1. Precaution Use caution when unpacking and 1.1 Safety Precaution installing the product. To prevent injury to the user or other Sharp edges could cause injury, be people and property damage, the especially careful of the case edges and following instructions must...
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Do not use the product in a tightly CAUTION closed space for a long time. Always check for gas (refrigerant) Oxygen deficiency could occur. leakage after installation or repair of When flammable gas leaks, turn off the product.
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Do not step on or put anything on the product (outdoor units). 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.
2. Model List Model Names of Indoor/Outdoor Units Capacity Indoor units Outdoor units 3D inverter DA1221-H2-I DA1221-H2-O DA1821-H2-I DA1821-H2-O DA2421-H2-I DA2421-H2-O...
5. Installation Details 5.1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque inch N.cm N.cm Ф6.35 1500(153kgf.cm) 1600(163kgf.cm) Ф9.52 2500(255kgf.cm) 2600(265kgf.cm) Ф12.7 3500(357kgf.cm) 3600(367kgf.cm) Ф15.9 4500(459kgf.cm) 4700(479kgf.cm) Ф19 6500(663kgf.cm) 6700(683kgf.cm) 5.2 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 (mm²...
Operate the vacuum pump to evacuate. 5.4 Installation for the first time Make evacuation for 30 minutes and check whether the compound meter indicates Air and moisture in the refrigerant system have -0.1Mpa. If the meter does not indicate undesirable effects as below: -0.1Mp after pumping 30 minutes, it should ...
Purge the air from the charge hose. Open the Air purging- valve at the bottom of the cylinder and press Open the valves on the charging cylinder and the the check valve on the charge set to purge the charge set. Purge the air by loosening the flare air (be careful of the liquid refrigerant).
Connect the charge hose with the push pin of 5.7 Re-installation while the outdoor unit needs to handle lo to the 3-way valves gas service port. be repaired Air purging of the charge hose. Open the handle Lo 1. Evacuation for the whole system valve of the manifold valve slightly to purge air from the charge hose for 5 seconds and then close it quickly.
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of the cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure liquid charge. 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).
6. Operation Characteristics 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.
Displays ‘ ’ during self clean operation (if 7. Electronic function applicable). 7.1 Abbreviation Displays ‘ ’ under 8℃ heating operation (if T1: Indoor room temperature applicable). T2: Coil temperature of evaporator. When ECO function (optional) is active, the T3: Coil temperature of condenser. “...
7.3 Main Protection 7.3.1 Three minutes delay at restart for 7.3.9 Refrigerant leakage detection compressor This function is only active in cooling mode. It can better 1 minute delay for the 1 time stand-up and 3 prevent the compressor from being damaged by minutes delay for others.
7.4 Operation Modes and Functions 7.4.1 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: 7.4.2.2 Indoor fan running rules In cooling mode, indoor fan runs all the time and the...
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The indoor fan is controlled as below: When condenser temperature temp. is more than setting value, the compressor will stop. 7.4.2.5 Evaporator temperature protection When Evaporator temperature is less than setting value, the compressor will stop. 7.4.3 Heating Mode Auto fan action in heating mode: 7.4.3.1 Compressor running rules When T1-Ts>-ΔT, the compressor will stop.
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7.4.3.5 Evaporator coil temperature protection Forced auto mode: The action of forced auto mode is the same as normal auto mode with 24˚C setting temperature. When AC receives signals, such as switch on, switch off, timer on, timer off, mode setting, fan speed setting, sleeping mode setting, follow me setting, it will quit the forced operation.
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7.4.13 Self clean(optional) 7.4.8.3 Operation time in sleep mode is 7 hours. After 7 hours the AC quits this mode and turns off. For heat pump models provided with this function: After running in cooling or drying mode, once the user presses 7.4.8.4 Timer setting is available.
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7.4.16 Point check function Press the LED DISPLAY or LED or MUTE button of the remote controller three times, and then press the AIR DIRECTION or SWING button three times in ten seconds, the buzzer will ring for two seconds. The air conditioner will enter into the information inquiry status.
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When the AC enters into the information inquiry status, it will display the code value in the next 25 seconds. The details are as follows: Inquiry Display value Meaning Remark information T1, T2, T3, T4, T2B, TP, TH, -1F,-1E,-1d,- -25,-24,-23,-22,-21, - 1.
8. Troubleshooting Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor. 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.
8.1 Indoor Unit Error Display Operation Timer lamp Display LED STATUS lamp Indoor unit EEPROM parameter error ☆ 1 time Indoor/outdoor units communication error ☆ 2 times Zero-crossing signal detection error ☆ 3 times Indoor fan speed has been out of control ☆...
8.2 Trouble shooting 8.2.1 EEPROM parameter error diagnosis and solution(E0/F4) E0/F4 Error Code Malfunction decision Indoor or outdoor PCB main chip does not receive feedback conditions from EEPROM chip. ● Installation mistake Supposed causes ● PCB faulty Trouble shooting: Shut off the power supply and turn it on 2 minutes later.
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8.2.2 Indoor / outdoor unit’s communication diagnosis and solution(E1) Error Code Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions 110 seconds and this condition happens four times continuously. ● Wiring mistake Supposed causes ● Indoor or outdoor PCB faulty Troubleshooting: Power off, then restart the unit 2 minutes...
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Remark: Use a multi meter 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 malfunctioned and need to be replaced.
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8.2.3 Fan speed has been out of control diagnosis and solution(E3) E3/F5 Error Code Malfunction decision When fan speed keeps too low or too high for certain time, the conditions unit will stop and the LED will display the failure. ●...
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Index1: 1:Indoor or Outdoor DC Fan Motor(control chip is in fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must have problems and need to be replaced. DC motor voltage input and output(voltage: 220-240V~) Color Signal...
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8.2.4 Refrigerant Leakage Detection diagnosis and solution(EC) Error Code Define the evaporator coil temp.T2 of the compressor just starts running as Tcool. Malfunction decision In the beginning 8 minutes after the compressor starts up, if T2 <Tcool-2˚C does not keep continuous 4 seconds and compressor running conditions frequency higher than 50Hz does not keep continuous 3 minutes, and this situation happens 3 times, the display area will show “EC”...
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8.2.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5) E4/E5/F1/F2/F3 Error Code Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, conditions the LED will display the failure. ● Wiring mistake Supposed causes ●...
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8.2.6 Overload current protection diagnosis and solution(F0) Error Code Malfunction decision An abnormal current rise is detected by checking the specified current detection circuit. conditions ● Power supply problems. ● System blockage Supposed causes ● PCB faulty ● Wiring mistake ●...
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8.2.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0) Error Code Malfunction decision When the voltage signal that IPM send to compressor drive chip conditions is abnormal, the display LED will show “P0” and AC will turn off. ●...
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8.2.8 Over voltage or too low voltage protection diagnosis and solution(P1) Error Code Malfunction decision An abnormal voltage rise or drop is detected by checking the conditions specified voltage detection circuit. ● Power supply problems. Supposed causes ● Wiring mistake ●...
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8.2.9 High temperature protection of IPM or compress top diagnosis and solution (P2) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the failure. conditions ● Installation mistake ● Power supply problems. Supposed causes ●...
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8.2.10 Inverter compressor drive error diagnosis and solution (P4) Error Code An abnormal inverter compressor drive is detected by a special detection circuit, Malfunction decision including communication signal detection, voltage detection, compressor rotation conditions speed signal detection and so on. ●...
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Main parts check 1. Temperature sensor checking Disconnect the temperature sensor 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.
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Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (° C--K) ˚C ˚F ˚C ˚F ˚C ˚F ˚C ˚F K Ohm K Ohm K Ohm K Ohm 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148 101.517 11.5 2.19073 0.59386 96.3423 10.9731 2.11241 0.57683...
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Appendix 2 Temperature Sensor Resistance Value Table for T5 (° C --K) ˚C ˚F ˚C ˚F ˚C ˚F ˚C ˚F K Ohm K Ohm K Ohm K Ohm 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 62.73 12.65 3.492 455.9 59.98 12.21 3.392...
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2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value ASN98D22U ASM98D32U ASM135D23 ATF235D22 Blue - Red 1.57Ω 2.3Ω 1.75Ω 0.75Ω (20˚C/68˚F) (20˚C /68˚F) (20˚C /68˚F) (20℃/68˚F) Blue - Black Red - Blue...
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