Haier MRV III-RC Service Manual
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Haier MRV III-RC Service Manual

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MRV III-RC (T1 208-230V)
Service Manual
SYJS-08-2016 REV.A
Edition: 2016-08

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Summary of Contents for Haier MRV III-RC

  • Page 1 MRV III-RC (T1 208-230V) Service Manual SYJS-08-2016 REV.A Edition: 2016-08...

  • Page 3: Table Of Contents

    CONTENTS 1. General Information ........................1 1.1 Feature ..........................1 1.2 Products Lineup ........................10 2. Outdoor Units ......................... 15 2.1 Specification ........................15 2.2 Dimension ........................... 37 2.3 Piping diagram ........................39 2.4 Wiring diagram ........................51 2.5 Operation range ........................53 2.6 Capacity calculation due to capacity modification coefficient ..........

  • Page 5: General Information

    1. General Information 1.1 Feature 1.1.1 Variable Operation Mode in One System Cooling & Heating Cooling only High pressure gas pipe Suction gas pipe Liquid pipe Refrigerant pipe not flow Heating Heating Heating Stop Cooling Cooling Cooling All Cooling Circuit •12/14/16HP double compressor module for example High pressure gas pipe Suction gas pipe...
  • Page 6 SYSTEM INTRODUCTION All Heating Circuit •12/14/16HP double compressor module for example High pressure gas pipe Suction gas pipe Liquid pipe Accu tank 4 way valve sep. sep. VP BOX Comp. Gas-liquid sep Comp. Cooling > Heating Circuit 12/14/16HP double compressor module for example High pressure gas pipe Suction gas pipe Liquid pipe...
  • Page 7 Cooling < Heating Circuit •12/14/16HP double compressor module for example High pressure gas pipe Suction gas pipe Liquid pipe Accu tank 4 way valve sep. sep. VP BOX Comp. Gas-liquid sep Comp. Cooling = Heating Circuit 12/14/16HP double compressor module for example High pressure gas pipe Suction gas pipe Liquid pipe...
  • Page 8 SYSTEM INTRODUCTION Light Part load Cooling Light Part Load Cooling 12/14/16HP double compressor module for example, little indoor heating, others off High pressure gas pipe Suction gas pipe Liquid pipe Accu tank 4 way valve sep. sep. VP BOX Comp. Gas-liquid sep Comp.
  • Page 9 OUTDOOR STRUCTURE USER FRIENDLY OUTDOOR STRUCTURE USER FRIENDLY OUTDOOR STRUCTURE Core Technologies and Parts Patent fan design and DC fan motor 4 way air return Air flow improved by 17.5% with patent Reduce the heat exchanger fan design height(650mm), and the upper and lower Noise reduced 3 dB(A) with DC fan motor wind speed uniform and high efficiency Double EEV design...
  • Page 10 1.1.2 High efficiency DC inverter scroll compressor, high efficiency, low noise. The highly efficient scroll compressor is equipped with a "Frame Compliance Mechanism" that allows movement in the axial direction of the frame supporting the cradle scroll. This greatly reduces both leakage and friction loss, ensuring very high efficiency throughout the speed range.
  • Page 11 1.1.4 New big diameter "aviation" fan The new fan could reduce air loss, air resistance and noise, increase heat exchange efficiency. The unit adopts the 4-way air returned heat exchanger technology. The compressor and condenser are placed in separated compartments. This structure of outdoor unit can realize lower air resistance, higher heat efficiency and lower noise level.
  • Page 12 1.1.8 Heat exchanger adopts the sub-cooling technology, to keep the refrigerant in indoor unit flowing normally, further to enhance the unit efficiency greatly. Two stage deep sub cooling technology ■ 1st stage sub cooling added a sub cooling coil to condenser ■...
  • Page 13 1.1.10 Valve pipe (VP) There are 3 models valve boxes connected between outdoor units and indoor units. The indoor unit can flexibly run cooling or heating as need by connected with the VB device. One VP device can connect with max.8 sets indoor units. However all the indoor units connected with the same VP device should run same mode.

  • Page 14: Products Lineup

    1.2 Products Lineup 1.2.1 Outdoor Units Power supply Appearance Model Capacity (kW) Refrigerant (Ph, V, Hz) AV08CMVUSA 22.4 AV10CMVUSA AV12CMVUSA 33.5 AV14CMVUSA AV16CMVUSA AV18CMVUSA 50.4 AV20CMVUSA AV22CMVUSA 61.5 AV24CMVUSA AV26CMVUSA 3Ph, 280~230V, AV28CMVUSA R410A 60HZ AV30CMVUSA AV32CMVUSA AV34CMVUSA AV36CMVUSA AV38CMVUSA AV40CMVUSA AV42CMVUSA AV44CMVUSA...
  • Page 15 1.2.2 Indoor units Lineup 4-WAY CASSETTE TYPE/PB-700lB ROUND-WAY SMART AIR FLOW CASSETTE/ PB-950KC AB092MCERA AB122MCERA AB072MRERA AB162MCERA AB092MRERA AB122MRERA AB162MRERA AB182MRERA 4-WAY CASSETTE TYPE/PB-950JB AB242MRERA AB282MRERA AB182MCERA AB242MCERA AB282MCERA AB302MRERA AB382MRERA AB302MCERA AB482MRERA AB382MCERA AB602MRERA AB482MCERA 2-WAY CASSETTE TYPE/ P1B-1055IB LOW ESP DUCT TYPE AD072MLERA AB072MBERA...
  • Page 16 HlGH ESP DUCT TYPE CONVERTlBLE TYPE AD182MHERA AC092MCERA AD242MHERA AC122MCERA AD282MHERA AC162MCERA AC182MCERA AC242MCERA AD302MHERA AD382MHERA AD482MHERA AC282MFERA AC302MFERA AC382MFERA AD722MHERA AC482MFERA AD962MHERA HIGH WALL EEV INSIDE BUILIT-IN FLOOR STANDING AS072MGERA AE072MLERA AS092MGERA AE092MLERA AS122MGERA AE122MLERA AS162MGERA AE162MLERA AS182MGERA AE182MLERA AS242MGERA AE242MLERA...
  • Page 17 1.2.3 Appendix Lineup Photo Name Model Function Application Comments Standard for high wall, Remote YR-HD Indoor unit operating console, and optional for controller cassette, convertible, duct Standard for high wall, Remote YR-H71 Indoor unit operating console, and optional for controller cassette, convertible, duct Remote Infrared signal receiver...
  • Page 18 Photo Name Model Function Application Comments Indoor unit group Touch screen control and monitoring YCZ-A004 All indoor units central controller (Max. 256 indoor units) Touch screen Connection between central controller IGU05 YCZ-A003, YCZ-A004 All indoor units gateway and outdoor unit Indoor unit group Central control and monitoring...

  • Page 19: Outdoor Units

    DMSB18P80AS3 Voltage 208-230 208-230 IP class IP23 IP23 Type Outdoor fan Insulation class Safe class motor Power input 1000 1000 Output Rated current Capacitor μF Speed Brand Haier Haier Model Material Plastic Plastic Outdoor fan Type Axial Axial Diameter Height...
  • Page 20 Model AV08CMVUSA AV10CMVUSA Number of rows Tube pitch (a)×row pitch (b) 19.05*22 19.05*22 Fin spacing 1.70 1.70 Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Fin coating type Optional Clear lacquer Clear lacquer Outdoor coil Salt spray test duration Hour INNERGROOVE TUBE INNERGROOVE TUBE Tube outside dia.and type Ф8...
  • Page 21 IP23 IP23 Type Outdoor fan Insulation class Safe class motor Power input 500*2 500*2 Output 375*2 375*2 Rated current 3.0*2 3.0*2 Capacitor μF Speed Brand Haier Haier Model Material Plastic Plastic Outdoor fan Type Axial Axial Diameter Height 190.5 190.5...
  • Page 22 Model AV12CMVUSA AV14CMVUSA Number of rows Tube pitch (a)×row pitch (b) 19.05*22 19.05*22 Fin spacing 1.70 1.70 Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Fin coating type Optional Clear lacquer Clear lacquer Outdoor coil Salt spray test duration Hour INNERGROOVE TUBE INNERGROOVE TUBE Tube outside dia.and type Ф8...
  • Page 23 Type Outdoor fan Insulation class Safe class motor Power input 500*2 1000+1000 Output 375*2 750+750 Rated current 3.0*2 4.4+4.4 Capacitor μF Speed 825+825 Brand Haier Haier Model Material Plastic Plastic Outdoor fan Type Axial Axial Diameter 642+642 Height 190.5 198+198...
  • Page 24 Model AV16CMVUSA AV18CMVUSA Number of rows Tube pitch (a)×row pitch (b) 19.05*22 19.05*22 Fin spacing 1.70 1.70 Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Fin coating type Optional Clear lacquer Clear lacquer Salt spray test duration Hour Outdoor coil INNERGROOVE TUBE INNERGROOVE TUBE Tube outside dia.and type Ф8...
  • Page 25 Outdoor fan Insulation class motor Safe class Power input 1000*2 1000+500*2 Output 750*2 750+375*2 Rated current 4.4*2 4.4+3.0*2 Capacitor μF Speed 825*2 825+960 Brand Haier Haier Model Material Plastic Plastic Outdoor fan Type Axial Axial Diameter 642*2 642+540 Height 198*2 198+190.5...
  • Page 26 Model AV20CMVUSA AV22CMVUSA Number of rows Tube pitch (a)×row pitch (b) 19.05*22 19.05*22 Fin spacing 1.70 1.70 Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Fin coating type Optional Clear lacquer Clear lacquer Outdoor coil Salt spray test duration Hour INNERGROOVE TUBE Tube outside dia.and type Ф8 Ф8...
  • Page 27 Outdoor fan Insulation class Safe class motor Power input 1000+500*2 1000+500*2 Output 750+375*2 750+375*2 Rated current 4.4+3.0*2 4.4+3.0*2 Capacitor μF Speed 825+960 825+960 Brand Haier Haier Model Material Plastic Plastic Outdoor fan Type Axial Axial Diameter 642+540 642+540 Height 198+190.5 198+190.5...
  • Page 28 Model AV24CMVUSA AV26CMVUSA Number of rows Tube pitch (a)×row pitch (b) 19.05*22 19.05*22 Fin spacing 1.70 1.70 Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Fin coating type Optional Clear lacquer Clear lacquer Outdoor coil Salt spray test duration Hour INNERGROOVE TUBE INNERGROOVE TUBE Tube outside dia.and type Ф8...
  • Page 29 Outdoor fan Insulation class Safe class motor Power input 500*2+500*2 500*2+500*2 Output 375*2+375*2 375*2+375*2 Rated current 3.0*2+3.0*2 3.0*2+3.0*2 Capacitor μF Speed 960+960 960+960 Brand Haier Haier Model Material Plastic Plastic Outdoor fan Type Axial Axial Diameter 540+540 540+540 Height 190.5+190.5 190.5+190.5...
  • Page 30 Model AV28CMVUSA AV30CMVUSA Number of rows Tube pitch (a)×row pitch (b) 19.05*22 19.05*22 Fin spacing 1.70 1.70 Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Fin coating type Optional Clear lacquer Clear lacquer Outdoor coil Salt spray test duration Hour INNERGROOVE TUBE INNERGROOVE TUBE Tube outside dia.and type Ф8...
  • Page 31 Outdoor fan Insulation class motor Safe class Power input (500*2)*2 1000*2+500*2 Output (375*2)*2 750*2+375*2 Rated current (3.0*2)*2 4.4*2+3.0*2 Capacitor μF Speed 960*2 825*2+960 Brand Haier Haier Model Material Plastic Plastic Outdoor fan Type Axial Axial Diameter 540*2 642*2+540 Height 190.5*2 198*2+190.5...
  • Page 32 Model AV32CMVUSA AV34CMVUSA Number of rows 2*2+3 Tube pitch (a)×row pitch (b) 19.05*22 19.05*22 Fin spacing 1.70 1.70 Fin type (code) Hydrophilic aluminum Fin coating type Optional Clear lacquer Clear lacquer Outdoor coil Salt spray test duration Hour INNERGROOVE TUBE Tube outside dia.and type Ф8 Ф8...
  • Page 33 Outdoor fan Insulation class motor Safe class Power input 1000*2+500*2 1000+500*2+500*2 Output 750*2+375*2 750+375*2+375*2 Rated current 4.4*2+3.0*2 4.4+3.0*2+3.0*2 Capacitor μF Speed 825*2+960 825+960+960 Brand Haier Haier Model Material Plastic Plastic Outdoor fan Type Axial Axial Diameter 642*2+540 642+540+540 Height 198*2+190.5 198+190.5+190.5...
  • Page 34 Model AV36CMVUSA AV38CMVUSA Number of rows 2*2+3 2+3+3 Tube pitch (a)×row pitch (b) 19.05*22 19.05*22 Fin spacing 1.70 1.70 Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Fin coating type Optional Clear lacquer Clear lacquer Salt spray test duration Hour Outdoor coil INNERGROOVE TUBE INNERGROOVE TUBE Tube outside dia.and type...
  • Page 35 Outdoor fan Insulation class motor Safe class Power input 1000+500*2+500*2 1000+(500*2)*2 Output 750+375*2+375*2 750+(375*2)*2 Rated current 4.4+3.0*2+3.0*2 4.4+(3.0*2)*2 Capacitor μF Speed 825+960+960 825+960*2 Brand Haier Haier Model Material Plastic Plastic Outdoor fan Type Axial Axial Diameter 642+540+540 642+540*2 Height 198+190.5+190.5 198+190.5*2...
  • Page 36 Model AV40CMVUSA AV42CMVUSA Number of rows 2+3+3 2+3*2 Tube pitch (a)×row pitch (b) 19.05*22 19.05*22 Fin spacing 1.70 1.70 Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Fin coating type Optional Clear lacquer Clear lacquer Salt spray test duration Hour Outdoor coil INNERGROOVE TUBE INNERGROOVE TUBE Tube outside dia.and type...
  • Page 37 Outdoor fan Insulation class Safe class motor Power input 500*2+(500*2)*2 500*2+(500*2)*2 Output 375*2+(375*2)*2 375*2+(375*2)*2 Rated current 3.0*2+(3.0*2)*2 3.0*2+(3.0*2)*2 Capacitor μF Speed 960+960*2 960+960*2 Brand Haier Haier Model Material Plastic Plastic Outdoor fan Type Axial Axial Diameter 540+540*2 540+540*2 Height 190.5+190.5*2 190.5+190.5*2...
  • Page 38 Model AV44CMVUSA AV46CMVUSA Number of rows 3+3*2 3+3*2 Tube pitch (a)×row pitch (b) 19.05*22 19.05*22 Fin spacing 1.70 1.70 Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Fin coating type Optional Clear lacquer Clear lacquer Outdoor coil Salt spray test duration Hour INNERGROOVE TUBE INNERGROOVE TUBE...
  • Page 39 Model (DMUB04JB01AS)*3 Voltage 208-230 IP class IP23 Type Outdoor fan Insulation class Safe class motor Power input (500*2)*3 Output (375*2)*3 Rated current (3.0*2)*3 Capacitor μF Speed 960*3 Brand Haier Model Material Plastic Outdoor fan Type Axial Diameter 540*3 Height 190.5*3...
  • Page 40 Model AV48CMVUSA Number of rows Tube pitch (a)×row pitch (b) 19.05*22 Fin spacing 1.70 Fin type (code) Hydrophilic aluminum Fin coating type Optional Clear lacquer Outdoor coil Salt spray test duration Hour INNERGROOVE TUBE Tube outside dia.and type Ф8 Coil length×height (1760×660)*2*3 Number of circuits 16*3...

  • Page 41: Dimension

    2.2 Dimension 8HP/10HP ④ ⑤ ③ ① ② ④ ④ Code Name Hoilsting hole Siggnal line entrance Power line entrance Refrigerant pipe exit Drain pipe exit...
  • Page 42 12HP/14HP/16HP ④ ⑤ ② ④ ① ④ 1390 Code Name Hoilsting hole Siggnal line entrance Power line entrance Refrigerant pipe exit Drain pipe exit 1330...

  • Page 43: Piping Diagram

    2.3 Piping diagram 8HP/10HP...
  • Page 44 12HP/14HP/16HP...
  • Page 45 High temp. and high pressure gas Low temp. and low pressure gas High temp. and high pressure liquid...
  • Page 53 Part name Function Data Sign Remark ANB52: 0.1Ω Capacity control, meet indoor load request by adjusting Compressor 20°C the frequency. AN66: 0.55Ω Pressure HPSi/1 Inverter/ON-OFF high pressure protection control 4.15Mpa, OFF Switch In heating, compressor frequency adjustment, abnormal NSK-BD042I-224 pressure protection. Pressure Sensor In cooling, compressor frequency adjustment abnormal...
  • Page 54 Part name Sign Function Data Remark Opened when the Unloading Avoid the oil equalization circuit being blocked by liquid circuit’s pressure is Valve seal. over 4.1MPa Detect the refrigerant oil temp. at compressor’s bottom to Toili judge whether the units operation, oil temp. and oil temp. over-heating degree meet the standard or not.

  • Page 55: Wiring Diagram

    2.4 Wiring diagram 8HP/10HP Reactifier...
  • Page 56 12HP/14HP/16HP Reactifier...

  • Page 57: Operation Range

    2.5 Operation range Cooling Heating 15.5 Indoor air DB (°C) Indoor air DB (°C) Cooling & Heating Indoor air DB (°C)

  • Page 58: Capacity Calculation Due To Capacity Modification Coefficient

    2.6 Capacity calculation due to capacity modification coefficient (1) Calculation method of cooling capacity---Refrigerating capacity to be known =Refrigerating capacity x (A x B x C x D x E) W...
  • Page 59 HP pipe: φ19.05 HP pipe: φ22.22 AV10*MVUSA AV08*MVUSA quid pipe liquid pipe gas pipe pipe 1.00 1.00 0.95 0.95 HP pipe: φ19.05 HP pipe: φ19.05 0.90 0.90 liquid pipe liquid pipe gas pipe gas pipe 0.85 0.85 0.80 0.80 0 20 40 60 80 100 120 140 160 180 0 20 40 60 80 100 120 140 160 180 pipe length of single way ( m ) pipe length of single way ( m )
  • Page 60 AV2 *MUSA *MUSA HP pipe: φ34.9 1.0 0 1.0 0 :φ22.22 : φ 38. 1 0.9 5 0.9 5 0.9 0 0.9 0 HP pipe: φ28.58 HP pipe: φ28.58 HP pipe: φ34.9 : φ 19.0 5 : φ 19.0 5 0.8 5 0.8 5 :φ22.22...
  • Page 61 (2) Calculation method of heating capacity---Heating capacity to be known =Heating capacity x (A x B x C x D x E) W (3) Calculation method of refrigerating capacity---Only one indoor unit running...

  • Page 62: Sound Pressure Level

    2.7 Sound pressure level (1) Testing illustration (2) Testing condition: a. Unit running in the nominal condition b. Test in the semi-anechoic chamber c. Noise level varies from the actual factors such as room structure, etc (3) Noise level dB (A): Outdoor unit group Air speed 08-10HP 12-20HP 22-26HP 28-32HP 34-42HP 44-48HP...

  • Page 63: Outdoor Installation

    2.8 Outdoor installation Operation condition: To use the air conditioner normally, please perform as to the below conditions. Operating Range of Air Conditioner Max. DB:32°C WB:23°C Indoor Min. DB:18°C WB:14°C Cooling Max. DB:43°C Outdoor Min. DB:-5°C Max. DB:27°C Indoor Min. DB:15°C Heating Max.
  • Page 64 ■ This air condition equipment is not intended to be operated by persons with lack of experience and training, unless they have supervision or instruction concerning use of this air condition equipment. ■ Please keep children away from this air condition equipment. ■...
  • Page 65 2.8.2 Installation instruction For installation, please review the items below: ■ Is the connected units quantity and the total capacity in the allowable range? ■ Is the refrigerant pipe length in the limited range? ■ Is the pipe size proper? And if the pipe is installed horizontally? ■...
  • Page 66 (2) Installation place selection Air-conditioner can't be The unit should be installed The unit should be installed at installed in the place with at the place with good the strong enough place. Or it will inflammable gas. Or it will ventilation.
  • Page 67 2.8.3 Exterior and installation dimensions 1. 8~10HP exterior and installation dimensions Over Over 100 Front Foundation bolt 2. 12~16HP exterior and installation dimensions Over Over 100 Front 1390 1200 Foundation bolt Note: The distance between two outdoor units in the same line and the distance from unit to the wall can be increased for easy maintenance and better heat exchange if there is enough space.
  • Page 68 3. Combination installation dimensions (1) When outer wall is lower than the outdoor condenser A. Sites for one-row layout Front side Over 100mm Over 200mm Over 200mm B. Sites for two-row layout Front side Front side Over Over Over 100mm 200mm 200mm C.
  • Page 69 (2) Wall higher than the outdoor condenser A. Place with air inlet hole Notes: Air outlet a. Fan speed Vs at air inlet is 1.5m/s or below. b. Air outlet height HD=H-h and below 1m. Front side Over Over Over 100mm 200mm 200mm...
  • Page 70 19.05 is O-type, the pressure preservation will be bad, thus it must be 1/2H type and over the min. thickness. 3. The branch pipe and the gather pipe must be from Haier. 4. When installing the stop valve, refer to the relative operation instruction.
  • Page 71 Pipe specification: Outdoor 1 Outdoor 2 Outdoor 3 Outdoor gather pipe The first branch pipe Indoor 1 Indoor 2 Indoor 3 Indoor 4 Indoor 5 Indoor 6 Indoor 7 1. Pipe a (indoor-branch pipe or indoor-valve box) diameter: decided by connected indoor capacity Indoor rated capacity Gas pipe Liquid pipe Note...
  • Page 72 2. Pipe b (between branch pipes or branch pipe → valve box) diameter (2-pipe part) Total capacity of Gas pipe Liquid connected indoors pipe x<16.8kw 15.88 9.52 (1) Select in accordance with total capacity connected 16.8kw≤x<22.4kw 19.05 9.52 (2) Pipe b diameter should not be bigger than main pipe e If pipe b diameter is larger than main pipe e, please correct diameter 22.4kw≤x<33kw 22.22...
  • Page 73 6. Pipe f (between gather pipes) diameter: Total horse power of Gas pipe HP gas pipe Liquid pipe connected outdoors 19.05 19.05 9.52 10HP 22.22 19.05 9.52 12-14HP 25.4 22.22 12.7 16HP 28.58 25.4 12.7 18-24HP 28.58 25.4 15.88 26-34HP 31.8 28.58 19.05...
  • Page 74 2. Pipe length between outdoors Outdoor 1 Outdoor 2 Outdoor 3 Gas/Liquid pipe: L1+L3 10m, L2+L3 10m 2st gather pipe 1st gather pipe Oil equalization pipe: L5+L6 10m Height difference between outdoors: h 5m Note: a. HZG-R30A includes HZG-R20A; b. The connection pipe among outdoors can not be higher than the stop valve position; c.
  • Page 75 Piping installation with positive slope is not allowed Outdoor 1 Outdoor 3 Outdoor 2 d. For installations with outdoors at different heights, please follow either of the lay out below: Outdoor 1 Outdoor 2 Outdoor 3 Outdoor 2 Outdoor 3 Outdoor 1...
  • Page 76 When changing the height of the pipe and connecting different outdoors at different heights, please do as the figure shows: Oil trap (upright projecting pipe, 200mm high), for maximum outdoor unit height difference, Outdoor 3 Outdoor 2 please refer to Page 17 Outdoor 1 Installation below is not allowed Outdoor 2...
  • Page 77 The outdoor is more than one unit When the distance between outdoors (L1, L3) is over 2m, the oil trap must be set Outdoor 1 (upright projecting pipe, 200mm high), as the figure: Outdoor 2 Outdoor 3 Below 2m Below 2m Over 200mm Over 200mm L3<10m...
  • Page 78 4. Example of connection Outdoor unit side (3 pipes) Indoor unit side (2 pipes) HP gas Pipe (Ø12.7) Gas Pipe (Ø15.88) 112A Suction gas Pipe (Ø15.88) Liquid gas Pipe (Ø9.52) Liquid gas Pipe (Ø9.52) Outdoor unit side (3 pipes) Indoor unit side (2 pipes) HP gas Pipe (Ø15.88) Gas Pipe (Ø15.88) 180A...
  • Page 79 Unit pipe spec and connection method (unit: mm) A. Outdoor unit Suction gas pipe side Liquid pipe side Model Diameter (mm) Connecting method Diameter (mm) Connecting method AV08CMVUSA Ø19.05 Flared Ø9.52 AV10CMVUSA Ø22.22 Ø9.52 AV12CMVUSA Ø25.4 Ø12.7 Flared Braze AV14CMVUSA Ø25.4 Ø12.7 AV16CMVUSA...
  • Page 80 C. Pipe spec and the torque Torque (N . m) Diameter (mm) Ø6.35 16~20 Ø9.52 40~50 Ø12.7 40~50 Ø15.88 90~120 Ø19.05 100~140 Not less than Ø22.22 No requirement, due to braze connector Branch pipe Branch pipe selection: Model (optional) Total indoor capacity (100W) 3 pipes 2 Pipes X <...
  • Page 81 Note: 1. When connecting the outdoor branch pipe and the outdoor, please pay attention to the outdoor pipe dimension. 2. When adjusting the diameter among outdoor branch pipe and among the units, please do execute at the branch pipe side. 3.
  • Page 82 Operation procedure ■ Braze the pipe and charge the nitrogen at the same time. Or it will cause a number of impurities (a film of oxidation) to clog the capillary and the expansion valve, further cause the deadly failure. Seal the pipe end with adhesive tape or the stopper to increase the resistance, fill up the pipe with nitrogen.
  • Page 83 C. Evacuation Evacute at the check valve of liquid stop valve and both sides of the gas stop valve. The oil equalization pipe also must be vacuum (executed at the oil equalization pipe and check valve respectively). Operation procedure: Leave it for over 1 After reaching -101KPa or hour, vacuum pointer less (below -755mmHg), let...
  • Page 84 L1: Total length of 22.22 liquid pipe; L2: Total length of 19.05 liquid pipe; L3: Total length of 15.88 liquid pipe; L4: Total length of 12.7 liquid pipe; L5: Total length of 9.52 liquid pipe; L6: Total length of 6.35 liquid pipe; Total refrigerant volume charging on site during installation=W2+W3 W: Total refrigerant volume charging on site for maintenance.
  • Page 85 Communication wiring figure Outdoor 1 Outdoor 2 Outdoor 3 P Q A B C A B C A B C Control wire for wired controller with polarity VP 1 VP 2 VP 3 Communication wire with polarity P Q B C P Q B C P Q B C Indoor 1...
  • Page 86 Power wiring figure Please make sure that when the unit is running, the input voltage is no less than 208V; if it is lower than 208V,the unit may run abnormal. power source: 3N~,208-230V,60Hz power source: 3N~,208-230V,60Hz power source: 3N~,208-230V,60Hz power source: 1PH, 208-230V~, 60Hz power source: 1PH, 208-230V~, 60Hz power source: 1PH, 208-230V~, 60Hz ■...
  • Page 87 Outdoor power source and power cable Item Ground wire Power Rated current of residual Wire Circuit Power cable circuit breaker(A) length breaker Section source section Ground fault interruptor(mA) Screw response time(S) Model AV08CMVUSA 50A 30mA below 0.1S 3N~, AV10CMVUSA 63A 30mA below 0.1S 208- AV12CMVUSA 230V,...

  • Page 88: Branch Pipe Dimensions

    2.9 Branch pipe dimensions 3-pipe systerm FQG-R335A FQG-R506A FQG-R730A FQG-R1350A Unit: mm, ID: inner diameter, OD: outer diameter Note: Cut off the pipe from its middle when using. Liquid Suction gas branch pipe HP gas branch pipe Liquid branch pipe Suction gas manifold pipe HP gas manifold pipe manifold pipe...
  • Page 89 2-pipe systerm liquid side gas side connection of connection of gas side pipe liquid side pipe manifold pipe manifold pipe FQG-B335A Φ9.53 Ø19.05 ID9.7 ID16.1 ID6.5 ID12.9 FQG-B506A Φ9.53 Ø22.22 ID13 ID22.4 ID9.7 ID19.3 ID6.5 ID16.1 ID12.9 Ø55 FQG-B730A Ø22.22 Φ19.05 ID22.4 ID16.1...

  • Page 90: Gather Pipe Dimension

    2.10 Gather pipe dimension Gather pipe is used for combination of outdoor unit. HZG-R20A (for 2 basic modules), HZG-R30A (for 3 basic modules) Note: Cut off the pipe from its middle when using. Unit: mm, ID: inner diameter, OD: outer diameter Model Side Mark...

  • Page 91: Trial Operation

    2.11 Trial operation 1. Confirmation by electrifying Before the outdoor unit is powered on for the first time, the first and second bit (BM1-1, BM1-2) of dip switch code BM1 of the outdoor unit PCB board should be turned to OFF. Power supply for outdoor, indoor units and valve box should be checked according to the table below.
  • Page 92 3. Trial operation confirmation The test run confirmation, in principle, shows that all the indoor units should be confirmed one by one. The improper connection of refrigeration pipe and control wire cannot be confirmed when all the indoor units are running simultaneously.
  • Page 93 PCB board of indoor unit is in bad condition; Wires around the PCB board of indoor unit are broken and the insertion of socket is poor. Whether Whether there Whether Whether the fan there is AC15V is AC15V voltage another indoor is rotating in air supply voltage between between terminal B and...
  • Page 94 B. Air blower operation confirmation Start Set the operation to air supply mode, and press the operation switch. Whether there is air Check the indoor unit fan, sent out of the outlet of fan motor and air blower indoor unit circuit Whether there is Check the surrounding...
  • Page 95 C. Cooling operation confirmation Start Set the operation to cooling mode and hold Once stop, the outdoor down the operation switch for more than 5 unit can’t restart until 3 seconds in shutdown mode. to 5 minutes later. operation condition of the Whether the cold air is blown out compressor Whether air circulation is in good...
  • Page 96 D. Heating operation confirmation Start Set the operation to heating mode and hold Once stop, the outdoor down the operation switch for more than 5 unit can't restart until 3 seconds in shutdown mode. to 5 minutes later. operation condition of the Whether the warm air is blown out compressor Whether the air circulation is in...
  • Page 97 E. Outdoor cooling operation confirmation Outdoor cooling operation Do the indicator lights of indoor, outdoor and valve box blink, or do they stop blinking or not blink; the master unit confirms if the number of indoor unit and valve box is correct through dip switch and checking software;...
  • Page 98 F. Outdoor heating operation confirmation Outdoor heating operation Do the indicator lights of indoor, outdoor and valve box blink, or do they stop blinking or not blink; the master unit confirms if the number of indoor unit and valve box is correct through dip switch and checking software;...
  • Page 99 Cooling High pressure 2.0~3.8 MPa Indoor 18-32°C Low pressure 0.6~1.0 MPa (at the maximum frequency) Outdoor 25-35°C Heating High pressure 2.2~3.0 MPa Indoor 15-25°C Low pressure 0.3~0.8 MPa (at the maximum frequency) Outdoor 5-10°C Values after 15-minute operation (the temperature therein refers to dry bulb temperature with unit of °C) The transformation trend of high pressure and low pressure due to change of operation condition Refrigeration/ heating: indoor temperature rises –...
  • Page 100 The confirmation of running data/Timing and recording of the measurement After the measurement is begun, check the system pressure through detection software. Generally, the cooling low pressure is about 7.5kg and the heating high pressure is about 28kg under rated cooling and heating modes.

  • Page 101: Valve Pipe Box

    3. Valve Pipe Box 3.1 Specification Model VP1-112A VP1-180A VP1-280A Power Supply Ph-V-Hz 1Ph/220~230V/50~60Hz Capacity Total Capacity Index of Indoor Units ≤11.2 > 11.2 & ≤ 18.0 >18.0 & ≤28.0 Number of Connectable Indoor Units Max.5 Max.8 Max.8 Piping Connection Liquid pipe - Connect to indoor unit Φ9.52 Φ9.52...

  • Page 102: Dimension

    3.2 Dimension...

  • Page 103: Wiring Diagram

    3.3 Wiring diagram LED3 SW03 LED2 LED1 220V_L 220V_N C N 3 C N 5 C N 4 Qo Po Qi Pi SVB3 SVB2 SVB1 4WVBS Terminal Block Terminal Block for for Power Communication Connect Connect Notice: To power supply outdoor indoor The colours use these letters for short...

  • Page 104: Valve Box Installation

    3.4 Valve box installation 3.4.1 Parts and Functions Outdoor unit side (3 pipes) Indoor unit side (2 pipes) Gas Pipe (Ø15.88) HP gas Pipe (Ø12.7) Liquid gas Pipe (Ø9.52) 112A Suction gas Pipe (Ø15.88) Liquid gas Pipe (Ø9.52) Outdoor unit side (3 pipes) Indoor unit side (2 pipes) Gas Pipe (Ø15.88) HP gas Pipe (Ø15.88)
  • Page 105 3.4.2 Safety ■ If the valve box is transferred to a new user, this manual shall be transferred to the user, together with the conditioner. ■ Before installation, be sure to read Safety Considerations in this manual for proper installation. ■...
  • Page 106 ■ During the process of grounding, the ground wire cannot be connected to the gas pipe, water pipe, lightning rod and ground wire of the telephone. Incomplete grounding may cause electric shock, fires, etc. ■ Install residual-current circuit breaker, or electric shock, fires, etc. will occur. ■...
  • Page 107 3.4.3 Installation instruction Do not install at such places 1. A place that is filled with mineral oil, a kitchen which has oil and steam everywhere, etc., which may cause degradation, falling off and water leakage of the resinous components. 2.
  • Page 108 280A Auxiliary pipe Wiring harness Insulation tube Specification Quantity Shape Ø22.22 Ø22.22 Ø19.05 <Entrustment> Before the installation is completed, do not abandon the accessories needed in installation. Combinations ■ This series is cooling and heating heat recovery models. Only when the system is equipped with valve box, indoor units under different valve boxes can achieve cooling and heating simultaneously.
  • Page 109 Inspection item Pay much attention to the following during installation. Check them again after completion. (1) Inspection items after installation Inspection item Defect Inspection column If the installation of valve box is secure ? Falling off, vibration and noise If gas leakage inspection is completed ? No heating/cooling If complete insulation is achieved (refrigerant piping Water leakage...
  • Page 110 <Notice item> ■ Inspect whether the installation location can sufficiently withstand the weight of valve box and set the hoisting bolts by reinforcing the beam if necessary. Use hoisting bolts in installation (referring to 2 for the preparation before installation). ■...
  • Page 111 (2) Lifting dimension of valve box Fig.1 Pitch of lifting bolts Foundation bolt Thick cement plate Long nuts or turnbuckle Lifting tools Lifting bolt Valve box Note: All the parts in the Less than 1m Less than 1m figure are purchased locally. Fig.2 3.
  • Page 112 Rotate 180° Top board E l e c t r i c a l appliance box The cover of electrical appliance box Electrical appliance removal Fig.1 Install the lifting tools on the lifting bolts according to the instruction of the Fig.2 Be sure to follow the stipulations on products locally purchased to use nuts (M8 or M10 of 3 pieces for 4 positions) and gaskets (M8 with the outer diameter of 24~28 mm and M10 with that of 30~34 mm of 2 pieces for 4 positions) on the upper and lower sides of the lifting tools.
  • Page 113 4. Refrigerant pipe Installation ■ Pipes between the outdoor unit and valve box, selection of refrigerant branching suite, and the Pipe between refrigerant branching suites and the indoor units, please refer to the installation instructions or equipment design data attached to the outdoor unit. ■...
  • Page 114 Select piping material ■ Make sure both the internal surface and external surface of the pipes are intact and are free from harmful contaminants such as sulphur, oxide, foreign matter, cutting powder, grease and water. ■ Please use the following materials for refrigerant pipe. Pipe material Phosphorized copper seamless pipe for air conditioner (TP2) Model...
  • Page 115 <Table-1> Tube size Tightening torque (N.m) Machined flare size A (mm) Flare shape Ø6.35 14.2~17.2 8.7~9.1 Ø9.52 32.7~39.9 12.8~13.2 Ø12.7 49.5~60.3 16.2~16.6 Ø15.88 61.8~75.4 19.3~19.7 Ø19.05 97.2~118.8 23.7—23.9 Ø22.22 117.2~138.8 28.2-28.5 <Table-2> Pipe size Tightening angle Recommended tool length (mm) Ø6.35 60°~90°...
  • Page 116 Selection of piping dimensions Select refrigerant branching dimensions between outdoor units and valve box, between valve box and indoor units according to the following connection examples 1 and 2 and Tables 1-3. Connection example 1: Connect an indoor unit to the downstream of the valve box Select from Table 1 according to Select from Table 2 according to the total capacities of the indoor units...
  • Page 117 <Table 2> Dimensions (mm) of connection tube of the indoor units Pipe dimensions (OD × minimum wall thickness) Total capacity type of the indoor units (×100W) Gas pipe Liquid pipe 22, 28 Ø9.52×0.8 Ø6.35×0.8 36, 45, 56 Ø12.7×0.8 Ø6.35×0.8 71, 80, 90, 112, 140 Ø15.88×1.0 Ø25.4×1.2 Ø9.52×0.8...
  • Page 118 Note Flare nut (*2) HP gas pipe (*1) Valve box Suction gas pipe (*1) Gas pipe (*1) (Top side) Liquid pipe (*1) Liquid pipe (*1) Flare nut (*2) Flare nut Flare nut Auxiliary pipe -2 Auxiliary pipe -3 (*2) (*2) Valve box Valve box Gas pipe (*1)
  • Page 119 The total capacity of the indoor units in the downstream is more than 16.8 KW but less than 18.0 kW. Auxiliary pipe -2 Flare nut (*2) Auxiliary pipe -2 HP gas pipe (*1) Valve box (Top side) Suction gas pipe (*1) Gas pipe (*1) Liquid pipe (*1) Liquid pipe (*1)
  • Page 120 The total capacity of the indoor unit in the downstream is more than 22.4kW but less than 28.0 kW. Auxiliary pipe -2 Flare nut (*2) Auxiliary pipe -2 HP gas pipe (*1) Valve box (Top side) Suction gas pipe (*1) Gas pipe (*1) Liquid pipe (*1) Liquid pipe (*1)
  • Page 121 3.4.5 Electrical wiring WARNING ■ Electrical construction should be made with specific mains circuit by the qualified personnel according to the installation instruction. Electric shock and fire may be caused if the capacity of power supply is not sufficient. ■ During arranging the wiring layout, specified cables should be used as the mains line, which accords with the local regulations on wiring.
  • Page 122 The wiring for the power line and signal line of valve box The wiring for the power line of valve box, the wiring for the signal line between valve boxes and outdoor units as well as the wiring between valve boxes. Items Cross Sectional Area of Rated...
  • Page 123 (3) Two-core nonpolar communication line with shield shall be adopted for communication lines between the valve box and the indoor/outdoor unit. Three-core polar communication line with distinguished polarities and shield shall be adopted for the wire controller connected to the indoor unit. (4) All valve boxes within one system may share one overcurrent breaker for power supply.

  • Page 124: Outdoor Unit Electric Control

    4. Outdoor Unit Electric Control 4.1 PCB photo and dip switch setting Outdoor unit PCB (015100084A) photo...
  • Page 125 Valve box PCB(0151800186) photo...
  • Page 126 Outdoor unit dip switch setting ■ ldentification: Physical master unit: by setting dip switch, the unit number is 0. lt is used to communicate with indoor unit, also it is the organizer of outdoor communications as communication master unit. Physical slave unit: by setting dip switch, the unit number is not 0. Functional master unit: the most preferred running outdoor unit, priority is 0.
  • Page 127 1) BM1 instruction Definition Instruction Begin to search outdoor Outdoor searching BM1_1 After startup Stop searching outdoor and lock the quantity Begin to search indoor and VB device Indoor searching BM1_2 After startup Stop searching indoor and VB device and lock the quantity Default: unit shall startup after 6 hours preheat or oil temp.
  • Page 128 2) BM2 instruction Definition Instruction Group class Quiet running function is unavailable (default) Quiet running BM2_1 (physical master function Quiet running function is available unit is valid) Group class Anti-snow function is unavailable (default) BM2_2 Anti-snow function (physical master Anti-snow function is available unit is valid) BM2_3 BM2_4...
  • Page 129 Single fan motor (750W) BM5_5 BM5_5 BM5_6 BM5_7 BM5_8 Selection item Inverter board selection Default (Haier module) BM5_8 Valve box dip switch setting SW03 is used for VB address setting. SW03 Definition Instruction OFF Set the address automatically (default) SW03_1 Address setting method...
  • Page 130 ■ Monitor tooIs Monitor code is as following: Press button: SW2(UP), SW1(DOWN) are the button switch Rotary switch: SW9, SW10, SW11 are settable from 0 to 15. ( Note: on code wheel with letters, A for 10, B for 11, C for 12, D for 13, E for 14, F for 15) Display part: LED1, LED2, LED3, LED4, 4 digital tubes are ranked from left to right.
  • Page 131 2) Valve box parameters observation The parameters of indoor unit address 1-64 can be observed: SW9 and SW10 are valve box numbers; the range of SW11 is 3-14, regarding observed valve box parameters. SW10 System address Unit 1-16 (valve box PCB address dial-up 0#-15#) Unit 17-32 (valve box PCB address dial-up 16#-31#) 0-15 Unit 33-48 (valve box PCB address dial-up 32#-47#)

  • Page 132: Outdoor Unit Parameters Observation

    4.2 Outdoor unit parameters observation 0~3 of SW9 is used to select outdoor unit number, selecting the numbers of different outdoor units. The range of SW11 is 0, 1, 15, meaning observed outdoor units parameters. (The master unit can show the parameters of other outdoor units and indoor units. The slave unit can only show its own parameters, 0 for SW9.) Note: When the master unit SW9/SW10/SW11 are 0/0/0,...
  • Page 133 SW10 SW11 Function Display with digital tube LED1~4 345 means 345rpm. Press SW2(UP) for 2 seconds, showing 1111, then enter the Speed of outdoor fan settable condition. Sparklingly display: Speed grade will go up a motor 1 level each time pressing SW2(UP); speed grade will go down a level each time pressing SW1(DOWN).
  • Page 134 SW10 SW11 Function Display with digital tube LED1~4 Pd pressure Unit: kg, 2 decimal Ps pressure Tdi discharging temp. Td1 discharging temp. Td2 discharging temp. Tdef1 defrosting temp. Tdef2 defrosting temp. Unit No. Toil temp. Tao ambient temp. Unit: °C Toci1 temp.
  • Page 135 SW10 SW11 Function Operational approach LED1/ LED2: Quantity of cooling indoor unit temp. sensor ON Quantity and capacity LED3/ LED4: Capacity of cooling indoor unit temp. sensor ON of cooling indoor unit (Unit: HP) temp. sensor ON For example, 0312 means there are 3 cooling indoor units temp.
  • Page 136 SW10 SW11 Function Operational approach Hex display. BM1: Use LED1and LED2to display， BM1and BM2 setting condition BM2: Use LED3and LED4 to display Hex display. BM3: Use LED1and LED2to display， BM3and BM4 setting condition BM4: Use LED3and LED4 to display 0 means short piping length; 1 means medium Capacity correction class piping length, 2 means long piping length.
  • Page 137 5) Control of valve component of outdoor unit (Local) SW10 SW11 Function Operational approach Press SW2(UP) for 2 seconds, showing 1111, cancel; or press SW1(DOWN)for 2 seconds, showing 0000, cancel. Cancel content: The manual control of all the moving components Cancel all manual control of the outdoor unit, such as compressor, fan, (for component)
  • Page 138 7) Examination of local EE data: SW9 SW10 SW11 Function Display with digital tube LED1~4 The EE data of address 000H (Version E2) The EE data of address 001H The first 256 bytes data display of local EE … … …...

  • Page 139: Outdoor Unit Control

    4.3 Outdoor unit control 4.3.1 Compressor startup control On startup, inverter compressor will keep for 3 min at 50rps(Tao≥0°C) or 60rps(Tao<0°C), then if Tdi SH is still less than 25°C, compressor will increase frequency up to 100rps. If startup is for 15min or TdiSH is more than 25°C, quit startup and enter normal operation.
  • Page 140 4.3.4 Defrosting control When one of the running outdoors reaches the defrosting condition, it will send defrosting signal to the master unit. After the master unit receives defrosting signal, it will send defrosting signal to the running outdoor. Then the slave outdoor will begin defrosting.
  • Page 141 4.3.6 Valve box control During starting up, when indoor units are in cooling mode, all the 4WVs in the valve box are OFF. When indoor units are in heating mode, if Pd-Ps≥0.6MPa, all the 4WVs in the valve box are ON. During operation, when indoor units are in cooling mode, all the 4WVs in the valve box are OFF.

  • Page 142: Maintenance

    5. Maintenance 5.1 Failure code Failure code description: (failure code of the whole system is showed as 8 bits, so totally 256 codes. Indoor failure code should be judged by the table and the unit number) Outdoor failure code exists in EEPROM, in which 5 failure codes can be kept. Indoor failure code exists in EEPROM, in which 5 failure codes can be kept.
  • Page 143 Indication on LED indication Failure code wired controller Failure description Remarks on master unit definition (hex) Ambient temp. sensor Tao failure AD value is below 11 (open circuit) or over Suction temp. 1012 (short circuit) for 60 seconds. 22-0 sensor Tsi failure Resumable Suction temp.
  • Page 144 Indication on LED indication wired controller Failure code definition Failure description Remarks on master unit (hex) Not finding connected indoor units for 26-0 continuous 200 cycles. The searched indoor unit quantity is less 26-1 than the set quantity for continuous 270 seconds.
  • Page 145 Indication on LED indication wired controller Failure code definition Failure description Remarks on master unit (hex) 33-0 EEPROM communication failure EEPROM (AT24C04) EEPROM data check failure(model code, 33-1 failure resumable check, etc.) EEPROM data logistic failure(data beyond 33-2 limit, reverse sequence, etc.) Tdi/Td1≥130°C (E)at interval 25msec, Discharging temp.
  • Page 146 Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) High pressure Once confirmed, sensor Pd too Not applicable for this mode. unresumable low protection After compressor is running(except for residual operation), if in cooling, Low pressure Ps<0.10MPa;...
  • Page 147 Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) Low pressure Once sensor Ps too Not applicable for this mode confirmed, high protection unresumable Communication failure among No communication within 30 seconds continuously (E) outdoor units Resumable Communication...
  • Page 148 Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) Submachine quantity setting are not in conformance with 76-0 Incorrect data in EEPROM of the host. outdoor unit quantity, Reset Submachine address setting are not in conformance with 76-1 address or data in EEPROM of the host.
  • Page 149 Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) Voltage too low Voltage of DC fan driving board is lower than 280V, protection of DC then alarm.170 seconds later, resume automatically. fan driving board If it occurs 4 times in an hour, confirm the failure.
  • Page 150 Indication indication on wired Failure code Failure description Remarks on master controller definition unit (hex) Modular software Modular software over current. over current If it occurs 4 times Modular startup Compressor starts up fail for continuous 5 times. in an hour, confirm failure the failure.
  • Page 151 When there is no failure, if the starting condition can not be met, digital tube on master unit will display stand-by code: Stand-by state of capacity When capacity is over 135% or lower than 50%, the system 555.0 overmatch is standby. Stand-by state of 26°C of When it is in heating mode with ambient temp.

  • Page 152: Troubleshooting

    5.2 Troubleshooting Valve box failure diagnose Valve box LED3 malfunction indicator light flicker 5 times one cycle: malfunction definition [ EEPROM data error ] Check if the valve box Reconnect the EE, power on and search PCB EE plug well If the valve box PCB EE is damaged The valve box PCB is...
  • Page 153 Valve box LED3 malfunction indicator light flicker 6 times one cycle: malfunction definition [fault of communication between valve box and outdoor unit] If the valve box Power on the valve box PCB is electricity If the wiring of terminal P, Q Modify the wiring between valve box and outdoor unit is connect well...
  • Page 154 Valve box LED3 malfunction indicator light flicker 7 times one cycle: malfunction definition[ fault of communication between valve box and indoor unit] If the valve box Power on the valve box PCB is electricity If the wiring of terminal P, Q between valve box and Modify the wiring indoor unit is connect well...
  • Page 155 Valve box LED3 malfunction indicator light flicker 9 times one cycle: malfunction definition [ the valve box address repeat] If the valve box PCB Power on again and set the address manually in set address by manual sequence Check if the address of failure valve box is in Reset the address by manual accordance with the set...
  • Page 156 Valve box LED3 malfunction indicator light flicker 9 times one cycle: malfunction definition [ outdoor unit failure] Check the outdoor failure code, according to the outdoor troubleshooting process to solve it. Outdoor failure diagnose [20~25, 32] temperature sensor failure reconnect if sensor terminal is fixed wel l if sensor resistor replace sensor...
  • Page 157 [26]communication circuit between indoor and outdoor if wiring between Pand modify the communication wire Q is wrong or broken down if wire of CN29 on outdoor modify the port connecting board is normal if wire of CN15 on indoor PCB is normal if indoor and outdoor are connect power source electrified at the same time...
  • Page 158 [28, 29] High/low pressure sensor failure if sensor terminal is fixed reconnect well if voltage between red terminal and black terminal replace PCB is 5V when testing pressure sensor by multimeter if voltage between white terminal and black terminal replace pressure sensor is 0.5V~3.5V when testing pressure sensor by multimeter...
  • Page 159 [30-0,30-1,30-2]high pressure switch shut off failure if connection between re-connect pressure switch and connecting board is good if the system pressure meets replace pressure switch the condition that pressure switch shuts off make pressure switch close, measure if terminal is conductive by multimeter if the system is clogged check the piping system...
  • Page 160 [35] 4-way valve reversing fail u re if connection between re-connect 4-way valve and connecting board is good if Tsuc is fixed well and fix again or replace the sensor if its characteristic is correct if system meets condition check if SV1 leaks of 4-way valve reversing: Pd-Ps>0.6MPa measure if CN49...
  • Page 161 [36] protection of oil temperature too low if Toil is fixed well and fix again or replace the sensor if its characteristic is correct in cooling mode, check check indoor electronic if electronic expansion valve expansion valve of indoor unit which is not running does not close fully in heating mode, check...
  • Page 162 [39-0, 39-1] low pressure too l o w and compression ratio too high if actual pressure is in replace pressure sensor conformance with the measured data by sensor check if stop valve is open open stop valve fully check if system is lack recharge refrigerant of refrigerant check if terminal of...
  • Page 163 [40] high pressure protection if characteristic of replace pressure sensor high pressure sensors are normal open stop valve if stop valve opens fully if in cooling outdoor check fan motor fan motor runs normally if in heating indoor check indoor fan motor runs normally and if filter is clogged check if piping system is...
  • Page 164 [43-0, 43-1] protection of discharging temperature too low if Toil is fixed well and fix again or replace the sensor if its characteristic is correct in cooling mode, check check indoor electronic if electronic expansion valve expansion valve of indoor unit which is not running does not close fully in heating mode, check...
  • Page 165 [45] communication among outdoors failure check if communication wire re-connect among outdoors is connected normally check if communication replace outdoor communication wire among outdoors is wire broken down if outdoor unit number re-set unit number is set correctly if there is interference in remove the interference the place where outdoor is installed...
  • Page 166 [46] communication with inverter module failure check if communication wire re-connect between connecting board and module is connected normally check if dip switches are set as folowing: re-set dip switch BM3-4 OFF; BM5-5, BM5-6 OFF; BM5-7, BM5-8 ON check if communication replace wire wire is broken down measure if voltage of...
  • Page 167 [53-0] current sensor failure check if wire between connecting board and CT re-connect board is connected well(CN9) check if CT wire is replace wire conductive check if it is normal after replace connecting board replacing CT board CT board is broken down...
  • Page 168 [64-0] CT over current check if wire between connecting board and re-connect module is connected normally check if CT wire is replace wire conductive if temperature on if AC if normal after top of fixed frequency contactor replacing CT compressor is too works detector high...
  • Page 169 [67] fan motor with driving board communication failure check if communication wire re-connect between connecting board and module is connected normally check if dip switches are set as folowing: re-set dip switch BM5-1, BM5-2 OFF; BM5-3, BM5-4 ON check if capacity setting is re-set dip switch correct measure if voltage of...
  • Page 170 [71] DC motor blocked check if wire of fan motor re-connect and test again circuit is fixed well(around rectifier) check if fan motor wires replace wire and test again are conductive (to CN34 of connecting board) check if motor of 375W is replace connecting board running rotate fan motor by...
  • Page 171 [75-0, 75-4] pressure drop too low between high pressure and low one check if high/low pressure re-connect sensor is connected well check if compressor correct compressor wire wire is connected normally if wires of inverter correct compressor wire compressor are connected oppositely if 4-way valve is replace 4-way valve...
  • Page 172 [76] outdoor address or capacity setting incorrect cut off power supply and search if outdoor horse power is EEPROM again changed (76-2) cut off power supply and search if outdoor quantity is changed(76-0) EEPROM again set unit number again, cut off if outdoor unit number is power supply and search correct(76-1)
  • Page 173 [100] IPM abnormal of DC fan motor driving board if wire between fan motor re-connect and test again and module is connected normally if radiator motor is if there is 220VAC on replace PCB running after fan motor CN50 of connecting starts up board replace radiator...
  • Page 174 [102] DC motor driving board EEPROM f ailure if wire between fan motor re-connect and test again and module is connected normally replace motor and module [103] DC motor driving board overcurrent or current sensor broken down if wire between fan motor re-connect and test again and module is connected normally...
  • Page 175 [105] protection of DC motor driving board overcurrent if voltage between P[+] and N[-] of replace motor or module module >385VDC if voltage between Land replace module N of module >273VAC check wire and input voltage [106] DC motor driving board blocked if wire between fan motor re-connect and module is connected...
  • Page 176 [110] power module overcurrent check if voltage of power improve power supply circuit supply is normal check if wire of electric box is correct, and if correct the wiring due to diagr am compressor wire is fixed well if compressor is replace compressor normal(compressor coil resistor, insulation)
  • Page 177 [111] compressor out of control check if voltage of power improve power supply circuit supply is normal check if wire between inverter board and IPM correct the wiring due to diagram driving board, and wire between IPM and compressor are correct if PWM signal on replace control board inverter board and IPM...
  • Page 178 [112] radiator of transducer temp.too high replace radiating if radiating fan is if fan is broken down running if terminal of fan is fix it well fixed well check if there is 220V output on control board if screw of module is fix it well and fixed well, and if radiating silica gel is...
  • Page 179 [114] voltage too low of DC bus line of transducer check if voltage of power improve power supply circuit supply is normal check if wire of electric correct the wiring due to diagram box is correct if AC contactor adjust or replace relay or relay acts well measure if DC bus circuit of DC bus line voltage on...
  • Page 180 [116] communication abnormal between transducer(inverter module board) and control PCB check if wire between adjust communication wire control PCB and inverter board is abnormal check if communication circuit of main control PCB is replace main control board abnormal(if signal LED flashes abnormally) detecting circuit on inverter if inverter module...
  • Page 181 [118] compressor startup failure because of overcurrent or overheat check if voltage of power improve power supply circuit supply is normal check if wire between inverter board and IPM driving board, and wire correct the wiring due to diagram between IPM and compressor are correct;...
  • Page 182 [120] power supply of transducer abnormal check if voltage of power improve power supply circuit supply is normal check if wire of electric correct the wiring due to diagram box is correct if relay or AC adjust or replace relay or AC contactor acts contactor well...
  • Page 183 [121] power supply of inverter board is abnormal check if voltage of power improve power supply circuit supply on inverter control board is normal check if wire between adjust communication wire control PCB and inverter board is abnormal check if communication circuit of main control PCB is replace main control board abnormal(if signal LED...
  • Page 184 [122] radiator temp.sensor of transducer abnormal check if connection betwee n adjust connection temp.sensor and inverter board measure if temp.sensor replace sensor resistor is normal replace inverter control board [125] compressor frequency not match well replace power module check if power module is n ormal solve the failures due to relative information [127] MCU reset abnormal...

  • Page 185: Appendixi: Sensor Resistance Table

    AppendixI: Sensor Resistance Table Code Resistance Description 0010451307 Suction air temp. sensor (Tsacc Tsi Tsco) 0010450949 Pipe temp. sensor (Toci1, Toci2) 0010451328 Pipe temp. sensor (Tdef1 Tdef2 Tliqsc) 0010450192 Outdoor ambient temp. sensor (Tao) 0010451303 Discharging temp. sensor (Toil Toilp Tdi Td1 Tdp)
  • Page 186 R80=50KΩ±3% B25/50=4450K±3% Temp Resistance (KΩ) % (Resist.tol) (°C) Rmax R (t)Normal Rmin MAX (+) MIN (-) 1749.01 1921.99 2094.97 9.00 9.00 1651.43 1813.27 1975.10 8.93 8.93 1560.17 1711.65 1863.13 8.85 8.85 1474.74 1616.59 1758.45 8.78 8.78 1394.71 1527.61 1660.51 8.70 8.70 1319.68 1444.25...
  • Page 187 R80=50KΩ±3% B25/50=4450K±3% Temp Resistance (KΩ) % (Resist.tol) (°C) Rmax R (t)Normal Rmin MAX (+) MIN (-) 272.33 290.41 308.49 6.23 6.23 260.43 277.49 294.56 6.15 6.15 249.10 265.22 281.33 6.08 6.08 238.33 253.54 268.75 6.00 6.00 228.07 242.44 256.80 5.93 5.93 218.31 231.87...
  • Page 188 R80=50KΩ±3% B25/50=4450K±3% Temp Resistance (KΩ) % (Resist.tol) (°C) Rmax R (t)Normal Rmin MAX (+) MIN (-) 64.99 67.42 69.84 3.60 3.60 62.61 64.90 67.19 3.53 3.53 60.34 62.49 64.65 3.45 3.45 58.15 60.19 62.22 3.38 3.38 56.06 57.97 59.89 3.30 3.30 54.05 55.85...
  • Page 189 R80=50KΩ±3% B25/50=4450K±3% Temp Resistance (KΩ) % (Resist.tol) (°C) Rmax R (t)Normal Rmin MAX (+) MIN (-) 20.07 21.05 22.03 4.67 4.67 19.41 20.37 21.34 4.73 4.73 18.77 19.72 20.67 4.80 4.80 18.16 19.09 20.02 4.87 4.87 17.57 18.49 19.40 4.93 4.93 17.01 17.90...
  • Page 190 R25=10KΩ±3% B25/50=3700K±3% Temp Resistance (KΩ) % (Resist.tol) (°C) Rmax R (t)Normal Rmin MAX (+) MIN (-) 145.82 135.02 124.22 7.00 7.00 138.07 129.13 120.18 6.93 6.93 131.79 123.34 114.89 6.85 6.85 125.67 117.68 109.70 6.78 6.78 119.71 112.18 104.65 6.71 6.71 113.93 106.84...
  • Page 191 R25=10KΩ±3% B25/50=3700K±3% Temp Resistance (KΩ) % (Resist.tol) (°C) Rmax R (t)Normal Rmin MAX (+) MIN (-) 31.45 30.00 28.56 4.82 4.82 29.95 28.59 27.24 4.75 4.75 28.54 27.26 25.99 4.67 4.67 27.20 26.01 24.81 4.60 4.60 25.94 24.82 23.69 4.53 4.53 24.74 23.69...
  • Page 192 R25=10KΩ±3% B25/50=3700K±3% Temp Resistance (KΩ) % (Resist.tol) (°C) Rmax R (t)Normal Rmin MAX (+) MIN (-) 5.36 5.15 4.94 4.06 4.06 5.17 4.96 4.76 4.13 4.13 4.98 4.78 4.58 4.19 4.19 4.80 4.60 4.41 4.25 4.25 4.63 4.43 4.24 4.31 4.31 4.46 4.27...
  • Page 193 R25=10KΩ±3% B25/50=3700K±3% Temp Resistance (KΩ) % (Resist.tol) (°C) Rmax R (t)Normal Rmin MAX (+) MIN (-) 1.68 1.58 1.48 6.19 6.19 1.63 1.53 1.43 6.25 6.25 1.58 1.48 1.39 6.31 6.31 1.53 1.44 1.35 6.38 6.38 1.49 1.40 1.31 6.44 6.44 1.44 1.36...
  • Page 194 Appendix II: Enthalpy-Humidity Chart 0 10 0mmHg Humidity d. g/kg dry air k∫ /kg kcal /kg Wet ait enthalpy-humidity chart 1000 1013.25mbar (10Pa) Atmosphetic ptessute 760mmHg =1.01t+0.001d(2500+1.84t)k∫/kg dtyait =1.24t+0.001d(597.3+0.44t)kcal/kg dtyait...
  • Page 195 Haier Commercial Air Condition Web: Http://www.haier.com Haier reserves the right to make change without any notice.

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