Inverter multi-split system residential air-conditioners split system, air to air heat pump type outdoor indoor unit wall mounted/ceiling concealed/4-way ceiling cassette/ceiling suspended/duct connected-low/middle static pressure type (164 pages)
Summary of Contents for Mitsubishi Heavy Industries SKM20ZG-S
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USER’S MANUAL AIR-CONDITIONER ENGLISH MANUEL DE L’UTILISATEUR FRANÇAIS CLIMATISEUR ANWENDERHANDBUCH DEUTSCH KLIMAGERA ¨ T ISTRUZIONI PER L’USO ITALIANO SKM20ZG-S CONDIZIONATORE D’ARIA SKM22ZG-S SKM25ZG-S MANUAL DEL PROPIETARIO ESPAN ˜ OL SKM28ZG-S ACONDICIONADOR DE AIRE SKM35ZG-S SKM50ZG-S GEBRUIKERSHANDLEIDING NEDERLANDS AIRCONDITIONING MANUAL DO UTILIZADOR PORTUGUÊS...
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.
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”...
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Safety precautions CAUTION The system should only be used for its original purpose Do not place anything containing wa- Do not install the system at a place and not for anything else like, for instance, preservation of ter, like vases, on top of the unit. where the air stream of the blower is food, plants or animals, precision devices or works of art.
Name of each part and its function INDOOR UNIT SKM20ZG-S SKM28ZG-S Air Inlet panel SKM22ZG-S SKM35ZG-S Draws in the indoor air. SKM25ZG-S SKM50ZG-S Air filter Removes dust or dirt from the inlet air. Page 17 Air-cleaning filter Room temperature detector...
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Unit indication section SKM20ZG-S SKM25ZG-S SKM35ZG-S SKM22ZG-S SKM28ZG-S SKM50ZG-S TIMER light (yellow) HI POWER light (green) Illuminates during TIMER operation. Illuminates during HIGH POWER operation. RUN (HOT KEEP) light (green) 3D AUTO light (green) • Illuminates during operation. Illuminates during 3D AUTO operation.
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 I When inserting the batteries, the present time is automatically set to time setting mode. Example: Set to 10:30.
AUTO mode operation procedure I Automatically selects the operation mode (COOL, HEAT, DRY) depending on the room temperature when switched on. When the unit is not in AUTO mode: Press MODE button. Move the [ mark] to the (Auto) position. Aim the remote control at the air-conditioner.
COOL/HEAT/DRY/FAN mode operation procedure Aim the remote control at the air-conditioner. Press the MODE select button. Move the [ mark] to the desirable operation position. (Cool), (Heat), (Dry), (Fan) Press the ON/OFF button. Press the TEMP button. Press button for the desired temperature. Standard Press the FAN SPEED button Set the fan speed as desired.
Air flow direction adjustment procedure Adjusting air flow direction I Up/down direction can be adjusted with the AIRFLOW (UP/DOWN) button on the remote control. Each time when you press this button the mode changes as follows: Change to AIRFLOW (UP/DOWN) mode. (Flap stopped) (Swing) I Left/right direction can be adjusted with the AIRFLOW...
SLEEP operation procedure I 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 during heating.
ON-TIMER operation procedure I Operation starts 5 to 60 minutes before the time that is set so that the room temperature reaches the optimum temperature at that time. Page 12 ON-TIMER operation can be set regardless of whether the air-conditioner is running or not. Example: In the case you wish to bring the temperature to nearly set temperature in at 8:00.
PROGRAM TIMER operation procedure I 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.
HIGH POWER/ECONOMY operation procedure If the air-conditioner is not operating, aim the remote control at the air-conditioner. Press the ON/OFF button. Press the HI POWER/ECONO button. • When the operating mode is AUTO, COOL or HEAT Each time the HI POWER/ECONO button is pressed, the indicator is switched in the order of: No indication (HIGH POWER)
Operation program • OPERATION MODE : AUTO • FAN SPEED AUTO • AIR FLOW AUTO • Operation starts by pressing the unit ON/OFF button; it stops if you press the button again. SKM20ZG-S SKM28ZG-S SKM60ZG-S SKM22ZG-S SKM35ZG-S SKM71ZG-S SKM25ZG-S SKM50ZG-S...
Power blackout auto restart function I What is power blackout auto restart function? • Power blackout auto restart function is a function that records the operational status of the air-conditioner immediately prior to it being switched off by a power cut, and then automatically resumes operations at that point after the power has been restored. •...
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 Remove back lid and take out •...
Maintenance Before maintenance During the operational season Cleaning the air filter Standard interval is once every two week Turn off the power switch. Remove the air filter 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.
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Cooling/heating is affected by an air filter clogged up with dust etc., and the operation noise becomes louder. It may also NOTE use extra electricity. Please clean the air filter at appropriate intervals. At the end of the season At the beginning of the season Perform the fan operation for a half day.
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. •...
Please remember! Restarting has been blocked for 3 minutes after you have stopped or You cannot restart the unit immediately after you have after switching off the power during operation, to protect the unit. stopped it. (RUN light is on) Please wait for operating? three minutes.
When to contact your distributor without delay I Turn off the power switch immediately and inform your dealer in any of the following situations: The fuse or switch blows continu- The cable becomes extremely hot. ously. The covering of the cable is cracked. CAUTION Fuse often blows.
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: RUN light Description of trouble Cause • Broken heat exchanger sensor (1) wire, poor connector connection Heat exchanger sensor (1) error 1 time flash...
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AIR-CONDITIONING & REFRIGERATION SYSTEMS HEADQUARTERS 16-5, 2-Chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan Fax: (03) 6716-5926 MITSUBISHI HEAVY INDUSTRIES EUROPE, LTD. AIR-CONDITIONER DIVISION 3rd Floor Thavies Inn House 3-4 Holborn Circus London EC1N 2HA, ENGLAND Phone: 44(0)20 7842 8171 Fax: 44(0)20 7842 8104...
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