service manual for tas 09, 12ehu
Contents
1.2. Air conditioners are units that should have the professional te
3. The indoor power supply The power is 220 240V 60HZ model ndoor uni ral To power Outdoor unit The outdoor power supply The power is 220 240V 60HZ mode To power source Indoor unit 1 N3 The outdoor power supply The power is 220 240V 60HZ mode To power source ndoor unit 1 21123 The outdoor power supply The power is 220 240V 60HZ mode To power source ndoor unit 1 2 3 Outdoor unit L lt 25m 81 9673FT ees L lt 25m 81 9673FT r 8mm 8mm 8mm 8mm 0 315inch 0 315inch 0 315inchy 0 315inch 100mm 40mm gt 100mm 40mm gt 3 937inch 1 575inch 3 937inch 1 575inch The power wire The connecting wire Note The environment conditions must be taken into consideration when the connections of power cable are made such as the ambient temperature direct exposure to heat direct exposure to sunlight The specifications for the power cable refer to the minimum values of the metal core wires Taking into consideration the voltage losses the core wire of power cable must be one size larger than the specifications The grounding wire must be connected to the indoor units and outdoor units The laying of power cables must be done by qualified electricians and c
4. Ths malfunction The majfunction The reason of fault and solution 1 Check whether the resistance of sensor is normal otherwise replace it 2 Check whether the sensor wire is short circuit or open circuit and whether the plug is well contacted whether there is welding ay The outdoor sensor off or rosin joint on the electric control board repair it if there is fault any above 3 When the 1 and 2 are both normal then the component or integrated circuit is damaged the electric control board should be replaced FA The cmmunication fault between the wire controller and the indoor PCB 1 check whether the wire controllers connecting wire is short circuit or loose please make it connect well 2 Check the connecting line wire controller PCB whether they are loose or have a bad contact Please make them have a good contact FC outdoor unit driving fault starting compressor failure 1 Turn on the power again and then check whether the operation of the compressor is normal 2 Check whether the connection of the compressor is correct or reliable otherwise repair it 3 Check whether the components on the electric contro board have been damaged if they are damaged the components or the electric control board should be replaced 4 Check whether the connecting wires are disentwined between the Intelligent Power Module board and the main board otherwise make the wires connect firmly FF The outdoo
5. unit 24 200m 4 8 min gt Space for maintenance 500mm 1 8 min 500mm 1 8 min lt 5 When there are obstacles all around the unit on four sides Although the top side is open the installation is not to be done if there are obstacles all around Atleast two sides should be kept open e installation fixture of indoor unit Pipelines can be connected in the directions of Fig 1 and as indicated in Fig 1 When the pipelines Left outlet are connected to the directions of and a groove for the pipes has to be opened at the proper place on 2 the base stand Right ouiet Left rear outlet DRear outlet 1 Installation of wall mounting plate Bottom outlet Fix the wall mounting plate firmly on the wall with screws Make sure of the leveling of the plate Slanted wall mounting plate might jeopardize the smooth discharge of the condensed water Fig 2 2 Drill holes on the wall Fix with a tapg Drill holes at places slightly below the wall mounting plate with hole diameter of 65mm 2 3 5 and the outer edge of the hole 5 10mm 1 5 2 5 lower Fig 2 so that the condensed Watap water can smoothly flow out Cut the wall penetrating pipe Wall pipe a to proper length according to the thickness of the wall 3 Interior 7A Exterior 5mm 1 10 1 5 longer than the wall thickness and insert the pipe as indicated in Fig 2 5 10mm lo
6. Ep 22000 24000BTU Pipelines connection for Whole Unit type quick coupler model If you purchase the machine for Whole Unit Fig 9 type quick coupler model please adopt the following pipeplines connection procedures STEP 1 Remove two screws on the maintance plate with a screwdriver and take off the plate then remove the ulddor Valve tor gas 7 leaki d dust caps on both indoor male coupler and outdoor cee Fig 10 female coupler See Fig 9 reing section STEP 2 Press the projecting section of outdoor female Le coupler backward with a little force by the thumb to make inner hooks open and then you can easily take Outdoor female coupler Outdoor Valve for gas leaking out the outdoor valve for gas leaking by the other a Seat hand See Fig 10 Fig 11 STEP 3 Inthe same way press the projecting section backward then connect the indoor male coupler to the outdoor female coupler See Fig 11 Outdoor female coupler Indoor male coupler 8 STEP 4 Close the key lever of indoor male coupler to the Fig 12 horizontal position then indoor and outdoor refrigerant will be circulating and now you can obvioulsy hear the sound of inner air flowing See Fig 12 Key lever STEP 5 Connect the outdoor quick cable coupler with indoor quick cable coupler Fig 13 STEP 6 Finally Re install the mainteance plate back into its Wrap with ethylene tape
7. damaged the electric control board should be replaced 1 DC motor fault FF 14 Light other fault 2 NO refrigerant 3 Other fault 1 Check whether the filter of indoor unit is too dirty and it should be cleaned when it is too dirty Pl 1 Light temp of evaporator 2 Check whether it has barrier around indoor unit protection overheat over it should be remove if it has 3 Check whether the indoor motor is damaged it should be replaced motor or electrical control board when it is damaged 1 Check whether the fixation between the IPM module and the radiator is firm 2 Check whether the compressor is well otherwise protection P2 2 Light current protection replace it of inverter module 2 3 Check whether the IPM module is abnormal otherwise replace it 1 Check whether the ambient temperature exceeds the f operation range for the air conditioner P3 3 Light over current P 8 2 Check whether the current detection circuit is abnormal the electric control should be replaced when it is abnormal 1 Check whether the air condition system and pressure f discharge temp of are normal P4 4 Light compressor 2 Check whether the sensor connecting wire of the protection sensor and the detection circuit are abnormal 1 Check whether the air condition system and pressure over heat of are normal P5 5 Light f f compressor top 2 Check whether the sen
8. hoisting cables to lift it up During shipping the outdoor unit must not be slanted to over 45 degrees Do not store the unit in a horizontal way Use expansion bolts to fix the mounting supports on the wall Use bolts and nuts to fix the outdoor unit firmly on the supports and keep on the same level If the unit is installed on the wall or at the rooftop the supports have to be firmly fixed so as to resist earthquake or strong wind Dimensions for parallel units installations cr cro N ay 300mm 1 min ge MEE ordinary pipelines connection amp Air purging The following ordinary pipelines connection and air purging procedures are just suitable for non quick coupler model W Ordinary pipelines connection No dust foreign articles air or moisture should be allowed to enter the air conditioning system Careful attention should be paid when pipeline connection for outdoor unit is made Try to avoid repeated curves as much as possible otherwise hardening or cracks might be caused to the copper pipes Suitable wrenches should be used when the pipeline connection is done so as to ensure appropriate torque refer to following torque Table 1 Excessive torque might damage the joints while too little torque might lead to leakage 4 Table 1 Torque based upon the wrench to be used Outer diameter of copper pipe Tightening torque Strengthened tightening torque 6 35 1 4 160kgf c
9. acles near the outlet and inlet e If irregular sound is heard during operation consult with your distributor Winspection and Maintenance e According to the service conditions and operating environment the inside of the air conditioner will become dirty after several seasons 3 to 5years of service resulting in decreased operating performance Inspection and maintenance are recommended in addition to usual cleaning The air conditioner can be used for a longer period and without anxiety e As to inspection and maintenance consult your dealer or any one of business offices of dealing companies Service charge is required in this case We recommend to perform inspection and maintenance during an off seasons seif Diagnosis Functions Our company provides the thoughtful services for customer air conditioners had been installed self diagnosis system to display the information for the units The malfunction code The malfunction The reason of fault and solution F1 The communication fault 1 the communication wire is broken off Please check whether the wire is disentwined 2 Please check whether the electrical control board is damaged It should be replaced when it is damaged 3 Please check whether the power ground wire is reliable 4 Please check whether the unit is abnormal caused by the external interference If it is then find the interfering sources and remove them F2 The indoor empera
10. adjustments and timer settings are working properly 9 Check if the drain is smooth Check if there is any abnormal noise or vibration during operation Check if there is leakage of refrigerant is the unit installed correctly W Suitable Installation Position Isn t there anything which prevents ventilation or obstructs operation in front of the indoor unit Do not install the unit following place Inflammable gases may leak Oil splashes a lot In case where the unit is used in such places as poisonous or sultry gases are generated or seaside district exposed to sea breezes corrosion may cause malfunction Consult with your distributor e Air conditioner body and remote controller must be m 39 3 4 or more away from a TV or a radio Drain the dehumidified water from the indoor unit to a place which drains well WPay attention to operation noise When installing the unit choose a place which can stand the weight of the unit well and does not increase the operation noise or vibration Especially where there is a possibility that vibration be transmitted to the house fix the unit by inserting attached vibration proof pads between the unit and fittings e Choose the place where hot air and operation noise from the outlet of the outdoor unit do not annoy the neighborhood e Things left near the outlet and inlet of the outdoor unit cause malfunction or increased operation noise Do not leave obst
11. bending radius while soft pipes operating Undersize bending will damage the soft pipe Please Keep the minimum bending radius while installing Short soft pipes will have them bending undersize it s not allowed
12. chnicians do the installation for you Installation must be performed in accordance with the requirements of NEC and CEC by authorized personnel only This Instruction Guide is the universal purpose version for the models of split wall mounted air conditioners manufactured by our Co The appearance of the units that you purchase might be slightly different from the ones described in the Guide but it does not affect your proper operations and usage Please read carefully the sections corresponding to the specific model you choose and keep the Guide properly so as to facilitate your reference at later time Selection of installation positions for indoor unit Selection of installation positions for outdoor unit Installation fixture of indoor unit Installation fixture of outdoor unit Ordinary pipelines connection amp Air purging Installation of electric components Pipelines connection for Split type quick coupler model Pipelines connection for Whole Unit type quick coupler model Connection of power cable Finishing touches and test running Is the unit installed correctly Self diagnosis functions Quick connector installation instruction Installation Guide OMAN aR RON a oe oo ae co ar oO Selection of installation positions for indoor unit To be installed at the position where the air delivered from the unit can reach every corner of the room To avoid being affected by the outdoor air To avoid blockage to the ai
13. dle outlet fan motor of indoor unit fault 1 2 3 1 2s 3 Check whether the resistance of sensor is normal otherwise replace it Check whether the sensor wire is short circuit or open circuit and whether the plug is well contacted whether there is welding off or rosin joint on the electric control board repair it if there is any above When the 1 and 2 are both normal then the components or integrated circuit is damaged the electric control board should be replaced Check whether the contact of the plug of the motor wire and socket is well making sure well contact Check whether the indoor motor has damaged the motor should be replaced when it is damaged Check whether the controllable silicon and other components on the electric control board have damaged replace the controllable silicon or electric control board when they are damaged F5 Light module of outdoor unit fault 1 2 3x 4 Check whether the connection of the compressor is reliable otherwise connect firmly again Check whether the fixation between the IPM module and the radiator is firm Check if the compressor is well otherwise replace it Check whether the IPM module is abnormal otherwise replace it F6 F7 Light Light ambient temp sensor of outdoor fault coil pipe temp sensor of outdoor unit fault 1 2x 3 JES 2x 3 Check whether the resistance of sensor i
14. ise replace it Check whether the sensor wire is short circuit or open circuit and whether the plug is well contacted whether there is welding off or rosin joint on the electric control board repair it if there is any above When the 1 and 2 are both normal then the components or integrated circuit is damaged the electric control board should be replaced inductor of Check whether inductor of current or voltage have been FA 10 Light current or voltage damaged they should be replaced if they are fault fault 1 Power on again and check the operation of the compressor is normal 2 Check whether the connection of the compressor is i reliable otherwise repair FC 11 Light compressor drive P ae 3 Check whether the components on the electric control a board have been damaged if they are damaged the components or the electric control board should be replaced phase lacking or FD 12 Light phase sequence Check power wire voltage or change two power wires fault 1 Check whether the resistance of sensor is normal otherwise replace it Check whether the sensor wire is short circuit or open f 2 circuit and whether the plug is well contacted whether FE 13 Light gas return sensor ae there is welding off or rosin joint on the electric control fault include P board repair it if there is any above A B C D 3 When the 1 and 2 are both normal then the components or integrated circuit is
15. m 63kgf inch 200kgf cm 79kgf inch 9 52 3 8 300kgf cm 118kgf inch 350kgf cm 138kgf inch 12 7 1 2 500kgf cm 197kgf inch 550kgf cm 216kgf inch 15 88 5 8 750kgf cm 295kgf inch 800kgf cm 315kgf inch 19 05 3 4 1200kgf cm 472kgf inch 1400kgf cm 551kgf inch WAir purging with vacuum pump 1 Check that pipelines connection have been properly connected remove the charging port cap and connect the manifold gauge and the vacuum pump to the charging valve by service hoses as shown Fig 6 2 Open the valve of the low pressure side of manifold gauge then run the vacuum pump Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below 1 5mmHG The operation time for vacuuming is about 10 minutes When the desired vacuum is reached close the valve of the low pressure of the manifold and stop the vacuum pump 3 Disconnect the service hoses and fit the cap to the charging valve 4 Remove the blank caps and fully open the spindles of the 2 way and 3 ways valves with a service valve wrench 5 Tighten the blank caps of the 2 way and 3 ways valves applying the above torque Table 1 H Gas leakage inspection After the pipieline connection is done use a leakage inspection device or soap suds to carefully check if there is any leakage at the joints This is an imporant step to ensure the quality of installation Once a leakage is detected proper treatment should be taken im
16. mediately Installation of electric components E Points of attention HACR type breaker should be utilized along with proper installation Make sure of the applicable voltage and cables or wires for the specific model to be used before doing the connections e Read the prompts at the terminal board for wiring Make sure the wiring is done correctly Pay attention to the poles of the signal terminal and connect the terminals to match the identification numbers When the wiring connections are wrong the compressor will not work The connecting wires are not supplied The provision for connection of one of the wiring systems that in accordance with the National Electric Code shall be had ANSI NFPA 70 1990 would be acceptable for it 5 Indoor unit Outdoor unit 3 way valve 2 way valve C lt P Manifold gauge Can Union nut Blank cap l 1 Oro DAA l i Charging Valve stem port Pressure gauge Service hose Vacuum pump IP HE Fig 6 e TAS 09EHU amp TAS O9EHU O TAS 12EHU amp TAS 12EHU O The connecting wires specification is 18 AWG VW 1 orTHHW copper core and 90 C or 194 F TAS 18EHU amp TAS 18EHU O TAS 24EHU amp TAS 24EHU O The connecting wires specification is 18 AWG VW 1 orTHHW copper core and 105 C or 221 F Hi Connection of wires for outdoor unit The outdoor power supply The power is 115V 60HZ model To power source ndoor unit T 20 3
17. omply with the regulations of the local power supply authorities and with the standards of the electric appliances Pipelines connection for Split type quick coupler model If you purchase the machine for split type quick coupler model please adopt the following pipeplines connection procedures 1 Remove the dust caps from the indoor and outdoor units and the connecting pipe 2 Align the joint counter of connecting pipe with the proper indoor and outdoor joint conic surfaces tighten the connecting nut manually Then make it secure with a wrench as shown Fig 7 applying to above torque Table 1 Torque wrench Nut of Fig 7 3 Remove the two valve core caps from the outdoor unit 4 Turn on the high and low pressure valve cores with an socket wrench then tighten the two valve core caps Ac TVA wrapping with insulating cotton of the outdoor unit Fig 8 Low pressure valve 5 Finally wrap the hot insulating cotton around the a kee a a A agd High joints of indoor and outdoor units Fig 8 Notes on installation of quick coupler Table 3 Minimum bending radius 1 Connecting pipe bending minimum radius parameters Normial Minimum bending Li it Table 3 diameter mm radius mm cooling capacity ee ce 2 Quick coupler assembly and disassembly limit DNIOTZ E Sane i i i i 1 2 9000 18000BTU the assembly and disassembly times are inadvisably one TET eee more than 7 5 8
18. oo if it is abnormal you should detect the leakage and then welding P4 high the outside and adding refrigerant ambient emperature 2 Check whether the ambient emperature is too high or too low over temperature when the emperature is more than 20 degrees and less 55 switch off the degrees it can disappear automatically compress or shell 3 Check whether emperature switch of compressor is damage temperature module it should be replaced if it is damaged temperature over temperature 1 Check whether the supply voltage is out of ranging from 150 to The outdoor unit DC 270V P7 generatrix voltage is 2 Check the voltage detection circuit of the IPM base board is abnormal abnormal if it is abnormal the IPM base board or the electric control board should be replaced 1 Check whether the high and low pressure valves have been opened otherwise open the valves 2 Check whether the indoor coil pipe temperature sensor is normal P8 Lack refrigerant if it is abnormal the sensor should be replaced or reverse valve fault 3 Check whether the indoor coil emperature sensor hung in the air please plug it in a correct position if the indoor coil emperature sensor hung in the air 4 Check the system pressure is abnormal if it is abnormal yon should detect leakage and the welding and adding the refrigerant 5 Please change the outdoor PCB board if all above analysises are normal DC inverter single split series fail
19. protection Quick connector installation instruction This sheet only guides the requirements of the installation for stainless quick connector pipe Other installation requirements please refer to the installation guide along with the unit e To expand the connecting pipe please hold one side then expand it following the right direction e Please insure the angles have a radian at some extent while intalling the stainless soft pipe Angels need to be around not bended to the quick connecting spot and drilled point of wall e Please fix the stainless soft pipe while installing because the connecting pipes are soft so that prevent them from getting bended or stretched The minimum bending radius are as follows SEUSS EOU HE Model Minimum bending radius mm p Eight Twenty one Twenty five Eighty mm Ten Thirty five One hundred mm Thirteen fifty one One hundred and fifteen mm installation Guide To keep the allowed bending radius please make the packed soft pipes vertical for expanding Please do not expand only one side of the packed soft pipes Please make use of semicircle pulley to keep the allowed bending radius oO f Extremely bending could damage the pipes Please use twisting wheel to avoid improper bending lt gt na io Whe SALS Over length soft pipes will lead to irregular bending Please use rigid elbow to keep the
20. r DC motor fault 1 Check the resistance value of the DC motor port If it is short circuit please change the DC motor 2 Check the voltage value of the DC motor port VCC 15Vdc Vdm 340Vdc please change the PCB board if the voltage values are abnormal 3 if all the voltage values of the DC motor port are normal the Vsp voltage 0 5v is also ok it shows that the inner PCB board of the DC motor is damaged then change the DC motor dF Defrosting state The unit is in defrosting state that is normal dl Mode conflict When the running mode for No 1 indoor unit is different from No 2 indoor unit the dF is displayed Thg malfunction The malfunction The reason of fault and solution 1 Check whether the connection of the compressor is reliable otherwise connect firmly again 2 Check whether the fixation between the IPM module and the The outdoor unit A ar P2 inverter module radiator is firm protection fault 3 Check whether the compressor is well otherwise replace it 4 Check whether the IPM module is abnormal otherwise replace it 1 Check whether the ambient temperature exceeds the operation P3 Over current of range for the air conditioner outdoor unit 2 Check whether the current detection circuit is abnormal the electric control should be replaced when it is abnormal The Ddischarge emperature_ of 1 Check whether the pressure is normal when the unit is running compressor is t
21. r inlet or outlet of the unit To avoid too much oil smoke or steam To avoid possible generation inflow lingering or leakage of flammable gases To avoid high frequency facilities such as high frequency arc welders etc To avoid the places where acid solutions are frequently used To avoid the places where some special sprayers sulfides are frequently used Not to install on top of the musical instruments TV computer etc valuable appliance Not to install a fire alarming device near the air outlet of the unit during operation the fire alarm device might be erroneously triggered by the warm air from the unit E Make sure of enough space for installation and maintenance To take into consideration the operational convenience and safety in installation it is recommended to ensure enough space between the unit and the walls Ceiling Above 100mm 4 ae ee Left side 150mm 6 and above from wall Right side 150mm 6 and above from wall Wall hanging plate 2300mm 7 6 and above ground Attention If there are some additional function devices to install on the air conditioner Be sure add to the installation space for the function devices E Height limits of indoor and outdoor units Either the indoor unit or the outdoor unit can be higher but the height difference must comply the stated requirements Try to reduce the bending of the piping line as much as possible so as to avoid po
22. s place See Fig 13 E As for the outdoor valve for gas leaking and the dust caps you can preserve them for future possible use on the removal of your air conditioner connection of power cable Fig 14 3 wire pressing plate 1 Remove the drawer of the outdoor unit gt i 2 connect the indoor power and control wires with the matched outdoor wires in accordance fl Drawer screw with the electric schematic diagram and make sure that the connection is firmly done Fig 14 Note Do not connect the wires in a wrong way otherwise electric malfunctions will be caused and even damages to the units will occur The appliance shall be installed in accordance with national wiring regulation If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard The plug shall be accessible after installing the appliance f the model have not plug that a switch which have a contact separation of at least 3 mm in all poles shalled be added in fixed wiring Finishing touches wrap the piplines tightly with ethylene tapes Fix the wrapped pipelines on the exterior wall with clamps Fill in the gaps left over by the pipeline hole and wall hole to prevent rain water from entering Test running Connect to the power source check if the function selection keys on the remote controller are working properly Check if the room temperature
23. s normal otherwise replace it Check whether the sensor wire is short circuit or open circuit and whether the plug is well contacted whether there is welding off or rosin joint on the electric control board repair it if there is any above When the 1 and 2 are both normal then the components or integrated circuit is damaged the electric control board should be replaced Check whether the resistance of sensor is normal otherwise replace it Check whether the sensor wire is short circuit or open circuit and whether the plug is well contacted whether there is welding off or rosin joint on the electric control board repair it if there is any above When the 1 and 2 are both normal then the components or integrated circuit is damaged the electric control board should be replaced F8 Light suction temp sensor of compressor fault 1 2 3 Check whether the resistance of sensor is normal otherwise replace it Check whether the sensor wire is short circuit or open circuit and whether the plug is well contacted whether there is welding off or rosin joint on the electric control board repair it if there is any above When the 1 and 2 are both normal then the components or integrated circuit is damaged the electric control board should be replaced F9 Light discharge temp sensor of compressor fault 1 25 3 Check whether the resistance of sensor is normal otherw
24. sor connecting wire of the protection sensor and the detection circuit are abnormal Check whether the air condition system and pressure suction temp of l are normal 1 Light g compressor 2 Check whether the sensor connecting wire of the protection sensor and the detection circuit are abnormal 1 Check whether the supply voltage is out of rang from a 150 to 270V P7 T j high volt eet Gs Light oh eae 2 Check the voltage detection circuit of the IPM base tecti ee a board is abnormal if it is abnormal the IPM base board or the electric control board should be replaced 1 Check whether the pressure is normal when the unit is P8 8 low presser of gas Pe Light running if it is abnormal should detect the leakage and return protection i welding add refrigerant hich pressure or 1 Check whether the pressure is normal when the unit is 7 3 Light discharge protection running if it is abnormal should detect the leakage and welding add refrigerant 1 Check whether the condenser of outdoor unit is too dirty high temp of and it should be cleaned when it is too dirty PA 10 Light condenser 2 Check whether it is running at bad condition long protection time 3 Check whether senor and wire are normal high temp of 1 Check the outdoor ambient temperature is too high or PC 11 Light outdoor ambient there is heat source around the outdoor unit protection 2 Check whether the sensor and sensor wire are normal PF 12 Light other
25. ssible negative impacts upon the performances of the units outdoor unit Indoor unit 10m 32 10 max Selection of installation positions for outdoor unit To install the outdoor unit at the places which can stand the load of the machine weight and will not cause big vibrations and noises To install the unit at the places not to be exposed to rain or direct sunshine and the places with good ventilation The noises generated from the unit will not affect the neighboring places Do not install the unit on non metal frame Not to install the unit at the places where there might occur the generation inflow stay or leakage of inflammable gases Pay attention to the drainage of the condensed water from the base plate during operations To avoid the air outlet being directly against the wind Detailed space requirements around the outdoor unit 1 When there are obstacles above the unit 100mm 4 min LL 2 When the front air outlet is open 200mm 8 min E Z T Y i y 3B oh A f y y o ies E we 200mm 8 min 300mm 1 min y WTITIVITIT I 4 When there are obstacles at the front and rear sides 100mm 4 min L 1000mm 3 4 min 3 When there are obstacles only in the front air outlet 1 NQ 500mm 1 8 min Space for maintenance Shown as in the following figure Keep the maintenance space in front of the
26. ture sensor fault 1 Check whether the resistance of sensor is normal otherwise replace it 2 Check whether the sensor wire is short circuit or open circuit and whether the plug is well contacted whether there is welding off or rosin joint on the electric control board repair it if there is any above 3 When the 1 and 2 are both normal then the component or integrated circuit is damaged the electric control board should F3 The indoor coil emperature sensor fault 1 Check whether the resistance of sensor is normal otherwise replace it 2 Check whether the sensor wire is short circuit or open circuit and whether the plug is well contacted whether there is welding off or rosin joint on the electric control board repair it if there is any above 3 When the 1 and 2 are both normal then the component or integrated circuit is damaged the electric control board should be replaced F4 Indoor motor fault 1 Check whether the contact of the plug of the motor wire and socket is well Please make sure it is well contacted 2 Check whether the indoor motor has damaged the motor should be replaced when it is damaged 3 Check whether the controllable silicon and other components on the electric control board have damaged replace the controllable silicon or electric control board when they are damaged 4 Check whether the indoor fan is unobstructed when running please fix the indoor fan again when it is obstructed
27. ure code manual LED running lamp flicker times timer lamp flicker times failure The reason of fault and solution Fl Light communication fault ee 2 3 4 Check whether the connection of the outdoor unit and indoor unit is one to one otherwise connect the L N and communication line of the indoor unit and outdoor unit one to one Measure whether the voltage between the zero line and the communication line is 18 V 30AC half wave signal check whether the communication circuit on the indoor and outdoor electric control board has been damaged otherwise replace it Check whether the LED on the outdoor power board has been on otherwise replace the electric control board Check whether the unit is abnormal caused by the external interference if it is then find the interfering source and removes it F2 Light ambient temp sensor fault 1 2 3 Check whether the resistance of sensor is normal otherwise replace it Check whether the sensor wire is short circuit or open circuit and whether the plug is well contacted whether there is welding off or rosin joint on the electric control board repair it if there is any above When the 1 and 2 are both normal then the components or integrated circuit is damaged the electric control board should be replaced F3 F4 Light Light coil pipe temp sensor of indoor unit fault inlet Mid
28. wer 1 5 2 5 Fig 3 3 Installation of drain pipe Install the pipelines of the indoor unit in accordance with the direction of the wall holes Wrap tightly the drain pipe and the pipelines with tape Make sure that the drain pipe is underneath the pipelines Fig 3 When the drain pipe passes the room interior some condensed water might occur to its surfaces if the humidity is very high 4 Installation of indoor unit Pass the connection wires connecting pipelines and drain pipe through the wall hole Hang the indoor unit on the hooks at the top of the wall mounting plate so that the hooks at the bottom of the indoor unit match the hooks of the wall mounting plate Fig 4 Hook supports Bottom hooks Inspections a Check if the hooks at the top and bottom are firmly Figs fixed b Check if the position of the master unit is properly leveled Connecting wit s c The drain pipe should not curve upward Fig 5 x SS d The drain pipe should be at the lower part of the wall 7 No Uj Drain pipe Z pipes Fig 5 Connecting pipe Drain pipe indoor unit the figure of outline and installation dimension installation fixture of outdoor unit Try to ship the product to the installation location in its original package As the gravity center of the unit is not at the installation center special caution should be taken when using
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