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10.4.9 High temperature protection of compressor top diagnosis and solution(P2)

Error Code

Malfunction decision

conditions

If the sampling voltage is not 5V, the LED will display the failure.

Supposed causes

●

Power supply problems.

●

System leakage or block

●

PCB faulty

Trouble shooting:

Check if the air flow system

of indoor and outdoor units

are obstructed?

Clear up the air inlet and outlet or the heat

exchanger of indoor and outdoor units.

Yes

Turn off the power supply and turn
it on 10 minutes later.

Check if the unit can

start normally.

Check if the refrigerant

charge volume is normal?

Recharge the correct

refrigerant volume.

Refrigerant system is blocked, such

as capillary or welded point of pipes.

Yes

Check if all the connection, especially

the connection of OLP (Over Load

Protector) sensor is good.

Correct the connection.

Measure the resistance
between the two ports of
the OLP. Is it zero?

Yes

Replace the OLP.

Replace the outdoor control PCB.

Yes

Содержание DA1215-H1

Страница 1: ...ilding codes or in the absence of local codes with the National Electrical Code NFPA70 ANSI C1 1993 or current edition and Canadian Electrical Code Part1 CSA C 22 1 The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments Installation or repairs made by unqualified persons c...

Страница 2: ...2 Connecting the cables 22 7 3 Pipe length and the elevation 22 7 4 Installation for the first time 23 7 5 Adding the refrigerant after running the system for many years 24 7 6 Re installation while the indoor unit need to be repaired 24 7 7 Re installation while the outdoor unit need to be repaired 25 8 Operation Characteristics 27 9 Electronic Function 28 9 1 Abbreviation 28 9 2 Display function...

Страница 3: ...ful of the case edges and the fins on the condenser and evaporator For installation always contact the dealer or an authorized service center Do not install the product on a defective installation stand 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 a...

Страница 4: ... away properly A bad connection may cause water leakage Keep level even when installing the product It can avoid vibration of water leakage 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 Use two or more people to lift and transport the product Do not install the product where it will be exposed to...

Страница 5: ... of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn of explode If the 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 ...

Страница 6: ... 2 Part Names And Functions 2 1 Model Names of Indoor Outdoor units Series Capacity Indoor units Outdoor units Inverter 12k DA1215 H1 I DA1215 H1 O 18k DA1815 H2 I DA1815 H2 O 22k DA2415 H2 I DA2415 H2 O ...

Страница 7: ...5 2 2 Part names of Indoor Outdoor units ...

Страница 8: ...F Filter O Bio Filter O Golden Fin O Cold Catalyst Filter Compressor Crankcase Heater standard for 16k 21k Self Clean O Follow Me O 8 Degree Heating O Heat Compensation O Self diag Function PTC Heating Belt O Filter Louver Position Memory Function Refrigerant Leakage Detect O optional function ...

Страница 9: ...the unit turns to heating operation with low fan speed which dries the inside of indoor unit Finally it turns to fan only mode and blows away the wet air The whole process cleans the internal side of indoor unit and prevents the breeding of bacteria Follow me With this technology a temperature sensor is built in the remote control when you stay close to the remote control the unit will automatical...

Страница 10: ...8 3 Dimension 3 1 Indoor Unit W D H Model W D H DA12 H1 I 770mm 30 3in 188mm 7 4in 255mm 10 0in DA18 H2 I 905mm 35 6in 198mm 7 8in 275mm 10 8in DA24 H2 I 1030mm 40 6in 218mm 8 6in 315mm 12 4in ...

Страница 11: ...on hole mm DA1215 H1 I Φ65mm 2 56in 95mm 3 7in 170mm 6 7in 45mm 1 8in DA1815 H1 I 80mm 3 1in 100mm 3 9in 45mm 1 8in Model R mm L mm H mm Dimension of installation hole mm DA2415 H1 I 163mm 6 4in 293mm 11 5in 45mm 1 8in Φ65mm 2 56in 3 2 Outdoor Unit H L R ...

Страница 12: ...Note The above drawing is only for reference The appearance of your units may be different DA1215 H1 O 780 30 7in 250 9 8in 540 21 3in 843 33 2in 549 21 6in 276 10 9in DA1815 H2 O 760mm 29 9in 285mm 11 2in 590mm 23 2in 823mm 32 4in 530mm 20 9in 290mm 11 4in DA2415 H2 O 845mm 33 3in 320mm 12 6in 700mm 27 6in 908mm 35 7in 560mm 22 0in 335mm 13 2in ...

Страница 13: ...11 ...

Страница 14: ...12 5 Refrigerant Cycle Diagram For cooling only models INDOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR CAPILIARY TUBE ...

Страница 15: ...NDOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE CHECK VALVE Heating Model only CAPILIARY TUBE REVERSING VALVE Heating Model only COOLING HEATING ACCUMULATOR ...

Страница 16: ...14 6 Wiring Diagram 6 1 Indoor Unit 12000 BTU 115 VOLT 18000 BTU 220 VOLT 24000 BTU 220 VOLT ...

Страница 17: ...15 ...

Страница 18: ...16 6 2 Outdoor Unit DA1215 H1 O ...

Страница 19: ...17 DA1815 H2 O ...

Страница 20: ...18 DA2415 H2 O ...

Страница 21: ...19 For DA1215 H1 O ...

Страница 22: ...20 For DA1815 H2 O For DA2415 H2 O ...

Страница 23: ...21 ...

Страница 24: ... 12 30 10 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 7 3 Pipe length and the elevation Models Pipe size Gas Liquid DA1215 H1 3 8in Ф9 52mm 1 4in Ф6 35mm DA1815 H2 1 2in Ф12 7mm 1 4in Ф6 35mm DA2415 H2 5 8in Ф...

Страница 25: ...e 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 300 MICRONS 14 5Psi If the meter does not indicate 300MICRONS 14 5Psi after pumping 30 minutes it should be pumped 20 minutes more If the pressure can t achieve 300 MICRONS 14 5Psi after p...

Страница 26: ...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 7 6 Re installation while the indoor unit need to be repaired 1 Collecting the refrigerant into the outdoor unit Procedure 1 Confirm that both the 2 way and 3 way valves are set to the ope...

Страница 27: ...l the gauge indicates 0 3Mpa 43 5Psi to 0 5 Mpa 72 5Psi 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 7 7 R...

Страница 28: ...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...

Страница 29: ... 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 fa...

Страница 30: ...lay board Defrost Indicator This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode Run indicator Flash at 0 5Hz when the unit is standby Illuminate when the unit is turned on Timer indicator This indicator illuminates when TIMER is set ON OFF Temperature indicator Displays the temperature settings when t...

Страница 31: ...de the indoor fan will be also controlled by anti cold wind function 9 3 7 Compressor preheating functions Preheating permitting condition If T4 outdoor ambient temperature 3 and the machine connects to power supply newly or if T4 3 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 t...

Страница 32: ...or operation frequency If users switch on AC 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 3 5 3 0 2 5 2 0 1 5 1 0 0 5 0 5 1 0 A B C D E F G H While the zones of A B C are corresponding to diffe...

Страница 33: ... ã F High Low 20 ã C 68 0 ã F Medium 22 ã C 71 6 ã F For other models 22 20 High Low 9 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 and auto Auto fan in cooling mode acts as follow 4 3 High Low 1 Medium 1 5 9 4 3 Heating Mode 9 4 3 1 Compressor running rules The maximum operation frequency of the compressor after start...

Страница 34: ...until to F10 F Keep the current frequency G Decrease the frequency to the lower level until to F1 H Run at F1 for 1h if T1 Ts ΔT 6 the compressor will stop Meanwhile the compressor running frequency is limited by the current I3HEAT I2HEAT I1HEAT Off Decrease Hold Resume I3HEAT I2HEAT I1HEAT mean different running current value Off Compressor stops Decrease Decrease the running frequency to the low...

Страница 35: ...s decreased more than 5 When T2 has decreased more than 5 enter the defrosting mode No matter what value T4 is if the machine runs with T3 3 for more than 120 minutes and T3 keeps lower than TCDI 4 for more than 3 minutes the machine will enter defrosting mode no matter if T2 drops more than 5 or not Condition of ending defrosting If any one of the following items is satisfied the defrosting will ...

Страница 36: ...porator coil temperature protection T2 TEH2 the compressor running frequency decreases to the lower level and runs for 20s When the frequency decreases to F2 F1 for and the T2 is still over TEH2 for 3 minutes the compressor will stop T2 48 or T2 stays in 48 TEH2 for 6 minutes the frequency will not be limited by T2 T2 60 the compressor will stop and restart when T2 48 9 4 4 Auto mode This mode can...

Страница 37: ... then turn on automatically when reaching the setting on time 9 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 9 4 7 7 The setting time is relative time 9 4 8 Sleep function mode 9 4...

Страница 38: ...elay when restarts 9 4 10 8 Heating optional In heating operation the preset temperature of the air conditioner can be as lower as 8 which keeps the room temperature steady at 8 and prevents household things freezing when the house is unoccupied for a long time in severe cold weather ...

Страница 39: ... electricity power in capacitor Electrolytic Capacitors HIGH VOLTAGE CAUTION For other models please connect discharge resistance approx 100Ω 40W or soldering iron plug between terminals of the electrolytic capacitor on the contrary side of the outdoor PCB Note The picture above is only for reference The plug of your side may be different ...

Страница 40: ...frigerant leakage detection 2 times O F1 Outdoor temperature sensor T4 open circuit or short circuit 3 times O F2 Condenser coil temperature sensor T3 open circuit or short circuit 4 times O F3 Compressor discharge temperature sensor T5 open circuit or short circuit 5 times O F4 Outdoor unit EEPROM parameter error 6 times O F5 Outdoor fan speed has been out of control only for 1 times P0 IPM malfu...

Страница 41: ...OR UNIT ERROR DISPLAY DA1215 H1 O There s a LED light on the outdoor PCB which is blue color After power on it will be slow flash 0 2Hz when the unit is in standby and quick flash 2 5Hz if the unit has some problems ...

Страница 42: ...ght and for the PCB POWER display LED 2 is a yellow light After power on it will be slow flash 0 2Hz when the unit is in standby and quick flash 2 5Hz if the unit has some problems LED 4 green and LED3 red are two lights controlled by the compressor drive chip Below are meanings for those lights LED3 red LED4 green LED2 yellow LED1 red ...

Страница 43: ...ection O O P1 5 Over voltage or too low voltage protection O P1 6 Inverter compressor drive error X P4 7 Inverter compressor drive error O P4 8 Inverter compressor drive error P4 O light X off 2 5Hz flash DA1215 H2 O There s a LED light on the outdoor PCB which is blue color After power on it will be slow flash 0 2Hz when the unit is in standby and quick flash 2 5Hz if the unit has some problems ...

Страница 44: ...ce the main PCB directly Otherwise check whether the EEPROM chip plugged in main PCB well Yes No Yes Correct the connection Replace the main PCB Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code EEPROM a read only memory whose contents can be erased and reprogrammed using a pulsed voltage For the location of EEPROM chip please refer to the below photos ...

Страница 45: ...with S port Yes Power off then turn on the unit 5 seconds later reconnect the power wire Is the error still displaying after several minutes No Replace the outdoor main PCB Power on Is the error extinguished Check all the wiring with indoor units Is the wiring to the indoor main PCB connected correctly Replace the indoor main PCB Yes Replace the outdoor main PCB No Check all the wiring with outdoo...

Страница 46: ...ll move alternately between 50V to 50V If the outdoor unit has malfunction the voltage will move alternately with positive value While if the indoor unit has malfunction the voltage will be a certain value Remark Use a multimeter to test the resistance of the reactor which does not connect with capacitor The normal value should be around zero ohm Otherwise the reactor must have malfunction and nee...

Страница 47: ...ro crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal Supposed causes Connection mistake PCB faulty Trouble shooting Check if the connections and power supply is normal Correct the connections Turn on the unit when the power supply is good No Yes Indoor main PCB is defective Replace indoor main PCB ...

Страница 48: ...ill displaying the error code Shut off the power supply rotate the fan by hand Does it rotate properly The unit operates normally Find out the cause and have it solved For example check whether the fan is blocked or the bearing is broken Check the wires of fan motor Are all the connections good No Yes No Correct the connections No Yes Check whether the main PCB is normal through index 2 Yes Yes Ch...

Страница 49: ... less than 100V 208 240V power supply or 50V 115V power supply the PCB must have problems and need to be replaced 2 Outdoor DC Fan Motor control chip is in outdoor PCB NO 1 2 3 4 5 Color Orange Grey White Pink Black Signal Hu Hv Hw Vcc GND Color Red Blue Yellow Signal W V U 1 Release the UVW connector Measure the resistance of U V U W V W If the resistance is not equal to each other the fan motor ...

Страница 50: ...e the PCB Otherwise go to step 3 3 Rotate the fan by hand measure the voltage of pin1 5 pin 2 5 and pin 3 5 in feedback signal connector If any voltage is not positive voltage fluctuation the fan motor must has problems and need to be replaced ...

Страница 51: ... LED will display the failure Supposed causes Wiring mistake Sensor faulty PCB faulty Trouble shooting Check the connections between temperature sensor and main PCB Are the connections good Correct the connections No Yes Yes Replace indoor or outdoor main PCB Replace the sensor and check if the problem happen again Check the resistance value of the sensor via table1 p64 and table 2 p65 is it norma...

Страница 52: ...ndoor PCB faulty System problems such as leakage or blocking Trouble shooting Is there cool air blowing out from indoor air outlet Yes Yes Check if T2 sensor is well fixed Correct the installation or replace T2 sensor Does the problem remain again No Is there any leakage Especially the connection parts such as the gas valve and the liquid valve No Shut off the power supply and turn it on 5 seconds...

Страница 53: ...e 64 Replace the IPM board or replace the main PCB if the IPM board and main PCB are integrated together No Check if the outdoor fan runs properly or the outdoor unit ventilation is good Yes No please refer to the below remark check whether the resistance of the fan motor is normal If not replace the fan motor Yes Check if the compressor resistance values are uniform Refer to page 63 No Replace th...

Страница 54: ...52 P U P V ...

Страница 55: ...53 P W P N ...

Страница 56: ...e unit with power supply and try to restart the unit when power supply gets normal No Yes No Correct the connections or replace the wires Yes 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 kinds of units the voltage differs Consult with technical engineer to get definite value Then start up the unit measure the voltage ...

Страница 57: ...outlet or the heat exchanger of indoor and outdoor units Yes No Yes Yes Turn off the power supply and turn it on 10 minutes later Check if the unit can start normally No Check if the refrigerant charge volume is normal Recharge the correct refrigerant volume Refrigerant system is blocked such as capillary or welded point of pipes Yes Check if all the connection especially the connection of OLP Ove...

Страница 58: ...are uniform Refer to page 64 Replace the IPM board or replace the main PCB if the IPM board and main PCB are integrated together No Check if the outdoor fan runs properly or the outdoor unit ventilation is good Yes No please refer to the below remark check whether the resistance of the fan motor is normal If not replace the fan motor Yes Check if the compressor resistance values are uniform Refer ...

Страница 59: ... from PCB measure the resistance value with a tester Temperature Sensors Room temp T1 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 ...

Страница 60: ...7 243 0 38991 2 28 39 8239 38 100 5 62961 78 172 1 25423 118 244 0 37956 1 30 37 1988 39 102 5 39689 79 174 1 2133 119 246 0 36954 0 32 35 2024 40 104 5 17519 80 176 1 17393 120 248 0 35982 1 34 33 3269 41 106 4 96392 81 178 1 13604 121 250 0 35042 2 36 31 5635 42 108 4 76253 82 180 1 09958 122 252 0 3413 3 37 29 9058 43 109 4 5705 83 181 1 06448 123 253 0 33246 4 39 28 3459 44 111 4 38736 84 183 ...

Страница 61: ...25 222 8 36 97 34 32 76 169 7 82 116 241 2 357 3 27 211 4 37 99 32 94 77 171 7 566 117 243 2 294 2 28 200 7 38 100 31 62 78 172 7 321 118 244 2 233 1 30 190 5 39 102 30 36 79 174 7 086 119 246 2 174 0 32 180 9 40 104 29 15 80 176 6 859 120 248 2 117 1 34 171 9 41 106 28 81 178 6 641 121 250 2 061 2 36 163 3 42 108 26 9 82 180 6 43 122 252 2 007 3 37 155 2 43 109 25 86 83 181 6 228 123 253 1 955 4 ...

Страница 62: ...60 Appendix 3 10 11 12 13 14 15 16 17 18 19 20 21 22 48 50 52 54 56 58 60 62 64 66 68 70 72 23 24 25 26 27 28 29 30 31 32 33 34 35 74 76 78 80 82 84 86 88 90 92 94 96 98 ...

Страница 63: ...g Measure the resistance value of each winding by using the tester Position Resistance Value DA108X1C 23EZ DA108X1C 20FZ3 DA130M1C 31FZ DA150S1C 20FZ Blue Red 1 1Ω 20 68 0 71Ω 20 68 1 77Ω 20 68 0 95Ω 20 68 Blue Black Red Blue ...

Страница 64: ...MΩ P N U N U V V W W Red 4 Indoor AC Fan Motor Measure the resistance value of each winding by using the tester Position Resistance Value RPG13B RPG15A RPG20B RPG28H RPG45B Black Red 530Ω 8 20 68 Brand Welling 75Ω 8 20 68 Brand Welling 381Ω 8 20 68 Brand Welling 183 6Ω 8 20 68 Brand Welling 112Ω 8 20 68 Brand Welling 118 5Ω 8 20 68 Brand Broad Ocean White Black 315Ω 8 20 68 Brand Welling 150Ω 8 20...

Страница 65: ...ODT IDT 75 23 89 85 29 44 95 35 105 40 56 115 46 11 PSI 70 59 119 113 117 125 147 PSI 75 63 124 120 126 132 155 PSI 80 67 135 129 132 140 162 ODT IDT 75 23 89 85 29 44 95 35 105 40 56 115 46 11 MPA 70 59 0 82 0 78 0 81 0 86 1 01 MPA 75 63 0 86 0 83 0 87 0 91 1 07 MPA 80 67 0 93 0 89 0 91 0 96 1 12 0 0 2 0 4 0 6 0 8 0 10 0 12 0 75 23 89 85 29 44 95 35 105 40 56 115 46 11 70 59 75 63 80 67 ...

Страница 66: ... 37 33 2 78 0 56 27 23 2 78 5 17 13 8 33 10 56 PSI 55 439 413 367 330 302 PSI 65 471 435 386 368 339 PSI 75 489 457 403 381 362 ODT IDT 57 53 13 89 11 67 47 43 8 33 6 11 37 33 2 78 0 56 27 23 2 78 5 17 13 8 33 10 56 MPA 55 3 03 2 85 2 53 2 28 2 08 MPA 65 3 25 3 00 2 66 2 54 2 33 MPA 75 3 38 3 15 2 78 2 63 2 49 0 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 57 53 13 89 11 67 47 43 8 33 6 11 37 33 2 78 ...

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