Service Manual
Contents
1. 20 6 7 Re installation while the outdoor unit need to berepnared 22 24 Eed e ae e Leit eu RE 25 ai neat 25 SPADE e E 8 En 25 e e e nm ML CE 26 8 4 Operation 29 9 44 OA Indoor Unit Emor uUam istuc 44 9 2 DIAGNOSIS and SOON EE E D 45 1 Precaution 1 1 Safety Precaution B To prevent injury to the user or other people and property damage the following instructions must be followed B Incorrect operation due to ignoring instruction will cause harm or damage B X Before service the unit be sure to read this service manual at first 1 2 Warning Installation B Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock B For electrical work contact the dealer seller a q2. Electrolytic Capacitors HIGH VOLTAGE CAUTION Connect discharge resistance approx 100Q 40W or soldering iron plug between terminals of the electrolytic capacitor on the contrary side of the outdoor PCB Discharging position Discharging period 10 seconds more Plug of d soldering 1177 Iron nd Note The picture above is only for reference The plug of your side may be different Main parts check 1 Temperature sensor checking Disconnect the temperature sensor from PCB measure the resistance value with a tester Tester o4 Temperature Sensors Room temp T 1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor discharge temp T5 sensor Measure the resistance value of each winding by using the multi meter Table 1 Some frequently used R T data for T1 T2 T3 and T4 sensor Resistance Value Resistance Value KQ lura bae a 5 2 Table 2 Some frequently used R T data for T5 sensor Resistance Value KO Value Resistance Value KO 141 6 88 Resistance value KQ Ae x Temperature C 55
3. T4 CoolTAZoneb5l 50 N Cool T4ZoneA4l 44 CoolT4Zone3l 33 a 420 11 31 8 4 2 2 Outdoor fan running rules Cooling i A 28 13 23 c gt 20 B 3 19 47 While A B C means different fan speed of outdoor unit 8 4 2 3 Indoor fan running rules In cooling mode indoor fan runs all the time and the speed can be selected as high medium low auto and silent When the compressor is running the indoor fan is controlled as below speed tri CH Cri tri co LI I 32 The auto fan acts as below rules For 240 IVP 1 4 27 5 Medium 25 5 25 Y Low For other models 1 T1 Ts gt 6 0 H 5 0 lt d m ien 28 L 0 5 4 0 V umm a 0 25 L 0 8 8 4 2 4 Condenser temperature protection 55 C lt T3 lt 60 C the compressor frequency will decrease to the lower level until to F1 and then runs at F1 If T3 lt 54 C the compressor will keep running at the current frequency 3 52 C the compressor will not limit the frequency and resume to the former frequency 13 gt 60 C for 5 seconds the compressor will stop until T3 lt 52 C 8 4 2 5 Evaporator temperature protection 2 0 C the compressor will stop and restart when T2 gt 5 C 0 CST2 lt 4 C the compressor frequency will be limited and decreased to the lower level 4 C lt T2 lt 7 C the compressor will keep
4. Indoor unit DE Liquid side if ww Outdoor unit 2 way valve y 5 m fm valve Se Ll d DO Charging cylinder X Electronic scale Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is RA10A make the cylinder bottom up to ensure the liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant 18 6 When the electronic scale displays the proper weight refer to the table disconnect the charge hose from the 3 way valve s service port immediately and turn off the air conditioner before disconnecting the hose 7 Mount the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage 6 5 Adding the refrigerant after running the system for many years bah away D TI B 1 s
5. TOYOTOMI b service Manual MODEL TPN A128 IVP TPG A128 IVP TPN A135 IVP TPG A135 IVP TPN A180 IVP TPG A180 IVP TPN A240 IVP TPG A240 IVP CONTENTS t P 3 E RE M P 3 SZ VV AMIN RUE 3 AM FUNC UOM 552540 25525555 7 Cm Pie reece came eaten on 8 e 8 UM eet TT 8 0 0 ee 48 9 Cycle RTE Lu eec 10 Be Wiring 11 21 11000 2 PE UM 11 SA elei a A 12 ZU de e RU rg LS 14 6 1 Wrench torque sheet for instalation 14 6 2 al EE 14 6 3 Pipe length and the elevation 15 6 4 Installation for the first 16 6 5 Adding the refrigerant after running the system for many years 19 6 6 Re installation while the indoor unit need to be
6. 1308 6 We 69 G9 G9 C9 INDOOR UNIT L len 316 KEE get Ui 1 mies ty 999 E OUTDOOR UNIT TPN A240 IVP SW IMG Mi 121 ON 8 WVL 202033091043 Ho DEE 1153 2 008411 341 p JS OPTIONAL we ONIZER COM IN 5 MAIN BOARD a x INDOOR UNIT 1 NOTE As the standby control needs the cross section area of cable connected to L 1 1 2 N must be selected to suit the maximum system current The maximum system current is equal to the OUTDOOR UNIT sum of indoor unit and outdoor unit rated current 11 5 2 Outdoor Unit TPGA128IVP AMBIENT HEAT EXCHANGER 202037391294 SENSOR OPTIONAL 00 OLP TEMP SENSOR DISCHARGE SENSOR e YELLOW 109 LS INDOOR UNIT POWER SUPPLY Q KE up BLUE 10N2UU RED 1087 K al 10 gm 6 W59 19 T HEATER 4 CN13 86 NN HEATER 2 OPTIONAL HEATER TPG A135 IVP TPG A180 IVP TONAL ENE HEAT EXCHANGER SENSOR 202037391220 DPANSNEVALVE BLACK DISCHARGE SENSOR Cd SENSOR 6 5 OOOOO00 YG YELLOW BLUE BLUE RED F BLACK R BLUE CE KFR26W BP3 PFC 120 D 13 MP 2 n NER T STEW via IEEE
7. 45 9 2 2 Indoor unit and outdoor unit communication protection error diagnosis and solution E1 Power off then turn on the unit 5 seconds later reconnect the power wire Is the error still displaying after several minutes Yes Y Check all the wirings between indoor and outdoor indoor main PCB and outdoor main PCB following the wiring diagram Are all the wirings connected correctly Yes Y Measure Vs is it moving alternately between positive value and negative value Vs is the voltage between 5 and N of outdoor unit Yes v Y Is the wiring to the outdoor main Is the wiring to the indoor main PCB connected correctly PCB connected correctly Yes Yes Y Y Change the outdoor main PCB Change the indoor main PCB Power on Is the error extinguished Power on Is the error extinguished NO NO L L Change the indoor main PCB Change the outdoor main PCB 46 9 2 3 Zero crossing detection error diagnosis and solution E2 Check if the connections and power supply is normal Yes v main PCB Indoor main PCB is defective Replace indoor No Correct the connections Turn on the unit when the power supply is good 9 2 4 Indoor fan speed has been out of control diagnosis and solution E3 Shut off the p
8. Check valve Ga A T d E emm 2 s Charging cylinder Ld 21 Electronic scale Procedure 1 Connect the charge hose to the 3 way service port open the 2 way valve and the 3 way valve Connect the charge hose to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant 19 6 When the electronic scale displays the proper weight refer to the gauge and the pressure of the low side disconnect the charge hose from the 3 way valve s service port immediately and turn off the air conditioner before disconnecting the hose 7 Mount the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage 6 6 Re installation while the indoor unit need to be repaired 1 Collecting the refrigerant into the outdoor unit indoor unit Y 22 Liquid side Es EE Procedure 1 Confirm that both the 2 way and 3 way valve
9. EN B ES EN 1 5 1 0 Bo 5 40 5 A 5 While the zones of A B C are corresponding to different compressor running frequency AT 0 C as default Note When T1 Ts keeps in the same temp zone for 3 minutes the compressor will run as the below rules A Increase the frequency to 3 grade higher until to FREMAX B E Increase the frequency to 2 grade higher until to FREMAX F G Increase the frequency to 1 grade higher until to FREMAX H Keep the current frequency I Decrease the frequency to the 1 grade lower until to F1 J Run at F1 for 1h if T1 Ts AT gt 6 C the compressor will stop 35 Meanwhile the compressor running frequency is limited by the current 121 31 amp Tm NS T4 HeatT4Zone4l e X HeatT4Zone3l 10 5 A HeatTAZone2l 6 0 N HeatT4Zone Y 8 4 3 2 Outdoor fan running rules Heating 1 4 2 A 21 Vs 19 D 18 A t gt 8 4 3 3 Indoor fan running rules In heating mode indoor fan can be selected as high medium low auto and silent The anti cold wind function is preferential The running rules of anti cold wind function depend on both T1 and T2 that is more comfortable control When the compressor is running the indoor fan is controlled as below 36 Actual fan speed H 3 H H H G 7 1 v i E n L L L D 1411 41 01
10. Is it in 220V 400V Yes v Replace outdoor mainl PCB Replace the IPM board if it is separate with main PCB 52 9 2 10 Inverter compressor drive error diagnosis and solution P4 Check if the wiring between main PCB and compressor connected by Correct the connection or Yes error and if the wires and connectors are broken No v v replace the wires and connectors Correct the installation Check if the IPM installed correctly Yes v IPM continuity check Check if the No No y tighten the screws and apply silicon grease IPM terminal resistance values are uniform Yes Y No ventilation is good Yes y Check if the compressor resistance No values are uniform Yes Replace the outdoor main PCB if the main PCB and IPM are separate Check if the outdoor fan runs properly or the outdoor unit 53 v Replace the IPM board or replace the main PCB if the IPM board and main PCB are integrated together Refer to the solution of fan speed has been out of control malfunction Find out the cause and have it solved Replace the compressor Safety Electricity power is still in capacitors even the power supply is shut off Do not forget to discharge the electricity power in capacitor
11. m pum N Manifold valve c Jl Close Compound meter PA LAM 2 Pressure Be 2 fuas qr gauge C 0 1 Sch Hi lt Handle Lo E gm Handle 2 1 7 Charge hose 7 Charge hose E N Vacuum CJ s Vacuum l pump 1 Completely tighten the flare nuts of the indoor and outdoor units confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Connect the charge hose of handle hi connection to the vacuum pump 4 Fully open the handle Lo of the manifold valve 5 Operate the vacuum pump to evacuate 6 Make evacuation for 30 minutes and check whether the compound meter indicates 0 1Mpa If 16 the meter does not indicate 0 1Mpa after pumping 30 minutes it should be pumped 20 minutes more If the pressure can t achieve 0 1Mpa after pumping 50 minutes please check if there are some leakage points Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump Confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 7 Turn the flare nut of the 3 way valves about 45 counterclockwise for 6 or 7seconds after the gas coming out then tighten the flare nut again Make sure the pressure display in the pressure indicator is a little higher than the atmosphere pressure Then remo
12. 24 setting temperature Forced auto mode The action of forced auto mode is the same as normal auto mode with 24 C setting temperature 8 4 7 Timer function 8 4 7 1 Timing range is 24 hours 41 8 4 7 2 Timer on The machine will turn on automatically when reaching the setting time 8 4 7 3 Timer off The machine will turn off automatically when reaching the setting time 8 4 7 4 Timer on off The machine will turn on automatically when reaching the setting time and then turn off automatically when reaching the setting off time 8 4 7 5 Timer off on The machine will turn off automatically when reaching the setting off time and then turn on automatically when reaching the setting on time 8 4 7 6 The timer function will not change the AC current operation mode Suppose AC is off now it will not start up firstly after setting the timer off function And when reaching the setting time the timer LED will be off and the AC running mode has not been changed 8 4 7 7 The setting time is relative time 8 4 8 Sleep function mode 8 4 8 1 Operation time in sleep mode is 7 hours After 7 hours the AC quits this mode and turns off 8 4 8 2 Operation process in sleep mode is as follow When cooling the setting temperature rises 1 C be lower than 30 C every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed as low speed When heating the setting temperature decreases 1 C be high
13. If the compressor stops caused by the room temperature rising the indoor fan will be forced to run 127 seconds with breeze During this period the anti cold wind is disabled Auto fan action in heating mode For 240 IVP T1 Ts 4 Low 25 2 0 Medium 1 5 g 1 0 No High Y For other models 1 T1 Ts 4 gt 00 d An LUN LL 25 NI H L 0 24L B NC H L 0 4 L ps X H L 0 6 L So H L 0 6 L 60 H L 0 8 L 6 5 37 8 4 3 4 Defrosting mode Condition of defrosting If any one of the following items is satisfied AC will enter the defrosting mode After the compressor starts up and keeps running mark the minimum value of T3 from the 10th minutes to 15th minutes as T30 II the compressor cumulate running time is up to 29 minutes and 3 lt TCDI1 T30SUBT30ONEST30 2 f the compressor cumulate running time is up to 35 minutes and T3 lt TCDI2 T3OSUBT3TWOSTS30 AUT the compressor cumulate running time is up to 29 minutes and T3 TCDI3 for 3 minutes A the compressor cumulate running time is up to 120 minutes and T3 15 C Condition of ending defrosting If any one of the following items is satisfied the defrosting will finish and the machine will turn to normal heating mode T3 rises to be higher than TCDE1 C T3 keeps to be higher than TCDE2 C for 80 seconds The machine has run for 10 minutes i
14. This indicator illuminates when the air conditioner is running Timer indicator This indicator illuminates when TIMER is set ON OFF 25 8 3 Main Protection 8 3 1 Time delay at restart for compressor 1 minute delay for the 1 time start up and 3 minutes delay for others 8 3 2 Temperature protection of compressor top The unit will stop working when the compressor top temp protector cut off and will restart after the compressor top temp protector restart 8 3 3 Temperature protection of compressor discharge When the compressor discharge temp is getting higher the running frequency will be limited as below rules Compressor discharge temp T5 gt 115 C for 5s compressor stops and restarts up till T5 lt 90 C 110 lt 5 lt 115 decrease the frequency to the lower level every 2 minutes 105 lt T5 lt 110 C keep running at the current frequency 15 lt 105 C no limit for frequency 8 3 4 Fan Speed is out of control When Indoor Fan Speed keeps too low 300RPM for certain time the unit will stop and the LED will display the failure 8 3 5 Inverter module protection The Inverter module has a protection function about current voltage and temperature If these protections happen the corresponding code will display on indoor unit and the unit will stop working 8 3 6 Indoor fan delayed open function When the unit starts up the louver will be active immediately and the indoor fan will open 10s later If t
15. the current frequency 12 7C the compressor frequency will not be limited 33 8 4 3 Heating Mode 8 4 3 1 Compressor running rules The maximum operation frequency of the compressor after starting submits to the following rule 28 27 25 24 21 19 18 17 16 15 14 12 11 8 11 12 15 16 KH e Fmax T4FREHEATMAX1 Fmax T4FREHEATMAX2 Fmax TAFREHEATMAX3 Fmax TAFREHEATMAXA 5 Fmax T4FREHEATMAX7 8 FmaxcTAFREHEATMAX9 Fmax F21 Fmax F22 Fmax F23 Fmax F24 Y Fmex F25 34 Meanwhile the maximum frequency is limited by the indoor fan speed Indoor fan speed Maximum frequency High speed 8 degree heating turbo function Medium speed FHeatMaxMidFan Low speed sleep mode FHeatMaxLowFan Silent mode Fixed at F3 If users switch on by remote controller the compressor will run at the Fmax frequency for 7 minutes according to outdoor ambient temp During the 7 minutes the frequency limitation is active 7 minutes later the compressor running frequency will be controlled as below T1 Ts 4 M M de De e kb NS MV S S XN 44 0 H gt 3 0 QE C EM S N ES lt 5 Ki
16. 15 minutes and then choose mode according to T 1 Ts If the setting temperature is modified the machine will choose running function again 8 4 5 Drying mode 8 4 5 1 Indoor fan speed is fixed at breeze and can t be changed The louver angle is the same as in cooling mode 40 8 4 5 2 Compressor running rules T1 Ts 1 2 5 F7 2 0 1 5 F5 1 0 0 5 F3 0 0 F1 8 4 5 3 Low indoor room temperature protection In drying mode if room temperature is lower than 10 C the compressor will stop and not resume until room temperature exceeds 12 C 8 4 5 4 Evaporator anti freezing protection condenser high temperature protection and outdoor unit frequency limit are active and the same as that in cooling mode 8 4 5 5 The outdoor fan operates the same as in cooling mode 8 4 6 Forced operation function 8 4 6 1 Enter forced operation function When the machine is off pressing the touch button will carry the machine to forced auto mode If pressing the button once again within 5 seconds the machine will turn into forced cooling mode In forced auto forced cooling or any other operation mode pressing touch button will turn off the machine 8 4 6 2 In forced operation mode all general protections and remote control are available 8 4 6 3 Operation rules Forced cooling mode The compressor runs at F2 frequency and indoor fan runs as breeze After running for 30 minutes the machine will turn to auto mode as
17. Check if T2 sensor is well fixed Correct the installation or replace T2 sensor Does the problem remain again No Y Is there any leakage Especially the connection parts such as the gas valve and the liquid valve Yes Y Replace indoor PCB No v Repair the leakage and recharge the refrigerant Is there any blocking Such as the capillary or the welded points of the pipes Yes y Clear the blocking 49 9 2 7 Outdoor fan speed has been out of control diagnosis and solution F5 Shut off the power supply and turn it on 5 seconds later Is it No The unit operates normally still displaying the error code Yes Shut off the power supply rotate the fan by hand Does No Replace outdoor fan motor it rotate properly A Yes v Check the wires of fan motor Correct the connections Are all the connections good Yes v Replace outdoor main PCB Is it still displaying the error code Yes 50 9 2 8 IPM malfunction or IGBT over strong current protection diagnosis and solution PO Check if the wiring between main Correct the connection or PCB and compressor connected by Yes gt replace the wires and error and if the wires and connectors connectors are
18. SSA Qum 2 More than 30cm RES MIS 2 2 S 74 es Pa y DD Y 6 e o gt fe Lon More than 60cm 4 11 More than 70cm 77 Air inlet l P Air inlet W1 TPG A128 IVP 250 TPG A135 IVP 250 7 8 80 4 Refrigerant Cycle Diagram INDOOR OUTDOOR 4 CHECK VALVE LIQUID SIDE Heating Model only 4 22 Md EN gt 2 WAY VALVE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER A ii GAS SIDE 4 i v ie VA NI A SH Ge Oe ver 3 WAY VALVE REVERSING VALVE MN Heating Model only ACCUMULATOR A K 4 COOLING COMPRESSOR 4 HEATING 10 5 Wiring Diagram 5 1 Indoor Unit TPN A128 IVP TPN A135 IVP TPN A180 IVP 202032591215 NOTE If used as MONO unit for the standby control needs the cross section area of cable connected to L 1 1 2 N must be sufficient for the maximum system current The maximum system current is equal to the sum of indoor unit and outdoor unit rated curent If used as MULTI unit L 1 on the terminal block does not need to be connected TONAL C ge SWIMG MOTORI OPTIONAL Ge OPTIONAL Le HEATER 1 Wire Contoller O 2 Loi 311 ACN am
19. YIG L N UNIT TO INDOOR UNIT POWER SUPPLY bg C JC r T B i F CNG Cum is used in the Q C Cooling 8 Heating unit only 1 OPTIONAL HEATER T Dewmcp Ee PO heater 1 E REACTOR R1005 R20035 OUTDOOR WIRING DIAGRAM 12 TPG A240 IVP 202038090849 IPM BOARD HEATI DAT 241 J cz 046 NB OPT OHAL 13 ELE TENE EXPAREIWE OUTDOOR AMBIENT E T TEMPERATURE SENSOR 113 CONDENSER TEMPERATURE SENSOR 0 DISONKE 8 A SmE 1111 4511 8 Ol 11 P 10 MDQ08 UNIT POWER SUPPLY 6 Installation Details 6 1 Wrench torque sheet for installation 012 7 3500 357kgf cm 3600 367kgf cm 15 9 4500 459kgf cm 4700 479kgf cm 6500 663kgf cm 6700 683kgf cm 6 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross sectional area mm The cable size and the current of the fuse or switch are determined by the maximum current indicated on the nameplate which located on the side panel of the unit Please refer to the nameplate before selecting the cable fuse and switch 14 6 3 Pipe length and the elevation The pipe length and refrigerant amount Pipe size Standard Max Additional Model le
20. broken No Y Correct the installation Check if the IPM installed correctly gt tighten the screws and apply silicon grease Yes y IPM continuity check Check if the Replace the IPM board or replace the main PCB if the IPM board and uniform main PCB are integrated together Yes Y Refer to the solution of fan speed Check if the outdoor fan runs has been out of control v IPM terminal resistance values are No E mE No malfunction Find out the cause 9 i and have it solved Yes y Check if the compressor resistance values are uniform Yes Replace the outdoor main PCB if the main PCB and IPM are separate No gt Replace the compressor 51 9 2 9 Over voltage or too low voltage protection diagnosis and solution P1 Check if the power supply is No normal Yes v Check if all the connections No and wires are good Yes v Power on and when the unit is in standby check if the voltage between P and N is around DC 310V or 340V or 380V For different Disconnect the unit with power supply and try to restart the unit when power supply gets normal Correct the connections replace the wires kinds of units the voltage differs No Consult with technical engineer to get definite value Then start up the unit measure the voltage between P
21. e or disassemble the batteries Do not dispose of batteries in a fire They may burn of explode B Ifthe liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote of the batteries have leaked 2 Function Model Names of Indoor Outdoor Units o TPN A128 IVP TPG A128 IVP TPN 135 IVP TPG A135 IVP TPN A180 IVP TPG A180 IVP TPN A240 IVP TPG A240 IVP Filter Killer of Formaldehyde 1W standby lonizer O 8 degree heating O Silver Ico Filter O Heat compensation O Vitamin C Filter O Self diag function 3M HAM Filter O Hydrophilic aluminum fin Bio Filter O Anti rust cabinet Golden Fin O Valve protection cover oelf Clean O PTC Heating Belt O Follow me O Compressor Crankcase Heater O O optional function 3 Dimension 3 1 Indoor Unit 189 196 198 230 y 2 nn 1 ey A 65 250 275 275 315 2 Outdoor Unit More than 30cm gt a More than 60cm Service space be sc WK V 2 E S
22. enser and evaporator fins 5 could cause product malfunction or inefficient operation gt Operational B Do not expose the skin directly to cool air for long time Do not sit in the draft B Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property B Do not block the inlet or outlet of air flow B Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product B Do not touch the metal parts of the product when removing the air filter They are very sharp B Do not step on or put anything on the product outdoor units B Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage B Do not insert hands or other objects through air inlet or outlet while the product is operated B Do not drink the water drained from the product B Use a firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury B X Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion B Do not recharg
23. equency of compressor after starting submits to following rule 1 50 Fmax T4FREMAX1 49 2 45 44 Fmax TAFREMAX3 41 40 32 Fmax T4FREMAX5 20 29 Fmax TAFREMAXG 2 7 Meanwhile the maximum frequency is limited by the indoor fan speed Indoor fan speed Maximum frequency High speed turbo function Silent mode Fixed at F3 If users switch on by remote controller the compressor will run at the Fmax frequency for 7 minutes according to the outdoor ambient temp During the 7 minutes the frequency limitation is active 7 minutes later the compressor running frequency will be controlled as below 30 T1 Ts 3 0 2 5 2 0 0 5 0 0 G 1 0 1 5 While the zones of A B C are corresponding to different compressor running frequency Note When T1 Ts keeps in the same temp zone for 3 minutes the compressor will run as the below rules A Increase the frequency to 3 grade higher until to FREMAX B E Increase the frequency to 2 grade higher until to FREMAX F G Increase the frequency to 1 grade higher until to FREMAX H Keep the current frequency I Decrease the frequency to 1 grade lower until to F1 J Run at F1 for 1h if T1 Ts 2 C the compressor will stop Meanwhile the compressor running frequency is limited by the current
24. er than 17 C every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed as low speed Anti cold wind function has the priority 8 4 8 3 Timer setting is available 8 4 8 4 When user uses timer off function in sleep mode or sleep function in timer off mode if the timing is less than 7 hours sleep function will be cancelled when reaching the setting time If the timing is more than 7 hours the machine will not stop until reaches the setting time in sleep mode 8 4 9 Auto Restart function The indoor unit is equipped with auto restart function which is carried out through an auto restart module In case of a sudden power failure the module memorizes the setting conditions before the power failure The unit will resume the previous operation setting not including swing function automatically after 3 minutes when power returns If the memorization condition is forced cooling mode the unit will run in cooling mode for 30 minutes and turn to auto mode as 24 C setting temp 42 If AC is off before power off and AC is required to start up now the compressor will have 1 minute delay when power on Other conditions the compressor will have 3 minutes delay when restarts 8 4 10 8 C Heating optional In heating operation the preset temperature of the air conditioner can be as lower as 8 C which keeps the room temperature steady at 8 C and prevents household things freezing when the house is unoccupied
25. for a long time in severe cold weather 43 9 Troubleshooting 9 1 Indoor Unit Error Display Operation lamp Display LED STATUS x 1 time Indoor unit EEPROM parameter error EECHER Indoor outdoor units communication error Zero crossing detection error except X 3 times X E2 9 MSR1 24HRDN1 QRC4W Indoor fan speed has been out of control Open circuit or short circuit of indoor room temperature T 1 x times X E4 sensor Open circuit or short circuit of evaporator coil temperature x 6 times X E5 T2 sensor Open circuit or short circuit of outdoor ambient T4 x 2 times temperature sensor Open circuit or short circuit of condenser coil temperature x 3 times T3 sensor Open circuit or short circuit of compressor discharge T5 x 4 times temperature sensor reene nl rss ECCENEMICRCT T NNNM light off x flash 44 9 2 Diagnosis and Solution 9 2 1 EEPROM parameter error diagnosis and solution EO Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Yes Y If the EEPROM chip is welded on main PCB replace the main PCB directly Otherwise check No gt Correct the connection whether the EEPROM chip plugged in main PCB well Yes Y Replace the indoor main PCB EEPROM a read only memory whose contents can be erased and reprogrammed using a pulsed voltage
26. he unit runs in heating mode the indoor fan will be also controlled by anti cold wind function 8 3 7 Compressor preheating functions Preheating permitting condition If T4 outdoor ambient temperature 3 C and the machine connects to power supply newly or if T4 3 C and compressor has stopped for over 3 hours the compressor heating cable will work Preheating mode A weak current flow through the coil of compressor from the wiring terminal of the compressor then the 26 compressor is heated without operation Preheating release condition If 4 gt 5 or the compressor starts running the preheating function will stop 8 3 8 Zero crossing detection error protection except MSR1 24HRDN1 QRCAW If AC detects time interval is not correct for continuous 240s the unit will stop and the LED will display the failure The correct zero crossing signal time interval should be between 6 13ms 8 3 9 Sensor protection at open circuit and breaking disconnection When there s one temperature sensor in malfunction the air conditioner will display error code and will not stop immediately to avoid the case that the air conditioner is in urgent need Fault temp Operation in cooling drying and Operation in heating mode sensor fan only mode T Run supposed 1 26 high Run supposed 1 26 high fan speed speed T2 Refer to table 1 Refer to table 2 T3 Run with compressor frequency 3 minutes defrosting every 40 not h
27. igher than F14 minutes when T4 7 C 2 minutes defrosting every 90 minutes when T427 C 14 Run supposed 4 50 Run supposed 4 15 TP Run supposed 4 50 Run supposed 4 15 T1 1 1 js 4 20 18 5 23 Y Y F12 Indoor fan 1 minute 1 off 1 minute M ane then SA the setting fan speed minutes off table 1 table 2 8 4 10 Refrigerant leakage detection This function is only active in cooling mode It can better prevent the compressor being damaged by refrigerant leakage or compressor overload 27 Open condition Define the evaporator coil temp T2 of the compressor just starts running as Tcool In the beginning 5 minutes after the compressor starts up if 2 lt Tcool 2 C does not keep continuous 4 seconds and this situation happens 3 times the display area will show EC will turn off 28 8 4 Operation Modes and Functions 8 4 1 Fan mode 1 Outdoor fan and compressor stop 2 Temperature setting function is disabled and no setting temperature is displayed 3 Indoor fan can be set to high med low auto 4 The louver operates same as in cooling mode 5 Auto fan For TPN A240 IVP Ti 1 4 27 5 High 2 27 Medium 25 5 EB 25 Y Low For other models A T1 24 6 0 5 20 s0 13 22 Ps 2 0 5 29 8 4 2 Cooling Mode 8 4 2 1 Compressor running rules The maximum operation fr
28. imately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant 21 Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2 way valve approximately 45 until the gauge indicates 0 3 to 0 5 Mpa 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stems nuts and the service port cap Be sure to use a torque wrench to tighten the service port cap to a torque 18N m Be sure to check the gas leakage 6 7 Re installation while the outdoor unit need to be repaired 1 Evacuation for the whole system E Outdoor unit ee rd 2 vilis S i j Vacuum pump Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position 2 Connect the vacuum pump to 3 way valve s service port 3 Evacuation for approximately one hour Confirm that the compound meter indicates 0 1Mpa 4 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 5 Disconnect the charge hose from
29. n defrosting mode 38 Defrosting action For TPN A128 IVP TPG A128 IVP TPN A135 IVP TPG A135 IVP Compressor 4 way valve Outdoor fan Indoor fan on off on off on off on off Frequency FrequencyF16_ Indoor fan breeze 10s Xx 60 For TPN A180 IVP TPG A180 IVP TPN A240 IVP TPG A240 IVP Compressor 4 way valve Outdoor fan Indoor fan on off on off on off on off 1 Os Ben 10s no longer than 10m Frequency FS Frequency F16 _ 305 Indoor fan breeze 10s 90 10s no longer than 10m 306 39 8 4 3 5 Evaporator coil temperature protection 2 4 of TEstop Decrease TEdown Hold TEnorm Resume Y Off Compressor stops Decrease Decrease the running frequency to the lower level Hold Keep the current frequency Resume No limitation for frequency 8 4 4 Auto mode This mode can be chosen with remote controller and the setting temperature can be changed between 17 30 C In auto mode the machine will choose cooling heating or fan only mode according to AT AT T1 Ts geg Indoor fan will run at auto fan of the relevant mode The louver operates same as in relevant mode If the machine switches mode between heating and cooling the compressor will keep stopping for
30. ngth Elevation Length refrigerant i g m TPN A128 IVP TPG A128 IVP TPN 240 IVP TPG A240 IVP 2 Indoor unit Indoor unit Oil trap L Outdoor unit Outdoor unit Caution The capacity test is based on the standard length and the maximum permissive length is based on the system reliability The oil trap should be installed per 5 7 meters 15 6 4 Installation for the first time Air and moisture in the refrigerant system have undesirable effects as below e Pressure in the system rises Operating current rises Cooling or heating efficiency drops Moisture in the refrigerant circuit may freeze and block capillary tubing Water may lead to corrosion of parts in the refrigerant system Therefore the indoor units and the pipes between indoor and outdoor units must be leak tested and evacuated to remove gas and moisture from the system Gas leak check Soap water method Apply soap water or a liquid neutral detergent on the indoor unit connections or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping If bubbles come out the pipes have leakage 1 Air purging with vacuum pump Indoor unit Liquid side Outdoor unit V TEZ NUZZ Two way valve m EE Close Gas side S No Three way valve
31. ower supply and turn it on 5 seconds later Is it still displaying the error code Yes Shut off 5 power supply rotate the cross fan by hand Does it rotate properly Yes Y Check the wires of fan motor Are all the No he unit operates normally No No Disassembly the connection between fan and motor check if the bearing is normal Yes Replace the bearing connections good Yes Y Check the resistance value of indoor fan motor is it normal Correct the connections No Replace indoor fan motor A Yes Y Replace indoor PCB 47 9 2 5 Open circuit or short circuit of temperature sensor diagnosis and solution E4 E5 F1 F2 F3 Check the connections between temperature sensor and PCB Are No gt Correct the connections the connections good Check the resistance value of the sensor via tablet Yes gt and table 2 is it normal No Replace the sensor and check if the problem happen again Replace indoor or outdoor PCB 48 9 2 6 Refrigerant Leakage Detection diagnosis and solution EC Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Yes Y Is there cool air blowing out from indoor air outlet
32. s are set to the opened position Remove the valve stem caps and confirm that the valve stems are in the opened position Be sure to use a hexagonal wrench to operate the valve stems 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Air purging of the charge hose Open the handle Lo valve of the manifold valve slightly to purge air from the charge hose for 5 seconds and then close it quickly 4 Set the 2 way valve to the close position 20 5 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa 6 Set the 3 way valve to the closed position immediately Do this quickly so that the gauge ends up indicating 0 3 to 0 5Mpa Disconnect the charge set and tighten the 2 way and 3 way valve s stem nuts Use a torque wrench to tighten the 3 way valves service port cap to a torque of 18N m Be sure to check for gas leakage 2 Air purging by the refrigerant Indoor unit Liquid side 21 T S zung N Qutdoor unit Charging cylinder Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve Leave the valve on the charging cylinder closed 3 Air purging Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approx
33. se torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage 23 7 Operation Characteristics Temperature Cooling operation Heating operation Drying operation 0 C 50 C Outdoor temperature 15 C 30 C 0 C 50 C For the models with low temperature cooling system CAUTION 1 If the air conditioner is used beyond the above conditions certain safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure the surface of the air conditioner may attract condensation Please set the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 The optimum performance will be achieved during this operating temperature zone 24 8 Electronic function 8 1 Abbreviation T1 Indoor room temperature T2 Coil temperature of evaporator Coil temperature of condenser T4 Outdoor ambient temperature T5 Compressor discharge temperature 8 2 Display function 8 2 1 Icon explanation on indoor display board Auto indicator This indicator illuminates when the air conditioner is in AUTO operation PRE DEF Indicator This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode OPERATION indicator
34. service center There is risk of fire or electric shock B Be caution that water could not enter the product There is risk of fire electric shock or product damage B X Ventilate the product from time to time when operating it together with a stove etc There is risk of fire or electric shock B X Turn the main power off when cleaning or maintaining the product There is risk of electric shock B Whenthe product is not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation B to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury and product damage CAUTION B Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product B Install the drain hose to ensure that water is drained away properly A bad connection may cause water leakage B Keep level even when installing the product It can avoid vibration of water leakage B Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors B Use two or more people to lift and transport the product B Donotinstall the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the cond
35. the vacuum pump 22 2 Refrigerant charging Indoor unit VIE Liquid side D NS Mum C Ke OO 2 Gas side KC eg GE 1 7 d 17 r Charging cylinder se to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is RA10A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant or can be charged with a little at a time approximately 150g each time operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure 5 When the electronic scale displays the proper weight disconnect the charge hose from the 3 way valve s service port immediately If the system has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose 6 Mounted the valve stem caps and the service port U
36. tion There is risk of fire or electric shock B Do not place anything on the power cable There is risk of fire or electric shock B Donot plug or unplug the power supply plug during operation There is risk of fire or electric shock B X Donottouch operation the product with wet hands B Do not place a heater or other appliance near the power cable There is risk of fire and electric shock B Do not allow water to run into electrical parts It may cause fire failure of the product or electric shock B Do not store or use flammable gas or combustible near the product There is risk of fire or failure of product B Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur B When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on B ifstrange sounds or smoke comes from product turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire B Stop operation and close the window in storm or hurricane If possible remove the product from the window before the hurricane arrives 4 There is risk of property damage failure of product or electric shock B Donot open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or product failure B When the product is soaked contact an authorized
37. ualified electrician or an authorized service center Do not disassemble or repair the product there is risk of fire or electric shock B Always ground the product There is risk of fire or electric shock B install the panel and the cover of control box securely There is risk of fire of electric shock B Always install a dedicated circuit and breaker Improper wiring or installation may cause fore or electric shock B Use the correctly rated breaker of fuse There is risk of fire or electric shock B Do not modify or extend the power cable There is risk of fire or electric shock B Do not install remove or reinstall the unit by yourself customer There is risk of fire electric shock explosion or injury B Be caution when unpacking and installing the product Sharp edges could cause injury be especially careful of the case edges and the fins on the condenser and evaporator B For installation always contact the dealer or an authorized service center B Do not install the product on a defective installation stand B Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open B Take care to ensure that power cable could not be pulled out or damaged during opera
38. ve the charge hose from the 3 way valve 8 Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve 2 Air purging by refrigerant Outdoor unit Pu g i N 2 i Charging cylinder Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve 3 Air purging Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant 17 Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2 way valve approximately 45 until the gauge indicates 0 3 to 0 5 Mpa 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stems nuts and the service port cap Be sure to use a torque wrench to tighten the service port cap to a torque 18N m Be sure to check the gas leakage 3 Adding the refrigerant if the pipe length gt 5m DOT
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