INSTALLATION MANUAL
Contents
1. _ n x x _ n x i i x n x O O O O O JO JO O O O O O _ O 5 times 8 times O 5 times 2 times Inverter error 6 times 2 or 3 times O x Indoor fan abnormal 7 times 2 times O Discharge temperature error Excessive high pressure protec 7 times 3 times O x tion on cooling 7 times 4 times O 4 way valve abnormal Pressure switch abnormal Pres Tiimes Gtimes O x Compressor temperature error _ Tiimes O 7times Q x Low pressure error times O Pasines O x Active fiter abnormal Btimes O Atimes O x PFC circuteror 8 times P F C printed circuit board error 9 times Refrigerant circuit address set up error 9 times Master unit Slave unit set up error 9 times Connected the indoor number set up error 0 5s ON 0 5s OFF Flash X OFF i i O O O TE i O Troubleshooting at the remote control LCD This is possible only on the wired remote control Option Self diagnosis This is possible only on the wired remote control Option 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 1 FR SA 27 o0 O Wired remote controller abnormal Indoor room temperature sensor error Indoor heat exchanger temperature sensor mid2. 1 Press the SET TEMP A W buttons to select the func tion number Press the MODE button to switch between the left and right digits 2 Press the FAN button to proceed to setting the value Press the FAN button again to return to the function number selection 3 Press the SET TEMP A W buttons to select the set ting value Press the MODE button to switch between the left and right digits 4 Press the TIMER MODE button and START STOP button in the order listed to confirm the settings 5 Press the RESET button to cancel the function setting mode 6 After completing the FUNCTION SETTING be sure to turn off the power and turn it on again Function number Setting value N CAUTION e After turning off the power wait 10 seconds or more before turning on it again The FUNCTION SETTING doesn t become effective if it doesn t do so Setting the Ceiling Height e Select the setting values in the table below according to the height of the ceiling The unit is factory set to OO Setting Description m Function Number Setting Value Standard 2 5 to 3 0 7 20 High ceiling 01 3 0 to or more Setting the Filter Sign e The indoor unit has a sign to inform the user that it is time to clean the filter e Select the time setting for the filter sign display interval in the table below according to the amount of dust or debris in the room The unit is factory set to 00 e If you
3. 7 WARNING Connection cable mm e Electrical work must be performed in accordance with 3 this Manual by a person certified under the national or regional regulations Be sure to use a dedicated circuit 2 e Use conformed cable with Type 245 IEC57 for the unit Perform all electrical work according to the standard An insufficient power supply circuit or improperly per 3 e Install circuit breakers which have the terminal spacing formed electrical work can cause serious accidents such of more than 3 mm in a place of near the indoor unit and as electric shock or fire outdoor unit CAUTION e Before starting work check that power is not being sup A plied to the indoor unit and outdoor unit e Be sure to execute the electrical work according to the l l Laws of each country and the Installation Instructions Use the included connection cables and power cables or In addition be sure to set as exclusive line and use the 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 5 them securely making sure that there are no external 6 2 Wiring method f f the wi lied to the terminal ions orces of the wires applied to the ermina connections 6 2 1 Connection diagrams Improperly connected or secured wires can cause seri ous accidents such as overheating the t
4. INDOOR UNIT Ceiling panel 80 or over E D f vA D gt mH gt O A 10 or over O pa a O O 2 2 a re Obstruction Unit mm En 4 3 3 Installation the unit 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 3 3 1 Preparing indoor unit installation Remove the intake grille and side cover 1 Remove the two Air filters 2 Remove the two Intake grilles For Left rear drain and Left drain Remove air filters and intake grilles at three places 3 Remove the Side cover A Right side and Side cover B Right and Left side For Left drain Remove both the Side cover A Right and Left side 4 This air conditioner can be set up to intake fresh air For information about how to install for fresh air intake refer to 14 FRESH AIR INTAKE Air filter Intake grille Au TW N Side cover Left side Side cover A Right side Side cover B Right side 3 3 2 Indoor unit installation e You can use the accessory template to help you install the indoor unit e The template helps you determine the appropriate locations for suspension bolts and pipe opening drain pipe and con nection cable Drilling position for Suspension
5. The use of non prescribed parts can cause serious ac controller remote controller cidents such as the unit falling water leakage electric shock or fire CEE e The following installation parts are furnished Use them as i required e Keep the Installation Manual in a safe place and do not discard any other accessories until the installation work has UTR DPB241 For Ceiling type been completed Name and Shape Drain hose insulation Adhesive type 70 x 230 T SE 3 INSTALLATION WORK VT wire For fixing the drain hose 3 Especially the installation place is very important for the split ___ 1 L 280mm type air conditioner because it is very difficult to move from place to place after the first installation Coupler heat insulation For indoor side pipe joint Gas pipe 3 1 Selecting an installation location Decide the mounting position together with the customer as Coupler heat insulation For indoor side pipe joint follows Small Liquid pi mO EE aua ppe Binder For fixing the coupler heat e Select installation locations that can properly support the Large insulator weight of the indoor unit Install the units securely so that they do not topple or fall Binder For fixing the coupler heat 3 Small insulator 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
6. 064 16 4 3 Flare connection pipe connection 14 FRESH AIR INTAKE wsccactectuecacesinactecssnenedadedvadeaepedorests 16 4 4 Installing heat insulation 15 CUSTOMER GUIDANCE cssccesessseesseesesstesseessessees 16 INSTALLING DRAIN PIPES wisiciscsicsnsccciscncctvenanncvveninns 8 6 ELECTRICAL WIRING csis isnicssessniossinansaadtavechstortieiantetas 9 6 1 Electrical requirement 6 2 Wiring method PART NO 9379122009 02 1 SAFETY PRECAUTIONS 2 2 Special tools 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 e 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 WARNING 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 com pleted Turning ON the power befo
7. bolt Ceiling Template Drilling position for piping 3 3 3 Location of ceiling suspension bolts 30 Suspension bolt pitch 1600 30 Dimensions Space Required for Installation t 10 o 155 INDOOR UNIT TOP VIEW 300 a Suspension bolt should INDOOR UNIT extend outward 30 to 75 mm Unit mm For Half Concealed Installation 3 3 6 Installing the indoor unit Suspension bolt pitch should be as shown in the figure 1 Lift unit so that suspension bolts pass through the suspen sion fittings at the sides four places and slide the unit back 40 Ceiling Opening 1580 40 Ceiling Li Ceiling Opening 640_ i 5 Ho t Suspension bolt should extend outward 30 to 50 mm INDOOR UNIT Unit mm 3 3 4 Select piping direction e Select connection piping and drain piping directions ta Left rear piping Top piping Sit piping only g Drain pipe only Connection pipe only Right rear piping 2 Fasten the indoor unit into place by tightening up the special B bolts and the M10 nuts Make sure that unit is secure and will not shift back and forth For Half Concealed Installation When installing the indoor unit in a semi concealed orienta tion make sure to reinforce the insulation of the unit on all sides Drops of water may fall from the unit if it is not thor oughly insulated Cut off t
8. do not wish the filter sign to be displayed select the setting value for No indication Setting Description F nction Number Setting Value hours Standard 2 500 Long interval 01 4 400 11 Short interval En 12 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 unit is factory set to 00 Setting Description Function Number Setting Value 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 unit is factory set to 00 o o ae i Setting Other Functions e The following settings are also possible depending on the operating conditions The unit is factory set to 00 Auto Restart Setting Description Function Number Setting Value M 40 Indoor Room Temperature Sensor Switching Function Wired remote controller only Setting Description Function Number Setting Value O 42 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 s
9. the mark 2 Insert batteries Be sure to align the battery polarities correctly 3 Close the battery compartment lid N CAUTION e Take care to prevent infants from accidentally swallowing batteries e When not using the Remote Control Unit for an extended period remove the batteries to avoid possible leakage and damage to the unit e If leaking battery fluid comes in contact with your skin eyes or mouth immediately wash with copious amounts of water and consult your physician e Dead batteries should be removed immediately and dis posed of properly either in a battery collection receptacle or to the appropriate authority e Do not attempt to recharge dry batteries NOTE e Never mix new and used batteries or batteries of different types e Batteries should last about one year under normal use If the Remote Control Unit s operating range becomes appre ciably reduced replace the batteries and press the RESET button with the tip of a ballpoint pen or other small object 7 2 Remote control unit holder installation N CAUTION e Check that the indoor unit correctly receives the signal from the remote control unit then install the remote control unit holder e Select the remote control unit holder selection site by paying careful attention to the following Avoid places in direct sunlight Select a place that will not be affected by the heat from a stove etc e Install the remote c
10. to Ff 3 Press the SET TEMP A W button to change the signal code between H g Match the code on the display to the air conditioner signal code 4 Press the MODE button again to return to the clock dis play The signal code will be changed ECONOMY FILTER RESET A SET SET TEMP SLEEP zZ lt gt SWING If no buttons are pressed within 30 seconds after the signal code is displayed the system returns to the original clock display In this case start again from step 1 The air conditioner signal code is set to A prior to shipment Contact your retailer to change the signal code The remote control unit resets to signal code A when the batteries in the remote control unit are replaced If you use a signal code other than signal code A reset the signal code after replacing the batteries If you do not know the air conditioner signal code setting try each of the signal codes H gt H gt q until you find the code which operates the air conditioner Indoor unit setting Remote control unit signal code A Primary setting Disconnect Connect Connect Disconnect Disconnect Disconnect ed o Indoor unit Printed circuit board 10 TEST RUN 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 a
11. 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 Secure both ends of the heat insulation material using Binder And finally fix connection pipe Liquid to connection pipe Gas by rolling vinyl tape over coupler heat insulation Gas and coupler heat insulation Liquid Coupler heat insulation Large LLLL LL LL LLL LD 7 nies Indoor unit fife 1 LLL LLL LLL LLL Connection pipe Gas Connection pipe Liquid Coupler heat insulation Small Binder Large Z Indoor unit Coupler heat insulation Binder Small Connection pipe Gas Indoor unit Connection pipe Liquid Vinyl tape e When using an auxiliary pipe make sure that the Binder used is insulated in the same way CAUTION e There should be no gaps between the insulation and the unit 5 INSTALLING DRAIN PIPES e Install the drain pipe 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 e Inst
12. unit to leak water Special nut B For installing indoor unit e Area filled with mineral oil or containing a large amount Small flange of splashed oil or steam such as a kitchen It will dete LS riorate plastic parts causing the parts to fall or the unit oar to leak water Installation For positioning the indoor gt gt ii i e Area that generates substances that adversely affect template S or unit j the equipment such as sulfuric gas chlorine gas acid or alkali It will cause the copper pipes and brazed joints Auxiliary pipe For connecting the piping 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 l e Do not install where there is the danger of combustible gas leakage For remote control unit 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 Remote control gt Use as remote control unit transmission cable and remote control cable at least 1 m unit holder holder 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 cou
13. AIR CONDITIONER INDOOR UNIT Ceiling type 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 INSTALLATION MANUAL For authorized service personnel only A CAUTION R410A Contents SAFETY PRECAUTIONS wivncntootunotesauiconsicacbousotienbidands 2 7 REMOTE CONTROLLER SETTING wiisissccscecsiccnncns ss 11 2 ABOUT THE UNIT 2 7 1 Load batteries ROS LRO3 x 2 2 1 Precautions for using R410A refrigerant 7 2 Remote control unit holder installation 2 2 Special tools for R410A 8 FUNCTION SET TING icc ccccaccaussnascascedanteestteaassniededadts 11 2 3 Accessories 8 1 Entering the function setting mode 2 4 Optional parts 8 2 Function setting 3 INSTALLATION WORK cccsesssseeeeeeeeeeeeseeeaaeeeeees 3 9 SELECTING THE REMOTE CONTROL UNIT 3 1 Selecting an installation location SIONAL CODE aid cesta ie ota nou acotur etamsenesnntee 13 3 2 Installation dimension 10 TEST RUN si crsccsienssseszsoassntacndsanssesnsanecanchocsnnesasinandioncess 14 ee Wel avon me unl 11 CHECK LIST 14 AIPE AREA N ua APE A G 12 ERROR CODES 15 4 1 Selecting the pipe material 4 2 Pipe requirement 13 SPECIAL INSTALLATION METHODS
14. ERATION TIMER FILTER Error contents Lamp Lamp Lamp x 2times x x 3 times x 4 times x 5 times x 8 time 2 times 2 times il Indoor signal error 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 al 2 times 3 times O 2 times 4 times O 2 times O 6 times O O 3 times 2 times O 3 times O 3 times O 3 times 3 times 3 times 3 times 3 times xo 4 times 7 times 8 times x 2 times x 3 times OJO i oO way valve temperature sensor error Outdoor heat exchanger temperature sensor middle error x 5 times O Heat sink thermistor P F C error 2 times Indoor manual auto switch abnormal 4 time Power supply frequency detection error 2 time IPM protection 3 time CT error 5 time Compressor location error 6 times Outdoor fan error 7 times Connected indoor unit abnormal Outdoor unit computer communi cation error 3 times O x 4 times O 3 times 4 times 4 time 5 time 5 time 5 times 5 times 5 times
15. G e Use crimp type terminals and tighten the terminal screws to the specified torques otherwise abnormal overheating may be produced and possibly cause serious damage inside the unit Tightening torque N m kgf cm 1 2 to 1 8 12 to 18 2 0 to 3 0 20 to 30 Screw with gS special washer WS ASP Crimp type terminal E Wire f Terminal blocks 6 2 3 Wiring procedure CAUTION e Use care not to mistake the power supply cable and con nection wires when installing Screw with special washer Crimp type terminal 1 Remove the two tapping screws and pull the Control box downward Control box Tapping screw 2 Remove the Cover A and install the connection cable 3 Please fix the connection cable with cable clamp And then install the wire cover with screws ae Control box Cover A 4 After wiring is complete clamp the connection cable with the cable clamp En 10 5 Attach the connection cable and cable clips Make sure that they are positioned so that they will not interfere with opening and closing of the intake grille or with removal and installation of the air filters Wired remote controller cable Option Connection cable To outdoor unit Connection cable Wired remote controller cable Cable clip 7 REMOTE CONTROLLER SETTING 1 Press and slide the battery compartment lid on the reverse side to open it Slide in the direction of the arrow while pressing
16. ake sure that the indoor unit with the unit number 0 is con nected to the outdoor unit using a transmission cable En 16 14 FRESH AIR INTAKE 1 Open up the knockout hole for the fresh air intake as shown in the figure If using half concealed installation open up the top knockout hole instead For half concealed installation Indoor unit N 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 yourself with burrs etc 2 Fasten the round flange optional to the fresh air intake as shown in the figure If using half concealed installation attach to the top ia us duct option parts After completing 3 INSTALLATION WORK 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 15 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 4 If the signal code is changed explain to the customer how it changed the system retu
17. al and internal sides without any contamination which may cause trouble dur ing 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 expansion 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 Thickness mm 0 80 0 80 0 80 1 00 1 20 4 2 Pipe requirement N CAUTION e Refer to the Installation Manual of the outdoor unit for description of the length of connecting pipe or for differ ence of its elevation 9 52 3 Gas 15 88 6 8 Diameter mm in En 6 e Use pipe with water resistant heat insulation 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 a
18. all the drain pipe with downward gradient 1 50 to 1 100 and so there are no rises or traps in the pipe e Use general hard polyvinyl chloride pipe VP25 outside diameter 38 mm e During installation of the drain pipe be careful to avoid applying pressure to the drain port of the indoor unit e When the pipe is long install supporters e Do not perform air bleeding En 8 e Always heat insulate 8 mm or over thick the indoor side of the drain pipe Drain pipe O Good Arrange the drain pipe lower than this portion WSASNA End in water 1 5 to 2 1 Install insulation for the drain pipe Cut the included insulation material to an appropriate size and adhere it to the pipe Unit m Drain pipe Insulation for drain pipe To be obtained locally Length should be at least 8 mm Drain pipe insulation accessories Indoor unit drain port Drain pipe insulation 7 waa wamwa AA AR Drain pipe CLL No gap 10 or over Unit mm 2 If Right rear piping fasten the drain pipe with VT wire so that the pipe slopes correctly within the indoor unit VT wire Drain hose Indoor unit rear view 3 If the drain hose will not be connected to the right rear piping cut the hole cover at the points indicated in Fig a and attach it to the piping hole as shown in Fig b Hole cover 6 ELECTRICAL WIRING 6 1 Electrical requirement
19. bnormal noise and vibration during opera tion e Do not operate the air conditioner in the running state for a long time NNN Am e Test running When the air conditioner is run by pressing the remote con trol unit test run button the OPERATION and TIMER Lamps flash slowly at the same time Operation method 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 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 neously flash slowly En 13 Using the wired remote control Option e For the operation method refer to the operating manual 1 Stop the air conditioner operation 2 Press the master control button and the fan control button simultaneously for 2 seconds or more to start the test run OC FAN 0 MODE OAN 3 Press the start stop button to stop the test run Test run display 11 CHECK LIST Pay special attention to the check items below when install ing the indoor un
20. bove 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 exceeds 80 use heat insulation that is 20 mm or thicker If heat insulation is used that is not as thick 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 4 3 Flare connection pipe connection 4 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 Use the special R410A flare tool or the conventional 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 3 Dimension B3 Flare tool for R410A mm clutch type Pipe outs
21. dle error ES Indoor heat exchanger temperature sensor inlet error 0 Float switch operated Outdoor discharge pipe temperature sensor error Outdoor heat exchanger temperature sensor outlet error 29 Outdoor heat exchanger temperature sensor middle error If CO appears in the unit number display there is a remote controller error Unit number Errorcode Content Co 1d Incompatible indoor unit is connected co ic Indoor unit lt remote control ler communication error 13 SPECIAL INSTALLATION METHODS 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 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 unit 1 Indoor unit 2 Indoor unit 3 Indoor unit O Bus wire Remote controller cord 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 and figure The DIP switches are normally set to make the unit number 0 Indoor unit DIP SWITCH No NOTE Be sure to set the unit numbers sequentially En 15 3 Remote controller setting 1 Turn on all of the indoor units 1 Turn on the indoor unit with the uni
22. edi cated 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 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 Gauge manifold 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 thread diameter for R410A is 1 2 UNF 20 threads per inch Charging hose A conventional vacuum pump can be used by installing a vacuum pump adapter Vacuum pump 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 Gas leakage detector R410A refrigerant WARNING Exterior Parisname Model No Summay e For installation purposes be sure to use the parts sup Wired Unit control is per plied by the manufacturer or other prescribed parts remote UTB UD formed by wired
23. erminals electric Connection cable to outdoor unit l shock or fire o Control line aHes 2 rated voltage and circuit breaker Do not modify the power cables use extension cables 2 or use any branches in the wiring Improper connections Power line insufficient insulation or exceeding the allowable current R can cause electric shock or fire Indoor unit Match the terminal block numbers and connection cable ce colors with those of the outdoor unit Erroneous wiring may cause burning of the electric parts e Wired remote controller cable Securely connect the connection cables to the terminal e blocks In addition secure the cables with wiring holders 3 Black Improper connections either in the wiring or at the ends 2 wns of the wiring can cause a malfunction electric shock or fire Indoor unit side Always fasten the outside covering of the connection cable with the cable clamp If the insulator is chafed Ground the remote controller if it has a ground wire electric leakage may occur Securely install the electrical box cover on the unit 6 2 2 Connection cable preparation An improperly installed electrical box cover can cause serious accidents such as electric shock or fire through exposure to dust or water Keep the earth wire longer than the other wires e Install sleeves into any holes made in the walls for wiring Otherwise a sho
24. ettings in the following table Setting Setting Value Ceiling height Filter sign Cooler room temperature correction Heater room temperature correction 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 9 SELECTING THE REMOTE CONTROL UNIT SIGNAL CODE When two or more air conditioners are installed in a room and the remote control unit is operating an air conditioner other than the one you wish to set change the signal code of the remote control unit to operate only the air conditioner you wish to set four selections possible When two or more air conditioners are installed in a room please contact your retailer to set the individual air conditioner signal codes e Confirm the setting of the remote control unit signal code and the printed circuit board setting If these are not confirmed the remote control unit cannot be used to operate for the air conditioner Selecting the Remote Control Unit Signal Code Use the following steps to select the signal code of the remote control unit Note that the air conditioner cannot receive a signal code if the air conditioner has not been set for the signal code 1 Press the START STOP button until only the clock is displayed on the remote control unit display 2 Press the MODE button for at least five seconds to display the current signal code initially set
25. he piping outlet cutting groove with a hacksaw etc FOR Left rear piping 6 Left piping Gisceuachineuiate e Transfer the Drain cap and Drain cap seal 10 to 20 mm thick Drain Cap seal 9 Drain Cap KOM ANNIN x iling panel 3 3 5 Drilling the holes and attaching the suspen 3 N CAUTION Indoor Unit Drain Pan Drain Cap Seal Drain Cap 0 0 Push cap all the way on as far as it will go sion bolts l e In order to check the drainage be sure to use a level dur 1 Drill 25 mm holes at the suspension bolt locations ing installation of the indoor unit If the installation site of 2 Install the bolts then temporarily attach Special nuts Aand the indoor unit is not level water leakage may occur B and anormal M10 nut to each bolt The two special nuts are provided with the unit The M10 nut must be obtained locally Refer to the figure Bolt Strength N kgf 980 to 1470 100 to 150 Ceiling panel Special nut A Included pee 10 to 15 Special nut B Included M10 Nut Obtained locally Unit mm En 5 4 PIPE INSTALLATION e Be more careful that foreign matter oil water etc does not enter the piping than with refrigerant R410A models 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 4 1 Selecting the pipe material N CAUTION e Use pipes that have clean extern
26. ide diameter mm in 6 35 1 4 9 52 3 8 13 2 12 70 1 2 0to0 5 15 88 5 8 19 05 3 4 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 diameter mm in of Flare nut mm o 635A T o 95238 s Width across flats 12 70 1 2 ON N 17 22 26 4 3 2 Bending pipes 4 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 e If pipes are shaped by hand be careful not to collapse them e Do not bend the pipes in 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 Do not bend or stretch the pipes more than three times CAUTION e To prevent breaking of the pipe avoid sharp bends specified tightening method Otherwise the flare nuts e If the pipe is bent repeatedly at the same place it will break could break after a prolonged period causing refrigerant 4 3 3 Pipe connection to leak and generate a hazardous gas if the refrigerant comes into contact with a flame N CAUTION e Be sure to apply the pipe against the p
27. it s After installation is complete be sure to check the following check items again CHECK ITEMS If not performed SHECK BOX correctly 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 Water eskade work been completed g Does water drain easily from the indoor units uictehieenade a 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 If you use a wired type remote control error codes will appear on the remote control display If you use a wireless remote control the lamp on the photo detector unit will output error codes by way of blinking patterns See the lamp blinking pat terns and error codes in the table below Troubleshooting Troubleshooting with the indoor display Troubleshooting at the display is possible either on the wired or wireless remote control FILTER Lamp Red TIMER Lamp Orange OPERATION Lamp Green En 14 The OPERATION TIMER and FILTER Lamp operate as fol lows table according to the error contents OP
28. ld still receive noise under some signal conditions Screw 2 For remote control unit e If children under 10 years old may approach the unit take M3 x 12 D holder installation preventive measures so that they cannot reach the unit En 3 Special nut A ey For installing indoor unit Large flange Remote control Use for air conditioner unit operation 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 Do not install the unit where it will be exposed to direct sunlight 3 2 Installation dimension e The ceiling rear height as shown in the figure Ceiling 150 or over 80 or over Ceiling Z A 10 or over Y Obstruction Midd TTL 11000 or over 2500 or over Unit mm FOR HALF CONCEALED INSTALLATION Ceiling panel
29. mote control unit Note that the air conditioner cannot receive a signal code if the air conditioner has not been set for the signal code The signal codes that are set through this process are ap plicable only to the signals in the FUNCTION SETTING For details on how to set the signal codes through the normal process refer to SELECTING THE REMOTE CONTROL UNIT SIGNAL CODE 1 Press the SET TEMP A W button to change the signal code between gt h gt p gt g Match the code on the display to the air conditioner signal code initially set to Ff If the signal code does not need to be selected press the MODE button and proceed to SEP 2 2 Press the TIMER MODE button and check that the indoor unit can receive signals at the displayed signal code 3 Press the MODE button to accept the signal code and proceed to STEP 2 C The air conditioner signal code is set to A prior to shipment Contact your retailer to change the signal code The remote control unit resets to signal code A when the batteries in the remote control unit are replaced If you use a signal code other than signal code A reset the signal code after replacing the batteries If you do not know the air conditioner signal code setting try each of the signal codes h gt p gt g until you find the code which operates the air conditioner En 11 8 2 Function setting STEP 2 Selecting the Function Number and Setting Value
30. ontrol unit with a distance of 7 m between the remote control unit and the photocell as the criteria However when installing the remote control unit check that it operates positively e Install the remote control unit holder to a wall pillar etc with the tapping screw 1 Mount the holder i pa a Screws L S 2 Set the remote control unit Insert 3 To remove the remote control unit when use at hand Slide up ff 8 FUNCTION SETTING e Confirm whether the wiring work for outdoor unit has been finished e Confirm whether the cap for electric control box on the outdoor unit is close e This procedure changes to the function settings used to control the indoor unit according to the installation condi tions Incorrect settings can cause the indoor unit malfunc tion e After the power is turned on perform the FUNCTION SETTING according to the installation conditions using the remote controller e The settings may be selected between the following two Function Number or Setting Value e Settings will not be changed if invalid numbers or setting values are selected 8 1 Entering the function setting mode e While pressing the FAN button and SET TEMP 4 simul taneously press the RESET button to enter the function setting mode STEP 1 Selecting the Remote Control Unit Signal Code Use the following steps to select the signal code of the re
31. ort on the indoor Pad unit and the outdoor unit correctly If the centering is im l proper the flare nut cannot be tightened smoothly If the flare nut is forced to turn the threads will be damaged Z N CAUTION e Hold the torque wrench at its grip keeping it in the right angle with the pipe in order to tighten the flare nut cor rectly e Tighten the flare nuts with a torque wrench using the Tighten with two wrenches Holding wrench Torque wrench pen e Do not remove the flare nut from the indoor unit pipe until immediately before connecting the connection pipe Indoor unit pipe Body side e Do not use mineral oil on flared part Prevent mineral Connection pipe oil from getting into the system as this would reduce the lifetime of the units da re Mcnguide 2 12 70 1 2 dia 49 to 61 490 to 610 15 88 5 8 dia 63 to 75 630 to 750 Filter guide 19 05 3 4 dia 90 to 110 900 to 1 100 2 Detach the caps and plugs from the pipes 3 Center the pipe against the port on the indoor unit and then turn the flare nut by hand Connection pipe Gas fadoorunit Connection pipe Liquid e For Top piping and Right piping connections use the Auxiliary pipe Gas pipe provided Top piping Connection pipe Gas Indoor unit rear Auxiliary pipe Gas pipe Right piping En 7 4 4 Installing heat insulation N CAUTION e After checking for gas leaks refer
32. re the work is complet ed 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 2 ABOUT THE UNIT CAUTION 2 1 Precautions for using R410A refrigerant WARNING e Do not introduce any substance other than the prescribed 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 limit 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 d
33. rns to signal code A when the batteries in the remote control unit are replaced 4 is applicable to using wireless remote control
34. rt circuit could result Earth ee ZB oo Power supply cable o or connection cable e Install a ground leakage breaker In addition install the ground leakage breaker so that the entire AC main power e Use a 4 core wire cable supply is cut off at the same time Otherwise electric shock or fire could result How to connect wiring to the terminals e Install a ground leakage breaker For strand wiring If a ground leakage breaker is not installed it may cause 1 Use crimp type terminals with insulating sleeves as shown electric shock or fire in the figure below to connect to the terminal block Always connect the ground wire 7 2 Securely crimp the crimp type terminals to the wires using i an appropriate tool so that the wires do not come loose Improper grounding work can cause electric shocks e Install the remote controller wires so as not to be direct nt nmp ype AO terminal touched with your hand exe Sleeve En 9 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 N WARNIN
35. t number 0 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 connected to an outdoor unit Refrigerant circuit Function Number Setting Value address 00 15 3 Set the master and slave settings Set the indoor unit that is connected to the outdoor unit using a trans mission cable as the master ar ya Function Number Setting Value oo o Slave or 4 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 NOTE When different indoor unit models are connected using the group control system some functions may no longer be avail able If the group control system contains multiple units that are operated simultaneously connect and set the units as shown below Standard Simultaneous Simultaneous twin triple DIP switch setting Indoor unit Remote controller setting Refrigerant circuit adress Master Slave Transmission cable Power supply cable Power supply cable Remote controller cable Bus wire M
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