Installation manual AR**NXPX*** DB68-07998A-00 Preparation Outdoor unit Sea Outdoor unit Sea • 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 Protection wall Outdoor unit Outdoor unit Protection wall Sea • 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.) • Because your air conditioner contains R-32 refrigerant, make sure that it is installed, operated, and stored it in a room whose floor area is larger than the minimum required floor area specified in the following table: • For the product that uses the R-32 refrigerant, Install the indoor unit on the wall 1.8 m or higher from the floor (Please refer to Table 1) (Unit : mm) Model A B C D **09/12******* 36 120 81 36 m (kg) A (m2) No requirement 沒有相關要求 4.45 4.58 4.83 5.31 5.79 6.39 7.41 8.51 ≤ 1.842 1.843 1.9 2.0 2.2 2.4 2.6 2.8 3.0 • m : Total refrigerant charge in the system m: 系統內 總雪種量 • A : Minimum required floor area A: 所需最小面積 • IMPORTANT: it’s mandatory to consider either the table above or taking into consideration the local law regarding the minimum living space of the premises. 安裝時必須考慮表1 或當地有關法律 • While in installation or relocation of the product, do not mix the refrigerant with other gases including air or unspecified refrigerant. Failure to do so may cause pressure increase to result in rupture or injury. • Do not cut or burn the refrigerant container or pipings. • Use clean parts such as manifold gauge, vacuum pump, and charging hose for the refrigerant. • Installation must be carried out by qualified personnel for handling the refrigerant. Additionally, reference the regulations and laws. • Be careful not to let foreign substances (lubricating oil, refrigerant, water, etc.) enter the pipings. The application of oil or refrigerant deteriorates the pipings to result in drain leakage. For storage, securely seal their openings. • When mechanical ventilation is required, ventilation openings shall be kept clear of obstruction. • For disposal of the product, follow the local laws and regulations. • Do not work in a confined place. • The work area shall be blocked. • The refrigerant pipings shall be installed in the position where there are no substances that may result in corrosion. • The following checks shall be performed for installation: –– The charging amount depends on the room size. –– The ventilation devices and outlets are operating normally and are not obstructed. –– Markings and signs on the equipment shall be visible and legible. • Upon leakage of the refrigerant, ventilate the room. When the leaked refrigerant is exposed to flame, it may cause generation of toxic gases. • Make sure that the work area is safe from flammable substances. (Unit: mm) 500 Wall Step 1.1 Choosing the installation location 500 Minimum clearance in mm Overview of installation location requirements 100 mm or more 300 125 mm or more • 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. 125 mm or more Top view Side view When installing 1 outdoor unit Drain hose hole You can select the direction of draining (left or right). (6 cases) (Unit: mm) Maximum pipe height 1500 Make at least one round to reduce noise and vibration. 2000 600 300 1500 500 150 The actual units may look different from the images depicted here. (Unit : m) Pipe length Minimum Maximum **09/12******* 3 CAUTION Outer wall Indoor Unit 5 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. 1500 600 3000 3000 600 600 • The parts shall be labelled to ensure that they have been decommissioned and emptied of refrigerant. • The labels shall be dated. • Make sure that the labels are affixed on the system to notify it contains flammable refrigerant. If a hot work is to be done, an appropriate fire extinguishing equipment should have been available. • A dry powder or CO2 fire extinguisher shall be equipped near the charging area. Ignition sources free • Make sure to store the units in a place without continuously operating ignition sources (for example, open flames, an operating gas appliance or an operating electric heater). • The service engineers shall not use any ignition sources with the risk of fire or explosion. • Potential ignition sources shall be kept away from the work area where the flammable refrigerant can possibly be released to the surrounding. • The work area should be checked to ensure that there are no flammable hazards or ignition risks. The “No Smoking” sign shall be attached. • Under no circumstances shall potential sources of ignition be Indoor Unit Installation Insulated assembly pipe, Ø 6.35 mm (1) Insulated assembly pipe, Ø 9.52 mm (1) **09/12******* Drain Hose, 2 m long (1) Pipe clamp B (3) Pipe clamp A (3) PE T3 foam tube insulation (1) Putty 100 g (1) M4 x 25 tapped screw (6) Cement nail (6) Drain plug (1) 3-wire power cable (1) Step 1.3 Checking and preparing accessories and tools Accessories 300 600 600 Installation plate (1) **09/12******* Remote control (1) Users Manual (1) Control box Flat-head screwdriver 2 Unlock the side hooks ( , ), then centre hooks ( ). Then unlock the bottom hooks ( ) to pull out the cover panel. Before connecting Correct Upside down Damaged Noncircular Drain hose Indoor unit After connecting <The hole slants downwards> Correct Correct (Front view) (Side view) A Upside down Non-fitted <Circular terminal> C B Bottom/Side hook (B/C) 1(L)2(N) F1 F2 Insulation NOTE • Each wire is labelled with the corresponding terminal number. • 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 IEC66/CENELEC: H07RN-F, IEC: 60245 IEC57/CENELEC: H05RN-F, IEC: 60227 IEC53/CENELEC: H05VV-F) • Power & Communication cable shall not exceed 30m. • 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. • If you need to extend the pipe, be sure to extend the cable, too. 1 Refrigerant pipes Drain hose Model Cable (Maximum) Fasten the screws for the wire holders. 4 Left Right <Possible directions of the pipe bundle> 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. 2 As shown in the figure, peel off the shields from the rubber and wire of the power cable. • Peel off 20 mm of cable shields from the pre-installed tube. CAUTION • For information about the power cable specifications for indoor and outdoor units, refer to the installation manual. • After peeling off cable wires from the pre-installed tube. Insert a contraction tube. **09/12******* 30 Model **09/12******* Power cable (Outdoor unit) 3G X 2.5 mm², H07RN-F Outdoor-to-Indoor power cable 3G X 1.0 mm², H07RN-F Communication cable 2 X 0.75 mm², H05RN-F Type GL 20 A • 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 (1.2-1.8 kgf•cm). 6 Apply heat to the contraction tube to contract it. Contraction tube 7 After tube contraction work is completed, wrap it with the insulation tape to finish. Insulation tape Power cable CAUTION 20 20 20 60 120 180 (Unit: mm) Pre-installed tube for the power cable 20 (Unit: mm) • Do not connect two or more different cables to extend the length. This connection may cause fire. • Each circular terminal must match the size of its corresponding screw in the terminal block. • 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. 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. • For the product that uses the R-32 refrigerant, be cautious not to generate a spark by keeping the following requirements: 對於使用R-32 製冷劑的產品，請謹慎保持以下要求不產生 火花： –– Do not remove the fuses with power on. 請勿在接通電源的情況下拆下保險絲 –– Do not disconnect the power plug from the wall outlet with power on. 電源打開時，請勿從牆壁插座上拔下電源插頭 –– It is recommended to locate the outlet in a high position. Place the cords so that they are not tangled. 建議將插座置於高位。放置電線，使它們不會纏結在一起 4 Using a crimping tool, compress the two points and flip it over and compress another two points in the same location. • The compression dimension should be 8.0. Method 1 Method 2 Connection sleeve • 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 • 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. Step 2.5 Installing and connecting the drain hose Connection sleeve 1 Install the drain hose. Compression dimension Drain hose • Connect the wires firmly so that wires cannot be pulled out easily. (If they are loose, it could cause burn-out of the wires.) 2 Power and communication cables (assembly cable) 2-wire assembly cable (1) Remote control battery (2) WARNING Vinyl tape 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. Installation Manual (1) Screw Refrigerant pipes (assembly pipe) • Electroscope Bottom right CAUTION Wall Pipe bender Spirit level Screwdriver Spanner Drill L-wrench Measuring tape Rear right or left 600 • Make sure that the hole slants downwards so that the drain hose slants downwards to drain water well. Installation plate • • • • • • • Accessories in the indoor unit package (Unit : m) 1 Wind the refrigerant pipes, power cable, communication cable and drain hose with vinyl tape to make a pipe bundle. • Vacuum pump (Backward flowing prevention) • Manifold gauge • Stud finder • Torque wrench • Pipe cutter • Reamer Step 1.4 Drilling a hole through the wall 1 Remove the package. 2 Remove the top cushion. 3 Pull out the unit from the bottom cushion. CAUTION Centre hook (A) General tools NOTE • 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. Step 2.3 Connecting the power and communication cables (assembly cable) B Vinyl tape (2) Rubber leg (4) Step 2.2 Disassembling the installation plate 2 Drill the hole. 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. • 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 for test operation • Thermometer • Resistance meter 1 Open the indoor unit package. 2 Remove the left and right cushions. 3 Pull out the unit from the package. Remote control holder (1) 1 Remove the cap screws, then the screws. A Recovery • When removing refrigerant from the system for servicing or decommissioning, it is recommended to remove the entire refrigerant. • When transferring refrigerant into cylinders, make sure that only the refrigerant recovery cylinders are used. • All cylinders used for the recovered refrigerant shall be labelled. • Cylinders shall be equipped with pressure relief valves and shut-off valves in a proper order. • Empty recovery cylinders shall be evacuated and cooled before recovery. Tools 3-wire assembly cable (1) Step 2.1 Disassembling the cover panel Step 1.5 Taping the pipes, cables, and drain hose M4 x 12 tapping screw (2) Cap screw (2) Accessories in the outdoor unit package CAUTION Phillips screwdriver Leakage detection methods • The leakage detector shall be calibrated in a refrigerant-free area. • Make sure that the detector is not a potential source of ignition. • The leakage detector shall be set to the LFL (lower flammability limit). • The use of detergents containing chlorine shall be avoided for cleaning because the chlorine may react with the refrigerant and corrode the pipings. • If leakage is suspected, naked flames shall be removed. • If a leakage is found while in brazing, the entire refrigerant shall be recovered from the product or isolated (e.g. using shutoff valves). It shall not be directly released to the environment. Oxygen free nitrogen (OFN) shall be used for purging the system before and during the brazing process. • The work area shall be checked with an appropriate refrigerant detector before and during work. • Ensure that the leakage detector is appropriate for use with flammable refrigerants. 200 • Comply with the length and height limits described in the figure above. Cap screw • Make sure that the work area is well ventilated before performing a hot work. • Ventilation shall be made even during the work. • The ventilation should safely disperse any released gases and preferably expel them into the atmosphere. • Ventilation shall be made even during the work. 8 Pipe bundle hole: Ø 65 mm • Be sure to drill only one hole. Area ventilation • 1500 Cut insulation to have rainwater drained (5 cases) (Unit: mm) Standard for Maximum factory charge 15 Outdoor Unit When installing more than 1 outdoor unit • Make sure that the seals or sealing materials have not degraded. • Safe parts are the ones with which the worker can work in a flammable atmosphere. Other parts may result in ignition due to leakage. • Replace components only with parts specified by Samsung. Other parts may result in the ignition of refrigerant in the atmosphere from a leak. Labelling Unpacking the indoor unit 300 Model Pipe height Step 1.2 Unpacking used while in detection of leakage. Preparation of fire extinguisher Unpacking the outdoor unit 1500 Maximum pipe length • The units are not explosion proof so they must be installed with no risk of explosion. • This product contains fluorinated gases that contribute to global greenhouse effect. Accordingly, do not vent gases into the atmosphere. • Because the working pressure for R-32 is 1.6 times higher than that for R-22, use exclusive pipings and tools specified. In case of replacing an R-22 model with an R-32 model, be sure to replace the conventional pipings and flare nuts with exclusive ones. • The models that use the refrigerant R-32 have a different thread diameter for the charging port to prevent charging failure. Therefore, check its diameter (1/2 inch) in advance. • Servicing shall be performed as recommended by the manufacturer. In case other skilled persons are joined for servicing, it shall be carried out under supervision of the person who is competent in handling flammable refrigerants. • For servicing the units containing flammable refrigerants, safety checks are required to minimise the risk of ignition. • Servicing shall be performed following the controlled procedure to minimize the risk of flammable refrigerant or gases. • Do not install where there is a risk of combustible gas leakage. • Do not place heat sources. • Be cautious not to generate a spark as follows: –– Do not remove the fuses with power on. –– Do not disconnect the power plug from the wall outlet with power on. –– It is recommended to locate the outlet in a high position. Place the cords so that they are not tangled. • If the indoor unit is not R-32 compatible, an error signal appears and the unit will not operate. • After installation, check for leakage. Toxic gas may be generated and if it comes into contact with an ignition source such as fan heater, stove, and cooker.cylinders, make sure that only the refrigerant recovery cylinders are used. Optional accessories CAUTION Air flow direction • To purge air in the refrigerant, be sure to use a vacuum pump. • Note that the refrigerant has no odour. 300 600 Please scan this QR code for detail video of indoor unit installation. <Minimum distances between the hole and the installation plate> Wall-mounted type 掛牆式 Minimum clearances for the outdoor unit 300 Pipe bundle hole Table 1 表 1 (defined according to IEC 60335-2-40:2018) Installation of the outdoor unit Power supply line, fuse, or circuit breaker • 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. • 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. • 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 2.4 Optional: Extending the power cable" in the installation manual. Sea breeze 300 • The recovery system shall operate normally according to the specified instructions and shall be suitable for refrigerant recovery. • In addition, the calibration scales shall operate normally. • Hoses shall be equipped with leak-free disconnect couplings. • Before starting the recovery, check for the status of the recovery system and sealing state. Consult with the manufacturer if suspected. • The recovered refrigerant shall be returned to the supplier in the correct recovery cylinders with the Waste Transfer Note attached. • Do not mix refrigerants in the recovery units or cylinders. • If compressors or compressor oils are to be removed, make sure that they have been evacuated to the acceptable level to ensure that flammable refrigerant does not remain in the lubricant. • The evacuation process shall be performed before sending the compressor to the suppliers. • Only the electrical heating to the compressor body is allowed to accelerate the process. • Oil shall be drained safely from the system. • For installation with handling the refrigerant (R-32), use dedicated tools and piping materials. Because the pressure of the refrigerant, R-32 is approximately 1.6 times higher than that of R-22, failure to use the dedicated tools and piping materials may cause rupture or injury. Furthermore, it may cause serious accidents such as water leakage, electric shock, or fire. • Never install a motor-driven equipment to prevent ignition. Sea breeze 1500 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. • 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. • 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 units if damaged. If problems occur, switch the unit off and disconnect it from the power supply. • 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 personnel only. • The unit contains moving parts, which should always be kept out of the reach of children. • 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. Installation of the product • 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. • 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. • 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, trucks, scaffolding or any other means of elevation won’t be considered in-warranty and will be charged to end user. • The outdoor unit shall be installed in an open space that is always ventilated. 室外機應安裝在通風良好的空間 • The local gas regulations shall be observed. 應遵守當地的燃氣法規 • To dispose the refrigerant, should have a registered chemical waste collector to handle. 應由註冊化學廢物收集者處理製冷劑 • To handle, purge, and dispose the refrigerant, or break into the refrigerant circuit, the worker should have a certificate from an industry-accredited authority. • Do not install the indoor unit in the following areas: 請勿將室內機安裝在以下區域： –– Area filled with minerals, splashed oil, or steam. It will deteriorate plastic parts, causing failure or leakage. 區域充滿礦物質，潑濺的油或蒸汽，它會使塑料部件變 質，導致故障或洩漏 –– Area that is close to heat sources. 靠近熱源的區域 對於使用R-32 製冷劑的產品，將室內機安裝在離 地面1.8 米或 更高的牆上 (請參考表1) 300 • 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. 300 Carefully follow the precautions listed below because they are essential to guarantee the safety of both the air conditioner and the workers. • 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. • Do not use means to accelerate the defrost operation or to clean, other than those recommended by Samsung. • Do not pierce or burn. • Be aware that refrigerants may not contain an odour. 300 Safety Information on Installation –– Area that produces substances such as sulfuric gas, chlorine gas, acid, and alkali. It may cause corrosion of the pipings and brazed joints. 產生硫酸氣體，氯氣，酸和鹼等物質的區域。它可能會導 致管道和釬焊接頭腐蝕 –– Area that can cause leakage of combustible gas and suspension of carbon fibers, flammable dust, or volatile flammables. 可能導致可燃氣體洩漏和碳纖維懸浮，易燃粉塵或揮發性 易燃物的區域 –– Area where refrigerant leaks and settles. 製冷劑洩漏和沈淀的區域 –– Area where animals may urinate on the product. Ammonia may be generated. 動物可能在產品上撒尿的區域。可能會產生氨 • Do not use the indoor unit for preservation of food items, plants, equipment, and art works. This may cause deterioration of their quality. • Do not install the indoor unit if it has any drainage problem. • 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. –– 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. • After compressing it, pull both sides of the wire to make sure it is firmly pressed. Method 1 Step 2.4 Optional: Extending the power cable Spec Crimping pliers MH-14 Connection sleeve (mm) 20xØ6.5 (HxOD) Compress it 4 times. Compress it 4 times. Width 19 mm Contraction tube (mm) 70xØ8.0 (LxOD) Indoor unit Drain hose 5 mm Water Slant upwards Dipped in water 5 mm 5 Wrap it with the insulation tape twice or more and position your contraction tube in the middle of the insulation tape. Three or more layers of insulation are required. Method 1 Insulation tape Insulation tape Wall Slant downwards Shape Connection hose Method 2 1 Prepare the following tools. Tools Assembly pipe 40 mm 5 cm less Method 2 Insulation tape 35 mm Bent Too small clearance Ditch Too small clearance Step 2.9 Shortening or extending the refrigerant pipes (assembly pipe) Drain pan outlet Left Rubber cap Pipe cutter Right Underside <Front view> Pipe CAUTION Pour water in the direction of arrow. • 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. • 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. <Front view> Direction of the drained water Outer diameter (mm) CAUTION Extension drain hose (B) • 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. (A) Step 2.8 Installing and connecting the assembly pipes to the refrigerant pipes (assembly pipe) (B) 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. Extension drain hose Drain hose 20 mm or more • The smaller one is for the liquid refrigerant • The larger one is for the gas refrigerant Vinyl tape • 4 5 6 Torque (N•m) ø 6.35 14 to 18 Outdoor Unit Installation Step 3.1 Fixing the outdoor unit in place Depth (A) Flare dimension (L) ø 6.35 1.3 8.7 to 9.1 ø 15.88 68 to 82 690 to 830 Y 1 Lock the side hooks (D), then centre hooks (B). Then lock the bottom hooks (C) to engage the cover panel in place. ), then assemble the cap screws (A- 2 Fasten the screw (A- A B A ). D C (Unit : mm) Model X Y **09/12******* 507 292 1 Place the outdoor unit as directed on the top of the unit to let the discharged air out properly. 2 Fix the outdoor unit in level to an appropriate support using anchor bolts. Outdoor-to-indoor power cable (three wires) Power cable (three wires) C 2.2 19.3 to 19.7 Communication cable (two wires) Inclined 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 CAUTION • Keep the piping length at a minimum to minimize the additional refrigerant charge due to piping extension. (Maximum allowable piping length: 15 m) • When connecting the pipes, make sure that surrounding objects do not interfere with or contact them to prevent refrigerant leakage due to physical damage. • Make sure that the spaces where the refrigerant pipes are installed comply with national gas regulations. 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. 1 Leave the system in the standby mode. • 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. CAUTION 3 15 minutes Vacuum Pump Control box Liquid service port <Low pressure> Remove the screw for the control box cover 5 Liquid service port <High pressure> For connecting the refrigerant pipes B Gas service port <Low pressure> Soft rubber designed to cut off residual vibration from outdoor unit to rack (not supplied with product) C Liquid service port <High pressure> Connect the gas and liquid refrigerant pipes NOTE • Make sure that the wall can support the weights of the rack and the outdoor unit. • Install the rack close to the column as much as possible. A A 1 2 When error occurs, take necessary measures by referring to the following table. For more information on necessary measures for errors, refer to the service manual. Error indicator LED 1 Display LED 2 Step 3.3 Evacuating the air The outdoor unit is loaded with sufficient R-32 refrigerant. Do not vent R-32 into atmosphere: it is a fluorinated greenhouse gas, covered by Kyoto Protocol, with a Global Warming Potential (GWP) = 675. 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. Step 4.3 Performing final check and trial operation 1 Check the following: LED Display LED 3 / Error Measures for the installer to take • Strength of the installation site • Tightness of pipe connection to detect gas leak / Communication error between indoor and outdoor units • Check the connection wire between the indoor and outdoor units (whether the power cable or communication cable is crossed or not). • Electric wiring connection • Heat-resistant insulation of the pipe • Drainage • Grounding conductor connection • Correct operation (Take the following steps.) , Error on indoor temperature sensor • Check the connection of the connector. Error on indoor heat exchanger • Check the connection of the connector. Error on indoor fan motor • Check the connection of the connector. • Remove foreign substance. (Check for the cause that restrains motor.) display and all LEDs blink. EEPROM/Option error • Re-set options. , Refrigerant flow blocking error • Check if the stop valve is completely open. • Check if there is any blockage in the refrigerant pipe which connects the indoor and outdoor units. • Check for refrigerant leak. Lack of refrigerant (for inverter models only) ❈This LED pattern appears when an error occurs on the outdoor unit. : Blinking, : On • Check if a sufficient amount of refrigerant is additionally charged for the pipe longer than specified in piping codes and standards. • Check for refrigerant leak between valve and pipe connection. Damaged surface (Power) button on the remote control to 2 Press the check the following: • The indicator on the indoor unit lights up. • The airflow blade opens and the fan gears up for operation. (Mode) button to select Cool or Heat modes. 3 Press the Then take the following sub-steps: • In Cool mode, use the Temperature button to set the set temperature to 16 °C. 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. • 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 5 m, you must add 15g of refrigerant R-32 for each extra meter. If you use a pipe shorter than 5 m, the evacuating time is normal. Refer to the Service Manual for further details. 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 2.10 Fixing the installation plate 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 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. CAUTION • The remaining air in the Refrigeration cycle, which contains moisture, may cause malfunction on the compressor. • Always contact the service centre or a professional installation agency for product installation. (Air swing) button to check whether the 4 Press the airflow blades work properly. • Make sure that contamination by other refrigerants does not occur for charging. • To minimize the amount of refrigerant, keep the hoses and lines as short as possible. • The cylinders shall be kept upright. • Make sure that the refrigeration system is earthed before charging. • Label the system after charging, if necessary. • Extreme care is required not to overcharge the system. • Before recharging, the pressure shall be checked with nitrogen blowing. • After charging, check for leakage before commissioning. • Be sure to check for leakage before leaving the work area. 5 Press the (Power) button to stop the trial operation. • Compressor damage may occur if the compressor is run at a negative suction pressure. 1 minute 1 Use stud finder to find out locations of the studs. 2 Fix the plate hanger on two studs. 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. • 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. 2 Insert inert gas into the pipes connected to indoor and outdoor units. 3 Test leakage on the connection parts of the indoor and outdoor units with soap lather or liquid. Test parts for the Test parts for the indoor unit indoor unit Test parts for the Test parts for the indoor unit indoor unit Step 4.2 Running the Smart Install mode (Power), (Mode), and (SET / 2 Hold down the Temperature type (℃↔℉)) buttons on the remote control simultaneously for 4 seconds. 3 Wait until Smart Install mode succeeds or fails. It takes approximately 7 to 13 minutes. • While Smart Install mode is proceeding: Type Display Off LED Display LED1 R-22: Thread of the screw - 7/16-2OUNF R-410A/R-32 : Thread of the screw -1/2-2OUNF Tightening torque for charging port cap (Refer to the table) Tightening torque Outer diameter (mm) Charging port cap (N•m) 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 10 to 12 Maintenance Procedures Indoor unit indicator LED3 The progress is displayed as a number between 0 and 99 on the indoor unit display. The LEDs on the indoor unit display blink in sequence, then all of them blink simultaneously. These operations repeat. • When Smart Install mode succeeds: Smart Install mode ends with ringing sound, and the air conditioner is in standby status. • When Smart Install mode fails: An error message is displayed on the indoor unit display, and Smart Install mode ends. NOTE • Smart Install mode can be operated only with the supplied remote control. • During the Smart install mode procedure, remote control cannot be operated. 3 Before starting the process, make sure that: • Any mechanical equipment is available for handling refrigerant cylinders. Performing the gas leak tests for repair • All PPE (personal protective equipment) is available for servicing. In case of repair of the refrigerant circuit, the following procedure must be kept to consider flammability. • The recovery process shall be supervised by a competent person. 1 Remove the refrigerant. • The recovery equipment and cylinders comply with the standards. 2 Purge the refrigerant circuit with inert gas. 3 Perform evacuation. 4 Purge the circuit again with inert gas. 5 Open the circuit. 9 Repeat the previous steps several times until no refrigerant is within the system. 4 Lower the refrigeration system, if possible. 5 If vacuuming is not possible, make a manifold so that refrigerant can be easily removed from the parts of the system. 6 Make sure that the cylinders are placed on the scales before recovery. 7 Run the recovery system in accordance with the manufacturer’s instructions. 8 Do not overcharge the cylinders. (No more than 80 %) 9 Be sure to keep the cylinder within the maximum working pressure, even temporarily. 10 After charging, make sure that the cylinders and the equipment are promptly removed from the site and all isolation valves are closed. 11 Recovered refrigerant shall not be charged into other refrigeration system unless it is cleaned and checked. • The procedure is absolutely vital in case of brazing on the pipings. • Make sure that the outlet of the vacuum pump is not closed to any ignition sources and there is ventilation available. • Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the air condiitoner. Decommissioning WARNING –– 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. Charging core • For the final nitrogen blowing charge, the system shall be ventilated down to atmospheric pressure. Gas service port <Low pressure> 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. LED2 Spindle • Flush the system with nitrogen blowing, fill the refrigerant until the working pressure is reached, ventilate to atmosphere, and then pull down to a vacuum state. 1 2 36 Tightening torque for body cap (Refer to the table) CAUTION 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. • After installing the product, be sure to perform leak tests on the piping connections. After pumping down refrigerant to inspect or relocate the outdoor unit, be sure to stop the compressor and then remove the connected pipes. 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.) • Compressed air or oxygen shall not be used. Pumping down for removing the product 81 1 Make sure that the air conditioner is in the standby status. Installation Inspection 8 Flush the system with nitrogen blowing for safety. CAUTION Liquid service port <High pressure> 120 In addition to the conventional charging procedure, the following requirements shall be kept. 6 Perform repair work. • After 12 minutes of stationary condition, check the indoor unit air treatment. 36 Precautions on adding the R-32 refrigerant 7 Charge the system with refrigerant. • Check whether, approximately 3 to 5 minutes later, the outdoor unit starts, and a cool air blows out. **09/12******* You can install the indoor unit on a wall, window frame, or gypsum board. ( 1 N•m = 10 kgf•cm ) • In Heat mode, use the Temperature button to set the set temperature to 30 °C. D When fixing the indoor unit on a gypsum board Step 4.1 Performing the gas leak tests Remove the gas and liquid service port caps C Uneven thickness (Backward ﬂowing prevention) Soft rubber designed to cut off vibration from rack to wall (not supplied with product) B Cracked <Flare nut> Outer diameter (mm) 4 C When fixing the indoor unit on a window frame Connecting pipe Valve B 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. Correct D 1 : Off, 16.2 to 16.6 ø 15.88 Optional: Fixing the outdoor unit to a wall with a rack 2 ❈ 12.8 to 13.2 • Be sure to fix the power cables and communication cable with a cable clamp. NOTE • Secure the rubber legs to help prevent the generation of noise and vibration. • If the outdoor unit is exposed to strong winds, install shield plates around the outdoor unit so that the fan can operate correctly. B 1.8 2.0 WARNING Rubber leg A Pipe bundle hole: Ø 65 mm Flare nut CAUTION F2 ø 9.52 ø 12.70 Indoor outlet pipe Model Gas service port <Low pressure> (Unit: mm) D Outer diameter (D) F1 Step 2.12 Assembling the cover panel Flare 350 to 430 NOTE If you want to shorten or extend the pipes, see Step 2.9 Shortening or extending the refrigerant pipes (assembly pipe). Cut off the remaining foam insulation. 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. Pass the pipe through the hole in the wall. C (Unit : mm) Liquid service port <High pressure> R 0.4 to 0.8 Pipe Wall B L 500 to 620 N Plastic anchor 45°±2° 49 to 61 Step 3.2 Connecting the power and communication cables and the refrigerant pipes When fixing the indoor unit on a wall Fix the installation plate to the wall giving attention to the weight of the indoor unit. 90°±2° A 34 to 42 NOTE • 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. 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. 20 mm ø 9.52 L • Make sure that the pipe bundle does not move when you install the indoor unit onto the installation plate. Burr ø 12.70 X CAUTION Rough D 140 to 180 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: Step 2.11 Fixing the indoor unit to the installation plate Oblique 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. There are 2 refrigerant pipes of different diameters: Foam insulation 90° 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. 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: <Side view> Step 2.6 Optional: Extending the drain hose Drain hose (A) Rear right or left <Side view> • Be sure to perform works such as additional refrigerant charging and pipe welding under the conditions of good ventilation. • Be sure to perform welding and piping works for mechanical connections under the conditions that the refrigerant does not circulate. • When reconnecting the pipes, make sure to perform flared-jointing newly to prevent refrigerant leakage. • When working on the refrigerant pipes and the flexible refrigerant connectors, be careful that they are not damaged physically by surrounding objects. • 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. D Step 2.7 Optional: Changing the direction of the drain hose A 2 Pour water into the drain pan. Check whether the hose is well drained. The following requirements must be fulfilled before and while taking the decommissioning procedure: • Before decommissioning, the worker shall be familiar with the product details. • The entire refrigerant shall be recovered safely. • Before starting the process, oil and refrigerant samples shall be taken just in case analysis is required for reuse. • Before starting the process, power supply must be available. 1 Be familiar with the equipment details. 2 Isolate the system electrically. This appliance is filled with R-32.
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