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COUNTRY CALL OR VISIT US ONLINE AT MEXICO 01-800-SAMSUNG(726-7864) www.samsung.com/mx/support BRAZIL 0800-124-421 (Demais cidades e regiões) 4004-0000 (Capitais e grandes centros) www.samsung.com/br/support COSTA RICA 00-800-1-SAMSUNG (726-7864) DOMINICAN REPUBLIC 1-800-751-2676 ECUADOR 1-800-SAMSUNG (72-6786) EL SALVADOR 8000-SAMSUNG (726-7864) GUATEMALA 1-800-299-0033 HONDURAS 800-2791-9111 JAMAICA 1-800-SAMSUNG (726-7864) NICARAGUA 001-800-5077267 PANAMA 800-0101 PUERTO RICO 1-800-682-3180 TRINIDAD & TOBAGO 1-800-SAMSUNG(726-7864) VENEZUELA 0-800-SAMSUNG (726-7864) COLOMBIA CHILE BOLIVIA PERU ARGENTINE URUGUAY PARAGUAY Bogotá en el 600 12 72 Sin costo en todo el pais 01 8000 112 112 Y desde tu celular #726 800-SAMSUNG(726-7864) [HHP] 02-24828200 800-10-7260 080077708 Desde teléfonos fijos ó públicos 7116800 Desde teléfonos celulares 0800-555-SAMSUNG(7267) 0800-SAMS(7267) 0800-11-SAMS(7267) www.samsung.com/latin/support (Spanish) www.samsung.com/latin_en/support (English) www.samsung.com/latin/support (Spanish) www.samsung.com/latin_en/support (English) www.samsung.com/latin/support (Spanish) www.samsung.com/latin_en/support (English) www.samsung.com/latin/support (Spanish) www.samsung.com/latin_en/support (English) www.samsung.com/latin/support (Spanish) www.samsung.com/latin_en/support (English) www.samsung.com/latin/support (Spanish) www.samsung.com/latin_en/support (English) www.samsung.com/latin_en/support (English) www.samsung.com/latin/support (Spanish) www.samsung.com/latin_en/support (English) www.samsung.com/latin/support (Spanish) www.samsung.com/latin_en/support (English) www.samsung.com/latin/support (Spanish) www.samsung.com/latin_en/support (English) www.samsung.com/latin/support (Spanish) www.samsung.com/latin_en/support (English) www.samsung.com/latin/support (Spanish) www.samsung.com/latin_en/support (English) www.samsung.com/co/support www.samsung.com/cl/support www.samsung.com/cl/support www.samsung.com/pe/support www.samsung.com/ar www.samsung.com/uy www.samsung.com/py Air conditioner User & Installation manual ARMV •• Thank you for purchasing this Samsung air conditioner. •• Before operating this unit, please read this user manual carefully and retain it for future reference. DB68-07012A-00 Contents Safety Information 4 Safety Information 4 At a Glance 12 Indoor Unit Overview 12 Display Remote Control Overview 13 Inserting batteries Remote Control Operation 14 Operation modes Controlling temperature Controlling fan speed Controlling air flow direction Power Smart Features 16 Cooling Operation 16 Cool mode 2-Step cooling function Dehumidifying Operation 17 Dry mode Quick Smart Features 18 Auto mode Fan mode Fast function Comfort function Beep sound function Quiet function Energy-Saving Features 21 Energy-Saving Operation 21 Single user function Timed on/Timed off function good’sleep function Cleaning and Maintenance 24 Cleaning at a Glance 24 Troubleshooting26 2 English Installation29 Safety Information on Installation 29 Preparation31 Step 1.1 Choosing the installation location Step 1.2 Checking and preparing accessories and tools Step 1.3 Drilling a hole through the wall Step 1.4 Taping the pipes, cables, and drain hose Indoor Unit Installation 35 Step 2.1 Connecting the power and communication cables (assembly cable) Step 2.2 Optional: Extending the power cable Step 2.3 Installing and connecting the drain hose Step 2.4 Optional: Extending the drain hose Step 2.5 Optional: Changing the direction of the drain hose Step 2.6 Installing and connecting the assembly pipes to the refrigerant pipes (assembly pipe) Step 2.7 Shortening or extending the refrigerant pipes (assembly pipe) Step 2.8 Fixing the installation plate Outdoor Unit Installation 41 Step 3.1 Fixing the outdoor unit in place Step 3.2 Connecting the power and communication cables and the refrigerant pipes Step 3.3 Evacuating the air Step 3.4 Adding refrigerant Installation Inspection 44 Step 4.1 Performing the gas leak tests Step 4.2 Performing final check and trial operation English 3 Safety Information Safety Information Before using your new air conditioner, please read this manual thoroughly to ensure that you know how to safely and efficiently operate the extensive features and functions of your new appliance. Because the following operating instructions cover various models, the characteristics of your air conditioner may differ slightly from those described in this manual. If you have any questions, call your nearest contact centre or find help and information online at www. samsung.com. WARNING Hazards or unsafe practices that may result in severe personal injury or death. CAUTION Hazards or unsafe practices that may result in minor personal injury or property damage. Follow directions. Do NOT attempt. Make sure the machine is grounded to prevent electric shock. Cut off the power supply. Do NOT disassemble. FOR INSTALLATION WARNING Use a power cord with this product's power specifications or higher and use the power cord for this appliance only. In addition, do not use an extension cord. • Extending the power cord may result in electric shock or fire. • Do not use an electric transformer. This may result in electric shock or fire. • If the voltage/frequency/rated current condition is different, it may cause fire. 4 English Install an Isolation Switch next to the Air Conditioner (but not on the panels of the Air Conditioner) and circuit breaker dedicated to the air conditioner. • Failing to do so may result in electric shock or fire. Fix the outdoor unit firmly so that the electric part of the outdoor unit is not exposed. • Failing to do so may result in electric shock, fire, explosion, or problems with the product. Do not install this appliance near a heater, or inflammable material. Do not install this appliance in a humid, oily or dusty location, in a location exposed to direct sunlight and water (or rain). Do not install this appliance in a location where gas may leak. • This may result in electric shock or fire. Never install the outdoor unit in a location such as on a high external wall where it could fall. • If the outdoor unit falls, it may result in injury, death or property damage. This appliance must be properly grounded. Do not ground the appliance to a gas pipe, plastic water pipe, or telephone line. • Failing to do so may result in electric shock, fire, and explosion. • Make sure to use a socket-outlet with ground. CAUTION Please cover the air conditioner with PE BAG after installation, and remove it when you start to run air conditioner. English 5 Safety Information The installation of this appliance must be performed by a qualified technician or service company. • Failing to do so may result in electric shock, fire, explosion, problems with the product, or injury and may also void warranty on the installed product. Safety Information Install your appliance on a level and hard floor that can support its weight. • Failing to do so may result in abnormal vibrations, noise, or problems with the product. Install the drain hose properly so that water drains correctly. • Failing to do so may result in water overflowing and property damage. Avoid adding drain to waste pipes as odours may arise in the future. When installing the outdoor unit, make sure to connect the drain hose so that draining is performed correctly. • The water generated during heating by the outdoor unit may overflow and result in property damage. In particular, in winter, if a block of ice falls, it may result in injury, death or property damage. FOR POWER SUPPLY WARNING When the circuit breaker is damaged, contact your nearest service centre. Do not pull or excessively bend the power line. Do not twist or tie the power line. Do not hook the power line over a metal object, place a heavy object on the power line, insert the power line between objects, or push the power line into the space behind the appliance. • This may result in electric shock or fire. CAUTION When not using the air conditioner for a long period of time or during a thunder/lightning storm, cut the power at the circuit breaker. • Failing to do so may result in electric shock or fire. 6 English WARNING If the appliance is flooded, please contact your nearest service centre. • Failing to do so may result in electric shock or fire. If the appliance generates a strange noise, a burning smell or smoke, cut off the power supply immediately and contact the nearest service centre. • Failing to do so may result in electric shock or fire. In the event of a gas leak (such as propane gas, LP gas, etc.), ventilate immediately without touching the power line. Do not touch the appliance or power line. • Do not use a ventilating fan. • A spark may result in an explosion or fire. To reinstall the air conditioner, please contact your nearest service centre. • Failing to do so may result in problems with the product, water leakage, electric shock, or fire. • Delivery service for the product is not provided. If you reinstall the product in another location, additional construction expenses and an installation fee will be charged. • Especially, when you wish to install the product in an unusual location such as in an industrial area or near the seaside where it is exposed to salt in the air, please contact your nearest service centre. Do not touch the circuit breaker with wet hands. • This may result in electric shock. Do not turn the air conditioner off with the circuit breaker while it is operating. English 7 Safety Information FOR USING Safety Information • Turning the air conditioner off and then on again with the circuit breaker may cause a spark and result in electric shock or fire. After unpacking the air conditioner, keep all packaging materials well out of the reach of children, as packaging materials can be dangerous to children. • If a child places a bag over its head, it may result in suffocation. Do not touch the air flow blade with your hands or fingers during heating. • This may result in electric shock or burns. Do not insert your fingers or foreign substances into the air inlet/outlet of the air conditioner. • Take special care that children do not injure themselves by inserting their fingers into the product. Do not strike or pull the air conditioner with excessive force. • This may result in fire, injury, or problems with the product. Do not place an object near the outdoor unit that allows children to climb onto the machine. • This may result in children seriously injuring themselves. Do not use this air conditioner for long periods of time in badly ventilated locations or near infirm people. • Since this may be dangerous due to a lack of oxygen, open a window at least once an hour. If any foreign substance such as water has entered the appliance, cut off the power supply and contact the nearest service centre. • Failing to do so may result in electric shock or fire. Do not attempt to repair, disassemble, or modify the appliance yourself. 8 English CAUTION Do not place objects or devices under the indoor unit. • Water dripping from the indoor unit may result in fire or property damage. Check that the installation frame of the outdoor unit is not broken at least once a year. • Failing to do so may result in injury, death or property damage. • To prevent personal injury, make sure that you change the directions of the horizontal air flow blades after stopping the movements of the vertical air flow blade. Max current is measured according to IEC standard for safety and current is measured according to ISO standard for energy efficiency. Do not stand on top of the appliance or place objects (such as laundry, lighted candles, lighted cigarettes, dishes, chemicals, metal objects, etc.) on the appliance. • This may result in electric shock, fire, problems with the product, or injury. Do not operate the appliance with wet hands. • This may result in electric shock. Do not spray volatile material such as insecticide onto the surface of the appliance. • As well as being harmful to humans, it may also result in electric shock, fire or problems with the product. English 9 Safety Information • Do not use any fuse (such as cooper, steel wire, etc.) other than the standard fuse. • Failing to do so may result in electric shock, fire, problems with the product, or injury. Safety Information Do not drink the water from the air conditioner. • The water may be harmful to humans. Do not apply a strong impact to the remote control and do not disassemble the remote control. Do not touch the pipes connected with the product. • This may result in burns or injury. Do not use this air conditioner to preserve precision equipment, food, animals, plants or cosmetics, or for any other unusual purposes. • This may result in property damage. Avoid directly exposing humans, animals or plants to the air flow from the air conditioner for long periods of time. • This may result in harm to humans, animals or plants. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, without 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. FOR CLEANING WARNING Do not clean the appliance by spraying water directly onto it. Do not use benzene, thinner or alcohol to clean the appliance. • This may result in discolouration, deformation, damage, electric shock or fire. Before cleaning or performing maintenance, cut off the power supply and wait until the fan stops. • Failing to do so may result in electric shock or fire. 10 English Correct Disposal of This Product (Waste Electrical & Electronic Equipment) (Applicable in countries with separate collection systems) This marking on the product, accessories or literature indicates that the product and its electronic accessories (e.g. charger, headset, USB cable) should not be disposed of with other household waste at the end of their working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate these items from other types of waste and recycle them responsibly to promote the sustainable reuse of material resources. Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take these items for environmentally safe recycling. Business users should contact their supplier and check the terms and conditions of the purchase contract. This product and its electronic accessories should not be mixed with other commercial wastes for disposal. Correct disposal of batteries in this product This marking on the battery, manual or packaging indicates that the batteries in this product should not be disposed of with other household waste at the end of their working life. Where marked, the chemical symbols Hg, Cd or Pb indicate that the battery contains mercury, cadmium or lead above the reference levels in EC Directive 2006/66. English 11 Safety Information CAUTION Take care when cleaning the surface of the heat exchanger of the outdoor unit since it has sharp edges. • This should be done by a qualified technician. Please contact your installer or service centre. Do not clean the inside of the air conditioner by yourself. • For cleaning inside the appliance, contact your nearest service centre. • When cleaning the filter, refer to the descriptions in the ‘Cleaning at a Glance’ section. • Failing to do so may result in damage, electric shock or fire. • Make sure to prevent any injury from sharp edges of the surface when handling the heat exchanger. Indoor Unit Overview The actual product may differ slightly from the image depicted below. 05 01 02 At a Glance 06 07 03 04 01 Air intake 05 Room temperature sensor 02 Air filter 06 Display 03 Air flow blade (up and down) 07 Power button / Remote control receiver 04 Air flow blade (left and right) Display 01 good'sleep indicator 01 02 Timer indicator Auto clean indicator 02 03 Operation indicator 04 Power button 03 05 Remote controller receiver 05 12 English 04 Remote Control Overview 01 Set temperature indicator 05 01 06 02 07 08 03 02 Timer option indicator 03 Operation mode indicator 04 Options indicator 05 Low battery indicator At a Glance 06 Transmit indicator 04 07 Fan speed indicator 10 09 08 Vertical air swing indicator 15 09 Settings indicator 16 10 Power button 11 Temperature button 11 17 12 Options button 13 Timer button 14 Direction button / Selection button 12 18 19 13 15 Vertical air swing button 16 Mode button 17 Fan speed button 20 14 18 Single user button 19 Settings button 20 SET button NOTE Inserting batteries • The descriptions in this manual are primarily made based on the remote control buttons. • Although Virus Doctor ( ) / d'light Cool / Usage / Filter Reset / Display / Heat are displayed on the remote control display, they are not available on this model. two 1.5V AAA type batteries English 13 Remote Control Operation You can use the air conditioner easily by selecting a mode and then by controlling the temperature, fan speed, and air direction. Operation modes You can change the current mode between Auto, Cool, Dry, Fan, by pressing the button. At a Glance Controlling temperature You can control the temperature in each mode as follows: Mode Temperature control Auto/Cool Adjust by 1 °C between 16 °C and 30 °C. Dry Adjust by 1 °C between 18 °C and 30 °C. Fan You cannot control the temperature. NOTE You can use the Cool, Dry, modes in the following conditions: Mode Cool Dry Indoor temperature 16 °C to 32 °C 18 °C to 32 °C Outdoor temperature 16 °C to 43 °C / 16 °C to 46 °C (24MVFHC) 16 °C to 43 °C / 16 °C to 46 °C (24MVFHC) Indoor humidity 80% or less relative humidity _ • If the air conditioner operates in a high humidity environment in the Cool mode for an extended period of time, condensation may occur. 14 English Controlling fan speed You can select the following fan speeds in each mode: Mode Auto/Dry Available fan speeds (Auto) (Auto), (Turbo) Fan (Low), (Low), (Med), (High), (Med), (High), (Turbo) At a Glance Cool Controlling air flow direction Keep the vertical air flow in a constant direction by stopping the movements of the vertical air flow blade. In operation ► NOTE • If you adjust the vertical air flow blade manually, it may not close completely when you turn off the air conditioner. Horizontal air flow (manual) Keep the horizontal air flow in a constant direction by changing the directions of the horizontal air flow blades manually. English 15 Cooling Operation The smart and powerful cooling functions of the Samsung air conditioner keep an enclosed space cool and comfortable. Cool mode Use the Cool mode to stay cool in hot weather. ► ► Select Cool. NOTE Power Smart Features • For comfort, keep the temperature difference between the indoor and outdoor air within 5 °C in the Cool mode. • After selecting the Cool mode, select a function, temperature, and fan speed that you want to apply. –– To cool your room quickly, select a low temperature and a strong fan speed. –– To save energy, select a high temperature and a weak fan speed. –– As the indoor temperature approaches the set temperature, the compressor will operate at a low speed to save energy. 2-Step cooling function Use the 2-Step cooling function to quickly reach the set temperature. The air conditioner automatically adjusts the fan speed and air flow direction. You can select this function only when the Cool mode is running. In the Cool mode ► Select 2-Step. ► 16 English ► ► Dehumidifying Operation The dehumidifying function of the Samsung air conditioner keeps an enclosed space dry and comfortable. Dry mode Use the Dry mode in rainy or humid weather. ► ► Select Dry. NOTE • You cannot use the Dry mode for heating. The Dry mode is designed to produce a cooling side-effect. English 17 Power Smart Features • The lower the set temperature is, the greater the dehumidifying capacity is. When the current humidity seems to be high, adjust the set temperature to a low temperature. Quick Smart Features There is a variety of extra functionality provided by the Samsung air conditioner. Auto mode Use the Auto mode when you want the air conditioner to automatically control the operation. The air conditioner will provide the most comfortable atmosphere that it can. ► ► Select Auto. Power Smart Features NOTE • When the indoor temperature seems to be higher than the set point, the air conditioner automatically produces cool air to cool down the indoor temperature. Fan mode Use the Fan mode to run the air conditioner like a common fan. The air conditioner provides a natural breeze. ► ► Select Fan. NOTE • If the air conditioner will not be used for an extended period of time, dry the air conditioner by running it in the Fan mode for 3 or 4 hours. • The outdoor unit is designed not to operate in the Fan mode to prevent cold air from entering through the unit. This is a normal operation and not a fault with the air conditioner. 18 English Fast function Use the Fast function to quickly cool your room. This function is the most powerful cooling function provided by the air conditioner. You can select this function in the Cool modes. In the Cool mode ► ► ► Select Fast. ► • You can change the air flow direction. • You cannot change the set temperature and the fan speed. Comfort function Use the Comfort function when you feel the current cooling effect is too strong. The air conditioner provides a mild cooling. You can select this function in the Cool modes. In the Cool mode ► ► ► Select Comfort. ► NOTE • You can change the set temperature and the air flow direction. • You cannot change the fan speed. • If you select the Comfort function while such functions as 2-Step cooling, Fast, Single user, Quiet, or good'sleep are running, these functions are cancelled. • If you feel cooling effect in the Comfort function is weak, cancel the Comfort function. English 19 Power Smart Features NOTE • If you select the Fast function while such functions as 2-Step cooling, Comfort, Single user, Quiet, or good'sleep are running, these functions are cancelled. Beep sound function Use the Beep sound function to turn on or off the beep sound that plays when you press a button on the remote control. ► ► Select Beep. ► Power Smart Features Quiet function Use the Quiet function to reduce operating noise. You can select this function in the Cool modes. In the Cool mode ► ► ► Select Quiet. ► NOTE • You can change the set temperature and the air flow direction. • You cannot change the fan speed. • If you select the Quiet function while such functions as 2-Step cooling, Fast, Comfort, Single user, or good'sleep are running, these functions are cancelled. 20 English Energy-Saving Operation Single user function Use the Single user function to reduce electricity consumption while staying cool. You can select this function in the Cool modes. In the Cool mode ► NOTE • When the Single user function starts, the pattern appears on the remote control for a few seconds, and vertical air swing begins automatically. • After selecting the Single user function, you can change the set temperature (24 °C to 30 °C in the Cool mode), fan speed, and vertical air flow direction. • When the Single user function is turned on in the Cool mode while the set temperature is set to lower than 24 °C, the set temperature is automatically raised to 24 °C. But if the set temperature is set to between 25 °C and 30 °C, it remains the same. • Even after you turn off the Single user function, vertical air swing continues until you turn it off with the Vertical air swing ( ) button. • You can also start the Single user function by pressing the Options ( ) button. In the Cool mode ► ► ► Select Single user. ► English 21 Energy-Saving Features • If you select the Single user while such function as 2-Step cooling, Fast, Comfort, Quiet, or good'sleep are running, these modes are cancelled. Timed on/Timed off function Use the Timed on/Timed off to turn on or off the air conditioner after the time that you set. (Select On or Off among On, Off, and .) ► (Set the on/off time.) ► • Press the (Timer) button to change the current function between On, Off, and (good’sleep). (good’sleep) is displayed in the Cool modes only. NOTE Energy-Saving Features • You can set a time between 0.5 and 24 hours. Set the time interval to 0.0 to cancel the Timed on/off function. • Once you start the Timed on/off function, the Timer ( indicator is displayed on the indoor unit display. ) • After starting the Timed on function, you can change the mode and the set temperature. You cannot change the set temperature while the Fan mode is running. • You cannot set the same time for both of the Timed on and Timed off functions. Combining Timed on and Timed off When the air conditioner is off Example) Timed on: 3 hours, Timed off: 5 hours The air conditioner turns on after 3 hours from the moment you start Timed on/off, remains on for 2 hours, then turns off automatically. Example) Timed on: 3 hours, Timed off: 1 hour When The air conditioner turns off after 1 hour from the air the moment you start Timed on/off, then turns conditioner on after 2 hours from the moment it is turned is on off. 22 English good’sleep function Use the good'sleep function to get a good sleep at night and to save energy. You can select this function in the Cool modes. In the Cool mode ► (Select among ► On, Off, and .) (Set the ► operation time.) • Press the (Timer) button to change the current function between On, Off, and (good’sleep). NOTE • The recommended and optimal set temperatures in the good’sleep function are as follows: Mode Recommended set temperature Optimal set temperature Cool 25 °C to 27 °C 26 °C • Once you start the good’sleep function, The Timer ( indicator appears on the indoor unit display. ) • You can set the operation time to between 0.5 and 12 hours. Set the operation time to 0.0 to cancel the good’sleep function. • The default operation time for the good’sleep function in the Cool mode is 8 hours. If the operation time is set to over 5 hours, the Wake up function begins 1 hour before the set time. The air conditioner stops automatically when the operation time expires. • When the Timed on, Timed off, and good'sleep functions are overlapped, the air conditioner operates its timer with only the function that you have started most recently. English 23 Energy-Saving Features • You can adjust the set temperature by 1 °C between 16 °C and 30 °C. Cleaning at a Glance Running Auto clean Cleaning duration (minutes) Auto (Cool), Cool, Dry 30 Fan 15 Indoor unit display NOTE • When you set the Auto clean timer, Clean blinks and then disappears on the remote control display. The Timer ( ) indicator also appears on the indoor unit display. • When the air conditioner is off, Auto clean starts immediately when it is selected. When the air conditioner is on, Auto clean starts as soon as the air conditioner stops running. • During Auto clean, the indoor fan continues to run, and air flow blades remain open to expel ambient air. Cleaning and Maintenance Cleaning the indoor unit exterior and outdoor unit heat exterior Tepid damp cloth Soft brush Before cleaning, be sure to turn off the equipment and disconnect the power plug. Spray water to clean the dust. CAUTION • Do not clean the display by using alkaline detergent. 24 English • Do not use sulphuric acid, hydrochloric acid, or organic solvents (such as thinner, kerosene, and acetone) to clean the surfaces. Do not put any stickers on it as this can damage the surface of the air conditioner. • When you clean and inspect the heat exchanger on the outdoor unit, contact the local service centre for help. Cleaning the filter Vacuum cleaner Soft brush 30 minutes CAUTION • Do not scrub the air filter with a brush or other cleaning utensil. This may damage the filter. • Do not expose the air filter to direct sunlight when drying it. NOTE • Clean the air filter every 2 weeks. Cleaning term may vary depending on the usage and environmental conditions. • If the air filter dries in a humid area, it may produce offensive odours. Clean it again and dry it in a well-ventilated area. English 25 Cleaning and Maintenance Mild detergent Troubleshooting If the air conditioner operates abnormally, refer to the following chart to save time and unnecessary expenses. Problem Solution • Check the power status, then operate the air conditioner again. • Switch on the circuit breaker, plug in the power cord, then operate the air conditioner The air again. conditioner does not work at all. • Make sure that the isolator is turned on. • Check whether the Timed off function is running. Operate the air conditioner again by pressing the Power button. Cleaning and Maintenance I cannot change the temperature. • Check whether the Fan or Fast mode is running. In these modes, the air conditioner controls the set temperature automatically, and you cannot change the set temperature. • Check whether the set temperature is higher in the Cool mode mode than the current temperature. Press the Temperature button on the remote control to change the set temperature. Cool air does not • Check whether the air filter is blocked with come out of the dirt. If the air filter is blocked, the cooling air conditioner. performance may decrease. Remove dirt regularly. • Check whether the outdoor unit is covered or installed near obstacles. Remove the coverings and obstacles. 26 English Problem Solution • Check whether doors or windows are open. This may cause poor cooling performance. Close the doors and windows. • Check whether the air conditioner is turned Cool air does not on immediately after the cooling operation come out of the stops. In this case, only the fan runs to air conditioner. protect the outdoor unit compressor. • Check whether the pipe length is too long. When the pipe length exceeds the maximum pipe length, the cooling performance may decrease. • Check whether the good'sleep function is running. While this function is running, you cannot control the air flow direction. I cannot change the fan speed. • When the Auto, Dry, or Fast mode is running or the good'sleep function is running in the Cool mode, the air conditioner controls the fan speed automatically and you cannot change the fan speed. The remote control does not work. • Replace the batteries in the remote control with new ones. • Make sure that nothing is blocking the remote control sensor. • Check whether there are strong lighting apparatus near the air conditioner. Strong light which comes from fluorescent bulbs or neon signs may interrupt the electric waves. English 27 Cleaning and Maintenance I cannot change the air flow direction. Problem Solution Cleaning and Maintenance The Timed on/ off function does not work. • Check whether you pressed the SET button on the remote control after setting the time. The indicator blinks continuously. • Press the Power button to turn off the air conditioner or disconnect the power plug. If the indicator is still blinking, contact the service centre. Odours permeate in the room during operation. • Check whether the air conditioner is running in a smoky area. Ventilate the room or operate the air conditioner in the Fan mode for 3 to 4 hours. (There are no components used in the air conditioner that emit a strong odour.) • Check whether the drains are clean. Clean them regularly. An error is indicated. • If the indoor unit indicator blinks, contact the nearest service centre. Be sure to pass the error code to the service centre. Noise is generated. • When refrigerant flow changes, noise may be generated, depending on the status of the air conditioner. This is a normal operation. Water drops from the pipe connections of the outdoor unit. • Condensation may develop when the ambient temperature changes excessively. This is a normal operation. 28 English Safety Information on Installation Carefully follow the precautions listed below because they are essential to guarantee the safety of both the air conditioner and the workers. • Always disconnect the air conditioner from the power supply before servicing it or accessing its internal components. • Verify that installation and testing operations are performed by qualified personnel. • Verify that the air conditioner is not installed in an easily accessible area. General information • Carefully read the content of this manual before installing the air conditioner and store the manual in a safe place in order to be able to use it as reference after installation. • For maximum safety, installers should always carefully read the following warnings. • Store the operation and installation manual in a safe location and remember to hand it over to the new owner if the air conditioner is sold or transferred. • This manual explains how to install an indoor unit with a split system with two SAMSUNG units. The use of other types of units with different control systems may damage the units and invalidate the warranty. The manufacturer shall not be responsible for damages arising from the use of non compliant units. • Do not attempt to repair, move, alter or reinstall the unit. If performed by unauthorised personnel, these operations may cause electric shocks or fires. • Do not place containers with liquids or other objects on the unit. • All the materials used for the manufacture and packaging of the air conditioner are recyclable. • The packing material and exhaust batteries of the remote control (optional) must be disposed of in accordance with current laws. • The air conditioner contains a refrigerant that has to be disposed of as special waste. At the end of its life cycle, the air conditioner must be disposed of in authorised centres or returned to the retailer so that it can be disposed of correctly and safely. Installation of the unit • IMPORTANT: When installing the unit, always remember to connect first the refrigerant tubes, then the electrical lines. Always disassemble the electric lines before the refrigerant tubes. • Upon receipt, inspect the product to verify that it has not been damaged during transport. If the product appears damaged, DO NOT INSTALL it and immediately report the damage to the carrier or retailer (if the installer or the authorised technician has collected the material from the retailer.) • After completing the installation, always carry out a functional test and provide the instructions on how to operate the air conditioner to the user. • The air conditioner should be used only for the applications for which it has been designed: the indoor unit is not suitable to be installed in areas used for laundry. • Do not use the air conditioner in environments with hazardous substances or close to equipment that release free flames to avoid the occurrence of fires, explosions or injuries. • Do not use the units if damaged. If problems occur, switch the unit off and disconnect it from the power supply. • Our units must be installed in compliance with the spaces indicated in the installation manual to ensure either accessibility from both sides or ability to perform routine maintenance and repairs. The units’ components must be accessible and that can be disassembled in conditions of complete safety either for people or things. For this reason, where it is not observed as indicated into the Installation Manual, the cost necessary to reach and repair the unit (in safety, as required by current regulations in force) with slings, • In order to help prevent electric shocks, fires or injuries, always stop the unit, disable the protection switch and contact SAMSUNG’s technical support if the unit produces smoke, if the power cable is hot or damaged or if the unit is very noisy. • Always remember to inspect the unit, electric connections, refrigerant tubes and protections regularly. These operations should be performed by qualified English 29 installation • The manufacturer shall not be responsible for damage originating from unauthorised changes or the improper connection of electric and requirements set forth in the “Operating limits” table, included in the manual, shall immediately invalidate the warranty. personnel only. • The unit contains moving parts, which should always be kept out of the reach of children. • trucks, scaffolding or any other means of elevation won’t be considered in-warranty and will be charged to end user. Power supply line, fuse, or circuit breaker • When installing the outdoor unit at the seaside, make sure that it is not directly exposed to sea breeze. If you cannot find an adequate place free from direct sea breeze, construct a protection wall or a protective fence. • Always make sure that the power supply is compliant with current safety standards. Always install the air conditioner in compliance with current local safety standards. –– Install the outdoor unit in a place (such as near buildings etc.) where it can be protected from sea breeze. Failure to do so may cause a damage to the outdoor unit. Sea breeze Sea breeze • Always verify that a suitable grounding connection is available. • Verify that the voltage and frequency of the power supply comply with the specifications and that the installed power is sufficient to ensure the operation of any other domestic appliance connected to the same electric lines. • Always verify that the cut-off and protection switches are suitably dimensioned. Sea Outdoor unit Sea Outdoor unit • If you cannot avoid installing the outdoor unit at the seaside, construct a protection wall around to block the sea breeze. • Construct a protection wall with a solid material such as concrete to block the sea breeze. Make sure that the height and the width of the wall are 1.5 times larger than the size of the outdoor unit. Also, secure a space larger than 600 mm between the protection wall and the outdoor unit for exhausted air to ventilate. Sea breeze installation Sea Protection wall Outdoor unit Outdoor unit Protection wall • Install the unit in a place where water can drain smoothly. • If you have any difficulty finding installation location as prescribed above, contact your manufacturer for details. • Be sure to clean the sea water and the dust on the heat exchanger of the outdoor unit and apply a corrosion inhibitor on it. (At least once in a year.) 30 English • Verify that the air conditioner is connected to the power supply in accordance with the instructions provided in the wiring diagram included in the manual. • Always verify that electric connections (cable entry, section of leads, protections…) are compliant with the electric specifications and with the instructions provided in the wiring scheme. Always verify that all connections comply with the standards applicable to the installation of air conditioners. • Be sure not to perform power cable modification, extension wiring, and multiple wire connection. –– It may cause electric shock or fire due to poor connection, poor insulation, or current limit override. –– When extension wiring is required due to power line damage, refer to "Step 2.2 Optional: Extending the power cable" in the installation manual. Preparation Step 1.1 Choosing the installation location Overview of installation location requirements CAUTION • Comply with the length and height limits described in the figure above. Minimum clearances for the outdoor unit 100 mm or more Wall 125 mm or more 125 mm or more Minimum clearance in mm Drain hose hole 300 You can select the direction of draining (left or right). 600 Maximum pipe height Maximum pipe length Air flow direction Make at least one round to reduce noise and vibration. Top view Side view When installing 1 outdoor unit (6 cases) The actual units may look different from the images depicted here. (Unit: mm) 20 12 AR24MVFHC 3 30 15 Outer wall Indoor Unit Cut insulation to have rainwater drained CAUTION 1500 3 Make a U-trap (A) on the pipe (which is connected to the indoor unit) at outer wall and cut the bottom part of the insulation (about 10 mm) to prevent rainwater from getting inside through the insulation. 2000 150 300 1500 7 18/24 Outdoor Unit Maximum 600 300 15 300 Maximum 3 English 31 installation Minimum 09/12 1500 Pipe height 500 Model 300 (Unit : m) Pipe length Step 1.2 Checking and preparing accessories and tools When installing more than 1 outdoor unit (5 cases) (Unit: mm) Accessories 600 3000 3000 200 Installation plate (1) Remote control (1) 600 Manual user & install (1) Remote control battery (2) 300 1500 600 Accessories in the indoor unit package 1500 300 1500 600 500 500 300 600 600 300 300 installation CAUTION • If the outdoor unit is installed with any insufficient clearance, it may generate sound and affect the whole product. • Be sure to install the outdoor unit in a level place where its vibration does not affect the whole product. 32 English Optional accessories NOTE Insulated assembly pipe, Ø 6.35 mm (1) Insulated assembly pipe, Ø 12.70 mm (1) 18 Drain Hose, 2 m long (1) Insulated assembly pipe, Ø 9.52 mm (1) 09/12 Insulated assembly pipe, Ø 15.88 mm (1) 24 Foam Insulation(1) • A flare nut is attached to the end of each pipe of an evaporator or a service port. Use flare nuts when connecting the pipes. • Wire assembly cables are optional. If they are not supplied, use standard cables. • The drain plug and the rubber legs are included only when the air conditioner is supplied without assembly pipes. • If these accessories are supplied, they are in the accessory package or outdoor unit package. Tools Pipe clamp A (3) Vinyl tape (2) Pipe clamp B (3) PE T3 foam tube insulation (1) General tools • Vacuum pump (Backward flowing prevention) • Manifold gauge • Stud finder Putty 100 g (1) M4 x 25 tapped screw (6) • Torque wrench • Pipe cutter • Reamer Cement nail (6) 3-wire power cable (1) 3-wire assembly cable 24(1) 2-wire assembly cable AR24MVFHCWK(1) 4-wire assembly cable 09/12/18(1) 1-wire assembly cable AR24MVFHDWK(1) • Pipe bender • Spirit level • Screwdriver • Spanner • Drill • L-wrench • Measuring tape Tools for test operation • Thermometer • Resistance meter Step 1.3 Drilling a hole through the wall Accessories in the outdoor unit package Rubber leg (4) Before fixing the installation plate to a wall and then fixing the indoor unit to the installation plate, a window frame, or a gypsum board, you must determine the position of a hole (with 65 mm inner diameter) through which the pipe bundle (consisting of power and communication cables, refrigerant pipes, and drain hose) will pass and then drill that hole. 1. Determine the position of a 65 mm hole in consideration of the possible directions of the pipe bundle and the minimum distances between the hole and the installation plate. English 33 installation • Electroscope 2. Drill the hole. CAUTION Left Right Rear right or left • Be sure to drill only one hole. • Make sure that the hole slants downwards so that the drain hose slants downwards to drain water well. Wall Bottom right <Possible directions of the pipe bundle> Indoor unit CAUTION • If changing the pipe direction from left to right, do not drastically bent it but slowly turn it in the opposite direction as shown. Otherwise, the pipe may be damaged in the process. Pipe bundle hole <Minimum distances between the hole and the installation plate> (Unit : mm) installation Model A B C D 09/12 30 96 38 30 18/24 38 126 70 38 Pipe bundle hole: Ø 65 mm Drain hose <The hole slants downwards> Step 1.4 Taping the pipes, cables, and drain hose 1. Wrap foam insulation on parts without insulation on the ends of the refrigerant pipes, as shown in the figure. This wrapping minimises condensation problem. Insulation Refrigerant pipes 2. Wind the refrigerant pipes, power cable, communication cable and drain hose with vinyl tape to make a pipe bundle. Refrigerant pipes Installation plate Vinyl tape Power and communication cables (assembly cable) Drain hose 34 English (assembly pipe) Indoor Unit Installation Step 2.1 Connecting the power and communication cables (assembly cable) • When performing electrical and earthing works, be sure to comply with the 'technical standards of electrical installations' and the 'wiring regulations' in the local regulations. • Tighten the terminal block screw to 1.2-1.8 N•m (1218 kgf•cm). NOTE • Each wire is labelled with the corresponding terminal number. Control box • Use shield cable (Category 5; less than 50pF/m) for noisy environmental site. • Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord. (Code designation IEC: 60245 IEC 66/ CENELEC: H07RN-F, IEC: 60245 IEC 57/CENELEC: H05RN-F) Before connecting Correct Upside down Correct (Front view) Correct (Side view) Damaged Non-circular • Power & Communication cable shall not exceed 30m. CAUTION After connecting Upside down Non-fitted <Circular terminal> 09/12 18 24MVFHD N(1) 1 • If you need to extend the pipe, be sure to extend the cable too. The maximum length of each of the cable and pipe used should not exceed 15(09/12) /20(18/24)/30(AR24MVFHCWK)metres. 24MVFHC 1(L)2(N) 2 • For the terminal block wiring, use a wire with a ring terminal socket only. Regular wires without a ring terminal socket may become a hazard due to overheating of the electrical contact during installation. • Do not connect two or more different cables to extend the length. This connection may cause fire. F1 F2 • After connecting the cables, make sure that terminal numbers on the indoor and outdoor units match. • Ensure that power and communication cables are separated, they must not be in the same cable. Fasten the screws for the wire holders. Model Power cable Outdoorto-indoor power cable 09/12 18 24MVFHD 24MVFHC 3GX1.0mm², 3GX1.5mm², 3GX2.5mm², H05VV-F H05VV-F H05VV-F 3GX2.5mm², H07RN-F 4GX1.5mm², 4GX1.5mm², 3GX2.5mm², H07RN-F H07RN-F H07RN-F 3GX1.0mm², H07RN-F WARNING • Connect the wires firmly so that wires cannot be pulled out easily. (If they are loose, it could cause burn-out of the wires.) • Tighten the Holder Wire Clamp screw to 0.8~1.0 N•m (8~10 kgf•cm) Communication cable - - TypeGL 20A 25A 1GX0.75mm², 2GX0.75mm², H05RN-F H05RN-F 25A 25A English 35 installation • Each circular terminal must match the size of its corresponding screw in the terminal block. Step 2.2 Optional: Extending the power cable 4. Using a compressor, compress the two points and flip it over and compress another two points in the same location. 1. Prepare a compressor and the following tools. Tools Spec Crimping pliers Connection sleeve (mm) Insulation tape Contraction tube (mm) 20xØ6.5 (HxOD) Width 19 mm 70xØ8.0 (LxOD) • The compression dimension should be 8.0. Compression dimension Shape MH-14 • After compressing it, pull both sides of the wire to make sure it is firmly pressed. Method 1 Compress it 4 times Method 2 Compress it 4 times 2. As shown in the figure, peel off the shields from the rubber or wire of the power cable. • Peel off 20 mm of the wire shields of the tube installed already. CAUTION • For information about the power cable specifications for indoor and outdoor units, refer to the installation manual. 5 mm 5 mm 5. Wrap it with the insulation tape twice or more and position your contraction tube in the middle of the insulation tape. A total of three or more layers of insulation is required. Method 1 Method 2 Insulation tape • After peeling off the tube wire, you must insert a contraction tube. Power cable Insulation tape 40 mm 35 mm 6. Apply heat to the contraction tube to 20 20 20 contract it. 60 120 installation 180 Contraction tube (Unit: mm) Wire tube power cable 20 (Unit: mm) 3. Insert both sides of core wire of the power cable into the connection sleeve. • Method 1: Push the core wire into the sleeve from both sides. • Method 2: Twist the wire cores together and push it into the sleeve. Method 1 Connection sleeve 36 English Method 2 Connection sleeve 7. After tube contraction work is completed, wrap it with the insulation tape to finish. Insulation tape CAUTION • Make sure that the connection parts are not exposed to outside. • Be sure to use insulation tape and a contraction tube made of approved reinforced insulating materials that have the same level of withstand voltage with the power cable. (Comply with the local regulations on extensions.) WARNING CAUTION • In case of extending the electric wire, please DO NOT use a round-shaped pressing socket. –– Incomplete wire connections can cause electric shock or a fire. • Make sure that the indoor unit is in upright position when you pour water to check for leakage. Make sure that the water does not overflow onto the electrical part. • If the diameter of the connection hose is smaller than the product's drain hose, water leakage may occur. Step 2.3 Installing and connecting the drain hose 1. Install the drain hose. • Inadequate installation may cause water leakage. • If the drain hose is routed inside the room, insulate the hose so that dripping condensation does not damage the furniture or floors. • Do not box in or cover the drain hose connection. Drain hose connection must be easily accessible and serviceable. Step 2.4 Optional: Extending the drain hose Drain hose Assembly pipe Connection hose Drain hose (A) Extension drain hose (B) Wall 40~45mm Indoor unit Drain hose Slant downwards Slant upwards Dipped in water (A) 5 cm less Bent Too small clearance Extension drain hose Ditch Too small clearance 20 mm or more Foam insulation 2. Pour water into the drain pan. Check whether the hose is well drained. Vinyl tape English 37 installation Drain hose (B) Step 2.5 Optional: Changing the direction of the drain hose Drain pan outlet Rubber cap • The larger one is for the gas refrigerant A short liquid refrigerant pipe and a short gas refrigerant pipe are already fitted to the air conditioner. The connection procedure for the refrigerant pipes varies according to the exit position of each pipe when facing the wall: Left(A) Right(B) Underside(C) Pour water in the direction of arrow. 1. Cut out the appropriate knock-out piece (A, B, C) on the rear of the indoor unit unless you connect the pipe directly from the rear. 2. Smooth the cut edges. <Front view> Direction of the drained water <Side view> CAUTION installation • Make sure that the indoor unit is in upright position when you pour water to check for leakage. Make sure that the water does not overflow onto the electrical part. Step 2.6 Installing and connecting the assembly pipes to the refrigerant pipes (assembly pipe) Connect indoor and outdoor units with field-supplied copper pipes by means of flare connections. Use insulated seamless refrigeration grade pipe only, (Cu DHP type according to ISO1337), degreased and deoxidized, suitable for operating pressures of at least 4200 kPa and for burst pressure of at least 20700 kPa. Under no circumstances must sanitary type copper pipe be used. There are 2 refrigerant pipes of different diameters: • The smaller one is for the liquid refrigerant 38 English 3. Remove the protection caps of the pipes and connect the assembly pipe to each pipe. Tighten the nuts first with your hands, and then with a torque wrench, applying the following torque: Outer diameter (mm) Torque (N•m) Torque (kgf•cm) ø 6.35 14 to 18 140 to 180 ø 9.52 34 to 42 350 to 430 ø 12.70 49 to 61 500 to 620 ø 15.88 68 to 82 690 to 830 NOTE • If you want to shorten or extend the pipes, see Step 2.7 Shortening or extending the refrigerant pipes (assembly pipe) on page 40. 4. Cut off the remaining foam insulation. 5. If necessary, bend the pipe to fit along the bottom of the indoor unit. Then pull it out through the appropriate hole. • The pipe should not project from the rear of the indoor unit. • The bending radius should be 100 mm or more. 6. Pass the pipe through the hole in the wall. NOTE Flare nut • The pipe will be insulated and fixed permanently into position after finishing the installation and the gas leak test. For further details. see Step 4.1 Performing the gas leak tests on page 45. CAUTION Indoor outlet pipe Connecting pipe (Unit: mm) Outer diameter (mm) Torque (N•m) Torque (kgf•cm) • Tighten the flare nut with a torque wrench according to specified method. If the flare nut is over-tightened, the flare may break and cause refrigerant gas leakage. • Do not box in or cover the pipe connection. All refrigerant pipe connection must be easily accessible and serviceable. Step 2.7 Shortening or extending the refrigerant pipes (assembly pipe) Pipe cutter ø 6.35 ø 9.52 ø 12.70 ø 15.88 14 to 18 34 to 42 49 to 61 68 to 82 140 to 180 350 to 430 500 to 620 690 to 830 CAUTION • If you need a pipe longer than specified in piping codes and standards, you must add refrigerant to the pipe. Otherwise, the indoor unit may freeze. • While removing burrs, put the pipe face down to make sure that the burrs do not get in to the pipe. Pipe Oblique 90° Rough Gas service port <High pressure> <Low pressure> installation D Burr Liquid service port 90°±2° A 45°±2° L R 0.4 to 0.8 Pipe Flare Correct D (Unit: mm) Outer diameter (D) Depth (A) Flare dimension (L) ø 6.35 1.3 8.7 to 9.1 ø 9.52 1.8 12.8 to 13.2 ø 12.70 2.0 16.2 to 16.6 ø 15.88 2.2 19.3 to 19.7 Inclined Cracked Uneven thickness Damaged surface <Flare nut> English 39 When fixing the indoor unit on a window frame NOTE • Excessive torque may cause gas leakage. When extending the pipe with welding or brazing, ensure that nitrogen is used during the welding or brazing process. The joint must be accessible and serviceable. CAUTION • Tighten the flare nut at the specified torque. If the flare nut is over-tightened, it may break to cause leakage of refrigerant gas. Step 2.8 Fixing the installation plate You can install the indoor unit on a wall, window frame, or gypsum board. 1. Determine the positions of the wooden uprights to be attached to the window frame. 2. Attach the wooden uprights to the window frame giving attention to the weight of the indoor unit. 3. Attach the installation plate to the wooden upright using tapping screws. When fixing the indoor unit on a gypsum board 1. Use stud finder to find out locations of the studs. 2. Fix the plate hanger on two studs. WARNING • Make sure that the wall, window frame, or gypsum board can withstand the weight of the indoor unit. If you install the indoor unit in a place where it is not strong enough to withstand the unit's weight, the unit could fall and cause injury. When fixing the indoor unit on a wall Fix the installation plate to the wall giving attention to the weight of the indoor unit. installation Wall (Unit : mm) Model A B C D 09/12 30 96 38 30 18/24 38 126 70 38 Pipe bundle hole: Ø 65 mm NOTE • If you mount the plate to a concrete wall using plastic anchors, make sure that gaps between the wall and the plate, created by projected anchor, is less than 20 mm. 40 English • Search for other spots if there are less than two studs, or the distance between the studs are different from the plate hanger. • Fix the installation plate without inclining to one side. Plastic anchor 20 mm CAUTION • If you fix the indoor unit on a gypsum board, use only specified anchor bolts on reference positions. Otherwise, the gypsum surrounding the joints may crumble over time and cause the screws to be loosened and stripped. This may lead to physical injury or equipment damage. Outdoor Unit Installation Step 3.1 Fixing the outdoor unit in place X NOTE • Make sure that the wall can support the weights of the rack and the outdoor unit. Y • Install the rack close to the column as much as possible. Rubber leg (Unit : mm) Model X Y 09 436 265 12 507 292 18 602 310 24 660 340 1. Place the outdoor unit as directed on the top of the unit to let the discharged air out properly. Step 3.2 Connecting the power and communication cables and the refrigerant pipes 09/12 18 24MVFHD N(1) 1 2 Outdoor-to-indoor power cable 2. Fix the outdoor unit in level to an appropriate support using anchor bolts. 24MVFHC NOTE • Secure the rubber legs to help prevent the generation of noise and vibration. L N F1 • If the outdoor unit is exposed to strong winds, install shield plates around the outdoor unit so that the fan can operate correctly. F2 Soft rubber designed to cut off vibration from rack to wall (not supplied with product) Outdoor-to-indoor power cable (three wires) Power cable (three wires) Communication cable (two wires) CAUTION • Be sure to fix the power cables and communication cable with a cable clamp. Soft rubber designed to cut off residual vibration from outdoor unit to rack (not supplied with product) English 41 installation Optional: Fixing the outdoor unit to a wall with a rack 1 Leave the system in the standby mode. WARNING Control box Remove the screw for the control box cover Remove the gas and liquid service port caps • Do not turn on the system! This is necessary for better vacuum operation (full OPEN position of Electronic Expansion Valve). 2 Connect the charging hose of the low pressure side of manifold gauge to a gas service port as seen in the picture. For connecting the refrigerant pipes 3 Valve Gas service port <Low pressure> 4 15 minutes Vacuum Pump (Backward flowing prevention) Liquid service port <Low pressure> 5 Liquid service port <High pressure> Connect the gas and liquid refrigerant pipes Liquid service port <High pressure> Step 3.3 Evacuating the air installation The outdoor unit is loaded with sufficient R-410A refrigerant. Do not vent R-410A into atmosphere: it is a fluorinated greenhouse gas, covered by Kyoto Protocol, with a Global Warming Potential (GWP) = 2088. You should evacuate the air in the indoor unit and in the pipe. If air remains in the refrigerant pipes, it affects the compressor. It may cause reduction of cooling capacity and malfunction. Use a vacuum pump. 3 Open the valve of the low pressure side of manifold gauge anticlockwise. 4 Evacuate the air in the connected pipes using the vacuum pump for about 15 minutes. • Make sure that pressure gauge shows -0.1 MPa (-76 cmHg, 5 torr) after about 10 minutes. This procedure is very important to avoid a gas leak. • Close the valve of the low pressure side of manifold gauge clockwise. CAUTION • When installing, make sure there is no leakage. When recovering the refrigerant, ground the compressor first before removing the connection pipe. If the refrigerant pipe is not properly connected and the compressor works with the stop valve open, the pipe inhales the air and it makes the pressure inside of the refrigerant cycle abnormally high. It may cause explosion and injury. 42 English • Turn off the vacuum pump. • Check for 2 minutes if there is any pressure change. • Remove the hose of the low pressure side of manifold gauge. 5 Set a valve cork of liquid and gas service port to the open position. Step 3.4 Adding refrigerant If you use a pipe longer than the length specified in the piping codes and standards, you must add 15g of refrigerant R-410A for each extra metre. If you use a pipe shorter than the length specified in the piping codes and standards, the evacuating time is normal. Refer to the Service Manual for further details. CAUTION • The remaining air in the Refrigeration cycle, which contains moisture, may cause malfunction of the compressor. • Always contact the service centre or a professional installation agency for product installation. R-410A is a mixed type of refrigerant. It is necessary for recharging under conditions of liquid. When recharging refrigerant from the refrigerant cylinder to the equipment, take the following instructions: Before recharging, check whether the cylinder has a siphon or not. There are two ways to recharge the refrigerant: Siphon Charge the refrigerant standing the cylinder upright. Charge the refrigerant turning the cylinder upside down. <Cylinder with siphon> <Cylinder without siphon> installation NOTE • If R-410A refrigerant is charged with gas, the composition of the charged refrigerant changes and the characteristics of the equipment vary. • During the measuring operation of refrigerant quantity added, use electronic scales. If cylinder doesn't have siphon, upset it. English 43 Installation Inspection Step 4.1 Performing the gas leak tests 1. Before inspecting the leakage, use a torque wrench to close the cap for the stop valve. (Comply with a tightening torque for each size of the diameter, and tighten the cap firmly to prevent any leakage.) Test parts for the indoor unit Tightening torque for body cap (Refer to the table) Spindle Charging core Step 4.2 Performing final check and trial operation 1. Check the following: • Strength of the installation site R-22: Thread of the screw - 7/16-2OUNF • Tightness of pipe connection to detect gas leak R-410A: Thread of the screw -1/2-2OUNF • Electric wiring connection Tightening torque for charging port cap (Refer to the table) Outer diameter (mm) Tightening torque Body cap (N•m) ø 6.35 20 to 25 ø 9.52 20 to 25 ø 12.70 25 to 30 ø 15.88 30 to 35 Over ø 19.05 35 to 40 Charging port cap (N•m) 10 to 12 ( 1 N•m = 10 kgf•cm ) 2. Insert inert gas into the pipes connected to indoor and outdoor units. installation 3. Test leakage on the connection parts of the indoor and outdoor units with soap lather or liquid. • Heat-resistant insulation of the pipe • Drainage • Grounding conductor connection • Correct operation (Take the following steps.) 2. Press the (Power) button on the remote control to check the following: • The indicator on the indoor unit lights up. • The airflow blade opens and the fan gears up for operation. 3. Press the (Mode) button to select Cool mode. Then take the following sub-steps: • In Cool mode, use the Temperature button to set the set temperature to 16 °C. • Check whether, approximately 3 to 5 minutes later, the outdoor unit starts, and a cool air blows out. • After 12 minutes of stationary condition, check the indoor unit air treatment. 4. Press the (Air swing) button to check whether the airflow blades work properly. Test parts for the indoor unit 5. Press the operation. (Power) button to stop the trial Pumping down refrigerant Pump-down is an operation intended to collect all the system refrigerant in the outdoor unit. This operation must be carried out before disconnecting the refrigerant tubing in order to avoid refrigerant loss to the atmosphere. 44 English WARNING • After installing the product, be sure to perform leak tests on the piping connections. Before pumping down refrigerant to inspect or relocate the outdoor unit, be sure to stop the compressor and then remove the connected pipes. valve on the low pressure side. 6. Stop operation of the air conditioner by pressing the (Power) button on the indoor unit or remote control. 7. Disconnect the pipes. –– Do not operate the compressor while a valve is open due to refrigerant leakage from a pipe or an unconnected or incorrectly connected pipe. Failure to do so may cause air to flow into the compressor and too a high pressure to develop inside the refrigerant circuit, leading to an explosion or product malfunction. 1 1 minute 1. Shut off the liquid valve with the Allen wrench. 2. Turn on the air conditioner in cooling with fan operating at high velocity. (Compressor will immediately start, provided 3 minutes have elapsed since the last stop.) Liquid service port <High pressure> 3. After 2 minutes of operation, shut the suction valve with the same wrench. Gas service port <Low pressure> 2 4. Turn off the air conditioner and switch mains supply off. 5. Disconnect tubing. After disconnection, protect valves and tubing ends from dust. Off CAUTION installation • Compressor damage may occur if the compressor is run at a negative suction pressure. Pumping down for removing the product 1. Hold down the (Power) button on the indoor unit for 5 seconds. Beep sounds immediately to indicate that the product is ready for pump down procedure. 2. Let the compressor run for more than 5 minutes. 3. Release the valve caps on High and Low pressure side. 4. Use L-wrench to close the valve on the high pressure side. 5. After approximately 1 minute, close the English 45
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