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Summary of Contents for Mitsubishi Heavy Industries SRF50ZSX-W
- Page 1 ORIGINAL INSTRUCTIONS USER’S MANUAL AIR-CONDITIONER SRF25ZS-W SRF35ZS-W SRF50ZSX-W RFB012A009F 202004...
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Page 3: Table Of Contents
Thank you for purchasing a MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. Air-Conditioner. To get the best long-lasting performance, please 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. -
Page 4: Safety Precautions
Safety precautions Before starting to use the system, please read these “Safety precautions” carefully to ensure proper operation of the system. When you have read this user’s manual, please keep it safely. If someone else takes over as user, make sure that the manual is also passed on to the new user. Indicates a potentially hazardous situation which, if not avoided, can WARNING result in serious consequences such as death or severe injury. - Page 5 ❚ Safety precautions ❚ INSTALLATION PRECAUTIONS WARNING The system is for domestic and residential use. If used in severe environments, such as an engineering workplace, the equipment may function poorly. The system must be installed by your dealer or a qualified installer. It is not advisable to install the system by yourself, as faulty handling may cause leakage of water, electric shock or fire.
- Page 6 ❚ Safety precautions ❚ OPERATION PRECAUTIONS WARNING Children shall not play with the Cleaning and user maintenance shall air-conditioner. not be made by children without supervision. Do not expose yourself to the cooling air for a long period. Do not insert anything into the air outlet.
- Page 7 ❚ Safety precautions CAUTION Do not touch the aluminum fins on the Do not shut off the power source heat exchanger. immediately after stopping the operation. It may result in injury. Do not place household electrical Wait at least 5 minutes, otherwise there appliances or household items under- is a risk of water leakage or breakdown.
- Page 8 ❚ Safety precautions ❚ PRECAUTIONS FOR RELOCATION OR REPAIRS WARNING Do not perform any repairs or modifications by yourself. Consult the dealer if the unit requires repair. If you repair or modify the unit, it can cause water leaks, electric shocks or fire. Consult your dealer for repairs.
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Page 9: Name Of Each Part And Its Function
Name of each part and its function INDOOR UNIT Upper air outlet Air blows out of here. Up/down air ow direction adjustment ap Page 15 Left/right air ow adjustment louver Page 15 Unit operation switch Air lnlet panel Draws the indoor air. Refrigerant piping connection and electric wire Drain hose Drains water from the indoor unit. - Page 10 Name of each part and its function Unit display section Unit ON/OFF button RUN (HOT KEEP) light (green) This button can be used for turning on/off the unit when • Illuminates during operation. remote control is not available. Page 9 •...
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Page 11: Remote Control Handling
Remote control handling Replacing the batteries The following cases show exhausted batteries. Replace old batteries with new ones. Receiving beep is not emitted when a signal is transmitted. Display fades away. NOTE Pull out the cover and take out old batteries. Do not use old and new batteries together. -
Page 12: Installing Two Air-Conditioners In The Same Room
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 one remote control. Set the remote control and indoor unit. Setting the remote control Setting an indoor unit Pull out the cover and take out bat- Turn off the power source, and turn it on after 1 minute. -
Page 13: Operation And Display Section For Remote Control
Operation and display section for remote control OPERATION MODE select button Transmission section Each time the button is pressed, the mode changes. ON/OFF (luminous) button Page 12,14 Press to start operation, press again to stop. TEMPERATURE button FAN SPEED button This button sets the room temperature. -
Page 14: Current Time Setting
Current time setting ■ When inserting the batteries, the current time is automatically set to time setting mode. Mon and 13:00 are displayed as the current time. Set a correct day of the week and a time. Example: Set to Sat 10:30. Press the TIME SET UP switch. -
Page 15: Temperature Adjustment During Auto
Temperature adjustment during AUTO ■ Default preset temperature during AUTO mode is 24 °C for both cooling and heating mode. However, it can be adjusted (Minimum 18 °C, Maximum 30 °C) using button or button. Press the “ or (TEMP)” button. When it is a little cold Press the button. -
Page 16: Cool/Heat/Dry/Fan Mode Operation
COOL/HEAT/DRY/FAN mode operation Press the MODE button. Set to a required mode. (COOL), (HEAT), (DRY), (FAN) Press the ON/OFF button. Press the TEMP button. Press button for the preferred temperature. Recommendation Press the FAN SPEED button. Set the fan speed as preferred. Air ow direction adjustment procedure. -
Page 17: Air Ow Direction Adjustment
Air ow direction adjustment Adjusting air ow direction ■ Up/down direction can be adjusted with the AIRFLOW U/D (UP/DOWN) button on the remote control. Every time you press this button the mode changes as follows: Change on AIRFLOW (UP/DOWN) mode. (Flap stopped) (Swing) NOTE... -
Page 18: Sleep Timer Operation
SLEEP TIMER operation ■ The unit will stop automatically after the set time lapses. The set temperature is automatically adjusted according to the lapse time in order to avoid too much cooling or heating. Page 18 Press the SLEEP button. ■... -
Page 19: On-Timer Operation
ON-TIMER operation ■ Operation starts 5 to 60 minutes before the set time so that the room temperature reaches the optimum temperature at the set time. Page 18 ON-TIMER operation can be set regardless of whether the air-conditioner is running or not. Example: When the preferred room temperature is required at 8:00. -
Page 20: On-Timer + Off-Timer Operation
ON-TIMER + OFF-TIMER operation ■ The timer operations of the combination of ON and OFF-TIMER. Example: Present time is 21:00. The air-conditioner running. When it is preferred to stop at 22:30, and then start operation at 8:00, near the set temperature. -
Page 21: Weekly Timer Operation
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 week are available. Once this has been set, the timer operation will be repeated at the same programs every week unless the WEEKLY TIMER is canceled. - Page 22 Setting mode <Individual setting> Set after setting the current day of the week and the time. Press the PROGRAM button. and current day of the week blink. Press the “ or (TIMER)” button. Select a day of the week to be reserved. Every time the button is pressed, the display is switched in the order of:...
- Page 23 Press the “ or (TIMER)” button. Set a time. Every time the button is pressed, the display is switched in the order of: 0:00 0:10 0:20 1:00 1:10 (Units of ten minutes) Every time the button is pressed, the display is switched in the order of: 0:00 23:50 23:40 23:00 22:50...
- Page 24 How to cancel the setting <Individual setting> Press the PROGRAM button. and current day of the week blink. Press the “ or (TIMER)” button. Select a day of the week to be canceled. Press the SET button. The day of the week is determined and the program number blinks. Press the “...
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Page 25: High Power/Economy Operation
HIGH POWER/ECONOMY operation 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 (HIGH POWER) (ECONOMY) (Normal operation) When the operating mode is DRY or ON-TIMER + OFF-TIMER Every time the HI/ECO button is pressed, the display is switched in the... -
Page 26: Night Setback Operation
NIGHT SETBACK operation ■ During the cold season, the room temperature can be maintained at a comfortable level during the absence, at night, and while the room is unattended. The air-conditioner maintains the constant temperature at about 10 °C. Press the NIGHT SETBACK button. Every time the NIGHT SETBACK button is pressed, the display is switched in the order of: No display... -
Page 27: Menu Function
MENU function ■ MENU function is used for setting SELF CLEAN operation and PRESET operation. Every time the MENU switch is pressed with the tip of a ballpoint pen, etc., the display is switched in order of: SELF CLEAN PRESET operation operation SELF CLEAN operation ■... -
Page 28: Preset Operation
PRESET operation ■ This operation can save the preferred setting for future operation. Select the PRESET operation by pressing the MENU switch. Select preferred OPERATION MODE, TEMPERATURE, FAN SPEED and AIR FLOW direction. Press the SET button. When air-conditioner is operating AUTO, COOL, HEAT, DRY, FAN and NIGHT SETBACK, press MODE button 3 seconds or more. -
Page 29: Air Outlet Selection
Air outlet selection ■ AIR SELECTION button can switch between the combination of upper and lower air outlets and upper air outlet. Not operable while the air-conditioner is OFF. Press the ON/OFF button on the remote control. Press the AIR SELECTION button on the unit display section. -
Page 30: Maintenance
Maintenance How to open, close the air inlet panel Removal, installation of air inlet panel Open Removal Place ngers at the recesses on both sides of the panel and pull down When removing the air inlet panel for internal cleaning or others, open the the panel forward so that it will be open by about 15 degrees. - Page 31 NOTE • Cooling/heating is affected by an air lter clogged up with dust etc., and the operation noise becomes louder. It may also use extra electricity. Please clean the air lter at appropriate intervals. At the beginning of the season At the end of the season Ensure that the earth wiring is not snapped Perform the fan operation for 2 to 3 hours.
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Page 32: Proper Installation
Proper installation Suitable installation position • Do not put any obstruction in front of the indoor unit, preventing proper ventilation and functioning. • Do not install the unit in any of the following places: • Where there is a danger of leaking ammable gases. •... -
Page 33: Notice
Notice Air ow Air ow is not blown out when starting the HEATING Air ow has stopped to prevent blowing out of cold air until the operation. indoor heat exchanger has warmed up. (2 to 5 min.) (HOT KEEP program) RUN light blinks slowly (1.5 sec ON, 0.5 sec OFF) Air ow is not blown out for 5 to 15 min. -
Page 34: Contact Your Dealer
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- The cable becomes extremely hot. ously. The covering of the cable is cracked. CAUTION Fuse often blows. -
Page 35: Self Diagnosis Function
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 Heat exchanger sensor 1 error 1-time flash connection... -
Page 36: Dred (For Australia)
DRED (For Australia) ■ This air-conditioner complies with the DRED (Demand Response Enabling Devices) standard AS/NZS4755.3.1 and supports demand response modes 1, 2, and 3 (DRM1, 2, and 3). Since the air-conditioner limits the electric power or energy by receiving the DRED input signal, the sense of cooling operation or heating operation may deteriorate over time. - Page 37 5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET, United Kingdom Tel : +44-333-207-4072 Fax: +44-333-207-4089 http://www.mhiae.com/ MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONERS AUSTRALIA, PTY. LTD. Block E, 391 Park Road, Regents Park, NSW, 2143 PO BOX 3167, Regents Park, NSW, 2143 Tel : +61-2-8774-7500 Fax: +61-2-8774-7501...
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