INSTALLATION MANUAL INSTALLATIONSANLEITUNG
Contents
1. Wiring arrangement T Wiring arrangement Controller PCB Controller PCB 5 Clamps 7A oja EE 10 gt l Ho 2 o pp OM a MI thao B o H ls Cable tie mate Field supply EE Cable tie 9g Field supply o o o om e o gt IS D te e e eii euii Remove the existing connector and replace it with the remote sensor connector ensure that the correct connector is used The original connector should be insulated to ensure that it does not come into contact with other electrical circuitry Use conduit hole when external output cable is used Setting fo2. Custom code Heat air o1 Adust degrees C uo Diverta A Factory setting c temperature 31 trigger temperature by 4 degrees use DIP switch SET3 Swi ON trigger 02 Adust setting 02 To raise the trigger tempera DIP switch SET3 sw2 oF on 03 Adjust ture use setting 03 us i i 00 Enable 7 3 Switching the upper limit of cooling temperature Enable or disable automatic system Auto restart 40 restart after a power outage 01 Disable This setting can be raised the upper limit of the cooling temperature setting range This setting be used when connecting to the following controllers 00 Super low Wired remote controller 2 wire type Restrain the cold airflow with making Central remote controller Cool Air 43 Follow the the airflow lower when starting Touch panel controller Prevention 01 Setting on heating operation To correspond to System controller the remote the ventilation set to 01 Service tool controller Web monitoring tool 00 Start Sto Allow an external controller to start P O or stop the system or to perform an DIP switch setting 01 is performed from Set the DIP switch SET 4 SW3 referring to the Table C External an external controller all refrigerant control systems will be disabled If
3. Width across flats Pipe outside diam Width across flats of eter mm in Flare nut mm 6 35 1 4 17 pw 9 52 3 8 22 9 12 70 1 2 26 2 15 88 5 8 29 19 05 3 4 36 4 3 2 Bending pipes The pipes are shaped by your hands or pipe bender Be careful not to collapse them Do not bend the pipes in an angle more than 90 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 3 times N CAUTION To prevent breaking of the pipe avoid sharp bends If the pipe is bent repeatedly at the same place it will break 4 3 3 Pipe connection The gas and liquid pipes connections must be brazed Be sure to braze them before performing any wiring work or installing the drain pipe Outer diameter of pipe 12 70 mm Connection Pipe Liquid Connection Pipe Gas 22 22 mm Rear Panel Control Box Connection Pipe Liquid Maintenance Panel Safety drain pan 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 Flare nut mm in Tightening torque N m kgf cm 6 35 1 4 dia 16 to 18 160 to 180 9 52 3 8 dia 32 to 42 320 to 420 12 70 1 2 dia 49 to 61 490 to 610 15 88 5 8 dia 63 to 75 630 to 750
4. 19 05 3 4 dia 90 to 110 900 to 1 100 Z N WARNING Be sure to use wet cloth etc to protect the pipe rubber pipe heat insulation and the heat insulation of the safety drain pan as shown below Because these parts are extremely flammable they can cause a fire if they are not properly protected N CAUTION Hold the torque wrench at its grip keeping it in the right angle with the pipe in order to tighten the flare nut correctly The heat exchanger contains a thermistor Do not expose the thermistor to the flame RSS Protect these areas with wet cloth etc A SSS burning i Completely cover the pipe rubber and pipe heat insulation with wet cloth etc to prevent them from x Pipe heat insulation Pipe rubber RX Pipe rubber Pipe heat insulation P Tighten with 2 wrenches Holding wrench Flare nut Torque wrench Indoor unit pipe Body side Connection pipe Do not expose the unit control box rear panel maintenance panel etc and the inlet grille to the flame The exposure of these parts to the flame will adversely affect their appearance and functions or cause a fire NCAUTION If air or another type of refrigerant enters the refrigeration cycle the internal pressure in the refrigeration cycle
5. 9 0 a 90 7 Setting I example v WF w v 2 96 969 IU AD x 10 907 Setting aa example v 63 9694 REF AD x 10 IU AD x 1 907 amp 969 REF AD x 1 Refrigerant circuit address 1 Indoor unit address Rotary switch IU AD x 1 Factory setting 0 Rotary switch IU AD x 10 Factory setting 0 When connecting multiple indoor units to 1 refrigerant system set the address at IU AD SW as shown in the Table A 2 Refrigerant circuit address Rotary switch REF AD x 1 Factory setting 0 Rotary switch REF AD x 10 Factory setting 0 In the case of multiple refrigerant systems set REF AD SW as shown in the Table A for each refrigerant system Set to the same refrigerant circuit address as the outdoor unit If working in an environment where the wireless remote controller can be used the addresses can also be set using the remote controller If setting the addresses using the wireless remote controller set the indoor unit address and refrigerant circuit address to 00 For information on setting using the wireless remote controller En 13 Table A Rotary Switch Setting Do not set the indoor unit address IU AD SW at 64 to 99 It may result in failure 3 Remote controller address i 3 wire type Rotary switch RC AD SW Factory setting 0 When connecting multiple indoor units to 1 standard wired remote controller set the address at RC AD SW in sequence f
6. Front Level meter Side The side of the unit that holds the drain port should be slightly lower than the opposite side of the unit B The slant should allow from 0 to 20 mm of difference between and 3 3 4 Mounting the duct Follow the procedure in the following figure to install the ducts 1 251 mm 20 mm 370 mm 15 Inlet port flange 1 l 75 Outlet port flange 7 x 150 pitch 1 050 mm 25 mm 1 199 mm 350 mm 2 x 160 pitch 320 mm Spacing between flange and drain pan CAUTION Thicknesses of Annealed Copper Pipes R410A Pipe outside diameter mm in Thickness mm 3 Material 6 35 1 4 0 80 9 52 3 8 0 80 COPPER 1 12 70 1 2 0 80 JIS H3300 C1220T O 15 88 5 8 1 00 or equivalent 19 05 3 4 1 20 COPPER 2 22 22 7 8 1 00 JIS H3300 C1220T H or equivalent 1 Allowable tensile stress 233 N mm 2 Allowable tensile stress 261 N mm 3 Endurance pressure of the pipes 4 2MPa 4 2 Pipe requirement Z CAUTION Refer to the Installation Manual of the outdoor unit for description of the length of connecting pipe or for difference of its elevation To prevent people from touching the parts inside the unit be sure to install grilles on the inlet and outlet ports
7. The grilles must be designed in such a way that cannot be removed without tools Set the external static pressure between 100 and 300 Pa If an intake duct is installed take care not to damage the temperature sensor the temperature sensor is attached to the intake port flange Install the air inlet grille for air circulation The correct temperature can not be detected Duct Field supply T d iz Outlet Grille Inlet Grille Field supply Field supply Room 4 PIPE INSTALLATION N CAUTION 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 While welding the pipes be sure to blow dry nitrogen gas through them 4 1 Selecting the pipe material N CAUTION Do not use existing pipes from another refrigeration system or refrigerant 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 deformed or discolored portion especially on the interior sur
8. Do not touch terminals of parts and patterns implemented on PCB 6 1 Electrical requirement Voltage rating 230 V Operating range 198 to 264 V Select the power cable type and size in accordance with relevant local and national regulations Specifications for local wiring power cord and branch wiring are in compliance with local code Max wire length Set a length so that the voltage drop is less than 296 Increase the wire diameter when the wire length is long Refer to the table for the breaker specifications of each installation condition Perform the power crossover wiring within the range of the same refrigerant system When the crossover wiring is done make a connection for indoor units to satisfy conditions A and B below A Current breaker requirements Model MCA MFA ARXC72GATH 5 55A 20A ARXC90GATH 6 55A Before starting work check that power is not being supplied to the all units Use the included connection cables and power cables or ones specified by the manufacturer Improper connections insufficient insulation or exceeding the allowable current can cause electric shock or fire For wiring use the prescribed type of cables connect them securely making sure hat there are no external forces of the cables applied to the terminal connections Improperly connected or secured cables can cause serious accidents such as overheating the terminals electric s
9. 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 4 3 1 Flaring Use special flare tool exclusive for RA10A 1 Cutthe 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 or RB unit respectively onto the pipe and perform the flare processing with a flare tool Use the special R410A 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 Pipe outside diameter PIMENTA AN 0 mm in Flare tool for R410A Dimension Bo mm clutch type 6 35 1 4 9 1 9 52 3 8 13 2 12 70 1 2 0 to 0 5 16 6 15 88 5 8 19 7 19 05 3 4 24 0 When using conventional R22 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 measure the dimension A t is recommended that a R410A flaring tool is used En 4
10. be sure to make a branch outside the indoor unit using a pull box etc as shown on below example DC power supply 4 12 to 24V 1 1 M i Meg ccm S e When function setting is Emergency stop mode FE i resistance J i CNAO1 5 In the case of Edge input ic i Input signal Command ILI OFF ON Emergency stop i ve Ch1 of CNA01 or 2 al Load is lo H gi ERANA n ON OFF Normal ic gt 10 5 i ie HE 17 7 In the case of Pulse input dE connected unit m Connector Input signal Command ne Ch1 OFF gt ON Emergency stop E CNA01 or CNA02 Ch2 OFF ON Normal The last command has priority The indoor units within the same remote controller group operates in the same mode All indoor units of same refrigerant system stops when Emergency stop operates En 10 e When function setting is Forced stop mode In the case of Edge input Connector Input signal Command OFF ON Forced stop Ch1 of CNAO1 or CNA02 ON OFF Normal In the case of Pulse input Connector Input signal Command Ch1 OFF ON Forced stop CNAO1 or CNAO2 Ch2 OFF ON Normal When the forced stop is triggered indoor unit stops and Operation Stop operation by a remote controller is restricted When forced stop function is used
11. forced stop is set indoor unit stops by D led REF AD E i 02 Forced stop the input to the external input terminals x10 and Start Stop by a remote controller is restricted 00 All SET 3 Error report Change the target for reporting errors Er target 4T Display only on rors can either be reported in all locations 9 01 central remote or only the wired remote controller Fan set Follow the When set to 01 the fan stops when ina when 00 setting on the thermostat is OFF in cooling ON 49 the remote operation Connection of the wired re DIP switch SET4 Moos controller mote controller 2 wire type or 3 wire OFF 01 Stop type and switching its thermistor are SW SW SW SW necesa 1 2 3 4 i Table C DIP switch SET 4 SW3 Cooling temperature setting range OFF Factory setting Standard 18 to 30 C ON Extension 18 to 32 C NOTE Please do not make a standard setup and an extension setup intermingled in remote controller group En 14 Error indications OPERATION 8 TEST RUN Wired Remote FILTER Controller Error Error contents 8 1 Test run using Outdoor unit PCB Refer to the Installation Manual for the outdoor unit if the PCB for the outdoor unit is to be used for the test run 8 2 Test run using remote controller Refer to the Installation Manual for the remote controller to perform the test run using the remote controller When the air condi
12. unit address and refrigerant circuit address unit x T 7 v9 7 7 T 7 settings p d i i i i the power of the indoor unit ON before starting the setting Remote Due _ Turning the power to the indoor units initializes EEV so make sure the piping air controller A B D tight test and vacuuming have been conducted before turning on the power Also check again to make sure no wiring mistakes were made before turning on the Custom code setting for indoor unit power Set the DIP switch SET 3 SW1 SW2 referring to the Table B Function details Function Function Setting number Default Details number 9 00 Default Adjust the filter cleaning interval notifica Filter indica T tion If the notification is too early change tor interval 01 Longer to setting 01 If the notification is too late SET 3 02 Shorter change to setting 02 00 Enable Filter indica 01 Disable Enable or disable the filter indicator 13 Setting 02 is for use with a central remote tor action Display only on controller 02 central remote controller ON Dip switch SET 3 Cool air 00 Default Adjust the cool air trigger temperature To OFE temperature 30 01 Adjust 1 lower the trigger temperature use setting 01 To raise the trigger temperature use SW SW SW SW trigger 1 2 3 4 02 Adjust 2 soting 92 Table B 00 Default O lAdjust the heat air trigger temperature
13. will become abnormally high and prevent the unit from exerting its full performance N CAUTION Be sure to install the pipe against the port on the indoor unit and the outdoor unit correctly If the centering is improper the flare nut cannot tightened smoothly If the flare nut is forced to turn the threads will be damaged Apply nitrogen gas while brazing the pipes Nitrogen gas pressure 0 02 MPa pressure felt sufficiently on the back of your hand Pressure regulating valve Cap be Nitrogen gas Brazing area Do not remove the flare nut from the indoor unit pipe until immediately before connecting the connection pipe 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 If a pipe is brazed without applying nitrogen gas it will create an oxidation film This can degrade performance or damage the parts in the unit such as the compressor or valves En 5 Do not use flux to braze pipes If the flux is the chlorine type it will cause the pipes to corrode Furthermore if the flux contains fluoride it will adversely affect the refrigerant pipe system such as by degrading the refrigerant oil For brazing material use phosphor copper that does not require flux No gap 4 4 Installing heat insulation Install the coupler heat insulation after completing the re
14. your hand Perform wiring work in accordance with standards so that the air conditioner can be operated safely and positively Connect the connection cable firmly to the terminal board Imperfect installation may cause a fire If the supply cable is damaged it must be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard En 7 MCA Minimum Circuit Ampacity MFA Main Fuse Ampacity When the power crossover wiring is done make it so that the total of the MCA of the connected RB units and indoor units does not exceed the 15 A For RB unit MCA refer to the RB unit installation manual f the capacity of connected RB units and indoor units exceeds the upper limit either add breakers or use a breaker with a greater capacity B Earth leakage breaker requirements Maximum connectable indoor units Breaker capacit VES or indoor units RB units 30 mA 0 1 sec or less 44 or less 100 mA 0 1 sec or less 45 to 128 Heat pump type indoor units Heat recovery type indoor units and RB units f the total number of units connected to the breaker exceeds 44 either add a 30mA breaker or use breakers with a greater capacity 6 1 1 Cable specifications Follow the specifications below for the power supply transmission and remote controller cable Recommended cable size mm Cable type Remark Type245 IEC57 10 50 Hz 198
15. 03 c Select very low current use contacts usable at DC12V DC1mA or less d The wiring is different from Apply voltage terminals Be sufficiently careful when wiring When connected to Dry contact terminals of multiple indoor units with a connected unit insulate each indoor unit with relay etc as shown on below example CNAO1 Apply voltage terminal Indoor unit 1 External input Indoor unit can be Operation Stop Emergency stop or Forced stop by using indoor unit PCB CNAO1 or CNAO2 Operation Stop mode Emergency stop mode or Forced stop mode can be selected with function setting of indoor unit Indoor unit can be Forced thermostat off by using indoor unit PCB CNA03 or CNA04 A twisted pair cable 22 AWG should be used Maximum length of cable is 150 m Use an external input and output cable with appropriate external dimension depending on the number of cables to be installed The wire connection should be separate from the power cable line Indoor unit Power supply for relay Input select Use either one of these types of terminal according to the application Both types of terminals cannot be used simultaneously Indoor unit K1 K6 Relay Device for DC Current e Apply voltage terminal CNA01 CNA03 When a power supply must be provided at the input device you want to connect use the Apply voltage termin
16. L PART NO 9365748145 02 VRF system indoor unit Duct type Contents 1 SAFETY PRECAUMONS jisi eraan 1 EF endum 1 2 1 Precautions for using R410A refrigerant 2 2 Special tool for RA10A 2 3 Accessories 2 4 Optional parts 3 INSTALLATION WORK 3 1 Selecting an installation location 3 2 Installation dimension 3 3 Installation the unit 4 PIPE INSTALLATION 4 1 Selecting the pipe material 4 2 Pipe requirement 4 3 Flare connection pipe connection 4 4 Installing heat insulation c scssc 2scsesseessecsssnssasercoeaseacvonscadeceresdescnseasazacadeasenctansvenes 5 INSTALLING DRAIN PIPES eese 6 6 ELECTRICAL WIRING ga sissiscensncscnnosssessrerancsaancnszotereseansannsnsderniensntsnananaseianersatsaanensiatien 7 6 1 Electrical requirement 6 2 Wiring method 6 3 Unit wiring 6 4 Connection of wiring 6 5 Airflow changing 6 6 External input and external output Optional parts 6 7 Remote sensor Optional parts 6 8 IR receiver unit Optional parts seen Te SETTING m 7 1 Setting the address 7 2 Custom code setting 7 3 Switching the upper limit of cooling temperature 7 4 Function setting 8 TEST RUN 8 1 Test run using Outdoor unit PCB 8 2 Test run using remote c
17. Terminal block _ cable N WARNING When using solid core cables do not use the ring terminal If you use the solid core cables with the ring terminal the ring terminal s pressure bonding may malfunction and cause the cables to abnormally heat up B For strand wiring 1 Use ring terminals with insulating sleeves as shown in the figure below to connect to the terminal block 2 Securely clamp the ring terminals to the cables using an appropriate tool so that the cables do not come loose 3 Use the specified cables 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 screw driver that is too small otherwise the screw heads may be damaged and prevent the screws from being properly tightened 5 Do not tighten the terminal screws too much otherwise the screws may break 6 See the table for the terminal screw tightening torques 7 Please do not fix 2 power supply cables with 1 screw Ring terminal Strip 10 mm X S soe with special Screw with Cable GX washer special washer Ring terminal Ring 2 JA terminal Terminal block Cable N WARNING Use ring terminals and tighten the terminal screws to the specified torques otherwise abnormal overheating may be produced and possibly cause heavy damage in
18. _AMIRSTAGE ARXC72GATH ARXC90GATH R410A REFRIGERANT ir Cont M fef rigers aM RA THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL egulations id or service of this product FUJITSU GENERAL LIMITED A CAUTION Refer to Figura su nd Ten movan and local legislation regulations co instal e operation manuals before INSTALLATION MANUAL INDOOR UNIT Duct type For authorized service personnel only INSTALLATIONSANLEITUNG INNENGERAT Kanaltyp Nur fur autorisiertes Fachpersonal MANUEL D INSTALLATION APPAREIL INT RIEUR Type conduit Pour le personnel agr uniquement MANUAL DE INSTALACI N UNIDAD INTERIOR Tipo de ducto nicamente para personal de servicio autorizado MANUALE DI INSTALLAZIONE UNIT INTERNA tipo a condotto A uso esclusivo del personale tecnico autorizzato EFXEIPIAIO ETKATAZTAZHZ EXOTEPIKH MONAAA T rroc aywyo M vo EEOUDIOSOTNHEVO TEXVIK MANUAL DE INSTALA O UNIDADE INTERIOR Tipo de duto Apenas para t cnicos autorizados MONTAJ KILAVUZU ic UNITE Kanal tipi Yaln zca yetkili servis personeli i in PART NO 9365748145 02 S INSTALLATION MANUA
19. a ARXC90 Change setting PCB wire For 2 wire type Y1 Non poler Y1 Red ua Connect the remots Y2 Non poler Y2 White EJE Y3 Do not connect 1 Y3 Black 72 Set the DIP switch 2WIRE DIP switch syy4 Factory setting SWIRE SW1 1 If you connect the remote controller cable to the terminal Y3 2 wire type remote controller does not work N CAUTION When installing a screw on the terminal board do not cut the cable by overtightening the screw On the other hand an undertightened screw can cause faulty contact which will lead to a communication failure 3 Attach the control box cover En 9 Relay wire Fan motor wire Be sure to connect the wire with connector If connection is improper it will not operate properly e Dry contact terminal CNA02 CNA04 When a power supply is unnecessary at the input device you want to connect use the Dry contact terminal 2 CNAO4 6 6 External input and external output Optional parts Controller PCB OFF ON E SW3 SW4 LL L L B e o SW1 DIP switch SET 2 connected unit Dry contact terminal CNA04 CNA02 n Output terminal CNB01 CNA
20. able with cable clamp N CAUTION 6 5 Airflow changing When apply external static pressure less than 150Pa ARXC72 or 200Pa ARXC90 on the model please follow the methods below to connect relay wire 1 Disconnect the PCB wire connector from Fan motor wire connector 2 Connect the Fan motor wire with Relay wire 3 Connect the PCB wire with Relay wire External Static Pressure Relay wire Remark ARXC72 50 to 150 Pa Accessories ARXC90 100 PINK Standard to 200 Pa PURPLE static pressure BLUE Layout of circuit board High Static Pressure mode 150 to 300 Pa ARXC72 200 to 300 Pa ARXC90 Factory setting When switching the DIP switch SW1 be sure to turn off the power supply to the indoor unit Otherwise the PC board of the indoor unit may be damaged Cable tie Medium Accessories Remote controller cable Y1 Red L N Power supply cable Cable clamp For 3 wire type PCB wire WS o Fan motor wire Standard Static Pressure mode 50 to 150 Pa ARXC72 100 to 200 P
21. al CNAO1 CNAO3 DC power supply 12 to 24V Operation behavior NOTE When connected to multiple indoor units directly it will cause breakdown e Input signal type Edge f l The input signal type can be selected It is switched by DIP switch on the indoor unit PCB Input i resistance i DIP switch Set 2 SW2 Input signal type Pulse EJ E OFF Factory setting Edge The width of pulse ON Pulse must be longer than 200msec e When function setting is Operation Stop mode amp In the case of Edge input Connector Input signal Command gt ee ere es ee E 2 OFF ON Operation connected unit Ch1 of CNAO1 or CNA02 ON OFF Stop 1 Make the power supply DC12 to 24V Select a power supply capacity with an ample surplus for the connected load Do not impress voltage exceeding 24V across pins 1 2 and 1 3 In the case of Pulse input a The allowable current is DC 5mA to 10mA Recommended DC5mA Connector Input signal Command Provide a load resistance such that the current becomes DC10mA or less Select very low current use contacts usable at DC12V DC1mA or less Chi OFF gt ON Operation b The polarity is for pin 1 and for pin 2 and 3 Connect correctly CNAO1 or CNA02 Ch2 OFF gt ON Stop When connected to Apply voltage terminals of multiple indoor units with a connected unit
22. ces a toxic gas Installation work must be performed in accordance with national wiring standards by authorized personnel only Except for EMERGENCY never turn off main as well as sub breaker of the indoor units during operation It will cause compressor failure as well as water leakage First stop the indoor unit by operating the control unit converter or external input device and then cut the breaker Make sure to operate through the control unit converter or external input device When the breaker is designed locate it at a place where the users cannot start and This mark indicates procedures which if improperly performed AN CAUTION might possibly result in personal harm to the user or damage to property Read carefully all security information before use or install the air conditioner Do not attempt to install the air conditioner or a part of the air conditioner by yourself This unit must be installed by qualified personnel with a capacity certificate for handling refrigerant fluids Refer to regulation and laws in use on installation place The installation must be carried out in compliance with regulations in force in the place of installation and the installation instructions of the manufacturer This unit is part of a set constituting an air conditioner It must not be installed alone or with non authorized by the manufacturer Always use a separate power supply line protected by a ci
23. face 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 R22 refrigerant it is necessary to choose adequate materials Thicknesses of copper pipes used with R410A are as shown in the table Never use copper pipes thinner than those indicated in the table even if they are available on the market Use pipe with water resistant heat insulation N CAUTION 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 location of the refrigerant piping is expected to exceed 70 install heat insulation around the refrigerant piping If the expected humidity level is 70 to 80 use heat insulation that is 15 mm or thicker and if the expected humidity exceeds 80 96 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 N WARNING Tighten the flare nuts with a torque wrench using the specified tightening method
24. frigerant leak check for details refer to the Installation Manual for the outdoor unit There should be no gaps between the insulation and the product SC 222 Cable tie Large Accessories Coupler heat insulation Large Accessories Coupler heat insulation Small Cable tie Large Accessories 5 IN LLING DRAIN PIPES Use general hard polyvinyl chloride pipe VP25 and connect it with adhesive polyvinyl chloride so that there is no leakage The position of the installed drain pipe should have a downward gradient of 1 100 or more To prevent the pipe from freezing use a heat insulation material as needed Position of drain piping 200 mm A L 427 mm oO 5 Y Safety drain port 40 mm 403 mm Drain port O D Drain pipe For main drain port For safety drain port 32 mm VP25 This product has drain ports in 2 locations Follow the procedure in the figure to connec drain hose and drain pipes to each of them INSTALL THE DRAIN HOSE TO THE MAIN AND SAFETY DRAIN PORT Working procedure 1 Install the attached drain hose to the main and safety drain port of the body Install the hose band from the top of the hose within the graphic display area Secure firmly with the hose band Use vinyl adhesive agent to glue the drain pipin
25. g PVC pipe VP25 which is prepared on site or piping socket Apply color adhesive agent evenly until the gauge line and seal Check the drainage Install the heat insulation Use the attached heat insulation to insulate the drain port and band parts of the body Accessories Drain hose Hose band Drain hose For main drain port Large Large insulation Forsafetv diainpor Drain hose Hose band Drain hose y Small Small insulation Drain pan Hard PVC sid Drain pan Hose opening view Ensure there is no space Hose Band Accessories Soft PVC side Drain hose Accessories Applying area of e adhesive 122 4 mm less Wrap the Drain hose insulation around the drain hose connection Joint pipe Field supply Drain pipe VP25 Field supply Drain hose insulation Accessories Drain hose 100mm Wind the attached heat insulation around the hose band Make sure the alignment is on top INSTALL THE DRAIN PIPE 0 Main drain On the main drain provide 1 trap near the indoor unit Unit H1 100 mm Approx H2 50 to 100 mm Drain pipe En 6 2 Safety drain There is no need to provide a trap for the safety drain If the safety drain is connected to the main drain make the connection below the main trap Unit Main Drain pipe Safety Make sure that drain pipe is installed without rises Do not perf
26. hock or fire Do not modify the power cables use extension cables or use any branches in the wiring Improper connections insufficient insulation or exceeding the allowable current can cause electric shock or fire Match the terminal board numbers and connection cable colors with those of the outdoor unit or RB unit Erroneous wiring may cause burning of the electric parts Securely connect the connection cables to the terminal board 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 discharge 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 Install sleeves into any holes made in the walls for wiring Otherwise a short circuit could result Install an earth leakage breaker In addition install the earth leakage breaker so that the entire AC main power supply is cut off at the same time Otherwise electric shock or fire could result Always connect the earth ground cable Improper earthing grounding work can cause electric shocks Install the remote controller cables so as not to be direct touched with
27. mp red code sex Monitor A RN Error contents TIMER lamp orange Touch the Error Information Error Code 14 15 Y Remote controller communication error 2 digit numbers are corresponding to the error code in the preceding table Network communication For more information refer to the installation manual of the remote controller error For details on marking the ERROR CODES please refer to the Manual of IR Receiver Unit or Wired Remote Controller Peripheral unit communication error Indoor unit address setting error Connection unit number error in wired remote controller system En 15
28. ntains suspended carbon fibers or Relay wire For switching static pressure TES E a flammable dust or volatile inflammables such as paint thinner or gasoline If gas 1 leaks and settles around the unit it can cause a fire Area where animals may urinate on the unit or ammonia may be generated Do not use the unit for special purposes such as storing food raising animals Special nut A For suspending the indoor unit from growing plants or preserving precision devices or art objects Large flange 1 ceiling It can degrade the quality of the preserved or stored objects Do not install where there is the danger of combustible gas leakage 7 Do not install the unit near a source of heat steam or flammable gas Special nut B Small flange Install the unit where drainage does not cause any trouble v 4 4 NL Install the indoor unit power supply cable transmission cable and remote controller cable at least 1 m away from a television or radio receivers The purpose of this is to Washer prevent TV reception interference or radio noise Even if they are installed more than 1 m apart you could still receive noise under some signal conditions 8 If children under 10 years old may approach the unit take preventive measures so that they cannot reach the unit Drain hose For installing drain pipe Take precautions to prevent the unit from falling Large For main drain port ST 1 1 Install the indoor unit on a place having a sufficient st
29. ontroller eerte 15 9 CHECK LIST o sisi tek ibid qiue n ie cr D iri hex ia iudi 15 10 ERROR CODES sescsisisssscsiscsiennsiniaastninasiunananinasansiansunaatsimantintniunasiniaentatntsienananinaninsid 15 1 SAFETY PRECAUTIONS Be sure to read this Manual thoroughly before installation The warnings and precautions indicated in this Manual contain important information per taining to your safety Be sure to observe them Hand this Manual together with the Operating Manual to the customer Request the cus tomer to keep them on hand for future use such as for relocating or repairing the unit This mark indicates procedures which if improperly A WARNING performed might lead to the death or serious injury of the user Request your dealer or a professional installer to install the indoor unit in accordance with this Installation Manual An improperly installed unit can cause serious accidents such as water leakage electric shock or fire If the indoor unit is installed in disregard of the instructions in the Installation Manual it will void the manufacturer s warranty Do not turn ON the power until all work has been completed Turning ON the power before the work is completed can cause serious accidents such as electric shock or fire If refrigerant leaks while work is being carried out ventilate the area If the refrigerant comes in contact with a flame it produ
30. oor unit water drain abnormal Outdoor unit miscellaneous error RB unit error s the connection cable the specified thickness Are the inlets and outlets ree of any obstacles Does start and stop air condi ioner operation by remote con roller or external device After installation is completed has he proper operation and handling i been explained to the user d 10 ERROR CODES If you use a wired type remote controller error codes will appear on the remote controller display If you use a wireless remote controller the lamp on the photodetector unit will output error codes by way of blinking patterns See the lamp blinking patterns and error codes in the table below No operation heat or burn damage Number of flashing No cooling No heating Wired Remote Controller Display UTY RNKY UTY RNKG UTY RNKYT 3 wire type No operation Error code SU MO TU WE FR URY RNRY UTY RNRG 2 wire type Touch the Next Page or previous page A Error icon 1 pre to switch to other indoor unit information fa Fri 10 00AM Status Page 1 3 Error Information Page v5 Set Ter Fan Air Flow Direction Address Error Code 1415 Touch the Status Mode E vr pox Economy Anti Freeze HZ 3 Error indications OPERATION lamp green Wired Remote FILTER Controller Error la
31. or vacuum suction of 100 7 kPa 5 Torr 755 mmHg Gas leakage detector Special gas leakage detector for R410A refrigerant 2 3 Accessories Z WARNING 2 4 Optional parts The following options are available Description Model No Application For installation purposes be sure to use the parts supplied by the manufacturer or External output wire 9379529013 For output port other prescribed parts The use of non prescribed parts can cause serious accidents i 7 P i B P External input wire D 9368779016 controPinput port such as the unit falling water leakage electric shock or fire Apply voltage terminal For control input port The following installation parts are furnished Use them as required External input wire F 9368779023 Dry contact terminal Keep the Installation Manual in a safe place and do not discard any other accessories External input wire B 9368778002 port until the installation work has been completed F e d 7 tat off port External input wire E 9368778019 See O MOSA eine Dry contact terminal Name and Shape Q ty Application temperature Remote sensor UTY XSZX Operating Manual sensor IR receiver unit UTB WC For the wireless remote 1 controller When installing please refer
32. orm air bleeding PROHIBITED Rise Air bleeding N CAUTION Be sure to properly insulate the drain pipes Make sure the drain water is properly drained 6 ELECTRICAL WIRING Z WARNING 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 performed electrical work can cause serious accidents such as electric shock or fire N CAUTION Earth Ground the unit Do not connect the earth ground cable to a gas pipe water pipe lightning rod or a telephone earth ground cable Improper earthing grounding may cause electric shock Do not connect power supply cables to the transmission or remote controller terminals as this will damage the product Never bundle the power supply cable and transmission cable remote controller cable together Separate these cable by 50 mm or more Bundling these cables together will cause miss operation or breakdown When handling PCB static electricity charged in the body may cause malfunction of the PCB Follow the cautions below Establish an earth ground for the indoor and outdoor units and peripheral devices Cut power breaker off Touch metal part of the indoor unit for more than 10 seconds to discharge static electricity charged in the body
33. ower supply Kp Spe a Pull box 0 Breaker Pull box Crossover wiring of power supply Indoor unit Indoor unit L z Power supply Earth Ground the remote controller if it has an earth ground wire Connect the earth ground wire of the remote controller to the earth ground terminal of transmission Before attaching the cable to terminal block 6 3 1 Power supply cable Adjust the length of power supply cable to avoid excessive tension with referring figure below Power supply cable 25 mm Earth Ground cable 35 mm A For solid core wiring 1 To connect the electrical terminal follow the below diagram and connect after looping it around the end of the cable 2 Use the specified cables connect them securely and fasten them so that there is no stress placed on the terminals 3 Use an appropriate screwdriver to tighten the terminal screws Do not use a screwdriver that is too small otherwise the screw heads may be damaged and prevent the screws from being properly tightened 4 Do not tighten the terminal screws too much otherwise the screws may break 5 See the table for the terminal screw tightening torques 6 Please do not fix 2 power supply cables with 1 screw Strip 25 mm Loop screw with s special washer crew with m special washer 2 Cable end Loop Cable end L z zz Loop
34. own below Do not place any wiring or illumination in this space INSTALLATION DIMENSIONS 2 4 900 900 3 3 Installation the unit Z WARNING Install the air conditioner in a location which can withstand a load of at least 5 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 N CAUTION Confirm the directions of the air intake and outlet before installing the unit The unit takes in air from the evaporator side and expels it from the fan side 3 3 1 Conveyance method Leave the packing materials on until the unit is at the installation site Remove the packing hardware and dispose of it En 3 3 3 2 Installing hangers Suspend the indoor unit by referring to the following figures 1 550 1 410 mm 450 mm 68 mm Inlet port 2 m du 1 EIE EIE oO in 1 Outlet port Special nut A Accessories Hanging bolt M10 Field supply Washer Accessories Special nut B Accessories N CAUTION Fasten the unit securely with special nuts A and B 3 3 3 Leveling Use the procedure in the following figure to adjust the levelness Level meter
35. r room temperature correction When a remote sensor is connected set the function setting of indoor unit as indicated below Function Number 30 Set the Setting Number to 00 Default Function Number 31 Set the Setting Number to 02 Refer to 7 4 Function setting for details about Function Number and Setting Number En 12 7 FIELD SETTING There are 3 methods for address setting by FIELD SETTING as follows Set by either of the methods Each setting method is described 1 to 3 below 1 IU AD REF AD SW settings This section 7 1 Setting the address 2 Remote controller settings Refer to the wired or wireless remote controller manual for detailed setting information Set IU AD REF AD SW to 0 Refer to the outdoor unit manual for detailed setting information Set IU AD REF AD SW to 0 3 Automatic address settings N CAUTION Be sure to turn OFF the power before performing the field setting 7 1 Setting the address Manual address setting method If the receiver unit is attached the indoor unit address and the refrigerant circuit address can also be set up through the wireless remote controller N CAUTION Use an insulated screwdriver to set the DIP switches Rotary switch Example 0 907 g otary switch Example 0 96 REF AD lo eel L EL NE range Indoor unit address Type of switch
36. rcuit breaker operating on all wires with a distance between contact of 3mm for this unit The unit must be correctly earthed grounded and the supply line must be equipped with a differential breaker in order to protect the persons atmosphere The units are not explosion proof and therefore should not be installed in explosive Never touch electrical components immediately after the power supply has been turned off Electric shock may occur After turning off the power always wait 5 minutes before touching electrical components personnel to repairs This unit contains no user serviceable parts Always consult authorized service the unit When moving consult authorized service personnel for disconnection and installation of 2 ABOUT THE UNIT 2 1 Precautions for using R410A refrigerant Z WARNING 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 oxygen starvation 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 Do not touch refrigerant that has leaked from the refrigerant pipe connections or other area Touching the refrigerant directly can cause frostbite p
37. re with connecting wire with solder IMPORTANT Be sure to insulate the connection between the wires Option parts Field supply External input output wire s Solder and insulate the connected parts Connection terminals and wiring arrangement In following figure all the possible connectors are connected for description In actual installation you cannot connect all the connectors at once Controller PCB roomy Yo o Cable tie Field supply 6 7 Remote sensor Optional parts 6 8 IR receiver unit Optional parts Forthe installation method please refer to the INSTALLATION MANUAL of remote For the installation method please refer to the INSTALLATION MANUAL of IR receiver sensor unit Connection methods Connection methods Connection terminals Connection terminals Controller PCB Controller PCB IR receiver unit terminal CN18 Remote sensor terminal CN8
38. rength so that it withstands E3 923 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 Drain hose For installing drain pipe 3 Leave the space required to service the air conditioner Small For safety drain port 4 Install the unit where connection to the outdoor unit or RB unit is easy 20 1 5 Install the unit where the connection pipe can be easily installed cS 6 Install the unit where the drain pipe can be easily installed 7 Install the unit where noise and vibrations are not amplified Hose Band For installing drain hose Large 8 Take servicing etc into consideration and leave the spaces Also install the unit Large where the filter can be removed 1 9 Do not install the unit where it will be exposed to direct sunlight Hose Band For installing drain hose Small Small 1 Drain hose insulation For installing drain hose 2 2 3 2 Installation dimension Provide a service hole for inspection purposes as shown below Do not place any wiring or illumination in the service space as they will impede service INSTALLATION DIMENSIONS 1 KXXXX Service hole VZ7774 Service space more 890 mm or more 30 mm or more If the service space shown in Fig INSTALLATION DIMENSIONS 1 is unavailable provide a 900 mm service space at either the left or right side of the unit as sh
39. roduces a toxic gas 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 2 2 Special tool for R410A Z WARNING fire To install a unit that uses R410A refrigerant use dedicated tools and piping materials that have been manufactured 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 Tool name Changes Gauge manifold The pressure in the refrigerant system is extremely high and cannot be measured with a conventional gauge To prevent erroneous mixing of other refrigerants the diameter of each port has been changed It is recommended to use a gauge manifold with a high pressure display range of 0 1 to 5 3 MPa and a low pressure display range of 0 1 to 3 8 MPa Charging hose 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 stop in the daily work En 1 Vacuum pump 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 f
40. rom 0 __ Seting Setting range Type of switch Setting example Remote controller address 0 If 4 indoor units are connected Indoor unit ndoor unit Indoor unit Indoor unit RC AD SW RC AD SW RC AD SW RC AD SW 0 1 2 3 Remote controller RCADSW o Address Rc sw s 9 A 8 Address 8 9 ii 2 wire type Rotary switch RC AD SW Factory setting 0 Since the remote controller address settings are automatically configured you do not need to configure them If configuring manually it is necessary to configure both the indoor unit and the remote controller For details please refer to the remote controller manual Oo 7 2 Custom code setting 7 4 Function setting Selecting the custom code prevents the indoor unit mix up FUNCTION SETTING can be performed with the wired or wireless remote controller Up to 4 codes can be set The remote controller is optional equipment Perform the setting for both the indoor unit and the remote controller M Refer to the wired or wireless remote controller manual for detailed setting information Code change Set IU AD REF AD SW to 0 Indoor RT A B D Refer to 7 1 Setting the address for indoor
41. side the unit Tightening torque 1 2 to 1 8 12 to 18 kgf cm screw Power supply L N GND 6 3 2 Transmission and Remote controller cable Transmission cable 25 mm Shielded cable no film L _ 35mm Remote controller cable For 3 wire type For 2 wire type H 25 mm N 25 mm SS 0000 c Connect remote controller and transmission cables as shown in Fig B When the 2 cables are attached Fig B GOOD PROHIBITED Different diameter Connect to 1 side Z WARNING Tighten the terminal screws to the specified torques otherwise abnormal overheating may be produced and possibly cause heavy damage inside the unit Tightening torque M3 screw Transmission X1 X2 Remote controller Y1 Y2 Y3 0 5 to 0 6 5 to 6 kgf cm N CAUTION To peel the film from the lead cable use a dedicated tool that will not damage the conductor cable When installing a screw on the terminal block do not cut the cable by overtightening the screw On the other hand an undertightened screw can cause faulty contact which will lead to a communication failure En 8 6 4 Connection of wiring 1 Remove the control box cover and install each connection cable Loosen the screws 2 locations 2 After wiring is complete clamp the remote controller cable connection cable and power supply c
42. tioner is being test run the OPERATION and TIMER flash slowly at the same time For details please refer to the Manual of IR Receiver Unit or Wired Remote Controller 9 CHECK LIST Pay special attention to the check items below when installing the indoor unit s After installation is complete be sure to check the following check items again Check Check items box If not performed correctly Has the indoor unit been in stalled correctly Vibration noise indoor unit may drop Has there been a check for gas leaks refrigerant pipes No cooling No heating Has heat insulation work been completed Water leakage Does water drain eas ily from the indoor units Water leakage s the voltage of the power source he same as that indicated on he label on the indoor unit No operation heat or burn damage Are the wires and pipes all con nected completely No operation heat or burn damage s the indoor unit earthed grounded Short circuit TIMER lamp orange lamp red code lamp green 0 55 0 55 OFF lt gt 0 15 0 15 OFF Display mode ndoor unit power supply abnormal ndoor unit main PCB error ndoor uni communication circuit wired remote controller error ndoor unit room temp thermistor error ndoor unit heat ex temp thermistor error ndoor unit fan motor 1 error ndoor unit coil expansion valve error nd
43. to 264 V Power supply cable 25 or equivalent 2 Cable earth ground 22 AWG LEVEL 4 NEMA Transmission cable 0 33 LONWORKS uu non polar 2 core twisted pair patible cable solid core diameter 0 65 mm Remote controller cable 0 33 to 1 25 Sheathed PVC cable Non polar 2 core 2 wire type Remote controller cable 0 33 Sheathed PVC cable Polar 3 core 3 wire type Use shielded cable in accordance with local rules for remote controller cable 6 2 Wiring method EXAMPLE Outdoor unit or RB unit 1 Transmission A femen Indoor unit M Indoor unit Indoor unit Ni BE 12 13 Remote Or Sa vr pa v3 control 5 2 ower supply a k di 3 LIN 3 N s 3 Breaker f Breaker Breaker pid A LIN LIN LIN Power supply Remote controller Remote controller Remote Master Slave controller 1 When connecting to the Heat Recovery System refer to the installation manual of the RB unit 2 Earth Ground the remote controller if it has an earth ground cable 3 When connecting the 2 wire type remote controller Y3 is not used Power supply Power supply Indoor unit P
44. to the installation manual of each optional part Installation Manual This book 3 INS LLATION WORK Correct initial installation location is important because it is difficult to move unit after it is installed Cable tie Large For fixing the connection pipe Large DEM PERIERE 3 1 Selecting an installation location D 4 Decide the mounting position together with the customer as follows ties Z WARNING Cable tie Medium For transmission and remote Select installation locations that can properly support the weight of the indoor unit controller cable binding Install the units securely so that they do not topple or fall 2 N CAUTION Coupler heat insulation For indoor side pipe joint Small Do not install the indoor unit in the following areas Small Area with high salt content such as at the seaside It will deteriorate metal parts 1 causing the parts to fail or the unit to leak water Area filled with mineral oil or containing a large amount of splashed oil or steam such as a kitchen It will deteriorate plastic parts causing the parts to fail or the unit Coupler heat insulation For indoor side pipe joint Large to leak water Large ST 4 Area that generates substances that adversely affect the equipment such as sulfuric SE gas chlorine gas acid or alkali It will cause the copper pipes and brazed joints to corrode which can cause refrigerant leakage Area that can cause combustible gas to leak co
45. with forming a remote controller group connect the same equipment to each indoor unit within the group Selection method of functions Operation Stop mode or Emergency stop mode Forced stop mode can be selected with function setting of indoor unit e Forced thermostat off function Edge input only Connector Input signal Command OFF ON Thermostat off Ch3 of or CNA04 ON OFF Normal 2 External output A twisted pair cable 22AWG should be used Maximum length of cable is 25m Use an external input and output cable with appropriate external dimension depending on the number of cables to be installed Output voltage Hi DC12V 2V Lo OV Permissible current 50mA Output select e When indicator etc are connected directly connected unit e When connecting with unit equipped with a power supply connected unit Relay Field supply Operation behavior Connector Output voltage Status External output1 ov Stop Fee DC 12V Operation External output2 ov Normal CNBO1 Pins 1 3 DC 12V Error External output3 ov Indoor unit fan stop Pine 1 4 DC 12V Indoor unit fan operation En 11 3 Connection methods Wire modification Remove insulation from wire attached to wire kit connector Remove insulation from field supplied cable Use crimp type insulated butt connector to join field cable and wire kit wire Connect the wi
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