INSTALLATION MANUAL
Contents
1. B Indoor unit remote controller setting room tempera ture sensor selection The temperature sensor of the indoor unit or the remote con troller can be used to detect the room temperature 1 Enable the room temperature sensor selection in FUNC TION SETTING which will be described later 2 Press the THERMO SENSOR button for 5 seconds or more to select the temperature sensor of the indoor unit or the remote controller NOTE If the function to change the temperature sensor is used as shown in example A other than example B be sure to lock the detection location If the function is locked the lock display will flash when the THERMO SENSOR button is pressed 9 5 Special installation methods N CAUTION e When setting DIP switches do not touch any other parts on the circuit board directly with your bare hands e Be sure to turn off the main power 9 5 1 Simultaneous multi system operation e By combining with an outdoor unit 2 units for twin and 3 units for triple indoor units can be switched ON OFF simul tanneously e When different indoor unit models are connected some functions may no longer be available 1 Wiring method e Refer to 7 ELECTRICAL WIRING for wiring procedure and wiring method e The indoor unit is connected the outdoor unit using a trans mission cable is master e Connect the remote controller wire to the master unit Outdoor2. Operation method e For the operation method refer to the Operating Manual 1 If the operation lamp is on press the Start Stop button to turn it off 2 Press the Master Control Button and Fan Control Button at the same time for more than two seconds to start the test operation The operation lamp will light up and the set temperature display will be displayed on Perform the test operation for 60 minutes 3KOD Ca Ce o Test run display 3 Press the start stop button to stop the test running If CO appears in the unit number display there is a remote controller error Unit number Error code Content co Incompatible indoor unit is connected Indoor unit lt remote controller CO 1c aa communication error Using the wireless remote control Option e For the operation method refer to the operating manual e The outdoor unit may not operate depending on the room temperature In this case press the test run button on the remote control unit while the air conditioner is running Point the transmit ter section of the remote control unit toward the air condi tioner and press the test run button with the tip of a ball point pen etc Transmitter section Test run button e To end test operation press the remote control unit START STOP button When the air conditioner is run by pressing the test run but ton the OPERATION Lamp and TIMER Lamp will simulta neousl
3. e If pipes are shaped by hand be careful not to collapse them e Do not bend the pipes at an angle more than 90 e When pipes are repeatedly bend or stretched the material will harden making it difficult to bend or stretch them any more e Do not bend or stretch the pipes more than three times Z CAUTION e To prevent breaking of the pipe avoid sharp bends e If the pipe is bent repeatedly at the same place it will break 5 3 3 Pipe connection N CAUTION e Be sure to apply the pipe against the port on the indoor 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 e Do not remove the flare nut from the indoor unit pipe until immediately before connecting the connection pipe e Do not use mineral oil on flared part Prevent mineral oil from getting into the system as this would reduce the lifetime of the units e Be sure to connect the gas pipe after connecting the liquid pipe completely 1 Detach the caps and plugs from the pipes 2 Center the pipe against the port on the indoor unit and then turn the flare nut by hand 3 When the flare nut is tightened properly by your hand hold the body side coupling with a separate spanner then tighten with a torque wrench See the table below for the flare nut tightening torques N CAUTION e Hold the torque wrench at its grip keeping it in the right angle
4. OFF ON ON ON NOTE Be sure to set the unit numbers sequentially 3 Remote controller setting 1 Turn on all of the indoor units 1 Turn on the indoor unit with the unit number 00 last Within 1 minute 2 When the indoor units are turned on error codes 01 and 31 will be displayed however these error codes will be deleted by setting the remote controller Therefore continue with the setting procedure 2 Set the refrigerant circuit address Assign the same number to all of the indoor units con nected to an outdoor unit The setting value is factory set to 00 Function s 3 After completing the function settings turn off all of the indoor units and then turn them back on If error code 01 1F 30 31 or 32 is displayed there may be an incorrect setting Perform the remote controller setting again Remote controller DIP switch setting Indoor unit Unit number Remote controller setting Unit number Setting value Refrigerant circut address Transmission cable Power supply cable s Power supply cable Remote controller cable Bus wire NOTE e When different indoor unit models are connected using the group control system some functions may no longer be available e If the group control system contains multiple units that are operated simultaneously connect and set the units as shown below Standard Simultaneous Simultaneous
5. e After turning off the power wait 30 seconds or more before turning on it again The FUNCTION SETTING doesn t become effective if it doesn t do so En 14 9 3 Function setting In case of a simultaneous multi system or Group control system make sure to set 9 5 1 and 9 5 2 at first X In case of a simultaneous multi system or Group control system select the Unit number of the indoor unit that re quires setting In case of standard pair select 00 about the unit number of the indoor unit Setting the Static Pressure Function Settin SS ee 0 01 Determine the wind volume in each mode i e applicable range of static pressure refering to 9 STATIC PRESSURE CHARACTERISTICS The setting value is factory set to 00 Setting the Cooler Room Temperature Correction e Depending on the installed environment the room tempera ture sensor may require a correction The settings may be selected as shown in the table below The setting value is factory set to 00 Function Setting Description petnar Ramer iana Value Standard Lower control control a Setting the Heater Room Temperature Correction e Depending on the installed environment the room tempera ture sensor may require a correction The settings may be changed as shown in the table below The setting value is factory set to 00 Function Setting Standard Standard _ control Slightly warmer control Warmer con
6. kgf cm 1 2 to 1 8 12 to 18 2 0 to 3 0 20 to 30 Screw with Ss special washer Wie 56 Crimp type terminal Wire z Terminal blocks Screw with special washer Crimp type terminal 7 2 3 Wiring procedure N CAUTION e Use care not to mistake the power supply cable and con nection cables when installing 1 Remove the control box cover and install each connection cable Screw Control box cover 2 After wiring is complete secure the remote controller ca ble transmission cable with the binder and the clamper Detail a G 7 Binder Accessory Remote XRemove excess controller cable after installing Wire clamper Transmission Accessory cable Binder Accessory X Remove excess after installing 3 Install control box cover Adjust the position of the screws for control box cover accord ing to the installation CAUTION e Do not bundle the remote controller cable or wire the remote controller cable in parallel with the indoor unit connection wire to the outdoor unit and the power sup ply cable It may cause erroneous operation En 11 8 REMOTE CONTROLLER SETTING Refer to the installation manual enclosed with the remote control unit when the wireless remote control unit option is used N CAUTION e In order to detect the room temperature correctly when using the temperature sensor of the remote controller do not install the remote
7. pair twin triple Remote controller DIP switch setting Indoor unit Unit number Remote controller setting Refrigerant circuit address setting Function number 02 Unit number Setting value Master Slave setting Function number 51 Unit number Setting value Transmission cable Power supply cable s Power supply cable Remote controller cable Bus wire Make sure that the indoor unit with the unit number 00 is connected to the outdoor unit using a transmission cable 9 5 3 Dual remote controllers e Two separate remote controllers can be used to operate the indoor units e The timer and self diagnosis functions cannot be used on the slave unit of remote controller 1 Wiring method indoor unit to remote controller Indoor unit When ground wire is necessary Remote controller Remote controller 2 Remote controller DIP switch 1 setting Set the remote controller DIP switch 1 No 2 according to the following table pC DIPSW1No 2 Masterunit OFF En 17 10 TEST RUN 11 CHECK LIST CHECK ITEMS 1 ls operation of each button on the remote control unit normal 2 Does each lamp light normally 3 Do not air flow direction louvers operate normally 4 Is the drain normal 5 Is there any abnormal noise and vibration during opera tion e Do not operate the air conditioner in the running state for a long time
8. unit Indoor unit master Twin type Indoor unit 2 slave Remote controller Triple type Outdoor unit Remote Indoor Indoor Indoor controller unit unit unit G master slave slave Transmission cable Power supply cable s Power supply cable Remote controller cable Bus wire 2 DIP switch setting Indoor unit Set the unit number of each indoor unit using the DIP switches on the indoor unit circuit board See the follow ing table and figure The DIP switches are normally set to make the unit number 00 Indoor unit Unit number DIP SWITCHNo Le aa a a o o oF oF oF C DIP switches Example Unit number 02 Circuit board in the control box of indoor unit NOTE Be sure to set the unit numbers sequentially En 15 3 Remote controller setting 1 Turn on all of the indoor units When the indoor units are turned on error codes 01 and 31 will be displayed however these error codes will be deleted by setting the remote controller Therefore continue with the setting procedure 2 Set the master and slave settings Set the indoor unit that is not connected to the outdoor unit using a transmission cable as the 01 The setting value is factory set to OO Function r Oo o o 00 Master 51 01 Slave 01 Slave 02 Only triple type 3 After completing the function settings t
9. al DODO uu 2 Press the SET BACK button to select the indoor unit number of indoor unit that changes the setting C E SET BACK Unit number of INDOOR UNIT Set the unit number of each indoor unit using the DIP swiches on the indoor unit circuit board The DIP switches are normally set to make the unit number 00 Refer to 9 5 Special installation methods En 13 3 Press the set time buttons to select the function number Function number 4 Press the set temperature buttons V A to select the setting value The display flashes during setting value selection m GSET TEMP 5 bl Setting value 5 Press the TIMER SET button to confirm the setting Press the TIMER SET button for a few seconds until the setting value stops flashing If the setting value display changes or if is displayed when the flashing stops the setting value has not been set correctly An invalid setting value may have been selected for the indoor unit 6 Repeat steps 2 to 5 to perform additional settings Press the set temperature buttons VY A and fan control button simultaneously again for more than 5 seconds to cancel the function setting mode In addition the function setting mode will be automatically canceled after 1 minute if no operation is performed 7 After completing the FUNCTION SETTING be sure to turn off the power and turn it on again N CAUTION
10. each us weight of the indoor unit Install the units securely so that age of static pressure they do not topple or fall Determine the applicable range of static pressure in each l mode and wind volume referring to the Technical manual N CAUTION e Do not install the indoor unit in the following areas e Area with high salt content such as at the seaside It will deteriorate metal parts causing the parts to fall or the unit to leak water e Area filled with mineral oil or containing a large amount of splashed oil or steam such as a kitchen It will dete riorate plastic parts causing the parts to fall or the unit to leak water e 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 e 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 e Area where animals may urinate on the unit or ammo nia may be generated e Do not install where there is the danger of combustible gas leakage e Do not install the unit near a source of heat steam or flammable gas e Install the indoor unit outdoor unit power supply cable transmission cable and remote control cable at least 1 m away from a television or r
11. AIR CONDITIONER INDOOR UNIT Duct type INSTALLATION MANUAL For authorized service personnel only A CAUTION R410A REFRIGERANT This Air Conditioner contains and operates with refrigerant R410A THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL Refer to Commonwealth State Territory and local legislation regulations codes installation amp operation manuals before the installation maintenance and or service of this product Contents SAFETY PRECAUTIONS vec scioccsteccosssdenndinanaedectousndncdehes 2 2 ABOUT THE UNIT 2 1 Precautions for using R410A refrigerant 2 2 2 Special tools for R410A cccccceccceseeeeeeeseeeees 2 23s ACCESSOS anro ei A EAEN 3 2 4 Optional parts wcoctxsaceccceaucens testcen eacccncerccteneeeeeces 3 3 STATIC PRESSURE CHARACTERISTIC 000 4 INSTALLATION WORK 4 1 Selecting an installation location cc0 4 4 2 Installation dimension ccccceeeeeseeeeeeeeeeeaees 5 4 3 Installation the UN eicciccccecscinadescctacdacecestescnneteecedaes 5 5 PIPE INSTALLATION 5 1 Selecting the pipe material cceeccece neers 7 5 2 Pipe requirement cc ccoccescosetenecntcucdtnecenievzctinnccasecnic 7 5 3 Flare connection pipe connection 06 7 5 4 Installing heat insulation ccccceeeeeeeeeeeeeeeees 8 INSTALLING DRAIN HOSE cccceeeceeeeeeeeeeeeeeeeees 9 ELECTRICAL WIRIN
12. G 7 1 Electrical requir Me nt 0 sccescsccccsescctsscesteces 10 T2 Wining MEMO wicutacnortataimorentantcncatenteandsinnsdiaesonas 10 10 11 12 13 14 REMOTE CONTROLLER SETTING 8 1 Installing the remote controller 000 12 8 2 Setting the dip SWitChes cccccsseeeeeeseeeeeees 13 FUNCTION SETTING 9 1 Belore Seting xis ccecnccsccisassanvaceceactatesncedaraaneccdcntaats 13 9 2 Operation Method scccccevaceeesrenierancncuacntiancs 13 9 3 Fu ncton Selling sinakesctssicssceosaxpuansdaaetnensescereerennes 14 9 4 Setting the room temperature detection CANON aian aE N E OE 15 9 5 Special installation methods ccccceeseeeeees 15 MSN erren caraatesnncenenstantensattenssasrananaiantedss 18 CHECK CIS eee tee eee ner RR renee ere 18 ERROR CODE Sesar O EA EEO 19 FRESH AIR INTAKE sccssiccceccnvssadenvntonadsstatrintweatencsnes 20 CUSTOMER GUIDANCE rcccicsineericenseescnisinsinetetentnstaads 20 PART NO 9379127011 1 SAFETY PRECAUTIONS 2 2 Special tool for R410A e Be sure to read this Manual thoroughly before installation e 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 This mark indicates procedures which N WA
13. RNING if improperly performed might lead to the death or serious injury of the user e Request your dealer or a professional installer to in stall 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 e 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 e If refrigerant leaks while work is being carried out ven tilate the area If the refrigerant comes in contact with a flame it produces a toxic gas e Installation work must be performed in accordance with national wiring standards by authorized personnel only This mark indicates procedures which if improperly performed might possibly result in personal harm to the user or damage to property N CAUTION 2 ABOUT THE UNIT 2 1 Precautions for using R410A refrigerant WARNING e Do not introduce any substance other than the pre scribed refrigerant into the refrigeration cycle If air enters the refrigeration cycle the pressure in the refrigeration cycle will become abnormally high and cause the piping to rupture If there is a refrigerant leak make sure that it does not exceed the concentration l
14. adio 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 condi tions 2 Mode setting It is possible to change the setting of static pressure mode Refer to 9 FUNCTION SETTING e If children under 10 years old may approach the unit take preventive measures so that they cannot reach the unit e Take precautions to prevent the unit from falling En 4 1 Install the indoor unit on a place having a sufficient strength so that it withstands against the weight of the indoor unit 2 The inlet and outlet ports should not be obstructed the air should be able to blow all over the room 3 Leave the space required to service the air conditioner 4 Install the unit where connection to the outdoor unit is easy 5 Install the unit where the connection pipe can be easily installed 6 Install the unit where the drain pipe can be easily installed 7 Install the unit where noise and vibrations are not ampli fied 8 Take servicing etc into consideration and leave the spac es Also install the unit where the filter can be removed 9 Providing as much space as possible between the indoor unit and the ceiling will make work much easier 10 If installing in a place where its humidity exceeds 80 use heat insulation to prevent condensation 4 2 Installation dimension Provide
15. cal requirement Power supply cable Earth cable Transmission cable Conductor size Conductor size Max length mm m 0 3 MIN This length shall be the total extended length in the system of the group e Use conformed cable with Type 245 IEC57 Power supply cable or transmission cable e Perform all electrical work according to the standard e Install circuit breakers which have the terminal spacing of more than 3 mm in a place of near the indoor unit and outdoor unit e Wiring size must comply with the applicable local and national code N CAUTION e Be sure to execute the electrical work according to the Laws of each country and the Installation Instructions In addition be sure to set as exclusive line and use the rated voltage and circuit breaker 7 2 Wiring method 7 2 1 Connection diagrams Standard pair Transmission cable Outdoor unit Wired remote contoller Indoor unit Power supply cable Remote controller cable e Ground the remote controller if it has a ground wire Wired remote controller is recommended using simultaneous twin or triple connection Simultaneous twin Transmission cable Outdoor unit Indoor unit Master Wired remote contoller Power supply cable sable e Connect the remote controller wires to the master unit e Ground the remote controller if it has a ground wire Simultaneous triple Transmissition Indoor unit cable Master Outd
16. controller in a place where it will be exposed to direct sunlight or directly below the air outlet of the indoor unit Do not touch the remote controller PC board and PC board parts directly with your hands Install the remote controller wires so as not to be direct touched with your hand e Do not wire the remote controller cable and the bus wire together with or parallel to the connection cables trans mission cables and power supply cables of the indoor and outdoor units It may cause erroneous operation Temperature sensor e When installing the bus wire near a source of electro magnetic waves use shielded wire e Do not set the DIP switches either on the air conditioner or the remote controller in any way other than indicated in this manual or the manual that is supplied with the air conditioner Doing so may result in an accident En 12 8 1 Installing the remote controller Open the operation panel on the front of the remote controller remove the two screws indicated in the following figure and then remove the front case of the remote controller When installing the remote controller remove the connector from the front case The wires may break if the connector is not removed and the front case hangs down When installing the front case connect the connector to the front case Front case back side Rea Connector When remote controller cable is embedded 1 Embed the remot
17. e controller cable and box 2 Pass the remote controller cable through the hole in the rear case and connect the remote controller cable to the remote controller terminal blocks specified in figure 3 Clamp the remote controller cable sheath with the binder as shown in figure 4 Cut off the excess binder 5 Install the rear case to the wall box etc with two screws figure e When connecting the remote controller wires do not overtighten the screws Ground the remote controller if it has a ground wire Remote controller cable Wrap the connector lt lt and remote controller wires with vinyl tape or some other type of insulation as shown in the figure Remote controller 120 17 4__ Unit mm 8 2 Setting the dip switches Set the remote controller DIP switches Example Front case back side Do not use this DIP switch 2 setting Refer to 9 5 3 Dual remote controllers Cannot be used Do not change Cannot be used Do not change Cannot be used Do not change Memory backup setting Set to ON to use bat teries for the memory backup If batteries Invalidity Validity are not used all of the settings stored in memory will be deleted if there is a power failure Factory setting Install the front case after setting the DIP switch When installing the front case connect the connector to
18. hose instal lation side e Stick the small drain hose insulation at the drain cap side 450 370 80 O i 80 Drain hose Drain hose insulation insulation large large unit r Lie Drain hose Drain hose D Drain hose insulation small Drain hose insulation small Unit IN Unit mm e Cover the drain cap with the drain hose insulation En 9 7 ELECTRICAL WIRING e Electrical work must be performed in accordance with this Manual by a person certified under the national or regional regulations Be sure to use a dedicated circuit for the unit An insufficient power supply circuit or improperly per formed electrical work can cause serious accidents such as electric shock or fire e Before starting work check that power is not being sup plied to the indoor unit and outdoor unit e Use the included transmission cables and power cables or ones specified by the manufacturer Improper connec tions insufficient insulation or exceeding the allowable current can cause electric shock or fire For wiring use the prescribed type of wires connect them securely making sure that there are no external forces of the wires applied to the terminal connections Improperly connected or secured wires can cause seri ous accidents such as overheating the terminals electric shock or fire Do not modify the power cables use extension cables or use any branches in the wiring Improper connectio
19. imit If a refrigerant leak exceeds the concentration limit it can lead to accidents such as oxygen starvation Do not touch refrigerant that has leaked from the refriger ant pipe connections or other area Touching the refriger ant directly can cause frostbite If a refrigerant leak occurs during operation immediately vacate the premises and thoroughly ventilate the area If the refrigerant comes in contact with a flame it produces a toxic gas En 2 N WARNING e To install a unit that uses R410A refrigerant use dedicat ed tools and piping materials that have been manufac tured specifically for R410A use Because the pressure of R410A refrigerant is approximately 1 6 times higher than the R22 failure to use dedicated piping material or improper installation can cause rupture or injury Furthermore it can cause serious accidents such as water leakage electric shock or fire Gauge manifold Charging hose Vacuum pump Gas leakage detector The pressure in the refrigerant system is extremely high and can not be measured with a conven tional gauge To prevent erroneous mixing of other refrigerants the diameter of each port has been changed It is recommended to use a gauge manifold with a high pressure display range of 0 1 to 5 3 MPa and a low pressure dis play range of 0 1 to 3 8 MPa To increase pressure resistance the hose material and base size were changed The charging port th
20. ion valve or capillary tube may become blocked with contaminants Improper pipe selection will degrade performance As an air conditioner using R410A incurs pressure higher than when using conventional refrigerant it is necessary to choose adequate materials e Thicknesses of copper pipes used with R410A are as shown in the table e Never use copper pipes thinner than those indicated in the table even if they are available on the market Thicknesses of Annealed Copper Pipes R410A Pipe outside diameter mm in Thickness mm 6 35 1 4 9 52 3 8 12 70 172 15 88 518 19 05 3 4 5 2 Pipe requirement N CAUTION e Refer to the Installation Manual of the outdoor unit for description of the length and the diameter of connecting pipe or for difference of its elevation e Use pipe with water resistant heat insulation N CAUTION e Install heat insulation around both the gas and liquid pipes Failure to do so may cause water leaks Use heat insulation with heat resistance above 120 C Reverse cycle model only In addition if the humidity level at the installation loca tion of the refrigerant piping is expected to exceed 70 install heat insulation around the refrigerant piping If the expected humidity level is 70 80 use heat insulation that is 15 mm or thicker and if the expected humidity ex ceeds 80 use heat insulation that is 20 mm or thicker If heat insulation is used that is not as thic
21. itch operated Outdoor discharge pipe temperature sensor error Outdoor heat exchanger temperature sensor outlet error 29 Outdoor heat exchanger temperature sensor middle error Troubleshooting Option Troubleshooting with the Receiver unit display Troubleshooting at the display is possible either on the wired or wireless remote control OPERATION Lamp GREEN o _ TIMER Lamp ORANGE P 3rd Lamp RED MANUAL AUTO button FUfirsu REMOTE CONTROL SIGNAL RECEVER The OPERATION TIMER and 3rd Lamp operate as follows table according to the error contents AMS halal 3rd Lamp Error contents Lamp Lamp x 2 times 3 times 4 times 5 times 8 time O 5 m Indoor signal error x x x i Wired remote controller abnormal Indoor room temperature sensor error Indoor heat exchanger tempera ture sensor middle error Indoor heat exchanger tempera ture sensor inlet error Float switch operated Outdoor discharge pipe tempera ture sensor error Outdoor heat exchanger temperature sensor outlet error Outdoor temperature sensor error Heat sink thermistor Inverter error ompressor temperature sensor error way valve temperature sensor error way valve temperature sensor error Outdoor heat exchanger temperature sensor middle error x 5 times Heat sink thermistor P F C error 2 times Indoor manual auto switch abnormal 4 time Power supply frequency detection error 2 ti
22. k as specified condensation may form on the surface of the insulation In addition use heat insulation with heat conductivity of 0 045 W m K or less at 20 C 5 3 Flare connection pipe connection 5 3 1 Flaring e 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 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 and is not cracked or scratched Dimension A mm Flare tool for R410A clutch type Pipe outside Dimension B2 mm diameter mm in 6 35 114 9 52 318 12 70 172 0100 5 15 88 5 8 19 05 G A When using conventional flare tools to flare R410A pipes the dimension A should be approximately 0 5 mm more than indicated in the table for flaring with R410A flare tools to achieve the specified flaring Use a thickness gauge to meas ure the dimension A En 7 Width across flats diameter mm in of Flare nut mm 12 70 172 15 88 678 lt 19 05 3 4 5 3 2 Bending pipes
23. me IPM protection 3 time CT error 5 time Compressor location error 6 times Outdoor fan error Connected indoor unit abnormal 8 times O Outdoor unit computer communi O x cation error 5 times Ox o 2 times O Inverter error x 6 times 2 or 3 times Indoor fan abnormal 7 times 2 times O Discharge temperature error Excessive high pressure protec 7 times 4 times O 4 way valve abnormal Pressure switch abnormal Pres times 0 5s ON 0 5s OFF Flash X OFF Gee a 2 times 2 times 2 times O O O 2 times O O O O x O x O x O O O O 3 times O 3 times 8 times x x 2 times x 3 times 3 times 3 times 3 times 3 time 3 times o O i oO 3 times O x 4 times O 3 times 4 times 4 time 5 time 5 times 5 times 5 times 5 times xo A n x gt on n _ EE gt r EAE xo SS i 5 times i i ee ed S En 19 13 FRESH AIR INTAKE Processing before use 1 When taking in fresh air cut a slit shaped cabinet in the left side of the outer case with nippers Cabinet iron plate Square hole CAUTION e When removing the cabinet iron plate be careful not to damage the indoor unit internal parts and surrounding area outer case e When processing the cabinet iron plate be careful not to injure you
24. ns insufficient insulation or exceeding the allowable current can cause electric shock or fire Match the terminal block numbers and connection cable colors with those of the outdoor unit Erroneous wiring may cause burning of the electric parts Securely connect the connection cables to the terminal blocks In addition secure the cables with wiring holders Improper connections either in the wiring or at the ends of the wiring can cause a malfunction electric shock or fire Always fasten the outside covering of the connection cable with the cable clamp If the insulator is chafed electric leakage may occur Securely install the electrical box cover on the unit An improperly installed electrical box cover can cause serious accidents such as electric shock or fire through exposure to dust or water e Install sleeves into any holes made in the walls for wiring Otherwise a short circuit could result e Install a ground leakage breaker In addition install the ground leakage breaker so that the entire AC main power supply is cut off at the same time Otherwise electric shock or fire could result e Install a ground leakage breaker If a ground leakage breaker is not installed it may cause electric shock or fire e Always connect the ground wire Improper grounding work can cause electric shocks e Install the remote controller cable and bus wire so as not to be direct touched with your hand En 10 7 1 Electri
25. ntrol UTD ECS5A set Unit mm controller py UTZ PX1NBA For connecting the remote bea Unit control 0 For installing the remote Wired is per M4 x 16 6 2 controller remote UTBUD formed by ae control wired For indoor side pipe joint ler remote gas controller F Coupler heat insulation large cE Coupler heat or indoor side pipe joint insulation small 1 liquid Se oe UTY LRH cu uni Special nut A E For suspending the indoor 4 large flange unit from ceiling Wired remote controller is recommended using simultaneous twin or triple connection Special nut B For suspending the indoor small flange 4 unit from ceiling 1 Not supplied for ART series En 3 3 STATIC PRESSURE CHARACTERISTIC 4 INSTALLATION WORK CAUTION Especially the installation place is very important for the split e If the applicable static pressure does not match the static pressure mode the static pressure mode maybe changed to another mode automatically type air conditioner because it is very difficult to move from place to place after the first installation 4 1 Selecting an installation location Recommended range of Decide the mounting position together with the customer as external static pressure Pa follows ZN WARNING 1 Static pressure mode e Select installation locations that can properly support the It is necessary to set up a static pressure mode for
26. oor unit Wired remote contoller Remote controller cable Power supply Bus wire cable Local purchase e Connect the remote controller wires to the master unit e Ground the remote controller if it has a ground wire 7 2 2 Connection cable preparation e Keep the earth wire longer than the other wires o Power supply cable Earth wire M Transmission cable oO oe lt aN How to connect wiring to the terminals For strand wiring 1 Use crimp type terminals with insulating sleeves as shown in the figure below to connect to the terminal block 2 Securely crimp the crimp type terminals to the wires using an appropriate tool so that the wires do not come loose Crimp type terminal P G N Sleeve 3 Use the specified wires connect them securely and fasten them so that there is no stress placed on the terminals 4 Use an appropriate screwdriver to tighten the terminal screws Do not use a screwdriver that is too small other wise 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 WARNING e Use crimp type terminals and tighten the terminal screws to the specified torques otherwise abnormal overheat ing may be produced and possibly cause serious dam age inside the unit Tightening torque N m
27. read diameter for R410A is 1 2 UNF 20 threads per inch A conventional vacuum pump can be used by installing a vacuum pump adapter Be sure that the pump oil does not backflow into the system Use one capable for vacuum suction of 100 7 kPa 5 Torr 755 mmHg Special gas leakage detector for R410A refrigerant e For installation purposes be sure to use the parts sup plied by the manufacturer or other prescribed parts ge The use of non prescribed parts can cause serious ac Square UTD SF045T cidents such as the unit to falling water leakage electric flange shock or fire e The following installation parts are furnished Use them as nee E Flexible e Keep the Installation Manual in a safe place and do not Z duet UTD RD202 discard any other accessories until the installation work has been completed E Name and Shape 3 Ke A For suspending the indoor X gt lt Round UTD RF204 CF flange s 1188 Drain hose Insulates the drain hose insulation 1 and vinyl hose Long life Binder Large For fixing the drain hose ee UTD LF25NA pa 4 3 507 Unit mm Binder Small p For remote controller and 1 5 P unit from ceiling ALAS e remote controller cable New amen binding ity space Binder For electrical wiring can be kpaa UTD RS100 installing Wire clamper For electrical wiring the Remote the remote Remote For air conditioner opera controller controller tion 4 External co
28. rself with burrs etc 2 Install the round flange option parts to the fresh air intake Round duct 3 Connect the duct to the round flange 4 Seal with a band and vinyl tape etc so that air does not leak from the connection En 20 14 CUSTOMER GUIDANCE Explain the following to the customer in accordance with the operating manual 1 Starting and stopping method operation switching tem perature adjustment timer air flow switching and other remote control unit operations 2 Air filter removal and cleaning and how to use the air louvers 3 Give the operating and installation manuals to the cus tomer
29. t connection Duct installation pattern EE CUT PART 1 Square duct 2 Round duct outlet x4 This is the factory setting When using as a square duct 1 Cut the slit seam gt with a cutter RAEE wne hga 2 Turn up the insulation around the points to be cut accord ing to the outlet port shape working points so that the insulation does not stick out at the ZY part Cut Cul 3 Cut with nippers and remove the sheet metal 4 Since there is a slit in the insulation use radio pliers tweezers etc to stretch the screw hole part used when installing the round flange and square flange when con necting the duct 5 PIPE INSTALLATION e Be careful that foreign matter oil water etc does not enter the piping Also when storing the piping securely seal the openings by pinching taping etc e While welding the pipes be sure to blow dry nitrogen gas through them 5 1 Selecting the pipe material N CAUTION e Use pipes that have clean external and internal sides without any contamination which may cause trouble during use such as sulfur oxide dust cutting waste oil or water It is necessary to use seamless copper pipes Material Phosphor deoxidized seamless copper pipes It is desirable that the amount of residual oil is less than 40 mg 10 m Do not use copper pipes that have a collapsed de formed or discolored portion especially on the interior surface Otherwise the expans
30. the front case My 9 FUNCTION SETTING e Confirm whether the wiring work for outdoor unit has been finished e Confirm whether the cover for electric control box on the outdoor unit is close Refer to the installation manual enclosed with the remote control unit when the wireless remote control unit option is used 9 1 Before setting 1 Check the remote controller wiring and DIP switch set tings 2 Check the indoor and outdoor unit wiring and circuit board switch settings and then turn on the indoor and outdoor units After 8C has flashed on the set temperature dis play for several seconds the clock display will appear in the center of the remote controller display The clock display will appear in the center of the remote controller display 9 2 Operation method e This procedure changes to the function settings used to con trol the indoor unit according to the installation conditions Incorrect settings can cause the indoor unit malfunction e After the power is turned on perform the FUNCTION SETTING according to the installation conditions using the remote controller e Settings will not be changed if invalid numbers or setting values are selected Operation Method 1 Press the set temperature buttons Y A and fan control button simultaneously for more than 5 seconds to enter the function setting mode m GSET TEMP OR FAN A SU Wig Ty WE TH FR SA
31. the space around the unit as shown in the following figure 300 150 or morg or more Unit mm Maintenance hole dimension It shall be possible to install and remove the control box 500 500 Unit mm It shall be possible to install and remove the control box fan units and filter al pn af Ne Maintenance hole j 300 i n Intake panel Control box 1550 Unit mm 4 3 Installation the unit N WARNING e Install the air conditioner in a location which can with stand a load of at least five times the weight of the main unit and which will not amplify sound or vibration If the installation location is not strong enough the indoor unit may fall and cause injuries e If the job is done with the panel frame only there is a risk that the unit will come loose Please take care 4 3 1 Installing the hangers N WARNING e When fastening the hangers make the bolt positions uniform Hanging bolt installation diagram Example Top side Left side Unit mm The distance of X is adjustable according to the place of the hanging bolts MAX 550 mm MIN 410 mm Slide the unit in the arrow direction and fasten it Hanging bolt M10 Obtained locally Special nut A Washer Obtained locally Special nut B Hanger Bolt Strength N m kgf cm 9 81 to 14 71 100 to 150 N CAUTION e Fasten the unit securely with special n
32. ting Unit mm CAUTION e Install the drain hose in accordance with the instruc tions in this Installation Manual and keep the area warm enough to prevent condensation Problems with the pip ing may lead to water leaks NOTE INSTALL THE DRAIN HOSE e Install the drain hose with downward gradient 1 50 to 1 100 and so there are no rises or traps in the hose e Use general hard polyvinyl chloride pipe VP25 outside diameter 38 mm and connect it with adhesive polyvinyl chloride so that there is no leakage e When the hose is long install supporters e Do not perform air bleeding e Always heat insulate the indoor side of the drain hose Outlet Drain Good Bad Arrange the drain hose lower than this portion Bad Rise Bad Air bleeding pe Supporter 1 5to2m e When the unit is shipped from the factory the drain port is on the left side control box side e When using the drain port on the right side of the unit rein stall the drain cap to the left side drain port Drain port Drain cap Binder CAUTION e Always check that the drain cap is installed to the unused drain port and is fastened with the Binder If the drain cap is not installed or is not sufficiently fastened by the Binder water may drip during the cooling operation e Cut the drain hose insulation at a position approximately 80 mm from the end with cutters etc e Stick the large drain hose insulation at the drain
33. trol Setting Other Functions e The following settings are also possible depending on the operating conditions The setting value is factory set to 00 Auto Restart 7 M Function Setting Indoor Room Temperature Sensor Switching Function Wired remote controller only Nae Function Setting i 42 ee e If setting value is 00 room temperature is controlled by the indoor unit temperature sensor e If setting value is 01 room temperature is controlled by either indoor unit temperature sensor or remote control unit sensor Setting Record e Record any changes to the settings in the following table Static pressure Cooler room temperature correction Setting Value Auto restart Indoor room temperature sensor switching function After completing the FUNCTION SETTING be sure to turn off the power and turn it on again Heater room temperature correction 9 4 Setting the room temperature detection location The detection location of the room temperature can be se lected from the following two examples Choose the detection location that is best for the installation location A Indoor unit setting factory setting The room temperature is detected by the indoor unit tempera ture sensor 1 When the THERMO SENSOR button is pressed the lock display flashes because the function is locked at the fac tory Indoor unit 8 SER 1 A E icim D
34. urn off all of the indoor units and then turn them back on If error code 01 1F 30 31 or 32 is displayed there may be an incorrect setting Perform the remote controller setting again Outdoor unit Twin type Remote Indoor Indoor controller unit unit 2 master slave DIP switch setting Indoor unit Unit number Remote controller setting Unit number Setting value Master Slave Triple type Remote Indoor Indoor Indoor controller unit unit 2 unit G master slave slave DIP switch setting Indoor unit Unit number Remote controller setting Unit number Setting value Master Slave Transmission cable Power supply cable s Power supply cable Remote controller cable Bus wire En 16 9 5 2 Group control system A number of indoor units can be operated at the same time using a single remote controller 1 Wiring method indoor unit to remote controller Indoor Indoor Indoor Indoor unit unit unit G unit 4 controller cable Remote controller When ground wire is necessary 2 DIP switch setting Indoor unit Set the unit number of each indoor unit using the DIP switches on the indoor unit circuit board See the follow ing table The DIP switches are normally set to make the unit number 00 Unitnumber DIP SWITCHNo OF ON ON OFF 08 OFF OFF OFF ON 09 ON OFF
35. uts A and B 4 3 2 Leveling Base vertical direction leveling on the unit right and left Left side Base horizontal direction leveling on top of the unit LALL RLR 0 5 mm Drain hose Give a slight tilt to the side to which the drain hose is con nected The tilt should be in the range of 0 mm to 5 mm 4 3 3 Intake duct connection Follow the procedure in the following figure to the ducts Unit mm The air inlet duct can be changed by replacing the intake grille and flange For the bottom air intake follow the procedure of for installation The factory setting is back air intake N CAUTION e When air is taken in from the bottom side the operating sound of the product will easily enter the room Install the product and intake grilles where the affect of the operat ing sound is small En 6 N CAUTION e If an intake duct is installed take care not to damage the temperature sensor e Be sure to install the air inlet grille and the air outlet grille for air circulation The correct temperature cannot be detected Air Outlet Grille Room Air Inlet Grille e Grills must be fixed so that man cannot touch indoor unit fan and cannot be removed by only hand operation without tool e Be sure to install the air filter in the air inlet If the air filter is not installed the heat exchanger may be clogged and its performance may decrease 4 3 4 Outlet duc
36. with the pipe in order to tighten the flare nut cor rectly e Tighten the flare nuts with a torque wrench using the specified tightening method Otherwise the flare nuts could break after a prolonged period causing refrigerant to leak and generate a hazardous gas if the refrigerant comes into contact with a flame En 8 Tighten with two wrenches Holding wrench Torque wrench pale Indoor unit pipe Body side Connection pipe 5 4 Installing heat insulation N CAUTION e After checking for gas leaks refer to the Installation Manual of the outdoor unit perform this section e Install heat insulation around both the large gas and small liquid pipes Failure to do so may cause water leaks After checking for gas leaks insulate by wrapping insula tion around the two parts gas and liquid of the indoor unit coupling using the Coupler Heat Insulation After installing the Coupler Heat Insulation wrap both ends with vinyl tape so that there is no gap Coupler heat insulation CEEL No gap Coupler heat Be sure to overlap the gt insulation insulation N CAUTION e Must fit tightly against body without any gap 6 INSTALLING DRAIN HOSE Install the drain hose according to the measurements given in the following figure 240 Left side Drain pipe Gas pipe 38 mm O D Drain pipe 38 mm O D The drain cap is attached at the factory set
37. y flash slowly En 18 Pay special attention to the check items below when install ing the indoor unit s After installation is complete be sure to check the following check items again If not performed CHECK Has the indoor unit Vibration noise indoor been installed correctly unit may drop Has there been a check for gas leaks refriger ant pipes Has heat insulation Wier leans work been completed g Does water drain easily from the indoor units waler iGakage ee Are the wires and pipes all connected com pletely Is the connection cable No operation heat or the specified thickness burn damage Are the inlets and outlets free of any obstacles After installation is com pleted has the proper operation and handling been explained to the user No cooling No heating No operation heat or burn damage No cooling No heating 12 ERROR CODES Troubleshooting at the remote control LCD This is possible only on the wired remote control Self diagnosis If an error occurs the following display will be shown EE will appear in the set room temperature display Unit number Error code SU MO U WE 1H FR SA Ex Self diagnosis 01 Indoor signal error 27 ae 00 Wired remote controller abnormal Indoor room temperature sensor error 04 Indoor heat exchanger temperature sensor middle error Indoor heat exchanger temperature sensor inlet error 09 Float sw
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