Shinco KFR-25GWZ/BM Service Manual

Shinco KFR-25GWZ/BM Service Manual

Inverter split system air conditioner
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Shinco Service Manual
SERVICE MANUAL
Inverter Split system Air Conditioner
R410A
Model:
KFR-25GWZ/BM
KFR-35GWZ/BM
KFR-50GWZ/BM
KFR-70GWZ/BM
- 1 -

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Summary of Contents for Shinco KFR-25GWZ/BM

  • Page 1 Shinco Service Manual SERVICE MANUAL Inverter Split system Air Conditioner R410A Model: KFR-25GWZ/BM KFR-35GWZ/BM KFR-50GWZ/BM KFR-70GWZ/BM - 1 -...
  • Page 2: Table Of Contents

    Shinco Service Manual Table of contents Part I 1. Introductions of Part Names and Functions 2. Outline Dimension of Indoor and Outdoor Units 3. Specification 4. Wiring Diagram 5. Refrigeration System Diagram 6. Refrigeration Piping Length and Height Difference Table Additional Refrigerant Charge Table 7.
  • Page 3: Introductions Of Part Names And Functions

    Shinco Service Manual Part I 1. Introductions of Part Names and Functions 1.1 Remote controller - 3 -...
  • Page 4 Shinco Service Manual 1.2 Indoor panel 1.3 Outdoor panel - 4 -...
  • Page 5: Outline Dimension Of Indoor And Outdoor Units

    Shinco Service Manual 2. Outline Dimension of Indoor and Outdoor Units 2.1. Outdoor unit SIZE mm MODEL KFR-25GWZ/BM KFR-35GWZ/BM KFR-50GWZ/BM 339.5 372 KFR-70GWZ/BM - 5 -...
  • Page 6 Shinco Service Manual 2.2 Indoor unit Unit:mm KFR-25GWZ/BM KFR-35GWZ/BM - 6 -...
  • Page 7 Shinco Service Manual KFR-50GWZ/BM - 7 -...
  • Page 8 Shinco Service Manual KFR-70GWZ/BM - 8 -...
  • Page 9: Specification

    Shinco Service Manual SIZE mm MODEL KFR-25GWZ/BM KFR-35GWZ/BM KFR-50GWZ/BM 1013 KFR-70GWZ/BM 1138 1055 3. Specification Product type KFR-25GWZ/BM KFR-35GWZ/BM KFR-50GWZ/BM KFR-70GWZ/BM Product Number Indoor bem25117610/G33 bem35117610/G33 bem50117603/G36 bem70117603/G37 Outdoor bem25127610/W6 bem35127610/W6 bem50127603/W18 bem70127603/W13 Ductless mini split AC Ductless mini split AC...
  • Page 10: Wiring Diagram

    Shinco Service Manual 4. Wiring Diagram 4.1 Indoor unit Wiring diagram KFR-25GWZ/BM KFR-35GWZ/BM - 10 -...
  • Page 11 Shinco Service Manual KFR-50GWZ/BM KFR-70GWZ/BM - 11 -...
  • Page 12 Shinco Service Manual 4.2 Outdoor unit Wiring diagram KFR-25GWZ/BM KFR-35GWZ/BM - 12 -...
  • Page 13 Shinco Service Manual KFR-50GWZ/BM KFR-70GWZ/BM - 13 -...
  • Page 14 Shinco Service Manual 5. Refrigerant system diagram - 14 -...
  • Page 15: Additional Refrigerant Charge Table

    Shinco Service Manual 6. Max. refrigerant piping length and max. height difference 6.1 Piping length and height difference MODEL REFRIGERANT PIPING:M PIPING SIZE O.D:mm Max. length Max. Height Liquid difference KFR-25GWZ/BM 9.52 6.35 KFR-35GWZ/BM 12.7 6.35 KFR-50GWZ/BM KFR-70GWZ/BM 9.52 12.88 6.2 Additional refrigerant Charge (R410A:g)
  • Page 16: Sensor Resistance Table

    Shinco Service Manual 7. Sensor Resistance Table 7.1 KFR-25GWZ/BM、KFR-35GWZ/BM Sensor Resistance Table 7.1.1 indoor air sensor、indoor pipe sensor、outdoor air sensor、outdoor pipe sensor R-T datasheet 10K±0.5% ;3976K±0.5%,B(25/85)=3976K±0.5% R-T datasheet Temp.(℃) R(KΩ) Temp.(℃) R(KΩ) Temp.(℃) R(KΩ) Temp.(℃) R(KΩ) 180.719 26.832 5.764 1.627 169.891...
  • Page 17 Shinco Service Manual 7.1.2 outdoor discharge pipe R(0)=187.25K±6.3% ;B(0/100)=3979K±1% R-T datasheet ΔR(min) ΔR(max) Temp.(℃) R(min) (KΩ) R(cent) (KΩ) R(max) (KΩ) 488.35 526.61 565.60 -7.3% 7.4% 461.94 497.84 534.41 -7.2% 7.3% 437.15 470.87 505.17 -7.2% 7.3% 413.89 445.57 477.76 -7.1% 7.2% 392.05...
  • Page 18 Shinco Service Manual 47.054 50.876 54.791 -7.5% 7.7% 45.273 48.939 52.757 -7.5% 7.8% 43.565 47.140 50.806 -7.6% 7.8% 41.928 45.386 48.934 -7.6% 7.8% 40.358 43.703 47.137 -7.7% 7.9% 38.852 42.087 45.412 -7.7% 7.9% 37.408 40.536 43.755 -7.7% 7.9% 36.018 39.047 42.163...
  • Page 19 Shinco Service Manual 6.4273 7.0878 7.7850 -9.3% 9.8% 6.1825 6.8204 7.4942 -9.4% 9.9% 5.9462 6.5623 7.2135 -9.4% 9.9% 5.7184 6.3133 6.9424 -9.4% 10.0% 5.4987 6.0731 6.6808 -9.5% 10.0% 5.2867 5.8413 6.4284 -9.5% 10.1% 5.0827 5.6177 6.1847 -9.5% 10.1% 4.8853 5.4018 5.9495...
  • Page 20 Shinco Service Manual 23.11 24.59 26.15 -6.0% 6.3% 21.94 23.33 24.78 -5.9% 6.2% 20.84 22.13 23.48 -5.8% 6.1% 19.79 21.00 22.26 -5.7% 6.0% 18.81 19.94 21.11 -5.6% 5.9% 17.88 18.93 20.03 -5.5% 5.8% 17.00 17.98 19.00 -5.5% 5.7% 16.17 17.09 18.04...
  • Page 21 Shinco Service Manual 2.077 2.178 2.280 -4.6% 4.7% 1.996 2.094 2.194 -4.7% 4.8% 1.918 2.014 2.112 -4.7% 4.9% 1.843 1.937 2.033 -4.8% 5.0% 1.772 1.863 1.958 -4.9% 5.1% 1.704 1.793 1.885 -5.0% 5.1% 1.639 1.726 1.816 -5.0% 5.2% 1.577 1.662 1.749...
  • Page 22 Shinco Service Manual 0.3253 0.3536 0.3840 -8.0% 8.6% 0.3156 0.3433 0.3730 -8.1% 8.7% 0.3063 0.3333 0.3624 -8.1% 8.7% 0.2973 0.3237 0.3522 -8.2% 8.8% 0.2886 0.3144 0.3423 -8.2% 8.9% 0.2802 0.3055 0.3327 -8.3% 8.9% 0.2721 0.2968 0.3235 -8.3% 9.0% 0.2643 0.2885 0.3146...
  • Page 23 Shinco Service Manual 0.0822 0.0918 0.1025 -10.5% 11.6% 0.0805 0.0899 0.1003 -10.5% 11.6% 0.0787 0.0880 0.0983 -10.5% 11.7% 0.0771 0.0862 0.0963 -10.6% 11.7% 0.0755 0.0844 0.0943 -10.6% 11.8% 0.0739 0.0827 0.0924 -10.6% 11.8% 0.0724 0.0810 0.0906 -10.7% 11.9% 0.0709 0.0794 0.0888...
  • Page 24 Shinco Service Manual 71.119 76.120 81.343 -6.6% 6.9% 67.899 72.772 77.870 -6.7% 7.0% 64.840 69.587 74.562 -6.8% 7.1% 61.935 66.558 71.412 -6.9% 7.3% 59.175 63.676 68.411 -7.1% 7.4% 56.551 60.934 65.550 -7.2% 7.6% 54.057 58.323 62.824 -7.3% 7.7% 51.685 55.836 60.225...
  • Page 25 Shinco Service Manual 8.1928 9.3386 10.628 -12.3% 13.8% 7.9040 9.0189 10.275 -12.4% 13.9% 7.6266 8.7114 9.9346 -12.5% 14.0% 7.3600 8.4156 9.6072 -12.5% 14.2% 7.1038 8.1310 9.2920 -12.6% 14.3% 6.8575 7.8572 8.9883 -12.7% 14.4% 6.6208 7.5938 8.6958 -12.8% 14.5% 6.3932 7.3401 8.4139...
  • Page 26 Shinco Service Manual 106.800 113.500 120.500 -5.90% 6.17% 101.000 107.200 113.700 -5.78% 6.06% 95.600 101.300 107.400 -5.63% 6.02% 90.430 95.760 101.400 -5.57% 5.89% 85.610 90.550 95.740 -5.46% 5.73% 81.070 85.660 90.470 -5.36% 5.62% 76.800 81.060 85.510 -5.26% 5.49% 72.780 76.730 80.860...
  • Page 27 Shinco Service Manual 7.9920 8.253 8.519 -3.16% 3.22% 7.667 7.924 8.186 -3.24% 3.31% 7.357 7.609 7.867 -3.31% 3.39% 7.061 7.309 7.563 -3.39% 3.48% 6.778 7.023 7.273 -3.49% 3.56% 6.509 6.749 6.995 -3.56% 3.64% 6.252 6.487 6.729 -3.62% 3.73% 6.006 6.238 6.475...
  • Page 28 Shinco Service Manual 1.1980 1.2840 1.3760 -6.70% 7.17% 1.1620 1.2460 1.3360 -6.74% 7.22% 1.1270 1.2090 1.2970 -6.78% 7.28% 1.0930 1.1740 1.2600 -6.90% 7.33% 1.0600 1.1390 1.2240 -6.94% 7.46% 1.0290 1.1060 1.1890 -6.96% 7.50% 0.9985 1.0740 1.1550 -7.03% 7.54% 0.9691 1.0430 1.1220...
  • Page 29 Shinco Service Manual 0.2838 0.3129 0.3448 -9.30% 10.19% 0.2767 0.3052 0.3365 -9.34% 10.26% 7.2.4 outdoor discharge pipe R(0)=187.25K±6.3% ;B(0/100)=3979K±1% R-T datasheet ΔR(min) ΔR(max) Temp.(℃) R(min) (KΩ) R(cent) (KΩ) R(max) (KΩ) 488.35 526.61 565.60 -7.3% 7.4% 461.94 497.84 534.41 -7.2% 7.3% 437.15...
  • Page 30 Shinco Service Manual 52.880 57.110 61.433 -7.4% 7.6% 50.853 54.942 59.124 -7.4% 7.6% 48.913 52.866 56.911 -7.5% 7.7% 47.054 50.876 54.791 -7.5% 7.7% 45.273 48.939 52.757 -7.5% 7.8% 43.565 47.140 50.806 -7.6% 7.8% 41.928 45.386 48.934 -7.6% 7.8% 40.358 43.703 47.137...
  • Page 31 Shinco Service Manual 7.2170 7.9495 8.7215 -9.2% 9.7% 6.9443 7.6520 8.3983 -9.2% 9.8% 6.6812 7.3649 8.0883 -9.3% 9.8% 6.4273 7.0878 7.7850 -9.3% 9.8% 6.1825 6.8204 7.4942 -9.4% 9.9% 5.9462 6.5623 7.2135 -9.4% 9.9% 5.7184 6.3133 6.9424 -9.4% 10.0% 5.4987 6.0731 6.6808...
  • Page 32: Parts List And Exploding View

    Shinco Service Manual 8. Parts List and exploding view Exploding view and part list of KFR-25GWZ/BM Indoor unit Part Name Quantity BOM code Wall Mounted Board e18503 Chassis Assembly e535123 Cross Fan e19294 Left Axial Cover e19257 Evaporator Pipe e20747...
  • Page 33 Shinco Service Manual Indoor eb35153 Air Sensor eb11665 Pipe sensor eb11666 Motor Cover e19258 Indoor Motor eb38560 Step Motor eb60073 Copper Pipe Clip e19256 Electric Controlling box Up Cover e19296 Indoor Controlling Board e50582 Electric Controlling box soleplate e19295 Electric Controlling box...
  • Page 34 Shinco Service Manual Axial Fan eb38658 Motor Bracket e30206 Outdoor Air Sensor eb11667 Condenser eQ00136 Top Cover e14335/e14336 4-way valve winding eb40103 4-way valve eb40090 discharge sensor eb11664 pipe sensor eb11667 Capillary assembly e20603 middle clipboard e15607 outdoor motor eb61530...
  • Page 35 Shinco Service Manual Exploding view and part list of KFR-35GWZ/BM Indoor unit Part Name Quantity BOM code Wall Mounted Board e18503 Chassis Assembly e535123 Cross Fan e19294 Left Axial Cover e19257 Evaporator Pipe e20748 Evaporator eQ00138 Frame Assembly e19297 7 include 8...
  • Page 36 Shinco Service Manual Indoor terminal block eb35153 Air Sensor eb11665 Pipe sensor eb11666 Motor Cover e19258 Indoor Motor eb38560 Step Motor eb60073 Copper Pipe Clip e19256 Electric Controlling box Up Cover e19296 Indoor Controlling Board e52125 Electric Controlling box soleplate...
  • Page 37 Shinco Service Manual Part Name Quantity BOM code Chassis Assembly e30640/e30641 Front Frame Assembly e14598/e14599 Axial Fan eb38658 Motor Bracket e30308 Outdoor Air Sensor eb11667 Condenser eQ00137 Top Cover e14335/e14336 4-way valve winding eb40103 4-way valve eb40094 discharge sensor eb11664...
  • Page 38 Shinco Service Manual 8.3 Exploding view and part list of KFR-50GWZ/BM Indoor unit Part Name Quantity BOM code Wall Mounted Board e17978 Chassis Assembly e19341 Cross Fan eb38669 Left Axial Cover e17980 Evaporator Pipe e20509 Evaporator eQ00139 Frame Assembly e19340...
  • Page 39 Shinco Service Manual Filter e17989 Display board Assembly e50543 Indoor terminal block eb35153 Air Sensor eb10007 Motor Cover e17982 Indoor Motor eb38668 Step Motor eb38162 Flume e19342 Copper Pipe Clip e17987 Electric Controlling box e30706 Electric Controlling box soleplate 1...
  • Page 40 Shinco Service Manual Part Name Quantity BOM code Chassis Assembly e30708/e30709 Front Frame Assembly e30741/e30742 Axial Fan eb38670 Motor Bracket e30684 Outdoor Air Sensor eb10011 Condenser eQ00140 Top Cover e30680/e30681 4-way valve winding eb40103 4-way valve eb40094 discharge sensor eb11664...
  • Page 41 Shinco Service Manual Exploding view and part list of KFR-70GWZ/BM Indoor unit Part Name Quantity BOM code Wall Mounted Board e18416 Air outlet vent assembly e535126 Chassis Assembly e19326 Cross Fan eb38667 indoor connect pipe 1/2 e20442/e18771 Evaporator eQ00141 Part Name...
  • Page 42 Shinco Service Manual Remote Controller eb85093 Display board Assembly e50543 Air Sensor eb10007 Indoor Controlling Board e50610 Indoor power Board e50609 Electric Controlling box top Cover e19325 Electric Controlling box e19324 Indoor terminal block e35153 Indoor Motor eb61535 Indoor Motor cover...
  • Page 43 Shinco Service Manual Part Name Quantity BOM code Chassis Assembly e30478/e30479 Front Frame Assembly e30693/e30694 Axial Fan eb38666 Outdoor motor eb61532 Motor Bracket e30512 middle clipboard e19166 outdoor air sensor eb10011 Condenser eQ00142 Top Cover e15838/e15839 outdoor pipe sensor eb11660...
  • Page 44: Service Warning

    Shinco Service Manual Part II 1. Service warning Part I General Warnings 1、 The service person should wear safety belt if working more than 2.5m above the ground. 2、 If working above ground level, measures should be adopted to prevent the outdoor unit or tools from falling and causing injuries or damage.
  • Page 45: Frequency Table

    Shinco Service Manual 2. Frequency table KFR-25GWZ/BM COOLING KFR-25GWZ/BM HEATING KFR-35GWZ/BM COOLING KFR-35GWZ/BM HEATING KFR-50GWZ/BM COOLING KFR-50GWZ/BM HEATING KFR-70GWZ/BM COOLING KFR-70GWZ/BM HEATING 3. Method of Testing the System at a Fixed Frequency Cooling Cooling rated capacity Heating Capacity(MIDDLE Heat rated capacity...
  • Page 46: Running Mode

    Shinco Service Manual 4. Running mode 4.1. Defrosting 1. Entry condition: Defrosting starts when meeting one of the following conditions a. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than 40 minutes, and the temperature remains consecutively -6°c for more than 3 minutes b.
  • Page 47 Shinco Service Manual A-—E: rise the present frequency one class (for example, from F3 to F4) F: Frequency keep unchanged G:lower the present frequency on class( for example, from F4 to F3), and the maximum frequency is F3 in G area.
  • Page 48 Shinco Service Manual When condenser temperature is higher than 60℃, the compressor will stop, and hen the condenser temperature lower to 50℃ and keep for 5 minutes, and compressor frequency will rise to former value 4.4. Dehumidifying mode 4.4.1 Temperature set and motor control in dehumidifying mode The compressor and outdoor fan run in dehumidifying mode similar as cooling mode, and the temperature can be set.
  • Page 49 Shinco Service Manual b. Frequency control during operation The frequency will change according to the RT-ST, and details see following fig. A-—E: rise the present frequency one class (for example, from F3 to F4) F: Frequency keep unchanged G:Lower the present frequency on class (for example, from F4 to F3), and the maximum frequency is F3 in G area.
  • Page 50 Shinco Service Manual 4.5.2 Indoor heat exchanger anti-overheated When indoor exchanger temperature is higher than 50 ℃, the compressor frequency indoor exchanger will be lowered down to protect the heat exchanger. When temperature lower down indoor exchanger to 46℃, the compressor frequency rise up, and when the temperature lower to 44 ℃...
  • Page 51: Protection

    Shinco Service Manual 4.9 Refrigerant charge mode Entry condition : Press the emergency switch over 5 seconds, there will be three “DU” sound in the indoor unit, and start the unit with the remote controller. Actions : 1. On cooling mode, the indoor fan speed is low the frequency is fixed on F6, 2.
  • Page 52 Shinco Service Manual KFR-25GWZ/BM MODE COOLING AND DEHUMIDIFYING 10.3 HEATING KFR-35GWZ/BM MODE COOLIGN AND DEHUMIDIFYING 11.6 HEATING 10.5 KFR-50GWZ/BM MODE COOLING AND DEHUMIDIFYING 10.5 12.5 HEATING 10.5 12.5 KFR-70GWZ/BM MODE COOLIGN AND DEHUMIDIFYING HEATING 5.3 Low voltage protection The compressor frequency changes as following fig. during low voltage:...
  • Page 53 Shinco Service Manual 6、Display lamp 6.1 Indoor display 1 Dual-Digital lamp; 2 Timer Lamp; 3 Operation lamp; 4 Protection Lamp; 5 cooling mode; 6 dehumidify mode; 7 heating mode 。 6.2 Fault code display KFR-25GWZ/BM、KFR-35GWZ/BM Item FAULT CODE CHECK POINT COUNT MEASURE CHECK IF THE INDOOR UNIT MATCH OUTDOOR UINT CHANGE WRONG UNIT。...
  • Page 54 Shinco Service Manual 1.CHECK IF THE CONNECTING WIRING IS CONNECT 1.FIX THE WIRING AGAIN。 WELL 2.TEST THE VOLTAGE VALUE BETWEEN L4 AND S, IF IT ‘S CHANGE REGULARLY,THE SINGAL TRANSFERING BETWEEN INDOOR AND OUTDOOR UNIT 2.CHANGE RELATE PCB BOARD IS GOOD,...
  • Page 55 Shinco Service Manual 1、INDOOR MOTOR OR INDOOR MOTOR CAPACITOR IS 1、CHANGE MOTOR OR CAPACITOR FAULT 2、FIX THE WIRINGS INDOOR MOTOR IS FAULT 2、INNER WIRING DON’T CONNECT WELL 3、CHANGE INDOOR PCB 3、INDOOR PCB IS FAULT 4、INDOOR MOTOR IS BLOCKED 4、REMOVE THE BLOCKING...
  • Page 56 Shinco Service Manual HIGH 2、CHECK IF THE VOLTAGE IS TOO LOW, POWER 2、 UPDATING POWER SUPPLY, CHANG POWER WIRING WRINGIS TOO THIN OR TOO LONG OR CONTACT 3、REMOVE OBSTACLE AROUND OUTDOOR UNIT OR BADLY WASH THE CONDENSER 3、CHECK IF THE OUTLET IS BLOCKED OR THE...
  • Page 57 Shinco Service Manual KFR-50GWZ/BM、KFR-70GWZ/BM Item FAULT CODE CHECK POINT COUNT MEASURE 1、CHECK THE SENSOR VALUE CHANGE SENDOR INDOOR AIR SENSOR IS FAULTY 2、INDOOR BOARD IS FAULT CHANGE INDOOR BOARD INDOOR PIPE SENSOR IS FAULTY INDOOR IN-PHASE MOTOR IS FAULT -----------------------...
  • Page 58 Shinco Service Manual DRIVER BOARD IS FAULT DRIVER BOARD IS FAULT DRIVER BOARD IS FAULT OCR TRIPED 1、COMPRESSOR OCR IS OPEN CURCUIT 1、CHANGE OCR OR COMPRESSOR 2、 CHECK IF THE OCR TEMPERATURE IS TOO HIGH AND OCR 2、 TURN OFF THE AIR CONDITIONER, AND RESTART...
  • Page 59: Annex

    Shinco Service Manual Annex PCB diagram KFR-25GWZ/BM、KFR-35GWZ/BM 1、 Indoor PCB - 59 -...
  • Page 60 Shinco Service Manual 2、 Outdoor power board - 60 -...
  • Page 61 Shinco Service Manual 3、 Outdoor diver board - 61 -...
  • Page 62 Shinco Service Manual 4、 Outdoor PFC board - 62 -...
  • Page 63 Shinco Service Manual KFR-50GWZ/BM 1、 Indoor PCB - 63 -...
  • Page 64 Shinco Service Manual 2、Outdoor power board - 64 -...
  • Page 65 Shinco Service Manual 3、outdoor driver board - 65 -...
  • Page 66 Shinco Service Manual KFR-70GWZ/BM 1、 Indoor power board - 66 -...
  • Page 67 Shinco Service Manual 2、Indoor driver board - 67 -...
  • Page 68 Shinco Service Manual 3、 outdoor power board - 68 -...
  • Page 69 Shinco Service Manual 4、outdoor driver board - 69 -...
  • Page 70 Shinco Service Manual Schematic KFR-25GWZ/BM、KFR-35GWZ/BM 1、 Indoor PCB - 70 -...
  • Page 71 Shinco Service Manual 2、 Outdoor power board - 71 -...
  • Page 72 Shinco Service Manual 3、Outdoor diver board - 72 -...
  • Page 73 Shinco Service Manual 4、Outdoor PFC board - 73 -...
  • Page 74 Shinco Service Manual KFR-50GWZ/BM 1、 Indoor PCB - 74 -...
  • Page 75 Shinco Service Manual 2、 outdoor power board - 75 -...
  • Page 76 Shinco Service Manual 3、 outdoor driver board - 76 -...
  • Page 77 Shinco Service Manual KFR-70GWZ/BM 1、 Indoor power board - 77 -...
  • Page 78 Shinco Service Manual 2、Indoor driver board - 78 -...
  • Page 79 Shinco Service Manual 3、 outdoor power board - 79 -...
  • Page 80 Shinco Service Manual 4、outdoor driver board - 80 -...
  • Page 81 Shinco Service Manual - 81 -...

This manual is also suitable for:

Kfr-35gwz/bmKfr-50gwz/bmKfr-70gwz/bm

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