INSTALLATION MANUAL
Contents
1. terminations will not receive external stress Use the specified wire type and connect it securely Observe the notes mentioned below when wiring to the power supply terminal board Precautions to be taken for power supply wiring Round crimp style Use a round crimp style terminal for connection to the power supply terminal board terminal In case it cannot be used due to unavoidable reasons be sure to observe the follow Stranded Wire ing instruction e Place the round crimp style terminals on the wires up to the covered part and secure in place N CAUTION When connecting the connection wires to the terminal board using a single core wire be sure to perform curling Problems with the work may cause heat and fires ele Excessive strip length may cause electrical shock or leakage Strip wire end to this point Stripping wire at terminal block 3 Pull the wire and make sure that it does not disconnect Then fix the wire in place with a wire stop English 10 Test Run and Final Check 1 Trial operation and testing 1 1 Measure the supply voltage and make sure that it falls in the specified range 1 2 Trial operation should be carried o2. eJepue Jeau jo jo ep tQ SuononJjsul sou e jueuieuuojuoo sesijnn juelos sinb juejne 1nod s pyewou s jueuunoop sjane no s euuou e JUOS 60 uapiem ue amp unsiemuy ais gep Jejun ueuoeidsuuenuotudsiue jepo JUELNYOPWON epo ZO Suononusul Ino eouepioooe eje Jeu pepioud sjueuinoop eameuuou 10 5 eur Ajuuojuoo ur eie SLA 3SEDOXHV BLAE3SCOXHV HLAEJSEDOXH HLAE3SCOXH SLAZOSESXUV HLACOSCSXUV BHLA2O07SXHV SLACOSES H HLACOSCSPIH GLAZOOZSMY BLACOSESXH HLACOSCSXH HLAZO0CSXH aljesejoap ejseaoe eJojoJ 95 Joe op eo eopundsei eudoud ed eiepoop s ezsfeiuiu zofyop uougy moiojezKjeuiry ez osoujerzpeiwodpo euzoej Buse eu efniejyep Ga Nizoyjeuo JeZOe IAU e euya jeui sezepueieqeuii e nuejef ueqejepn eBessojejej salla CHD 9 enefzi e o es aloy eu efepeun ewy ns ep pod efnfjvefzi am efnueyzA Juage youd es 2 eoezneui ez ysoupgAodpo guid efnsejuoud zx pL
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5. If the flare nut is tightened too hard the flare nut may crack after a long time and cause refrigerant leakage Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals Small animals making contact with electrical parts can cause malfunctions smoke or fire Please instruct the customer to keep the area around the unit clean 1 English Accessories Accessories supplied with the outdoor unit A Installation Manual 1 C Refrigerant charge label B Drain plug Heat pump Models Contains fluorinated greenhouse gases covered LL by the Kyoto Protocol 1 R410A kg 1 A kg There is on the bottom packing case SS Rc Precautions for Selecting the Location 1 Choose a place solid enough to bear the weight and vibration of the unit where the operation noise will not be amplified 2 Choose a location where the hot air discharged from the unit or the operation noise will not cause a nuisance to the neighbors of the user 3 Avoid places near a bedroom and the like so that the operation noise will cause no trouble 4 There must be sufficient spaces for carrying the unit into and out of the site 5 There must be sufficient space for air passage and no obstructions around the air inlet and the air outlet 6 The site must be free fr
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7. D 12 15mm 1 0 8 10mm Thickness 0 8mm Thickness 10mm Min 3 Use separate thermal insulation pipes for gas and liquid refrigerant pipes for charging Wall the flare mouth with tape to keep dirt or water out Inter unit wiring Gas pipe Liquid pipe Gas pipe insulation Liquid pipe insulation Finishing tape Drain hose English Standby Electricity Saving The standby electricity saving function turns OFF power supply to the outdoor unit and sets the indoor unit into standby electricity saving mode thus educing the power consumption of the air conditioner The standby electricity saving function works on the following indoor units FTXS20G2V1B ATXS20G2V1B FTXS25G2V1B ATXS25G2V1B FTXS35G2V1B ATXS35G2V1B N CAUTION The standby electricity saving function cannot be used for models other than the specified ones B Procedure for turning ON standby electricity saving function 1 Check that the main power supply is turned OFF Turn it OFF if has not been turned OFF 8 AAAA 2 Remove the stop valve cover 3 Disconnect t
8. completely close its high pressure valve Hi High pressure valve subsequently requires no operation 3 Do vacuum pumping and make sure that the compound pressure gauge reads 0 1MPa 76cmHg 1 4 4 Close gauge manifold s low pressure valve Lo and stop vacuum pump Keep this state for a few minutes to make sure that the compound pressure gauge pointer does not swing back 2 4 5 Remove caps from liquid stop valve and gas stop valve 4 6 Turn the liquid stop valve s rod 90 degrees counterclockwise with a hexagonal wrench to open valve Close it after 5 seconds and check for gas leakage Using soapy water check for gas leakage from indoor unit s flare and outdoor unit s flare and valve rods After the check is complete wipe all soapy water off 4 7 Disconnect charging hose from gas stop valve s service port then fully open liquid and gas stop valves Do not attempt to turn valve rod beyond its stop 4 8 Tighten valve caps and service port caps for the liquid and gas stop valves with a torque wrench at the specified torques 1 Pipe length vs vacuum pump run time Pipe length Up to 15 metres More than 15 metres Run time Not less than 10 min Not less than 15 min 2 If the compound pressure gauge pointer swings back refrigerant may have water content or a loose pipe joint may exists Check all pipe j
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10. terminal block Doing so may cause electric shock or fire 3 Be sure to install an earth leak detector One that can handle higher harmonics This unit uses an inverter which means that it must be used an earth leak detector capable handling harmonics in order to prevent malfunctioning of the earth leak detector itself 4 Use an all pole disconnection type breaker with at least 3mm between the contact point gaps Do not turn ON the safety breaker until all work is completed 1 Strip the insulation from the wire 20mm Firmly fix the wires with 2 Connect the connection wires between the eee indoor and outdoor units so that the terminal nen wire engin ene 10T numbers match Tighten the terminal screws securely We recommend a flathead screw driver be used to tighten the screws The screws are packed with the terminal board Use 2 0mm diameter wires Safety Earth leakage Power supply breaker circuit breaker 50 2 220 240V 1 Indoor unit Firmly fix the wires with HOSRN Safety breaker the terminal screws Earth RX K S ARXS 10 RXG ARXG 16A ES Power supply terminal block Shape wires so that the stop valve cover fit securely E P Firmly secure wire retainer so wire c c DOO DKA
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12. 10 reejye GN pO uome ejueseid ej sosiA euuonpuoo anb eupiqesuodse ajnas es snos ejejoop Ca 0 39 Jwwuysaq GunepJ3 eserp eip sn ep gep auras ne Ca 20 UONE SIU oj sjepou y Karqrsuodsei ejos S Japun 69 L0 saiH LSnawi NDIIVG 9NIuV DIB3ASLISLIWHO3NOO 39 3 8191381032 VE BMllVdVLDI3t 39 NOOISLVYVTHAGSNAVLSVA 39 ILSONQV DIS VAVEZI 39 SNIH3 DId3S39 13014340 39 W48121381002 0 34H3lf8BVE 39 QV GINYOINOD 3d OVOVEW 1230 39 3HXU dOWINAX HZUVHY 39 VLINYOINOO 1G SNOIZVYVIHOI 39 avaiiiado3NO2 30 NOIOVHV 1230 39 3LIINHO3NOO 3Q NOIL V8 V 1040 39 9Nnav THYSSLY LINKOINOM 39 ALIINBO3NO2 30 NOIL VU 1040 39 AQOHZ 3IN3SV IHAA 39 vriovav Dad svalisTialv 39 5311 39 I9S0NQ09Z Vr2V3 V DI3Q 39 1VZOXLV AN 93801313393MW 39 ILSONSGVTMSN O WAVEZI 39 3Q0HS O IN3SY IHOMd 30 VLSAGNNSIVANWNAGHA SNLIOWTI 39 YVASINVS WO 9 30 Safety Precautions Read these Safety Precautions carefully to ensure correct installation This manual classifies the precautions into WARNING and CAUTION Be sure to follow all the precautions below they are all important for ensuring safety A WARNING Failure to follow any of WA
13. DAIKIN INSTALLATION MANUAL R410A Split Series INVERTER DA SUI SERES English ier Manuel d installation F S rie split RA10A 21815 RADA Spitsysteer Nederlands Models ace RXS20G2V1B RKS20G2V1B RXS25G2V1B RKS25G2V1B PE Italiano RXS35G2V4B RKS35G2V1B osi Noemi AIEO VIR Manual de ANS Portugues ARXS35G2V1B ARXG25E3V1B Montaj kilavuzlari ARXG35E3V1B R410A Split serisi Kee ueder ZE8 0ES exeso IUSIN PeZexeN z L v z S31H LSnONI NDIIVO An tuupuepreGep yese o ide 61 42 LS6tr L60WS OuY 9ELp1 pod suapnsod aupep e GLO AOL UIEA aloynuiguoy eyoruupa aroqns A euanouejs af oye LS60 LEQWS OUN SELPL SIEXY HES hjuunjo YAY 8196 eurseyyrues 767 69 3 O 9eLp 9 191515 SC x CHWEUZOd eualde ureuinuig wefeayzod yay Isoisiiqe s0 32 w eg elosuenumyop gfeysuya sietou ey seuzeld Z 1661 169 W3 OHY 9c 2p eunfoufzed vy eumd 6102 L ureg 10 sofoynrsuoyefeuuupe ey pomudey eqejsed zz 196 L6QWA OUY 9ELp VIN LO G0 BYOSHMHXAL LE LLY 8 OHAXOLTEE OLLY 861 169 N3 0 UY 961p 9 ipeeyurues Yenejsen vay papiy syeau ef c 10 42 p uireq siuoorsjejueuiop sesitiuue pnyepigu uo nBeu
14. H LEGEUOUEN 80 h ndu WLHAWANOW WAGE widet Hel eH 18191981099 0 ejeypueunf eeu asyejeynsey piau my ejstaj 5 a siwBel sesnaejseA uo 02 WISeU 2 npes A ofef qeJodn es ep pod anewsou jwiGnup ipsepuejs z Upes 6 ejunijonujsui no ejeyruuojuoo ejeyeoyeuun jnuoyeuun ejeyruuojuoo uj uns iue oynJjsul wAzseu 2 es uem zn ez pod uouffoezyeuuou wojueunyop iBou w Pferujeds yefjeuzseu juuezs seJioje yeyoze eu qe 6e yeu yo KueAqezs Iqqeje ze 9 u 9jezijnn By es eajsooe eo no e uyeuuou s jueunoop nes s piepuejs 1910 epiese ewy nBnpjo 16 uruurpiig nq ejezn xeujjo epunBninjwruos ipuay GD SZ eiuese u ojo e nuejza es 910 eu japow oen ez jsoupenodpoz nujsej eu e nseju A GD pz efloelepyep 15 sesane ueuny zn Ifeysuoroipuoy oyyeyszn yere ey nqipiiqye je ez elloesepyap I eA suieuny hsrejeud OWIAeUOIDIPUOY pex
15. RNING is likely to result in such grave consequences as death or serious injury A CAUTION Failure to follow any of CAUTION may result in grave consequences in some cases The following safety symbols are used throughout this manual 6 Be sure to observe this instruction e Be sure to establish an earth connection Q Never attempt After completing installation test the unit to check for installation errors Give the user adequate instructions concerning the use and cleaning of the unit according to the Operation Manual Z WARNING Installation should be left to the dealer or another professional Improper installation may cause water leakage electrical shock or fire Install the air conditioner according to the instructions given in this manual Incomplete installation may cause water leakage electrical shock or fire Be sure to use the supplied or specified installation parts Use of other parts may cause the unit to come to lose water leakage electrical shock or fire Install the air conditioner on a solid base that can support the weight of the unit An inadequate base or incomplete installation may cause injury in the event the unit falls off the base Electrical work should be carried out in accordance with the installation manual and the national electrical wiring rules or code of practice Insufficient capacity or incomplete electrical work may cause electrical shock or fire Be sure to u
16. d outdoor units are installed properly on solid bases Fall vibration noise No refrigerant gas leaks Incomplete cooling heating function Refrigerant gas and liquid pipes and indoor drain hose extension are thermally insulated Water leakage Draining line is properly installed Water leakage System is properly earthed Electrical leakage The specified wires are used for interconnecting wire connections Inoperative or burn damage Indoor or outdoor unit s air intake or exhaust has clear path of air Stop valves are opened Incomplete cooling heating function Indoor unit properly receives remote control commands Inoperative 11 English DAIKIN INDUSTRIES LTD DAIKIN EUROPE NV Head office Zandvoordestraat 300 B 8400 Oostende Belgium Umeda Center Bldg 2 4 12 Nakazaki Nishi Kita ku Osaka 530 8323 Japan Tokyo office JR Shinagawa East Bldg 2 18 1 Konan Minato ku Tokyo 108 0075 Japan http www daikin com global ac Two dimensional bar code is a code for manufacturing 3P203824 5B 7 117 AT
17. down to 15 C However it will stop if the outdoor temperature drops below 20 C and start back up once the temperature rises again 2 gt 51 1522 C 25521 L5le 9 S90 Os tet a J8 S Y PB nn Cut J8 with nippers 900000 or a similar tools 10 4 BL 20 s EL 000000 CAUTION 1 If the outdoor unit is installed where the heat exchanger of the unit is exposed to direct wind provide a windbreak wall 2 Intermittent noises may be produced by the indoor unit due to the outdoor fan turning on and off when using facility settings 3 Do not place humidifiers or other items which might raise the humidity in rooms where facility settings are being used A humidifier might cause dew jumping from the indoor unit outlet vent 4 Cutting jumper 8 J8 sets the indoor fan tap to the highest position Notify the user about this 9 English Wiring Z WARNING 1 Do not use tapped wires stranded wires extension cords or starburst connections as they may cause overheating electrical shock or fire 2 Do not use locally purchased electrical parts inside the product Do not branch the power for the drain pump etc from the
18. e main unit s remote control E 1 Press the operation stop button The selective connector for standby electricity saving in Operation will start use with standby electricity saving function turned OFF 2 Press the temperature A W button and the operation select button at the same time 3 Press the operation select button twice 7 will be displayed and the unit will enter test run mode 4 Press the operation select button to return the operation mode to cooling Test run mode will stop automatically after around 30 minutes To force a test run to stop press the operation stop button B Using the outdoor unit forced cooling operation switch with standby electricity saving function turned OFF 1 Push on with a screwdriver The unit will start operating 2 The forced cooling mode is selected and terminates in approx 15 minutes N CAUTION 1 When pressing the switch do not touch the terminal block It has a high voltage so doing so may cause electric shock 2 After closing the liquid stop valve close the gas stop valve within three minutes then stop the forced operation Facility Setting cooling at low outdoor temperature This function is limited only for facilities the target of air conditioning is equipment such as computer Never use it in a residence or office the space where there is a human 1 Cutting jumper 8 J8 on the circuit board will expand the operation range
19. he selective connector for standby electricity saving H 4 Turn ON the main power supply 5 z PIT Standby electricity saving Standby electricity saving function OFF function ON The standby electricity saving function is turned OFF before shipping N CAUTION 1 Before connecting or disconnecting the selective connector for standby electricity saving make sure that the main power sup ply is turned OFF 2 The selective connector for standby electricity saving is required if an indoor unit other than the above applicable ones is con nected English 8 Pump Down Operation In order to protect the environment be sure to pump down when relocating or disposing of the unit 1 Remove the valve cap from liquid stop valve and gas stop valve H 2 Carry forced cooling operation Liquid wena 3 After five to ten minutes close the liquid stop valve with a hexagonal wrench stop valve 4 After two to three minutes close the gas stop valve and stop forced cooling operation Gas stop valve Valve cap How to force cooling operation mode B Using the indoor unit operation stop button E Press the indoor unit operation stop button for at least five seconds Operation will start Forced cooling operation will stop automatically after around 15 minutes Push ZZ To force a test run to stop press the indoor unit operation stop button here Power supply terminal block E S dri Using th
20. ing torque 10 8 14 7N m 110 150kgf cm English 5 Purging air and checking gas leakage When piping work is completed it is necessary to purge the air and check for gas leakage N WARNING 1 Do not mix any substance other than the specified refrigerant R410A into the refrigeration cycle 2 When refrigerant gas leaks occur ventilate the room as soon and as much as possible 3 R410A as well as other refrigerants should always be recovered and never be released directly into the environment 4 Use a vacuum pump for R410A exclusively Using the same vacuum pump for different refrigerants may damage the vacuum pump or the unit If using additional refrigerant perform air purging from the refrigerant pipes and A s Compound Pressure indoor unit using a vacuum pump then charge additional refrigerant pressure gauge meter Use a hexagonal wrench 4mm to operate the stop valve rod All refrigerant pipe joints should be tightened with torque wrench at the specified manifold d tightening torque coe Valve caps valve High F g valve Low pressure valve Charging hoses Vacuum pump Service port Gas stop valve 1 Connect projection side of charging hose which comes from gauge manifold to gas stop valve s service port 4 2 Fully open gauge manifold s low pressure valve Lo and
21. length 1 5m Max allowable height 15m Additionl refrigerant Wrap the insulation pipe with required for refrigerant 209 the finishing tape from bottom pipe exceeding gm to top 10m in length Gas pipe O D 9 5mm Liquid pipe O D 6 4mm Be sure to add the proper amount of additional refrigerant Failure to do so may result in reduced performance The suggested shortest pipe length is 1 5m in order to avoid noise from the outdoor unit and vibration Mechanical noise and vibration may occur depending on how the unit is installed and the environment in which it is used When connecting the FVXS indoor unit the shortest piping length should be no less than around 2 5m N CAUTION Set the piping length from 1 5m to 20m Stop valve cover W How to remove the stop valve cover Remove the screw on the stop valve cover Slide the lid downward to remove it LAN Ft 4 e S 3 from wall W How to attach the stop valve cover Insert the upper part of the stop valve cover into the outdoor unit to install Tighten the screws Le A TANG KRY Allow space for piping and electrical servicing In sites with poor drainage use block bases for outdoor unit From uni Adjust foot height until the unit nit is leveled Otherwise water leakage or pooling of water
22. may Where there is a danger of the unit occur falling use foot bolts or wires unit mm 3 English Installation Guidelines Where a wall or other obstacle is in the path of outdoor unit s intake or exhaust airflow follow the installation guidelines below For any of the below installation patterns the wall height on the exhaust side should be 1200mm or less Wall facing one side Walls facing two sides More than 50 More than 100 4 Zr More than 15071 More than 100 More than 50 More than 50 Side view Top view Walls facing three sides 2 More than 50 JL More than 300 Top view Unit mm Precautions on Installation Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installed In accordance with the foundation drawing fix the unit securely by means of the foundation bolts Prepare four sets of M8 or M10 foundation bolts nuts and washers each which are available on the market tis best to screw in the foundation bolts until their length are 20mm from the foundation surface Y SI Outdoor Unit Installation 1 Installing outdoor unit 1 When installing the outdoor unit refer to Precautions for Selecting the Location and the Outdoor Unit Installation Draw ings 2 If drain work is necessary f
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24. oints and retighten nuts as needed then repeat steps 2 through 4 English 6 Outdoor Unit Installation 6 Refilling the refrigerant Check the type of refrigerant to be used on the machine nameplate Precautions when adding R410A Fill from the liquid pipe in liquid form It is a mixed refrigerant so adding it in gas form may cause the refrigerant composition to change preventing normal operation 1 Before filling check whether the cylinder has a siphon attached or not It should have something like liquid filling siphon attached displayed on it Filling a cylinder with an attached siphon Filling other cylinders Turn the cylinder upside down when filling Stand the cylinder upright when filling There is a siphon pipe inside so the cylinder need not be upside down to fill with liquid CO Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering Important information regarding the refrigerant used 1 This product contains fluorinated greenhouse gases covered by The filled out label must be adhered in the Ithe Kyoto Protocol Do not vent gases into the atmosphere proximity of the product charging port e g 1 factory refrigerant charge of the product see unit name plate onto the inside of the stop valve cover iRefrigerant type R410A E GWP value 1975 GWP global warming potential ine Kyoto proc 4 RED otal retrigerant charge i Please fill in
25. ollow the procedures below 2 Drain work Heat pump models 1 Use drain plug for drainage Ig Je cdi 2 If the drain port is covered by a mounting base floor surface place addi Bottom frame tional foot bases of at least 30mm in height under the outdoor unit s feet 3 In cold areas do not use a drain hose with the outdoor unit Otherwise drain water may freeze impairing heating performance Drain plug Hose available commercially inner dia 16mm English 4 Outdoor Unit Installation 3 Flaring the pipe end 1 Cut the pipe end with a pipe cutter 2 Remove burrs with the cut surface facing down ward so that the chips do not enter the pipe 3 Put the flare nut on the pipe 4 Flare the pipe 5 Check that the flaring is properly made N WARNING 1 Do not use mineral oil on flared part 2 3 4 5 6 4 Refrigerant piping N CAUTION Cut exactly at right angles Remove burrs Set exactly at the position shown below Flaring YA zi A Flare tool for RA10A Conventional flare tool Clutch type Clutch type Rigid type Wing nut type Imperial type 0 0 5mm 1 0 1 5mm 1 5 2 0mm Check Flare s inner The pipe end mus surface must be evenly flared in be flaw free a perfect circle Make sure that the flare nut is fitted Prevent mineral oil from getting into the system as this
26. om the possibility of flammable gas leakage in a nearby place 7 Install units power cords and inter unit cables at least 3 meter away from television and radio sets This is to prevent interference to images and sounds Noises may be heard even if they are more than 3 meter away depending on radio wave conditions 8 In coastal areas or other places with salty atmosphere of sulfate gas corrosion may shorten the life of the air conditioner 9 Since drain flows out of the outdoor unit do not place under the unit anything which must be kept away from moisture NOTE Cannot be installed hanging from ceiling or stacked N CAUTION When operating the air conditioner in a low outdoor ambient tempera ture be sure to follow the instructions described below 1 To prevent exposure to wind install the outdoor unit with its suction side facing the wall 2 Never install the outdoor unit at a site where the suction side may be exposed directly to wind 3 To prevent exposure to wind it is recommended to install a baffle plate on the air discharge side of the outdoor unit 4 In heavy snowfall areas select an installation site where the snow will not affect the unit Construct a large canopy Construct a pedestal Install the unit high enough off the ground to prevent burying in snow English 2 Outdoor Unit Installation Drawings Max allowable length 20m Min allowable
27. ormal pressure rise or rupture resulting in injury During pump down stop the compressor before removing the refrigerant piping If the compressor is still running and the stop valve is open during pump down air will be sucked in when the refrigerant piping is removed causing abnormal pressure in the freezer cycle which will lead to breakage and even injury During installation attach the refrigerant piping securely before running the compressor If the compressor is not attached and the stop valve is open during pump down air will be sucked in when the compressor is run causing abnormal pressure in the freezer cycle which will lead to breakage and even injury Be sure to establish an earth Do not earth the unit to a utility pipe arrester or telephone earth Incomplete earth may cause electrical shock or fire A high surge current from lightning or other sources may cause damage to the air conditioner Be sure to install an earth leakage breaker Failure to install an earth leakage breaker may result in electric shocks or fire N CAUTION Do not install the air conditioner in a place where there is danger of exposure to inflammable gas leakage 6 If the gas leaks and builds up around the unit it may catch fire Establish drain piping according to the instructions of this manual Inadequate piping may cause flooding Tighten the flare nut according to the specified method such as with a torque wrench
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29. se a dedicated power circuit Never use a power supply shared by another appliance For wiring use a cable length enough to cover the entire distance with no connection Do not use an extension cord Do not put other loads on the power supply use a dedicated power circuit Failure to do so may cause abnormal heat electric shock or fire Use the specified types of wires for electrical connections between the indoor and outdoor units Firmly clamp the interconnecting wires so their terminals receive no external stresses Incomplete connections or clamping may cause terminal overheating or fire After connecting interconnecting and supply wiring be sure to shape the cables so that they do not put undue force on the electrical covers or panels Install covers over the wires Incomplete cover installation may cause terminal overheating electrical shock or fire If any refrigerant has leaked out during the installation work ventilate the room Q The refrigerant produces a toxic gas if exposed to flames After all installation is complete check to make sure that no refrigerant is leaking out Q The refrigerant produces a toxic gas if exposed to flames When installing or relocating the system be sure to keep the refrigerant circuit free from substances other than the specified refrigerant R410A such as air Any presence of air or other foreign substance in the refrigerant circuit causes an abn
30. ut in either cooling or heating mode E For heat pump n cooling mode select the lowest programmable temperature in heating mode select the highest programmable temper ature 1 Trial operation may be disabled in either mode depending on the room temperature 2 After trial operation is complete set the temperature to a normal level 26 C to 28 C in cooling mode 20 C to 24 C in heating mode 3 For protection the system disables restart operation for 3 minutes after it is turned off For cooling only Select the lowest programmable temperature 1 Trial operation in cooling mode may be disabled depending on the room temperature 2 After trial operation is complete set the temperature to a normal level 26 C to 28 C 3 For protection the unit disables restart operation for 3 minutes after it is turned off 1 3 Carry out the test operation in accordance with the operation manual to ensure that all functions and parts such as louver movement are working properly The air conditioner requires a small amount of power in its standby mode If the system is not to be used for some time after installation shut off the circuit breaker to eliminate unnecessary power consumption If the circuit breaker trips to shut off the power to the air conditioner the system will restore the original operation mode when the circuit breaker is opened again 2 Test items Test items Symptom Check Indoor an
31. with indelible ink R410A m so 1 4 Contains fluorinated greenhouse 18 the factory refrigerant charge of the product N kg gases covered by the Kyoto m the additional refrigerant amount charged in the field and TO 1 0 0 the total refrigerant charge G Q 5 outdoor unit the refrigerant charge label supplied with the product TE Te 583 6 refrigerant cylinder and manifold Refrigerant piping work 7 1 Cautions on pipe handling 2 additional refrigerant amount charged in the field 1 Protect the open end of the pipe against dust and moisture 2 All pipe bends should be as gentle as possible Use a pipe bender for bending Bending radius should be 30 to 40mm or larger 7 2 Selection of copper and heat insulation materials When using commercial copper pipes and fittings observe the following 1 Insulation material Polyethylene foam Heat transfer rate 0 041 to 0 052W mK 0 035 to 0 045kcal mh Refrigerant gas pipe s surface temperature reaches 110 C max Choose heat insulation materials that will withstand this temperature 2 Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below IM Be sure to place a cap re Rain If no flare cap is available cover Liquid Gas side side Gas pipe thermal insulation Liquid pipe thermal insulation O D 9 5mm O D 6 4mm I
32. would reduce the lifetime of the units Never use piping which has been used for previous installations Only use parts which are delivered with the unit Do never install a drier to this R410A unit in order to guarantee its lifetime The drying material may dissolve and damage the system Incomplete flaring may cause refrigerant gas leakage 1 Use the flare nut fixed to the main unit To prevent cracking of the flare nut by aged deterioration 2 To prevent gas leakage apply refrigeration oil only to the inner surface of the flare Use refrigeration oil for RA10A 3 Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand Then tighten them fully with the torque wrenches Apply oil Do not apply refrigeration oil to the outer surface Flare nut Do not apply refrigeration oil to the flare nut avoid tightening with over torque Apply refrigeration oil to the inner surface of the flare Tighten Torque wrench Spanner Piping union Flare nut Flare nut tightening torque Valve cap tightening torque Gas side Liquid side Gas side Liquid side 3 8 inch 1 4 inch 3 8 inch 1 4 inch 32 7 39 9N m 14 2 17 2N m 21 6 27 4N m 21 6 27 4N 333 407kgf cm 144 175kgf cm 220 280kgf cm 220 280kgf cm Service port cap tighten
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