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Summary of Contents for Tosot TWH09UB-K3DNA2E
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Page 1: Service Manual
Service Manual U-Grace Serie Please be aware that all product codes beginning with GWH are to be seen as the TOSOT units beginning with TWH. TOSOT units in this manual:... - Page 12 Cooling Heating Condition Condition Indoor:DB 27 WB19 Indoor:DB 20 Indoor air flow: Turbo Indoor air flow:Turbo Pipe length:5m Pipe length:5m Voltage:230V Voltage:230V Compressor Speed(rps) Compressor Speed(rps) Cooling Heating Condition Condition Indoor:DB20℃ Indoor:DB27℃ WB19℃ Indoor air flow: Turbo Indoor air flow: Turbo Pipe length:5m Pipe length:5m...
- Page 13 Indoor side noise when blowing Outdoor side noise when Compressor speed changed Supper High High Middle Indoor fan motor rotating speed Compressor Speed(rps)
- Page 14 Φ55 Φ55 Φ55 Φ55...
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Page 17: Indoor Unit
Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction Accumlator exchanger (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electron Strainer expansion valve COOLING HEATING... - Page 18 POWER ROOM DISPLAY TUBE TEM.SENSOR TEM.SENSOR YEGN W1 BU N(1) W2 BK DISP1 DISP2 ROOM TUBE COM-OUT W3 BN COMP AC-L EARTH-PLATE W4 YEGN JUMP W5 YEGN ELECTRIC BOX EVAPORATOR SWING-UD1 SWING-UD2 HEALTH-L HEALTH-N COOL PLASMA GENERATOR YEGN SWING MOTOR(U.D1) SWING MOTOR(U.D2) FAN MOTOR...
- Page 19 BN(BK) ROOM TEMP. TUBE TEMP. RECEIVER AND BU(WH) FAN MOTOR DISPLAY BOARD SENSOR SENSOR YEGN(GN) DISPLAY POWER EARTH-PLATE W3 YEGN PG PGF ROOM TUBE DISP1 DISP2 YEGN EVAPORATOR AP1 PRINTED CIRCUIT BOARD W1 BU N(1) COM-OUT AC-L W2 BN K_COMP COMP JUMP SWING-UD1...
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Page 20: Fan Motor
COMP. YEGN OUTTUBE OUTROOM EXHAUST COMP TEM.SENSOR TEM.SENSOR TEM.SENSOR θ θ θ YEGN BU YE COMP-W COMP-U COMP-V YEGN OVC-COMP N(1) COMU AC-L1 OFAN1 AC-L2 LX-2 LX-1 FAN MOTOR... - Page 21 Interface of live wire of indoor unit power supply Interface of live wire of 10 11 outdoor unit power supply Fan capacitor Interface of neutral wire Interface of fan Interface of neutral wire for ventilation Interface of neutral wire for cold plasma Interface of live wire for ventilation...
- Page 22 Interface of live wire of indoor unit power supply Interface of live wire of outdoor unit power supply Fan capacitor Interface of neutral wire Interface of live wire for ventilation Interface of neutral wire for cold plasma Interface of neutral wire for ventilation Interface of live wire for cold plasma...
- Page 23 Leading foot 2 of induction Leading foot 1 of induction 4-way valve Electric heating of compressor Electric heating of chassis 10-core communication wire Electronic expansion valve Overload protection Temperature sensor...
- Page 24 Interface 1 of reactor Neutral wire of 4-way valve Communication interface Live wire of electric heating Interface of fan Temperature sensor belt Interface of live wire for 4-way Earthing wire input of power Overload input valve Neutral wire for electric heating three-phase Neutral wire input of power of chassis...
- Page 25 ON/OFF Press it to start or stop operation. Press it to decrease temperature setting. Press it to increase temperature setting. MODE Press it to select operation mode(AUTO/COOL/DRY/FAN/HEAT). Press it to set fan speed. SWING Press it set swing angle. I FEEL (applicable for some models) Press it to set HEALTH or AIR function.
- Page 26 MODE Each time you press this button,a mode is selected in a sequence that goes from AUTO, COOL,DRY, FAN,and HEAT *, as the following: AUTO COOL HEAT* *Note:Only for models with heating function. After energization, AUTO mode is defaulted. In AUTO mode, the set temperature will not be displayed on the LCD, and the unit will automatically select the suitable operation mode in accordance with the room temperature to make indoor room comfortable.
- Page 27 TEMP Press this button, you can see indoor set temperature, indoor ambient temperature on indoor unit's display. The setting on remote controller is selected circuarly as below: no display When selecting " " with remote controller or no display, temperature indicator on indoor unit displays set temperature; When s electing "...
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Page 28: Replacement Of Batteries
Replacement of Batteries 1.Remove the battery cover plate from the rear of the remote controller. (As shown in the figure) 2.Take out the old batteries. 3.Insert two new AAA1.5V dry batteries, and pay attention to the polarity. 4. Reinstall the battery cover plate. ★Notes: ●When replacing the batteries, do not use old or different types of batteries, ●If the remote controller will not be used for a long time, please... - Page 29 Start cooling amb. preset Original working state -2°C preset Stop cooling 6 minutes 3 minutes 6 minutes Compressor Outdoor fan Preset wind speed Indoor fan Stop Freeze...
- Page 32 Full-open degree (Max degree) Full-dose degree P0 (Initial point):0 degree Lower-limit degree...
- Page 33 P4: Minimum + medium cooling and heating P5: Minimum + norminal cooling and heating P6: Minimum + maximum cooling and heating P7: Medium+ norminal cooling and heating P8: Medium + maximum cooling and heating P9: Norminal+ maxiumum cooling and heating Electric heating belt control of condenser When Toutdoor amb.
- Page 34 From entering into defrosting and defrosting is finished, and within 3min after compressor is started up, electric heating belt of chassis operates. When compressor operates for 3min and Toutdoor amb. 3 , electric heating belt stops operation; When Toutdoor amb. 3 , electric heating belt of condenser doesn’t operate. When 1 <Toutdoor amb.<3 .
- Page 35 Start cooling amb. preset Original working state -2°C preset Stop cooling 6 minutes 3 minutes 6 minutes Compressor Outdoor fan Indoor fan Preset wind speed Stop Freeze...
- Page 38 Full-open degree Full-open degree (Max degree) Full-close degree Full-close degree P0 (Initial point): 0 degree Lower-limit degree...
- Page 39 P4: Minimum + medium cooling and heating P5: Minimum + norminal cooling and heating P6: Minimum + maximum cooling and heating P7: Medium+ norminal cooling and heating P8: Medium + maximum cooling and heating P9: Norminal+ maxiumum cooling and heating (15) Compulsory defrosting function 1.
- Page 42 Space to the ceiling 15cm Above Space to the wall 15cm Above Above 15cm Space to the wall 300cm Above Above Air outlet side Space to the floor The dimensions of the space necessary for proper ● installation of the unit include the minimum permissible distances to adjacent parts.
- Page 43 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...
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Page 45: Outlet Pipe
Wall Wall Level meter Mark in the middle of it Space Space to the to the Open-end wrench wall wall above above Union nut 150mm 150mm Pipe Pipe joint Union nut Pipe Torque wrench Right Left Φ55mm Φ55mm Indoor pipe Rear piping hole Rear piping hole Insulating pipe... - Page 46 Panel Screw Wiring cover Indoor and outdoor power cord Indoor unit pipe Liquid pipe Band Drain hose connection wire sleeve Drain hose Connection pipe Band Indoor power cord Cooling and heating unit blue black brown yellow- green Connect to outdoor unit Wiring board ( 1 ) Wire clip...
- Page 47 N(1) yellow- blue black violet green Connect to indoor unit Wiring boar d Grounding wire ( 1 ) Drain vent Chassis Outdoor drain join t Wire clip Drain hose Handle At least 3cm above the floor Note: the wiring connect is for reference only, please refer to the actual one Foot holes screw...
- Page 48 The drain hose can't be fluctuant The water outlet can't be placed The drain hose in water can't be fluctuant The water outlet can't be fluctuant Liquid valve Piezometer Gas valve Valve cap Refrigerant charging vent Nut of refrigerant Charging vent Vacuum pump Inner hexagon spanner...
- Page 55 Troubleshooting for F1,F2 malfunction the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? Insert the temperature sensor tightly Is malfunction eliminated Is there short circuit due to trip - over of the parts? Make the parts upright Is malfunction eliminated Is the...
- Page 56 Troubleshooting for H6 malfunction Stir the blade with a tool to see whether the blade rotates smoothly Tighten the screw; reassemble the blade, motor and shaft bearing rubber base sub-assy to make sure there is no foreign object between them Is malfunction eliminated Is the...
- Page 57 Troubleshooting for C5 malfunction Appearance of Is there jumper cap on the the jumper cap mainboard ? Assemble the jumper cap with the same model Is malfunction eliminated the jumper cap inserted correctly and tightly ? Insert the jumper cap tightly Is malfunction eliminated...
- Page 58 Troubleshooting for E5 malfunction Is the supply voltage unstable Normal fluctuation is within 10 % of the rated Malfunction is with big fluctuation? voltage on the nameplate eliminated Is the supply voltage too low Malfunction is Adjust the supply voltage to maintain it within Malfunction is with overload? eliminated...
- Page 59 Troubleshooting for U8 malfunction Re-energize1 minute after de-erergization The unit returns to normal. Conclusion:U8 is displayed due U8 is still to instant energization afte de- displayed energization while the capacitor discharges slowly. The zero-cross detection circuit of the mainboard is defined abnormal.Replace the mainboard with the same model...
- Page 60 Turn on the unit and wait 1 minute Use AC voltmeter to measure the voltage on the two ends of electrolytic capacitor (see fig 30) Malfunction of Replace outdoor Voltage higher the outdoor mainboard than 200V? mainboard AP1 Measure the voltage input with AC voltmeter (see fig 30) Power supply is...
- Page 61 H5, H7 or P5 is displayed after turning on the unit Measure if the voltage The unit starts Repair power supply to make input is within 180~265V Restart the unit operation again the power voltage normal with AC voltmeter (see fig 30) The compressor Adjust it properly The unit starts...
- Page 62 E8 is displayed Normal protection, please If the outdoor Unit restarts use it after improving the ambient temperature is higher normally outdoor ambient temperature than 53℃? Improve the radiating environment If the radiating of indoor of unit (clean the heat exchanger Unit restarts and outdoor unit is good? and remove surrounding obstacles)
- Page 63 Turn on the unit The stop time is not sufficient and If the stop time of compressor the high and low pressure of system is more than 3min? is not balanced , please start the unit after 3min Check the connection situation of outdoor mainboard AP1 and If the compressor wire compressor COMP, and the...
- Page 65 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 66 start If power plug is connected Is the malfunction Connect the plug correctly well with the socket eliminated? Check the connection wire between reactor mainboard and situation of connection Reconnect the wire or Power on and If there is short circuit or the replace the connection Is the malfunction restart the unit...
- Page 67 If the unit operates normally before malfunction Check the connection wire according to the wiring diagram. Check built-in wiring If the connection wire of indoor and outdoor is connected well? unit Reconnect the wire or Replace the If the wiring is replace the connection wire damaged?
- Page 76 40 Power Cord 电 源线 39 Connecting Cable 橡 套软线 38 Temperature Sensor 37 Remote Controller Box 电 器盒 感温包 遥控器 36 Electric 35 Magnetic Ring 磁环 34 Wire Clamp 固线夹 33 Terminal Board 接线板 32 Main Board 主板 31 Electric Box Cover2 30 Display Board...
- Page 78 40 Power Cord 电 源线 39 Connecting Cable 橡 套软线 38 Temperature Sensor 37 Remote Controller 36 Electric Box 电 器盒 35 Magnetic Ring 磁环 34 Wire Clamp 固线夹 33 Terminal Board 接线板 32 Main Board 主板 31 Electric Box Cover2 30 Display Board...
- Page 82 24 25...
- Page 92 Steps Procedure 1.Remove big handle Before disassembly. Remove the connection screw fixing the big handle handle and then remove the handle. 2. Remove top cover top panel Remove connection screws connecting the top cover plate with the front panel and the right side plate, and then remove the top panel.
- Page 93 Steps Procedure 3.Remove grille 、 axial flow blade and front panel Remove connection screws between the front grille and the front panel. Then remove the front grille. Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel.
- Page 94 Steps Procedure 6.Remove 4-way valve assy 4-way valve assy Unscrew the fastening nut of the 4-way valve assy coil and remove the coil. Wrap the 4 way Valve Assy with wet cotton and unsolder the 4 weld spots connecting the 4-way valve assy to take it out.(Note: Refrigerant shouldbe discharged firstly.) Welding process should be as quickly as possible and keep wrapping...
- Page 95 Steps Procedure 9.Remove the valves Remove the 2 screws fixing the gas valve and unsolder the welding point between the gas valve and the air-return pipe to remove the gas valve. Remove the 2 screws fixing the liquid valve and unsolder the welding joint connecting the liquid valve to the Y-type pipe to remove the liquid valve.
- Page 103 Pipe Pipe cutter Leaning Uneven Burr Pipe Shaper Downwards Union pipe Pipe Hard mold Expander Pipe Smooth surface Improper expanding damaged leaning crack uneven surface thickness The length is equal...
- Page 104 Temp( ) Resistance(kΩ) Temp( ) Resistance(kΩ) Temp( ) Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009 16.39 3.454 0.98 108.7 15.68 3.333 0.952 102.9 3.217 0.925 97.4 14.36 3.105 0.898 92.22 13.74 2.998 0.873 87.35 13.16...
- Page 105 Temp( ) Resistance(kΩ) Temp( ) Resistance(kΩ) Temp( ) Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2 4.289 1.233 129.9 19.14 4.14 1.198 18.13 3.998 1.164 116.5 17.55 3.861...
- Page 106 Temp( ) Resistance(kΩ) Temp( ) Resistance(kΩ) Temp( ) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.754 799.8 93.42 17.65 4.609 89.07 16.99 4.469 703.8 84.95 16.36 4.334 660.8 81.05 15.75 4.204 620.8 77.35 15.17 4.079 580.6 73.83 14.62 3.958 548.9 70.5 14.09 3.841 516.6 67.34...
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