Hisense KFR-72LW Maintenance Manual
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Hisense KFR-72LW Maintenance Manual

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KFR-72LW/88FZBpC
Maintenance manual
Hisense Kelon Air-Conditionning Co.,Ltd

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Summary of Contents for Hisense KFR-72LW

  • Page 1 KFR-72LW/88FZBpC Maintenance manual Hisense Kelon Air-Conditionning Co.,Ltd...

  • Page 2: Table Of Contents

    Table of contents 一、 MODEL AND BRAND------------------------------------------------------------------------------------------2 1.1 Model------------------------------------------------------------------------------------------------------2 1.2 Marketing Trademark----------------------------------------------------------------------------------2 1.3 Short Selling---------------------------------------------------------------------------------------------2 二、 OUTLINES--------------------------------------------------------------------------------------------------------3 三、FEATURES------------------------------------------------------------------------------------------------------4 3.1 Main functions-------------------------------------------------------------------------------------------4 3.2 Technical Features-------------------------------------------------------------------------------------4 四、 SPECIFICATIONS----------------------------------------------------------------------------------------------6 五、 ELECTRIC FUNCTIONS--------------------------------------------------------------------------------------7 5.1 Accessibility statement--------------------------------------------------------------------------------7 5.2 Cooling-run mode-------------------------------------------------------------------------------------19 5.3 Heating-run mode-------------------------------------------------------------------------------------10 5.4 Dehumidifying mode---------------------------------------------------------------------------------11 5.5 Air blowing mode--------------------------------------------------------------------------------------11 5.6 Dual-mode----------------------------------------------------------------------------------------------12 六、...

  • Page 3: 一、 Model And Brand

    一、 MODEL AND BRAND 1.1 Model: KFR-60LW/88FZBpC. 1.2 Marketing Trademark: Hisense Trademarks. 1.3 Short Selling: Frequency And Energy Savin Page 2 of 36...

  • Page 4: 二、 Outlines

    二、 OUTLINES 2.1 INDOOR 2.3 REMOTE 2.2 OUTDOOR Page 3 of 36...

  • Page 5: 三、Features

    三、 FEATURES: 1. DC inverter and Energy-saving environmental protection; 2. Large heating capacity； 3. Auxiliary heating design； 4. Voice function; 5. Ionic air purification technology； 6. Design of the wind on three sides 7. Large-size LED screen, with adjustable brightness feature; 8.
  • Page 6 ④Using 180-degree sine wave drive program, improve the system vibration and noise performance and energy efficiency while broadenning the scope of the system ability. ⑤Using a new generation of higher reliability PFC program, further improve the system reliability, and effectively improve the system’s harmonic performance and energy efficiency at the same time.

  • Page 7: 四、 Specifications

    四、 SPECIFICATIONS Model KFR-60LW/88FZBpC Power Supply Single-phase Climate Type 220V～ / 50Hz Power Phase Voltage Scope three-wire system Waterproof grade IPX4 175V ～ 250V ～ Connection Item Units Data Rated Cooling Capacity (Minimum/Mid/ Max) 6.0 (1.6 / 3.0 / 6.8) Rated Input Power (Minimum/Mid/ Max) 1.85 (0.45 / 0.79 / 2.40) Rated Frequency (Minimum/Mid/ Max)

  • Page 8: 五、 Electric Functions

    五、 ELECTRIC FUNCTIONS 6．1 Accessibility statement 6.1.1 Failure codes self-test: After continuously pressing "efficient" key on the remote four times in 10 seconds, the air-conditioner stars fault self-test. The fault flag should be checked by the display chip. If there is any failure, the fault codes are displayed in the location of the temperature value displayed, which flash 10 seconds or so, and other icons are properly displayed.
  • Page 9 6.1.6 Timer function (24-hour timer) 6.1.6.1 Timer on: When set to start in a time by the remote controller, the air conditioner starts in the timer on condition. When the set time is up, the air conditioner will turn on and operates in the preset conditions after receiving a signal from the remote controller.

  • Page 10: Cooling-Run Mode

    6.1.13 Energy-saving in use After entering the state of energy-saving in use, the current does not exceed X1 A, by adjusting the compressor operating frequency and limiting the maximum current of the compressor. And switch operation can not cancel this function.

  • Page 11: Heating-Run Mode

    to the remote. 6.2.2.2 Top outlet The top throttle is fixed at the maximum position. 6.2.3 Outdoor Fan The speed of outdoor fan is single-speed. The outdoor fan is controlled on an off according to outdoor ambient temperature. 6.2.4 Prevention against condensation and insufficient heat exchange at the low indoor fan speed.

  • Page 12: Dehumidifying Mode

    runs by the setting speed. ℃ After stable operating, if the indoor coil temperature p <32 , the fan speed s gradually reduced. Under any circumstances, if the setting speed is less than the current speed, runs by the setting speed. 6.3.4 Outdoor fan The outdoor fan speeds are divided into three levels which can be changed over according to outdoor ambient temperatures.

  • Page 13: Dual-Mode

    6.6 Dual-mode 6.6.1 Comfort mode is separated cooling comfort mode and heating comfort mode. 6.6.2 Energy saving mode is separated cooling energy saving mode and heating energy saving mode. Page 12 of 36...

  • Page 14: 六、 Electrical Data

    六、 ELECTRICAL DATA 7.1 Electric Wiring Diagrams 7.1.1 Indoor Page 13 of 36...
  • Page 15 7.1.2 Outdoor Page 14 of 36...

  • Page 16: Refrigerant Flow Diagram

    7.2 Refrigerant Flow Diagram 7.3 System pressure diagram Page 15 of 36...
  • Page 17 Page 16 of 36...

  • Page 18: Air-Conditioning Appearance Dimension Drawing

    7.4 Air-conditioning Appearance Dimension Drawing 1. Indoor Page 17 of 36...
  • Page 19 2. Outdoor Page 18 of 36...

  • Page 20: 七、 After Service

    七、 AFTER SERVICE 8.1 Trouble List 8.1.1 When the compressor is in operation, The 3 LED indicator lights on the control panel of the outdoor unit indicates the causes of the restriction on the compressor’s current operating frequency Ο: flashing ×: OFF Symbols for indicator light: ★: ON LED1 LED2 LED3...
  • Page 21 ★ ★ With the drive module communication failure × × Ο DC compressor out of step Ο Ο × DC compressor fails to start Ο Ο DC Fan Trouble Ο ★ Ο Ο ★ Outdoor DC compressor heating state 8.1.3 Indication by the indoor unit (on) Fault code Power Running...

  • Page 22: Parts List

    8.2 Parts List and Details 8.2.1 Outdoor: 8.2.1.1 Parts: Page 21 of 36...
  • Page 23 8.2.1.2 LIST: KFR-50W/88FZBp Parts List Part No. Description Q’ty Notes RZA-0-1321-003-XX-0 FAN GUARD K31470066 FRONT PANEL K38310006 AXIAL FAN K1B310044 FAN MOTOR ASSY K331F0028 FAN SUPPORTER K37330155 CONDENSER ASSY K31220012 SIDE PANEL ASSY RZA-0-5302-003-XX-1 SIDE COVER ASSY K33660017 CLAPBOARD 1318997 MUFFLER 1335437 IMPORT TUBE ASSEMBLY...
  • Page 24 8.2.2 Indoor: 8.2.2.1 Parts: Page 23 of 36...
  • Page 25 8.2.2.2 LIST: Part No. Description Q’ty Notes 8007080 Upper panel 8007081 Upper panel 8007082 Outlet 8007422 Care Net 8005218 Vertical Wind Plate 8007084 Vertical Wind Plate 1205536 Original sleeve RZA-2-1514-065-XX-0 8005279 Short sleeve 1335589 Stepper Motor 1331700 Photoelectric Switch 8007100 Support Parts 1331460 Synchronous motor...
  • Page 26 1335565 Seal plate parts Middle shield+ Sponge 8005554 Electrical lid 1326150 Temperature device Temperature 1318746 Clamp Fixed Temperature Sensor 1341826 Transformers 1201073 TERMINAL PANEL 1202889 Fan Capacitor 1356020 Control Board 1331981 Electric Box Components 8005556 Support Parts Pipe Clamp 8005555 Support Parts Support Box 8006879...

  • Page 27: Appendix: Specifications Of Components

    8.3 Appendix: Specifications of components 1. Outdoor fan (YDK55-6I-8) ① Winding Resistance (20℃) ②Electrical wiring Coil Parameters Permissible range 185Ω ±15% ±15% 200Ω 3uF/450V 2. Indoor fan(YDK50-8-24) ① CoilResistance (20℃) ②Electrical wiring Coil Parameters Permissible range 105Ω ±15% 157Ω ±15% 4uF/450V 3.
  • Page 28 48.488 5.0000 0.9217 0.2393 45.985 4.8110 0.8947 0.2335 43.627 4.6302 0.8686 0.2278 41.403 4.4572 0.8434 0.2224 39.305 4.2916 0.8190 0.2170 37.326 4.1331 0.7954 0.2118 35.458 3.9813 0.7726 0.2068 33.695 3.8359 0.7506 0.2019 32.030 3.6966 0.7292 0.1971 30.458 3.5632 0.7086 0.1924 28.972 3.4532 0.6886...
  • Page 29 6.3315 1.1049 0.2777 ② Thermistor 1201219(RZA-0-5259-090-XX-0(Exhaust) ） Standard Resistance Characteristics R(0)=187.25K Resistor divider: 6.8K T(℃) R(K) U(V) 526.61 0.0635 497.84 0.0684 470.87 0.0732 445.57 0.0732 421.83 0.0781 399.54 0.083 378.61 0.0879 358.96 0.0928 340.48 0.0977 323.11 0.1025 306.77 0.1074 291.4 0.1123 276.92 0.1221...
  • Page 30 88.612 0.3564 85.042 0.3711 81.637 0.3857 78.388 0.4004 75.287 0.415 72.326 0.4297 69.498 0.4443 66.795 0.4639 64.21 0.4785 61.739 0.498 59.373 0.5127 57.11 0.5322 54.942 0.5518 52.866 0.5713 50.876 0.5908 48.939 0.6104 47.14 0.6299 45.386 0.6494 43.703 0.6738 42.087 0.6934 40.536 0.7178 39.047...
  • Page 31 16.754 1.4453 16.15 1.4795 15.568 1.5186 15.005 1.5576 14.463 1.5967 13.939 1.6406 13.433 1.6797 12.946 1.7236 12.475 1.7627 12.02 1.8066 11.581 1.8506 11.158 1.8945 10.749 1.9385 10.354 1.9824 9.9733 2.0264 9.6055 2.0703 9.2505 2.1191 8.9078 2.1631 8.577 2.2119 8.2577 2.2559 7.9495 2.3047 7.652...
  • Page 32 3.0801 3.4424 2.9559 3.4863 2.8363 3.5303 2.7211 3.5693 2.6103 3.6133 2.5036 3.6523 2.4009 3.6963 2.3021 3.7354 2.207 3.7744 2.1155 3.8135 2.0276 3.8525 1.943 3.8867 1.8616 3.9258 1.7834 3.96 1.7082 3.9941 1.6359 4.0283 Page 31 of 37...

  • Page 33: Failure Analysis And Checking Flowcharts

    8.4 Failure Analysis Process: Fault self-test code: 3 Fault self-test code: 4 Evaporator freezing Evaporation overload Evaporation Evaporation evaporator with high- Evaporator freezing? temperature sensor temperature sensor temperature? fault fault Normal protection Normal protection Compressor stop? Compressor stop? action action Turn off the power and open Turn off the power and open air-conditioners after...
  • Page 34 Fault self-test code 5 Display board fault Communication and replace it failure Connect the indoor and Are all the lead wires outdoor unit again Indoor control board Air-conditioner is Indoor control board connected between indoor according to the wiring fault and replace it normal? fault and replace it and outdoor unit?
  • Page 35 Fault self-test code 6 Indoor fan failure Set air-conditioner for Air Blowing mode, and open the air-conditioner Turn off the air- The fan fault and Indoor fan is conditioner, and the fan running? replace it stops? The fan motor socket of Indoor control board indoor control board has fault and replace it...
  • Page 36 Fault self-test code26 Fault self-test code23 Over-current fault Compressor overheating fault After turning off and Normal protection and The running current Normal protection and restarting the air Compressor is very hot? automatically reply exceeded the range of automatically reply over conditioner again, it is over a period of time rated current?
  • Page 37 Fault self-test code30 When cooling outdoor unit overload Is condenser overheating? over a period of time (10 Normal protection minutes) whether to lift? Is the condenser Sensor fault and temperature sensor replace it resistance normal? Outdoor control board fault and replace it Fault self-test code32 IPM Module Fault Is the fault removed after3...

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