Mitsubishi MUZ-A12YVH- User Manual

Page 2 - WARNING; CONTENTS; Marks and their meanings

2 FRONT PANEL ENCLOSURE ENCLOSURE AIR OUTLET • This air conditioner is NOT intended for use by children or infirm persons without supervisions. Do not use intermediate connection of the power supply cord or the extension cord and do notconnect many devices to one AC outlet. • A fire or an electric s...

Page 3 - For installation; SAFETY PRECAUTIONS; Indoor unit

3 Do not use the unit for special purposes. • Do not use this air conditioner to preserve precision devices, food, animals, plants and art objects.This may cause deterioration of quality, etc. Do not put a stove, etc. where they are exposed to direct airflow. • This may cause imperfect combustion. W...

Page 4 - NAME OF EACH PART; Remote controller; PREPARATION BEFORE OPERATION; Auto restart function

4 ON/OFF FAN TOO WARM TOO COOL VANE MODE ECONO COOL STOP START HR. MIN. A M P M RESET CLOCK I FEEL COOL DRY AUTO HEAT Signal transmitting section Operation display section Operation select button Fan speed control button ECONO COOL button On-timer button CLOCK set button HR.buttonMIN.button(Time set...

Page 5 - Press the RESET button.; Operation Indicator lamp; When the remote controller cannot be used (emergency operation); Handling of the remote controller

5 Remote controller How to set the batteries and the currenttime 1 Remove the front lid and insert batteries.Then reattach the front lid. Insert the minus pole of the batteries first.Check if the polarity of the batteries is correct. 2 Press the RESET button. • If the RESET button is not pressed, th...

Page 6 - If you feel slightly warm:; If you feel slightly cool:; Details of operation; Details of display on the indoor unit

6 With the “ (I FEEL...)” auto operation mode, the optimum room condition can be set automatically with a one-touch operation. To start operation: ■ Press the ON/OFF button. When the “ (I FEEL...)” mode is selected, the air conditioner is automatically controlled at the optimum temperature. To stop ...

Page 7 - To select the AUTO mode:; Description of “AUTO CHANGEOVER”; HEAT) and becomes a state of; In COOL operation; Description of “AUTO RESTART FUNCTION”

7 To select the AUTO mode: 1 Press the ON/OFF button. 2 Select the (AUTO) mode by pressing the MODE button. Each time this button is pressed, the operation mode is changed in sequence: (I FEEL...) → (AUTO) → (COOL) → (DRY) → (HEAT) The set temperature is also displayed on the remote controller. To s...

Page 8 - AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT; ECONO COOL OPERATION

8 1 2 3 4 5 AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT AIR FLOW velocity and direction can be selected as required. ■ To change the AIR FLOW velocity, press the FAN button. Each time the button is pressed, the fan speed is changed in sequence: (Low) → (Med.) → (High) → (AUTO) • Use the (High) notch ...

Page 9 - Check that the earth is connected correctly.; MAINTENANCE; Before starting maintenance; Clean the unit using a soft dry cloth.; Front panel; CLEANING THE FRONT PANEL, HEAT EXCHANGER AND FAN; Fan

9 WHEN THE AIR CONDITIONER IS NOT GOING TO BEUSED FOR A LONG TIME When it is not going to be used for a longtime: 1 Perform the FAN operation for 3 or 4 hoursto dry the inside of the air conditioner. • To perform FAN operation, set the remote control-ler to the highest temperature in the MANUAL COOL...

Page 10 - Remove the catechin air filter.; REPLACEMENT OF THE AIR CLEANING FILTER; Air cleaning filter replacement (about once every 4 months); CLEANING THE CATECHIN AIR FILTER; Cleaning the catechin air filter (about once every 2 weeks); Install the catechin air filter.; What is “Catechin air filter”?; Air cleaning filter; Parts number

10 1 Remove the catechin air filter. 2 Remove the air cleaning filter (White bellowstype). REPLACEMENT OF THE AIR CLEANING FILTER When the capacity is lowered because of dirt, etc., it is necessary to replace the air cleaning filter. Air cleaning filter replacement (about once every 4 months) Catech...

Page 11 - Swing the vertical vanes out one by one.; CLEANING THE AIR OUTLET AND FAN OF THE INDOOR UNIT; Before cleaning; Put the vertical vanes back to their original positions one by one.; After Cleaning

11 1 Manually tilt the horizontal vanes downward, and make sure the fan has stopped. 2 Remove the horizontal vanes. Be sure to hold each horizontal vane when unlocking the stoppers. Upper vane Follow procedures 1 to 3 to remove the upper vane. Lower vane Follow procedures 4 to 6 to remove the lower ...

Page 12 - WHEN YOU THINK THAT TROUBLE HAS OCCURRED; Question

12 BEFORE CONTACTING THE SERVICE REPRE-SENTATIVE, CHECK THE FOLLOWING AGAIN Question The air conditioner cannotbe operated for about 3 min-utes when restarted. Cracking sound is heard. The air from the indoor unitsmells strange. The fan of the outdoor unitdoes not rotate even thoughthe compressor is...

Page 13 - Guaranteed operating range

13 INSTALLATION, RELOCATION AND INSPECTION Installation place Avoid installing the air conditioner in the following places. • Where flammable gas could leak. CAUTION: Do not install the unit where flammable gas could leak.If gas leaks and collects around the unit, it may causean explosion. • Where t...

Mitsubishi MUZ-A12YVH- User Manual

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