Hisense AMW2-18U4RXC Technical & Service Manual
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Hisense AMW2-18U4RXC Technical & Service Manual

Hisense AMW2-18U4RXC Technical & Service Manual

Multi-split type air conditioner
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TECHNICAL & SERVICE MANUAL
Models:
<Outdoor Unit>
AMW2-12U4RGC
AMW2-14U4RGC
AMW2-18U4RXC
AMW3-14U4RJC
AMW3-18U4RJC
AMW3-21U4RJC
AMW3-24U4RJC
AMW4-24U4RJC
AMW4-27U4RJC
AMW5-30U4RQC
AMW5-36U4RQC
—MULTI-SPLIT TYPE AIR CONDITIONERS
R32
R410A
R410A
R410A
V3.0

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Summary of Contents for Hisense AMW2-18U4RXC

  • Page 1 R410A R410A R410A TECHNICAL & SERVICE MANUAL V3.0 —MULTI-SPLIT TYPE AIR CONDITIONERS Models: <Outdoor Unit> AMW2-12U4RGC AMW2-14U4RGC AMW2-18U4RXC AMW3-14U4RJC AMW3-18U4RJC AMW3-21U4RJC AMW3-24U4RJC AMW4-24U4RJC AMW4-27U4RJC AMW5-30U4RQC AMW5-36U4RQC...

  • Page 3: Model Comparison Table

    Model Comparison Table Factory Model Category Model in Set AMW2-12U4RGC 2AMW35U4RGC AMW2-14U4RGC 2AMW42U4RGC AMW2-18U4RXC 2AMW52U4RXC AMW3-14U4RJC 3AMW62U4RJC AMW3-18U4RJC 3AMW72U4RJC Multi-Split Outdoor Model AMW3-21U4RJC 3AMW62U4RJC AMW3-24U4RJC 3AMW72U4RJC AMW4-24U4RJC 4AMW72U4RJC AMW4-27U4RJC 4AMW81U4RJC AMW5-30U4RQC 5AMW90U4RQC AMW5-36U4RQC 5AMW105U4RQC...

  • Page 4: Safety Summary

    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: Checking Product Received

    ● 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 ..........................3 1.3 Nomenclature ..........................3 1.4 Unit installation ..........................4 1.5 Working range..........................4 1.6 Product appearance ........................5 2. Outlines and dimensions ........................6 3.

  • Page 7: General

    1. GENERAL 1. General 1.1 Features  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: Optional Remote Controller

    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: Product Lineup

    1. GENERAL 1.2 Product lineup Model(Btu/h) Type ● ● ● Up to 2 IDUs ● ● ● ● Up to 3 IDUs ● ● Up to 4 IDUs ● ● Up to 5 IDUs ● : available model 1.3 Nomenclature A M W 2 - 12 U 4 R G C Series Outdoor Unit Code...

  • Page 10: Unit Installation

    1. GENERAL 1.4 Unit installation With the DC inverter technology, one outdoor unit can be connected with 4 indoor units at most. The combination rate range is from 80% to 130%. Model (Btu/h) Max. Combined Quantity of Indoor Units 12K/14K/18K 14K/18K/21K/24K 24K/27K 30K/36K...

  • Page 11: Product Appearance

    1. GENERAL 1.6 Product appearance Model (Cooling Capacity: Btu/h) Outdoor unit 12K/14K Up to 3 IDUs 21K/24K Up to 4 IDUs 24K/27K Up to 5 IDUs 30K/36K...

  • Page 12: Outlines And Dimensions

    2. OUTLINES AND DIMENSIONS 2. Outlines and dimensions 12K/14K Unit: (mm)
  • Page 13 2. OUTLINES AND DIMENSIONS Unit: (mm)
  • Page 14 2. OUTLINES AND DIMENSIONS Up to 3 indoor units series Unit: (mm) 21K/24K...
  • Page 15 2. OUTLINES AND DIMENSIONS Unit: (mm) Up to 4 indoor units series 24K/27K...
  • Page 16 2. OUTLINES AND DIMENSIONS Unit: (mm) Up to 5 indoor units series 30K/36K Electric box Liquid pipe Gas pipe Air inlet Drain pipe 4-11×17 Hole Air outlet...

  • Page 17: 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) 12K/14K/18K 220-240 21K/24K/27K 220-240 30K/36K 220-240 NOTE: 1. The above compressor data is based on 100% capacity combination of indoor units at the rated operating frequency.

  • Page 18: 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 19 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 20 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 21 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 22 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 23 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 24 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 25: Heating Performance Data

    4. CAPACITIES AND SELECTION DATA HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR （%） DB(℃） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 5.06 1479 5.95 1524 6.61 1540 7.27 1571 7.90 1654 8.53 1737 8.96 1789 9.23 1824 5.00 1491 5.88 1537 6.54...
  • Page 26 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR （%） DB(℃） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 4.63 1340 5.45 1382 6.05 1396 6.65 1424 7.23 1499 7.81 1574 8.20 1621 8.44 1654 4.58 1351 5.38 1393 5.98 1407 6.57 1436...
  • Page 27 4. CAPACITIES AND SELECTION DATA 14K (Up to 2 indoor units series) 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...
  • Page 28 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 29 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 30 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 31 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 32 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 33 4. CAPACITIES AND SELECTION DATA 14K (Up to 2 indoor units series) HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR （%） DB(℃） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 3.25 3.83 4.25 4.67 5.08 5.49 1044 5.76 1075 5.93 1097 3.21 3.78 4.20...
  • Page 34 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR （%） DB(℃） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 2.98 3.50 3.89 4.28 4.65 5.02 5.27 5.43 2.94 3.46 3.85 4.23 4.59 4.96 5.21 5.36 1002 2.91 3.42 3.80 4.18 4.54 4.90 5.15...
  • Page 35 4. CAPACITIES AND SELECTION DATA 14K (Up to 3 indoor units series) 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...
  • Page 36 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 37 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 38 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 39 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...
  • 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 14K(Up to 3 indoor units series) HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 3.33 3.91 1008 4.35 1018 4.78 1039 5.19 1094 5.61 1149 5.89 1183 6.06 1207...
  • Page 42 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 3.04 3.58 3.98 4.37 4.75 5.13 1041 5.39 1072 5.55 1094 3.01 3.54 3.93 4.32 4.69 1000 5.07 1050 5.32 1081 5.48 1103 2.97...
  • Page 43 4. CAPACITIES AND SELECTION DATA 18K(Up to 2 indoor units series) 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...
  • Page 44 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 45 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 46 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 47 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 48 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 49: Heating Performance Data

    5. CAPACITIES AND SELECTION DATA 18K(Up to 2 indoor units series) HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR （%） DB(℃） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 3.76 1240 4.42 1278 4.91 1291 5.40 1318 5.87 1387 6.34 1456 6.66 1500 6.86...
  • Page 50 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR （%） DB(℃） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 3.44 1124 4.05 1159 4.50 1171 4.94 1194 5.37 1257 5.80 1320 6.09 1360 6.27 1387 3.40 1133 4.00 1168 4.44 1180 4.88 1204...
  • Page 51 4. CAPACITIES AND SELECTION DATA 18K (Up to 3 indoor units series) 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...
  • Page 52 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 53 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 54 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 55 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 56 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...
  • Page 57 4. CAPACITIES AND SELECTION DATA 18K(Up to 3 indoor units series) HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 3.97 1272 4.67 1312 5.19 1325 5.70 1352 6.20 1423 6.69 1494 7.03 1539 7.24...
  • Page 58 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 3.04 3.58 3.98 4.37 4.75 5.13 1041 5.39 1072 5.55 1094 3.01 3.54 3.93 4.32 4.69 1000 5.07 1050 5.32 1081 5.48 1103 2.97...
  • Page 59 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 60 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 61 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 62 4. CAPACITIES AND SELECTION DATA Cooling Operation PERFORMANCEDATA 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 63 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 64 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 65: Heating Performance Data

    4. CAPACITIES AND SELECTION DATA HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR （%） DB(℃） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 5.06 1479 5.95 1524 6.61 1540 7.27 1571 7.90 1654 8.53 1737 8.96 1789 9.23 1824 5.00 1491 5.88 1537 6.54...
  • Page 66 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR （%） DB(℃） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 4.63 1340 5.45 1382 6.05 1396 6.65 1424 7.23 1499 7.81 1574 8.20 1621 8.44 1654 4.58 1351 5.38 1393 5.98 1407 6.57 1436...
  • Page 67 4. CAPACITIES AND SELECTION DATA 24K (Up to 3IDUs) 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...
  • Page 68 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 69 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 70 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 71 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 72 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 73 4. CAPACITIES AND SELECTION DATA 24K (Up to 3 IDUs) HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） (%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 5.78 1872 6.80 1930 7.56 1949 8.31 1989 9.03 2093 9.75 2198 10.24 2264 10.55 2309...
  • Page 74 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR （%） DB(℃） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 5.29 1697 6.23 1749 6.92 1767 7.60 1803 8.26 1898 8.92 1993 9.37 2052 9.65 2093 5.23 1710 6.15 1763 6.84 1781 7.51 1817...
  • Page 75 4. CAPACITIES AND SELECTION DATA 24K (Up to 4 IDUs) 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...
  • Page 76 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 77 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...
  • Page 78 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 79 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 80 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 81: Heating Performance Data

    4. CAPACITIES AND SELECTION DATA 24K (Up to 4 IDUs) HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） (%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 5.78 1804 6.80 1860 7.56 1879 8.31 1917 9.03 2018 9.75 2119 10.24 2183 10.55 2226...
  • Page 82 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） (%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 5.29 1636 6.23 1686 6.92 1703 7.60 1738 8.26 1829 8.92 1921 9.37 1979 9.65 2018 5.23 1649 6.15 1700 6.84 1717 7.51 1752...
  • Page 83 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 84 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 85 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 86 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 87 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 88 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 89 4. CAPACITIES AND SELECTION DATA HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 6.51 2054 7.65 2118 8.50 2139 9.35 2183 10.16 2298 10.97 2412 11.52 2485 11.86 2535 6.43 2071 7.56 2135 8.40 2156...
  • Page 90 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 5.95 1862 7.00 1920 7.78 1939 8.55 1979 9.30 2083 10.04 2187 10.54 2253 10.86 2298 5.88 1877 6.92 1935 7.69 1955 8.45 1995 9.19...
  • Page 91 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 92 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 93 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 94 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 95 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 96 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 97 4. CAPACITIES AND SELECTION DATA HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 7.95 2639 9.35 2721 10.39 2748 11.42 2804 12.42 2952 13.41 3099 14.08 3192 14.50 3256 7.86 2660 9.24 2743 10.27...
  • Page 98 4. CAPACITIES AND SELECTION DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 7.28 2392 8.56 2466 9.51 2491 10.45 2542 11.36 2676 12.27 2810 12.88 2894 13.27 2952 7.19 2412 8.46 2486 9.40 2511 10.33 2563...
  • Page 99 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 100 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 101 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 102 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 103 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 104 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 105 4. CAPACITIES AND SELECTION DATA HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 7.95 2639 9.35 2721 10.39 2748 11.42 2804 12.42 2952 13.41 3099 14.08 3192 14.50 3256 7.86 2660 9.24 2743 10.27...
  • Page 106 4. CAPACITIES AND SELECTION DATA HEATING PERFORMANCE DATA OUTDOOR WB(℃） COMBINATION INDOOR DB(℃） （%） INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT 7.28 2392 8.56 2466 9.51 2491 10.45 2542 11.36 2676 12.27 2810 12.88 2894 13.27 2952 7.19 2412 8.46 2486 9.40...

  • Page 107: 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 108: Correction Factors According To Defrosting Operation

    4. CAPACITIES AND SELECTION DATA Heating Series Model Up to 2 IDUs 0.85 1.00 0.96 0.92 0.88 12K~18K 0.94 0.93 0.97 0.96 0.90 0.89 1.00 14K/18K Up to 3 IDUs 21K/24K 1.00 0.92 0.88 0.85 0.96 0.95 1.00 0.98 0.91 24K/27K 0.97 0.96 0.94...
  • Page 109 4. CAPACITIES AND SELECTION DATA Up to 2 IDUs/3 IDUs series Outdoor Temperature(℃WB) 0.81 Correction Factor 0.95 0.95 0.91 1.05 0.95 0.85 0.75 Outdoor Temperature(℃WB) Up to 4 IDUs/5 IDUs series Outdoor Temperature(℃WB) 0.88 Correction Factor 0.99 0.97 0.93 0.85 0.95 0.87 1.05...

  • Page 110: Sound Pressure Data

    5. SOUND PRESSURE DATA 5. Sound pressure data Outdoor unit Up to 2 IDUs Series (18K) Model Up to 2 IDUs Series (12K/14K) 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...

  • Page 111: Test Condition

    5. SOUND PRESSURE DATA Model Up to 4 IDUs Series(24K/27K) Model Up to 5 IDUs Series(30K/36K) 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)

  • Page 112: Refrigerant Cycle

    6. REFRIGERANT CYCLE 6. Refrigerant cycle Cooling cycle Heating cycle 4-Way Valve Compressor EEV B Filter EEV A Up to 2 IDUs series(12K/14K/18K) Cooling cycle Heating cycle 4-Way Valve Compressor EEV C EEV B Filter EEV A Up to 3 IDUs series(14K/18K/21K/24K)
  • Page 113 6. REFRIGERANT CYCLE Cooling cycle Heating cycle INDOOR UNIT OUTDOOR UNIT 4-Way Valve Compressor EEV D EEV C Filter EEV B EEV A Up to 4 IDUs Series(24K/27K) Cooling cycle Heating cycle INDOOR UNIT OUTDOOR UNIT 4-Way Valve Compressor EEV E EEV D EEV C EEV B...

  • Page 114: Wiring Diagram

    7. WIRING DIAGRAM 7. Wiring diagram 7.1 Electrical wiring diagrams Up to 2 IDUs Series(12K/14K/18K) Electric wiring diagram 2204398, F 1(L) 2(N) 1(L) 2(N) 4(SI) 1(L) 2(N) 4(SI) Remark: Dashed parts are not available in some models. Details see the table below. Model Service Window 4-Way Valve...
  • Page 115 7. WIRING DIAGRAM Up to 3 IDUs Series(14K/18K/21K/ 24K) Electric wiring diagram 2228268,D...
  • Page 116 7. WIRING DIAGRAM Up to 4 IDUs Series(24K/ 27K) Electric wiring diagram 2270468,B Note: Bottom heater is invalid in this model.
  • Page 117 7. WIRING DIAGRAM Up to 5 IDUs Series(30K/ 36K) Electric wiring diagram 2341747,C Note: Bottom heater is invalid in this model.

  • Page 118: Control Board Picture

    7. WIRING DIAGRAM 7.2 Control board picture Up to 2 IDUs Series(12K/14K/18K) Description Description SI-A DC Fan Earth Electric Expansion Valve-A Electronic Expansion Valve-B AC IN-L To sensor board AC IN-N Checker/Computer Bridge Rectifier IGBT EEPROM Program Diode 4-WAY Valve Heater Heater Base Compressor V...
  • Page 119 7. WIRING DIAGRAM Sensor board Description Gas B Sensor Liquid B/ Gas A/Liquid A Sensor Discharge Sensor Coil/Suction/Ambient Temperature Sensor Sensor Signal to Main Board...
  • Page 120 7. WIRING DIAGRAM Up to 3 IDUs Series(14K/18K21K/24K) Description Description AC Lin Electronic expansion valve B AC Nin Sensor signal Earth Checker / Computer Compressor EEPROM Fan Motor 4-way valve Electronic expansion valve A Electric Heating Belt Communication Signal to Indoor Unit Electronic expansion valve C...
  • Page 121 7. WIRING DIAGRAM Sensor board Maintenance 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 122 7. WIRING DIAGRAM Up to 4 IDUs Series(24K/27K) 11 12 13 Description Description Sensor signal AC IN-N Electric Expansion Valve-D AC IN-L Communication signal to indoor Electric Expansion Valve-B Electric Expansion Valve-C Base Heater Electric heating belt Electric Expansion Valve-A 4-WAY Valve Fan motor EEPROM Program...
  • Page 123 7. WIRING DIAGRAM Sensor board Maintenance 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/Liquid D/ Gas D sensor Sensor Signal to Main Board Communication signal to main board...
  • Page 124 7. WIRING DIAGRAM Up to 5 IDUs Series(30K/36K) 21 20 19 Description Description Gas-E/Liquid-E sensor AC IN-N AC IN-L Overheat protector SI-E Gas-B/Liquid-B/Gas-A/Liquid-A sensor Checker/Computer SI-A/SI-B/SI-C/SI-D Base heater Awatcher Electric heating belt Flash Electric Expansion Valve-E 4-WAY valve Electric Expansion Valve-D EEPROM program DC Fan motor Electric Expansion Valve-B...
  • Page 125 7. WIRING DIAGRAM Maintenance board Communication signal to main board...

  • Page 126: Common Wiring

    7. WIRING DIAGRAM 7.3 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 127 7. WIRING DIAGRAM Note： Follow local codes and regulations when select field wires, and all the above are the minimum wire size. Use the wires which are not lighter than the ordinary polychloroprene sheathed flexible cord. (Cord designation H07RN-F). The wire sizes marked with *1 in the above table are selected at the maximum current of the unit according to the National Standard, EN60335-1.

  • Page 128: Field Setting

    8. FIELD SETTING 8. Field setting 8.1 DIP setting DIP Switch Setting of Outdoor Unit(21K/24K/27K) TURN ON all power sources before setting. Mark of " " indicates the position of DIP switches. 1. Force defrosting mode By default setting is OFF. OFF -- Automatic defrosting mode ON ---- Manual defrosting mode Operation is valid when the dial is switched from OFF to ON state.
  • Page 129 8. FIELD SETTING Step 3: Switch on the machine power. Step 4: Switch S4-2 to ON position on the checker board, the outdoor unit starts, and the current frequency value is displayed on the LED digital tube of the checker board. Step 5: The frequency value will keep changing until "CLOS"...

  • Page 130: Running Parameter Query

    8. FIELD SETTING 8.2 Running Parameter Query For up to 3 IDUs/ up to 4 IDUs/ up to 5 IDUs series, outdoor running parameters can be checked by 7 segment display. ● ● ● Decrease Select Increase There are 3 buttons on the digital display board: 1) Select button: Select to display outdoor/indoor unit parameter.
  • Page 131 8. FIELD SETTING Parameter Parameter Descriptions Descriptions Code Code Unit C fault codes Unit E fault codes Unit C valve actual opening Unit E valve actual opening Unit C liquid pipe temperature Unit E liquid pipe temperature Unit C gas pipe temperature Unit E gas pipe temperature Unit C coil temperature Unit E coil temperature...

  • Page 132: Piping Work And Refrigerant Charge

    9. PIPING WORK AND REFRIGERANT CHARGE 9. Piping work and refrigerant charge 9.1 MAX. length allowed Indoor unit Pipe length E Outdoor unit Pipe length A Up to 2 Up to 4 Up to 3 Up to 5 indoor indoor Model indoor units indoor units...

  • Page 133: Additional Refrigerant Charge

    9. PIPING WORK AND REFRIGERANT CHARGE 9.3 Additional refrigerant charge Although refrigerant has been charged into this unit, additional refrigerant charge is required according to piping length. • The additional refrigerant precharge quantity should be determined and charged into the system according to the following procedure.

  • Page 134: Installation Tools And Installation Flow Chart

    10. INSTALLATION TOOLS AND INSTALLATION FLOW CHART 10. Installation tools and installation flow chart 10.1 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 135: Installation Flow Chart

    10. INSTALLATION TOOLS AND INSTALLATION FLOW CHART 10.2 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 136: Control Mode

    11. CONTROL MODE 11. Control mode 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 137 11. 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 138: Sensor Parameter

    12. SENSOR PARAMETER 12. 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% Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% T [ ℃ ] 908.2603 985.5274 1065.1210...
  • Page 139 12. 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 140 12. 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 141 12. 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 142 12. 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 143 12. 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 144 12. 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 145 12. 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 146 12. 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 147: Troubleshooting

    13. TROUBLESHOOTING 13. Troubleshooting 13.1 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 148 13. 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. There are 3 LED lamps on control board, LED1, LED2 and LED3.
  • Page 149 13. TROUBLESHOOTING Up to 5 IDUs series LED1: Ten’s place LED2: Unit’s place LED3: Drive failure indicator For example, outdoor main control fault 32: For example, outdoor drive fault 32: Up to 3/4/5 IDUs series, fault codes also can be checked by 7 segment display on the maintenance board.

  • Page 150: Fault Codes

    13. TROUBLESHOOTING 13.2 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 151 13. 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 152 13. TROUBLESHOOTING Fault Fault description How to deal with Possible reasons for abnormality 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 153 13. TROUBLESHOOTING Fault Fault description How to deal with Possible reasons for abnormality Remarks code 1. Check to confirm whether The refrigerant of the unit is not there is leakage exist; enough; 2. Add some refrigerant The refrigerant of the unit is not Discharge referring to the installation enough ;...
  • Page 154 13. 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 155 13. TROUBLESHOOTING Table 4 Analysis of the driving board fault Fault Fault description How to deal with Possible reasons for abnormality 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 156 13. 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 157 13. TROUBLESHOOTING Table 5 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 158: Checking Components

    14. CHECKING COMPONENTS 14. Checking components 14.1 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 159: Check Parts Unit

    14. 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 160 14. CHECKING COMPONENTS 2. Compressor Up to 2 IDUs series: 12K/14K model : KSN108D34UFZ 18K model: KTN130D42UFZ Up to 3 IDUs series: DC Inverter Power & 14K/18Kmodel: KTN150D42UFZ Controller 21K model: KTM240D43UMT Up to 4 IDUs series: Compressor 24K/27K model: KTM240D43UMT Up to 5 IDUs series: 30K/36K model: KTM310D85UMT Compressor examine and repair...

  • Page 161: Disassembly Procedure

    15. DISASSEMBLY PROCEDURE 15. Disassembly procedure Outdoor unit Disassembly and assembly for compressor and motor The special tools for compressor & motor disassembly and assembly： Tool Hexagon Screwdriver Hexagon Socket 12K~27K Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free.
  • Page 162 15. DISASSEMBLY PROCEDURE 30K/36K 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 and Valve 1.Remove external casing bonnet； 2.Remove the outer case ； 1.Remove the blade nut and then remove the blade;...
  • Page 164 We reserve the right to change the manual without prior notice.

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