1. Manuals
  2. Brands
  3. Sinclair Manuals
  4. Air Conditioner
  5. SDV4 series
  6. Technical & service manual

Sinclair SDV4 Series Technical & Service Manual

Full dc inverter systems commercial air conditioners small outdoor units
Hide thumbs Also See for SDV4 Series:
Table of Contents

Advertisement

Quick Links

Enlarged version
IV
FULL DC INVERTER SYSTEMS
TECHNICAL SERVICE MANUAL
SDV4 - SMALL OUTDOOR UNITS
SDV4-140EAA, SDV4-160EAA
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

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SDV4 Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Sinclair SDV4 Series

Summary of Contents for Sinclair SDV4 Series

  • Page 1 FULL DC INVERTER SYSTEMS TECHNICAL SERVICE MANUAL SDV4 - SMALL OUTDOOR UNITS SDV4-140EAA, SDV4-160EAA 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 ............50 Part 4 Troubleshooting..........68 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 1. Product Lineup Outdoor Units Model name Dimension body (mm) Net/Gross weight (kg) Power supply Width: 900 SDV-140EAA Height: 1327 95/103 380-415V-3ph~ 50Hz Depth:320 Width: 900 SDV-160EAA Height: 1327 102/113 380-415V-3ph~ 50Hz Depth:320 Product Lineup...
  • Page 7 2. Nomenclature SDV4 - 140 E A A Auto-addressing option Refrigerant (R410a) Outdoor unit Cooling Capacity ( × 100W) Sinclair - DC Invertor - Variabilní Nomenclature...
  • Page 8 7 zones with one outdoor unit. Such as villa, restaurant, school etc. Sinclair offers a variety indoor unit, more than 40 models of 7 types. Capacity ranges are from 2.2kW to 16 kW. 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 and applications needs.
  • Page 9 High efficient DC inverter compressor Sinclair small outdoor units adopt 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 small outdoor HEATING MODE unit 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 piping connection Offering four directions to connect pipes and wirings Upper side to meet various installation requests. Front side Right side Bottom side...
  • Page 12 4. Notes If ODU connect only one IDU, the capacity of IDU should be not more than ODU. If ODU connect more than one IDU, the capacity of each IDU should be not more than 8kW for refrigerant uniform distribution. Due to continuous improvement, specifications are subject to change without prior notice.

  • Page 13: Table Of Contents

    Part 2 Outdoor Units Specifications ..................10 Dimensions ..................12 Service Space ..................13 Piping Diagrams ................. 14 Wiring Diagrams ................. 15 Field Wiring ..................17 Capacity Tables .................. 18 Electric Characteristics ..............46 Sound Levels ..................47 Operation Limits ................. 48 Outdoor Units...

  • Page 14: Specifications

    Specifications Sale Model SDV4-140EAA SDV4-160EAA 220095102340 Code 220095102370 380-415V-3N~50Hz Power supply V-Ph-Hz 380-415V-3N~50Hz 14.0 15.5 Capacity Cooling Input 3.95 4.52 kW/ kW 3.54 3.43 Capacity 15.4 17.0 Heating Input 4.16 4.77 kW/ kW 3.56 7100 Max. input consumption 6200 Max. current LNB42FSAMC Model TNB306FPNMC...
  • Page 15 Sale Model SDV4-140EAA SDV4-160EAA 220095102340 220095102370 Code Dimension(W x H x D) 900 x 1327 x 320 900 x 1327 x 320 Outdoor Unit Packing (W x H x D) 1030 x 1456 x 435 1030 x 1456 x 435 102/113 Net/Gross weight 95/103...
  • Page 16 Specifications...

  • Page 17: Dimensions

    Dimensions （unit：mm） M O D E L ( k W ) 1 2 / 1 4 / 3 2 0 — — 9 0 0 6 0 0 3 4 8 4 0 0 3 6 0 1 3 2 7 1 6 / 1 8 Dimensions...

  • Page 18: Service Space

    Service Space Single unit installation (Wall or obstacle) Air inlet >300 Maintain channel Air inlet >600 Air outlet Parallel connect the two units or above >300 >600 >2000 Parallel connect the front with rear sides >2000 >500 >3000 >3000 >300 Service Sapce...

  • Page 19: Piping Diagrams

    Piping Diagrams Electronic Evaporator expansion valve High pressure switch Electronic expansion valve Condenser High pressure liquid accumulator can separator Oil return Capillary pressure Low pressure liquid switch accumulator can Piping Diagram...

  • Page 20: Wiring Diagrams

    5.Wiring Diagram SDV4-140EAA, SDV4-160EAA Wiring Diagram...

  • Page 21: Field Wiring

    Field Wiring Wiring Diagram...

  • Page 22: Capacity Tables

    7.Capacity Tables SDV-140EAA 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) 12.30 1.61 14.65 1.97 17.00 2.11 17.65 2.20 18.50 2.26 18.95 2.46 19.43 2.47 12.30 1.61 14.65 2.01 17.00...
  • Page 23 10.40 1.48 12.40 1.78 14.40 2.13 15.40 2.29 16.40 2.47 17.65 2.57 18.05 2.64 10.40 1.49 12.40 1.81 14.40 2.15 15.40 2.32 16.40 2.50 17.65 2.59 18.05 2.67 10.40 1.51 12.40 1.84 14.40 2.18 15.40 2.36 16.40 2.54 17.65 2.61 18.05 2.69 10.40...
  • Page 24 8.50 1.44 10.15 1.81 11.80 2.22 12.60 2.44 13.40 2.67 15.05 3.17 15.65 3.30 8.50 1.53 10.15 1.93 11.80 2.37 12.60 2.61 13.40 2.86 15.05 3.40 15.40 3.44 8.50 1.63 10.15 2.05 11.80 2.53 12.60 2.78 13.40 3.06 14.90 3.55 15.20 3.58 8.50...
  • Page 25 6.60 1.86 7.90 2.26 9.15 2.66 9.80 2.95 10.45 3.24 11.70 3.91 13.00 4.48 6.60 1.90 7.90 2.28 9.15 2.69 9.80 3.00 10.45 3.33 11.70 4.08 13.00 4.58 5.65 0.74 6.75 0.85 7.85 0.99 8.40 1.06 8.95 1.14 10.05 1.29 11.15 1.47 5.65...
  • Page 26 Heating Indoor temperature(° C WB) Outdoor Air Combinatio temperature n (%) (° C DB) (Capacity index) ° C DB ° C WB -19.8 9.97 2.94 9.92 3.14 9.88 3.36 9.88 3.46 9.83 3.56 9.83 3.77 -18.8 10.12 3.00 10.07 3.21 10.07 3.41 10.02...
  • Page 27 -13.7 10.80 4.05 10.76 4.20 10.71 4.34 10.71 4.42 10.71 4.49 10.66 4.64 -11.8 11.25 4.17 11.25 4.31 11.20 4.45 11.20 4.52 11.20 4.59 11.15 4.73 -9.8 11.78 4.28 11.73 4.42 11.73 4.55 11.73 4.62 11.68 4.68 11.68 4.81 -9.5 12.08 4.34 12.03...
  • Page 28 -8.5 -9.1 12.15 5.05 11.46 4.70 10.78 4.35 10.39 4.19 10.05 4.02 9.37 3.70 -7.6 12.15 4.82 11.46 4.49 10.78 4.17 10.39 4.01 10.05 3.85 9.37 3.54 -5.6 12.15 4.53 11.46 4.22 10.78 3.92 10.39 3.77 10.05 4.45 9.37 3.34 -3.7 12.15 4.27...
  • Page 29 SDV-160EAA 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) 13.62 1.85 16.22 2.26 18.82 2.42 19.54 2.52 20.48 2.59 20.98 2.81 21.51 2.83 13.62 1.85 16.22 2.30 18.82 2.42 19.54...
  • Page 30 11.51 1.67 13.73 2.02 15.94 2.41 17.05 2.58 18.16 2.80 19.54 2.91 19.99 2.98 11.51 1.69 13.73 2.04 15.94 2.44 17.05 2.63 18.16 2.83 19.54 2.94 19.99 3.02 11.51 1.70 13.73 2.07 15.94 2.46 17.05 2.65 18.16 2.86 19.54 2.96 19.99 3.05 11.51...
  • Page 31 9.41 1.57 11.24 1.94 13.06 2.38 13.95 2.61 14.84 2.86 16.66 3.39 17.55 3.62 9.41 1.65 11.24 2.07 13.06 2.54 13.95 2.80 14.84 3.06 16.66 3.63 17.33 3.78 9.41 1.75 11.24 2.21 13.06 2.71 13.95 2.98 14.84 3.27 16.66 3.89 17.05 3.93 9.41...
  • Page 32 7.31 2.08 8.75 2.53 10.13 2.98 10.85 3.32 11.57 3.54 12.95 4.24 14.39 4.93 7.31 2.12 8.75 2.58 10.13 3.05 10.85 3.38 11.57 3.71 12.95 4.47 14.39 5.12 7.31 2.18 8.75 2.61 10.13 3.08 10.85 3.43 11.57 3.81 12.95 4.67 14.39 5.24 6.26...
  • Page 33 Heating Indoor temperature(° C WB) Outdoor Air Combination temperature (%) (Capacity (° C DB) index) ° C ° C WB -19. 11.01 3.37 10.95 3.61 10.90 3.85 10.90 3.96 10.85 4.08 10.85 4.32 -18. 11.17 3.44 11.12 3.68 11.12 3.91 11.06 4.03 11.06...
  • Page 34 -18. 11.01 4.39 11.01 4.57 10.95 4.75 10.95 4.84 10.90 4.94 10.90 5.12 -16. 11.44 4.52 11.39 4.69 11.39 4.86 11.33 4.95 11.33 5.04 11.33 5.21 -13. 11.93 4.65 11.87 4.81 11.82 4.98 11.82 5.07 11.82 5.15 11.77 5.31 -11. 12.41 4.78 12.41...
  • Page 35 -8.5 -9.1 13.41 5.79 12.65 5.39 11.90 4.99 11.47 4.80 11.09 4.61 10.34 4.24 -7.6 13.41 5.53 12.65 5.15 11.90 4.78 11.47 4.60 11.09 4.42 10.34 4.06 -5.6 13.41 5.20 12.65 4.84 11.90 4.50 11.47 4.32 11.09 5.11 10.34 3.83 -3.7 13.41 4.89...

  • Page 37: Electric Characteristics

    Electric Characteristics Outdoor Unit Power Supply Compressor Model Voltage Min. Max. TOCA SDV-140EAA 380V~415V 342V 440V 2*0.1 2*0.9 380V~415V 440V 342V SDV - 160EAA 2*0.1 2*0.9 Remark: TOCA: Total Over- current Amps. (A) MFA: Max. Fuse Amps. (A) RLA: Rated Locked Amps. (A) OFM: Outdoor Fan Motor.

  • Page 38: Sound Levels

    Sound Levels Model Noise level dB(A) Height (m) SDV-140EAA SDV-160EAA Sound Levels...

  • Page 39: Operation Limits

    10. Operation Limits Operation Limits...

  • Page 40: Part 3 Installation

    Part 3 Installation Precautions ..................51 Accessories ..................52 Ourdoor Unit Intstallation ..............52 Piping Installation ................54 Electric Wirng Installation ..............59 Outdoor Unit Wiring ................62 Test Running ..................66 Precautions on Refrigerant Leakage ..........67 Installation...

  • Page 41: 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 42: Accessories

    Electrical work must be performed by a qualified electrician in accordance with the Installation Manual. Make sure the air conditioner uses an exclusive power supply. An insufficient power supply capacity or inappropriate installation may cause fire. Use the specified cables for wiring connect the terminals securely fix. To prevent external forces applied to the terminals from affecting the terminals.
  • Page 43 3.2 Installation space (units: mm)  Since the gravity center of the unit is not at its physical center, so please be careful when lifting it with a sling.  Never hold the inlet of the outdoor unit to prevent it from deforming. ...

  • Page 44: Piping Installation

    Outlet for power and connecting pipes Reserve water outlet (Need to knock open) Reserve water outlet Water Outlet (With rubber stopper) While installing the outdoor unit, pay attention to the installation place and the drainage pattern; if it’s installed at the alpine zone, the frozen condensed water will block up the water outlet, please pull out the rubber stopper of the reserve water outlet.
  • Page 45 The first connecting method Outdoor unit Pipe Length (IDU to the nearest branch) Maximum pipe equivalent length The first line Branch Pipe Pipe Length (from the first branch to the furthest IDU) Indoor Unit The second connecting method Outdoor unit Pipe Length (IDU to the nearest branch) Maximum pipe equivalent length Pipe Length (from the first branch...
  • Page 46 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 Main pipe first branch of indoor unit. The pipe after the first branch does not L2～...
  • Page 47 Table 2: Indoor unit main pipes selection (L1~L5) Total capacity of Main pipe size(mm) downstream indoor units Branch Pipe Air pipe Liquid pipe (kW) Φ15.9 Φ9.5 A＜16.6 SDV4-HN01 16.6≤A＜23 Φ19.1 Φ9.5 SDV4-HN01 Table 3: Main pipes selection (L1) When the equivalent length of all liquid and air When the equivalent length of all liquid and air Total capacity of pipes ≥...
  • Page 48 4.6 Vacuum Using vacuum pump to do the vacuum and never using refrigerant to expel the air. Vacuum should be done from both liquid side and gas side simultaneously. 4.7 Additional refrigerant charge Calculate the added refrigerant according to the diameter and the length of the liquid side pipe of the outdoor unit/indoor unit connection.

  • Page 49: Electric Wirng 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 50 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 51 5.5 Indoor unit power wiring selection Note: 1) Set refrigerant piping system, signal wires between indoor unit, and that between outdoor units into one system. 2) Please do not put the signal wire and power wire in the same wire tube; keep distance between the two tubes.

  • Page 52: Outdoor Unit Wiring

    6. Outdoor Unit Wiring 6.1 The Specification of Power Table 6-1 Capacity SDV4-140EAA, SDV4-160EAA 3 phase Phase Voltage and Outdoor Unit power 380-415V~ 50Hz Frequency Power Wiring(mm 5-core X2.5 Circuit Breaker/Fuse (A) Indoor unit/Outdoor unit Signal wire 3-core shielded wire (Weak electric signal) (mm 3X0.75 CAUTION...
  • Page 53 Fig.6-2 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. NOTE The air-conditioners can connect with Central Control Monitor (CCM).
  • Page 54 6.2 Indoor Unit Wiring Power Supply Table 6-2 Capacity (kW) 2.2~16 Phase 1- phase Indoor unit power Frequency and voltage 220-240V~ 50Hz Power wiring(mm 3-core×1.0 Circuit breaker (A) Indoor unit/outdoor unit signal wire (weak electric signal) (mm 3-core shielded wire 3×0.75 1.Signal wire is 3-core, polarized wire.
  • Page 55 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 56: 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 57: 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 58: Part 4 Troubleshooting

    Part 4 Troubleshooting 1. PCB ports instructions ..........69 2. PCB parts instructions ..........70 3. Error code table............. 73 4. Troubleshooting ............74 Troubleshooting...
  • Page 59 1. PCB ports instructions PCB ports instruction Content Port voltage Inspection port for inverter module voltage DC 540V,DC 15V Mutual inductor for compressor DC current In dynamic change 3CN201 Activation port of inverter module The left the first pin:DC 4CN19 Port of DC fan 1 3.3V The left the first pin:DC...
  • Page 60 26CN63 AC 220V Loading output terminal (Delay control of DC power) 27CN61 Loading output terminal(crankcase heating control) AC 220V 28CN57 Loading output terminal(solenoid valve SV6 control) AC 220V 29CN20 Program terminal connected to the computer 2. PCB parts instructions LED digital tube display SW2: Query button...
  • Page 61 Remark: Normal display: Display frequency of compressor when capacity needing. Running mode: 0──Standby; 2──COOLING; 3──HEATING; 4──FORCED COOLING. Fan speed: 0──OFF; 1~7──Speed increasing in turn. SW1: Forced cooling button. SW2: Query button. 2.3 Function setting dial switches instructions SW3 definition: Auto Addressing Dial Obtain network address automatically Obtain network address manually Resetting indoor unit network addresses...
  • Page 62 2.4 LED on PCB instructions LED 1 (Red) LED 2 (Green) LED1: Malfunction indicator lamp of inverter module. The lamp will be off if the system running is normal. And it will be on if the inverter module is faulty and the error code will display on digital tube. LED2: Running indicator lamp of inverter module.
  • Page 64 3. Error code table Error code Content Note EEPROM malfunction Communication malfunction between indoor/outdoor units Communication malfunction in outdoor PCB T3&T4 temperature sensor malfunction Outdoor unit voltage protection DC fan error Discharge Sensor Malfunction There are two times E6 fault in 10 minutes (recovery after power off) Reserved -----...
  • Page 65 4. Troubleshooting 4.1 E0: EEPROM malfunction The malfunction may be caused by two reasons: 1) The EEPROM is not inserted well; 2) Outdoor main board is broken . LED displays E0 EEPROM malfunction Check whether the EEPROM is inserted well or Insert the EEPROM well not.
  • Page 66 4.2 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 67 4.3 E3: Communication malfunction in outdoor PCB LED displays E3 Communication malfunction between outdoor PCB Check whether the indicator lights LED on Replace the outdoor main board the main board are flashing Check whether connecting wiring Insert the connecting wiring well over again between the IPM module and the CN1 on the main board is break off Disconnect the connecting wiring between the IPM...
  • Page 68 4.4 E4: T3&T4 sensor malfunction displays Judge: 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 69 4.5 E5: Voltage protection malfunction displays 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 70 4.6 E6:DC Fan Error The error may be caused by two reasons: 1). The wiring connection is wrong; 2). Power supply voltage is not normal. LED displays E6 Outdoor unit DC fan cannot work. Refers to the wiring nameplate to check Connect again.
  • Page 71 4.7 E7: Discharge Sensor Malfunction T3 pipe temperature exceeds 27 degrees for more than 5 minutes under heating mode. LED displays E7 System faulty that T3 pipe temperature exceeds 27 degrees for more than 5 minutes under heating mode. Whether the outdoor ambient temperature is higher than Belongs to system the unit’s operating condition under heating mode.
  • Page 72 4.8 P1 malfunction: High pressure protection displays 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. switch.
  • Page 73 4.9 P2: Low pressure protection displays 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 74 4.10 P3: Compressor current protection It will protect when input current is more than 15A. It will recover when input current is less than 15A. It will recover automatically. LED displays P3 Input current protection Judge 1: check whether the input current of the power wire is more than 15A.
  • Page 75 4.11 P4:Compressor discharged temperature protection 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 90° C , the unit resumes normal operation automatically. displays Discharged temperature of the compressor Check whether the discharged temperature of the compressor is higher...
  • Page 76 4.12 P5: Condenser high temperature protection When condenser temperature is higher than 62 degrees for 3 seconds, the unit will stop operating. 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 77 4.13 P6: IPM Module protection LED displays P6 IPM module protection Adjust to the right range. Then check Check whether the input power is whether the system Check whether P-N voltage on the IPM module correct. The power is 380-415V, runs normally.
  • Page 78 1.1 DC generatrix detection 1.2 Voltage check of DC generatrix 1.2.1 Check the voltage of DC generatrix, which is normal between 510V and 580V. If less , go to next step. 1.2.2 Check the rectification circuit. Find out any loose in the circuit. Moreover check the filter board, rectifier stacks.
  • Page 79 2.1 The voltage between N and P should be 1.41times to local power supply. 2.2 The voltage between 1 and 2 should range from 510V to 580V 2.3 The resistance between 1,2,3,4,5 should be infinite. If any of them is about 0, which means the module has already been broken down, we need to replace the module.
  • Page 80 3.3 Measure the current of the compressor's U,V,W terminal respectively, which should be more or less the same, by e.g. current flow table clamp.They should be 4A at the frequency of 35Hz. 4 P6 appears after the compressor turns on with difficulties 4.1 Check the module according to step 3 first.
  • Page 81 Error: Low voltage protection Here are 3 circumstances: a) The voltage between the two electrolytic capacitors is less than 450V. The AC contactor should be picked up. If not, there's something wrong with the main control board or the PTC resistors, which need to be replace correspondingly.
  • Page 82 4.14 PE malfunction: Evaporator T2 high temperature protection 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...
  • Page 83 4.15 P8: Typhoon protection displays 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. Replace outdoor PCB or transfer board of the fan.
  • Page 85 SDV4-140EAA 30 31 32 17.1 15.1 18.1 20.1 19.1 17.2 15.2 18.2 19.2 18.3...
  • Page 87 Description Part Code Note Price Code MODEL: SDV4-140EAA Outdoor unit 203395190162 Outdoor unit Electrinic control box ass'y 201395190217 Outdoor unit main control board ass'y (TNB306FPNMC) 2013199SH069 Inverter module (PS22A78) 201395190184 outdoor unit power supply board 202300850054 AC contactor 202300300109 Aluminum electroanalysis capacitor 202300500348 Three phase bridge 202300500910...
  • Page 88 SDV4-160EAA...
  • Page 90 Description Part Code Note Price Code MODEL: SDV4-160EAA Outdoor unit 203395190256 E-part box ass'y (35A) 201395190216 Outdoor main control board ass'y (LNB42FSAMC) 201319902223 Inverter module (PS22A78) 201395190184 outdoor unit power supply board 202300850054 AC contactor 202300500348 Three phase bridge 202300130008 Resistance 202300100906 Resistor...
  • Page 92 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:

Sdv4-140eaaSdv4-160eaa

Table of Contents