Service Manual Table of Contents Part Ⅰ : Technical Information ...............1 1. Summary ........................1 2. Specifications ......................2 2.1 Specification Sheet ......................2 2.2 Operation Characteristic Curve ..................4 2.3 Capacity Variation Ratio According to Temperature ............4 2.4 Cooling and Heating Data Sheet in Rated Frequency .............5 2.5 Noise Curve ........................5 3.
Page 3
Service Manual 9. Maintenance ......................33 9.1 Error Code List .......................33 9.2 Procedure of Troubleshooting ..................40 9.3 Troubleshooting for Normal Malfunction .................53 10. Exploded View and Parts List ..............55 10.1 Indoor Unit ........................55 10.2 Outdoor Unit .........................57 11. Removal Procedure ..................59 11.1 Removal Procedure of Indoor Unit ................59 11.2 Removal Procedure of Outdoor Unit ................64 Appendix:...
Part Ⅰ : Technical Information 1. Summary Indoor Unit: TW09HQ3D6DI Outdoor Unit: TW09HQ3D6DO Remote Controller: YAG1FB2F(WiFi) Indoor unit Outdoor unit Remote Unit model Unit code Indoor unit code Outdoor unit code model model control YAG1FB2F TW09HQ3D6D CB460005700_L71081 TW09HQ3D6DI CB460N05700_L71081 TW09HQ3D6DO CB497W00200_L71081 (WiFi) Technical Information...
Service Manual 2. Specifications 2.1 Specification Sheet Model TW09HQ3D6D Product Code CB460005700_L71081 Rated Voltage 208/230 Power Supply Rated Frequency 50/60 Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 9000 Heating Capacity Btu/h 9000 Cooling Power Input Heating Power Input Cooling Power Current 3.05...
Page 6
Service Manual Model of Outdoor Unit TW09HQ3D6DO Outdoor Unit Product Code CB497W00200_L71081 Compressor Manufacturer/Trademark ZHUHAI LAMDA COMPRESSOR CO., LTD Compressor Model QXAT-B121zE070 Compressor Oil FV50S Compressor Type Rotary Compressor L.R.A. 35.0 Compressor RLA Compressor Power Input 1070 Overload Protector 1NT11L-6233/HPC115/95/KSD115ºC Throttling Method Electron expansion valve Operation temp...
Service Manual 2.2 Operation Characteristic Curve Cooling Cooling Heating Heating Condition Condition Indoor:DB 68°F Indoor:DB81°F WB66°F Indoor air flow:Super High Indoor air flow: Super High Pipe length:24.6 ft Pipe length:24.6 ft Compressor Speed(rps) Compressor Speed(rps) n i l 2.3 Capacity Variation Ratio According to Temperature Cooling Heating Cooling...
Service Manual 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe Inlet and outlet pipe Rated cooling Compressor connecting indoor temperature of heat Fan speed of Fan speed of condition(°F) (DB/WB) Model revolution and outdoor unit exchanger indoor unit outdoor unit...
Service Manual 5. Electrical Part 5.1 Wiring Diagram ●Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●...
Page 12
Service Manual ● Outdoor Unit N(1) 6361000044501 These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Technical Information...
Service Manual 5.2 PCB Printed Diagram Indoor Unit ● Top view Name Neutral wire Needle stand for indoor fan Detecting plate(WIFI ) Up&down swing motor left&right swing motor Interface of temperature sensor Terminal for display board connection Terminal of jumper cap Communication wire 10 Wired controller 11 Fuse...
Page 14
Service Manual Outdoor Unit ● Top view Neutral wire of electric High pressure protection 1 Interface of reactor 9 Earthing wire heater for compressor terminal HPP Interface of electronic Neutral wire of electric Power supply neutral 14 Temp. sensor expansion valver heater for chassis wire Neutral wire of 4-way...
Service Manual 6. Function and Control 6.1 Remote Controller Introduction Buttons on Remote Controller ON/OFF button FAN button MODE button +/- button TURBO button button button CLOCK button TIMER ON/ WiFi TIMER OFF button TEMP button button (before opening cover (after opening cover I FEEL button ON/OFF button...
Page 16
Service Manual 2. FAN button Press this button, Auto, Low, Medium-low, Medium, Medium-high, High speed can be circularly selected. After powered on, Auto fan speed is default. Under DRY mode, Low fan speed only can be set up. Low fan Medium-low fan Medium fan ATUO...
Page 17
Service Manual 2.5 seconds, ten numbers change in the one place of minute, then the one place is constant, ten numbers change in the tens place of minute at 2.5 seconds speed and carry. During 5s blink, press the Timer button, the timer setting succeeds. The Timer On has been set up, repress the timer button, the Timer On will be canceled.
Page 18
Service Manual in every hour, (2) Under the initial presetting temperature17 , after Sleep function started up, the temperature will decrease 1 after 1 decreased, this temperature will be maintained. (3) Under the initial presetting temperature 21 -27 , after Sleep function started up, the temperature will decrease 1 in every hour, after 2 decreased, this temperature will be maintained.
Page 19
Service Manual About Quiet function When quiet function is selected: 1. Under cooling mode: indoor fan operates at notch 4 speed. 10 minutes later or when indoor ambient temperature≤28 indoor fan will operate at notch 2 speed or quiet mode according to the comparison between indoor ambinet temperature and set tem- perature.
Service Manual 6.2 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Cellular/ Home Wi-Fi home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for Users smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version...
Service Manual 6.3 Brief Description of Modes and Functions 1. Temperature Parameters ◆ Indoor preset temperature (T preset ◆ Indoor ambient temperature (T amb. 2. Basic Functions Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory function is avail- able, for the first energization, if the compressor is at stop before de-energization, the compressor will be started without a 3-minute lag;...
Page 22
Service Manual ◆ When compressor is running (not including each malfunction and protection): a.When outdoor ambient temperature≥20°C and indoor fan speed is low or medium, the fan speed will turn to high; if indoor fan speed is high or super high, it will keep the same. b.When outdoor ambient temperature≤18°C, the fan speed will resume set fan speed.
Page 23
Service Manual c.For heating and cooling unit, when 22°C<Tindoor ambient<26°C (for cooling only unit, 22°C<Tindoor ambient<26°C), it will keep the original running mode. If the unit is energized for the first time, it will run in fan mode. ② Protection a.
Page 24
Service Manual 1. In cooling mode: 1.1 When the initial set temperature is16-23°C,the temperature will rise 1°C by every hour after sleep function is set;the temperature will not change after rising 3°C;after running for 7hours,the temperature will decrease1°C and it will not change after that. 1.2 When the initial set temperature is 24-27°C,the temperature will rise 1°C by every hour after sleep function is set;...
Page 25
Service Manual 1. Under heating mode: auto speed under heating or auto heating mode: a. When T ≤T +1°C, indoor fan will operate at high speed; amb. preset b. When T +1°C<T <T +3°C, indoor fan will operate at medium speed; preset amb.
Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself.
Page 27
Service Manual To ensure safety, please be mindful of the following precautions. ●When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant. Any presence of air or other foreign substance in the refrigerant circuit will cause system pressure rise or compressor rupture, resulting in injury.
Page 28
Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.
Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 5 7/8 inch At least 5 7/8 inch Space to the wall Drainage pipe Installation and Maintenance...
Page 30
Service Manual Installation procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...
Service Manual 8.2 Installation Parts-checking 8.4 Requirements for electric connection 1. Safety Precaution Name Name (1) Must follow the electric safety regulations when installing Indoor unit Sealing gum the unit. Outdoor unit Wrapping tape (2) According to the local safety regulations, use qualified Support of outdoor Connection pipe power supply circuit and air switch.
Page 32
Service Manual 5. Connect the Pipe of Indoor Unit (3) Fix the wall-mounting frame on the wall with tapping screws (1) Aim the pipe joint at the corresponding bellmouth.(As show (ST4.2X25TA) and then check if the frame is firmly installed by in Fig.5) pulling the frame.
Page 33
Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe (1) Open the panel, remove the screw on the wiring cover and (1) Bind up the connection pipe, power cord and drain hose then take down the cover.(As show in Fig.11) with the band.(As show in Fig.14) (2) Reserve a certain length of drain hose and power cord for installation when binding them.
Service Manual 8.6 Installation of Outdoor Unit Refer to the following table for wrench moment of force: 1. Fix the Support of Outdoor Unit(Select it according to the actual installation situation) Hex nut diameter(inch) Tightening torque(ft·Ibf) Φ1/4 11.10~14.75 (1) Select installation location according to the house structure. Φ3/8 20.12~29.50 (2) Fix the support of outdoor unit on the selected location with...
Service Manual 2. Leakage Detection Note: (1) With leakage detector: (1) The through-wall height of drain hose shouldn't be higher Check if there is leakage with leakage detector. than the outlet pipe hole of indoor unit.(As show in Fig.25) (2) With soap water: (2) Slant the drain hose slightly downwards.
Service Manual 9. Maintenance 9.1 Error Code List Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator During cooling and drying Possible reasons: High operation, except indoor...
Page 37
Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator When the outdoor unit receive signal of Gathering refrigerant Gathering ,the system will be forced to Nominal cooling mode...
Page 38
Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Decrease Overload or temperature is too All loads operate normally, frequency high;...
Page 39
Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Compressor intermediate Showing during middle cooling or frequence in middle heating test test state During cooling and drying...
Page 40
Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator During cooling and drying operation, compressor will stop Refer to the malfunction analysis System is while indoor fan will operate;...
Page 41
Service Manual Display Method of Indoor Unit Indicator Display (during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes Name 0.5s) Code Display Operation Cool Heating Indicator Indicator Indicator Malfunction of During cooling and drying phase current operation, compressor will stop detection while indoor fan will operate;...
Page 42
Service Manual Display Method of Indoor Unit Indicator Display (during blinking, ON 0.5s and OFF Dual-8 Malfunction A/C status Possible Causes 0.5s) Code Name Operation Cool Heating Display Indicator Indicator Indicator Normal communica- tion OFF 3S Defrosting will occur in and blink heating once...
Service Manual 9.2 Procedure of Troubleshooting Indoor unit 1. Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●...
Page 44
Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Start Turn the fan blades by hand under power-off condition Adjust the motor and blade Whether the fan blades assembly so that rotor can run can run smoothly? smoothly.
Page 45
Service Manual 3. Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● The motor is broken? ●...
Page 46
Service Manual 4. Malfunction of Overcurrent Protection E5 Main detection points: ● Is the supply voltage unstable with big fluctuation? ● Is the supply voltage too low with overload? ● Hardware trouble? Malfunction diagnosis process: Start Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...
Page 47
Service Manual 5. Communication Malfunction E6 Start Cut off power supply. Check if connection line of IDU and ODU and the wire inside electric box are correctly connected. Connect the line Correct connection? according to Malfunction eliminated? wiring diagram. Main board matches Match correctly with display board? Main board of Malfunction eliminated?
Page 48
Service Manual 6. Malfunction of detecting plate(WIFI) JF 5. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected detecting Replace the plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...
Page 49
Service Manual Outdoor Unit 1. Capacity charging malfunction (outdoor unit malfunction) (AP1 below means control board of outdoor unit) Main detection points: ● Detect if the voltage of L and N terminal of XT wiring board is between 210VAC-240VAC by alternating voltage meter; ●...
Page 50
Service Manual (2) IPM protection, phase current overcurrent (the control board as below indicates the control board of outdoor unit) H5/P5 Mainly detect: (1) Compressor COMP terminal (2) voltage of power supply (3) compressor (4) Refrigerant-charging volume (5) air outlet and air inlet of outdoor/indoor unit Troubleshooting: Turn on the unit after energization...
Page 51
Service Manual 3. High temperature and overload protection (E8)(AP1 below means control board of outdoor unit) Main detection points: ● If the outdoor ambient temperature is in normal range; ● If the indoor and outdoor fan are running normally; ● If the radiating environment of indoor and outdoor unit is good. E8 is displayed Normal protection, please If the outdoor...
Page 52
Service Manual 4. Start-up failure (LC) (AP1 below means control board of outdoor unit) Main detection points: ● If the compressor wiring is correct? ● If the stop time of compressor is sufficient? ● If the compressor is damaged? ● If the refrigerant charging amount is too much? Turn on the unit The stop time is not sufficient and If the stop time of compressor...
Page 53
Service Manual 5. Overload and high discharge temperature malfunction Main detection points: ● If the electronic expansion valve is connected well? Is the electronic expansion valve damaged? ● If the refrigerant is leaked? ● The compressor overload protection terminal is not connected well with the mainboard? ●...
Page 54
Service Manual H3 or E4 is displayed 30min after power off the unit If the overload protector SAT is well connected? Under ambient temperature, test the resistance of overload protector with ohmmeter; resistance value should be<1000ohm Connect wire If the wiring terminal FA of electronic according to wiring expansion valve is well connected? diagram...
Page 55
Service Manual 6. Communication malfunction (E6) Main detection points: ● Check if the connection wire and the built-in wiring of indoor and outdoor unit are connected well and without damage; ● If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is damaged? Malfunction diagnosis process: If the unit operates normally before malfunction...
Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor After energization, operation indicator isn’t bright wait for power recovery.
Page 57
Service Manual 4. ODU Fan Motor Can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram firmly...
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
Page 59
Service Manual Part Code Description TW09HQ3D6DI Product Code CB460N05700_L71081 Decorative Strip Front Panel 27230014477 Display Board 300001000042 Filter Sub-Assy 1112208906 Decorative Board (Left) 20192662 Front Case 2002248401 Guide Louver 1051276501 Axile Bush 10542036 Air Louver 1 10512733 Helicoid Tongue 26112512 Left Axile Bush 10512037 Rear Case assy...
Service Manual 10.2 Outdoor Unit The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
Page 61
Service Manual Part Code Description TW09HQ3D6DO Product Code CB497W00200_L71081 Front Grill 01473065 Cabinet 0143303402P Axial Flow Fan 10333022 Fan Motor 1501308507 Clapboard 01233510 Chassis Sub-assy 0280311901P Electrical Heater (Chassis) 76510004 Compressor and Fittings 00103977 Valve Support Sub-Assy 01703242P Right Side Plate 0130510002P Valve Cover 22243005...
Service Manual 11. Removal Procedure Caution: discharge the refrigerant completely before removal. 11.1 Removal Procedure of Indoor Unit 1. Remove filter as s y Front panel Open the front panel. Push the left and right filters to make them break away from the groove on the front case.
Page 63
Service Manual 4. Remove detecting plate and electric box cover2 Remove the screws fixing detecting plate and remove detecting plate. Detecting plate Remove the screws fixing electric box cober2 and remove electric box2. Bottom case Loosen the connection clasps between front case sub-assy and bottom case.
Page 64
Service Manual Indoor tube temperature s ensor Cut off the wire binder and pull out the indoor tube temperature sensor. Screw off one grounding screw. Main Remove the wiring terminals of motor and board stepping motor. Remove the electric box assy. G rounding Screw off the screws that are locking each s c rew...
Page 65
Service Manual G roove R ear case ass y First remove the left side of evaporator from the groove on the rear case assy. Then remove the right side from the clasp on the C lasp rear case assy. Installation and Maintenance...
Page 66
Service Manual Installation and Maintenance...
Service Manual 11.2 Removal Procedure of Outdoor Unit Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. Steps Procedure 1. Remove top cover Remove the screws connecting top cover, left and right side plate, as well as panel, to remove the top top cover cover.
Page 68
Service Manual Steps Procedure 4. Remove left side plate Remove the screws fixing left side plate and condenser support boa rd, to remove the left side plate. left side plate 5. Remove cross fan blade Remove the screw nut fixing cross fan blade, remove the gasket and spring cushion, to remove the cross fan blade.
Page 69
Service Manual Steps Procedure 7. Remove electric box assy electric box cove r Remove screws fixing electric box assy and mid-isolation board, loosen the bonding tie, pull off the wiring terminal, lift to remove the electric box assy. electric box assy 8.
Page 70
Service Manual Steps Procedure flash vaporizer assy 10. Remove flash vaporizer assy Remove the screws connecting mid-isolation board, lift to remove the flash vaporizer assy. 11. Remove four-way valve assy four-way valve assy Welding cut the spot weld of four-way valve assy, compressor air suction/discharging valve and condenser pipe outlet, lift to remove the four-way valve assy.
Page 71
Service Manual Steps Procedure 13. Remove compressor compressor Remove the three feet screwnuts fixing compressor, to remove the compressor. 14. Remove big and small valve assy Remove screws connecting condenser assy and chassis, to remove the condenser assy. Remove the screws fixing big and small valve, to small valve remove the valves.
Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius (℃) Celsius (℃) Celsius (℃) temperature temperature temperature (℉)...
Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...
Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 138.1 18.75 138.2 3.848 208.4 1.071 -0.4 128.6 69.8 17.93 3.711 210.2 1.039...
Page 75
Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 181.4 25.01 138.2 5.13 208.4 1.427 -0.4 171.4 69.8 23.9 4.948 210.2 1.386 162.1 71.6 22.85 141.8 4.773 1.346 153.3 73.4...
Need help?
Do you have a question about the TW09HQ3D6D and is the answer not in the manual?
Questions and answers