Sinclair SDV4-200EA Technical & Service Manual
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Sinclair SDV4-200EA Technical & Service Manual

Sdv4 series full dc inverter systems
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IV
FULL DC INVERTER SYSTEMS
TECHNICAL SERVICE MANUAL
SDV4 - SMALL OUTDOOR UNITS
SDV4-200EA, SDV4-224EA, SDV4-260EA
C O M M E R C I A L A I R C O N D I T I O N E R S S D V 4

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  • Page 1 TECHNICAL SERVICE MANUAL SDV4 - SMALL OUTDOOR UNITS SDV4-200EA, SDV4-224EA, SDV4-260EA C O M M E R C I A L A I R C O N D I T I O N E R S S D V 4...
  • Page 2 Original instructions...
  • Page 3 Contents Part 1 General Information ........1 Part 2 Outdoor Units ..........9 Part 3 Installation ............ 42 Part 4 Troubleshooting…………………………………61 Manufacture reserves the right to discontinue, or change at any time, specifications or designs without notices and without incurring obligations. Contents...

  • Page 5: Part 1 General Information

    Part 1 General Information 1. Product Lineup ..............2 2. Nomenclature ..............3 3. Features ................4 General Information...

  • Page 6: Product Lineup

    1. Product Lineup Model name Dimension body (mm) Net/Gross weight (kg) Power supply Width: 1120 SDV4-200EA Height: 1558 137/153 380-415V / 3ph~ / 50Hz Depth:400 Width: 1120 SDV4-224EA Height: 1558 146.5/162.5 380-415V / 3ph~ / 50Hz Depth:400 Width: 1120 SDV4-260EA...

  • Page 7: Nomenclature

    2. Nomenclature SDV4 – 260 E A Refrigerant type R410A External / Outdoor Unit Cooling Capacity (x100W) Sinclair - DC Inverter - Variable Nomenclature...

  • Page 8: Features

    12 zones with one outdoor unit. Such as villa, restaurant, school etc. Sinclair offers a variety of indoor unit, more than 40 models of 7 types. Capacity ranges are from 1.5kW to 16kW. It is full compliance with residential and light commercial place. Our systems can operate up to 130% of capacity which allows any system to be designed to the customers’...
  • Page 9 High efficient DC inverter compressor .Full DC inverter Individual VRF adopts highly intelligent inverter-driven compressor. This advanced technology enables the output of the outdoor unit to be modulated by the real heat load demands. This advanced system ensures precise temperature regulation and highly efficient energy usage, making a significant contribution to the limiting the impact on the environment.
  • Page 10 3.6 Wide operation temperature range No matter in extremely cold winter when outdoor COOLING MODE temperature gets as low as -15°C or in hot summer 48° C -15° C when temperature is up to 48°C, the individual VRF HEATING MODE system will keep stable performance.
  • Page 11 Outdoor unit can distribute address for indoor unit automatically Shield signal wire Wired and wireless controller can enquire and modify address of each IDU. 3.11 Easy installation Easy to transport The individual VRF can be transported by elevator which makes installation dramatically easy, and effectively reduces time and labor thanks to the small size.
  • Page 12 Features...

  • Page 13: Table Of Contents

    Part 2 Outdoor Units Specifications ..................10 Dimensions ................... 12 Service Space ..................13 Piping Diagrams ................... 14 Wiring Diagrams ................... 15 Field Wiring ................... 16 Capacity Tables ..................17 Electric Characteristics ............... 38 Sound Levels ..................40 Operation Limits ................... 41 Outdoor Units...

  • Page 14: Specifications

    Specifications Sale Model SDV4-200EA SDV4-224EA 220095103370 Code 220095103380 380-415V-3N~50Hz Power supply V-Ph-Hz 380-415V-3N~50Hz 20.0 22.4 Capacity Cooling Input kW/ kW 3.28 3.29 Capacity 22.0 24.5 Heating Input kW/ kW 3.61 4.15 Max. input consumption 9400 10013 Max. current 14.5 17.2...
  • Page 15 Sale Model SDV4-200EA SDV4-224EA 220095103370 Code 220095103380 Dimension(W x H x D) 1120×1558×400 1120×1558×400 Outdoor Unit Packing (W x H x D) 1270×1575×480 1270×1575×480 Net/Gross weight 137/153 146.5/162.5 R410A R410A Type Refrigerant 4800 6200 Charged volume Throttle type Electronic expansion valve Design pressure 4.4/2.6...
  • Page 16 Sale Model SDV4-260EA Code 220095103390 Outdoor fan ASG20 Material Axial fan Type Outdoor fan Diameter Height Number of rows Tube pitch(a)x 21 x 19.4 row pitch(b) Fin spacing Tube outside Ф7 Outdoor coil dia.and type Inner groove tube Coil length x height 1080 x 756 Number of...

  • Page 17: Dimensions

    Dimensions 1120 202.7 Dimensions...

  • Page 18: Service Space

    Service Space Single unit installation (Wall or obstacle) Air inlet >300 Maintain the electric wire and pipeline Air inlet >600 Air outlet Parallel connect the two units or above >300 >600 >3000 Parallel connect the front with rear sides >6000 >3000 >1000 >4000...

  • Page 19: Piping Diagrams

    Piping Diagrams 20kW 22.4/26kW Piping Diagram...

  • Page 20: Wiring Diagrams

    Wiring Diagram Wiring diagram...

  • Page 21: Field Wiring

    Field Wiring Terminal of Outdoor unit 6.2 Indoor wiring Field Wiring...

  • Page 22: Capacity Tables

    7.Capacity Tables SDV4-200EA Cooling Indoor temperature(°C DB/WD) Combinati Outdoor DB:20.8,WB DB:23.3,WB DB:25.8,WB DB:27,WB:1 DB:28.2,WB:2 DB:30.7,WB: DB:32,WB:2 on (%) temperat (Capacity ure (°C index) 17.57 2.49 20.93 3.04 24.28 3.26 25.21 3.40 26.43 3.49 27.07 3.80 27.75 3.82 17.57 2.49 20.93 3.10...
  • Page 23 14.86 2.21 17.72 2.69 20.57 3.22 22.00 3.45 23.43 3.72 25.22 3.88 25.79 3.98 14.86 2.26 17.72 2.72 20.57 3.25 22.00 3.49 23.43 3.77 25.22 3.93 25.79 4.02 14.86 2.28 17.72 2.75 20.57 3.29 22.00 3.54 23.43 3.82 25.22 3.97 25.79 4.08 14.86...
  • Page 24 12.14 2.07 14.50 2.52 16.86 2.99 18.00 3.29 19.14 3.60 21.50 4.27 23.00 4.67 12.14 2.11 14.50 2.61 16.86 3.21 18.00 3.53 19.14 3.86 21.50 4.58 22.64 4.88 12.14 2.23 14.50 2.80 16.86 3.43 18.00 3.77 19.14 4.13 21.50 4.90 22.36 5.10 12.14...
  • Page 25 9.43 2.80 11.29 3.41 13.07 4.03 14.00 4.48 14.93 4.77 16.71 5.72 18.57 6.66 9.43 2.87 11.29 3.48 13.07 4.11 14.00 4.56 14.93 5.01 16.71 6.03 18.57 6.91 9.43 2.94 11.29 3.52 13.07 4.15 14.00 4.63 14.93 5.15 16.71 6.30 18.57 7.08 8.07...
  • Page 26 Heating Indoor temperature(° C WB) Outdoor Air Combinatio temperature n (%) (° C DB) (Capacity index) ° C DB ° C WB -19.8 14.25 4.31 14.18 4.61 14.11 4.92 14.11 5.07 14.04 5.22 14.04 5.53 -18.8 14.46 4.40 14.39 4.71 14.39 5.01 14.32...
  • Page 27 -19.8 14.04 5.55 13.97 5.78 13.97 6.01 13.90 6.13 13.90 6.24 13.83 6.48 -18.8 14.25 5.62 14.25 5.85 14.18 6.08 14.18 6.20 14.11 6.31 14.11 6.54 -16.7 14.81 5.78 14.74 6.00 14.74 6.22 14.67 6.33 14.67 6.44 14.67 6.66 -13.7 15.44 5.94 15.36...
  • Page 28 -11.8 15.82 7.19 15.82 7.33 15.40 7.15 14.84 6.88 14.35 6.60 13.38 6.05 -9.8 16.58 7.30 16.37 7.30 15.40 6.76 14.84 6.50 14.35 6.23 13.38 5.73 -9.5 17.00 7.37 16.37 7.08 15.40 6.56 14.84 6.31 14.35 6.06 13.38 5.57 -8.5 -9.1 17.35 7.41...
  • Page 29 SDV4-224EA Cooling Indoor temperature(°C DB/WD) Combinati Outdoor DB:20.8,WB DB:23.3,WB DB:25.8,WB DB:27,WB:1 DB:28.2,WB:2 DB:30.7,WB: DB:32,WB:2 on (%) temperat (Capacity ure (°C index) 19.68 2.78 23.44 3.39 27.20 3.64 28.24 3.78 29.60 3.89 30.32 4.23 31.08 4.26 19.68 2.78 23.44 3.46 27.20 3.64 28.24 3.81...
  • Page 30 -11.8 15.82 7.19 15.82 7.33 15.40 7.15 14.84 6.88 14.35 6.60 13.38 6.05 -9.8 16.58 7.30 16.37 7.30 15.40 6.76 14.84 6.50 14.35 6.23 13.38 5.73 -9.5 17.00 7.37 16.37 7.08 15.40 6.56 14.84 6.31 14.35 6.06 13.38 5.57 -8.5 -9.1 17.35 7.41...
  • Page 31 -19.8 14.04 5.55 13.97 5.78 13.97 6.01 13.90 6.13 13.90 6.24 13.83 6.48 -18.8 14.25 5.62 14.25 5.85 14.18 6.08 14.18 6.20 14.11 6.31 14.11 6.54 -16.7 14.81 5.78 14.74 6.00 14.74 6.22 14.67 6.33 14.67 6.44 14.67 6.66 -13.7 15.44 5.94 15.36...
  • Page 32 Heating Indoor temperature(° C WB) Outdoor Air Combinatio temperature n (%) (° C DB) (Capacity index) ° C DB ° C WB -19.8 14.25 4.31 14.18 4.61 14.11 4.92 14.11 5.07 14.04 5.22 14.04 5.53 -18.8 14.46 4.40 14.39 4.71 14.39 5.01 14.32...
  • Page 33 Heating Indoor temperature(° C WB) Outdoor Air Combinatio temperature n (%) (° C DB) (Capacity index) ° C DB ° C WB -19.8 15.87 4.17 15.79 4.46 15.71 4.76 15.71 4.90 15.63 5.05 15.63 5.35 -18.8 16.10 4.26 16.02 4.55 16.02 4.84 15.94...
  • Page 34 -13.7 17.19 5.75 17.11 5.95 17.03 6.16 17.03 6.27 17.03 6.37 16.96 6.57 -11.8 17.89 5.92 17.89 6.11 17.81 6.31 17.81 6.41 17.81 6.51 17.73 6.70 -9.8 18.74 6.08 18.67 6.27 18.67 6.45 18.67 6.55 18.59 6.64 18.59 6.83 -9.5 19.21 6.16 19.13...
  • Page 35 -8.5 -9.1 19.32 7.16 18.24 6.67 17.15 6.18 16.53 5.94 15.99 5.71 14.90 5.25 -7.6 19.32 6.84 18.24 6.37 17.15 5.91 16.53 5.69 15.99 5.46 14.90 5.03 -5.6 19.32 6.43 18.24 5.99 17.15 5.56 16.53 5.35 15.99 6.32 14.90 4.74 -3.7 19.32 6.05...
  • Page 36 SDV4-260EA Cooling Indoor temperature(°C DB/WD) Combinati Outdoor DB:20.8,WB DB:23.3,WB DB:25.8,WB DB:27,WB:1 DB:28.2,WB:2 DB:30.7,WB: DB:32,WB:2 on (%) temperat (Capacity ure (°C index) 22.84 3.11 27.21 3.79 31.57 4.06 32.78 4.23 34.35 4.35 35.19 4.73 36.08 4.76 22.84 3.11 27.21 3.87 31.57 4.06 32.78 4.25...
  • Page 37 19.31 2.81 23.03 3.39 26.74 4.06 28.60 4.35 30.46 4.70 32.78 4.90 33.52 5.00 19.31 2.84 23.03 3.43 26.74 4.09 28.60 4.42 30.46 4.75 32.78 4.95 33.52 5.08 19.31 2.86 23.03 3.49 26.74 4.14 28.60 4.46 30.46 4.81 32.78 4.98 33.52 5.13 19.31...
  • Page 38 15.79 2.63 18.85 3.26 21.91 3.99 23.40 4.39 24.89 4.81 27.95 5.70 29.43 6.08 15.79 2.78 18.85 3.48 21.91 4.27 23.40 4.70 24.89 5.14 27.95 6.10 29.07 6.35 15.79 2.95 18.85 3.71 21.91 4.56 23.40 5.02 24.89 5.50 27.95 6.53 28.60 6.62 15.79...
  • Page 39 12.26 3.49 14.67 4.25 16.99 5.02 18.20 5.59 19.41 5.94 21.73 7.13 24.14 8.29 12.26 3.57 14.67 4.34 16.99 5.12 18.20 5.68 19.41 6.24 21.73 7.52 24.14 8.61 12.26 3.66 14.67 4.38 16.99 5.17 18.20 5.77 19.41 6.41 21.73 7.85 24.14 8.81 10.49...
  • Page 40 Heating Indoor temperature(° C WB) Outdoor Air Combination temperature (%) (Capacity (° C DB) index) ° C ° C WB -19. 18.46 4.80 18.37 5.14 18.28 5.48 18.28 5.65 18.19 5.82 18.19 6.16 -18. 18.73 4.91 18.64 5.25 18.64 5.58 18.55 5.75 18.55...
  • Page 41 -18. 18.46 6.26 18.46 6.52 18.37 6.77 18.37 6.91 18.28 7.04 18.28 7.29 -16. 19.18 6.44 19.09 6.69 19.09 6.93 19.00 7.06 19.00 7.18 19.00 7.43 -13. 20.00 6.62 19.90 6.86 19.81 7.10 19.81 7.22 19.81 7.34 19.72 7.58 -11. 20.81 6.82 20.81...
  • Page 42 -8.5 -9.1 22.48 8.26 21.21 7.68 19.95 7.12 19.23 6.84 18.60 6.58 17.33 6.05 -7.6 22.48 7.89 21.21 7.34 19.95 6.81 19.23 6.55 18.60 6.30 17.33 5.79 -5.6 22.48 7.41 21.21 6.91 19.95 6.41 19.23 6.16 18.60 7.28 17.33 5.47 -3.7 22.48 6.98...

  • Page 43: Electric Characteristics

    Electric Characteristics Outdoor Unit Power Supply Compressor Model Voltage Min. Max. TOCA 380V~415V 342V 440V 0.37 SDV4-200EA 380V~415V 342V 440V 15.4 0.35 SDV4-224EA 380V~415V 342V 440V 15.4 0.35 SDV4-260EA Remark: TOCA: Total Over-current Amps. (A) MFA: Max. Fuse Amps. (A) RLA: Rated Locked Amps.

  • Page 44: Sound Levels

    Sound Levels Model Noise level dB(A) Height (m) SDV4-200EA SDV4-224EA SDV4-260EA Sound Levels...

  • Page 45: Operation Limits

    10. Operation Limits Mode Outdoor temp. Indoor temp. Room relative humidity Cooling mode -15°C ~ 48°C 17°C ~ 32°C below 80% Heating mode -15°C ~ 27° C 15°C ~30°C ─── Notes: 1. If the unit is running outside the above condition, protective device will start, and even then the units take place abnormality running.

  • Page 46: Part 3 Installation

    Part 3 Installation Precautions ................... 43 Accessories ..................44 Ourdoor Unit Intstallation ..............45 Piping Installation ................. 47 Electric Wiring Installation ..............52 Outdoor Unit Wiring ................55 Test Running ..................59 Precautions on Refrigerant Leakage ..........60 Installation...

  • Page 47: Precautions

    1. Precautions Ensure that all Local, National and International regulations are satisfied.   Read this “PRECAUTIONS” carefully before Installation. The precautions described below include the important Items regarding safety.  Observe them without fail.  After the installation work, perform a trial operation to check for any problem. ...

  • Page 48: Accessories

    Install the air conditioner securely in a location where the base can sustain the weight adequately. Perform the specified installation work to guard against an earthquake. If the air conditioner is not installed appropriately, accidents may occur due to the falling unit. Electrical work must be performed by a qualified electrician in accordance with the Installation Manual.

  • Page 49: Outdoor Unit Installation

    3. Outdoor unit installation 3.1 Installation space selection Install the outdoor unit at a place where discharge air is not blocked. When an outdoor unit is installed in a place that  is always exposed To a strong wind like a coast or on the high store of a building, secure a normal fan operation by using a duct or a ...
  • Page 50 Single unit installation (Wall or obstacle) Air inlet >300 Maintain the electric wire and pipeline Air inlet >600 Air outlet Parallel connect two units or above >300 >600 >3000 Parallel connect the front with rear sides >6000 >3000 >1000 >4000 >300 All the pictures in this manual are for explanation purpose only.

  • Page 51: Piping Installation

    4. Piping installation 4.1 Piping connection Various piping and wiring patterns can be selected, such as out from the front and the side. (The follow display the locations of several piping and wiring knock-off interfaces.) Front out pipe Side out pipe Caution: 1.
  • Page 52 The first connecting method Outdoor unit Pipe Length(from the nearest branch pipe equivalent length Maximum pipe equivalent length The first line Branch Pipe (from the first line branch pipe) Maximum pipe equivalent length Indoor Unit The second connecting method The second cennect methond Outdoor unit Pipe Length(from the nearest branch pipe equivalent length...
  • Page 53 4.3 Refrigerant pipe selection The first connecting method Outdoor Unit The first line pipe branch The second connecting method Outdoor Unit(Take Model 14kW for example) (28) intdoor Units (28) (28) The first line pipe branch (28) (28) (22) Pipe definition Pipe connecting position Code The pipe between outdoor units to the...
  • Page 54 The straight distance which the branch pipes connected to the indoor unit is at least 0.5m; Table4: Outdoor unit pipe connection Piping side Outdoor unit pipe connection (mm) MODEL Gas Side Liquid Side Φ 19,1 Φ 9,5 SDV4-200EA Φ 19,1 Φ 9,5 SDV4-224EA Φ 22,2 Φ 9,5 SDV4-260EA Outdoor Unit Maximum Quantity of...
  • Page 55 4.5 Airtight Test Charge pressured nitrogen after connecting indoor/outdoor unit piping to do airtight test. Cautions: Pressured nitrogen [4.3MPa (44kg/cm) for R410A] should be used in the airtight test. Tighten high pressure/low pressure valves before applying pressured nitrogen. Apply pressure from air vent mouth on the high pressure/low pressure valves. The high pressure/low pressure valves are closed when applying pressured nitrogen.

  • Page 56: Electric Wiring Installation

    5． Electric Wiring Installations 5. 1 Highlights of electrical installation 1) Please separately design the special power of indoor units and outdoor units. 2) The power adopts special circuit, and installs creepage protector and manual switch. 3) The indoor units’ power, creepage protector and manual switch connecting to the same outdoor unit must be general.
  • Page 57 4) The wiring with different voltage should not pass through the same wire tube. 5) Total sectional area of wiring through wire tube shall not exceed 40% valid area of stuffing tube. 6) Fixing point of wire tube support shall follow the standard below: Normal diameter of wire tube Largest gap between fixed points of wire tube Metal pipe Plastic pipe...
  • Page 58 5.5.5 Indoor unit power wiring selection Note: 1) Refrigerant piping system, indoor unit-indoor unit connection signal wires and indoor unit-outdoor unit connection signal wire are in the same system. 2) When power cord is parallel with signal wire, please put them into separate wire distribution pipes, and leave a proper distance.

  • Page 59: Outdoor Unit Wiring

    6. Outdoor Unit Wiring 6.1The Specification of Power Table 6-1 Capacity 20~22.4kW 26kW Phase 3 phase 3 phase Voltage and Outdoor Unit power 380-415V~ 50Hz 380-415V~ 50Hz Frequency Power Wiring(mm 5-core X6.0 5-core X6.0 Circuit Breaker/Fuse (A) Indoor unit/Outdoor unit Signal wire 3-core shielded wire 3-core shielded wire (Weak electric signal) (mm...
  • Page 60 Wiring the indoor unit and outdoor unit control CAUTION The reserved function is indicated in broken line table, users can select it when necessary. Indoor/Outdoor Unit Signal Wire Connect the wire according to their numbers. Wrong connection may cause malfunction. Wiring Connection Seal the wiring connection with the insulation material, or the condensing dew will be caused.

  • Page 61: Indoor Unit Wiring

    6.2 Indoor Unit Wiring Power Supply Table 6-2 1.8~16 Capacity (kW) 1- phase Phase 220-240V~ 50Hz indoor Unit power Frequency and Voltage 3-core×1.0 Power Wiring(mm Circuit Breaker (A) 3-core shielded wire 3X0.75 Indoor unit/Outdoor unit Signal wire (Weak electric signal) (mm 1.
  • Page 62 Indoor unit power supply wiring Indoor Power Supply Circuit Breaker Manual swtich Wire Distribution Box Indoor Unit Fig.6-4 CAUTION 1. Refrigerant piping system, indoor unit-indoor unit connection signal wires and indoor unit-outdoor unit connection signal wire are in the same system. 2.

  • Page 63: Test Running

    7.Test Running Operate according to “key points for test running” on the electric control box cover. CAUTION Test running cannot start until the outdoor unit has been connected to the power for 12hours.  Test running cannot start until all the valves are affirmed open. ...

  • Page 64: Precautions On Refrigerant Leakage

    8.Precautions on Refrigerant Leakage This air conditioner (A/C) adopts innocuous and nonflammable refrigerant. The locating room of the A/C should big enough that any refrigerant leakage is unable to reach critical thickness. So certain essential action can be taken on time. Refrigerant critical thickness: 0.44[kg/m ] for R410A.

  • Page 65: Part 4 Troubleshooting

    Part 4 Troubleshooting 1. PCB ports instructions ..........62 2. PCB parts instructions ..........63 3. Error code table ............70 4. Troubleshooting............71 Troubleshooting...
  • Page 66 1. PCB ports instructions PCB ports instruction Content Port voltage 1 CN41 Power input port of the main panel valve 220V Load output port, crankcase heater HEAT1 & HEAT2 2 CN21 220V Load output port 3 CN22 Load output port 220V 4 CN20 Load output port...
  • Page 67 Indoor and outdoor units communication port, indoor unit network port, 17 CN7 DC2.5~5V outdoor unit network port, and network charging connection port Signal input port for system high pressure and low pressure detection DC0~5V (in dynamic 18 CN24 change) switch DC0~5V (in dynamic 19 CN9 Temperature detection port for outdoor ambient...
  • Page 68 7. -- Working indoor unit quantity Actual value 8. -- Program version 00 is displayed if no fault occurs or 9. -- Last fault or protection code protection has not been activated. 0. -- Check completed. Remark: 1) Normal display: In standby mode, the number of indoor units that communicate with outdoor units is displayed.
  • Page 69 S5 Function definition Heatin g priorit y Heatin g onl y mod e mod e (sette d by factor y default ) 1 2 3 1 2 3 1 2 3 Coolin g priorit y Coolin g onl y mod e mod e 1 2 3 1 2 3...
  • Page 70 LED4: Malfunction indicator lamp of inverter module. The lamp will flash if the inverter module is faulty and the error code will display on digital tube. LED5: Running indicator lamp of inverter module. The lamp will be on if the compressor is running. 2.5 Description of Main Control Board of Indoor unit There are two shapes of main control board that used to all types of indoor unit matching with SDV4 outdoor unit.
  • Page 71 Shape 2 Dial codes definition 0/1 definition Means 0 Means 1 SW1 definition 1 means factory test mode 1 means DC fan is chosen 0 means default auto addressing 0 means AC fan is chosen mode 00 means DC fan static pressure is 01 means DC fan static pressure is 0 (reserved) 1 (reserved)
  • Page 72 SW2 definition 00 means shutting down the unit to 01 means shutting down the unit to stop cold air at 15℃ stop cold air at 20℃ 10 means shutting down the unit to 11 means shutting down the unit to stop cold air at 24℃...
  • Page 73 Run LED flashes Temperature sensor T2B error Defrost LED flash slowly EEPROM error Alarm LED flashes slowly Outdoor unit error Alarm LED flash Water level alarm Note: Some unit that has digital tube will show the error code when error occurs, others show lamp indication.
  • Page 74 3. Error code table (ODU) Error Content Note code IR341 and 78F0034 communication error 0537 and 78F0034 communication error P6 protections happen 3 times in 30 minutes. Recover until electricity reset. P2 protections happen 3 times in 30 minutes. Recover until electricity reset. H7 will display after the unit is operating for 3 minutes or Quantity of indoor units decrease error more if the quantity of indoor unit decrease.

  • Page 75: Troubleshooting

    4. Troubleshooting 4.1 H0/H1 H0: IR341 and 78F0034 communication error H1: 0537 and 78F0034 communication error IR341 chip: IR 341chip is used for inverter compressor drive. 0537 chip: 0537chip is used for control the communication between indoor unit and outdoor unit, and the communication between outdoors 78F0034 chip: 78F0034 chip is the main chip, it is used for the whole system control.
  • Page 76 4.2 H4: when P6 protection happens 3 times in 30 minutes,H4 displays. H4 displays P6 protection happens 3 times in 30 minutes. Recover until power on again. P6 displays IPM module protection (IPM refers to inverter module) Adjust to the right range, Check whether the P-N voltage range of and then check whether Check whether the input power supply...
  • Page 77 4.3 H5: when P2 low pressure protection happen 3 times in 30 minutes, H5 displays. LED display H5 P2 low pressure protection happen 3 times Recover until power on again. in 30 minutes. Judge1: wiring between low pressure switch and main PCB is Connect well again.
  • Page 78 4.4 H7: Quantity of indoor units decrease. LED display H7 Check the quantities of indoor unit Check the communication wiring between outdoor Connect the communication wire unit and indoor unit is connected well. again. Check the address of indoor unit is Reset the address again repeated or not.
  • Page 79 4.5 HF: not matched with M_Home series. LED display HF The communication between indoor unit chip and outdoor unit chip is not matched. Check whether the model of indoor and outdoor unit is Replace indoor unit or chip of indoor matched or not.
  • Page 80 4.6 E2: Communication malfunction between indoor unit chip and outdoor unit chip. LED displays E2 Communication malfunction between indoor unit chip and outdoor unit chip. Judge 1: Check whether the indoor unit is Plug the indoor unit in. power on Judge 2: check whether the three-cored Replace shielded wire or earth the wire shielded wire is used as the communication...
  • Page 81 4.7 E4: T3&T4 sensor malfunction LED displays E4 Judge 1: T3&T4 sensor malfunction Replace T3/T4 sensor Judge: whether the body is broken. Connect the wire again. Judge whether temperature sensor pin connects Connect again. properly. Replace main PCB Troubleshooting...
  • Page 82 4.8 E5: Voltage protection malfunction LED displays E5 Voltage protection malfunction Judge whether the input voltage is 180-260V Check the power supply. Replace the filter board to check whether the unit operates normally. Replace the main PCB Troubleshooting...
  • Page 83 4.9 E6: Outdoor unit DC fan cannot work. LED displays E6 Outdoor unit DC fan cannot work. Check whether there is strong air blows It belongs to normal protection. the fan wheel when the fan running. Refers to the wiring nameplate to check Connect again.
  • Page 84 4.10 E7: Discharged temperature sensor malfunction. LED displays E7 Judge whether the discharged temperature Install again. sensor is installed inside the branch pipe. Judge whether the plug of the discharged Connect again. temperature sensor is connected properly. Judge: whether the wiring Connect again.
  • Page 85 4.11 EA: T3 pipe temperature exceeds 27 degrees for more than 5 minutes when heating mode. LED displays EA System faulty that T3 pipe temperature exceeds 27 degrees for more than 5 minutes when heating mode. Whether the outdoor ambient temperature is higher than Belongs to system the unit’s operating condition when heating mode.
  • Page 86 4.13 P1 malfunction: High pressure protection or discharged temperature switch protection. LED displays P1(high pressure protection) High pressure protection Judge 1: whether the wiring is correct. Connect again. Judge 2: whether the wire body is broken. Judge: short-circuit high pressure switch. Check the Replace the high pressure system can operate normally.
  • Page 87 LED displays P1( discharged temperature switch protection) P1(discharged temperature switch protection) Discharged temperature switch protection Check whether the discharged temperature is higher than 115 degrees. Check whether the discharged temperature sensor of the compressor connect with PCB Connect correctly again. correctly according to the wiring diagram.
  • Page 88 4.14 P2: Low pressure protection LED displays P2 Low pressure protection Judge 1: whether wiring connection between low pressure Connect well switch and PCB is connected well or properly. again. Judge 2: whether the low pressure switch is damaged. Confirm: short-circuit low pressure switch and check Replace low pressure.
  • Page 89 4.15 P3: Input current protection It will protect when input current is more than 23A. It will recover when input current is less than 23A. It will recover automatically. LED displays P3 Input current protection Judge 1: check whether the input current of the power wire is more than 23A.
  • Page 90 4.16 P4:When the discharged temperature of the compressor is higher than 115° C, the unit will stop running. When the discharged temperature of the compressor is lower than 80° C , the unit resumes normal operation automatically. LED displays P4 Discharged temperature of the compressor Check whether the discharged temperature of the compressor is higher than 115°...
  • Page 91 4.17 P5: When condenser temperature is higher than 62 degrees for 3 seconds, the unit will stop operating. Then when pipe temperature outside is lower than 52 degrees, the unit will resume operate. LED displays P5 Condenser T3 high temperature protection Check whether condenser temperature is higher than 62 degrees for 3 seconds.
  • Page 92 4.18 P6: Module protection LED displays P6 IPM module protection Adjust to the right range. Then check Check whether the input power is whether the system correct. The power is Check whether P-N voltage on the IPM module 380-415V, runs normally. is OK.
  • Page 93 4.19 P8: Typhoon protection LED displays P8 Typhoon protection When air conditioner is standby or in malfunction stopping status, Belongs to normal protection check if there is strong air blows the fan phenomenon. Check whether the fan motor is normal. Replace fan motor.
  • Page 94 4.20 PE malfunction When the middle average temperature of the evaporator is higher than 63 degrees for 50 seconds, the unit will stop operating. When pipe temperature is lower than 50 degrees, the unit will resume running. LED displays PE Evaporator T2 high temperature protection Check whether average temperature of evaporator is higher than 63 degrees for 50 seconds or not.
  • Page 96 SDV4-200EA...
  • Page 97 Description Part Code Note Qty Price Code MODEL: SDV4-200EA Outdoor unit Rear vertical panel (SB2014) 201248900016 Front panel (SB2014) 201243900048 Cover (SB2014) 201248900022 Screen ass'y (S2014) 201148700017 Bracket ass'y, net 201295100579 Partition board ass'y 201295100645 High pressure valve ass'y 201695101848...
  • Page 98 SDV4-224EA...
  • Page 99 Description Part Code Note Qty Price Code MODEL: SDV4-224EA Outdoor unit Rear vertical panel (SB2014) 201248900016 Cover (SB2014) 201248900022 Front panel (SB2014) 201243900048 Screen ass'y (S2014) 201148700017 Bracket ass'y, net 201295100579 Motor bracket 201295100623 Valve plate 201295100642 Partition board ass'y 201295100645 E-part box ass'y 203395190223...
  • Page 100 SDV4-260EA...
  • Page 101 Description Part Code Note Qty Price Code MODEL: SDV4-260EA Outdoor unit Left column, rear (SB2014) 201248900016 Cover (SB2014) 201248900022 Front panel (SB2014) 201243900048 Outlet grille ass'y (S2014) 201148700017 Bracket ass'y, net 201295100579 Motor bracket 201295100623 Valve plate 201295100642 Partition board ass'y 201295100645 E-part box ass'y 203395190223...
  • Page 102 Description Part Code Note Qty Price Code MODEL: SDV4-260EA Outdoor unit Axial fan assy 201100320624 DC motor 202400300063 Discharge temp sensor ass'y 202301300124 Room temp sensor ass'y 202301300197 Outdoor coil temp sensor ass'y 202301300438 The data are subject to change without notice.
  • Page 104 Waste Acts of respective country, in the Czech Republic in Act no. 185/2001 Coll., in the wording of later regulations. In case of incorrect disposal of this waste, a fine can be imposed according to national regulations. Manufacturer: Sinclair Corporation Ltd. 1-4 Argyll Street London W1F 7LD United Kingdom Supplier and technical support: Nepa, spol.s.r.o.

This manual is also suitable for:

Sdv4-224eaSdv4-260ea

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