USER’S MANUAL AIR-CONDITIONER ENGLISH SRRM25ZE/ZF-S SRRM35ZE/ZF-S SRRM50ZE/ZF-S SRRM60ZE/ZF-S This air conditioner complies with EMC Directive 89/336/EEC, LV Directive 73/23/EEC. 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.
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. An alternative refrigerant (R410A) is used in this air-conditioner.
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 Do not place a combustible insecticide or paint spray near the blower, nor aim it directly at the system. You should not expose any combustion appliance directly to the air stream of the air-conditioner. Do not wash the air-conditioner with water. This may result in a fire. The appliance may then work inadequately. This could cause an electric shock.
Choice of operations and features Choice of operations Page 9 HEAT COOL The unit draws in heat from the outside air, transfers it inside and heats the room. Cooling by extracting heat from the room. Page 9 DRY Page 9 AUTO Page 8 Automatic selection of operating mode. Drying by extracting damp from the room. The Auto mode automatically selects the operation mode (HEAT, COOL or DRY), depending on the room temperature when switched on.
Name of each part and its function INDOOR UNIT SRRM25ZE/ZF-S SRRM35ZE/ZF-S SRRM50ZE/ZF-S SRRM60ZE/ZF-S Air outlet Air blows out of here. Air filter Removes dust or dirt from the inlet air. Page 15 Air inlet Draws in the indoor air. Refrigerant piping connection electric flex Unit indication & operation section Remote control signal receiver Drain hose Drains water from the dehumidified air.
Unit indication section Remote control signal receiver RUN (HOT KEEP) light (green) • Illuminates during operation. • Blinks at air flow stop due to the ‘HOT KEEP’. Page 17 Unit ON/OFF button TIMER light (yellow) Illuminates during TIMER operation. In emergencies, this button can be used for turning on/off the unit when remote control is not available. HI POWER light (green) Illuminates during HIGH POWER operation. Page 12 ECONO light (orange) Illuminates during ECONOMY operation.
Operation and indication section for remote control Operation section FAN SPEED button OPERATION MODE select button Each time the button is pushed, the cator is switched over in turn. indi- Each time the button is pushed, the cator is switched over in turn. HI POWER button indi- ON/OFF button This button changes the HIGH POWER mode. Page 9 Press for starting operation, press again for stopping. AIR FLOW button ECONO button This button changes the flap mode.
AUTO mode operation procedure ■ Automatically selects the operation mode (HEAT, DRY, COOL) depending on the room temperature when switched on. Aim the remote control at the air-conditioner. 1 2 Press the ON/OFF button. When the unit is not in AUTO mode: Press MODE button. Move the [ mark] to the To stop: NOTE • Air is not blown out during the operation. Page 17 • Simultaneous automatic operation. Page 16 (Auto) position. Press the ON/OFF button.
COOL/HEAT/DRY mode operation procedure Aim the remote control at the air-conditioner. 1 2 Press the ON/OFF button. Press the MODE select button. Move the [ mark] to the desirable operation position. (Cool), 3 (Heat), (Dry) Press the TEMP button. 4 26°C~28°C 22°C~24°C DRY button for the desired temperature. HEAT COOL Press or Standard 21°C~24°C Press the FAN SPEED button Set the air flow rate as desired. To stop: NOTE Press the ON/OFF button.
Air flow direction adjustment procedure Adjusting up/down air flow direction ■ Air flow direction adjustment can not be performed, although a display will be changed if "AIR FLOW" button is pushed. Change to AIRFLOW mode. (Swing) (Air scroll) (Flap stopped) About FAN SPEED ■ You can choose the capacity of your air-conditioner when heating or cooling.
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. Page 12 Example: In the case you wish to bring the temperature to nearly set temperature in at AM 8:00. 1 Press the ON TIMER button. ON TIMER indicator 2 Press the “ or Each time the ON is blinking. ” button. button is pressed, the indicator is switched in the order of: AM 0:00 AM 0:10 Each time the AM 0:20 AM 1:00 ...
About TIMER operation ▼ ▼ About Amenity facilities In COOL operation (Stop) Operation starts Amenity facilities enable to start the operation a little earlier, so that the room approaches optimum temperature at ON time when the operation is started by ON-TIMER. • Mechanism The room temperature is checked 60 minutes before the timer is at ON. Depending on the temperature at that time, the operation starts 5 to 60 minutes before the timer is at ON.
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. 1 Remove back lid and take out old batteries. 2 Insert new batteries. (SUM-4 or R03x2) ■ When the indicator shows any abnormal condition, press the reset switch with the tip of a ballpoint pen. NOTE • Don't use old and new batteries together.
When the operation fails with the remote control • Are the batteries running down? Page 13 Replace the batteries with new ones and repeat the operation. • If the operation still fails, handle as per emergency run operation. Contact your dealer. Page 12 Operating hints ■ Please observe the following for the most economic and comfortable use of your unit. Set a suitable room temperature. Clean the filters frequently. Avoid direct sunlight and draught.
During the operational season Cleaning the air filter Please request cleaning of the air filter from special contractor. * The air filter that comes with the unit cannot be washed with water. 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.
About the Multiple Air-conditioner Simultaneous Operation • The air-conditioners cannot be in different operating modes at the same time, such as one unit being in the “Cool” mode and one unit being in the “Heat” mode. • When conducting different operations, the air-conditioner that was operated first will be given priority, so the air-conditioner that is operated after that will conduct air blowing operation.
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.
Characteristics of HEAT mode operation Mechanism and capacity of HEAT mode operation ■ Mechanism • The unit draws in heat from the cold outside air, transfers it indoors and heats the room. The heating capacity of the heat pump mechanism decreases when the outside air temperature gets colder. • The hot air circulation system takes a while before warming up the room temperature. • If the outside temperature becomes extremely low, it would be better to use an additional source of heating.
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 TIMER light ON Cause 1 time flash Heat exchanger sensor (1) error • Broken heat exchanger sensor (1) wire, poor connector connection • Disconnected sensor 2 time flash Room temperature sensor error • Broken room temperature sensor wire, poor connector connection 4 time flash Drain error • Drain at rev
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