SPLIT-TYPE AIR CONDITIONERS OPERATING INSTRUCTIONS INDOOR UNIT MSZ-A09YV MSZ-A12YV OPERATING INSTRUCTIONS For customers To use this unit correctly and safely, be sure to read this operating instructions before use.
CONTENTS SAFETY PRECAUTIONS ........................................................................................................................................................ 2 NAME OF EACH PART ............................................................................................................................................................ 3 PREPARATION BEFORE OPERATION ...........................................................................................................................
SAFETY PRECAUTIONS CAUTION 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. When the unit is to be cleaned, switch it off and disconnect the power supply plug or turn off the breaker.
NAME OF EACH PART PREPARATION BEFORE OPERATION Remote controller Auto restart function ■ Signal transmitting section Auto restart function is ... When the indoor unit is controlled with the remote controller, the operation mode, the set temperature and the fan speed are stored in the memory.
PREPARATION BEFORE OPERATION Remote controller How to set the batteries and the current time 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. Insert the minus pole of the batteries first. 2 Press the RESET button. Handling of the remote controller • The range that the signal can reach is about 6 m when the remote controller is pointed at the front of the indoor unit.
I FEEL... AUTO OPERATION With the “ (I FEEL...)” auto operation mode, the optimum room condition can be set automatically with a one-touch operation. Description of “I FEEL...” mode Details of operation To start operation: ˚C ■ CLOCK AMPM TOO COOL FAN STOP button. When the “ (I FEEL...)” mode is selected, the air conditioner is automatically controlled at the optimum temperature.
AUTO CHANGEOVER... AUTO MODE OPERATION MANUAL OPERATION (COOL, DRY, HEAT) An automatic cooling and heating changeover operation system ensures easy control and year-round air conditioning. Once the desired temperature is set, unit operation is switched automatically between cooling and heating according to the room temperature. In addition, fan control of the outdoor unit enables cooling operation at outside temperature as low as -10 °C.
AIR FLOW VELOCITY AND DIRECTION ADJUSTMENT ECONO COOL OPERATION AIR FLOW velocity and direction can be selected as required. Use this operation when you want to be comfortable in COOL mode even with energy saved. ■ To change the AIR FLOW velocity, press the FAN button. Perform the following operations while the unit is operating in the MANUAL COOL mode. Each time the button is pressed, the fan speed is changed in sequence: (Low) → (Med.
WHEN THE AIR CONDITIONER IS NOT GOING TO BE USED FOR A LONG TIME When it is not going to be used for a long time: 1 Perform the FAN operation for 3 or 4 hours to dry the inside of the air conditioner. • To perform FAN operation, set the remote controller to the highest temperature in the MANUAL COOL mode. (Refer to page 7.) 2 When the air conditioner is to be used again: 1 2 3 3 Remove the batteries from the remote controller.
CLEANING THE CATECHIN AIR FILTER Cleaning the catechin air filter (about once every 2 weeks) 1 3 Remove the catechin air filter. Open the front panel, then remove/replace the filter. Catechin air filter After washing with water/lukewarm water, dry the catechin air filter well in the shade. • Do not expose the catechin air filter to direct sunlight or heat from a fire when drying it. REPLACEMENT OF THE AIR CLEANING FILTER When the capacity is lowered because of dirt, etc.
CLEANING THE AIR OUTLET AND FAN OF THE INDOOR UNIT 4 Before cleaning Clean the air outlet and fan of the indoor unit. (Make sure the fan has stopped.) Switch the indoor unit off with the remote controller and disconnect the power supply plug and/or turn off the breaker, otherwise you may get injured since the fan of the indoor unit rotates at high speed during operation. 1 • Be careful not to injure your hands.
BEFORE CONTACTING THE SERVICE REPRESENTATIVE, CHECK THE FOLLOWING AGAIN Question Check points The air conditioner cannot • Is the breaker turned on? • Is the fuse blown? be operated. • Is the ON timer set? (Page 8) Both of the operation indi- • Is the horizontal vane attached to the indoor unit correctly? (Page 11) cator lamps on the indoor unit are blinking. The horizontal vane does • Are the horizontal vane and the vertical vane attached to the indoor unit correctly? (Page 11) not move.
INSTALLATION, RELOCATION AND INSPECTION Installation place Avoid installing the air conditioner in the following places. • Where flammable gas could leak. Inverter-type fluorescent lamp To prevent the effects of a fluorescent lamp, keep as far apart as possible. CAUTION: Do not install the unit where flammable gas could leak. If gas leaks and collects around the unit, it may cause an explosion. • Where there is much machine oil. • Salty places such as the seaside.
This product is designed and intended for use in the residential, commercial and light-industrial environment. The product at hand is based on the following EU regulations: • Low Voltage Directive 73/23/ EEC • Electromagnetic Compatibility Directive 89/336/ EEC HEAD OFFICE: MITSUBISHI DENKI BLDG.
