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AIR CONDITIONER Duct Type HƯỚNG DẪN VẬN HÀNH BUKU PANDUAN PENGOPERASIAN English OPERATING MANUAL ไทย Indonesia Việt คูมือการใชงาน KEEP THIS MANUAL FOR FUTURE REFERENCE VUI LÒNG GIỮ LẠI SÁCH HƯỚNG DẪN NÀY ĐỂ THAM KHẢO TRONG TƯƠNG LAI SIMPAN PANDUAN INI UNTUK REFERENSI MENDATANG เก็บคูมือฉบับนี้ไวสําหรับใชอางอิงในภายหลัง PART No. 9374379781-03 9374379781-03_OM.indb 1 8/6/2018 2:37:27 PM OPERATING MANUAL Duct Type PART No. 9374379781-03 CONTENTS TEMPERATURE SET BACK TIMER ....................... 9 ECONOMY OPERATION ...................................... 10 SENSOR SETTING ............................................... 10 CLEANING AND CARE ..........................................11 TROUBLESHOOTING .......................................... 12 OPERATING TIPS................................................. 13 SELF-DIAGNOSIS ................................................ 15 SAFETY PRECAUTIONS........................................ 1 FEATURES AND FUNCTIONS ............................... 2 NAME OF PARTS ................................................... 3 PREPARATORY OPERATION ................................ 4 OPERATION............................................................ 5 TIMER FUNCTIONS ............................................... 6 ON/OFF TIMER ....................................................... 6 WEEKLY TIMER ...................................................... 7 SAFETY PRECAUTIONS To prevent personal injury to others, or property damage, read this section carefully before you use this product, and be sure to comply following safety precautions. Incorrect operation due to failure to follow the instructions may cause harm or damage, the seriousness of which is classified as follows: WARNING CAUTION This mark warns of death or serious injury. This mark warns of injury or damage to property. This mark denotes an action that is COMPULSORY. This mark denotes an action that is PROHIBITED. WARNING This product contains no user-serviceable parts. Always consult authorized service personnel for repairing, installation, and relocation of this product. Improper installation or handling will cause leakage, electric shock, or fire. In the event of a malfunction such as burning smell, immediately stop operation of the air conditioner, and disconnect all the power supply by turning off the electrical breaker or disconnecting the power plug. Then consult authorized service personnel. Take care not to damage the power supply cable. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. In the event of refrigerant leakage, be sure to keep away from fire or any flammables, and consult authorized service personnel. If you see lightning or hear thunder, there might be a lightning strike. To prevent electric shock hazard, turn off the air conditioner by using the remote controller, and do not touch this product or the power plug during thunderstorm. Do not install this product in area filled with mineral oil such as a factory or area containing a large amount of splashed oil or steam such as a kitchen. Do not start or stop the operation of this product by inserting or pulling out the power plug, or by turning on or off the circuit breaker. Do not use inflammable gases near this product. Do not expose yourself directly to the cooling airflow for many hours. Do not insert your fingers or any other objects into outlet port or inlet port. Do not operate with wet hands. CAUTION Provide occasional ventilation during use. Always operate this product with air filters installed. Ensure that any electronic equipment is at least 1 meter away from either this product. Turn off power source when not using this product for extended periods. After long period of use, check whether the installation stand does not deteriorate to prevent this product from falling down. The airflow direction and the room temperature should be carefully considered when you use this product in a room with infants, children, elderly or sick persons. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. Keep clean and tidy around the outdoor unit, and do not place the things around it. If it is covered with fallen leaves, there could be an infiltration of small animals or insects whose contact with the internal electrical components leads to the product malfunction. Do not direct the airflow at fireplaces or heating apparatus. Do not block or cover the inlet port and the outlet port. Do not apply any heavy pressure to radiator fins. Do not climb on, place objects on, or hang objects from this product. Do not place vase or water container on this product. Do not place any other electrical products or household belongings under this product. Dripping condensation from this product might get them wet, and may cause damage or malfunction of your property. Do not expose this product directly to water. Do not use this product for preservation of food, plants, animals, precision equipment, art work, or other objects. This may cause quality deterioration of those items. Do not expose animals or plants to the direct airflow. Do not drink the drainage from the air conditioner. Do not pull the power supply cable. Do not touch the aluminum fins of heat exchanger built-in this product to avoid personal injury when you install or maintain the unit. Do not stand on unstable steps when operating or cleaning this product. It may overturn and can cause the injury. En-1 9374379781-03_OM.indb Sec1:1 8/6/2018 2:37:27 PM FEATURES AND FUNCTIONS ■ Energy saving and Comfortable function ■ Clean function INVERTER REMOVABLE AIR FILTER At the start of operation, large amount of power is used to bring the room quickly to the desired temperature. Afterwards, the unit automatically switches to a low power setting for economic and comfortable operation. The indoor unit’s air filter can be removed for easy cleaning and maintenance. ECONOMY OPERATION When ECONOMY operation mode is operated, the room temperature will be little higher than the set-temp under cooling mode and lower than set-temp under heating mode. Therefore, the ECONOMY mode is able to save more energy than other normal mode. SUPER QUIET OPERATION When the FAN button is used to select QUIET, the indoor unit begins super quiet operation; the indoor unit’s airflow is reduced to produce quieter operation. AUTO CHANGEOVER The operation mode (cooling, dry, heating) is switched automatically to maintain the set temperature, and the temperature is kept constant at all times. ■ Convenient function ■ Remote controller WIRED REMOTE CONTROLLER The wired remote controller allows convenient control of indoor unit operation. WIRELESS REMOTE CONTROLLER (OPTION) The optional wireless remote controller can be used.When you use remote controller, there are following different points as compared with using wired remote controller. [ The additional function for wireless ones ] • SLEEP timer • TIMER • 10°C HEAT operation And you can use both wireless and wired remote controller simultaneously. (But function is limited.) [ The restricted functions for wired ones ] • Weekly timer • Temperature set back timer WEEKLY TIMER Use this timer function to set operating times for each day of the week. Use the DAY OFF setting to switch off timed operation for a selected day in the coming week. Because all days can be set together, the weekly timer can be used to repeat the timer settings for all of the days. TEMPERATURE SET BACK TIMER Use this timer function to change the set temperature in the operation times set for each day of the week. This can be used together with other timer settings. En-2 9374379781-03_OM.indb Sec1:2 8/6/2018 2:37:27 PM NAME OF PARTS Remote controller 1 2 3 4 5 6 7 8 9 0 A B START/STOP button SET TEMP. (temperature) button MODE button FAN button ECONOMY button TIMER MODE (CLOCK ADJUST) button DAY (DAY OFF) button SET BACK button SET TIME ( < > ) button TIMER DELETE button TIMER SET button Vertical airflow direction and Swing button*1 C Horizontal airflow direction and Swing button*2 D MAINTENANCE(FILTER RESET) button#1 E Operation lamp F Timer and Clock indicator G Operation mode indicator H Fan speed indicator I Operation lock indicator J Temperature indicator K Function indicator Defrost indicator Thermo sensor indicator ECONOMY indicator Vertical swing indicator*3 Filter indicator#1 *1~3 These functions cannot be used. (Please also see the operating manual of the option when using it with options, etc.) #1 Can be used if set correctly during installation. Please consult authorized service personnel when using this function. En-3 9374379781-03_OM.indb Sec1:3 8/6/2018 2:37:27 PM PREPARATORY OPERATION Set the current day and time 1 2 Press the TIMER MODE (CLOCK ADJUST) button for 2 seconds or more. The time indicator on the remote controller will flash. 3 Press the DAY button and select the current day. appears around the selected day. A SU MO TU WE TH FR SA Press the SET TIME (< >) buttons to set the current time. Press repeatedly to adjust the current time in 1-minute increments. Press and hold to adjust the current time in 10-minute increments. SU MO TU WE TH FR SA ex. Monday PM11:00 4 SET BACK SU MO TU WE TH FR SA Press the SET BACK button to switch between the 12- and 24-hour time displays. SU MO TU WE TH FR SA 5 Press again to end. En-4 9374379781-03_OM.indb Sec1:4 8/6/2018 2:37:27 PM OPERATION Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). To start/stop operation Press the START/STOP button. Operation lamp Air conditioner ON: Lit brightly Air conditioner OFF: Not lit To set the operation mode ● Operation mode setting Press the MODE button to set the operation mode. If DRY is selected, the fan speed will be set to AUTO. AUTO ● Room temperature setting Lower ● Rise Fan speed setting COOL DRY FAN HEAT* Press the SET TEMP. buttons to set the room temperature. Temperature setting range AUTO ............................................... 18 to 30 °C COOL/DRY ...................................... 18 to 30 °C HEAT* .............................................. 16 to 30 °C Press the FAN button to set the fan speed. AUTO HIGH MED LOW QUIET ECONOMY operation Press the ECONOMY button to start or stop ECONOMY operation. For details on the function, refer to page 10 . Child lock function Press the DAY (DAY OFF) button and TIMER SET button simultaneously for 2 seconds or more to activate the child lock function and lock all of the buttons on the remote controller. Press the buttons again for 2 seconds or more to deactivate the child lock function. When the child lock function is activated, the mark appears. If any button is pressed during the child lock, the CL indicator flashes. En-5 9374379781-03_OM.indb Sec1:5 8/6/2018 2:37:27 PM TIMER FUNCTIONS OFF timer (See page 6.) Use this timer function to stop air conditioner operation. The timer operates and air conditioner operation stops after the set time has passed. The timer can be set up to 24 hours in advance. ON timer (See page 6.) Use this timer function to start air conditioner operation. The timer operates and air conditioner operation starts after the set time has passed. The timer can be set up to 24 hours in advance. WEEKLY timer (See page 7.) Use this timer function to set operating times for each day of the week. Use the DAY OFF setting to switch off timed operation for a selected day in the coming week. Because all days can be set together, the weekly timer can be used to repeat the timer settings for all of the days. Temperature SET BACK timer (See page 9.) Use this timer function to change the set temperature in the operation times set for each day of the week. This can be used together with other timer settings. ON/OFF TIMER Note: In simultaneous multi connection, this function by using the wireless remote controller cannot be used. To set the ON/OFF timer 1 Press the TIMER MODE button to select the ON timer or OFF timer. 2 SU MO TU WE TH FR SA From 1 to 24 hours No indicator NON STOP ● OFF TIMER ON TIMER WEEKLY TIMER ex. OFF timer set for 6 hours Press the SET TIME (< >) buttons to set the time. After the time is set, the timer will start automatically. The amount of time until the OFF timer operates that is displayed on the timer indicator decreases as time passes. To cancel • Press the TIMER DELETE button to cancel the timer mode. • The timer mode can also be canceled by changing the timer mode using the TIMER MODE button. En-6 9374379781-03_OM.indb Sec1:6 8/6/2018 2:37:27 PM WEEKLY TIMER Note: In simultaneous multi connection, this function by using the wireless remote controller cannot be used. Weekly timer setting 1 2 Press the TIMER SET button for 2 seconds or more. Press the TIMER MODE button to select the weekly timer. 3 ● Day of the week setting ALL SU MO TU WE TH FR SA 2 1 Press the DAY button to select the day of the week, and then press the TIMER SET button to confirm the setting. For ALL, all of the days can be set together when a appears around each day. 4 ● Time setting When the operating time is set, the mark appears. ON-1 3 2 1 OFF-1 ON-2 OFF-2 ex. The timer is set for 7:00-18:00. Press the SET TIME (< >) buttons to set the time, and then press the TIMER SET button to confirm the setting and proceed to the next ON or OFF time setting. Up to 2 times ON and OFF times can be set per day. Press the DAY button to complete the time setting and return to the day of the week setting. 5 ● To delete the operating time If the TIMER DELETE button is pressed dur- 3 4 ing steps or , the operating time for the selected day will be deleted. If all the days are selected, the operating times for all of the days will be deleted. 3 4 Repeat steps and . To complete the weekly timer settings, press the TIMER SET button for 2 seconds or more. NOTES • The operating time can be set in 30-minute increments only. • The OFF time can be carried over to the next day. • The ON timer and the OFF timer functions cannot be set using the weekly timer. Both an ON and OFF time must be set. En-7 9374379781-03_OM.indb Sec1:7 8/6/2018 2:37:28 PM WEEKLY TIMER Note: In simultaneous multi connection, this function by using the wireless remote controller cannot be used. WEEKLY timer operation ● To start ● When the weekly timer is selected, the timer starts automatically. To cancel • Press the TIMER DELETE button to cancel the timer mode. • The timer mode can also be canceled by changing the timer mode using the TIMER MODE button. ex. Operating time 7:00-18:00 The operating time for the current day is displayed. To set the DAY OFF (for a holiday) 1 2 3 4 During the weekly timer, press the TIMER SET button for 2 seconds or more to set the day. Select the day to set the DAY OFF. Press the DAY (DAY OFF) button for 2 seconds or more to set the DAY OFF. Press the TIMER SET button for 2 seconds or more to complete the DAY OFF setting. SU MO TU WE TH FR SA SU MO TU WE TH FR SA The mark flashes under a day of the week. ● 3 6 9 12 15 18 21 3 6 9 12 15 18 21 ex. The DAY OFF is set for Monday. To cancel Follow the same procedures as those for setup. NOTES • The DAY OFF setting is only available for days for which weekly settings already exist. • If the operating time carries over to the next day (during a next day setting), the effective DAY OFF range will be set as shown below. ● Normal ● Next day setting DAY OFF ON OFF WEEKLY Preceding day ON DAY OFF OFF ON WEEKLY OFF WEEKLY Setting day Next day Preceding day OFF ON WEEKLY Setting day Next day • The DAY OFF setting can only be set 1 time. The DAY OFF setting is cancelled automatically after the set day has passed. En-8 9374379781-03_OM.indb Sec1:8 8/6/2018 2:37:28 PM TEMPERATURE SET BACK TIMER Note: In simultaneous multi connection, this function by using the wireless remote controller cannot be used. Temperature SET BACK timer setting 1 SET BACK 2 If there is no existing SET BACK temperature setting, “- -” will be displayed for the temperature. Press the TIMER SET button for 2 seconds or more. Press the SET BACK button to change to the SET BACK confirmation display. The SET BACK operating time and the set temperature will be displayed. 3 ● Day setting 1 ● Operating time setting 2 4 3 ex. When setting all days together Follow the same procedures to set the operating time as those for the weekly timer. The TIMER DELETE button is also used as described in the procedures for the weekly timer. 4 ● Temperature setting Press the SET TEMP. buttons to set the temperature. (The temperature setting range is the same as the range for the operation mode.) 5 3 ex. Operating time 15:00–22:00 ON SET BACK temperature Normal temperature 28°C 24°C 4 Repeat steps and . Press the TIMER SET button for 2 seconds or more to complete the temperature SET BACK timer settings. OFF 24°C Temperature SET BACK timer operation ● To start ● To cancel SET BACK 1 ex. Display during SET BACK timer operation (The operating time will not be displayed.) Press the SET BACK button. The SET BACK confirmation display appears for 5 seconds, and then the timer starts automatically. 2 Press the SET BACK button, and then press the TIMER DELETE button while the SET BACK confirmation display is displayed. Even if the SET BACK button is pressed again, the SET BACK timer will be cancelled. NOTES • • • • The SET BACK timer only changes the set temperature, it cannot be used to start or stop air conditioner operation. The SET BACK timer can be set to operate up to 2 times per day but only 1 temperature setting can be used. The SET BACK timer can be used together with the ON, OFF, and weekly timer functions. The SET BACK operating time is displayed only in the SET BACK confirmation display. (Refer to step 1 for the SET BACK confirmation display.) En-9 9374379781-03_OM.indb Sec1:9 8/6/2018 2:37:28 PM ECONOMY OPERATION Begin air conditioner operation before performing this procedure. To Use the ECONOMY Operation Press the ECONOMY button. The ECONOMY indicator will light. ECONOMY operation begins. To Stop the ECONOMY Operation Press the ECONOMY button again. The ECONOMY indicator will go out. Normal operation begins. About ECONOMY Operation At the maximum output, ECONOMY operation is approximately 70% of normal air conditioner operation for cooling and heating. ● If the room is not cooled (or heated) well during ECONOMY operation, select normal operation. ● During the monitor period in the AUTO mode, the air conditioner operation will not change to ECONOMY operation even if ECONOMY operation is selected by pressing the ECONOMY operation button. ● When ECONOMY operation mode is operated, the room temperature will be little higher than the set-temp under cooling mode and lower than set-temp under heating mode. Therefore, the ECONOMY mode is able to save more energy than other normal mode. SENSOR SETTING Room temperature sensor selection • This function is locked at the factory. In order to detect the room temperature correctly, consult authorized service personnel when using this function. Indoor unit Press the ECONOMY button for more than 2 seconds to select whether the room temperature is detected at the indoor unit or the remote controller. When the thermo sensor indicator appears, the room temperature is detected at the remote controller. NOTES • If this function is locked, the location where the room temperature is detected cannot be changed and the when the ECONOMY button is pushed for 2 seconds or more. mark flashes En-10 9374379781-03_OM.indb Sec1:10 8/6/2018 2:37:28 PM CLEANING AND CARE CAUTION ● Before cleaning the unit, be sure to stop the unit and disconnect the power supply. ● Turn off the electrical breaker. ● A fan operates at high speed inside the unit, and personal injury could result. ● When used for extended periods, the unit may accumulate dirt inside, reducing its performance. We recommend that the unit be inspected regularly, in addition to your own cleaning and care. For more information, consult authorized service personnel. ● When cleaning the unit’s body, do not use water hotter than 40°C, harsh abrasive cleansers, or volatile agents like benzene or thinner. ● Do not expose the unit body to liquid insecticides or hair sprays. ● If the unit will not be operated for a period of 1 month or more, be sure to allow the inner parts of the unit to dry thoroughly, in advance, by operating the unit in fan mode for half a day. Cleaning the Air Filter Remove the dust from the air filters by vacuuming or washing them. After washing, allow the air filters to dry thoroughly in an area protected from sunlight. ● Dust can be cleaned from the air filter either with a vacuum cleaner, or by washing the filter in a solution of mild detergent and warm water. If you wash the filter, be sure to allow it to dry thoroughly in a shady place before reinstalling. ● ● If dirt is allowed to accumulate on the air filter, air flow will be reduced, lowering operating efficiency and increasing noise. Filter indicator Reset (A special setting) ● Can tion. be used if set correctly during installation. Please consult authorized service personnel when using this func- • It lights on when it is time to clean the air filters. After turning the power on. Press the MAINTENANCE button for 2 seconds or more on the remote control. The filter indicator will disappear. En-11 9374379781-03_OM.indb Sec1:11 8/6/2018 2:37:28 PM TROUBLESHOOTING Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the electrical breaker, and consult authorized service personnel. Merely turning off the unit’s power switch will not completely disconnect the unit from the power source. Always be sure to turn off the electrical breaker to ensure that power is completely off. Before requesting service, perform the following checks: WARNING Symptom NORMAL FUNCTION Does not operate immediately: Noise is heard: Problem If the unit is stopped and then immediately started again, the compressor will not operate for about 3 minutes, in order to prevent fuse blowouts. ● Whenever the electrical breaker is turned off then on again, the protection circuit will operate for about 3 minutes, preventing unit operation during that period. — During operation and immediately after stopping the unit, the sound of water flowing in the air conditioner’s piping may be heard. Also, noise may be particularly noticeable for about 2 to 3 minutes after starting operation (sound of coolant flowing). — ● ● *● During heating operation, a sizzling sound may be heard occasionally. This sound is produced by the automatic defrosting operation. Smells: Mist or steam are emitted: Airflow is weak or stops: Water is produced from the outdoor unit: See Page 13 ● Some smell may be emitted from the indoor unit. This smell is the result of room smells (furniture, tobacco, etc.) which have been taken into the air conditioner. — ● During cooling or dry operation, a thin mist may be seen emitted from the indoor unit. This results from the sudden cooling of room air by the air emitted from the air conditioner, resulting in condensation and misting. — *● During heating operation, the outdoor unit’s fan may stop, and steam may be seen rising from the unit. This is due to the automatic defrosting operation. 13 *● When heating operation is started, fan speed is temporarily very low, to allow internal parts to warm up. *● During heating operation, if the room temperature rises above the thermostat setting, the outdoor unit will stop, and the indoor unit will operate at very low fan speed. If you wish to warm the room further, set the thermostat to a higher setting. — *● During heating operation, the unit will temporarily stop operation (between 4 and 15 minutes) as the automatic defrosting mode operates. During the automatic defrosting operation, will be shown on the remote controller display. 13 ● The fan may operate at very low speed during dry operation or when the unit is monitoring the room’s temperature. — ● During QUIET operation, the fan will operate at very low speed. — ● In the monitor AUTO operation, the fan will operate at very low speed. — *● During heating operation, water may be produced from the outdoor unit due to the automatic defrosting operation. 13 The FILTER indicator blinks: ● Clean the filter. Afterwards, turn the FILTER indicator off. 11 thermo sensor display on the remote controller is flashing: ● The room temperature sensor may be malfunctioning. Please consult authorized service personnel. — En-12 9374379781-03_OM.indb Sec1:12 8/6/2018 2:37:28 PM TROUBLESHOOTING Symptom CHECK ONCE MORE Does not operate at all: Poor cooling (or heating*) performance: Problem ● ● ● Has the circuit breaker been turned off? Has there been a power failure? Has a fuse blown out, or a circuit breaker been tripped? ● Is the timer operating? ● Is the air filter dirty? ● Are the air conditioner’s intake grille or outlet port blocked? ● Did you adjust the room temperature settings (thermostat) correctly? ● Is there a window or door open? ● In the case of cooling operation, is a window allowing bright sunlight to enter? (Close the curtains.) ● In the case of cooling operation, are there heating apparatus and computers inside the room, or are there too many people in the room? ● Is the unit set for QUIET operation? See Page — 6 to 9 — — If the problem persists after performing these checks, or if you notice burning smells, stop operation immediately, turn off electric breaker, and consult with authorized service personnel. OPERATING TIPS Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). Heating Performance* ● ● This air conditioner operates on the heat-pump principle, absorbing heat from outdoor air and transferring that heat indoors. As a result, the operating performance is reduced as outdoor air temperature drops. If you feel that insufficient heating performance is being produced, we recommend you use this air conditioner in conjunction with another type of heating appliance. Heat-pump air conditioners heat your entire room by recirculating air throughout the room, with the result that some time may be required after first starting the air conditioner until the room is heated. When Indoor and Outdoor Temperature are High* When both indoor and outdoor temperatures are high during use of the heating mode, the outdoor unit’s fan may stop at times. Low Ambient Cooling When the outdoor temperature drops, the outdoor unit’s fans may switch to Low Speed, or one of the fans may stop intermittently. Microcomputer-controlled Automatic Defrosting* ● When using the heating mode under conditions of low outdoor temperature and high humidity, frost may form on the outdoor unit, resulting in reduced operating performance. In order to prevent this kind of reduced performance, this unit is equipped with a microcomputer-controlled automatic defrosting function. During the defrost cycle, the indoor fan will shutdown and will be displayed on the remote controller. It will take anywhere from 4 to 15 minutes before the air conditioner starts up again. ● After heating operation stops, if frost forms on the outdoor unit, the unit will start Automatic Defrosting operation. At this time, the outdoor unit will automatically stop after operating for a few minutes. Dual Remote Controllers (optional) An additional remote controller can be added up to the maximum of 2 remote controllers. Either remote controller can control the air conditioner. However, the timer functions cannot be used at the secondary unit. Group Control 1 remote controller can control up to 16 air conditioners. All of the air conditioners will be operated with the same settings. Group control cannot be used when using it by the multi type. En-13 9374379781-03_OM.indb Sec1:13 8/6/2018 2:37:28 PM OPERATING TIPS Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle). Mode Operation AUTO (in COOLING model): ● When AUTO (automatic changeover) operation first selected, the fan will operate at very low speed for about a few minutes, during which time the indoor unit detects the room conditions and selects the proper mode. Room temperature is higher than the defined temperature in temperature setting → Cooling mode or dry mode Room temperature is close to or lower than the defined temperature in temperature setting → Monitor operation Cooling mode or Dry mode Defined temperature in temperature setting Monitor operation ● When the indoor unit has adjusted your room’s temperature to near the temperature setting, it will begin monitor operation. In the monitor operation mode, the fan will operate at low speed. If the room temperature subsequently changes, the indoor unit will once again select the appropriate operation (cooling) to adjust the temperature to the value set in the temperature setting. ● If the mode automatically selected by the unit is not what you wish, select one of the mode operation (COOL, DRY, FAN). AUTO [in HEAT & COOL (Reverse Cycle) model]: ● When AUTO (automatic changeover) is selected, the air conditioner selects the appropriate operation mode (cooling or heating) according to your room’s present temperature. ● When AUTO (automatic changeover) operation first selected, the fan will operate at low speed for about a few minute, during which time the indoor unit detects the room conditions and selects the proper operation mode. Room temperature is higher than the defined temperature in temperature setting → Cooling mode or dry mode Room temperature is close to the defined temperature in temperature setting → Determined by outdoor temperature Room temperature is lower than the defined temperature in temperature setting → Heating mode Cooling or Dry Defined temperature in temperature setting Determined by outdoor temperature Heating ● When the air conditioner has adjusted your room’s temperature to near the thermostat setting, it will begin monitor operation. In the monitor operation mode, the fan will operate at low speed. If the room temperature subsequently changes, the air conditioner will once again select the appropriate operation (heating, cooling) to adjust the temperature to the value set in the thermostat. ● If the mode automatically selected by the unit is not what you wish, select one of the mode operation (HEAT, COOL, DRY, FAN). HEAT *: ● Use to warm your room. ● When heating mode is selected, the air conditioner will operate at very low fan speed for about 3 to 5 minutes, after which it will switch to the selected fan setting. This period of time is provided to allow the indoor unit to warm up before beginning full operation. ● When the room temperature is very low, frost may form on the outside unit, and its performance may be reduced. In order to remove such frost, the unit will automatically enter the defrost cycle from time to time. During automatic defrosting operation, the heat operation will be interrupted. ● After the start of heating operation, it takes sometime before the room gets warmer. COOL: ● Use to cool your room. ● Use for gently cooling while dehumidifying your room. DRY: ● You cannot heat the room during dry mode. ● During dry mode, the unit will operate at low speed; in order to adjust room humidity, the indoor unit’s fan may stop from time to time. Also, the fan may operate at very low speed when adjusting room humidity. ● The fan speed cannot be changed manually when dry mode has been selected. ● Use to circulate the air throughout your room. FAN: During heating mode: Set the thermostat to a temperature setting that is higher than the current room temperature. The heating mode will not operate if the thermostat is set lower than the actual room temperature. During cooling/dry mode: Set the thermostat to a temperature setting that is lower than the current room temperature. The cooling and dry modes will not operate if the thermostat is set higher than the actual room temperature (in cooling mode, the fan alone will operate). During fan mode: You can not use the unit to heat and cool your room. En-14 9374379781-03_OM.indb Sec1:14 8/6/2018 2:37:28 PM OPERATING TIPS Instructions relating to inverter (❖) are applicable only to “INVERTER MODEL”. AUTO Restart In Event of Power Interruption ● Should the power supply to the air conditioner be interrupted by a power failure, the air conditioner will restart automatically in the previously selected mode once the power is restored. ● Use of other electrical appliances (electric shaver, etc.) or nearby use of a wireless radio transmitter may cause the air conditioner to malfunction. In this event, temporarily disconnect the power supply, reconnect it, and then use the remote controller to resume operation. Notices *● During use of the heating mode, the outdoor unit will occasionally commence the defrost operation for brief periods. During the defrosting operation, if the user sets the indoor unit for heating again, the defrosting mode will continue, and the heating operation will begin after completion of defrosting, with the result that some time may be required before warm air is emitted. *● During use of the heating mode, the top of the indoor unit may become warm, but this is due to the fact that coolant is circulated through the indoor unit even when it is stopped; it is not a malfunction. SELF-DIAGNOSIS When “Er” in temperature indicator is displayed, inspection of the air conditioning system is necessary. Please consult authorized service personnel. Unit number (usually “00”) Error code ex. Self-diagnosis check En-15 9374379781-03_OM.indb Sec1:15 8/6/2018 2:37:28 PM
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