INSTALLATION MANUAL
Contents
1. T et Binder Accessory Firmly secure the binders so that the Y wire terminals will not Vuse the specified wire type and connect the wires securely receive external stress I One touch bush S Pipe cover front Accessories One touch bush Accessories En 10 7 PIPE INSTALLATION II 7 1 Sealing test Before operating the compressor install the pipes and securely connect them Otherwise if the pipes are not installed and if the valves are open when the compressor operates air could enter the refrigeration cycle If this happens the pressure in the refrigeration cycle will become abnormally high and cause damage or injury After the installation make sure there is no refrigerant leakage If the refrigerant leaks into the room and becomes exposed to a source of fire such as a fan heater stove or burner it produces a toxic gas Do not subject the pipes to strong shocks during the sealing test It can rupture the pipes and cause serious injury For maintenance purposes do not bury the piping of the outdoor unit After connecting the pipes perform a sealing test Make sure that the 3 way valves are closed before performing a sealing test Pressurize nitrogen gas to 4 15 MPa to perform the sealing test2. Add nitrogen gas to both the liquid pipes and the gas pipes Check all flare connections and welds Then check that the pressure has not decreased Compare the pressures after pressurizing and letting it stand for 24 hours and check that the pressure has not decreased If the pressure has dropped the pipe joints may be leaking When the outdoor air temperature changes 5 C the pressure changes 0 05 MPa 0 5 bar When outdoor air temperature raises drops by 5 C the pressure will raise fall by 0 05 MPa accordingly If a leak is found immediately repair it and perform the sealing test again After completing the sealing test release the nitrogen gas from both valves Release the nitrogen gas slowly 7 2 Vaccum process Perform a refrigerant leakage test air tightness test to check for leaks using nitrogen gas while all valves in the outdoor unit are closed Use the pressure indicated on the nameplate Be sure to evacuate the refrigerant system using a vacuum pump The refrigerant pressure may sometimes not rise when a closed valve is opened after the system is evacuated using a vacuum pump This is caused by the closure of the refrigerant system of the outdoor unit by the electronic expansion valve This will not affect the operation of the unit If the system is not evacuated sufficiently its performance will drop Use a clean gauge manifold and charging hose that were designed specifically for use wi
3. 2 digits 4 ray 4 C CJN 6 Setting is complete when the lamp lights up Press ENTER button to return to 2 Setting the first 2 digits If there is no operation for 5 seconds after the setting the display will return to 2 Setting the first 2 digits SELECT eua Blinking Y y Continue to press the SELECT button until the E desired number appears at the last 2 digits SELECT T SELECT ENTER n i u e a18 4 e B t Blinking i 1 Blinking Blinking 1 ENTER 1 MODE EXIT i Press the ENTER button for 1 more than 3 seconds 1 SELECT 1 1 rm 4 i Heli 1 1 l Setting is complete when the lamp lights up 1 1 If there is no operation for 5 seconds after the setting the display will return to 2 Setting the first 2 digits I 1 ma E a et jT SN SALA SAS SEA ADA a NE EN AN SE Y Press the MODE EXIT button to cancel the setting mode EXIT En 14 9 TEST OPERATION 4 Press and hold the CHECK button again for more than 3 seconds The Check run will start In the Check run the following items will be checked 9 1 Check run D The wiring and piping between the indoor units and the Branch box Valve opening After performing the repairs inspections etc always carry out the Check run Normal To make an enforced stop pres
4. Separation tube NO GOOD Liquid pipe Gas pipe 5 3 Flare connection pipe connection Do notuse mineral oil on a flared part Prevent mineral oil from getting into the system as this would reduce the lifetime of the units While welding the pipes be sure to blow dry nitrogen gas through them The maximum lengths of this product are shown in the table If the units are further apart than this correct operation cannot be guaranteed 5 3 1 Flaring Use special pipe cutter and flare tool exclusive for R410A 1 Cut the connection pipe to the necessary length with a pipe cutter 2 Hold the pipe downward so that the cuttings will not enter the pipe and remove any burrs 3 Insert the flare nut always use the flare nut attached to the indoor and outdoor units respectively onto the pipe and perform the flare processing with a flare tool Leakage of refrigerant may result if other flare nuts are used 4 Protect the pipes by pinching them or with tape to prevent dust dirt or water from entering the pipes Check if L is flared uniformly B and is not cracked or scratched M Die tA K T Pse 6 35 1 4 9 1 9 52 3 8 Swis 13 2 12 70 1 2 16 6 15 88 5 8 197 When using conventional flare tools to flare R410A pipes the dimension A should be approximately 0 5mm more than indicated i
5. location with sufficient space for the refrigerant piping Observe the installation space specifications that are shown in the figures Provide the same space for the air intake at the rear of the outdoor unit If the installation is not performed according to the specifications it could cause a short circuit and result in a lack of operating performance As a result the outdoor unit might easily be stopped by high pressure protection Air intake Rear view Installation methods not shown in the following examples are not recommended Performance may drop significantly En 4 3 3 1 Single outdoor unit installation When the upward area is open Unit mm 2 Obstacles at rear and sides only 1 Obstacles at rear only 1000 or more 1000 or more When an obstruction is present also in the upward area Unit mm 1 Obstacles at rear and above only 2 Obstacles at rear sides and above only 1000 300 oar Max 500 250 3 3 2 Multiple outdoor unit installation Provide at least 25mm of space between the outdoor units if multiple units are installed When routing the piping from the side of an outdoor unit provide space for the piping No more than 3 units must be installed side by side When 3 units or more are arranged in a line provide the space as shown in the following example when an obstruction is present also in the upward area When the upward area is open Unit m
6. operated in the P oFF state Please turn on the power supplies of all units again in case of performing operation MODEJEXIT Press the MODE EXIT button SELECT Press the SELECT button ENTER Press the ENTER button 7 seg display MODE EXIT T SELECT x2 F ih F 3 Blinking Blinking ENTER Y e 1 1 glsl Blinking Blinking SELECT x3 ENTER 7 5 Installing insulation Use an insulation on the refrigerant pipes to prevent condensation and dripping Determine the thickness of the insulation material by referring to Table A Table A Selection of insulation for using an insulation material with equal heat transmission rate or below 0 040 W m k 6 35 1 4 8 10 13 17 uu 9 52 3 8 9 11 14 18 Pipe diamet ipe diameter 12 70 1 2 10 12 15 19 15 88 5 8 10 12 16 20 If the ambient temperature and relative humidity exceed 32 C increase the level of heat insulation for the refrigerant pipes 7 6 Filling with putty Fill the piping holes and wiring holes with putty supplied locally to avoid any gap Fig A If small animals such as insects enter the external unit a short circuit may be caused near electrical components in the service panel If the outdoor unit is installed at a level that is higher
7. set to the Peak cut mode by applying the contact input of a commercial ON OFF switch to a connector on the outdoor control PC board Set the Peak cut mode level refer to 8 2 Function settings Input Signal ON Peak cut mode OFF Normal operation Input Signal ON OFF Peak cut mode ON OFF 10 2 5 Stop operation mode CN934 lt is possible to switch to Batch stop or Emergency stop and Normal operation by using external input Set the Batch stop or Emergency stop pattern refer to 8 2 Function settings When function setting is Batch stop mode Input signal Of Operation Ind it ndoor uni Stop Remote controller On Input signal Off t Operation Indoor unit Stop d On Remote controller En 18 10 3 External output 10 3 1 Wiring of connector When installing connection cable specified part optional parts must be used Output Connector Error status CN951 Compressor status CN952 Circuit diagram example Outdoor unit Connection Connected unit control PC board cable Field supply pee i i Vcc Vec ji B Power I supply Load 10m Make the distance from the PC board to the connected unit within 10m 1 Power supply Voltage Chart sign Vcc DC 24V or less 2 Load Load DC 500mA or less is recommended 10 3 2 Error status output CN951 An air conditioner error s
8. supply cable Connection cable 25 3 cable Ground 1 230V 1 Selected sample Select the correct cable type and size according to the country or region s regulations Max wire length Set a length so that the voltage drop is less than 2 Increase the wire diameter when the wire length is long Circuit breaker over current Current 32 A Earth leakage breaker Leakage current 30mA 0 1sec or less 3 2 Selectthe appropriate breaker of the described specification according to the national or regional standards 3 Select the breaker that enough load current can pass through it Use conformed cable with Type245 IEC57 Before starting work check that power is not being supplied to all poles of the indoor unit and outdoor unit Install all electrical works in accordance to standard Install the disconnect device with a contact gap of at least 3mm in all poles nearby the units Both indoor unit and outdoor unit Wiring size must comply with the applicable local and national code 6 4 Unit wiring When stripping off the coating of a lead wire always use a special tool such as a wire stripper If there is no special tool available carefully strip the coating with a knife etc po ji Power supply cable Earth cable Us How to connect wiring to the terminal Caution when wiring cable 1 Use crimp type terminals with insulating sleeves as shown in the figure to connect
9. y 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 i branch boxes 1 1 1 1 then perform the Check run 1 a 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Press and hold for CHECK more than 3 seconds currently operating i The Check run can be completed within 1 hour but may take several hours depending on the external and internal temperature conditions etc Please do not conduct the Check run with all the windows in the room closed Otherwise the room temperature could get too low or too high Depending on the difference of the room temperature of each room a judgment may be impossible ra Ex Mode Heat r LS HAH 8 Indoor units 9 1 3 Operating procedure for Check run 1 Turn power on the outdoor unit indoor units and branch boxes After the displayed number of 8888 has been turned off press the CHECK button approximately 2 minutes 2 Press and hold the CHECK button for more than 3 seconds 3 The number of connected branch boxes and indoor units will be displayed on the 7 seg display Check that the displayed number matches the actual number of connected units Do not perform the Check run if the displayed number of units is in error If the Check run was performed with the number of units in error check the state of the units and then
10. L BRANCH BOX2 BRANCH BOX OUTDOOR UNIT REMOTE OUT OUT or BRANCH BOX REMOTE OUT OUT or BRANCH BOX REMOTE OUT OUT or BRANCH BOX CONTROLLER IN INDOOR UNITA INDOOR UNIT B INDOOR UNIT C POWER CONTROLLER IN CONTROLLER IN INDOOR UNITA INDOOR UNIT B INDOOR UNIT C POWER INDOOR UNITA INDOOR UNIT B INDOOR UNIT C POWER Indoor Indoor uhit Indoor Indoor Indoor Indoor Indoor unit unit unit unit unit Z1 Z Z1 LL Nj LLIN LNS Single phase Single phase Single phase 230V 50Hz 230V 50Hz 230V 50Hz GG Connectind of WiNA i 3 Secure the cables using the binders under the terminal blocks and then secure NC g g the cables using the binders attached to the base of the valves 1 Remove the service covers and insulation sheet And connect the wires to the terminal in accordance with the terminal nameplate Fig A Fig B 2 After connecting the wires use binders to secure the wires Fig B Connect the wires without applying excessive tension Binder N A Fig A Accessory 4 Be sure to install the insulation sheet after the wiring is complete Installation method of One touch bush Please fix the One touch bush accessory as shown in the figure below Front connection Lateral connection Rear connection e Service cover BEET me Terminal block Please remove the excess RE p L Binder Binder Accessory nir
11. ator lamp LED981 is on and the ERROR indicator lamp LED982 is off Ifthe ERROR indicator lamp LED982 flashes it indicates that an error has occurred Check wiring and power supply After making sure that the ERROR indicator lamp LED982 has turned off proceed to the next step On Off LED981 LED982 POWER ERROR MODE LED961 LED962 EE Off When the system is normal Off En 12 8 2 Function settings Various functions can be set Set when necessary Perform settings after all indoor units have stopped operation Refer to Table A for the items that can be set Table A List of Settings Standard 0 0 Please set this item when cooling ability is inadequate 1 Cooling capacity shift High power mode1 0 1 If cooling ability is inadequate due to the setting of High power mode1 High power mode2 0 2 please set it to High power mode2 Batch stop 0 0 This mode selects the pattern of the stop function to be operated by the Emergency stop 0 1 external input terminal CN934 Batch stop The stop of all indoor units connected to same refrigerant Switching between batch system due to input signal coming from CN934 20 ii HEH poime stop or emergency stop Emergency stop The air conditioner returns to the original operation if input from
12. be and second b _ 15 88 5 8 9 52 3 8 separation tube Between separation tube and branch box cde E 15 88 5 8 9 52 3 8 7 9 12 9 52 3 8 06 35 1 4 f g h i Between branch box and indoor unit 14 18 12 70 1 2 06 35 1 4 j k I m 24 15 88 5 8 06 35 1 4 En 6 Pipe material It is necessary to use seamless copper pipes and it is desirable that the amount of residual oil is less than 40mg 10m Do not use copper pipes having a collapsed deformed or discolored portion especially on the interior surface Otherwise the expansion valve or capillary tube may become blocked with contaminants As an air conditioner using R410A incurs pressure higher than when using conventional refrigerant R22 it is necessary to choose adequate materials Thicknesses of copper pipes used with R410A are as shown in the table Never use copper pipes thinner than that in the table even when it is available on the market Thicknesses of Annealed Copper Pipes R410A 6 35 1 4 0 80 9 52 3 8 0 80 12 70 1 2 0 80 15 88 5 8 1 00 19 05 3 4 1 20 JIS H3300 C1220T O or equivalent Please select the pipe size in accordance with local rules 5 PIPE IN LLATION 5 1 Opening a knockout hole Becareful not to deform or scratch the panel while opening the knockout holes To protect the piping insulation after opening a knockout hole remove any burrs from the edge of the hole It is recommen
13. ded to apply rust prevention paint to the edge of the hole Pipes can be connected from 4 directions front lateral side rear side and bottom Fig A When connecting at the bottom remove the service panel and piping cover on the front of the outdoor unit and open the knockout hole provided at the bottom corner of the piping outlet It can be installed as shown on Fig B cutting out the 2 slits as indicated on Fig C When cutting slits use a steel saw Fig A WWW M M I S S N N N S Ni I Uf RUT Service panel Fig B Fig C connection En 7 Front Lateral Bottom Rear connection connection connection connection 5 2 Separation tube connection Use genuine separation tubes for the refrigerant piping branches Separation tubes may be used for piping between the outdoor unit and branch box Select number of separation tubes and purchase it before starting the installation work Any vertical piping shall be in the part of the main piping If a main pipe is bent keep the straight part more than 10 times the diameter of the connected pipe A variance in the amount of refrigerant may be caused if the straight part is short For details refer to the Installation Manual of separation tubes Separation tube A 4 4 B Horizontal B 2 Vertical o Horizontal 15 line is Vs Va A Outdoor unit or Separation tube B Branch box or
14. ed might possibly result in personal harm to the user or damage to property Read carefully all security information before use or install the air conditioner Do not attempt to install the air conditioner or a part of the air conditioner by yourself This unit must be installed by qualified personnel with a capacity certificate for handling refrigerant fluids Refer to regulation and laws in use on installation place The installation must be carried out in compliance with regulations in force in the place of installation and the installation instructions of the manufacturer This unit is part of a set constituting an air conditioner It must not be installed alone or with non authorized by the manufacturer Always use a separate power supply line protected by a circuit breaker operating on all wires with a distance between contact of 3mm for this unit The unit must be correctly grounded and the supply line must be equipped with a differential breaker in order to protect the persons The units are not explosion proof and therefore should not be installed in explosive atmosphere Do not turn on the power until all installation work is complete Never touch electrical components immediately after the power supply has been turned off Electric shock may occur After turning off the power always wait 5 minutes before touching electrical components This unit contains no user serviceable parts Alway
15. er install a power factor improvement condenser Instead of improving the power factor the condenser may overheat Before servicing the unit turn the power supply switch OFF Then do not touch electric parts for 10 minutes due to the risk of electric shock Make sure to perform grounding work Improper grounding work can cause electric shocks En 8 The primary power supply capacity is for the air conditioner itself and does not include the concurrent use of other devices Do not use crossover power supply wiring for the outdoor unit If the electrical power is inadequate contact your electric power company Install a breaker in a location that is not exposed to high temperatures If the temperature surrounding the breaker is too high the amperage at which the breaker cuts out may decrease Use a breaker that is capable of handling high frequencies Because the outdoor unit is inverter controlled a high frequency breaker is necessary to prevent a malfunction of the breaker itself When the electrical switchboard is installed outdoors place it under lock and key so that it is not easily accessible Do not fasten the power supply cable and connection cable together Always keep to the maximum length of the connection cable Exceeding the maximum length may lead to erroneous operation The static electricity that is charged to the human body can damage the control PC Board when ha
16. essing the SELECT button When the error display appears even though the measures for error are taken Switch on the power again after turning off the power When the power is turned on again after turned off wait approx 10 minutes and turn on the power again Example When Discharge thermistor error and Compressor thermistor error occurred SELECT Press the SELECT button ENTER Press the ENTER button lt gt e ENTER SELECT Y E ije an Serial communication error Check run unfinished Wiring mistake Indoor unit capacity error Connection unit number error indoor unit Connection unit number error branch unit Indoor unit error Outdoor unit P C B model information error Inverter error Active filter error P F C circuit error Trip terminal L error Display P C B communication error Discharge temp sensor error Compressor temp sensor error Outdoor unit Heat Ex liquid temp sensor error Outdoor temp sensor error Suction gas temp sensor error Heat sink temp sensor error Sub cool Heat Ex gas inlet temp sensor error Sub cool Heat Ex gas outlet temp sensor error Liquid pipe temp sensor error Current sensor error Discharge pressure sensor error Suction pressure sensor error High pressure switch error Trip detection Compressor rotor position detection erro
17. in work in accordance with this Manual and ensure that the drain water is properly drained If the drain work is not carried out correctly water may drip down from the unit wetting the furniture When the outdoor temperature is 0 C or less do not use the accessory drain pipe and drain cap If the drain pipe and drain cap are used the drain water in the pipe may freeze in extremely cold weather Reverse cycle model only 3 3 As the drain water flows out of the outdoor unit during heating operation install the drain pipe and connect it to a commercial 16mm hose Reverse cycle model only When installing the drain pipe plug all the holes other than the drain pipe mounting hole in the bottom of the outdoor unit with putty so there is no water leakage Reverse cycle model only Unit mm Drain cap mounting hole x2 Drain pipe mounting hole x1 Drain pipe mounting hole 13 Base jean Drain pipe Installation dimensions The installation space shown in the following examples is based on an ambient temperature under cooling operation of 35 C DB at the air intake of the outdoor unit Provide more space around the air intake than shown in the examples if the ambient temperature exceeds 35 C DB or if the thermal load of all of the outdoor units exceeds the capacity Consider the transportation route installation space maintenance space and access and install the unit in a
18. ir access Install the outdoor unit in a location that would not inconvenience your neighbors as they could be affected by the airflow coming out from the outlet noise or vibration If it must be installed in proximity to your neighbors be sure to obtain their approval If the outdoor unit is installed in a cold region that is affected by snow accumulation snow fall or freezing take appropriate measures to protect it from those elements To ensure a stable operation install inlet and outlet ducts Install the outdoor unit in a location that is away from exhaust or the vent ports that discharge vapor soot dust or debris Install the indoor unit outdoor unit power supply cable connection cable and remote control cable at least 1 m away from a television or radio receivers The purpose of this is to prevent TV reception interference or radio noise Even if they are installed more than 1 m apart you could still receive noise under some signal conditions Branch switch and Gl circuit breaker 1m or more 1 m or more Branch switch and circuit breaker If children under 10 years old may approach the unit take preventive measures so that they cannot reach the unit Keep the length of the piping of the indoor and outdoor units within the allowable range For maintenance purposes do not bury the piping i 3 2 Drain installation Perform dra
19. ly cable of outdoor unit and every Branch boxes Y Are the wires connected to the terminals without looseness and in accordance with the specifications Is the 3 way valve of the outdoor unit open Gas pipe and liquid pipe Is power supplied to the crank case heater for Press and hold for more than 12 hours more than 3 seconds 9 Has the power supply of the all indoor units turned Y off Remote controller ua Example of 7 seg display HERE c3 9 1 2 Restrictions applicable when performing the Check run When the Check run starts all indoor units connected to the outdoor unit will start to run automatically During the Check run you cannot check the operation of the indoor units separately After the Check run check the operation of the indoor units separately in normal operation The operable temperature ranges for the Check run are external temperature 15 to 46 C room temperature for cooling 18 to 46 C room temperature for Number of heating 15 to 37 C indoor units Number of n the check run the conditioner will automatically switch between cooling and heating depending on the external temperature and internal temperature If the external temperature or internal temperature is outside the above operable temperature range wait until the temperature is within the operable range and 1 1 1 1 1 1 1 1 1 1 1 I 1 1 1 1 1
20. m 2 Obstacles at front only 1 Obstacles at rear only 1500 or more 1500 or more When an obstruction is present also in the upward area Unit mm Obstacles at rear and above only Max 300 En 5 3 3 3 Outdoor units installation in multi row Unit mm 1 Single parallel unit arrangement 500 3 4 Transportation of the unit Do not touch the fins Otherwise personal injury could result When carrying the unit hold the handles on the right and left sides and be careful If the outdoor unit is carried from the bottom hands or fingers may be pinched Besure to hold the handles on the sides of the unit Otherwise holding the suction grille on the sides of the unit may cause deformation Suction grille Handle Handle TRI 3 5 Installation of the unit Install 4 anchor bolts at the locations indicated with arrows in the figure To reduce vibration do not install the unit directly on the ground Install it on a Secure base such as concrete blocks The foundation shall support the legs of the unit and have a width of 50mm or more Depending on the installation conditions the outdoor unit may spread its vibration during operation which may cause noise and vibration Therefore attach damping materials such as damping pads to the outdoor unit during installation Install the foundation making sure that there is enough space for ins
21. n refer to the figure and check the following items D Is check run performed Test run doesn t operate if check run is not performed FAIL is displayed when operating the unit before the check run is done After checking that the above items are all in order refer to 9 2 2 Test run method to test run the unit If there are problems adjust immediately and recheck 9 2 2 Testrun method Be sure to configure test run settings only when the outdoor unit has stopped operating Pipe number error The number of wirings between indoor unit and branch box is not correct Turn off all the units and check number of connected pipes After correcting the error turn on the power and carry out the Check run again X If the number of pipes is correct the internal heat exchanger thermistor or branch box piping thermistor may have come out of its holder or a coil may have come out of an expansion valve In this case please contact Service personnel Depending on the communication status between the indoor and outdoor units it may take several minutes for the system to start operating after settings for the test run are complete After the test run settings are complete all the outdoor units and the connected indoor units will start operating Room temperature control will not activate during test run continuous operation Testrun set with the outdoor unit doesn t stop automatically Be s
22. n the table for flaring with R410A flare tools to achieve the specified flaring Use a thickness gauge to measure the dimension A Width across flats pu 7 N O 6 35 1 4 17 9 52 3 8 22 12 70 1 2 26 15 88 5 8 29 5 3 2 Bending pipes To prevent breaking of the pipe avoid sharp bends Bend the pipe with a radius of curvature of 100mm or more Ifthe pipe is bent repeatedly at the same place it will break f pipes are shaped by hand be careful not to collapse them Do not bend the pipes at an angle of more than 90 When pipes are repeatedly bent or stretched the material will harden making it difficult to bend or stretch them any more Do not bend or stretch the pipes more than 3 times 5 3 3 Pipe connection Besure to install the pipe against the port on the indoor unit and the outdoor unit correctly If the centering is improper the flare nut cannot be tightened smoothly If the flare nut is forced to turn the threads will be damaged Do not remove the flare nut from the outdoor unit pipe until immediately before connecting the connection pipe After installing the piping make sure that the connection pipes do not touch the compressor or outer panel If the pipes touch the compressor or outer panel they will vibrate and produce noise 1 Detach the caps and plugs from the pipes 2 Center the pipe against the port on the outdoor u
23. n the valve shaft can no longer be turned Open position Closing 1 Insert the hexagon wrench into the valve shaft and turn it clockwise 2 Stop turning when the valve shaft can no longer be turned Closed position Opening direction Opening 1 7 Hexagon wrench a Gas pipe 6 ELECTRICAL WIRING Seal blank cap installation portion Liquid pipe 6 1 The precautions of electrical wiring Wiring connections must be performed by a qualified person in accordance with specifications The rated supply of this product is 50Hz 230V Use a voltage within the range of 198 264V Before connecting the wires make sure the power supply is OFF Besure to install a breaker of the specified capacity When selecting breaker please comply with the laws and the regulations of each country One breaker must be installed on the power supply of the outdoor unit Wrong selection and setup of the breaker will cause electric shock or fire Be sure to install an earth leakage breaker Otherwise it will cause electric shock or fire Donot connect AC power supply to the transmission line terminal board Improper wiring can damage the entire system Connect the connector cord securely to the terminal Faulty installation can cause a fire Make sure to secure the insulation portion of the connector cable with the cord clamp A damaged insulation can cause a short circuit Nev
24. ndling the control PC Board for address setting etc Please keep caution to the following points Provide the grounding of Indoor unit Outdoor unit and Option equipment Cut off the power supply breaker Touch the metal section such as the unpainted control box section of the indoor or outdoor unit for more than 10 seconds Discharge the static electricity in your body Never touch the component terminal or pattern on the PC Board 6 2 Knockout hole Be careful not to deform or scratch the panel while opening the knockout holes When cables are routed from the unit a protection sleeve for the conduits can be inserted at the knockout hole When cables through the opened knockout hole install the one touch bush For the installation method of the one touch bush refer to 6 6 Connecting of wiring It is recommended to apply anti rust paint to the edge of the knockout hole Knockout holes are provided for wiring Fig A Knockout holes are provided 2 each in the same size in front lateral and rear sides Fig B Fig A Fig B Lateral connection Rear connection Front connection En 9 6 3 Electrical reguirement Be sure to install a breaker of the specified capacity Regulation of cables and breaker differs from each locality refer in accordance with local rules 19 230V 50Hz 198 264V 6 0 2 cable Ground 1 230V Power
25. ng the parts to fail or the unit to leak water Area filled with mineral oil or containing a large amount of splashed oil or steam such as a kitchen It will deteriorate plastic parts causing the parts to fail or the unit to leak water Area that generates substances that adversely affect the equipment such as sulfuric gas chlorine gas acid or alkali It will cause the copper pipes and brazed joints to corrode which can cause refrigerant leakage Area containing equipment that generates electromagnetic interference It will cause the control system to malfunction preventing the unit from operating normally Area that can cause combustible gas to leak contains suspended carbon fibers or flammable dust or volatile inflammables such as paint thinner or gasoline If gas leaks and settles around the unit it can cause a fire Area that has heat sources vapors or the risk of the leakage of flammable gas in the vicinity Area where small animals may live It may cause failure smoke or fire if small animals enter and touch internal electrical parts Area where animals may urinate on the unit or ammonia may be generated Please install the outdoor unit without slant Install the outdoor unit in a well ventilated location away from rain or direct sunlight If the outdoor unit must be installed in an area within easy reach of the general public install as necessary a protective fence or the like to prevent the
26. nit and then turn the flare nut by hand 3 Tighten the flare nut of the connection pipe at the outdoor unit valve connector 4 After tightening the flare nut by hand use a torque wrench to fully tighten it 3 way valve Liquid 3 way valve Gas Flare ia Flare nut Connection pipe Liquid Connection pipe Gas Hold the torque wrench at its grip keeping it in a right angle with the pipe in order to tighten the flare nut correctly Outer panel may be distorted if fastened only with a wrench Be sure to fix the elementary part with a holding wrench spanner and fasten with a torque wrench refer to below diagram Do not apply force to the blank cap of the valve or hang a wrench etc on the cap If blank cap is broken it may cause leakage of refrigerant Blank cap Flare nut Torque wrench 90 V L Torque wrench 6 35 1 4 dia 16 to 18 160 to 180 9 52 3 8 dia 32 to 42 320 to 420 12 70 1 2 dia 49 to 61 490 to 610 15 88 5 8 dia 63 to 75 630 to 750 19 05 3 4 dia 90 to 110 900 to 1100 Holding wrench 5 3 4 Handling precautions for the valves Mounted part of Blank cap is sealed for protection Fasten blank cap tightly after opening valves Operating the valves Use a hexagon wrench size 4mm Opening 1 Insert the hexagon wrench into the valve shaft and turn it counterclockwise 2 Stop turning whe
27. ondary 2 A Branch box Terminal A b Branch box Terminal B C Branch box Terminal C unit error e o This is a unit error E rir For error content please refer to 11 2 Error display mode En 16 Perform test run for refrigerant system You can set cooling test run or hea Test run setting method Function settings First 2 digits Last 2 digi 7 MODE EXIT 3 mm mamme uud MODE EXIT SELECT ENTER Blinking Y SELECT For cooling operation press the SELECT button until 00 is displayed ri uu Blinking ENTER Press the ENTER button for more than 3 seconds This will be displayed when the E cooling test run starts It takes approximately 30 seconds for the outdoor unit to start its operation pi LI This will be displayed after 5 seconds Blinking Blinking ENTER Press the ENTER button for more than 3 seconds This will be displayed when the cooling operation mode is canceled E It takes approximately 30 seconds for the outdoor unit to stop its operation ije This will be displayed after 5 seconds Blinking d Y ing test run with the push button switch on the outdoor unit print circ
28. oor unit L Secondary unit Branch box that is connected to the Branch box Primary Power supply LI Indoor unit Branch box Secondary1 Separation tube Indoor unit Power Indoor unit supply ee Mm ee ee Indoor unit TI Branch box Separation tube P Primary Indoor unit Breakert T Outdoor unit Power supply Indoor unit s mm Piping Power supply m Transmission line va Power supply and Transmisson line Power supply Breaker2 Circuit breaker over current Breaker1 Earth leakage breaker En 3 3 INSTALLATION WORK Please obtain the approval of the customer when selecting the location of installation and installing the unit 3 1 Selecting an installation location Securely install the outdoor unit at a location that can withstand the weight of the unit Otherwise the outdoor unit may fall and cause injury Besure to install the outdoor unit as prescribed so that it can withstand earthquakes and typhoons or other strong winds Improper installation can cause the unit to topple or fall or other accidents Donotinstall the outdoor unit near the edge of a balcony Otherwise children may climb onto the outdoor unit and fall off of the balcony Donotinstall the outdoor unit in the following areas Area with high salt content such as at the seaside It will deteriorate metal parts causi
29. or Low noise mode CN931 External input priority mode CN932 Peak cut mode CN933 Stop operation mode CN934 Circuit diagram example Connected unit Field supply Outdoor unit control PC board Connection cable option I i 10m Connector Make the distance from the PC board to the connected unit within 10m Contact capacity 24VDC or more 10mA or more 10 2 2 Low noise mode CN931 This features reduces the operating sound of the outdoor unit from the normal sound The air conditioner is set to the Low noise mode when closing the contact input of a commercial timer or ON OFF switch to a connector on the outdoor control PC board Performance may drop depending on the outside air temperature condition etc Set the Low noise mode level refer to 8 2 Function settings Input Signal ON Low noise mode OFF Normal operation Input Signal ON OFF Low noise mode ON OFF 10 2 3 External input priority mode CN932 lt is possible to switch to cooling operation and heating operation by using external input Set the External input priority mode refer to 8 2 Function settings Input Signal ON Heating operation OFF Cooling operation Input Signal ON OFF Priority mode Heating Cooling 10 2 4 Peak cut mode CN933 Operation that suppressed the current value can be performed by means of the connected unit The air conditioner is
30. pen This may cause abnormal pressure in the refrigeration cycle that leads to breakage and even injury En 1 When installing and relocating the air conditioner do not mix gases other than the specified refrigerant R410A to enter the refrigerant cycle If air or other gas enters the refrigerant cycle the pressure inside the cycle will rise to an abnormally high value and cause breakage injury etc Do not remove the connection pipe while the compressor is in operation with 2 way or 3 way valve open This may cause abnormal pressure in the refrigeration cycle that leads to breakage and even injury For the air conditioner to operate satisfactorily install it as outlined in this installation manual Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts This installation manual describes the correct connections using the installation set available from our standard parts Also do not use an extension cord Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation There is not extra refrigerant in the outdoor unit for air purging Use a vacuum pump for R410A exclusively Using the same vacuum pump for different refrigerants may damage the vacuum pump or the unit Use a clean gauge manifold and charging hose for R410A exclusively This mark indicates procedures which if improperly perform
31. perform the Check run again H Heat C Cool E H 4 Eala ofe operation has finished normally without error D Ifthe displayed number of units matches the installed number go to 4 If the displayed number does not match the installed number check the following Are all the Branch boxes turned on Check that the Branch boxes are turned on and go to 4 Are connection cables connected to all of the indoor units Turn of the power connect the Connection cable and go to 1 Press the MODE EXIT button MODE EXIT END has been turned off En 15 9 1 4 Error display On Blinking O Off Error display Contents 7 seg display LED lamp Indeterminable The external or room temperature is outside b eg a O he operable range The air conditioner will g blinking emporarily permit normal operation but the Check run should be carried out again at a later date when the temperatures are within he operable ranges Wiring number error The number of wirings between indoor unit and branch box is not correct Turn off all he units and check number of connected wires After correcting the error turn on the power and carry out the Check run again 9 2 TEST RUN 9 2 1 Pre test run check items Before the test ru
32. power supply cable and connection cable 3 One touch bush For power supply cable and connection cable installation 2 2 4 Optional parts The following parts are optional parts specific to R410A refrigerant Do not use parts other than those listed below Refer to the installation manual for the Branch box and the Separation tubes Separation tube UTP SX248A 3 Branches UTP PY03A Branch box 2 Branches UTP PY02A External connect kit for External input output VTERWZXZS External connect kit for Base heater Bri 2 5 Operating range Operating range Maximum 32 C DB 46 C DB Cooling Minimum 18 C DB 5 C DB Maximum 30 C DB 24 C DB Heating Minimum 16 C DB 15 C DB Indoor humidity about 80 or less En 2 2 6 System configuration 2108 indoor units can be connected The total capacity of the indoor units connected must be between 11 2 kw and 18 2 kw For details refer to the DESIGN amp TECHNICAL MANUAL If the total capacity of the connected indoor units exceeds 18 2 kw or less than 11 2 kw an error will be displayed and the units will be not operate For the installation method of Branch box and indoor units refer to the installation manuals that come with them Indoor unit Branch box Secondary2 l Indoor unit Breaker2 Primary unit Branch box that is connected to the Outd
33. r Outdoor unit fan motor error 4 way valve error Discharge temperature error Compressor temperature error Low pressure error Branch boxes error NENEN gt o gt gt a a aa a o a N E T w o 5l 00 co oix aA aSa o ASV N ININ a 2 Oo N 2 5 o o N C F F N O gt m ITI ITI ITI ITI ITI ITI ITI ITI ITI FTI ITI ITI ITI ITI FTI ITI m ITI m FT ITI ITI M m TI mimmi MI m IMI m m N es Note Even if error is solved while displaying error codes the 7 seg display continues to display the error codes Please confirm the error has been recovered by checking normal display kiro 2 7 4 8 H 9 d rj E E E nr o r Uii A445 5665 OO Abo e F uH J d LL ps E s 5 p H En 20
34. r unit ERS H 4 Da Pressure gauge Nitrogen Branch box Indoor unit Vacuum pump 7 3 Additional charging Do not turn on the power unless all operations are complete Do not charge the system with a refrigerant other than R410A Do notreuse recovered refrigerant Usean electronic scale to measure the charging amount of refrigerant Adding more refrigerant than the specified amount will cause a malfunction Charge refrigerant using the liquid pipe Adding refrigerant through the gas pipe will cause a malfunction Add refrigerant by charging the system with the refrigerant in the liquid state If the refrigerant cylinder is equipped with a siphon it is not necessary to place the cylinder upright 7 3 1 1 Remove the charging cap from the liquid pipe Procedure for charging the system with refrigerant 2 Attach a charging hose to the refrigerant cylinder and connect it to the charging port 3 Add refrigerant by calculating the additional refrigerant volume in accordance with the calculation formula indicated below 4 Remove the charging hose and install the charging cap 5 Remove the blank caps gas pipe liquid pipe and open the valves 6 Close the blank caps 7 After adding refrigerant indicate the added charging volume on the unit Tighten the blank caps and cha
35. rating in the low noise mode can be set 42 Low noise mode operation gt 6dB 0 1 Cooling heating performance decreases by lowering operation noise level setting level Level 3 9dB 2 En 13 1 Setting method Use the MODE EXIT SELECT and ENTER buttons to configure settings according to the procedures below 1 Function Setting First 2 digits Last 2 digi poem 7 seg display i MODE EXIT Press the MODE EXIT button i SELECT Press the SELECT button F c Blinki i ENTER Press the ENTER button Blinking i l I MODEJEXIT SEJ Fle Blinking When F3 to F9 are displayed continue to press the SELECT button until F2 is displayed z 3 Setting the aka ee ee 2 Setting the fee SE RS Ne S a eee last 2 digits a first 2 digits i SELECT 1 i Continue to press the SELECT button until the 1 1 desired number appears at the last 2 digits 1 SELECT SELECT gij Ta NE 4 gi Ta 4 r 4 4 Ta Tawa i i L Lu i os os Lj EI 1 LJ LI e Blinking Blinking Blinking Blinking ENTER Press the ENTER button for more than 3 seconds SELECT Every press of the SELECT button will change the setting number for the first
36. rged from the indoor unit 2 The indoor unit operates normally when air direction or air volume adjustment button is pressed Error code is displayed when operating the indoor unit with the remote controller before check run 10 EXTERNAL INPUT amp OUTPUT 10 1 Fitting cable optional parts The cable including connector that connects to the external input amp output terminal is an optional part This cable should not be laid parallel to the connection cable or power supply cable Doing so could result in erroneous operation D When fitting the service cover pull the cable as shown in the diagram to prevent it from being trapped And fix the 2 binders accessory optional parts Q Fixthe Binder accessory outdoor unit 3 Pass the cable through the as yet unused knockout hole Please protect the cable with the edge of knockout hole to avoid damage Seal the knockout hole that passes the cable with putty so that there is no gap 10 2 External input 10 2 1 Wiring of connector ON OFF of the Low noise mode External input priority mode Peak cut mode and Stop operation mode functions can be enabled with an external field device When installing connection cable specified part optional parts must be used Refer to section 8 2 Table A List of setting for the required function The unction must be set for the external input to work Input Connect
37. rging caps to the torque values specified To open and close the valves use an M4 hexagon wrench for liquid and gas pipes 7 3 2 Calculating the amount of refrigerant charge to be added Round up the value to 2 decimal places 6 35 1 4 09 52 3 8 0 021 0 058 Calculation of additional amount for pipe length Total length Total length of 66 35mm of b9 52mm Total L iin x 0 021 osisin 0 088 liquid pipe kg m liguid pipe kg m m m kg kg kg lt Example gt If liguid pipe piping length is the following 9 52 3 8 20m 66 35 1 4 15m Additional charge volume L 20 m x0 058 kg m 15 m x0 021 kg m 1 475kg 1 48kg 7 4 Refrigerant recovery method X Please perform the refrigerant recovery according to the local law and rules The refrigerant recovery of this type of equipment must be performed by a refrigerant recovery machine Turn on both the power supplies of the outdoor unit and the branch boxes Press the MODE EXIT button of the outdoor unit when all units are in stop operation state Match the 7 seg display to F3 by pushing the SELECT button Press the ENTER button Match the 7 seg display to 21 by pushing the SELECT button Press the ENTER button for about 5 seconds Turn off the power supplies of all units when P oFF is displayed Perform the refrigerant recovery with the refrigerant recovery machine eooo095c OO It cannot be
38. s consult authorized service personnel to repairs When moving consult authorized service personnel for disconnection and installation of the unit Children should be monitored to ensure they do not play with the device This product is not intended to be used by people including children with physical sensory or mental disability or persons lacking experience or knowledge unless they have been given by the through a person responsible for their safety supervision or instruction concerning the use of the device 2 ABOUT THE PRODUCT Precautions for using R410A refrigerant The basic installation work procedures are the same as conventional refrigerant models However pay careful attention to the following points Since the working pressure is 1 6 times higher than that of conventional refrigerant R22 models some of the piping and installation and service tools are special See the table below Especially when replacing a conventional refrigerant R22 model with a new refrigerant R410A model always replace the conventional piping and flare nuts with the R410A piping and flare nuts 2 Models that use refrigerant R410A have a different charging port thread diameter to prevent erroneous charging with conventional refrigerant R22 and for safety Therefore check beforehand The charging port thread diameter for R410A is 1 2 UNF 20 threads per inch Be careful that foreign matter oil
39. s the MODE EXIT button You cannot operation will not be possible without performing the Check run execute the stop operation using the remote control To prevent electric shock close the service panel during the Check run 5 The Check run will stop automatically after all items are completed 9 1 1 Things to confirm before starting the Check run To ensure safety check that the following work inspections and operations have been completed When an error occurs consult the following error display items Correct the error and carry out the Check run again When the error display appears even though the measures for error are D Check that all work on the piping connecting the taken switch on the power again after turning off the power When the outdoor unit indoor units and branch box has been power is turned on again after turned off wait approx 10 minutes and completed turn on the power again 9 Check that all work on the wiring connecting the outdoor unit indoor units and branch box has been completed poor cee ee ee eee ee ee i e On Blinking O Off Is there a gas leakage At pipe connections flange POWER connections and brazed areas MODE ERROR 7 seg display LED981 LED982 Is the system charged with the specified volume of e 60 S refrigerant H H H H Is a breaker installed at the power supp
40. talling the connection pipes Secure the unit to a solid block using foundation bolts Use 4 sets of commercially available M10 bolts nuts and washers The bolts should protrude 20mm Refer to the figure If overturning prevention is required purchase the necessary commercially available items Unit mm 166 650 154 16 L 4 SYSTEM CONFIGURATION 4 1 Piping limitation and Pipe size Outdoor Unit Separation Tube H2 Secondary2 H1 Pipe limitation Maximum total equivalent pipe length 115orless Total Between outdoor unit and the farthest indoor unit 70 orless atbtctm Between outdoor unit and branch boxes 55 or less a btctdte Total 60 or less f gth i j k l m Between branch box and indoor unit Each unit Between 3 15 f g R i j k I m Allowable pipe length actual pipe length Between outdoor unit and the first separation tube 5 or more a Between outdoor unit and branch box when there is no separation tube 5 or more atd Between outdoor unit and indoor unit 30 or less H1 Between outdoor unit and branch box 30 or less H2 Between branch box and branch box 15 or less H3 Allowable difference Between indoor unit and indoor unit 15 or less H4 Pipe size selection Between outdoor unit and first separation tube a 15 88 5 8 09 52 3 8 Between first separation tu
41. tatus signal is produced when a malfunction occurs Error status Error Normal Output signal ON OFF 10 3 3 Compressor status output CN952 Compressor operation status signal is produced when the compressor is running Compressor status Operation Stop Output signal ON OFF 10 3 4 Base heater When installing connection cable specified part optional parts must be used This output signal is produced when the outdoor temperature drop down to 2 C and releases at 4 C Circuit diagram example PCB connected unit Base heater 22 Connector 4 PCB connected unit Base heater 3 Connector 1 1 Connect to pin 1 and pin 3 No connection pin2 and pin4 2 The allowable power consumption is 25W or less 8 If a load greater than 25W is applied a contactor or relay should be used to operate and control the base heater En 19 11 1 Normal operation mode 11 LED Display You can determine the operating status by the lighting up and blinking of the LED lamp Check the status using the table below Oo Cooling Heating a c n r u ojo 11 2 Error display mode When error occurs Err and Number of errors occurred are alternately displayed on the 7 seg display The latest error code can be confirmed by pressing the ENTER button When error codes are displayed all the error codes can be confirmed by pr
42. th R410A Using the same vacuum equipment for different refrigerants may damage the vacuum pump or the unit Do not purge the air with refrigerants but use a vacuum pump to evacuate the system Check that the valves are closed by removing the blank caps from the gas and liquid pipes Remove the charging port cap and connect the gauge manifold and the vacuum pump to the charging valve with the service hoses Vacuum the indoor unit and the connecting pipes until the pressure gauge indicates 0 1 MPa 1bar When 0 1 MPa 1bar is reached make sure it hold vacuum for 60 minutes Disconnect the service hoses and fit the charging port cap to the charging valve to the specified torque Refer to below table Remove the blank caps and fully open the 3 way valves with a hexagon wrench Torque 6 to 7 N m 60 to 70 kgf cm Tighten the blank caps of the 3 way valve to the specified torque 10 to 12 100 to 120 6 to 7 60 to 70 6 35 1 4 20 to 25 200 to 250 9 52 3 8 20 to 25 200 to 250 12 70 1 2 25 to 30 250 to 300 15 88 5 8 30 to 35 300 to 350 19 05 3 4 35 to 40 350 to 400 Service hose with valve core Charging port Charging port cap Blank cap 3 way valve Connecting pipe Gauge manifold Hexagon wrench Use a 4 mm 5 32 hexagon wrench Vacuum pump eI Service hose ULO Pressure regulating valve Outdoo
43. than the indoor unit the water that has condensed in the 3 way valve of the outdoor unit could travel to the indoor unit Therefore use putty in the space between the pipe and the insulation to prevent the entry of water to the indoor units Fig A Insulation 8 FIELD SETTING Discharge the static electricity from your body before setting up the DIP switches Never touch the terminals or the patterns on the parts that are mounted on the board 8 1 Field setting switches Set the functions of an outdoor unit with the push buttons SW931 SW932 and SW933 while observing the 7 seg display LED961 and LED962 on the printed circuit board M LEDlamp Z N Jf N 7 seg display ele mm POMER ERROR 2 sa LED961 LED962 j 899898 MODE EXIT SELECT ENTER CHECK i M Z na lee ie N swssi sw swasa sw Ni 1 V Sa Push button fd Outdoor unit printed circuit board PREPARATION D Be sure to check that the operation of the outdoor unit has stopped be sure to stop the operation if it is still running and turn off the power Remove the front panel of the outdoor unit and remove the lid of the electrical component box in order to expose the printed circuit board 3 Turn on the power of the outdoor unit As shown in the above figure make sure that the POWER MODE indic
44. the CN934 is stopped Furthermore the air conditioner does not accept the operation of the indoor unit when emergency stop is actuated Priority given to the frst 0 0 Select the priority setting of the operation mode command Priority given to the first command Priority is given to the operation mE mode which is set first 21 Operation mode selecting Priority given to external 0 1 Priority given to external input of outdoor unit Priority is given to the method input of outdoor unit operation mode which is set by the external input terminal CN932 h 4 0 0 Setting forbidden 28 Forbidden Forbidden m 1 r 0 0 Setting forbidden 29 Forbidden Forbidden 5 1 Level 1 stop 0 0 The capacity limit can be selected when operating with the Energy Level 2 Limited at 50 0 1 Saving Peak Cut function 30 xA saving level Level 3 Limited at 75 0 2 The operation selection can be done by external input terminal CN933 9 g The lower the level the more the effect of energy saving but the cooling Level 4 Limited at 100 0 3 heating performance decreases Off Normal 0 0 When Low noise mode ON is selected the operating noise will be suppressed 41 Low noise mode setting Without external input terminal It operates by selecting Low noise mode On Low noise mode 0 1 ON With external input terminal The operation selection can be done by external input terminal CN931 by selecting Low noise mode OFF Level 1 3dB 0 0 The noise level when ope
45. tion 5 83 Flare connection pipe connection 6 ELECTRICAL WIRING 6 1 The precautions of electrical wiring 6 2 Knockout hole 6 3 Electrical requirement 6 4 Unit wiring 6 5 Wiring method 10 6 6 Connecting of wiring 10 7 PIPE INSTALLATION II 7 1 Sealing test sarioa Ee EMPIO AIO is a a 41 7 2 Vaccum process 11 7 3 Additional charging 11 7 4 Refrigerant recovery method 12 7 5 Installing insulation 12 7 6 Filling with putty 12 8 FIELD SETTING 8 1 Fiad sang SWORO aki nike seni akne pti pilo a soo i le nore petrae ces 12 8 2 F nction selttings 2 oro sk e SE K ae qe dt 13 9 TEST OPERATION 9 1 Check run 9 2 TEST RUN 9 3 Confirming the operation of indoor unit 10 EXTERNAL INPUT amp OUTPUT 10 1 Fitting cable optional parts 10 2 External input 10 3 External OUL DUE a i eri ront TAT ord tte SPI san as Di pt au hsc asa EAS 19 11 LED Display 11 1 Normal operation mode 11 2 Error display mode 1 SAFETY PRECAUTIONS Be sure to read this Manual thoroughly before installation The warnings and precautions indicated in this Manual contain important information pertaining to your safety Be sure to observe them Hand this Manual together with the Operating Manual to the customer Request the customer to keep them on hand for future use such as for relocating or repairing the unit After installa
46. tion explain correct operation to the customer using the operating manual This mark indicates procedures which if improperly performed might lead to the death or serious injury of the user Never touch electrical components immediately after the power supply has been turned off Electrical shock may occur After turning off the power always wait 10 minutes or more before touching electrical components Request your dealer or a professional installer to install the indoor unit in accordance with this Installation Manual An improperly installed unit can cause serious accidents such as water leakage electric shock or fire If the indoor unit is installed in disregard of the instructions in the Installation Manual it will void the manufacturer s warranty Do not turn ON the power until all work has been completed Turning ON the power before the work is completed can cause serious accidents such as electric shock or fire If refrigerant leaks while work is being carried out ventilate the area If the refrigerant comes in contact with a flame it produces a toxic gas Installation work must be performed in accordance with national wiring standards by authorized personnel only During installation make sure that the refrigerant pipe is attached firmly before you run the compressor Do not operate the compressor under the condition of refrigerant piping not attached properly with 2 way or 3 way valve o
47. to the terminal block Securely clamp the crimp type terminals to the wires using an appropriate tool so that the wires do not come loose Use the specified wires connect them securely and fasten them so that there is no stress placed on the terminals Use an appropriate screwdriver to tighten the terminal screws Do not use a screwdriver that is too small otherwise the screw heads may be damaged and prevent the screws from being properly tightened 5 Do not tighten the terminal screws too much otherwise the screws may break 6 See the table below for the terminal screw tightening torques Crimp type terminal Strip 10mm Screw with Screw with special washer V special washer g Crimp type terminal Wire i Crimp type terminal Ga Terminal blocks m E Wire M4 screw 1 2 to 1 8 12 to 18 M5 screw 2 0 to 3 0 20 to 30 6 5 Wiring method The wiring example for Outdoor unit indoor units and Branch box is shown in figure For other connections refer to Design amp Technical Manual Example Single phase 230V 50Hz FII Power supply cable Max 26 5A Mone Breaker1 Earth leakage breaker Breaker2 Circuit breaker over current Outdoor unit BRANCH BOX Connection cable ec Optional Optional Optional terminal Branch terminal terminal Branch box Secondary1 Branch box Secondary2 CEE CEE CENTRAL BRANCH BOX2 BRANCH BOX OUTDOOR UNIT CENTRA
48. uit board Press the MODE EXIT button Press the SELECT button Press the ENTER button When F4 to F9 are displayed continue to press the SELECT button until F3 is displayed Settings for starting test run operation SELECT For heating operation press the SELECT button until 01 is displayed 4 0 Blinking ENTER Press the ENTER button for more than 3 seconds d E li Blinking E ujc Blinking Y MODE EXIT EXIT This will be displayed when the heating test run starts It takes approximately 30 seconds for the outdoor unit to start its operation This will be displayed after 5 seconds Settings for stopping test run operation ENTER Press the ENTER button for more than 3 seconds This will be displayed when the heating operation mode is canceled It takes approximately 30 seconds for the outdoor unit to stop its operation This will be displayed after 5 seconds After the test run is complete turn off the power Attach the cover of the electrical component box and the front panel of the outdoor unit En 17 9 3 Confirming the operation of indoor unit Run the unit in a normal way and confirm its operation Please end the check run first before confirmation D Cold air or warm air must be discha
49. ure to stop the operation according to the operation method All indoor units will operate when test run is performed from the outdoor unit At this time the remote controller of the indoor unit is unavailable Operation mode cannot be changed during the test run To change the operation mode please stop the test run first and then perform the test run again At this time the compressor cannot be restarted for 3 minutes after it stops in order to protect the indoor unit Please restart it after 3 minutes example Wiring error aa A wiring error has occurred A 3 h The location at which the wiring error has been determined will be displayed on the 7 seg display If there are multiple wiring error locations the display will cycle through the locations switching every 2 seconds After performing the following operation turn off the power and correct the wiring Note down the content of the wiring error Note down the number of blinks of the green LED on the PCB of the branch box The number of blinks indicates the device number of the Branch box After correcting the wiring turn on the power and carry out the Check run again In the case of the diagram Connect the Connection cable which is connected to the terminal A on Branch box Primary to the terminal B on Branch box Secondary2 4 t H 3 b 1 Branch box Primary 2 Branch box Secondary 1 3 Branch box Sec
50. usijBug yos neq sreduel4 Joueds3 ouelje DYIAUYYJ sen6nyog uunuookd 95y1N1 nd operates tains ai andlor service of this product INSTALLATION MANUAL For authorized personnel only R410A REFRIGERANT with refrigerant R410A This Air Conditioner con regulations codes installation amp operation manuals before the installation maintenance Refer to Commonwealth State Territory and local legislation a ui 9 gt amp ui a x o a ui 4 amp D z w m gt z o d 6 2 E o gt a o z s 2 I BY QUALIFIED PERSONNEL min PP p III IIA ITT VIII LRT gt s AIR CONDITIONER OUTDOOR UNIT PART NO 9379069106 02 Contents SAFETY PRECAUTIONS ie ata sai ERR e ia a K eS 2 ABOUT THE PRODUCT 2 1 Precautions for using R410A refrigerant 2 2 Special tools for RA10A 2 3 Accessories 2 4 Optional parts 2 5 Operating range 2 6 System configuration 3 INSTALLATION WORK 3 1 Selecting an installation location 3 2 Drain installation 3 3 Installation dimensions 3 4 Transportation of the unit 3 5 Installationof the unit 3 rr eee eter Pr sei ru ioni 4 SYSTEM CONFIGURATION 4 1 Piping limitation and Pipe size 5 PIPE INSTALLATION 5 1 Opening a knockout hole 5 2 Separation tube connec
51. water etc does not enter the piping than with refrigerant models Also when storing the piping securely seal the openings by pinching taping etc When charging the refrigerant take into account the slight change in the composition of the gas and liquid phases And always charge from the liquid phase where refrigerant composition is stable Special tools for R410A Pressure is high and cannot be measured with a conventional gauge To prevent erroneous mixing of other refrigerants the diameter of each port has been changed It is recommended the gauge with seals 0 1 to 5 3 MPa 1 to 53 bar for high pressure 0 1 to 3 8 MPa 1 to 38 bar for low pressure To increase pressure resistance the hose material and base size were changed A conventional vacuum pump can be used by installing a vacuum pump adapter Special gas leakage detector for HFC refrigerant RA10A 2 3 Accessories For installation purposes be sure to use the parts supplied by the manufacturer or other prescribed parts The use of non prescribed parts can cause serious accidents such as the unit falling water leakage electric shock or fire Do not throw away the connecting parts until the installation has been complete Installation This book manual 1 Drain cap For outdoor unit drain piping work E S Drain pipe For outdoor unit drain piping work J O 7 1 Binder For binding
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