Ductless split air conditioner service manual design may vary by model number. • please read this manual before using the air conditioner. • keep this user manual for future reference. Safety precautions/introduction ......................................................................................
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Introduction page 3 english introduction safety precautions ............................................................................................................................................................. 4 warning and cautions ..............................................................
Introduction page 4 english •readthesesafetyprecautionscarefullytoensurecorrectinstallation. •thismanualclassifiestheprecautionsintowarningandcaution. •besuretofollowalltheprecautionsbellow:theyareallimportantforensuringsafety. ! Warning: failuretofollowanyofwarning islikelytoresultingraveconsequenc...
Introduction page 5 english introduction to system singlezoneductlesssplitsystemheatpumpsfeatureawall mountedindoorfan/evaporatorunitthatreceivesrefrigerant fromaninverterdrivenvariablespeedoutdoorcondensing unit.Thesystemoperationiscontrolledwitharemote control. Theoutdoorunitfeaturesavariablespeed...
Introduction page 6 english [thispageintentionallyleftblank.].
Outdoor unit controls & components page 7 english outdoor unit controls & components table of contents outdoor unit introduction ................................................................................................................................................. 8 outdoorcomponentidentif...
Outdoor unit controls & components page 8 english outdoor unit introduction theoutdoorcondensingunitmodelsareheatpumpsystems.Theoutdoorunithastwocircuitboards,amoduleboardthat drivesthecompressorandamaincontrolboardthatmanagessystemfunctionsandinvertercalculations.Temperature sensorsmonitorkeytemper...
Outdoor unit controls & components page 9 english outdoor control board cn10-connectorformodulepowerfromcn22on the control board cn26-pgoestocn1onthemoduleboard cn24-ngoestocn5onthemoduleboard cn23-modulecommunication cn7-reactor 2 cn19-connectorfordefrosttemperaturesensor 8 cn22-connectorfor dcpowe...
Outdoor unit controls & components page 10 english terminalblock powerfactorreactor thereactorisaninductivefilterthatwillaidincorrectionof electricalpowerfactorinfluenceofinvertercapacitance.Itis unlikelytoeverhaveanelectricalfailureofthiscomponent. Thereactoriselectricallyconnectedtothemoduleboardo...
Outdoor unit controls & components page 11 english discharge temperature sensor defrost temperature sensor thedefrosttemperaturesensorisanegativecoefficient thermistorthatwillchangeresistanceinresponsetooutdoor coiltemperaturechanges.Themaincontrolboardmonitors thetemperatureoftheoutdoorcoiltodeterm...
Outdoor unit controls & components page 12 english 4-way valve electronic expansion valve themeteringdeviceisanelectronicexpansionvalvetype eev.Thevalveconsistsofanelectricaloperatorandavalve bodywithinternalvariablesizeorifice.Whenoperating, themaincontrolboardwillsendpulsesofvoltagetothe electrica...
Indoor unit controls & components page 13 english indoor unit controls & components table of contents indoor unit introduction .................................................................................................................................................. 14 indoorcomponentidentifi...
Indoor unit controls & components page 14 english indoorcomponentidentification indoor unit introduction theindoorunitismountedhighonthewalltoprovideairconditioningcoverageofaconditionedspace.Fieldinstalled/supplied condensatepumpaccessoriescanbeaddedtothesesystems. Featuresofthesysteminclude:variab...
Indoor unit controls & components page 15 english indoor control board dcmotor-fanmotor 2 stepmotor-connectorforup&down louversteppermotor 6 cn20-connectorforroomcard 4 fuse-fuse3.15a/250vac 1 sw1-emergencyswitch 5 cn1-connectorforheatexchanger thermistorandroomtemperature thermistor 3 cn36-connecto...
Indoor unit controls & components page 16 english terminalblock display theindoorunitterminalblockreceiveselectricalpowerfrom theoutdoorunit.Thereare4connectionsforelectricalwires. Terminals1and2areconnectedtoterminals1and2ofthe outdoorunit.Thiswiringsuppliespowertotheindoorunit. Terminal3isacommuni...
Indoor unit controls & components page 17 english stepper motor louver fan motor emergency button theindoorfanmotorisavariablespeedmotor.The motorwillvaryspeedwiththespeedofthecompressor inverter.Thespeedcanalsobesetattheremotecontrol orautomaticallyadjustedusingtheautofanmode.When inautofanmode,the...
Remote control functions page 18 english [thispageintentionallyleftblank.].
Remote control functions page 19 english remote control functions table of contents remote controller 1 ......................................................................................................................................................... 20 remote controller 2 ......................
Remote control functions page 20 english 3 8 6 17 4 15 16 12 10 9 7 5 14 2 13 11 1 1 powerbutton presstheon/off button on the remote control to start the unit. 2 quiet button thisfunctionmaybeusedwhensilenceisneededforrestor reading.Pressthequiet 48,(7 button,theremotecontrol willdisplaythequiet ico...
Remote control functions page 21 english toadjustleftandrightdirectionreferringtothefigurebelow. ' cautions: • turntheunitoffpriortoopeningthehorizontallouverand adjustingtheverticalbladesbyhand. • whenhumiditylevelsarehigh,condensatewatermayoc- curattheairoutletifallverticallouversareadjustedtoleft...
Remote control functions page 22 english theextrafunction (;75$ )81&7,21 button until isdisplayed.This willadjusttheleftandrightpositioningofthelouvers. Presstheconfirm/cancel &21),50 &$1&(/ buttontoapplytheset- ting. F) a-b yard -thiswillallowyoutocontroltwoseparateunits withasingleremotecontrol. N...
Remote control functions page 23 english 3 8 6 19 4 17 18 14 13 10 9 7 5 16 2 15 11 12 1 1 powerbutton presstheon/off button on the remote control to start the unit. 2 turbo/quiet button theturbofunctionisusedforfastheatingorcooling. Presstheturbo/quiet button once and the remote controlwilldisplayt...
Remote control functions page 24 english 9 louver swing button - vertical airflowdirectionadjustment presstheswingup/downbuttontochoosethepositionof theverticalairflowlouvers. Statusdisplayofairflow cool/dry: heat: caution: • itisadvisablenottokeeptheverticallouverinthedown- wardpositionforanextende...
Remote control functions page 25 english thetime.Afterreplacingbatteriesorapowerfailureoccurs, thetimesettingwillneedtobereset. Accordingtothetimesettingsequenceoftimeronor timeroff,eitherstart-stoporstop-startcanbeachieved. 13 sleep button sleep mode presstheextrafunction button to enter additional...
Remote control functions page 26 english 15 health button feature not available on this series. 16 confirm/cancelbutton function:settingandcancelingtimerandotherfunctions. 17 lock button usedtolockbuttonsandlcddisplay 18 light button turnsindoorunitdisplayonandoff 19 reset button iftheremotecontroli...
Sequence of operation page 27 english sequence of operation table of contents systempower .................................................................................................................................................................. 28 cool mode .....................................
Sequence of operation page 28 english systempower the240voltacpowerforthesystemconnectstoterminals 1(n),2(l),andgroundoftheoutdoorunitterminalblock.This terminalblockalsohasterminalstoconnectpowertothe indoor unit. Thevoltagereadingsbetweenterminals1(n)andground,and terminals2(l)andgroundshouldbe120...
Sequence of operation page 29 english theoutdoorunitmainboardalsocontrolsthepositionofthe eev(electronicexpansionvalve) toregulatetheflowofrefrigeranttotheindoorunitevapora- tor coil. Temperature sensors fourtemperaturesensorslocatedintheoutdoorunitprovide temperatureinformationtotheoutdoorunitmainb...
Sequence of operation page 30 english ambientandtube,provideinformationtotheoutdoorcontrol boardtomonitorthesystemandregulatethefrequencyof thecompressor,eevpositioning,andoutdoorfanspeedto achievethedesiredroomtemperature. Whenheatinghasbeensatisfied,theoutdoorunitcompres- sorwillturnofffirstandfol...
Sequence of operation page 31 english thecompressordischargesensorprovidesthetemperature sensedatthedischargepipeofthecompressor. Call to terminate heating thesystemwillcalltoterminateheatingwhentheindoor ambienttemperaturesensorisequaltoorhigherthan2°f abovetheroomsettemperature.Theindoorcontrolboa...
Sequence of operation page 32 english temperature sensors fourtemperaturesensorslocatedintheoutdoorunitprovide temperatureinformationtotheoutdoorunitmainboardfor controlofthesystemduringdrymode. Theoutdoorambienttemperaturesensorprovidesthe temperatureoftheairdrawnintothecondensercoilofthe outdoor u...
Sequence of operation page 33 english 59°f//ice_temp_3+5 46°f//ice_temp_3+2 43°f decreasingslowly decreasingrapidlyice_temp_1 stop keepingthefrequency increasingslowly 32°f 37°f 41°f 43°f 48°f wiring diagrams 25 domestic air conditioner , decrease the rotate speed of the compressor and do the high t...
Sequence of operation page 34 english [thispageintentionallyleftblank.].
Installation page 35 english installation table of contents step 1 - preparation ......................................................................................................................................................... 36 requiredtoolsforinstallation ....................................
Installation page 36 english f a c e d the marks from to in the figure are the parts numbers. The distance between the indoor unit and the floor should be more than 6.5 ft. The models adopt hfc free refrigerant r410a more than 4 in. More than 4 in. More than 4 in. More than 8 in. More than 6 in. More ...
Installation page 37 english 2.1 step 2.1 usingastudsensor,locateandmarkthestudpositionsinthe wallwheretheindoorunitistobemounted. 2.2 step 2.2 placethemountingplateonthewallinthedesiredlocation takingintoaccounttheminimumclearancesnecessaryfor properoperation. Usingalevel,verifythemountingplateisho...
Installation page 38 english illustration2 illustration3 2.9 step 2.9 withthetopoftheindoorunitclosertothewall,hangthe indoorunitontheupperhooksofthemountingplate.Slide theunitslightlysidetosidetoverifyproperplacementofthe indoorunitonthemountingplate.Rotatethelowerportion oftheindoorunittothemounti...
Installation page 39 english step4.2 step4.1 step4.3 table1 step3.3 step3.4 half union flare nut torque wrench spanner forced fastening without careful centering may damage the threads and cause a leakage of gas. Pipe diameter(ǿ) fastening torque liquid side6.35mm(1/4") 18n.M/13.3ft.Lbs liquid/gas s...
Installation page 40 english hazardofexplosion!Neveruseanopenflametodetectgas leaks.Explosiveconditionsmayoccur.Usealeaktestsolution orotherapprovedmethodsforleaktesting.Failuretofollow recommendedsafeleaktestprocedurescouldresultindeath orseriousinjuryorequipmentorpropertydamage. Useonlydrynitrogen...
Installation page 41 english illustration6 it becomes high midway. The gap with the ground is too small there is the bad smell from a sewer it waves. The end is imm- ersed in water. Less than 5cm pipinghole.Useasealanttosealthepipingholeopening topreventweatherelementsfromenteringthebuilding. (illus...
Installation page 42 english • usingtheoperatinginstructions,explaintotheuserhowtousetheairconditioner(theremotecontroller,removing theairfilters,placingorremovingtheremotecontrollerfromtheremotecontrollerholder,cleaningmethods,precautionsfor operation,etc.) • recommendthattheuserreadtheoperatingins...
Installation page 43 english section 9 - seacoast application • theoutdoorunitshouldbeinstalledatleast1/2mileawayfromthesaltwater,includingseacoastsandinlandwaterways.If theunitinstalledfrom1/2mileto5milesawayfromthesaltwater,includingseacoastsandinlandwaterways,pleasefollowthe installationinstructi...
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Error codes & problem solving page 45 english error codes & problem solving table of contents error codes and description indoor display ..................................................................................................................... 46 indoor unit display .........................
Error codes & problem solving page 46 english code indication description indoor outdoor (led1flash times) indoor & outdoor e7 15 communicationfaultbetweenindoorandoutdoorunits indoor malfunction e1 / roomtemperaturesensorfailure e2 / heat-exchangesensorfailure e4 / indooreepromerror e14 / indoorfan...
Error codes & problem solving page 47 english indoor ac fan motor malfunction indoor display e14 thisiscausedbyanindoormotororindoorpcbfault spare parts: indoorpcb indoormotor changeindoorpcband checkifproperoperationis restored faultcorrected,resume systemoperation indoormotorisfaulty, change indoo...
Error codes & problem solving page 48 english outdoor dc fan motor fault outdoor display led1 flashes 9 times thisiscausedbyanoutdoormotororoutdoorpcbfault spare parts: outdoorpcb outdoormotor turnpoweroffandcheck whethertheoutdoormotorplug connection is secure restorepowertotheunitandturn systemoni...
Error codes & problem solving page 49 english ipm protection outdoor display led1 flashes 2 times underthiserror,pleaseensuretherefrigerantsystem pressureisnormalwithnoblockages,thenreplacepower module spare parts: powermodule refrigerant turntheuniton. Istheerrordisplayedbefore thecompressorstarts?...
Error codes & problem solving page 50 english thecommunicationfaultbetweenipmandoutdoorpcb outdoor display led1 flash 4 times spare parts: powermodule outdoorpcb 1)checktheplugsofmodulecomandmodulepoweronthe outdoorpcbandipmmodulesforsecureconnections 2)checkthep&nwiresbetweentheoutdoorpcbandipmmodu...
Error codes & problem solving page 51 english powersupplytoohighortoolow outdoor display led1 flashes 6 times spare parts: powermodule turntheuniton. Isthecompressoroperating normally? Thepowersupplyisunstable. Replacepowermodule replacepowermodule checkthep&nterminalsofthe powersupplyontheoutdoor p...
Error codes & problem solving page 52 english overheat protection for discharge temperature outdoor display led1 flashes 8 times spare parts: outdoorpcb exhaustsensor turntheuniton.Checkthe exhausttemperatureofthe compressor. Thepowersupplyisunstable. Thereislossofrefrigerant checkrefrigerantcharge ...
Error codes & problem solving page 53 english loss of synchronism detection outdoor display led1 flashes 18 or 19 times spare parts: compressor powermodule 1.Thecompressorwiringis incorrect or has bad connections 2.Thecompressorisdamaged turntheuniton. Doesthecompressorstart? Thecompressorstarts,but...
Error codes & problem solving page 54 english checkingsystemcomponents checkingoutdoorunitcomponents note:componentresistancereadingsshowninthissection areforreferenceonly.Actualresistancevaluesmaydiffer based on model being tested. Componentreadingsshownbelowarebasedonamodel hsu12vhgl-woutdoorunit....
Error codes & problem solving page 55 english wiringandconnectionstothepfcreactoraswellasthepfc reactoritself.Repairorreplaceasnecessary. Step 3 reconnectthewiringtothemoduleboardattheconclusion of the test. Checkingthesocketprotectcomponent step 1 disconnectthesocketprotectplugfromthecontrol boardc...
Error codes & problem solving page 56 english red orange yellow pink blue grey red 193.0ohm 189.5ohm 185.4ohm 191.5ohm --- orange 381.6ohm 377.4ohm 383.3ohm 47.0ohm yellow 373.9ohm 379.9ohm --- pink 375.8ohm 46.8ohm blue --- grey step 3 re-seattheplugontheconnectorattheconclusionofthe test. Checking...
Reference information page 57 english reference information table of contents outdoor board diagram ................................................................................................................................................... 58 outdoor board schematic ............................
Reference information page 58 english outdoor board diagram.
Reference information page 59 english outdoor board schematic hg (db )-s m wiring di agra ms domestic air conditioner 11 .2.Outdoorunit 11 .2.1control bard circuit diagrams 13 gnd 4 gnd 3 gnd 2 gnd 1 vcc 8 gnd 7 scl 6 sda 5 ic6 at 24c0 2b 1 cn2 ac- l 1 cn1 ac- n bl ack wh ite fu se 1 t2 5a 2 50v a c...
Reference information page 60 english hg (db )-s m wiring di agra ms domestic air conditioner 13 gnd 4 gnd 3 gnd 2 gnd 1 vcc 8 gnd 7 scl 6 sda 5 ic6 at 24c0 2b gnd 12 v 5 6 p1 2sa 10 37 a k r4 7 5. 1k /1% r50 1k c2 0 102/ 50 v c1 3 104/ 50 v +5v c12 104 /50v r63 560 r65 10 k r64 10k r5 4 10k 1 2 cn2...
Reference information page 61 english indoor board diagram.
Reference information page 62 english indoor board schematic h su 12 hg (db )-s m wiring di agra ms domestic air conditioner 11.Circuit diagrams 11 .1.Indoor unit a0 1 a1 2 a2 3 v ss 4 sd a 5 sc l 6 tes t 7 vcc 8 ic1 at2 4c02b r 33 56 0Ω +5v c11 0. 1u f r 29 10k r30 10k sc l sd a eeprom r3 2k c1 0....
Reference information page 63 english indoor board schematic hg (db )-s m wiring di agra ms domestic air conditioner 91 ic8 u ln20 03a c15 0. 1u f +12 v bu zz 1 pk m 13 ep y- 40 02 r 50 2k r82 22 0Ω r 88 10k 1 2 3 4 cn 34 5267 -04a r98 100Ω r97 100Ω r89 10 k +5v c24 10nf rx tx gn d +5v net_tx net co...
Reference information page 64 english cn24 n 11 .2.2 module board circuit diagram c009 471 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73...
Reference information page 65 english room and pipe sensor tables temp.°f temp.°c max.(kΩ) normal(kΩ) min.(kΩ) tolerance(°c) -22 -30 165.2170 147.9497 132.3678 -1.94 1.75 -20 -29 155.5754 139.5600 125.0806 -1.93 1.74 -18 -28 146.5609 131.7022 118.2434 -1.91 1.73 -17 -27 138.1285 124.3392 111.8256 -1...
Reference information page 66 english room and pipe sensor tables temp.°f temp.°c max.(kΩ) normal(kΩ) min.(kΩ) tolerance(°c) 64 18 13.9436 13.4185 12.9017 -0.91 0.90 66 19 13.3431 12.8572 12.3778 -0.88 0.87 68 20 12.7718 12.3223 11.8780 -0.86 0.85 70 21 12.2280 11.8126 11.4011 -0.83 0.83 72 22 11.71...
Reference information page 67 english room and pipe sensor tables temp.°f temp.°c max.(kΩ) normal(kΩ) min.(kΩ) tolerance(°c) 151 66 2.3815 2.2098 2.0486 -2.40 2.25 153 67 2.3068 2.1383 1.9803 -2.45 2.29 154 68 2.2347 2.0695 1.9147 -2.49 2.34 156 69 2.1652 2.0032 1.8516 -2.54 2.38 158 70 2.0983 1.939...
Reference information page 68 english room and pipe sensor tables ambient, defrosting, pipe sensor tables temp.°f temp.°c max.(kΩ) normal(kΩ) min.(kΩ) tolerance(°c) 237 114 0.6043 0.5374 0.4775 -4.92 4.41 239 115 0.5891 0.5235 0.4648 -4.98 4.45 241 116 0.5743 0.5100 0.4524 -5.04 4.50 243 117 0.5600 ...
Reference information page 69 english ambient, defrosting, pipe sensor tables temp.°f temp.°c max.(kΩ) normal(kΩ) min.(kΩ) tolerance(°c) 45 7 23.0284 21.8398 20.6939 -1.18 1.14 46 8 21.9714 20.8659 19.7982 -1.15 1.12 48 9 20.9688 19.9409 18.9463 -1.13 1.09 50 10 20.0176 19.0621 18.1358 -1.11 1.07 52...
Reference information page 70 english ambient, defrosting, pipe sensor tables temp.°f temp.°c max.(kΩ) normal(kΩ) min.(kΩ) tolerance(°c) 131 55 3.4195 3.2085 3.0079 -1.91 1.82 133 56 3.3060 3.0989 2.9021 -1.95 1.85 135 57 3.1969 2.9935 2.8005 -2.00 1.89 136 58 3.0919 2.8922 2.7029 -2.04 1.93 138 59 ...
Reference information page 71 english discharging sensor tables ambient, defrosting, pipe sensor tables temp.°f temp.°c max.(kΩ) normal(kΩ) min.(kΩ) tolerance(°c) 217 103 0.8061 0.7233 0.6484 -4.29 3.88 219 104 0.7848 0.7036 0.6303 -4.34 3.92 221 105 0.7641 0.6845 0.6127 -4.40 3.97 223 106 0.7441 0....
Reference information page 72 english discharging sensor tables temp.°f temp.°c max.(kΩ) normal(kΩ) min.(kΩ) tolerance(°c) 25 -4 2738.6777 2368.3158 2046.1961 -2.60 2.26 27 -3 2581.6752 2236.3876 1935.5371 -2.58 2.25 28 -2 2434.5487 2112.5459 1831.4826 -2.56 2.24 30 -1 2296.6230 1996.2509 1733.6024 ...
Reference information page 73 english discharging sensor tables temp.°f temp.°c max.(kΩ) normal(kΩ) min.(kΩ) tolerance(°c) 113 45 218.3860 203.2887 189.0648 -1.67 1.57 115 46 208.7855 194.6066 181.2273 -1.65 1.55 117 47 199.6531 186.3369 173.7524 -1.63 1.54 118 48 190.9639 178.4584 166.6217 -1.60 1....
Reference information page 74 english discharging sensor tables temp.°f temp.°c max.(kΩ) normal(kΩ) min.(kΩ) tolerance(°c) 201 94 31.8302 30.4467 29.0970 -1.33 1.30 203 95 30.7933 29.4246 28.0915 -1.37 1.34 205 96 29.7950 28.4417 27.1254 -1.41 1.37 207 97 28.8337 27.4961 26.1970 -1.45 1.41 208 98 27...
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