Remote control handling; Replacing the batteries; Using the remote control holder; Warning note for remote control handling; Operation failure with the remote control; Temporary run operation
– 6 – Remote control handling 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. • Display fades away. NOTE • Do not use old and new batteries together. • Remove the batteries whe...
Page 9 - Installing two air conditioners in the same room; Setting the remote control; Child Lock
– 7 – Installing two air conditioners in the same room ■ When two air conditioners are installed in the same room, use this setting when the two air conditioners are not operated with oneremote control. Set the remote control and indoor unit. Pull out the cover and take out batter-ies. Disconnect th...
Page 10 - Transmission procedure; Operation and display section for remote control; Operation section
– 8 – 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. OPERATION MODE select button Each time the button is press...
Page 11 - AUTO mode operation; Current time setting
– 9 – AUTO mode operation ■ Automatically selects the operation mode (COOL, HEAT, DRY) depending on the room temperature when switched on. • If you do not want the AUTO mode program, changeto COOL, HEAT, DRY or FAN instead of AUTO. Page 11 • Airflow direction adjustment procedure. Page 12 AUTO mode ...
Page 12 - Temperature adjustment during AUTO; FAN SPEED
– 10 – AUTO HI MED LO ULO Temperature adjustment during AUTO ■ Air temperature adjustment is possible even during automatic operation. There are 6 levels of adjustment possible with the button orthe button.During automatic operation, 24°C is preset both for heating and cooling. 1 When a change in te...
Page 13 - Air-conditioner operable temperature setting; Characteristics of HEAT mode operation; Mechanism and capacity of HEAT mode operation
– 11 – COOL/HEAT/DRY/FAN mode operation Airflow direction adjustment procedure. Page 12 Point the remote control toward the air-conditioner, and Press the MODE select button. Set to a required mode. (Cool), (Heat), (Dry), (Fan) Press the ON/OFF button. Press the TEMP button. Press or button for the ...
Page 14 - Airflow direction adjustment; D AUTO operation
– 12 – Airflow direction adjustment Adjusting airflow direction ■ Up/down direction can be adjusted with the AIRFLOW U/D (UP/DOWN) button on the remote control. Every time you press thisbutton the mode changes as follows: Change on AIRFLOW (UP/DOWN) mode. ■ Left/right direction can be adjusted with ...
Page 15 - SLEEP TIMER operation
– 13 – ■ If it is pressed while the unit is off SLEEP TIMER operation starts with the previous operation settings, and the airconditioning is turned off after the set time elapses. ■ If it is pressed while the unit is running The air conditioner is turned off after the set time elapses.Every time th...
Page 17 - ALLERGEN CLEAR operation
– 15 – ALLERGEN CLEAR operation Aim the remote control at the air-conditioner. Press the ALLERGEN CLEAR button. 1 ■ The power of enzymes is used to eliminate allergy-causing allergens that accu-mulate on the allergen clear filter. To stop: Press the ON/OFF orALLERGEN CLEAR button. • Since the room t...
Page 18 - WEEKLY TIMER operation; WEEKLY TIMER ON/OFF setting
– 16 – WEEKLY TIMER operation ■ Up to 4 programs with timer operation (ON-TIMER / OFF-TIMER) are available for each day of the week. Max 28 programs per weekare available. Once this has been set, the timer operation will be repeated at the same programs every week unless the WEEKLYTIMER is canceled....
Page 22 - HIGH POWER/ECONOMY operation
– 20 – Press the ON/OFF button. Press the HI/ECO button. • When the operating mode is AUTO, COOL or HEAT Every time the HI/ECO button is pressed, the display is switched in the order of: No display • When the operating mode is DRY or ON-TIMER + OFF-TIMEREvery time the HI/ECO button is pressed, the d...
Page 24 - SELF CLEAN operation; Auto restart function; Tips for effective operation
– 22 – SELF CLEAN operation 1 In order to active CLEAN operation, press the CLEAN switch with the tip of a ballpoint pen. Every time the CLEAN switch is pressed, the display isswitched in the order of: No display ■ CLEAN operation should be run after AUTO, COOL and DRY operation to remove the moistu...
Page 25 - Installation location setting; Air conditioner installation location and airflow range
– 23 – Installation location setting 1 If the air conditioning unit is running, press the ON/OFF button to stop. The installation location setting cannot be made while the unit is running. ■ Take the air conditioning unit’s location into account and adjust the left/right airflow range to maximize ai...
Page 26 - Maintenance; Before maintenance; How to open, close the air inlet panel
– 24 – Turn off the power supply. Remove the air filter Maintenance Cleaning the air filter Do not use the following articles: • Hot water (40°C or more)It may deform or discolour the unit. • Petrol, paint thinner, benzine or cleanser, etc.They may deform or scratch the unit. • Do not spill any liqu...
Page 27 - At the beginning of the season; Installing, inspecting, and replacing the air-cleaning filter; At the end of the season
– 25 – Stop the unit and turn off the power supply. The unit consumes approx. 4W even when the unit is not operat-ing. Turning off the power supply will help saving energy consumptionand cost. At the beginning of the season Ensure that the earth wiring is not snappednor disconnected. Make sure that ...
Page 28 - Proper installation; Pay attention to operating noises!; Suitable installation position; Troubleshooting
– 26 – Proper installation Pay attention to operating noises! • When you install the unit, take care to choose a place that can comfortably stand the weight of the unit and does not increase theoperating noise or vibration. If vibration is transmitted through the house, fix the unit with the aid of ...
Page 29 - Notice
– 27 – Airflow is not blown out for 5 to 15 min. or blown out notwarm wind for a moment at HEATING operation. RUN light blinks slowly (1.5 sec ON, 0.5 sec OFF) Notice T h e u n i t d o e s n o t r e s t a r t i m m e d i a t e l y a f t e r y o u h a v estopped it. (RUN light is on) Not operating? A...
Page 30 - Contact your dealer; About the Multiple Air-conditioner; Automatic Operation
– 28 – Contact your dealer ■ Turn off the power switch immediately and inform your dealer in any of the following situations: The fuse or switch blows continu-ously. The cable becomes extremely hot.The covering of the cable is cracked. T h e T V , r a d i o o r o t h e r e q u i p m e n tstarts to m...
Page 31 - Self diagnosis function
– 29 – Self diagnosis function ■ We are constantly trying to do better service to our customers by installing such judges that show abnormality of each function as follows: Outdoor temperature sensor error • Broken outdoor sensor wire, poor connector connection Description of trouble Room temperatur...