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. • This product has been determined to be in compliance with the Low Voltage Directive (2006/95/EC) and the Electromagnetic Compatibility Directive (2004/108/EC) of the European Union. • 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. • 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. –– 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 • 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.) • 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. • After completing the installation, always carry out a functional test and provide the instructions on how to operate the air conditioner to the user. When installing more than 1 outdoor unit (5 cases) Unpacking the outdoor unit (Unit: mm) 1 Remove the package. Outdoor unit Outdoor unit Sea • If you cannot avoid installing the outdoor unit at the seaside, construct a protection wall around to block the sea breeze. 125 mm or more • Always verify that the cut-off and protection switches are suitably dimensioned. 600 Sea breeze Maximum pipe height: 15 m Maximum pipe length: 30 m • 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. Top view Make at least one round to reduce noise and vibration. Side view When installing 1 outdoor unit (6 cases) (Unit: mm) The actual units may look different from the images depicted here. –– When extension wiring is required due to power line damage, refer to "Step 2.4 Optional: Extending the power cable" in the installation manual. 2000 (Unit : m) Pipe length Model ✴✴09/12✴✴ME/TC ✴✴10/13✴✴UN Protection wall Outdoor unit Maximum Maximum 3 15 7 ✴✴09/12✴✴SS 3 15 8 ✴✴18/24✴✴ME/UN 3 20 12 ✴✴18/24✴✴SS/TC 3 30 15 CAUTION Outer wall Outdoor unit Protection wall Pipe height Minimum Outdoor Unit Sea Air flow direction Drain hose hole You can select the direction of draining (left or right). • 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. • 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. Indoor Unit • Install the unit in a place where water can drain smoothly. 150 600 300 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. Cut insulation to have rainwater drained • 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.) Optional accessories Insulated assembly pipe, Ø 6.35 mm (1) 2 Remove the top cushion. 125 mm or more –– It may cause electric shock or fire due to poor connection, poor insulation, or current limit override. Sea Minimum clearance in mm 100 mm or more • Be sure not to perform power cable modification, extension wiring, and multiple wire connection. Sea breeze • 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. • 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. Wall 1500 • Verify that the air conditioner is not installed in an easily accessible area. • The unit contains moving parts, which should always be kept out of the reach of children. Overview of installation location requirements 1500 • Verify that installation and testing operations are performed by qualified personnel. • 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 verify that a suitable grounding connection is available. Minimum clearances for the outdoor unit 300 • Always disconnect the air conditioner from the power supply before servicing it or accessing its internal components. • Always remember to inspect the unit, electric connections, refrigerant tubes and protections regularly. These operations should be performed by qualified personnel only. Step 1.1 Choosing the installation location 1500 Carefully follow the precautions listed below because they are essential to guarantee the safety of both the air conditioner and the workers. • 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 make sure that the power supply is compliant with current safety standards. Always install the air conditioner in compliance with current local safety standards. CAUTION • Comply with the length and height limits described in the figure above. 300 • 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, trucks, scaffolding or any other means of elevation won’t be considered in-warranty and will be charged to end user. Preparation 300 Safety Information on Installation DB68-06570B-00 Power supply line, fuse, or circuit breaker 300 AR✴✴HVSS✴✴, AR✴✴JVFS✴✴, AR✴✴KVFS✴✴, AR✴✴KVFN✴✴, AR✴✴MVFS✴✴, AR✴✴MVFN✴✴ • 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. 500 Installation manual Insulated assembly pipe, Ø 9.52 mm (1) ✴✴09/10/12/13✴✴ 2-wire assembly cable (1) ✴✴18/24✴✴TC ✴✴09/12/18/24✴✴SS 1-wire assembly cable (1) ✴✴24✴✴ME/UN 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. Wall 3 Pull out the unit from the bottom cushion. 600 3000 3000 200 300 1500 1500 600 600 Right Installation plate (1) ✴✴10✴✴UN <The hole slants downwards> Rear right or left Step 1.5 Taping the pipes, cables, and drain hose Bottom right Drain Hose, 2 m long (1) Installation plate (1) ✴✴18✴✴SS/TC ✴✴24✴✴ <Possible directions of the pipe bundle> NOTE Installation plate (1) ✴✴13/18✴✴UN Pipe clamp B (3) 300 600 Left Insulated assembly pipe, Ø 15.88 mm (1) ✴✴24✴✴ Accessories in the indoor unit package Installation plate (1) ✴✴09/12✴✴ ✴✴18✴✴ME Pipe clamp A (3) Vinyl tape (2) 600 • 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. 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. Tools Remote control holder (1) PE T3 foam tube insulation (1) Putty 100 g (1) 500 300 • Pipe bender • Vacuum pump (Backward flowing prevention) • Spirit level M4 x 25 tapped screw (6) • Drill • L-wrench • Pipe cutter Remote control battery (2) Tools for test operation • 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. Step 1.2 Unpacking 4-wire assembly cable (1) ✴✴09/12✴✴TC ✴✴09/12/18✴✴ME ✴✴10/13/18✴✴UN Cement nail (6) Installation Manual (1) Cap screw (2) Unpacking the indoor unit 3-wire power cable (1) ✴✴18/24✴✴TC ✴✴09/12/18/24✴✴SS 1 Open the indoor unit package. 2 Remove the left and right cushions. • Measuring tape • Reamer Users Manual (1) 3-wire assembly cable (1) ✴✴18/24✴✴TC ✴✴24✴✴ME/UN ✴✴09/12/18/24✴✴SS Installation Manual (1) 3 Pull out the unit from the package. Step 2.2 Disassembling the installation plate ✴✴09/12/18/24✴✴SS ✴✴18/24✴✴TC ✴✴09/12✴✴TC ✴✴10/13/18/24✴✴UN ✴✴09/12/18/24✴✴ME N(1) 1 2 1(L)2(N) F1 F2 Model A B C D ✴✴10✴✴UN 36 60 65 36 ✴✴09/12✴✴ ✴✴13✴✴UN 36 120 81 36 ✴✴18✴✴ME/UN 36 190 81 36 ✴✴18✴✴TC/SS ✴✴24✴✴ 33 110 110 33 • Spanner • Stud finder • Torque wrench CAUTION • Thermometer • Resistance meter Step 1.4 Drilling a hole through the wall 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. contact during installation. • 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 meters (✴✴09/12/18✴✴) and 20 metres (✴✴24✴✴). • Each circular terminal must match the size of its corresponding screw in the terminal block. Screw CAUTION • Make sure that the hole slants downwards so that the drain hose slants downwards to drain water well. Flat-head screwdriver 2 Unlock the side hooks ( , ), then centre hooks ( ). Then unlock the bottom hooks ( ) to pull out the cover panel. Step 2.3 Connecting the power and communication cables (assembly cable) Model ✴✴09/12✴✴ME/TC ✴✴10/13✴✴UN ✴✴18✴✴ME/UN ✴✴24✴✴ME/UN Power cable (Indoor unit) 3G X 1.0 mm², H05VV-F 3G X 1.5 mm², H05VV-F 3G X 2.5 mm², H05VV-F Indoor-toOutdoor power cable 4G X 1.5 mm², H07RN-F 4G X 1.5 mm², H07RN-F 3G X 1.0 mm², H07RN-F 1 X 0.75 mm², H05RN-F Type GL 20 A 25A 25A Model ✴✴09/12✴✴SS Power cable (Outdoor unit) A Outdoor-toIndoor power cable A B C Control box B Centre hook (A) Bottom/Side hook (B/C) Before connecting Correct Upside down Damaged Noncircular 2 1 After connecting 3G X 1.0 mm², H07RN-F Communication cable Type GL ✴✴18/24✴✴SS/TC 3G X 2.5 mm², H07RN-F 2 X 0.75 mm², H05RN-F 20 A 25 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). NOTE Correct Correct (Front view) (Side view) <Circular terminal> Upside down Non-fitted • 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) 4 • Power & Communication cable shall not exceed 30m. Power and communication cables (assembly cable) Drain hose Indoor Unit Installation • Ensure that power and communication cables are separated, they must not be in the same cable. 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.) Step 2.4 Optional: Extending the power cable 1 Prepare the following tools. Tools Spec Crimping pliers MH-14 Connection sleeve (mm) 20xØ6.5 (HxOD) Insulation tape Width 19 mm Contraction tube (mm) 70xØ8.0 (LxOD) 2 As shown in the figure, peel off the shields from the rubber and wire of the power cable. Step 2.1 Disassembling the cover panel 1 Remove the cap screws, then the screws. Method 2 Insulation tape 20 20 120 180 (Unit: mm) Pre-installed tube for the power cable 20 Insulation tape 20 60 40 mm 35 mm 6 Apply heat to the contraction tube to contract it. Contraction tube (Unit: mm) 3 Insert both sides of core wire of the power cable into the connection sleeve. 7 After tube contraction work is completed, wrap it with the insulation tape to finish. • 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 Method 2 Connection sleeve Shape Please scan this QR code for detail video of indoor unit installation. Method 1 Power cable • After connecting the cables, make sure that terminal numbers on the indoor and outdoor units match. Fasten the screws for the wire holders. Phillips screwdriver Vinyl tape 2 Drill the hole. • Be sure to drill only one hole. Refrigerant pipes (assembly pipe) Installation plate Pipe bundle hole: Ø 65 mm • Electroscope • Do not connect two or more different cables to extend the length. This connection may cause fire. Cap screw Refrigerant pipes <Minimum distances between the hole and the installation plate> (Unit : mm) • Screwdriver • Manifold gauge Drain plug (1) Insulation 2 Wind the refrigerant pipes, power cable, communication cable and drain hose with vinyl tape to make a pipe bundle. General tools Remote control (1) 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. Pipe bundle hole 300 500 300 Drain hose Indoor unit Rubber leg (4) Insulated assembly pipe, Ø 12.70 mm (1) ✴✴18✴✴ Accessories 1500 600 Accessories in the outdoor unit package Step 1.3 Checking and preparing accessories and tools Connection sleeve 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. 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 • 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. Compression dimension • After compressing it, pull both sides of the wire to make sure it is firmly pressed. Method 1 Method 2 Compress it 4 times. Compress it 4 times. • 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. 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. Three or more layers of insulation are required. CAUTION • 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 IM_TC_INV.indd 1 12/22/2016 12:57:52 PM Step 2.5 Installing and connecting the Step 2.6 Optional: Extending the drain hose drain hose Drain hose (A) 1 Install the drain hose. Extension drain hose (B) CAUTION • 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 2.8 Installing and connecting the assembly pipes to the refrigerant pipes (assembly pipe) (A) Drain hose 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. (B) Connection hose Extension drain hose Drain hose Wall Indoor unit Drain hose Water Slant downwards Slant upwards Foam insulation • The larger one is for the gas refrigerant 5 cm less Bent Too small clearance Too small clearance 2 Pour water into the drain pan. Check whether the hose is well drained. Step 2.7 Optional: Changing the direction of the drain hose 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 Left • If you want to shorten or extend the pipes, see Step 2.9 Shortening or extending the refrigerant pipes (assembly pipe). • The pipe should not project from the rear of the indoor unit. • 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. CAUTION Underside 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. • Inadequate installation may cause water leakage. When fixing the indoor unit on a wall Step 2.11 Fixing the indoor unit to the installation plate Outdoor Unit Installation • Install the rack close to the column as much as possible. Step 3.2 Connecting the power and communication cables and the refrigerant pipes Y D A C (Unit : mm) Model A B C D ✴✴10✴✴UN 36 60 65 36 CAUTION Model Step 2.12 Assembling the cover panel ✴✴09MV✴✴ME/TC ✴✴10/13MV✴✴UN 436 265 ✴✴09KV✴✴ME ✴✴10✴✴UN 453 254 ✴✴09/12✴✴ ✴✴09JV✴✴TC ✴✴13KV✴✴UN 507 292 33 120 81 36 1 Lock the side hooks (D), then centre hooks (B). Then lock the bottom hooks (C) to engage the cover panel in place. ✴✴18✴✴ME/UN 33 190 81 36 2 Fasten the screw (A(A- ). 33 110 110 Rubber leg • Make sure that the pipe bundle does not move when you install the indoor unit onto the installation plate. ✴✴09/12✴✴ ✴✴13✴✴UN ✴✴18✴✴TC/SS ✴✴24✴✴ ), then assemble the cap screws 33 Pipe bundle hole: Ø 65 mm A 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. B A B D C (Unit : mm) X Y N(1) D 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. B B When fixing the indoor unit on a gypsum board Outdoor-to-indoor power cable (three wires) ✴✴18✴✴ 602 310 ✴✴18HV✴✴SS ✴✴24✴✴ 660 340 C Tightening torque for body cap (Refer to the table) Charging core 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 Flare nut Uneven thickness Damaged surface <Flare nut> Flare dimension (L) 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. Connecting pipe 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 Step 2.10 Fixing the installation plate You can install the indoor unit on a wall, window frame, or gypsum board. 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. A • 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 the length specified in the piping codes and standards, you must add 15 g of refrigerant R-410A for each extra meter. 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 on 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. Before recharging, check whether the cylinder has a siphon or not. There are two ways to recharge the refrigerant: 3 4 Siphon 15 minutes Vacuum Pump (Backward flowing prevention) For connecting the refrigerant pipes Charge the refrigerant standing the cylinder upright. Charge the refrigerant turning the cylinder upside down. <Cylinder with siphon> <Cylinder without siphon> Liquid service port <Low pressure> 5 A Connect the gas and liquid refrigerant pipes Step 4.2 Running the Smart Install mode 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 1 Make sure that the air conditioner is in the standby status. LED 1 Display LED 2 LED 3 / 3 Wait until Smart Install mode succeeds or fails. It takes approximately 7 to 13 minutes. Error Measures for the installer to take 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). / • While Smart Install mode is proceeding: Type Display LED Display , 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. ends with ringing sound, and the air conditioner is in ø 9.52 20 to 25 standby status. ø 12.70 25 to 30 ø 15.88 30 to 35 Over ø 19.05 35 to 40 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. • When Smart Install mode succeeds: Smart Install mode EEPROM/Option error • Re-set options. , Refrigerant flow blocking error • When Smart Install mode fails: An error message is • 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. displayed on the indoor unit display, and Smart Install mode ends. • Check for refrigerant leak. NOTE Lack of refrigerant (for inverter models only) • Smart Install mode can be operated only with the supplied remote control. ❈This LED pattern appears when an error occurs on the outdoor unit. • During the Smart install mode procedure, remote control cannot be operated. ❈ : Off, : Blinking, : On Step 4.3 Performing final check and trial operation 1 Check the following: LED Display (Power), (Mode), and (SET) 2 Hold down the buttons on the remote control simultaneously for 4 seconds. 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. Soft rubber designed to cut off residual vibration from outdoor unit to rack (not supplied with product) 20 to 25 3 Test leakage on the connection parts of the indoor and outdoor units with soap lather or liquid. 2 Connect the charging hose of the low pressure side of manifold gauge to a gas service port as seen in the picture. Valve 2 ø 6.35 2 Insert inert gas into the pipes connected to indoor and outdoor units. • Do not turn on the system! This is necessary for better vacuum operation (full OPEN position of Electronic Expansion Valve). Control box Liquid service port <High pressure> Tightening torque ( 1 N•m = 10 kgf•cm ) 1 Leave the system in the standby mode. Liquid service port <High pressure> 1 Tightening torque for charging port cap (Refer to the table) 10 to 12 • 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. • 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. NOTE Indoor unit indicator Charging port cap (N•m) CAUTION Gas service port <Low pressure> LED2 R-22: Thread of the screw - 7/16-2OUNF R-410A: Thread of the screw -1/2-2OUNF Communication cable (two wires) 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. Remove the screw for the control box cover Remove the gas and liquid service port caps LED1 Spindle Power cable (three wires) CAUTION C • Fix the installation plate without inclining to one side. 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.) F2 • Be sure to fix the power cables and communication cable with a cable clamp. 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. Test parts for the Test parts for the indoor unit indoor unit Depth (A) Cracked (Unit: mm) D WARNING Soft rubber designed to cut off vibration from rack to wall (not supplied with product) 2 Fix the plate hanger on two studs. Body cap (N•m) Outer diameter (D) Optional: Fixing the outdoor unit to a wall with a rack 1 Use stud finder to find out locations of the studs. Step 4.1 Performing the gas leak tests F1 2 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. 3 Attach the installation plate to the wooden upright using tapping screws. Installation Inspection 1 N 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. 2 1 ✴✴09/12/18/24✴✴SS ✴✴18/24✴✴TC ✴✴09/12✴✴TC ✴✴10/13/18/24✴✴UN ✴✴09/12/18/24✴✴ME L C When fixing the indoor unit on a window frame Outer diameter (mm) Flare Step 3.3 Evacuating the air • Make sure that the wall can support the weights of the rack and the outdoor unit. X B Pipe • 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. NOTE Step 3.1 Fixing the outdoor unit in place Plastic anchor 20 mm L • While removing burrs, put the pipe face down to make sure that the burrs do not get in to the pipe. Fix the installation plate to the wall giving attention to the weight of the indoor unit. Wall Correct 45°±2° CAUTION 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> • Do not box in or cover the drain hose connection. Drain hose connection must be easily accessible and serviceable. 90°±2° A Inclined <Side view> Direction of the drained water Burr D Indoor outlet pipe <Front view> Rough 5 If necessary, bend the pipe to fit along the bottom of the indoor unit. Then pull it out through the appropriate hole. Rear right or left • If the drain hose is routed inside the room, insulate the hose so that dripping condensation does not damage the furniture or floors. Oblique 90° • Do not box in or cover the pipe connection. All refrigerant pipe connection must be easily accessible and serviceable. Right CAUTION Gas service port <Low pressure> 4 Cut off the remaining foam insulation. Pour water in the direction of arrow. • If the diameter of the connection hose is smaller than the product's drain hose, water leakage may occur. Liquid service port <High pressure> Pipe • 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. Rubber cap • 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. Pipe cutter R 0.4 to 0.8 Drain pan outlet <Front view> Step 2.9 Shortening or extending the refrigerant pipes (assembly pipe) NOTE NOTE 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: Ditch Torque (kgf•cm) 14 to 18 6 Pass the pipe through the hole in the wall. • The smaller one is for the liquid refrigerant Vinyl tape Torque (N•m) ø 6.35 • The bending radius should be 100 mm or more. There are 2 refrigerant pipes of different diameters: 20 mm or more Dipped in water Outer diameter (mm) • 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. • Strength of the installation site • Tightness of pipe connection to detect gas leak • Electric wiring connection • Heat-resistant insulation of the pipe • Drainage • Grounding conductor connection • Correct operation (Take the following steps.) • 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. CAUTION • 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. (Power) button on the remote control to 2 Press the check the following: 4 Use L-wrench to close the valve on the high pressure side. • The indicator on the indoor unit lights up. • The airflow blade opens and the fan gears up for operation. 5 After approximately 1 minute, close the valve on the low pressure side. (Mode) button to select Cool mode. Then 3 Press the 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. 6 Stop operation of the air conditioner by pressing the (Power) button on the indoor unit or remote control. 7 Disconnect the pipes. 1 (Air swing) button to check whether the 4 Press the airflow blades work properly. 5 Press the 1 minute (Power) button to stop the trial operation. 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. Liquid service port <High pressure> 1 Shut off the liquid valve with the Allen wrench. Gas service port <Low pressure> 2 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.) 3 After 2 minutes of operation, shut the suction valve with the same wrench. Off 4 Turn off the air conditioner and switch mains supply off. 5 Disconnect tubing. After disconnection, protect valves and tubing ends from dust. Test parts for the Test parts for the indoor unit indoor unit IM_TC_INV.indd 2 12/22/2016 12:58:01 PM
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