Hisense AMW2-18U4RJC Technical & Service Manual
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Hisense AMW2-18U4RJC Technical & Service Manual

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R32
R410A
R410A
R410A
TECHNICAL & SERVICE MANUAL
V1.1
—MULTI-SPLIT TYPE AIR CONDITIONERS

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Summary of Contents for Hisense AMW2-18U4RJC

  • Page 1 R410A R410A R410A TECHNICAL & SERVICE MANUAL V1.1 —MULTI-SPLIT TYPE AIR CONDITIONERS...
  • Page 2 Models: <Outdoor Unit> AMW2-18U4RJC(AUS) AMW3-24U4RJC(AUS) AMW4-27U4RJC(AUS) AMW4-36U4RAA(AUS) AMW5-42U4RTA(AUS) <Indoor Unit> Ducted AMD-09UX4RAL4 ADT-12UX4RBL4 ADT-18UX4RCL4 AMD-24UX4RCL4...
  • Page 3 Model Comparison Table Category Factory Model Market Model AMW2-18U4RJC(AUS) AMW2-52U4RJC AMW3-24U4RJC(AUS) AMW3-71U4RJC Multi-Split Outdoor Model AMW4-27U4RJC(AUS) AMW4-80U4RJC AMW4-36U4RAA(AUS) AMW4-100U4RAA AMW5-42U4RTA(AUS) AMW5-125U4RTA AMD-09UX4RAL4 AMD-25UX4RAL4 ADT-12UX4RBL4 AMD-35UX4RBL4 Multi-Split Indoor Model ADT-18UX4RCL4 AMD-50UX4RCL4 AMD-24UX4RCL4 AMD-71UX4RCL4...
  • Page 4 SAFETY SUMMARY IMPORTANT NOTICE ● We pursue a policy of continuing improvement in design and performance of products. The right is therefore reserved to vary specifications without notice. ● We cannot anticipate every possible circumstance that might involve a potential hazard. ●...
  • Page 5 ● If circuit breaker or fuse is often activated, stop the system and contact your service contractor. ● Check that the ground wire is securely connected. If the unit is not correctly grounded, it will lead to electric shock. Do not connect the ground wiring to gas piping, water piping, lightning conductor or ground wiring for telephone.

  • Page 6: Table Of Contents

    Multi-Split Type Air Conditioner Ser vice Manual Table of Contents 1. General ..............................1 1.1 Features............................1 1.2 Product lineup ..........................4 1.3 Nomenclature ..........................4 1.4 Unit installation ..........................5 1.5 Working range..........................5 1.6 Product appearance ........................6 2. Outlines and dimensions ........................8 3. Electrical data .............................14 4.

  • Page 7: General

    1. GENERAL 1. General 1.1 Features Outdoor Unit  Twin Rotary DC Inverter Compressor The twin rotary inverter compressor design reduces friction during operation for smoother rotation with less vibration, while also preventing leakage of refrigerant gas during compression. The result is a far quieter and more efficient air conditioner.
  • Page 8 1. GENERAL  Comfortable temperature control DC inverter power control uses its full capacity at startup to cool/warm quickly. As soon as the set temperature is reached, it carefully adjusts current frequency to prevent temperature fluctuation and energy loss.  Long piping for flexible installation The ample maximum piping length of 50 m permits more freedom in the placement of air conditioner units and enables you to optimise interior space.
  • Page 9 1. GENERAL Indoor Unit Duct Type Air Conditioner Features Save Installation Space  The indoor unit can be installed inside the ceiling conveniently. Optional Static Pressure  Optional ESP, a variety of optional installation methods. 24-hour Timer ON and OFF ...

  • Page 10: Product Lineup

    1. GENERAL 1.2 Product lineup Outdoor unit Model(Btu/h) Type ● Up to 2 IDUs ● Up to 3 IDUs ● ● Up to 4 IDUs ● Up to 5 IDUs Indoor unit Model(Btu/h) Type Duct type ● ● ● ● ●...

  • Page 11: Unit Installation

    1. GENERAL Indoor unit A M D - 09 U X 4 R A L 4 Series Static Pressure Type Sales Region Code L: Low ESP M: Medium ESP H: High ESP Indoor Unit Code Refrigerant TypeR: R32 S: R410A F: R22 Power Supply 2: 220V ~/60Hz 4: 220-240V ~/50Hz...

  • Page 12: Product Appearance

    1. GENERAL Operating temperature range This air conditioner is designed for the following outdoor operating temperatures. Outdoor operating temperature (℃) Mode Series maximum minimum Cooling Operation DC-Inverter Multi- Split Air Conditioner (Heat pump type) Heating Operation Storage condition: Temperature: -25~60℃ Humidity: 30%~80% 1.6 Product appearance...
  • Page 13 1. GENERAL Model Indoor unit (Cooling Capacity: Btu/h) 18K/24K Display panel Description 1 Run indicator (Red) It lights on in operation. It lights off in SLEEP mode. 2 Emergency switch The filter clean indicator is reset when the switch is pressed. The unit will be started or stopped once the switch is pressed.

  • Page 14: Outlines And Dimensions

    2. OUTLINES AND DIMENSIONS 2. Outlines and dimensions Unit: (mm)
  • Page 15 2. OUTLINES AND DIMENSIONS Unit: (mm)
  • Page 16 2. OUTLINES AND DIMENSIONS Unit: (mm)
  • Page 17 2. OUTLINES AND DIMENSIONS Unit: (mm)
  • Page 18 2. OUTLINES AND DIMENSIONS Unit: (mm)
  • Page 19 2. OUTLINES AND DIMENSIONS Indoor units Duct Unit：mm Air outlet Air inlet Gas pipe Liquid pipe Air outlet Drain pipe Electric box Air inlet Model ( Btu/h) 18K/24K 1231 1180 1019 1056...

  • Page 20: Electrical Data

    3. ELECTRICAL DATA 3. Electrical data Power supply Applicable voltage Model Nominal Nominal Voltage(V) Frequency Umin(V) Umax(V) Sensitive Current(A) Current(mA) 220-240 24K/27K/36K 220-240 220-240 NOTE: 1. The above compressor data is based on 100% capacity combination of indoor units at the rated operating frequency.

  • Page 21: Capacities And Selection Data

    4. CAPACITIES AND SELECTION DATA 4. Capacities and selection data 4.1 Capacity characteristic charts The following charts show the characteristics of outdoor unit capacity, which corresponds with the operating ambient temperature of outdoor unit. Conditions: ① Pipe length/height difference: 5m / 0m ②...
  • Page 22 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW2-18U4RJC(AUS) CAPACITY: 5.0 kW SHF: 0.78 INPUT: 1200 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT...
  • Page 23 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW2-18U4RJC(AUS) CAPACITY: 5.0 kW SHF: 0.78 INPUT: 1200 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT...
  • Page 24 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW2-18U4RJC(AUS) CAPACITY: 5.0 kW SHF: 0.78 INPUT: 1200 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT...
  • Page 25 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW2-18U4RJC(AUS) CAPACITY: 5.0 kW SHF: 0.78 INPUT: 1200 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT...
  • Page 26 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW2-18U4RJC(AUS) CAPACITY: 5.0 kW SHF: 0.78 INPUT: 1200 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT...
  • Page 27 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW2-18U4RJC(AUS) CAPACITY: 5.0 kW SHF: 0.78 INPUT: 1200 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT...
  • Page 28 4. CAPACITIES AND SELECTION DATA HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 4.34 1465 5.10 1510 5.67 1525 6.23 1556 6.77 1638 7.31 1720 7.68 1772 7.91 1807 4.29 1476 5.04 1522 5.60...
  • Page 29 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 3.97 1328 4.67 1369 5.19 1383 5.70 1411 6.20 1485 6.69 1559 7.03 1606 7.24 1638 3.92 1338 4.61 1380 5.13 1394 5.63 1422...
  • Page 30 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW3-24U4RJC(AUS) CAPACITY: 7.0 kW SHF: 0.78 INPUT: 1920 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF...
  • Page 31 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW3-24U4RJC(AUS) CAPACITY: 7.0 kW SHF: 0.78 INPUT: 1920 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF...
  • Page 32 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Ra ted Frequency) ● AMW3-24U4RJC(AUS) CAPACITY: 7.0 kW SHF: 0.78 INPUT: 1920 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF...
  • Page 33 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation a t Rated Frequency) AMW3-24U4RJC(AUS) CAPACITY: 7.0 kW SHF: 0.78 INPUT: 1920 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF...
  • Page 34 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW3-24U4RJC(AUS) CAPACITY: 7.0 kW SHF: 0.78 INPUT: 1920 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF...
  • Page 35 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW3-24U4RJC(AUS) CAPACITY: 7.0 kW SHF: 0.78 INPUT: 1920 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF...
  • Page 36 4. CAPACITIES AND SELECTION DATA HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 5.78 1928 6.80 1987 7.56 2007 8.31 2048 9.03 2156 9.75 2264 10.24 2332 10.55 2379 5.71 1943 6.72 2003 7.47...
  • Page 37 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 5.29 1748 6.23 1802 6.92 1820 7.60 1857 8.26 1955 8.92 2052 9.37 2114 9.65 2156 5.23 1762 6.15 1816 6.84 1834 7.51 1872...
  • Page 38 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW4-27U4RJC(AUS) CAPACITY: 8.0 kW SHF: 0.78 INPUT: 2230 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF...
  • Page 39 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW4-27U4RJC(AUS) CAPACITY: 8.0 kW SHF: 0.78 INPUT: 2230 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF...
  • Page 40 4. CAPACITIES AND SELECTION DATA Cooling Operation PERFORMANCE DATA OUTDOOR DB (°C) COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 41 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW4-27U4RJC(AUS) CAPACITY: 8.0 kW SHF: 0.78 INPUT: 2230 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF...
  • Page 42 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW4 -27U4RJC(AUS) CAPACITY: 8.0 kW SHF: 0.78 INPUT: 2230 W ● COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF...
  • Page 43 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW4-27U4RJC(AUS) CAPACITY: 8.0 kW SHF: 0.78 INPUT: 2230 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF...
  • Page 44 4. CAPACITIES AND SELECTION DATA HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 6.51 2199 7.65 2267 8.50 2290 9.35 2337 10.16 2460 10.97 2583 11.52 2660 11.86 2714 6.43 2217 7.56 2285 8.40...
  • Page 45 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 5.95 1994 7.00 2055 7.78 2076 8.55 2118 9.30 2230 10.04 2341 10.54 2412 10.86 2460 5.88 2010 6.92 2072 7.69 2093 8.45 2135...
  • Page 46 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW4-36U4RAA(AUS) CAPACITY: 10.0 kW SHF: 0.78 INPUT:3050 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 47 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW4-36U4RAA(AUS) CAPACITY: 10.0 kW SHF: 0.78 INPUT:3050 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 48 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW4-36U4RAA(AUS) CAPACITY: 10.0 kW SHF: 0.78 INPUT:3050 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 49 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW4-36U4RAA(AUS) CAPACITY: 10.0 kW SHF: 0.78 INPUT:3050 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 50 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW4-36U4RAA(AUS) CAPACITY: 10.0 kW SHF: 0.78 INPUT:3050 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 51 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW4-36U4RAA(AUS) CAPACITY: 10.0 kW SHF: 0.78 INPUT:3050 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 52 4. CAPACITIES AND SELECTION DATA HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 7.95 2761 9.35 2846 10.39 2875 11.42 2933 12.42 3088 13.41 3242 14.08 3340 14.50 3406 7.86 2783 9.24 2869 10.27...
  • Page 53 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 7.28 2503 8.56 2580 9.51 2606 10.45 2659 11.36 2799 12.27 2939 12.88 3027 13.27 3088 7.19 2523 8.46 2601 9.40 2627 10.33 2681...
  • Page 54 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW5-42U4RTA(AUS) CAPACITY: 13.5 kW INPUT:3700 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 55 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW5-42U4RTA(AUS) CAPACITY: 13.5 kW INPUT:3700 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 56 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW5-42U4RTA(AUS) CAPACITY: 13.5 kW INPUT:3700 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 57 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW5-42U4RTA(AUS) CAPACITY: 13.5 kW INPUT:3700 W COMBINATION IDDB （%） (°C) SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 58 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW5-42U4RTA(AUS) CAPACITY: 13.5 kW INPUT:3700 W COMBINATION IDDB (°C) （%） SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 59 4. CAPACITIES AND SELECTION DATA PERFORMANCE DATA (Cooling Operation at Rated Frequency) AMW5-42U4RTA(AUS) CAPACITY: 13.5 kW INPUT:3700 W COMBINATION IDDB （%） (°C) SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF IPT SHC SHF SHC SHF SHC SHF SHC SHF SHC SHF...
  • Page 60 4. CAPACITIES AND SELECTION DATA HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 9.76 3463 11.48 3570 12.76 3606 14.02 3679 15.24 3873 16.46 4067 17.28 4189 17.80 4272 9.64 3490 11.34 3598 12.60...
  • Page 61 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 8.93 3139 10.51 3236 11.67 3269 12.83 3335 13.94 3511 15.06 3686 15.81 3797 16.29 3873 8.82 3164 10.38 3262 11.54 3295 12.68 3362...

  • Page 62: Piping Length Correction Factor

    4. CAPACITIES AND SELECTION DATA 4.2 Piping length correction factor Pipe length L Indoor unit Height difference H Outdoor unit The correction factor is based on the equivalent piping length in meters (EL) and the height between outdoor and indoor units in meters (H). Height difference between indoor unit and outdoor unit (m).

  • Page 63: Correction Factors According To Defrosting Operation

    4. CAPACITIES AND SELECTION DATA The correction factor of height between indoor unit and outdoor unit Height difference 0.01 0.015 0.018 Factor To ensure correct unit selection, consider the farthest indoor unit. NOTE: 1. Above data is assuming that the height difference between indoor unit and outdoor unit is 0m. 2.

  • Page 64: Sound Pressure Data

    5. SOUND PRESSURE DATA 5. Sound pressure data Outdoor unit Model Model NC-70 NC-70 NC-65 NC-65 NC-60 NC-60 NC-55 NC-55 NC-50 NC-50 NC-45 NC-45 NC-40 NC-40 NC-35 NC-35 NC-30 NC-30 NC-25 NC-25 NC-20 NC-20 NC-15 NC -15 Octave band center frequency(Hz) Octave band center frequency(Hz) Model Model...
  • Page 65 5. SOUND PRESSURE DATA Model NC-70 NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 NC-20 NC -15 Octave band center frequency(Hz) Test condition Outdoor: Test condition Duct:...
  • Page 66 5. SOUND PRESSURE DATA Indoor unit Duct Model Model Test condition 1.4m under the unit; 1.0m high from the ground Test condition 1.4m under the unit; 1.0m high from the ground Model Model Test condition 1.4m under the unit; 1.0m high from the ground Test condition 1.4m under the unit;...

  • Page 67: Esp(External Static Pressure) Chart(Duct Type)

    6. ESP(EXTERNAL STATIC PRESSURE) CHART (DUCT TYPE) 6. ESP(External static pressure) chart(Duct type) Standard ESP Chart (10 Pa) Medium High Rated Airflow rate (m /min) High ESP Chart (30 Pa) Rated Medium High Airflow rate (m /min)
  • Page 68 6. ESP(EXTERNAL STATIC PRESSURE) CHART (DUCT TYPE) Standard ESP Chart (0 Pa) limit High Middle High Medium Rated Rated Airflow rate (m /min) High ESP Chart (50 Pa) limit High Rated Medium Airflow rate (m /min)
  • Page 69 6. ESP(EXTERNAL STATIC PRESSURE) CHART (DUCT TYPE) Standard ESP Chart (0 Pa) Limit High Middle Medium Rated limit High 2 2 2 Airflow rate (m /min) High ESP Chart (50 Pa) limit Rated Medium High 3 3 3 Airflow rate (m /min)
  • Page 70 6. ESP(EXTERNAL STATIC PRESSURE) CHART (DUCT TYPE) Standard ESP Chart (0 Pa) Limit High Medium Rated 14.0 16.0 18.0 20.0 10.0 12.0 Airflow rata (m /min) High ESP Chart (40 Pa) Limit Medium High...

  • Page 71: Refrigerant Cycle

    7. REFRIGERANT CYCLE 7. Refrigerant cycle Cooling cycle Heating cycle 4-Way Valve Compressor EEV B Filter EEV A Cooling cycle Heating cycle 4-Way Valve Compressor EEV C EEV B Filter EEV A...
  • Page 72 7. REFRIGERANT CYCLE 27K/36K Indoor unit Outdoor unit Cooling cycle Heating cycle 4-Way Valve Compressor EEV D EEV C EEV B Filter EEV A Indoor unit Cooling cycle Outdoor unit Heating cycle 4-Way Valve Compressor EEV E EEV D EEV C EEV B Filter EEV A...

  • Page 73: Fresh Air Intake Function

    8. FRESH AIR INTAKE FUNCTION 8. Fresh air intake function Duct (18K~24K) Indoor unit can take fresh air from the reserved fresh air intake, the size of the fresh air intake hole is Φ65mm. Please follow the steps below when needed. 1) Cut off the reserved circular metal hole on the base board.

  • Page 74: Wiring Diagram

    9. WIRING DIAGRAM 9. Wiring diagram 9.1 Electrical wiring diagrams Outdoor unit Electric wiring diagram 2281718, A Remark: Dashed parts are not available in this model.
  • Page 75 9. WIRING DIAGRAM Electric wiring diagram 2279674,A Remark: Dashed parts are not available in this model.
  • Page 76 9. WIRING DIAGRAM Electric wiring diagram 2279673,A Remark: Dashed parts are not available in this model.
  • Page 77 9. WIRING DIAGRAM Electric wiring diagram 2282536,A Remark: Dashed parts are not available in this model.
  • Page 78 9. WIRING DIAGRAM Electric wiring diagram 2279679,A...
  • Page 79 9. WIRING DIAGRAM Indoor unit 9K~24K Electric wiring diagram 1992115, D Remark: Dashed parts are not available in some models. Details see the table below. ON/OFF Wired Step Pump WIFI NANOE Display Indoor units model Humidity output motor motor Module Module board controller...

  • Page 80: Control Board Picture

    9. WIRING DIAGRAM 9.2 Control board picture Outdoor unit Control board Description Description AC Lin Electric expansion valve B Sensor signal AC Nin Earth Checker/Computer Compressor EEprom Fan motor 4-Way valve Electric expansion valve A Electric heating belt Electric expansion valve C Communication signal to indoor unit...
  • Page 81 9. WIRING DIAGRAM Control board Description Description AC Lin Electric expansion valve B AC Nin Sensor signal Checker/Computer Earth EEprom Compressor Fan motor 4-Way valve Electric expansion valve A Electric heating belt Electric expansion valve C Communication signal to indoor unit...
  • Page 82 9. WIRING DIAGRAM Control board Description Description AC Lin Electric expansion valve D AC Nin Sensor signal Checker/Computer Earth EEprom Compressor Fan motor 4-Way valve Electric expansion valve A Electric heating belt Electric expansion valve C Bottom hetater Electric expansion valve B Communication signal to indoor unit...
  • Page 83 9. WIRING DIAGRAM Control board Description Description AC Lin Electric expansion valve B AC Nin Sensor signal Checker/Computer Earth Compressor EEprom Fan motor 4-Way valve Electric expansion valve A Electric heating belt Electric expansion valve C Communication signal to indoor unit...
  • Page 84 9. WIRING DIAGRAM 18K/24K/27K/36K Checker board Sensor board Description Gas B/Liquid B/Gas A/Liquid A sensor Discharge sensor /Defrost sensor/Coil sensor/Suction sensor /Outdoor sensor Liquid C/ Gas C sensor Sensor Signal to Main Board Communication signal to main board...
  • Page 85 9. WIRING DIAGRAM Main control board 5 6 7 16 15 13 12 Description Description Compressor Overheat Protection Switch 4-Way Valve Discharge/Defrost/ Coil/Suction/Ambient Compressor Heater-N Sensor Liquid A/Gas A/ Liquid B/Gas B Sensor Compressor Heater-L Liquid C/Gas C/ Liquid D/Gas D Sensor SI-N Electronic Expansion Valve A SI-D...
  • Page 86 9. WIRING DIAGRAM Drive board Description Description DC Fan Signal Reactor L2 IPM-SI Compressor W Compressor U Compressor V Fan Motor Reactor L1...
  • Page 87 9. WIRING DIAGRAM Indoor unit 9K~24K Description Description Out put1 Display interface DC fan motor Wired controller Swing motor Wi-Fi interface Pump motor Water level switch· L,N,SI-IN Coil temperature sensor Room temperature sensor OUT-IN EE-Program...

  • Page 88: Common Wiring

    9. WIRING DIAGRAM 9.3 Common wiring Outdoor unit Terminal NOTE: For some indoor units Terminal A 1(L) 1(L) Power connecting cord Indoor unit A 2(N) 2(N) Terminal 4(SI) 4(SI) Outdoor unit Indoor unit Terminal B 1(L) 1(L) Power connecting cord Indoor unit B 2(N) 2(N)
  • Page 89 9. WIRING DIAGRAM ● Pay attention to the following items while the system is running. Do not touch any of the parts by hand at the discharge gas side, since the compressor chamber and the pipes at the discharge side are heated higher than 90℃. Note：...

  • Page 90: Field Setting

    10. FIELD SETTING 10. Field setting 10.1 DIP setting DIP Switch Setting of Outdoor Unit DIP S5 is invalid for 42K model. TURN ON all power sources before setting. Mark of " " indicates the position of DIP switches. 1. Force defrosting mode By default setting is OFF.
  • Page 91 10. FIELD SETTING 3. Pump down mode (Refrigerant cycle recover) By default setting is OFF. OFF ----Normal mode. ON----Refrigerant recovery mode Operation is valid when dial is switched from OFF to ON state. OPERATION: When the outdoor unit runs in cooling mode, the dial is switched from OFF to ON, then it will start the refrigerant recovery mode at once.

  • Page 92: Running Parameter Query

    10. FIELD SETTING 10.2 Running Parameter Query Outdoor running parameters can be checked by 7 segment display. ● ● ● Decrease Select Increase There are 3 buttons on the 7-segment display board: 1) Select button: Select to display outdoor/indoor unit parameter. "P."...
  • Page 93 10. FIELD SETTING Parameter Parameter Descriptions Descriptions Code Code Unit C fault codes Unit A fault codes Unit C valve actual opening Unit A valve actual opening Unit C liquid pipe temperature Unit A liquid pipe temperature Unit C gas pipe temperature Unit A gas pipe temperature Unit C coil temperature Unit A coil temperature...

  • Page 94: Esp Setting (Duct Type Only)

    10. FIELD SETTING 10.3 ESP setting (Duct type only) The static pressure can be freely adjusted by using specific wire remote controller. Model The range of Function code set ( Btu/h) 0-30, function code value equals 0-30Pa static pressure value [default: 10 (10Pa)] 0-50, function code value equals 12K/18K...

  • Page 95: Indoor Unit Parameter Revision

    10. FIELD SETTING 10.4 Indoor unit parameter revision Internal control parameter adjustment can be performed using wired controller. C-Series wired controller 1) Connecting wired controller with the indoor unit Step 1: Remove the upper cover of the wired controller Upper cover of the wired controller Lower cover of the wired controller Insert a normal screw driver into the position, and gently rotate...
  • Page 96 10. FIELD SETTING E-Series wired controller Upper cover of the wired controller 1) Connecting wired controller with the indoor unit Step 1: Remove the upper cover of the wired controller Lower cover of the wired controller Insert the slotted screwdriver in the slots, and rotate gently to remove the upper NOTE: cover.
  • Page 97 10. FIELD SETTING PARAMETER VALUE&REPRESENTATION PARAMETER PARAMETER NOTE DATA REPRESENTATION CODE DESCRIPTION TYPE (FUNCTION CODE) 0：Cancel Self Recovery of Power Self Recovery of Break function； Integer Power Break 1：Self Recovery of Power Break； others：invalid 0：Centigrade Temperature； Temperature Type Integer 1：Fahrenheit Temperature； others：invalid 0：Default display set temperature；...
  • Page 98 10. FIELD SETTING PARAMETER VALUE&REPRESENTATION PARAMETER PARAMETER NOTE DATA REPRESENTATION CODE DESCRIPTION TYPE (FUNCTION CODE) =0，Access control, fire protection functions are all invalid； =1，Access control1 function is valid； =2，fire protection function is valid； =3，Access control1, fire protection are Access control, fire all valid；...

  • Page 99: Instructions For The Function Setting Of Access Control, Fire Protection, On/Off

    10. FIELD SETTING 10.5 Instructions for the function setting of access control, fire protection, ON/OFF 10.5.1 Factory setting ON/OFF function is disabled as factory default while both the access control and fire protection functions are enabled. To use or cancel the access control / fire protection / (ON/OFF) function, use the wired controller to modify the parameters of indoor unit.
  • Page 100 10. FIELD SETTING When using the door lock function, the red wire should be cut and connected to the door lock control switch attached to it (supplied by user), and the connecting wire should be 22AWG or above. In normal conditions, the unit operates normally once the switch is closed and shuts down once the switch is off.

  • Page 101: Piping Work And Refrigerant Charge

    11. PIPING WORK AND REFRIGERANT CHARGE 11. Piping work and refrigerant charge 11.1 MAX. length allowed Indoor unit Pipe length E Outdoor unit Pipe length A Up to 2 Up to 3 Up to 4 Up to 5 Model indoor indoor indoor indoor...

  • Page 102: Air Tight Test

    11. PIPING WORK AND REFRIGERANT CHARGE 11.3 Air tight test Do use nitrogen when performing air-tight test. Connect the gauge manifold using charging hoses with a nitrogen cylinder to the check joints of the liquid line and the gas line stop valves. Perform the air-tight test. Don't open the gas line stop valves. Apply nitrogen gas pressure of 4.15MPa.Check for any gas leakage at the flare nut connections, or brazed parts by gas leak detector or foaming agent.

  • Page 103: Installation Tools And Installation Flow Chart

    12. INSTALLATION TOOLS AND INSTALLATION FLOW CHART 12. Installation tools and installation flow chart 12.1 Necessary tools and instrument list for installation Tool Tool Tool Tool Handsaw Copper Pipe Bender Spanner Leveler Phillips Clamper for Solder- Manual Water Pump Charging Cylinder Screwdriver less Terminals Hoist...

  • Page 104: Installation Flow Chart

    12. INSTALLATION TOOLS AND INSTALLATION FLOW CHART 12.2 Installation flow chart Drawing audit Preparation before installation Confirm installation location of indoor unit and outdoor unit Indoor unit installation Drain piping Refrigerant piping Duct installation Electrical wiring installation installation Heat insultation Outdoor unit installation Vacuum pumping and leakage detection Additional refrigerant charge...

  • Page 105: Control Mode

    13. CONTROL MODE 13. Control mode 13.1 Outdoor unit 1) Cooling Anti-freeze Protection To prevent freezing caused by too low temperature of indoor evaporator, the air conditioner will implement real-time detection over the indoor coil temperature. If the indoor coil temperature is too low, the compressor will be prohibited from increasing the frequency or decrease the frequency even shut down automatically.
  • Page 106 13. CONTROL MODE b. Mode conflict The operating mode of outdoor unit is decided by the operating mode of the indoor unit firstly booted. Indoor unit subsequently booted will firstly determine whether it’s own mode is in conflict with the outdoor mode. If so, the indoor unit will automatically shut down after three beeps;...

  • Page 107: Indoor Unit

    13. CONTROL MODE 13.2 Indoor unit mode control Main general technical parameters (1) Remote receiver distance: 8 m. (2) Remote receiver angle: Less than 80 degrees. (3) Temperature control accuracy: ±1℃. (4) Time error: Less than 1%. Functions of the control function 2.1 Emergency switch Press the emergency button can realize the starting or closing Machine, starting up according to the automatic mode of operation.
  • Page 108 13. CONTROL MODE Sleep (1) In the heating, cooling or dehumidifying mode, press the “Sleep” button on the remote controller to start or cancel the sleep function in turn, and at the same time the sleep icon on the display screen will be on or off accordingly.
  • Page 109 13. CONTROL MODE Blow waste heating and waste cooling function The heating mode, remote shutdown, such as indoor heat exchanger temperature is higher, the wind blowing out opportunities continue to run the waste heat. Cool and dehumidification mode, after the compressor stops, indoor unit will continue to set the speed of operation for a period of time.

  • Page 110: Sensor Parameter

    14. SENSOR PARAMETER 14. Sensor parameter 1. THE PARAMETER OF OUTDOOR COMPRESSOR DISCHARGE TEMPERATURE SENSOR: =187.25K±6.3%；R =3.77K±2.5K；B0/100=3979K±1%) DR: Deviation Rate DR(MIN)%=（Rmin-Rnom）/Rnom*100% DR(MAX)%=（Rmax-Rnom）/Rnom*100% T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 908.2603 985.5274 1065.1210...
  • Page 111 14. SENSOR PARAMETER T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 71.2227 75.3122 79.3848 -5.43 5.13 68.1036 71.9808 75.8414 -5.39 5.09 65.1373 68.8141 72.4746 -5.34 5.05 62.3155 65.8032 69.2746 -5.30 5.01 59.6306 62.9395...
  • Page 112 14. SENSOR PARAMETER T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 8.0951 8.3705 8.6440 -3.29 3.16 7.8290 8.0926 8.3544 -3.26 3.13 7.5730 7.8252 8.0758 -3.22 3.10 7.3264 7.5679 7.8078 -3.19 3.07 7.0891 7.3202...
  • Page 113 14. SENSOR PARAMETER 2. THE PARAMETER OF THE OTHER SENSOR IN INDOOR AND OUTDOOR UNIT： =15K±2%；B0/100=3450K±2%） （R T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 60.78 64.77 68.99 -6.16 6.12 57.75 61.36 65.16...
  • Page 114 14. SENSOR PARAMETER T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 5.667 5.882 6.103 -3.66 3.62 5.449 5.664 5.886 -3.80 3.77 5.240 5.456 5.678 -3.96 3.91 5.048 5.260 5.478 -4.03 3.98 4.864 5.072...
  • Page 115 14. SENSOR PARAMETER T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 0.8570 0.9246 0.9971 -7.31 7.27 0.8316 0.8977 0.9687 -7.36 7.33 0.8071 0.8717 0.9412 -7.41 7.38 0.7834 0.8466 0.9146 -7.47 7.43 0.7604 0.8223...
  • Page 116 14. SENSOR PARAMETER B25/50 = 3950K±3% = 15KΩ±3% Temp Resistance（KΩ） Rmax R(t)Normal Rmin （℃） 250.952 230.189 209.426 236.568 217.234 197.900 223.091 205.085 187.078 210.459 193.686 176.913 198.614 182.987 167.360 187.503 172.942 158.380 177.077 163.506 149.935 167.288 154.639 141.989 158.095 146.303 134.511 149.458 138.464...
  • Page 117 14. SENSOR PARAMETER Temp Resistance（KΩ） Rmax R(t)Normal Rmin （℃） 24.433 23.477 22.521 23.315 22.426 21.537 22.254 21.428 20.602 21.246 20.478 19.710 20.288 19.575 18.862 19.377 18.715 18.053 18.511 17.897 17.283 17.688 17.119 16.550 16.903 16.377 15.851 16.159 15.672 15.185 15.450 15.000 14.550 14.802...
  • Page 118 14. SENSOR PARAMETER Temp Resistance（KΩ） Rmax R(t)Normal Rmin （℃） 3.518 3.323 3.128 3.397 3.206 3.015 3.280 3.094 2.908 3.168 2.986 2.804 3.061 2.883 2.705 2.957 2.783 2.609 2.858 2.688 2.518 2.762 2.596 2.430 2.670 2.508 2.346 2.582 2.423 2.264 2.496 2.341 2.186 2.414...

  • Page 119: Troubleshooting

    15. TROUBLESHOOTING 15. Troubleshooting 15.1 Trouble guide Troubleshooting for normal malfunction Troubleshooting Possible Reasons of Abnormality How to Deal With 1. Check power supply circuit; 2. Measure insulation resistance to 1. Power supply failure; ground to see if there is any 2.
  • Page 120 15. TROUBLESHOOTING How to check fault codes Troubleshooting according to fault codes When the air conditioner failure occurs, the fault code will display on control board, or maintenance board. Outdoor unit Fault code displayed by LED lamps on outdoor main control board. 18K~27K There are 3 LED lamps on control board, LED1, LED2 and LED3.
  • Page 121 15. TROUBLESHOOTING Drive failure V17: Ten’s place V18: Unit’s place Main control failure V15: Ten digit number V16: Single digit number For 18K~36K, fault codes also can be checked by 7 segment display on the checker board. Fault codes will display directly when fault occurs.
  • Page 122 15. TROUBLESHOOTING Main control failure Fault code will display on 7 segment display on outdoor control board. 7-segment display Drive fault code display The lamp of drive board flash shows failure occur. The drive failure lamp flicking times shows the failure code. Drive failure lamp The drive failure lamp flicking times shows the failure code.
  • Page 123 15. TROUBLESHOOTING Indoor unit Fault codes will be displayed on wired controller. MODEL:YXE-C01U1(E) ERROR INDICATOR ERROR CODE When the air conditioner malfunctions, will be displayed on the LCD, and error codes will appear and blink. Fault code displays on wired controller MODEL: YXE-E01U(E) Error code When the air conditioner malfunctions,...

  • Page 124: Fault Codes

    15. TROUBLESHOOTING 15.2 Fault codes Table 1 Outdoor fault codes Fault Fault description Possible reasons for abnormality How to deal with Remarks code 1.Reconnect the outdoor 1.The outdoor ambient temperature ambient temperature sensor; Outdoor ambient sensor is connected loosely; 2.Replace the outdoor ambient temperature sensor 2.The outdoor ambient temperature temperature sensor...
  • Page 125 15. TROUBLESHOOTING Fault Fault description Possible reasons for abnormality How to deal with Remarks code 1. Reconnect the wiring of the 1. The wiring of the overload overload protector; protector is connected loosely. 2. Replace the overload 2. The overload protector fails . protector;...
  • Page 126 15. TROUBLESHOOTING Fault Fault description Possible reasons for abnormality How to deal with Remarks code 1. Reconnect the wiring of the 1. The wiring of the sensor for sensor for the expansion valve the expansion valve D (liquid D (liquid pipe); Expansion valve D pipe) is connected loosely;...
  • Page 127 15. TROUBLESHOOTING Fault Fault description How to deal with Possible reasons for abnormality Remarks code Check to confirm whether 1. The refrigerant of the unit is not there is leakage exist; enough; Add some refrigerant 2. The refrigerant of the unit is not Discharge referring to the installation enough ;...
  • Page 128 15. TROUBLESHOOTING Table 2 Overload in cooling mode Overload in cooling mode The root cause Corrective measure Discharge the refrigerant, and recharge The refrigerant is excessive. the refrigerant referring to the rating label. The outdoor ambient temperature is too high. Please use it within allowable temperature range Short-circuit occurs in the air outlet and air inlet of Adjust the installation of the outdoor unit...
  • Page 129 15. TROUBLESHOOTING Table 4 Analysis of the driving board fault(18K~24K) Fault Fault description Possible reasons for abnormality How to deal with code Inverter DC voltage overload fault 1. Power supply input is too high 1. Check the power supply; Inverter DC low voltage fault or too low;...
  • Page 130 15. TROUBLESHOOTING Fault Fault description How to deal with Possible reasons for abnormality code 1. Change the fan motor; 1. The fan motor system overloads; 2. Change the drive board; Inverter software 2. The drive board falis; 3. Change the fan motor. over-current 3.
  • Page 131 15. TROUBLESHOOTING Table 5 Analysis of the driving board fault(36K/42K) Fault Fault description How to deal with Possible reasons for abnormality code 1. Check the compressor wire; 1. Compressor wire is not connected properly; 2. Change the driver board; 2. Bad driver board components; Q axis current 3.
  • Page 132 15. TROUBLESHOOTING Fault Fault description How to deal with Possible reasons for abnormality code 1. Voltage input is too low; 1. Check the power supply; Low DC voltage 200V 2. Drive board fault. 2. Change the driver board; Driver board read EE 1.
  • Page 133 15. TROUBLESHOOTING Table 6 Limitation Code Definitions Descriptions Code When overcurrent occurs, stop the frequency from Current control increasing. When overcurrent occurs, reduce the frequency. Current control When the temperature of IPM module is too high, Frequency control to keep appropriate temperature stop the frequency from increasing.
  • Page 134 15. TROUBLESHOOTING Table 7 Limitation Code Fault Fault Description Possible Reason of Abnormality How to Deal With Remarks code 1.1 Check whether there are something to block the drain hose or the height of the drain hose is too high; 1.
  • Page 135 15. TROUBLESHOOTING Fault Fault Description Possible Reason of Abnormality How to Deal With Remarks code EE in MCU is failure, the unit can Indoor EEPROM run, but the function user has set Replace EE data in MCU. Data 2 error is ineffective.

  • Page 136: Checking Components

    16. CHECKING COMPONENTS 16. Checking components 16.1 Check refrigerant system TEST SYSTEM FLOW Conditions: ① Compressor is running. ② The air condition should be installed in good ventilation. Tool: Pressure Gauge Technique: ① see ② feel ③ test See ----- Tube defrost. Feel ----- The difference between tube’s temperature.

  • Page 137: Check Parts Unit

    16. CHECKING COMPONENTS Heating mode Test system pressure. Is the high The pressure on the pressure normal at high side. service part ? Recharge refrigerant Remove the back after air purging with The pressure on the panel."see"the the vacuum low side. capillary tube1 and pump.
  • Page 138 16. CHECKING COMPONENTS Test in voltage(For DC motor) TOOL: Multimeter. Insert screwdriver to rotate indoor fan motor slowly for 1 revolution or over, and measure voltage “YELLOW” and “GND” on motor. The voltage repeat 0V DC and 5V DC. NOTE: Please don’t hold motor by lead wires. Please don’t plug IN/OUT the motor connector while power ON.

  • Page 139: Disassembly And Assembly For Compressor And Motor

    17. DISASSEMBLY PROCEDURE 17. Disassembly procedure Disassembly and assembly for compressor and motor The special tools for compressor & motor disassembly and assembly： Tool Hexagon Screwdriver Hexagon Socket Outdoor unit 18K~36K Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free.
  • Page 140 17. DISASSEMBLY PROCEDURE Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free. Step Illustration Handling Instruction 1. Remove the top cover, handle 1. Remove the and valve cover; external casing 2.
  • Page 141 17. DISASSEMBLY PROCEDURE Indoor unit Removal and Assembly of Fan Motor Important: Before removing the fan, make sure power to the system is disconnected. Step Illustration Handling Instruction Use screwdriver to remove the electric 1. Unplug the motor box cover and unplug the motor cables cables in electric box.
  • Page 142 We reserve the right to change the manual without prior notice.
  • Page 143 Version: 1.0 Hisense Corporation...
  • Page 144 MODEL: Note: “ ** ” mean code of Front Panel (See in 3-1 .Product Pictures). AST-09UR4RME**01 AST-12UR4RME**02 AST-18UR4RXA**02 AST-24UR4RBB**03 AS-28UW4RKB**00...
  • Page 145 Contents 1. Safety Considerations ....................4 2. Pro duct Picture and Drawing ..................12 2-1. Product Pictures ....................12 2-2. Product dimensions ..................... 12 3. Installation Instruction ....................13 3-1. Installation Place and Condition ................ 13 3-2. Electric Wiring Diagram ..................14 3-3.

  • Page 146: Safety Considerations

    1. Safety Considerations IMPORTANT! Please Read Before Starting This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system, so it operates safely and efficiently. For safe installation and trouble-free operation, you must: ●...
  • Page 147 When Installing ● In a Ceiling or Wall Make sure the ceiling/wall is strong enough to hold the unit’s weight. It may be necessary to construct a strong wood or metal frame to provide added support. ● In a Room Properly insulate any tubing run inside a room to prevent “sweating”...
  • Page 148 The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations. Information on servicing 6-1 Checks to the area Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimized.
  • Page 149 – Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected; – Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant containing components, unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded.
  • Page 150 Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used. 11.Leak detection methods The following leak detection methods are deemed acceptable for systems containing flammable refrigerants: –...
  • Page 151 The system shall be leak tested on completion of charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving the site. 14.Decommissioning Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail.
  • Page 152 The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant Waste Transfer Note arranged. Do not mix refrigerants in recovery units and especially not in cylinders. If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that flammable refrigerant does not remain within the lubricant.
  • Page 153 Explanation of symbols displayed on the indoor unit or outdoor unit. This symbol shows that this appliance uses a flammable refrigerant. WARNING If the refrigerant is leaked and exposed to an external ignition source, there is a risk of fire. This symbol shows that this appliance uses a flammable refrigerant.

  • Page 154: Pro Duct Picture And Drawing

    2. Pro duct Picture and Drawing 2-1. Product Pictures Indoor units: Front Panel View 2-2. Product dimensions Indoor units: Model W (mm) H (mm) D (mm) AST-09UR4RMEDJ01 AST-12UR4RMEDJ02 AST-18UR4RXADJ02 AST-24UR4RBBDJ03 1087 AST-28UW4RKBDJ00 1087...

  • Page 155: Installation Instruction

    3. Installation Instruction To prevent abnormal heat generation and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surrounding the air conditioner in a way that may clock air flow. And, more than 1 meter away from any antenna or power lines or connecting wires used for TV, radio, telephone, security system, or intercom.

  • Page 156: Electric Wiring Diagram

    3-2. Electric Wiring Diagram Model Indoor Unit DIAGRAM AST-09UR4RME**01 2086708 AST-12UR4RME**02 2086708 AST-18UR4RXA**02 2086708 AST-24UR4RBB**03 2086708 Note: “ ** ” mean code of Front Panel. Indoor Unit: 2086708...

  • Page 157: Test Running

    3-3. Test Running △ Check after Installation Items to be checked Possible malfunction Has it been fixed firmly? The unit may drop, shake or emit noise. Have you done the refrigerant leakage test? It may cause insufficient cooling(heating)capacity Is heat insulation sufficient? It may cause condensation and dripping.

  • Page 158: Electrical Characteristics

    4. Electrical Characteristics 4-1. Print Circuit Board (Indoor) Model Indoor unit AST-09UR4RME**01 2157689 AST-12UR4RME**02 2157689 AST-18UR4RXA**02 2110521 AST-24UR4RBB**03 2157689 AS-28UW4RKB**00 2157689 Note: 、 “ ** ” mean code of Front Panel 、 These colds are not spare parts’ cold, Please don’t use these colds to order spare parts. Model of indoor 2157689 Wifi Interface...
  • Page 159 2110521 Interface of PG motor(WHITE) Out input interface Protective tube Wiring control interface(WHITE) Feedback from PG motor(WHITE) Up＆down swing Pipe temperature sensor Wifi interface Switch button Ifd control interface Room temperature sensor Display interface Left＆right swing Humidity detection interface...

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