Kaisai KOU-12HDN1 Service Manual
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Kaisai KOU-12HDN1 Service Manual

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Service Manual
2010

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Summary of Contents for Kaisai KOU-12HDN1

  • Page 1 Service Manual 2010...
  • Page 3 MLCAC-UTSM-2010-10 Contents Part 1 General Information ....................1 Part 2 Indoor Units ......................7 Part 3 Outdoor Units ......................86 Part 4 Installation ......................124 Part 5 Control........................135 ※The specifications, designs, and information in this book are subject to change without notice for product improvement.

  • Page 5: Table Of Contents

    MLCAC-UTSM-2010-10 General Information Part 1 General Information 1. Model Names of Indoor/Outdoor Units ......2 2. External Appearance ............3 2.1 Indoor Units ................. 3 2.2 Outdoor Units ................4 3. Nomenclature ..............5 4. Features ................6 General Information...

  • Page 6: Model Names Of Indoor/Outdoor Units

    Cooling and heating 1.2 Outdoor Units Model of outdoor unit and corresponding indoor unit Universal Outdoor unit Model Compressor type Compressor Brand Matched indoor units KCA2-12HRDN1-Q KTB-12HWDN1 KOU-12HDN1 Rotary DC Inverter GMCC KUB-12HRDN1 KFA-12HRDN1 KCA2-18HRDN1-Q KTB-18HWDN1 KOUA-18HDN1-C0 Scroll DC Inverter...

  • Page 7: External Appearance

    MLCAC-UTSM-2010-10 External Appearance 2. External Appearance 2.1 Indoor Units Duct Ceiling & Floor Four-way Cassette New Compact Four-way cassette Console General Information...

  • Page 8: Outdoor Units

    External Appearance MLCAC-UTSM-2010-10 2.2 Outdoor Units KOU-12HDN1 KOUA-18HDN1-C0 KOUB-24HDN1 KOU-30HDN1, KOUB-36HDN1-R KOU-36HDN1, KOU-48HDN1, KOUB-48HDN1-R KOUA-60HRDN1, KOUD-60HDN1-R General Information...

  • Page 9: Nomenclature

    MLCAC-UTSM-2010-10 Nomenclature 3. Nomenclature 3.1 Indoor Unit M U B - 18 H R D N1 Refrigerant Type N1 R410A DC Inverter Control Mode R Remote Control Function Code C cooling Only H cooling & Heating Capacity (¡ Á 1 000Btu/h) Product Series A First Time Design B Second Time Design C Third Time Design...

  • Page 10: Features

    Features MLCAC-UTSM-2010-10 4. Features 4.1 Universal outdoor unit design Indoor unit with the same capacity can match with the same outdoor unit. 4.2 High efficiency and energy saving. Thanks to the DC inverter technology and optimized piping system, the EER and COP of whole series can easily reach A-class.
  • Page 11 MLCAC-UTSM-2010-10 Indoor Units Part 2 Indoor Units New Four-way Cassette Type (Compact) ......8 Four-way Cassette Type ............ 18 Duct Type ................35 Ceiling & Floor Type ............53 Console Type ..............72 Indoor Units...
  • Page 12 New Four-way Cassette Type (Compact) MLCAC-UTSM-2010-10 New Four-way Cassette Type (Compact) 1. Features ................9 2. Specifications ..............10 3. Dimensions ..............11 4. Service Space ..............11 5. Wiring Diagrams ............12 6. Air Velocity and Temperature Distributions ....13 7.

  • Page 13: Features

    MLCAC-UTSM-2010-10 Features 1. Features (1) Low operation noise ---Streamline plate ensures quietness ---Creates natural and comfortable environment (2) Efficient cooling ---Equal, fast and wide—range cooling (3) The adoption of the most advanced 3- Dimensional Screw fan ---Reduces the air resistance passing through ---Smoothes the air flow ---Makes air speed distribution to the heat exchange uniform (4) Improvement for easy installation and maintenance...

  • Page 14: Specifications

    Specifications MLCAC-UTSM-2010-10 2. Specifications KCA2-12HRDN1-Q KCA2-18HRDN1-Q Model Code 220042300070 220042400150 Power supply V-ph-Hz 220~240-1-50 220~240-1-50 Capacity Btu/h 13680-12000-4800 19260-18000-6120 Input 1250-980-310 2070-1630-550 Cooling Current 3.26 3.25 Capacity Btu/h 15340-13000-4550 20800-20000-4800 Input 1390-1090-370 2020-1600-560 Heating Current 3.63 3.62 Model YDK15-6P YDK37-4P Indoor fan motor Input 47.1/31.1/26.9...

  • Page 15: Dimensions

    MLCAC-UTSM-2010-10 Dimensions 3. Dimensions 4. Service Space New Four-way Cassette (Compact)

  • Page 16: Wiring Diagrams

    Wiring Diagrams MLCAC-UTSM-2010-10 5. Wiring Diagrams KCA2-12HRDN1-Q KCA2-18HRDN1-Q New Four-way Cassette (Compact)

  • Page 17: Air Velocity And Temperature Distributions

    MLCAC-UTSM-2010-10 Air Velocity and Temperature Distributions 6. Air Velocity and Temperature Distributions Airflow velocity Temperature New Four-way Cassette (Compact)

  • Page 18: Electric Characteristics

    Electric Characteristics MLCAC-UTSM-2010-10 7. Electric Characteristics Power Indoor Units Supply Model Min. Max. KCA2-12HRDN1-Q 220-240V 198V 254V KCA2-18HRDN1-Q 220-240V 198V 254V Remark: MFA: Max. Fuse Amps. (A) 8. Sound Levels FOUR-WAY CASSETTE TYPE 1.0m Microphone Noise level dB(A) Model KCA2-12HRDN1-Q KCA2-18HRDN1-Q New Four-way Cassette (Compact)

  • Page 19: Accessories

    MLCAC-UTSM-2010-10 Accessories 9. Accessories Name Shape Quantity 1. Drain joint (Be provided in outdoor unit.) 2. Remote controller 3. Remote controller holder 4. Mounting screw(ST2.9×10-C-H) 5. Alkaline dry batteries (AM4) 6. Owner's manual 7. Installation manual 10. The Specification of Power New Four-way Cassette (Compact)

  • Page 20: Field Wiring

    Field Wiring MLCAC-UTSM-2010-10 11. Field Wiring -12HRDN1-Q KCA2 KCA2-18HRDN1-Q New Four-way Cassette (Compact)
  • Page 21 MLCAC-UTSM-2010-10 Field Wiring KCA2-12HRDN1-Q KCA2-18HRDN1-Q New Four-way Cassette (Compact)

  • Page 22: Four-Way Cassette Type

    Four-way Cassette Type MLCAC-UTSM-2010-10 Four-way Cassette Type 1. Features ................19 2. Specifications ..............22 3. Dimensions ..............25 4. Service Space ..............26 5. Wiring Diagrams ............27 6. Air Velocity and Temperature Distributions ....28 7. Electric Characteristics ..........29 8.

  • Page 23: Features

    MLCAC-UTSM-2010-10 Features 1. Features (1) Low operation noise —Streamline plate ensures quietness —Creates natural and comfortable environment (2) Efficient cooling——Equal, fast and wide range cooling (3) Excellent performance. The optimal evaporator & sufficient airflow volume guarantees the excellent capacity (4) The adoption of the most advanced 3- Dimensional Screw fan —Reduces the air resistance passing through —Smoothes the air flow —Makes air speed distribution to the heat exchange uniform...
  • Page 24 Features MLCAC-UTSM-2010-10 (8) Different color panels for choose: White、Gray、Blue、Black (9) Swing angle of louver Add one more swing motor, one motor driving two louvers. Controlling the interspace of each part, minimizing the angle loss. The swing angle of the first louver are 40~42 degrees and the second louver are 37~38 degrees. New evaporator and inner configuration designed can acquire high heat-exchanger effect.
  • Page 25 MLCAC-UTSM-2010-10 Features (15) Reserve spaces for air side-outlet, it is available to connect duct pipe hence air supplying from the four sides to nearby small room.. (16) The connecting pipe and drop height is higher. Max. pipe length up to 50m （refer to ①） , and Max. drop height up to 30m（refer to ②）.

  • Page 26: Specifications

    Specifications MLCAC-UTSM-2010-10 2. Specifications KCC-18HRDN1 KCC-24HRDN1 KCC-30HRDN1 Model Indoor Unit 220042400370 220042500500 220042600010 Code V-ph-Hz 220~240-1-50 220~240-1-50 220~240-1-50 Power supply KOUA-18HDN1-C0 KOUB-24HDN1 KOU-30HDN1 Model Outdoor Unit 220075200340 220075301070 220075401041 Code V-ph-Hz 220~240-1-50 220~240-1-50 220~240-1-50 Power supply Capacity Btu/h 19278-17981-5425 26784-23993-5425 35826-29998-8189 Input 1.51-1.47-0.56...
  • Page 27 MLCAC-UTSM-2010-10 Specifications KCC-36HRDN1 KCC-36HRDN1 Model Indoor Unit 220042700390 220042700390 Code V-ph-Hz 220~240-1-50 220~240-1-50 Power supply KOU-36HDN1 KOUB-36HDN1-R Model Outdoor Unit 220075500651 220075500920 Code V-ph-Hz 220~240-1-50 380-415-3-50 Power supply Capacity Btu/h 42309-35826-9895 42309-35826-9895 Input 5.0-3.25-2.3 5.0-3.25-2.3 Cooling current 22.8-14.13-10 7.7-6.0-4.1 3.23 3.23 Capacity Btu/h...
  • Page 28 Specifications MLCAC-UTSM-2010-10 KCC-48HRDN1 KCC-48HRDN1 KCC-60HRDN1 Model Indoor Unit 220042800480 220042800480 220042900010 Code V-ph-Hz 220~240-1-50 220~240-1-50 220~240-1-50 Power supply KOU-48HDN1 KOUB-48HDN1-R KOUD-60HDN1-R Model Outdoor Unit 220075700540 220075700690 220075801220 Code V-ph-Hz 220~240-1-50 380-415-3-50 380-415-3-50 Power supply Capacity Btu/h 51180-48000-11601 51180-48000-11601 56298-53568-14365 Input 5.46-4.36-2.5 5.46-4.36-2.5 6.1-5.2-3.1...

  • Page 29: Dimensions

    MLCAC-UTSM-2010-10 Dimensions 3. Dimensions Unit: mm MODEL(Btu/h) Ф12.7 Ф6.4 18000 >260 Ф15.9 Ф9.5 24000 >260 Ф15.9 Ф9.5 30000 >330 Ф15.9 Ф9.5 36000 >330 Ф15.9 Ф9.5 48000 >330 Ф15.9 Ф9.5 60000 >330 Four-way Cassette Type...

  • Page 30: Service Space

    Service Space MLCAC-UTSM-2010-10 4. Service Space For 18-48k For 60k Four-way Cassette Type...

  • Page 31: Wiring Diagrams

    MLCAC-UTSM-2010-10 Wiring Diagrams 5. Wiring Diagrams KCC-18HRDN1、KCC-24HRDN1 KCC-30HRDN1、KCC-36HRDN1、KCC-48HRDN1、KCC-60HRDN1 Four-way Cassette Type...

  • Page 32: Air Velocity And Temperature Distributions

    Air Velocity and Temperature Distributions MLCAC-UTSM-2010-10 6. Air Velocity and Temperature Distributions Airflow velocity Condenser Evaporator Electronic Condenser temp. sensor expansion valve Evaporator temp. sensor High pressure switch Filter Filter Capillary Room temp. sensor Discharge temp. sensor Oil separator Ambient temp. sensor 4-way valve Filter Oil return...

  • Page 33: Electric Characteristics

    MLCAC-UTSM-2010-10 Electric Characteristics 7. Electric Characteristics Power Indoor Unit Supply Model Voltage KCC-18HRDN1 220-240 KCC-24HRDN1 220-240 KCC-30HRDN1 220-240 KCC-36HRDN1 220-240 KCC-48HRDN1 220-240 KCC-60HRDN1 220-240 KCC-60HRDN1 220-240 Remark: MFA: Max. Fuse Amps. (A) 8. Sound Levels Noise level dB(A) Model KCC-18HRDN1 KCC-24HRDN1 KCC-30HRDN1 KCC-36HRDN1...

  • Page 34: Accessories

    Accessories MLCAC-UTSM-2010-10 9. Accessories Name Shape Quantity INSTALLATION FITTINGS Installation paper board Soundproof / insulation sheath Tubing & Fittings Connecting pipe group Out-let pipe sheath Out-let pipe clasp Drainpipe Fittings Drain joint Seal ring Remote controller & Its Frame Remote controller & Its Remote controller holder Frame Mounting screw(ST2.9×10-C-H)
  • Page 35 MLCAC-UTSM-2010-10 Accessories MCC-60HRDN1 Name Shape Quantity 1. Expansible hook 2. Installation hook Installation Fittings 3. Installation paper board 4. Bolt M6 Tubing ＆ Fittings 5. Soundproof / insulation sheath 6. Out-let pipe 7. Out-let pipe sheath Drainpipe Fittings 8. Out-let pipe clasp 9.

  • Page 36: The Specification Of Power

    The Specification of Power MLCAC-UTSM-2010-10 10. The Specification of Power Four-way Cassette Type...

  • Page 37: Field Wiring

    MLCAC-UTSM-2010-10 Field Wiring 11. Field Wiring Wiring chart Four-way Cassette Type...
  • Page 38 Field Wiring MLCAC-UTSM-2010-10 Four-way Cassette Type...

  • Page 39: Duct Type

    MLCAC-UTSM-2010-10 Duct Type Duct Type 1. Features ................36 2. Specifications ..............37 3. Dimensions ..............40 4. Service Space ..............41 5. Wiring Diagrams ............42 6. Static Pressure ............... 43 7. Electric Characteristics ..........45 8. Sound Levels ..............46 9.

  • Page 40: Features

    Features MLCAC-UTSM-2010-10 1. Features ● New structure design. ● Built-in drainage pump (Optical). ● Two air intake ways: from below or rear (standard). ● Wire controller is standard. ● Three speeds indoor unit. ● Fresh air inlet hole is reserved. Duct Type...

  • Page 41: Specifications

    MLCAC-UTSM-2010-10 Specifications 2. Specifications KTB-12HWDN1 KTB-18HWDN1 KTB-24HWDN1 Model Indoor Unit 220070100130 220070200110 220070300130 Code 220~240-1-50 220~240-1-50 220~240-1-50 Power supply V-ph-Hz KOU-12HDN1 KOUA-18HDN1-C0 KOUB-24HDN1 Model Outdoor 220075100071 220075200340 220075301070 Code Unit 220~240-1-50 220~240-1-50 220~240-1-50 Power supply V-ph-Hz Capacity Btu/h 13102-12000-4777 21700-18000-7233...
  • Page 42 Specifications MLCAC-UTSM-2010-10 KTB-30HWDN1 KTB-36HWDN1 KTB-36HWDN1 Model Indoor Unit 220070400040 220070500750 220070500750 Code 220~240-1-50 220~240-1-50 220~240-1-50 Power supply V-ph-Hz KOU-30HDN1 KOU-36HDN1 KOUB-36HDN1-R Model Outdoor 220075401041 220075500651 220075500920 Code Unit 220~240-1-50 220~240-1-50 380~415-3-50 Power supply V-ph-Hz Capacity Btu/h 36883-30000-12317 42104-36000-14057 42104-36000-14057 Input 3.98-2.79-1.33 4.39-3.25-1.45 4.39-3.25-1.45...
  • Page 43 MLCAC-UTSM-2010-10 Specifications KTB-48HWDN1 KTB-48HWDN1 KTB-60HWDN1 Model Indoor Unit 220070700100 220070700100 220070800170 Code 220~240-1-50 220~240-1-50 220~240-1-50 Power supply V-ph-Hz KOU-48HDN1 KOUB-48HDN1-R KOUA-60HDN1-R Model Outdoor 220075700341 220075700690 220075800161 Code Unit 220~240-1-50 380~415-3-50 380~415-3-50 Power supply V-ph-Hz Capacity Btu/h 51658-48000-17230 51658-48000-17230 57731-54592-19243 Input 5.53-4.35-1.84 5.53-4.35-1.84 6.22-4.99-2.07...

  • Page 44: Dimensions

    Dimensions MLCAC-UTSM-2010-10 3. Dimensions Outline Air outlet o Air return Size of outline dimension mounted Capacity dimension(mm) pening size opening size plug (KBtu) 12/18 30/36 1140 1035 1180 48/60 1200 1094 1240 Duct Type...

  • Page 45: Service Space

    MLCAC-UTSM-2010-10 Service Space 4. Service Space Ensure enough space required for installation and maintenance. All the indoor units reserve the hole to joint the fresh air pipe. The hole size as following: Duct Type...

  • Page 46: Wiring Diagrams

    Wiring Diagrams MLCAC-UTSM-2010-10 5. Wiring Diagrams KTB-12HWDN1 KTB-18HWDN1 KTB1-24HWDN1 KTB-30HWDN1 KTB-36HWDN1 KTB-48HWDN1 KTB-60HWDN1 TO WIRE DISPLAY BOARD 202 07 03903 85 CONTROLLER C ODE T ITLE FAN MOTO R PU MP M OTOR CN1 0 CN 11 WAT ER L EVEL SWI TCH H /P2 HIG H FA N CH /P3...

  • Page 47: Static Pressure

    MLCAC-UTSM-2010-10 Static Pressure 6. Static Pressure KTB-12HWDN1 KTB-18HWDN1 Super high speed High speed Super high speed Mid speed High speed Mid speed Low speed Low speed 200 300 400 500 1000 1100 1200 Air volume(m /h) Air volume(m /h) KTB1-24HWDN1 KTB-30HWDN1 Super high speed High speed...
  • Page 48 Static Pressure MLCAC-UTSM-2010-10 KTB-36HWDN1 KTB-48HWDN1 Super high speed Super high speed High speed High speed Mid speed Mid speed Low speed Low speed 1800 2000 1100 1200 1400 1600 2200 2400 Air volume(m /h) 1000 1300 1600 1900 2200 2500 2800 3100 Air volume(m /h)

  • Page 49: Electric Characteristics

    MLCAC-UTSM-2010-10 Electric Characteristics 7. Electric Characteristics Indoor Unit Power Supply Model Voltage Min. Max. KTB-12HWDN1 220-240 KTB-18HWDN1 220-240 KTB1-24HWDN1 220-240 KTB-30HWDN1 220-240 KTB-36HWDN1 220-240 KTB-48HWDN1 220-240 KTB-60HWDN1 220-240 Remark: MFA: Max. Fuse Amps. (A) Duct Type...

  • Page 50: Sound Levels

    Sound Levels MLCAC-UTSM-2010-10 8. Sound Levels Concealed Duct Type Discharge Suction Duct Duct 1.4m Microphone Noise level dB(A) Model KTB-12HWDN1 KTB-18HWDN1 KTB1-24HWDN1 KTB-30HWDN1 KTB-36HWDN1 KTB-48HWDN1 KTB-60HWDN1 Duct Type...

  • Page 51: Accessories

    MLCAC-UTSM-2010-10 Accessories 9. Accessories Name Shape Quantity Soundproof / insulation sheath Tubing & Fittings Binding tape Seal sponge Drain joint Drainpipe Fittings (for cooling & heating) Seal ring Remote controller Frame Remote controller ＆ Its Frame Mounting screw(ST2.9 10-C-H) Alkaline dry batteries (AM4) Remote controller manual Wired controller &...

  • Page 52: The Specification Of Power

    The Specification of Power MLCAC-UTSM-2010-10 10. The Specification of Power Duct Type...

  • Page 53: Field Wiring

    MLCAC-UTSM-2010-10 Field Wiring 11. Field Wiring Duct Type...
  • Page 54 Field Wiring MLCAC-UTSM-2010-10 Air-conditioner link-circuit. Duct Type...
  • Page 55 MLCAC-UTSM-2010-10 Field Wiring Duct Type...
  • Page 56 Field Wiring MLCAC-UTSM-2010-10 Duct Type...

  • Page 57: Ceiling & Floor Type

    MLCAC-UTSM-2010-10 Ceiling & Floor Type Ceiling & Floor Type 1. Features ................54 2. Specifications ..............55 3. Dimensions ..............58 4. Service Space ..............60 5. Wiring Diagrams ............61 6. Air Velocity and Temperature Distributions ....63 7. Electric Characteristics ..........65 8.

  • Page 58: Features

    Features MLCAC-UTSM-2010-10 1. Features 1.1. New design, more modern and elegant appearance. 1.2. Convenient installation --The ceiling type can be easily installed into a corner of the ceiling even if the ceiling is very narrow --It is especially useful when installation of an air conditioner in the center of the ceiling is impossible due to a structure such as one lighting.

  • Page 59: Specifications

    MLCAC-UTSM-2010-10 Specifications 2. Specifications KUB-12HRDN1 KUB-18HRDN1 KUB-24HRDN1 Model Indoor Unit 220044000060 220044100120 220044200240 Code 220~240-1-50 220~240-1-50 220~240-1-50 Power supply V-ph-Hz KOUB-24HDN1 KOU-12HDN1 KOUA-18HDN1-C0 Model Outdoor 220075100071 220075200340 220075301070 Code Unit 220~240-1-50 220~240-1-50 220~240-1-50 Power supply V-ph-Hz 13648-12000-4777 19278-17981-5561 26955-23993-5561 Capacity...
  • Page 60 Specifications MLCAC-UTSM-2010-10 KUB-30HRDN1 KUB-36HRDN1 KUB-36HRDN1 Model Indoor Unit 220044300000 220044400310 220044400310 Code 220~240-1-50 220~240-1-50 220~240-1-50 Power supply V-ph-Hz KOU-30HDN1 KOU-36HDN1 KOUB-36HDN1-R Model Outdoor 220075401041 220075500651 220075500920 Code Unit 220~240-1-50 220~240-1-50 380-415-3-50 Power supply V-ph-Hz 32414-29998-7506 45038-36000-10236 45038-36000-10236 Capacity Btu/h Input 4.6-2.71-1.1 5.5-3.25-2.3 5.5-3.25-2.3...
  • Page 61 MLCAC-UTSM-2010-10 Specifications KUB-48HRDN1 KUB-48HRDN1 KUB-60HRDN1 Model Indoor Unit 220044600230 220044600230 220044700210 Code 220~240-1-50 220~240-1-50 220~240-1-50 Power supply V-ph-Hz KOU-48HDN1 KOUB-48HDN1-R KOUA-60HRDN1 Model Outdoor 220075700341 220075700690 220075800161 Code Unit 220~240-1-50 380-415-3-50 380-415-3-50 Power supply V-ph-Hz 53227-48000-11601 53227-48000-11601 57322-54592-14501 Capacity Btu/h Input 6.0-4.32-2.5 6.0-4.32-2.5 7.5-4.97-3.0...

  • Page 62: Dimensions

    Dimensions MLCAC-UTSM-2010-10 3. Dimensions a. Wall mounting installation b. Ceiling installation Ceiling & Floor Type...
  • Page 63 MLCAC-UTSM-2010-10 Dimensions Capacity(Btu/h) 12000-24000Btu/h 30000-36000Btu/h 1280 1195 48000-60000Btu/h 1670 1070 1542 Ceiling & Floor Type...

  • Page 64: Service Space

    Service Space MLCAC-UTSM-2010-10 4. Service Space Ceiling & Floor Type...

  • Page 65: Wiring Diagrams

    MLCAC-UTSM-2010-10 Wiring Diagrams 5. Wiring Diagrams KUB-12HRDN1 Ceiling & Floor Type...
  • Page 66 Wiring Diagrams MLCAC-UTSM-2010-10 KUB-18HRDN1、KUB-24HRDN1 KUB-30HRDN1、KUB-36HRDN1、KUB-48HRDN1、KUB-60HRDN1 Ceiling & Floor Type...

  • Page 67: Air Velocity And Temperature Distributions

    MLCAC-UTSM-2010-10 Air Velocity and Temperature Distributions 6. Air Velocity and Temperature Distributions Discharge angle 60° (CEILING) Airflow velocity Condenser Evaporator Electronic Condenser temp. sensor expansion valve Evaporator temp. sensor High pressure switch Filter Filter Capillary Room temp. sensor Discharge temp. sensor Oil separator Ambient temp.
  • Page 68 Air Velocity and Temperature Distributions MLCAC-UTSM-2010-10 Discharge angle 60°(FLOOR) Airflow velocity Temperature Ceiling & Floor Type...

  • Page 69: Electric Characteristics

    MLCAC-UTSM-2010-10 Electric Characteristics 7. Electric Characteristics Indoor Unit Power Supply Model Voltage MUB-12HRDN1 220~240 MUB-18HRDN1 220~240 MUB-24HRDN1 220~240 MUB-30HRDN1 220~240 MUB-36HRDN1 220~240 MUB-48HRDN1 220~240 MUB-60HRDN1 220~240 Remark: MFA: Max. Fuse Amps. (A) Ceiling & Floor Type...

  • Page 70: Sound Levels

    Sound Levels MLCAC-UTSM-2010-10 8. Sound Levels Ceiling Floor Noise level dB(A) Model KUB-12HRDN1 KUB-18HRDN1 KUB-24HRDN1 KUB-30HRDN1 KUB-36HRDN1 KUB-48HRDN1 KUB-60HRDN1 Ceiling & Floor Type...

  • Page 71: Accessories

    MLCAC-UTSM-2010-10 Accessories 9. Accessories Name Shape Quantity 1.Hook Installation fittings 2.Hanging arm 3. Remote controller Remote controller & Its 4. Remote controller holder holder 5. Mounting screw (ST2.9×10-C-H) 6. Alkaline dry batteries (AM4) 7. Owner's manual Others 8. Installation manual 9.

  • Page 72: The Specification Of Power

    The Specification of Power MLCAC-UTSM-2010-10 10. The Specification of Power Ceiling & Floor Type...

  • Page 73: Field Wiring

    MLCAC-UTSM-2010-10 Field Wiring 11. Field Wiring Ceiling & Floor Type...
  • Page 74 Field Wiring MLCAC-UTSM-2010-10 Ceiling & Floor Type...
  • Page 75 MLCAC-UTSM-2010-10 Field Wiring Ceiling & Floor Type...

  • Page 76: Console Type

    Console Type MLCAC-UTSM-2010-10 Console Type 1. Features ................73 2. Specifications ..............74 3. Dimensions ..............75 4. Service Space ..............76 5. Wiring Diagrams ............77 6. Air Velocity and Temperature Distributions ....78 7. Electric Characteristics ..........79 8.

  • Page 77: Features

    MLCAC-UTSM-2010-10 Features 1. Features 1.1. Consumes up to 30% less energy than non-inverter units ——DC inverter compressor ——indoor fan motor adopts DC motor 1.2. Achieves set temperature more quickly ——air supplying from top and bottom or from top only ——air inlet from four directions 1.3.

  • Page 78: Specifications

    Specifications MLCAC-UTSM-2010-10 2. Specifications KFA-12HRDN1 KFA-18HRDN1 Model Indoor Unit 220044000070 220044100190 Code 220~240-1-50 220~240-1-50 Power supply V-ph-Hz KOU-12HDN1 KOUA-18HDN1-C0 Model Outdoor Unit 220075100071 220075200340 Code 220~240-1-50 220~240-1-50 Power supply V-ph-Hz Capacity Btu/h 13989-11942-4777 19448-17981-5800 Input 1.37-1.08-0.34 2.06-1.63-0.52 Cooling current 9.72-7.08-2.26 6.8-4.3-2.0...

  • Page 79: Dimensions

    MLCAC-UTSM-2010-10 Dimensions 3. Dimensions KFA-12HRDN1/ KFA-18HRDN1 Console Type...

  • Page 80: Service Space

    Service Space MLCAC-UTSM-2010-10 4. Service Space Console Type...

  • Page 81: Wiring Diagrams

    MLCAC-UTSM-2010-10 Wiring Diagrams 5. Wiring Diagrams KFA-12HRDN1 KFA-18HRDN1 FUNCTION OF SWITCHES TO WIRE CONTROLLER SWITCH BOARD SWITCH BOARD DIS PLAY BOARD WIRING DIAGRAM INDOOR UNIT CN10 CN1 5 CODE PART NAME TEMP.COMPEN S A TIO N C N1-20 P.C BOARD SOCKETS TEM P.

  • Page 82: Air Velocity And Temperature Distributions

    Air Velocity and Temperature Distributions MLCAC-UTSM-2010-10 6. Air Velocity and Temperature Distributions Discharge angle 60 Airflow velocity Temperature Console Type...

  • Page 83: Electric Characteristics

    MLCAC-UTSM-2010-10 Electric Characteristics 7. Electric Characteristics Indoor Unit Power Supply Model Voltage KFA-12HRDN1 220~240V 198V 254V KFA-18HRDN1 220~240V 198V 254V Remark: MFA: Max. Fuse Amps. (A) Console Type...

  • Page 84: Sound Levels

    Sound Levels MLCAC-UTSM-2010-10 8. Sound Levels Noise level dB(A) Model Highest Higher KFA-12HRDN1 KFA-18HRDN1 Console Type...

  • Page 85: Accessories

    MLCAC-UTSM-2010-10 Accessories 9. Accessories KFA-12HRDN1/ KFA-18HRDN1 Name Shape Quantity Installation fittings Hook Remote controller Frame Remote controller & Its Frame Mounting screw(ST2.9×10-C-H) Alkaline dry batteries (AM4) Installation manual Others Owner's manual Console Type...

  • Page 86: The Specification Of Power

    The Specification of Power MLCAC-UTSM-2010-10 10. The Specification of Power Console Type...

  • Page 87: Field Wiring

    MLCAC-UTSM-2010-10 Field Wiring 11. Field Wiring Console Type...
  • Page 88 Field Wiring MLCAC-UTSM-2010-10 Console Type...

  • Page 90: Part 3 Outdoor Units

    Outdoor Units MLCAC-UTSM-2010-10 Part 3 Outdoor Units 1. Specification ..............87 2. Dimensions ..............92 3. Service Space ..............93 4. Piping Diagrams ............94 5. Wiring Diagrams ............95 6. Electric Characteristics ..........100 7. Operation Limits ............101 8.

  • Page 91: Specification

    MLCAC-UTSM-2010-10 Specification 1. Specification Model KOU-12HDN1 KOUA-18HDN1-C0 name Outdoor Code 220075100071 220075200340 Power 220~240V-1 Ph-50Hz 220~240V-1 Ph-50Hz supply Max. input consumption 1500 2400 Max. current 13.1 Model C-6RVN93H0V DA108X1C-20FZ3 Type Rotary DC Inverter Scroll DC Inverter Brand Shenyang SANYO GMCC...
  • Page 92 Specification MLCAC-UTSM-2010-10 Model KOUB-24HDN1 KOU-30HDN1 name Outdoor Code 220075301070 220075401041 Power 220~240V-1 Ph-50Hz 220~240V-1 Ph-50Hz supply Max. input consumption 3250 4600 Max. current 15.48 Model ATL165SD-C9AU TNB220FLBM1 Type Rotary DC Inverter Rotary DC Inverter Brand HITACHI MITSUBISHI ELECTRIC Compressor Capacity Btu/h 15525 24328...
  • Page 93 MLCAC-UTSM-2010-10 Specification Model KOU-36HDN1 KOUB-36HDN1-R name Outdoor Code 220075500651 220075500920 Power 220~240V-1 Ph-50Hz 380V~3 Ph-50Hz supply Max. input consumption 5500 5500 Max. current Model TNB306FPGM TNB306FPNM Type Rotary DC Inverter Rotary DC Inverter Brand MITSUBISHI ELECTRIC MITSUBISHI ELECTRIC Compressor Capacity Btu/h 33642 33710...
  • Page 94 Specification MLCAC-UTSM-2010-10 Model KOU-48HDN1 KOUB-48HDN1-R name Outdoor Code 220075700341 220075700690 Power 220~240V-1 Ph-50Hz 380V~3 Ph-50Hz supply Max. input consumption 6000 6000 Max. current Model TNB306FPGM TNB306FPNM Type Rotary DC Inverter Rotary DC Inverter Brand MITSUBISHI ELECTRIC MITSUBISHI ELECTRIC Compressor Capacity Btu/h 33642 33710...
  • Page 95 MLCAC-UTSM-2010-10 Specification Model KOUA-60HRDN1 KOUD-60HDN1-R name Outdoor Code 220075800161 220075801220 Power 380V~-3 Ph-50Hz 380~415V-3 Ph-50Hz supply Max. input consumption 7500 7200 Max. current Model ANB42FBEMT ANB42FBEMT Type Scroll DC Inverter Scroll DC Inverter Brand MITSUBISHI MITSUBISHI Compressor Capacity Btu/h 47440 47440 Input 4160...

  • Page 96: Dimensions

    Dimensions MLCAC-UTSM-2010-10 2. Dimensions Unit: mm MODEL KOU-12HDN1 KOUA-18HDN1-C0 KOUB-24HDN1 KOU-30HDN1 KOU-36HDN1 1245 KOUB-36HDN1-R KOU-48HDN1 1245 KOUB-48HDN1-R 1245 KOUA-60HRDN1 1245 KOUD-60HDN1-R 1245 Outdoor Units...

  • Page 97: Service Space

    MLCAC-UTSM-2010-10 Service Space 3. Service Space Outdoor Units...

  • Page 98: Piping Diagrams

    Piping Diagrams MLCAC-UTSM-2010-10 4. Piping Diagrams KOU-12HDN1 Capillary ass'y Condenser Evaporator 4-way valve Compressor Indoor unit Outdoor unit KOUA-18HDN1-C0、KOUB-24HDN1 Condenser Electronic expansion valve Condenser temp. sensor Filter Filter Capillary Evaporator Ambient temp. sensor High pressure switch 4-way valve Discharge temp. sensor...

  • Page 99: Wiring Diagrams

    MLCAC-UTSM-2010-10 Wiring Diagrams 5. Wiring Diagrams KOU-12HDN1 Outdoor Units...
  • Page 100 Wiring Diagrams MLCAC-UTSM-2010-10 KOUA-18HDN1-C0 KOUB-24HDN1 Outdoor Units...
  • Page 101 MLCAC-UTSM-2010-10 Wiring Diagrams KOU-30HDN1 KOU-36HDN1、KOU-48HDN1 Outdoor Units...
  • Page 102 Wiring Diagrams MLCAC-UTSM-2010-10 KOUB-36HDN1-R KOUB-48HDN1-R、KOUA-60HRDN1 Outdoor Units...
  • Page 103 MLCAC-UTSM-2010-10 Wiring Diagrams KOUD-60HDN1-R Outdoor Units...

  • Page 104: Electric Characteristics

    Electric Characteristics MLCAC-UTSM-2010-10 6. Electric Characteristics Outdoor Unit Power Supply Model Voltage Min. Max. KOU-12HDN1 220-240 KOUA-18HDN1-C0 220-240 KOUB-24HDN1 220-240 KOU-30HDN1 220-240 KOU-36HDN1 220-240 KOU-48HDN1 220-240 KOUB-36HDN1-R 380-415 KOUB-48HDN1-R 380-415 KOUA-60HRDN1 380-415 KOUD-60HDN1-R 380-415 Remark: MFA: Max. Fuse Amps. (A)

  • Page 105: Operation Limits

    MLCAC-UTSM-2010-10 Operation Limits 7. Operation Limits Heating Cooling Indoor temperature( ℃ WB) Indoor temperature( ℃ DB) 18-60k Heating Indoor temperature( ℃ DB) Outdoor Units...

  • Page 106: Sound Levels

    Sound Levels MLCAC-UTSM-2010-10 8. Sound Levels Noise level dB(A) Model KOU-12HDN1 48/44 KOUA-18HDN1-C0 51/46 KOUB-24HDN1 53/48 KOU-30HDN1 57/50 KOU-36HDN1 57/52 KOUB-36HDN1-R 55/50 KOU-48HDN1 59/54 KOUB-48HDN1-R 59/54 KOUA-60HRDN1 59/54 KOUD-60HDN1-R 59/54 Outdoor Units...

  • Page 107: Troubleshooting

    MLCAC-UTSM-2010-10 Troubleshooting 9. Troubleshooting 9.1 Indoor unit malfunction 9.1.1 Display board Compact 4-way cassette Ceiling & Floor Normal 4-way cassette Duct Outdoor Units...
  • Page 108 Troubleshooting MLCAC-UTSM-2010-10 9.1.2 Troubleshooting For Normal 4-way cassette For compact 4-way cassette(12K) Outdoor Units...
  • Page 109 MLCAC-UTSM-2010-10 Troubleshooting High static duct unit For compact 4-way cassette(18K)&ceiling & floor & For Duct type Outdoor Units...
  • Page 110 Troubleshooting MLCAC-UTSM-2010-10 Outdoor Units...
  • Page 111 MLCAC-UTSM-2010-10 Troubleshooting 1. Operation lamp flashes Operation lamp flashes at 5Hz Judge 1: Indoor temp. sensor is abnormal Check whether the resistance of the evaporator temp. sensor is Replace evaporator temp. sensor correct according to Annex 1 Judge 2: Room temp. sensor is abnormal Check whether the resistance of the room temp.
  • Page 112 Troubleshooting MLCAC-UTSM-2010-10 2. Timer lamp flashes Timer lamp flashes at 5Hz Judge: Indoor/outdoor unit communication is abnormal Refer to the outdoor unit LED display E2 malfunction in the following part 3. Alarm lamp slow-flash Indoor alarm lamps flash at 1Hz Condenser temp.
  • Page 113 MLCAC-UTSM-2010-10 Troubleshooting 4. Alarm lamp quick-flash Alarm lamp flashes at 5Hz Judge: Water level switch is abnormal. Replace water pump Check whether the water pump can work normally Select the cooling mode to make water pump work for a few minutes, then check Trouble is solved whether the system can run normally Solve to make the water can flow...
  • Page 114 Troubleshooting MLCAC-UTSM-2010-10 9.2 Outdoor unit malfunction Display Malfunction or Protection EEPROM malfunction Communication malfunction between indoor IC and outdoor IC Communication malfunction in outdoor IC and DSP Malfunction of outdoor temperature sensor Voltage protection of compressor PFC module protection (Only for 30K, 36K & 48K with 1 phase) Top temperature protection of compressor High pressure protection Low pressure protection...
  • Page 115 MLCAC-UTSM-2010-10 Troubleshooting 2. E2 malfunction E2 display Communication malfunction between indoor IC and outdoor IC Judge 1: Check whether the indoor unit power is on Turn on the indoor unit power Judge 2: Check whether the signal wiring is shield cable or whether Adopt the shield cable/ let shield cable earthed the shield cable is earthed Judge 3: Check whether the signal wiring between the indoor and...
  • Page 116 Troubleshooting MLCAC-UTSM-2010-10 3. E3 malfunction (For 18K & 24K & 30K) E3 display Communication malfunction in outdoor IC and DSP Check whether the indicator lights LED1 on the main board is flashing Replace the outdoor main board Insert the connecting wiring well over Check whether the connecting wiring between the IPM module and the CN4 again on the main board is broken off...
  • Page 117 MLCAC-UTSM-2010-10 Troubleshooting 4. E3 malfunction (For 36K & 48K & 60K) E3 display Communication malfunction in outdoor IC and DSP Check whether the indicator lights LED1 or LED2 on the main control board are flashing Replace PCB Install the IC-U3 chip of the PCB over again, check whether the system Trouble is solved can run normally Check whether the output of the transformer to CN4 socket is well...
  • Page 118 Troubleshooting MLCAC-UTSM-2010-10 5. E4 malfunction E4 display Judge 1: Outdoor condenser temp. sensor (T3) is malfunction Connect the wiring well Check whether the wiring of the condenser temp. sensor is broken off Check whether the resistance of condenser temp. sensor is wrong refer to the Annex 1 Replace condenser temp.
  • Page 119 MLCAC-UTSM-2010-10 Troubleshooting 6. E5 malfunction E5 display Voltage protection of compressor Check the voltage of outdoor unit power supply, whether the voltage Check the power supply between L(1) and N is about 172-265V Replace the power board, then check whether the system can run normally Trouble is solved Replace outdoor main board 7.
  • Page 120 Troubleshooting MLCAC-UTSM-2010-10 8. P1 malfunction P1 display High pressure protection Judge 1: Whether the wiring between the high pressure switch and main Connect it well control board is connected well or correctly Judge 2: Whether the high pressure switch is broken Method: Short connect the high pressure switch socket, check Replace high pressure switch whether the system can run normally...
  • Page 121 MLCAC-UTSM-2010-10 Troubleshooting 9. P2 malfunction P2 display Low pressure protection Judge 1: The wiring between the low pressure switch and main control board is connected well or correctly Connect it well Judge 2: Whether the low pressure switch is broken Method: Short connect the low pressure switch socket, check Replace low pressure switch whether the system can run normally...
  • Page 122 Troubleshooting MLCAC-UTSM-2010-10 10. P3 malfunction P3 display Current protection of compressor Judge 1: Check whether the input current of the power supply wire is more than 20A (For 36K & 48K with 1 phase, it is 30A) Check whether the refrigerant system is ok Judge 2: Check whether the outdoor ambient temperature is too high Stop the unit Make the outdoor unit ventilate well...
  • Page 123 MLCAC-UTSM-2010-10 Troubleshooting 11. P4 malfunction When compressor discharge temperature is higher than 115°C, the unit will stop, and unit runs again when compressor discharge temperature is lower than 90°C. P4 display Discharge temperature protection of compressor Check whether the compressor discharge temp. is more than 115°C ? Check whether the wiring connection is right between compressor discharge temp.
  • Page 124 Troubleshooting MLCAC-UTSM-2010-10 12. P5 malfunction When condenser high temp. is more than 65°C, the unit will stop, and unit runs again when outdoor pipe temp. less than 52°C. P5 display High temperature protection of condenser Check whether the condenser temperature is more than 65°C Check whether the resistance of condenser temp.
  • Page 125 MLCAC-UTSM-2010-10 Troubleshooting 13. P6 malfunction (For single phase units) P6 display Module protection Check whether the voltage range of P-N on IPM module is normal? DC277-356V for Regulate it to correct, 18K/24K/30KBtu/h; DC277-410V for then check whether the 36K/48KBtu/h Check whether the input power supply system can work is correct? 220-240V, 1N, 50Hz normally?
  • Page 126 Troubleshooting MLCAC-UTSM-2010-10 14. P6 malfunction (For three phases units) P6 display Module protection Regulate it to correct, then check whether the Check whether the voltage range of P-N on Check whether the input power supply system can work IPM module is normal? DC 350-650V is correct? 380-415V, 3N, 50Hz normally? Check whether the connecting line...
  • Page 127 MLCAC-UTSM-2010-10 Troubleshooting Appendix Indoor Temp. and Pipe Temp. Sensor Resistance Value Table (℃--K) ℃ ℃ ℃ ℃ K Ohm K Ohm K Ohm K Ohm 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148 101.517 11.5000 2.19073 0.59386 96.3423 10.9731 2.11241 0.57683 89.5865 10.4736...

  • Page 128: Part 4 Installation

    Installation MLCAC-UTSM-2010-10 Part 4 Installation 1.Precaution on Installation ..........125 2.Vacuum Dry and Leakage Checking ....... 126 3.Additional Refrigerant Charge ......... 128 4.Water Drainage ............... 129 5.Insulation Work ............... 132 6.Wiring ................133 7.Test Operation ..............134 Installation...

  • Page 129: Precaution On Installation

    MLCAC-UTSM-2010-10 Precaution on Installation 1. Precaution on Installation 1). Measure the necessary length of the connecting pipe, and make it by the following way. Connect the indoor unit at first, then the outdoor unit. Bend the tubing in proper way. Do not harm them. Specially Notice the pipe length/height/dimension of each capacity.

  • Page 130: Vacuum Dry And Leakage Checking

    Vacuum Dry and Leakage Checking MLCAC-UTSM-2010-10 2. Vacuum Dry and Leakage Checking Vacuum Dry: use vacuum pump to change the moisture (liquid) into steam (gas) in the pipe and discharge it out of the pipe to make the ℃. Use vacu pipe dry.
  • Page 131 MLCAC-UTSM-2010-10 Vacuum Dry and Leakage Checking ② . Special vacuum dry procedure  This vacuum dry method is used in the following conditions:  There’s moisture when flushing the refrigerant pipe.  Rainwater may enter into the pipe.  Vacuum dry for the first time ······ 2h pumping ③.

  • Page 132: Additional Refrigerant Charge

    Additional Refrigerant Charge MLCAC-UTSM-2010-10 3. Additional Refrigerant Charge Caution Refrigerant cannot be charged until field wiring has been completed. b) Refrigerant may only be charged after performing the leak test and the vacuum pumping. When charging a system, care shall be taken that its maximum permissible charge is never exceeded, in view of the danger of liquid hammer.

  • Page 133: Water Drainage

    MLCAC-UTSM-2010-10 Water Drainage 4. Water Drainage 4.1 Gradient and Supporting 1). Keep the drainpipe sloping downwards at a gradient of at least 1/50. Keep the drainpipe as short as possible and eliminate the air bubble. 2). The horizontal drainpipe should be short. When the pipe is too long, a prop stand must be installed to keep the gradient of 1/50 and prevent bending.

  • Page 134: Drainage Test

    Water Drainage MLCAC-UTSM-2010-10 For Four-way cassette 4.4 Convergent drainage 1). The number of indoor units should be as small as possible to prevent the traverse main pipe overlong. 2). Indoor unit with drain pump and indoor unit without drain pump should be in different drainage system. 3).
  • Page 135 MLCAC-UTSM-2010-10 Water Drainage ③ Stop the air condi t ioner running, turn off the power, and put back the cover.  Stop the air conditioner. After 3 minutes, check if it has abnormity. If the collocation of drainpipes is illogical, the water will flow back overfull, which will cause the alarm lamp flashes, even overflow from the water receipt plate.

  • Page 136: Insulation Work

    Insulation Work MLCAC-UTSM-2010-10 5. Insulation Work 5.1 Insulation material and thickness 1). Insulation material ℃ in the high Insulation material should adopt the material which is able to endure the pipe’s temperature: no less than 70 -pressure side, no ℃ in the low less than 120 -pressure side(For the cooling type machine, no requirements at the low-pressure side.) ℃)

  • Page 137: Wiring

    MLCAC-UTSM-2010-10 Insulation Work For construction convenience, before laying pipes, use insulation material to insulate the pipes to be deal with, at the same time, at two ends of the pipe, remain some length not to be insulated, in order to be welded and check the leakage after laying the pipes. 3).

  • Page 138: Test Operation

    Test Operation MLCAC-UTSM-2010-10 7. Test Operation (1) The test operation must be carried out after the entire installation has been completed. (2) Please confirm the following points before the test operation.  The indoor unit and outdoor unit are installed properly. ...

  • Page 139: Part 5 Control

    MLCAC-UTSM-2010-10 Control Part 5 Control 1. Wireless Remote Controller ........... 136 Control...

  • Page 140: Wireless Remote Controller

    Wireless Remote Controller MLCAC-UTSM-2010-10 1. Wireless Remote Controller 1.1 R11-HG/E Mode select button I/O Button Push the button to start Each time you push button, a mode is operation, push the selected in a sequence button again to stop that goes from AUTO, operation.
  • Page 141 MLCAC-UTSM-2010-10 Wireless Remote Controller 1.2 R05/BGE The R05/BGE wireless remote controller is for Four-way cassette type and the Ceiling& floor type. Mo de s etting Fan s peed se tti n g Adj us t Ad jus t MOD E S P EED Ai r dire ct i on setting ON/OFF...
  • Page 142 Wireless Remote Controller MLCAC-UTSM-2010-10 Buttons and functions 1. MODE: Once pressing, running mode will be selected in the following sequence: AUTO COOL HEAT FAN NOTE: No heating mode for cool only type unit. 2. FAN SPEED: Fan speed will be selected in following sequence once pressing this button: AUTO LOW HIGH : Decrease the set temp.
  • Page 143 MLCAC-UTSM-2010-10 Wireless Remote Controller 1.3 R51/CE The R51/CE wireless remote controller is only for MCA1-18CR. Remote Controller Specifications Model R51/CE Rated Voltage 3.0V Lowest Voltage of CPU Emitting Signal 2.0V Reaching Distance 8m (when using 3.0 voltage, it can get 11m) -5 ℃...
  • Page 144 Wireless Remote Controller MLCAC-UTSM-2010-10 10. FAN SPEED Button: This button is used for setting fan speed in the sequence that goes from AUTO, LOW, MED to HIGH, and then back to Auto. 11. TEMP UP Button: Push this button to increase the indoor temperature setting or to adjust the timer in a counter-clockwise direction.

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