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Haier 1U71S2SG1FA Service Manual

R32 super match ii multi split
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II
R32 Super Match
Multi Split
SYJS-07-2018 REV.A
Edition: 2018-07

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  Summary of Contents for Haier 1U71S2SG1FA

  • Page 1 R32 Super Match Multi Split SYJS-07-2018 REV.A Edition: 2018-07...
  • Page 2: Table Of Contents

    CONTENTS Part 1 General Information ............................1 1. Lineup ..................................1 2. Feature ..................................3 Part 2 Indoor Units-4-Way Cassette Type........................5 1. Feature ..................................6 2. Specification ................................8 3. Dimension................................12 4. Wiring Diagram ..............................14 5. Air Velocity and Temperature Distribution ......................17 6. Sound Pressure level ............................19 7.
  • Page 3: Part 1 General Information

    Part 1 General Information 1. Lineup ..................................1 2. Feature ..................................2...
  • Page 4: Lineup

    1. Lineup Model Apperance 1U71S2SG1FA 3U55S2SR2FA 3U70S2SR2FA Outdoor Unit 4U75S2SR2FA 4U85S2SR2FA 5U105S2SS2FA Model Apperance AB25S2SC1FA AB35S2SC1FA 4-Way Cassette AB50S2SC1FA AB71S2SG1FA Indoor Unit AD25S2SS1FA AD35S2SS1FA AD25S2SS2FA AD35S2SS2FA Low ESP Duct AD50S1SS2FA AD50S2SS2FA AD71S2SS1FA AD71S2SS2FA...
  • Page 5 Model Apperance AD35S2SM3FA AD50S2SM1FA AD71S2SM1FA AD71S2SM3FA Indoor Unit Medium Pressure Duct AD90S2SM3FA AD105S2SM3FA AD125S2SM3FA AD140S2SM3FA...
  • Page 6: Feature

    2. Feature Clean Design The outdoor unit takes no screw clean design in the top cover, this design makes people comfort when they are watching the outdoor unit; High Efficiency New outdoor unit and indoor unit design to get a ultra high SEER/SCOP A+++/A++ which is reaching the world class energy efficiency (3U55) High Comfort The new outdoor unit takes 550mm diameter large fan design, multi split II outdoor unit can provide same air flow...
  • Page 7 Installation Friendly External General Stop Valve The outdoor unit takes external general stop valve in all outdoor unit design, installer can vaccum/charge just one time with no extra dismantlement, save lots of time; General stop valve Easy Start Up & Maintenance In start up &...
  • Page 8: Part 2 Indoor Units-4-Way Cassette Type

    Part 2 Indoor Units-4-Way Cassette Type 1. Feature ..................................6 2. Specification ................................8 3. Dimension................................12 4. Wiring Diagram ..............................14 5. Air Velocity and Temperature Distribution ......................17 6. Sound Pressure level ............................19 7. Installation ................................21...
  • Page 9: Feature

    The new 620mm*620mm panel is very fit for thestandard decoration panel, won't cover otherthings like light, looks more beautiful; "Spiral" panel “Spiral” concept, “Haier” image; Energy Efficiency DC Fan Motor Compared to conventional AC fan motor, DC fan motor is more efficiency.
  • Page 10 Comfort Individual Flap Control Four flaps can be controlled individually, airflow can be controlled according to end user needs. Increase comfort; Horizontal Fixed Adjustable Downward corner installation solution Installation Friendly Easy Access Electrical Box Design The electrical box is located in the unit, you can just make maintenance by openning the panel .
  • Page 11: Specification

    2. Specification Item Model AB25S2SC1FA Function —— Cooling Heating Capacity 2600 3200 Sensible heat ratio 0.71 Dehumidifying capacity 10-³xm³/h Power supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*1 Speed(H-M-L) r/min 690/620/560/500 Fan motor output/input power 10/15 Air-flows (H-M-L) m³/h 620/520/450/350 Type / Diameter Inner grooved pipe/φ7.0...
  • Page 12 Item Model AB35S2SC1FA Function —— Cooling Heating Capacity 3500 4000 Sensible heat ratio 0.71 Dehumidifying capacity 10-³xm³/h Power supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*1 Speed(H-M-L) r/min 690/620/560/500 Fan motor output/input power 10/15 Air-flows (H-M-L) m³/h 620/520/450/350 Type / Diameter Inner grooved pipe/φ7.0 ——...
  • Page 13 Item Model AB50S2SC1FA Function —— Cooling Heating Capacity 5000 5500 Sensible Heat Ratio 0.71 Dehumidifying Capacity 10-³xm³/h Power Supply 1PH, 220-240V~, 50/60Hz Type × Number —— Axial Fiow*1 Speed (H-M-L) r/min 800/700/600 Fan Motor Output/Input 33/50 Power Air-Flows (H-M-L) m³/h 700/620/500 External Static Pressure Type / Diameter...
  • Page 14 Item Model AB71S2SG1FA Function —— Cooling Heating Capacity 7100 8000 Sensible Heat Ratio 0.71 Dehumidifying Capacity 10-³xm³/h Power Supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*2 Speed (H-M-L) r/min 650/600/550/500 Fan Motor Output/Input 45/50 Power Air-Flows (H-M-L) m³/h 1260/1070/820/680 External Static Pressure Type / Diameter Inner Grooved Pipe/¢...
  • Page 15: Dimension

    3. Dimension AB25S2SC1FA AB35S2SC1FA AB50S2SC1FA...
  • Page 16 AB71S2SG1FA...
  • Page 17: Wiring Diagram

    4. Wiring Diagram AB25S2SC1FA AB35S2SC1FA HEATER WIRED CONTROLLER...
  • Page 18 AB50S2SC1FA...
  • Page 19 AB71S2SG1FA...
  • Page 20: Air Velocity And Temperature Distribution

    5. Air Velocity and Temperature Distribution AB25S2SC1FA AB35S2SC1FA AB50S2SC1FA AB71S2SG1FA a. Cooling / air velocity distribution Cooling Blowy angle: 40 Air velocity distribution 2.7m 1.5m/s 1.5m/s 1.0m/s 1.0m/s 0.5m/s 0.5m/s b. Cooling / temperature distribution Cooling Blowy angle:4 0 Temperature distribution 2.7m...
  • Page 21 c. Heating / air velocity distribution Heating Blowy angle:70 Air velocity distribution 2.7m 1.5m/s 1.5m/s 1.0m/s 1.0m/s 0.5m/s 0.5m/s d. Heating / temperature distribution Heating Blowy angle:70 Temper Ature distribution 2.7m...
  • Page 22: Sound Pressure Level

    6. Sound Pressure level...
  • Page 24: Installation

    7. Installation ① Before Installation <Don't discard any accessories until comp> • Determine the way tocarry unit toinstallation place. • Don't remove packing until unit reaches installation place. • If unpacking is unkavoidable, protect unit properly. ② Selection Of Installation Place (1) Installation place shall meet the following and agreed by customers •...
  • Page 25 ③ Preparation for the Installation (1) Position of ceiling opening between unit and suspending bolt. AB50S2SF1FA AB71S2SG1FA AB25S2SC1FA AB35S2SC1FA AB50S2SC1FA AB50S2SF1FA AB71S2SG1FA 25S2SC1FA AB35S2SC1FA AB50S2SC1FA AB25S2SC2FA AB35S2SC2FA AB50S2SC2FA 25S2SC2FA AB35S2SC2FA AB50S2SC2FA Distance between Distance between suspending bolts 535mm suspending bolts 535mm Distance between Distance between suspending bolts 765mm...
  • Page 26 ④ Installation of Indoorunit In The Case of New Ceiling Installation example (1) Install unit temporally Roof Put suspending bracket on the suspending bolt. Anchor bolt Be sure to use nut and washer at both ends of the Long nut bracket.
  • Page 27 In the Case of Ceiling Already Exisls (1) Install unit temporally Put suspending bracket on the suspending bolt. Be sure touse nut and washer at both ends of the bracket. Fix the bracket firmly. (2) Adjust the height and position of the unit. (Refer to preparation for the installation (1) ). (3) Proceed with ③...
  • Page 28 Liquid pipe ⑥ Installation of Waterdrainage Pipe (1) Install water drainage pipe • Pipe dia, shall be equal or larger than that of unit piping. (Pipe of polyethylent; size 25mm; O.D 32mm) • Drain pipe should be short, with a downward slope at least 1/100 toprevent air bag from happening. •...
  • Page 29 Suspending bracket 300mm below 1~1.5m self-provided stiff pipe Drain hose Suspending bracket 300mm below (accessory) 1~1.5m self-provided stiff pipe accessory) Drain hose drain water lifting pipe (accessory) (accessory) drain water lifting pipe Clamp Note: Clamp (accessorry) (accessorry) The slope of water drain hose (1) shall be within 75mm, don't apply too much force on it. If several water hoses join together, do as per following proceedures.
  • Page 30 Connect with outdoor unit Terminal block PCB on indoor unit When Wiring is not Complele Terminal block • Remove cover of control box, connect 1PH power to terminal 1 and 2 on terminal block. Use remote controller to operate the unit. •...
  • Page 31 ⑧ Wiring Example As for outdoor unit circuit, please see installation manual of outdoor unit. Note all electric wires have their own poles, poles must match that on terminal block. Pay special care lo lhe following and check afler inslallalion Item to the checked Unproper inslallalion may cause Is indoor unit firmly installed?
  • Page 32 Unventilated Areas - WARNING: The appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified. - WARNING: The appliance shall be stored in a room without continuously operating open flames (e.g.an operating gas appliance) and ignition sources (e.g.
  • Page 33 Ventilated Area - Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.
  • Page 34 Repair to Intrinsically Safe Components - Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use. - Intrinsically safe components are the only types that can be worked on while live in the presence of a flammable atmosphere.
  • Page 35 - Become familiar with the equipment and its operation. - Isolate system electrically. - Before attempting the procedure, ensure that: • mechanical handling equipment is available, if required, for handling refrigerant cylinders; • all personal protective equipment is available and being used correctly; •...
  • Page 36: Part 3 Indoor Units -Low Pressure Slim Duct Type

    Part 3 Indoor Units -Low Pressure Slim Duct Type 1. Feature ..................................34 2. Specification ................................36 3. Dimension................................44 4. Wiring Diagram ..............................45 5. Airflow and Static Pressure Chart ..........................46 6. Installation ................................48...
  • Page 37: Feature

    185mm body height provide best floor height for room, which is advanced in the industry. 420mm 185mm High Efficiency Dc Fan Motor Haier cassette adopts DC fan motor,compared to conventional AC fan motor, DC fan motor is more efficiency. Torque(kgfcm) Torque(kgfcm) 87.5% 200 400 600 800 1000...
  • Page 38 Design Friendly Built In Drain Pump We have two models as option, one is with drain pump, the other one is with no drain pump, it is easy for the designer to design the product location; 1000mm * Rear or bottom air return, left or right drain outlet * Rear air return (Standard) / Bottom air return (Change on site) Easy Installation Adjusted Pressure By Wired Controller...
  • Page 39: Specification

    2. Specification Item Model AD25S2SS1FA Function —— Cooling Heating Capacity 2500 3000 Sensible heat ratio 0.71 Dehumidifying capacity 10-³xm³/h Power supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*2 Speed(H-M-L) r/min 850/750/650/600 Fan motor output/input power 11/15 Air-flows (H-M-L) m³/h 530/460/390/330 External static pressure 0/10/20/30...
  • Page 40 Item Model AD25S2SS2FA Function —— Cooling Heating Capacity 2500 3000 Sensible Heat Ratio 0.71 Dehumidifying Capacity 10-³xm³/h Power Supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*2 Speed (H-M-L) r/min 850/750/650/600 Fan Motor Output/Input Power 11/15 Air-Flows (H-M-L) m³/h 530/460/390/330 External Static Pressure 0/10/20/30 Type / Diameter...
  • Page 41 Item Model AD35S2SS1FA Function —— Cooling Heating Capacity 3500 4000 Sensible heat ratio 0.71 Dehumidifying capacity 10-³xm³/h Power supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*2 Speed(H-M-L) r/min 950/850/750/700 Fan motor output/input power 16/21 Air-flows (H-M-L) m³/h 600/480/420/350 External static pressure 0/10/20/30 Type / Diameter Inner grooved pipe/φ7.0...
  • Page 42 Item Model AD35S2SS2FA Function —— Cooling Heating Capacity 3500 4000 Sensible Heat Ratio 0.71 Dehumidifying Capacity 10-³xm³/h Power Supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*2 Speed (H-M-L) r/min 950/850/750/700 Fan Motor Output/Input Power 16/21 Air-Flows (H-M-L) m³/h 600/480/420/350 External Static Pressure 0/10/20/30 Type / Diameter...
  • Page 43 Item Model AD50S2SS1FA Function —— Cooling Heating Capacity 5000 5500 Sensible Heat Ratio 0.71 Dehumidifying Capacity 10-³xm³/h Power Supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*3 Speed (H-M-L) r/min 900/800/700/600 Fan Motor Output/Input Power 40/55 Air-Flows (H-M-L) m³/h 900/750/600/450 External Static Pressure 0/10/20/30 Type / Diameter...
  • Page 44 Item Model AD50S2SS2FA Function —— Cooling Heating Capacity 5000 5500 Sensible Heat Ratio 0.71 Dehumidifying Capacity 10-³xm³/h Power Supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*3 Speed (H-M-L) r/min 900/800/700/600 Fan Motor Output/lnput Power 40/55 Air-Flows (H-M-L) m³/h 900/750/600/450 External Static Pressure 0/10/20/30 Type / Diameter...
  • Page 45 Item Model AD71S2SS1FA Function —— Cooling Heating Capacity 7100 7500 Sensible Heat Ratio 0.71 Dehumidifying Capacity 10-³xm³/h Power Supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*3 Speed (H-M-L) r/min 1250/1100/1000/900 Fan Motor Output/lnput Power 48/55 Air-Flows (H-M-L) m³/h 1000/850/750/650 External Static Pressure 0/10/20/30 Type / Diameter...
  • Page 46 Item Model AD71S2SS2FA Function —— Cooling Heating Capacity 7100 7500 Sensible Heat Ratio 0.71 Dehumidifying Capacity 10-³xm³/h Power Supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*3 Speed (H-M-L) r/min 1250/1100/1000/900 Fan Motor Output/lnput Power 48/55 Air-Flows (H-M-L) m³/h 1000/850/750/650 External Static Pressure 0/10/20/30 Type / Diameter...
  • Page 47: Dimension

    3. Dimension AD25S2SS1FA AD25S2SS2FA AD35S2SS1FA AD35S2SS2FA AD50S2SS1FA AD50S2SS2FA AD71S2SS1FA AD71S2SS2FA Unit Model AD50S2SS1FA AD50S2SS2FA 1212 1170 1080 AD71S2SS1FA AD71S2SS2FA...
  • Page 48: Wiring Diagram

    4. Wiring Diagram AD25S2SS1FA AD35S2SS1FA AD50S2SS1FA AD71S2SS1FA AD71S2SS2FA...
  • Page 49: Airflow And Static Pressure Chart

    5. Airflow and Static Pressure Chart AD25S2SS1FA AD25S2SS2FA AIR FLOW AND STATIC PRESSURE CHART 30 Pa 30 Pa 20 Pa 20 Pa 10 Pa 10 Pa 0 Pa 0 Pa static pressure (Pa) static pressure (Pa) AD35S2SS1FA AD35S2SS2FA AIR FLOW AND STATIC PRESSURE CHART 30 Pa 20 Pa 10 Pa...
  • Page 50 AD50S2SS21FA AD50S2SS2FA AIRFLOW AND STATIC PRESSURE CHART AIRFLOW AND STATIC PRESSURE CHART 30 Pa 30 Pa 20 Pa 20 Pa 10 Pa 10 Pa 0 Pa 0 Pa 30 Pa 20 Pa 10 Pa 0 Pa 30 Pa 20 Pa 10 Pa 0 Pa static pressure (Pa)
  • Page 51: Installation

    6. Installation AD25S2SS1(2)FA AD35S2SS1(2)FA AD50S2SS1(2)FA AD71S2SS1(2)FA The Machine Is Adaptive In Following Situation 1. Applicable ambient temperature range: Max. DB/WB 32/23 ° C Heating Min. DB/WB 18/14 ° C Cooling Max. DB/WB 46/24 ° C Outdoor Temperature Min. DB/WB 18 ° C Max.
  • Page 52 Selecting the Mounting Position to Install the Indoor Units • Select suitable places where the outlet air can be sent to the entire room, and convenient to lay out the connection pipe, connection wire and the drainage pipe to outdoor. •...
  • Page 53 • Each of the air sending duct and air return duct shall be fixed on the prefabricated panel of the floor by the iron bracket. The recommended distance between the edge of the air return duct and the wall is over 150mm. •...
  • Page 54 Installing the Suspension Screw Use M8 or M10 suspension screws (4, prepared in the field) (When the suspension screw height exceeds 0.9m, M10 size is theonly choice). These screws shall be installed as follows with space adapting to air conditioner overall dimensions according tothe original building structures.
  • Page 55 Note: Over filling or underilling of refrigerant will cause compressor fault. The amount of the added refrigerant shall be as specified in the instructions. Connecting Installing Torque (N-m) φ6.35 11.8 (1.2 kgf-m) φ9.52 24.5 (2.5 kgf-m) φ12.7 49.0 (5.0 kgf-m) φ15.88 78.4 (8.0 kgf-m) Connection of Refrigerant Pipe...
  • Page 56 CAUTlON In order to drain water normally, the drain pipe shall be processed as specified in the installation manual and shall be thermal insulated to avoid dew generation. Improper hose connection may cause indoor water leakage. Requirements • The indoor drain pipe shall be thermal insulated. •...
  • Page 57 Hose Drain pipe size: (3/4) PVC pipe The hose is used for adjusting the off-center and angle of the rigid PVC pipe. • Directly stretch the hose to install without making any deformation. • The soft end of the hose must be fastened with a hose clamp. •...
  • Page 58 - The installation of pipe-work shall be kept to a minimum. - Pipe-work shall be protected from physical damage and shall not be installed in an unventilated space, if that space is smaller than Amin (2m - Compliance with national gas regulations shall be observed. - Mechanical connections shall be accessible for maintenance purposes.
  • Page 59 Checks to the Refrigeration Equipment - Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer’s maintenance and service guidelines shall be followed. If in doubt, consult the manufacturer’s technical department for assistance.
  • Page 60 Cabling - Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans. Detection of Flammable Refrigerants Removal and Evacuation - The refrigerant charge shall be recovered into the correct recovery cylinders and the system shall be “flushed”...
  • Page 61 - Pump down refrigerant system, if possible. - If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system. - Make sure that cylinder is situated on the scales before recovery takes place. - Start the recovery machine and operate in accordance with manufacturer's instructions.
  • Page 62: Part 4 Indoor Units -Medium Pressure Slim Duct Type

    Part 4 Indoor Units -Medium Pressure Slim Duct Type 1. Specification ................................60 2. Dimension................................71 3. Wiring Diagram ..............................76 4. Airflow and Static Pressure Chart ..........................80 5. Instalaltion ................................85...
  • Page 63: Specification

    Specification Item Model AD35S2SM3FA Function —— Cooling Heating Capacity 3500 4000 Sensible Heat Ratio 0.71 Dehumidifying Capacity 10-³xm³/h Power Supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*1 Speed (H-M-L) r/min 900/800/700/650 Fan Motor Output/Input Power 110/120 Air-Flows (H-M-L) m³/h 840/720/600/450 25(Default)/37/50/70/90/ External Static Pressure...
  • Page 64 Item Model AD50S2SM1FA Function —— Cooling Heating Capacity 5000 6000 Sensible heat ratio 0.73 Dehumidifying capacity 10-³xm³/h Power supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*2 Speed(H-M-L) r/min 900/820/770/720 Fan motor output/input power 45/70 Air-flows (H-M-L) m³/h 1080/900/780/660 25/37/50/70/90/ External static pressure 100/110/120/130/150 Type / Diameter...
  • Page 65 Item Model AD50S2SM3FA Function —— Cooling Heating Capacity 5000 6000 Sensible heat ratio 0.71 Dehumidifying capacity 10-³xm³/h Power supply 1PH, 220-240V~, 50/60Hz Type × Number —— Centrifugal*2 Speed(H-M-L) r/min 750/650/550/500 Fan motor output/input power 140/160 Air-flows (H-M-L) m³/h 1020/900/780/550 25(default)/37/50/70/90/ External static pressure 100/110/120/130/150 Type / Diameter...
  • Page 66 Item Model AD71S2SM1FA Function cooling heating Capacity 7.1(2.0~8.2) 8.0(2.5~8.5) Sensible heat ratio 0.74 Total power input 2.15(0.6~2.6) 2.16(0.6~2.6) Max. power input 3000 3000 EER or COP 3.30 3.71 Dehumidifying capacity ³×m³/h Power cable H05RN-F 4G 6.0mm2 Power source N, V, Hz 1PH, 220-240V~, 50/60Hz Running /Max.Running current A / A...
  • Page 67 Item Model AD71S2SM3FA/1UH071N1ERG Function Cooling Heating Capacity 7.1(2.0~9.0) 8(2.0~10.0) Sensible heat ratio 0.72 Total power input 2.03(0.4~4.0) 2.0(0.4~4.0) Max. power input 4000 4000 EER or COP 3.5(B) 4(C) Dehumidifying capacity ×m Power cable Power source N, V, Hz 1PH, 220-240V~, 50/60Hz Running/Max.
  • Page 68 Item Model AD90S2SM3FA/1UH090N1ERG Function Cooling Heating Capacity 8.5(2.5~10) 9.5(2.5~11) Sensible heat ratio 0.72 Total power input 2.50(0.5~4.4) 2.50(0.5~4.4) Max. power input 4400 4400 EER or COP 3.4(B) 3.8(C) Dehumidifying capacity ×m Power cable Power source N, V, Hz 1PH, 220-240V~, 50/60Hz Running/Max.
  • Page 69 Item Model AD105S2SM3FA/1UH105N1ERG Function Cooling Heating Capacity 10(2.5~11) 10.4(2.5~12.0) Sensible heat ratio 0.72 Total power input 2.93(0.5~4.5) 2.8(0.5~4.5) Max. power input 5000.00 5000.00 EER or COP 3.31(B) 3.71(C) Dehumidifying capacity ×m Power cable Power source N, V, Hz 1PH, 220-240V~, 50/60Hz Running/Max.
  • Page 70 Item Model AD125S2SM3FA/1UH125P1ERG Function Cooling Heating Capacity 12.5(3.5~15.0) 14(4~18.0) Sensible heat ratio 0.74 Total power input 3.66(1.0-6.5) 3.78(1.0-6.5) Max. power input 6500 6500 EER or COP 3.31(A) 3.70(A) Dehumidifying capacity ×m Power cable Power source N, V, Hz 1PH, 220-240V~, 50/60Hz Running/Max.
  • Page 71 Item Model AD125S2SM3FA/1UH125P1ERK Function Cooling Heating Capacity 12.5(3.5~15.0) 14(4~18.0) Sensible heat ratio 0.74 Total power input 3.66(1.0-6.5) 3.78(1.0-6.5) Max. power input 6500 6500 EER or COP 3.31(A) 3.70(A) Dehumidifying capacity ×m Power cable Power source N, V, Hz 3N~380-415V,50/60Hz Running/Max. Running current 6.5(2.9-10.0)/11.0 6.7(2.9-10.0)/11.0 Start current...
  • Page 72 Item Model AD140S2SM3FA/1UH140P1ERG Function Cooling Heating Capacity 13.4(3.5~15.0) 15.5(4~19.0) Sensible heat ratio 0.74 Total power input 4.05(1.0-6.5) 4.18(1.0-6.5) Max. power input 6500 6500 EER or COP 3.31(A) 3.70(A) Dehumidifying capacity ×m Power cable Power source N, V, Hz 1PH, 220-240V~, 50/60Hz Running/Max.
  • Page 73 Item Model AD140S2SM3FA/1UH140P1ERK Function Cooling Heating Capacity 13.4(3.5~15.0) 15.5(4~19.0) Sensible heat ratio 0.74 Total power input 4.05(1.0-6.5) 4.18(1.0-6.5) Max. power input 6500 6500 EER or COP 3.31(A) 3.70(A) Dehumidifying capacity ×m Power cable Power source N, V, Hz 3N~380-415V,50/60Hz Running/Max. Running current 7.0(2.9-11.0)/11A 7.3(2.9-11.0)/11A Start current...
  • Page 74: Dimension

    2. Dimension AB35S2SM3FA 185 11 141.3...
  • Page 75 AD50S2SM1FA AD71S2SM1FA 595.5 Note: The cushion pasted in the bottom plate isn't included in the thickness data.
  • Page 76 AD50S2SM3FA...
  • Page 77 AD71S2SM3FA AD90S2SM3FA...
  • Page 78 AD105S2SM3FA AD125S2SM3FA AD140S2SM3FA...
  • Page 79: Wiring Diagram

    3. Wiring Diagram AD35S2SM3FA...
  • Page 80 AD50S2SM1FA AD71S2SM1FA...
  • Page 81 AD71S2SM3FA AD90S2SM3FA AD105S2SM3FA...
  • Page 82 AD125S2SM3FA AD140S2SM3FA A B C...
  • Page 83: Airflow And Static Pressure Chart

    4. Airflow and Static Pressure Chart AD50S2SM1FA AIR FLOW AND STATIC PRESSURE CHART 1200 1100 1000 150Pa 130Pa 120Pa 110Pa 100Pa 90Pa 70Pa 50Pa 37Pa 25Pa static pressure (Pa) AD71S2SM1FA AIRFLOW AND STATIC PRESSURE CHART 1500 1400 1300 1200 1100 1000 150Pa 130Pa 120Pa 110Pa 100Pa 90Pa 70Pa...
  • Page 84 AD35S2SM3FA air flow and static pressure chart High Quiet Static pressure (Pa) AD50S2SM3FA air flow and static pressure chart 1100 1000 High Quiet Static pressure (Pa)
  • Page 85 Airflow and Static Pressure Chart -----AD71S2SM3FA 1600 1400 1200 High 1000 Quiet Static Pressure(Pa) Airflow and Static Pressure Chart -----AD90S2SM3FA 1600 1500 1400 1300 High 1200 1100 1000 Quiet Static Pressure(Pa)
  • Page 86 Airflow and Static Pressure Chart -----AD105S2SM3FA 2300 2100 1900 1700 High 1500 1300 1100 Quiet Static Pressure(Pa) Airflow and Static Pressure Chart -----AD125S2SM3FA 2600 2400 2200 2000 High 1800 1600 1400 Quiet 1200 1000 Static Pressure(Pa)
  • Page 87 Airflow and Static Pressure Chart -----AD140S2SM3FA 2800 2600 2400 2200 2000 High 1800 1600 Quiet 1400 1200 1000 Static Pressure(Pa)
  • Page 88: Instalaltion

    5. Instalaltion For AD50S2SM1FA AD71S2SM1FA Installation procedure The machine is adaptive in following situation 1. Applicable ambient temperature range: max.DB/WB 32/23°C Indoor temperature min.DB/WB 18/14°C Cooling max.DB/WB 46/26°C Outdoor temperature min.DB/WB 10/6°C max.DB/WB 27°C Indoor temperature min.DB/WB 15°C Heating max.DB/WB 24/18°C Outdoor temperature min.DB/WB...
  • Page 89 NOTE All wiring of this installation must comply with NATIONAL, STATE AND LOCAL REGULATIONS. These instructions do not cover all variations for every kind of installation circumstance. Should further information be desired or should particular problems occur, the matter should be referred to your local distributor. WARNING BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION.
  • Page 90 1. Preparation for suspending the unit a. Size of hole at ceiling and position of hanging bolts <Combination with silent panel > AD50S2SM1FA AD71S2SM1FA Dimensions A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) Model AD50S2S M1FA AD71S2SM1FA 1433 1493 b.Hanger bolts installation Use care of the piping direction when the unit is installed.
  • Page 91 Drain Piping (a) Drain piping should always be in a down hill grade (1/50-1/100) and avoid riding across an elevation or making traps. Unit model The size of drain opening AD50S2SM1FA AD71S2SM1FA φ21mm (b) When connecting the drain pipe to unit pay suffcient attention not to apply excess force to the piping on the unit side.
  • Page 92 Drainage Test (1) Conduct a drainage test after completion of the electrical work. (2) During the trial, make sure that drain flows properly through the piping and that no water leaks from connections. (3) In case of a new building, conduct the test before it is furnished with the ceiling.
  • Page 93 WARNING DANGER OF BODILY INJURY OR DEATH • TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER SOURCE BEFORE MAKING ANY ELECTRIC CONNECTIONS. • GROUND CONN ECTIONS MUST BE COMPLETED BEFORE MAKING LINE VOLTAGE CONNECTIONS. Precautions for electrical wiring Electrical wiring work should be conducted only by authorized personnel. Do not connect more than three wires to the terminal block.
  • Page 94 AD35S2SM3FA AD50S2SM3FA AD71S2SM3FA Safety Precautions The Machineis Adaptive in Following Situation 1. Applicable ambient temperature range: Max. DB/WB 32/23°C Indoor Temperature Min. DB/WB 18/14°C Cooling Max. DB/WB 46/26°C Outdoor Temperature Min. DB/WB 10/6°C Max. DB/WB 27°C Indoor Temperature Min. DB/WB 15°C Heating Max.
  • Page 95 Installation Manual For Wire Controller Electrical components Case Air outlet frame AD35S2SM3FA AD35S2SM4FA AD50S2SM3FA AD50S2SM4FA AD71S2SM3FA AD71S2SM4FA Drain pan Evaporator Drain opening 5. Wiring connections of wire controller: There are three methods to connection wire controller and the indoor units: A.
  • Page 96 Installation Procedure Note: All wiring of this installation must comply with national, state and local regulations. These instructions do not cover all variations for every kind of installation circumstance. Should further information be desired or should particular problems occur, the matter should be referred to your local distributor. WARNING: Be sure to read these instructions carefully before beginning installation.
  • Page 97 1. Preparation for Suspending the Unit a. Size of hole at ceiling and position of hanging bolts <Combination with Silent Panel> AD35S2SM3FA AD35S2SM4FA AD50S2SM3FA AD50S2SM4FA AD71S2SM3FA AD71S2SM4FA Hanging bolt position Ceiling hole size Ceiling~panel wrap dimensions Panel dimensions Dimensions A (mm) B (mm) C (mm) D (mm)
  • Page 98 Drain Piping Drain piping should always be in a downhill grade (1/50-1/100) and avoid riding across an elevation or making traps. Unit Model The Size of Drain Opening AD35S2SM3FA AD35S2SM4FA AD50S2SM3FA AD50S2SM4FA ø25mm AD71S2SM3FA AD71S2SM4FA (b). When connecting the drain pipe to unit pay suffcient attentionnot to apply excess force to the piping on the unit side.
  • Page 99 Drainage Test (1) Conduct a drainage test after completion of the electrical work. (2) During the trial, make sure that drain flows properly through the piping and that no water leaks from connections. (3) In case of a new building, conduct the test before it is furnished with the ceiling.
  • Page 100 WARNING Danger of bodily injury or death • Turn off electric power at circuit breaker or power source before making any electric connections. • Ground connections must be completed before making line voltage connections. Precautions for electrical wiring • Electrical wiring work should be conducted only by authorized personnel. •...
  • Page 101 Safety Precautions AD90S2SM3FA AD105S2SM3FA AD125S2SM3FA AD140S2SM3FA The machine is adaptive in following situation 1. Applicable ambient temperature range: max. DB/WB 32/23°C Indoor temperature min. DB/WB 18/14°C Cooling max. DB/WB 46/26°C Outdoor temperature min. DB/WB 10/6°C max. DB/WB 27°C Indoor temperature min.
  • Page 102 Parts and Functions AD90S2SM3FA AD90S2SM4FA AD105S2SM3FA AD105S2SM4FA AD125S2SM3FA AD125S2SM4FA AD140S2SM3FA AD140S2SM4FA Installation Manual For Wire Controller 5. Wiring connections of wire controller: There are three methods to connection wire controller and the indoor units: A.One wired controller can control max. up to 16 sets of indoor units, and 3 pieces of polar wire must connect the wire controller and the master unit (the indoor unit connected with wire controller directly), the others connect with the master unit through 2 pieces of polar wire B.
  • Page 103 Installation Procedure Note All wiring of this installation must comply with national, state and local regulations. These instructions do not cover all variations for every kind of installation circumstance. Should further information be desired or should particular problems occur, the matter should be referred to your local distributor. WARNING Be sure to read these instructions carefully before beginning installation.
  • Page 104 1. Preparation for suspending the unit a. Size of hole at ceiling and position of hanging bolts <Combinat on with sient pane > AD90S2SM3FA AD90S2SM4FA AD105S2SM3FA AD105S2SM4FA AD125S2SM3FA AD125S2SM4FA AD140S2SM3FA AD140S2SM4FA Dimension A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) Model AD90S2SM3FA AD90S2SM4FA 1162 1612 1672...
  • Page 105 Drain Piping (a) Drain piping should always be in a downhill grade (1/50-1/100) and avoid riding across an elevation or making traps. Unit model The size of drain opening AD90S2SM3FA AD90S2SM4FA AD105S2SM3FA AD105S2SM4FA Φ25mm AD125S2SM3FA AD125S2SM4FA AD140S2SM3FA AD140S2SM4FA (b) When connecting the drain pipe to unit pay suffcient attention not to apply excess force to the piping on the unit side.
  • Page 106 Drain Test (1) Conduct a drainage test after completion of the electrical work. (2) During the trial make sure that drain flows properly through the piping and that no water leaks from connections. (3) In case of a new building conduct the test before it is furnished with the ceiling.
  • Page 107 WARNING DANGER OF BODILY INJURY OR DEATH TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER SOURCE BEFORE MAKING ANY ELECTRIC CONNECTIONS. GROUND CONNECTIONS MUST BE COMPLETED BEFORE MAKING LINE VOLTAGE CONNECTIONS. Precautions for electrical wiring Electrical wiring work should be conducted only by authorized personnel. Do not connect more than three wires to the terminal block.
  • Page 108: Part 5 Outdoor Units

    Part 5 Outdoor Units 1. Feature ................................106 2. Dimension................................117 3. Wiring Diagram ..............................121 4. Wiring Connection ...............................124 5. Piping Diagram ..............................127 6. Limitation Values on Pipe lnstallation ........................131 7. Combination and the Data ...........................134 8. Performance Curve .............................160 9. Sound Pressure level ............................163 10.
  • Page 109: Feature

    1. Feature Item Model 1U71S2SG1FA Power cable H05RN-F 4G 6.0mm2 Communication cable/Connecting cable H05RN-F 4G 2.5mm2 Power source N, V, Hz 1PH,220-230VAC,50/60HZ Start current Unit model (color) 1U71S2SG1FA(WHITE) Model / Manufacture SNB130FGYM2/SNB130FGYMC-L1(MGC) Oil model FV50S Compressor Oil type Oil charging...
  • Page 110 3U55S2SR2FA Item Model Function Cooling Heating Rating Capacity 5500 6800 Cooling Pdesign 5500 Heating Pdesign (-10°C) 4700 Rated Power Input (Indoor + Outdoor) 1380 1550 Rated Current Input (Indoor + Outdoor) EER/COP SEER/SCOP Minimum Capacity 2100 1700 Minimum Power Input Maximum Capacity 7000 7600...
  • Page 111 3U55S2SR2FA Item Model Type / Charge R32 / 1.6 Refrigerant No Need to Recharge Recharge Liquid 3*Φ6.35 Pipe 3*Φ9.52 Connecting Method Flared Piping Drop Between IU & OU ≤7.5 Piping Length Between IU & OU ≤10 Total Liquid Piping Length ≤30 Drop Between Indoor Units ≤1...
  • Page 112 3U70S2SR2FA Item Model Function Cooling Heating Rating Capacity 7000 7600 Cooling Pdesign 7000 Heating Pdesign (-10°C) 6000 Rated Power Input (Indoor + Outdoor) 1750 1800 Rated Current Input (Indoor + Outdoor) EER/COP SEER/SCOP Minimum Capacity 2400 2900 Minimum Power Input Maximum Capacity 7600 8500...
  • Page 113 3U70S2SR2FA Item Model Type/Charge R32 / 1.6 Refrigerant No Need to Recharge Recharge Liquid 3* Φ6.35 Pipe 3* Φ9.52 Connecting Method Flared Piping Drop Between IU & OU ≤7.5 Piping Length Between IU & OU ≤10 Total Liquid Piping Length ≤30 Drop Between Indoor Units ≤1...
  • Page 114 4U75S2SR2FA Item Model Function Cooling Heating Rating Capacity 7500 8600 Cooling Pdesign 7500 Heating Pdesign (-10°C) 6300 Rated Power Input (Indoor + Outdoor) 2000 2150 Rated Current Input (Indoor + Outdoor) EER/COP SEER/SCOP Minimum Capacity 2400 3100 Minimum Power Input Maximum Capacity 8700 10000...
  • Page 115 4U75S2SR2FA Item Model Type/Charge R32 / 2.2 Refrigerant No Need to Recharge Recharge Liquid 4/Φ6.35 Pipe 3*Φ9.52+1*Φ12.7 Connecting Method Flared Drop Between IU & OU ≤7.5 Piping Piping Length Between IU & OU ≤10 Total Liquid Piping Length ≤40 Drop Between Indoor Units ≤1 Between Max.
  • Page 116 4U85S2SR2FA Item Model Function Cooling Heating Rating Capacity 8500 9600 Cooling Pdesign 8500 Heating Pdesign (-10°C) 7000 Rated Power Input (Indoor + Outdoor) 2500 2400 Rated Current Input (Indoor + Outdoor) 12.0 11.2 EER/COP SEER/SCOP Minimum Capacity 3200 4400 Minimum Power Input Maximum Capacity 9500 10500...
  • Page 117 4U85S2SR2FA Item Model Type/Charge R32 / 2.2 Refrigerant No Need to Recharge Recharge Liquid 4/Φ6.35 Pipe 3*Φ9.52+1*Φ12.7 Connecting Method Flared Drop Between IU & OU ≤7.5 Piping Piping Length Between IU & OU ≤10 Total Liquid Piping Length ≤40 Drop Between Indoor Units ≤1 Between Max.
  • Page 118 5U105S2SS2FA Item Model —— Function Cooling Heating Rating capacity 10000 10500 Cooling Pdesign 10000 Heating Pdesign(-10°C) 8000 Rated power input (indoor + outdoor) 3400 2800 Rated current input (indoor + outdoor) 15.5 12.2 EER / COP SEER / SCOP Minimum capacity 3200 4400 Minimum power input...
  • Page 119 Item Model 5U105S2SS2FA Type / Charge R32 / 2.4 Refrigerant No need to recharge Recharge Liquid 5* Φ6.35 Pipe 3* Φ9.52+2*Φ12.7 Connecting method —— Flared Drop between IU & OU ≤7.5 Piping Piping length between IU & OU ≤10 Total liquid piping length ≤40 Drop between indoor units ≤1...
  • Page 120: Dimension

    2. Dimension 1U71S2SM1FA...
  • Page 121 3U55S2SR2FA 3U70S2SR2FA Liquid pipe Φ6.35(flared)1/3 Gas pipe Φ9.52(flared)3/8...
  • Page 122 4U75S2SR2FA 4U85S2SR2FA ● Liquid pipe Φ 6.35(flared)1/4 ● ● ● Gas pipe Φ 9.52(flared)3/8(A,B,C unit) ● Φ 12.7(flared)1/2(D unit)
  • Page 123 5U105S2SS2FA...
  • Page 124: Wiring Diagram

    3. Wiring Diagram 1U71S2SM1FA...
  • Page 125 3U55S2SR2FA 3U70S2SR2FA ● ● ●...
  • Page 126 4U75S2SR2FA 4U85S2SR2FA 5U105S2SR2FA...
  • Page 127: Wiring Connection

    4. Wiring Connection 3U55S2SR2FA 3U70S2SR2FA Power Supply 1PH,220~240V ,50/60Hz Central Controller Indoor Unit A Indoor Unit B Indoor Unit C Power Supply Cable: H05RN-F3G 4.0mm Connecting Cable: H05RN-F4G 2.0mm Connecting Cable: H05RN-F2G 2.0mm Connect the connecting wires between indoor and outdoor units and ensure the sequence numbers on terminals match with each other.
  • Page 128 4U75S2SR2FA 4U85S2SR2FA Power Supply Power Supply 1PH,220~240V ,50/60Hz 1PH,220~240V ,50/60Hz Central Controller Indoor Unit D Indoor Unit A Indoor Unit B Indoor Unit C Indoor Unit A Indoor Unit B Indoor Unit C Power Supply Cable: H05RN-F3G 4.0mm Power Supply Cable: H05RN-F3G 4.0mm Connecting Cable: H05RN-F4G 2.0mm Connecting Cable: H05RN-F4G 2.0mm Connecting Cable: H05RN-F2G 2.0mm...
  • Page 129 5U105S1SS2FA Power Supply 1PH,220~240V ,50/60Hz Indoor Unit D Indoor Unit A Indoor Unit B Indoor Unit C Power Supply Cable: H05RN-F3G 4.0mm Power Supply Cable: H05RN-F3g 4.0mm Connecting Cable: H05RN-F4G 2.0mm Connecting Cable: H05RN-F4G 2.0mm Connecting Cable: H05RN-F4G 2.0mm Connecting Cable: H05RN-F2G 2.0mm Connect the connecting wires between indoor and outdoor units and ensure the sequence numbers on terminals match with each other.
  • Page 130: Piping Diagram

    5. Piping Diagram 1U71S2SM1FA...
  • Page 131 3U55S2SR2FA 3U70S2SR2FA Suction temp. sensor...
  • Page 132 4U75S2SR2FA 4U85S2SR2FA Suction temp. sensor...
  • Page 133 5U105S2SS2FA...
  • Page 134: Limitation Values On Pipe Lnstallation

    6. Limitation Values on Pipe lnstallation 3U55S2SR2FA 3U70S2SR2FA The piping length information, please refer the following table. Item Unit Description Standard Maximum A,B,C Liquid Pipe mm Size of the liquid side connection pipe φ6.35 A,B,C Gas Pipe Size of the gas side connection pipe φ9.52 L1 (One Way) Max.piping length between IU and OU of the way...
  • Page 135 4U75S2SR2FA 4U85S2SR2FA The piping length information, please refer the following table. Item Unit Description Standard Maximum A,B,C, Dliquid Pipe mm Size of the liquid side connection pipe φ6.35 A,B,C Gas Pipe mm Size of the gas side connection pipe φ9.52 D Gas Pipe mm Size of the gas side connection pipe φ12.7...
  • Page 136 5U34HS1ERA 5U45LS1ERA The piping length information, please refer the following table. Item Unit Description Standard Maximum A,B,C,D,E liquid pipe mm Size of the liquid side connection pipe φ6.35 A,B,C,D Gas pipe mm Size of the gas side connection pipe φ9.52 E Gas pipe mm Size of the gas side connection pipe φ12.7...
  • Page 137: Combination And The Data

    7. Combination and the Data 3U55S2SR2FA combination and the data COOLING 5.5 Rated capacity Total cooling Total power input Total current Combinations (kW) capacity (kW) (kW) (A)@230V (W/W) (Nom. cooling) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit...
  • Page 138 3U55S2SR2FA combination and the data HEATING 6.8 Rated Total heating Total power input Total current Combinations capacity(kW) capacity(kW) (A)@230V (W/W) (Nom. heating) ENERGY SCOP ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max.
  • Page 139 3U70S2SR2FA combination and the data COOLING 7 Rated Total cooling Total power input Total current Combinations capacity(kW) capacity(kW) (kW) (A)@230V (W/W) (Nom. cooling) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Min. Rated Max. Min.
  • Page 140 3U70S2SR2FA combination and the data HEATING 7.6 Rated Total heating Total power input Total current Combinations capacity(kW) capacity(kW) (A)@230V (W/W) (Nom. heating) ENERGY SCOP ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max.
  • Page 141 4U75S2SR2FA combination and the data COOLING 7.5 Rated capacity Total cooling Total power input Total current Combinations output/kW capacity(kW) (kW) (A)@230V (W/W) (Nom. cooling) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min.
  • Page 142 Rated capacity output/ Total cooling Total power input Total current Combinations capacity(kW) (kW) (A)@230V (W/W) (Nom. cooling) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max. Min. Rated Max.
  • Page 143 Rated capacity output/ Total cooling Total power input Total current Combinations capacity(kW) (kW) (A)@230V (W/W) (Nom. cooling) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max. Min. Rated Max.
  • Page 144 4U75S2SR2FA combination and the data HEATING 8.6 Rated capacity Total heating Total power Total current Combinations output/kW capacity(KW) input(W) (A)@230V (W/W) (Nom. heating) ENERGY SCOP ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max.
  • Page 145 Rated capacity Total heating Total power Total current Combinations output/kW capacity(KW) input(W) (A)@230V (W/W) (Nom. heating) ENERGY SCOP ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max. Min. Rated Max.
  • Page 146 Rated capacity Total heating Total power Total current Combinations output/kW capacity(KW) input(W) (A)@230V (W/W) (Nom. heating) ENERGY SCOP ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max. Min. Rated Max.
  • Page 147 4U85S2SR2FA combination and the data COOLING 8.5 Rated capacity Total cooling Total power input Total current Combinations output/kW capacity(kW) (kW) (A)@230V (W/W) (Nom. cooling) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min.
  • Page 148 Rated capacity output/ Total cooling Total power input Total current Combinations capacity(kW) (kW) (A)@230V (W/W) ENERGY SEER ENERGY (Nom. cooling) Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max. Min. Rated Max.
  • Page 149 Rated capacity output/ Total cooling Total power input Total current Combinations capacity(kW) (kW) (A)@230V (W/W) (Nom. cooling) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max. Min. Rated Max.
  • Page 150 4U85S2SR2FA combination and the data HEATING 9.6 Rated capacity Total heating Total power Total current Combinations output/kW capacity(KW) input(W) (A)@230V (W/W) (Nom. heating) ENERGY SCOP ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max.
  • Page 151 Rated capacity Total heating Total power Total current Combinations output/kW capacity(KW) input(W) (A)@230V (W/W) (Nom. heating) ENERGY SCOP ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max. Min. Rated Max.
  • Page 152 Rated capacity Total heating Total power Total current Combinations output/kW capacity(KW) input(W) (A)@230V (W/W) (Nom. heating) ENERGY SCOP ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max. Min. Rated Max.
  • Page 153 5U105S2SS2FA combination and the data COOLING 10.0 Rated capacity (kW) Total cooling capacity Total power input Total current Combinations (Nom. cooling) (kW) (kW) (A)@230V (W/W) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit...
  • Page 154 Rated capacity (kW) Total cooling capacity Total power input Total current Combinations (Nom. cooling) (kW) (kW) (A)@230V (W/W) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max.
  • Page 155 Rated capacity (kW) Total cooling capacity Total power input Total current Combinations (Nom. cooling) (kW) (kW) (A)@230V (W/W) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max.
  • Page 156 Rated capacity (kW) Total cooling capacity Total power input Total current Combinations (Nom. cooling) (kW) (kW) (A)@230V (W/W) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max.
  • Page 157 Rated capacity (kW) Total cooling capacity Total power input Total current Combinations (Nom. cooling) (kW) (kW) (A)@230V (W/W) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max.
  • Page 158 5U105S2SS2FA combination and the data HEATING 10.5 Rated capacity (kW) Total cooling capacity Total power input Total current Combinations (Nom. cooling) (kW) (kW) (A)@230V (W/W) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit...
  • Page 159 Rated capacity (kW) Total cooling capacity Total power input Total current Combinations (Nom. cooling) (kW) (kW) (A)@230V (W/W) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max.
  • Page 160 Rated capacity (kW) Total cooling capacity Total power input Total current Combinations (Nom. cooling) (kW) (kW) (A)@230V (W/W) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max.
  • Page 161 Rated capacity (kW) Total cooling capacity Total power input Total current Combinations (Nom. cooling) (kW) (kW) (A)@230V (W/W) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max.
  • Page 162 Rated capacity (kW) Total cooling capacity Total power input Total current Combinations (Nom. cooling) (kW) (kW) (A)@230V (W/W) ENERGY SEER ENERGY Comb. REMARKS LABEL (W/W) LABEL Unit Unit Unit Unit Unit Unit Unit Unit Unit Unit Min. Rated Max. Min. Rated Max.
  • Page 163: Performance Curve

    8. Performance Curve 3U55S2SR2FA 3U70S2SR2FA cooling capacity in relation to temperature 35000 indoor 30000 temperature 25000 WB./DB. 20000 22/30 15000 19/27 16/22 10000 14/20 5000 outdoor temperatureDB. outdoor temperatureDB. 3U55S2SR2FA 3U70S2SR2FA heating capacity in relation to temperature 40000 indoor temperature 35000 30000 30000...
  • Page 164 4U85S2SR2FA cooling capacity in relation to temperature 11000 Indoor temperature WB./DB. 10000 9000 8000 14/20 7000 16/22 19/27 22/30 6000 5000 Outdoor temperature DB. 4U85S2SR2FA heating capacity in relation to temperature 12000 Indoor temperatureD 11000 10000 9000 8000 7000 6000 5000 -15 -12.5 -10 -7.5...
  • Page 165 5U105S2SS2FA Heating capacity in relation to temperature 14000 13000 12000 11000 Indoor temp. (WB/DB) 20/14 10000 Indoor temp. (WB/DB) 22/16 9000 Indoor temp. (WB/DB) 27/19 8000 Indoor temp. (WB/DB) 30/22 7000 6000 -5/-6 10/7 15/10 Outdoor temperature DB. 5U105S2SS2FA Cooling capacity in relation to temperature 16000 14000 12000...
  • Page 166: Sound Pressure Level

    9. Sound Pressure level 9.1 3U55S2SR2FA...
  • Page 167 9.2 3U70S2SR2FA...
  • Page 168 9.3 4U75S2SR2FA 4U85S2SR2FA...
  • Page 169 9.4 5U105S2SS2FA...
  • Page 170: Installation Instructions

    10. Installation Instructions • Installation Precautions WARNING * The area of the room in which R32 refrigerant air conditioner is installed cannot be less than the minimum area specified in the table below, to avoid potential safety problems due to out-of-limit of refrigerant concentration inside the room caused used by leakage of refrigerant from reigeration system of the indoor unit.
  • Page 171 • Outdoor Unit Installation 1.Fixing and connection Note: a) Fire source shall be avoided within 3m around the place of installation. b) The leak detection equipment of refrigerant shall be placed at a low position in the outdoor, and shall be opened. 1) Fixing The support of the outdoor unit shall be fixed onto the wall surface, and then the outdoor unit shall be fixed onto the support horizontally.
  • Page 172 Test Run 1. Preparations (1) Check the power supply. (2) Check the equipment around, whether there is any combustible source, fire source, or heat source. (3) Power on is not allowed before all the installation operations are completed and before the leak detection is proven qualified.
  • Page 173 Maintenance Instructions Maintenance Precautions Precautions • For all the faults requiring welding the refrigeration pipelines or components inside the refrigeration system of R32 refrigerant air conditioners, maintenance at the user's site is never allowed. • For the faults requiring radical disassembly and bending operation of the heat exchanger, such as the replacement of the outdoor unit chassis and integral disassembly of the condenser, inspection and maintenance at the user's site are never allowed.
  • Page 174 Maintenance Site Requirements • The maintenance site shall be provided with favorable ventilation and must be flat. Arrangement of the maintenance site inside the basement is not allowed. • Welding zone and non-welding zone shall be divided at the maintenance site, and shall be clearly marked. A certain safety distance must be guaranteed between the two zones.
  • Page 175 Safety Principles • The power supply should be cut off before the maintenance. • During product maintenance, favorable ventilation shall be guaranteed at the maintenance site, and the close of all the doors/windows is not allowed. • Operation with open fire is not allowed, including welding and smoking. The use of phones is also not allowed. The user shall be informed that cooking with open fire is not allowed.
  • Page 176 Maintenance of Intrinsically Safe Elements • The intrinsically safe element refers to the components working continuously inside flammable gas without any risks. • Before any maintenance, leak detection and inspection on earthing reliability of the air conditioner must be carried out, to ensure no leakage and reliable earthing.
  • Page 177 Refrigerant Charging Procedures The following requirements are added as the supplementation of conventional procedures: • During the use of refrigerant charging tools, cross contamination of different refrigerants shall be avoided. The total length (including the refrigerant pipelines) shall be shortened as much as possible, to reduce the residual of refrigerant inside;...
  • Page 178 Recovey During maintenance or scrapping, the refrigerant inside the refrigeration system needs to be cleared. It is recommended that the refrigerant be cleared thoroughly. The refrigerant can only be charged into a dedicated cylinder, the capacity of which shall match with the refrigerant amount charged in the whole refrigeration system.
  • Page 179 Be sure to conform with the following important Safety Precautions. WARNING • If any abnormal phenomena is found(e. • Don't dismantle the outlet of the outdoor unit. g.smell of firing), please open the window and The exposure of fan is very dangerous which well ventilated the room immediately, then cut may harm human beings.
  • Page 180 WARNING • Have the unit professionally installed. • Be sure to carefully follow each step in this Improper installation by an unqualified person may handbook when installing the unit. result in water leak, electric shock, fire, or explosion. Improper installat on may result in water leak electr ic shock smoke or fire.
  • Page 181 Precautions for Handling Units for Use with R32 CAUTION Do not use the existing refrigerant piping Use a vacuum pump with a reverse-flow check valve. • If other types of valves are used, the vacuum pump • The old refrigerant and refrigerator oil in the existing oil will flow back into the refrigerant cycle and cause piping contain a large amount of chlorine, which will the refrigerator oil to deteriorate.
  • Page 182 Before Installing the Unit CAUTION Do not install the unit in a place where there is a When installing the unit in a hospital, take necessary possibility of flammable gas leak. measures against noise. • Leaked gas accumulated around the unit may start a fire or explosion.
  • Page 183 2. Tools and materials that may be used with R32 with some restrictions Tools/Materials Notes The Ones for HFC Type Refrigerant Gas leak detector Detection of Gas Leaks May be Used. May be Used if A Reverse Flow Vacuum Pump Vacuum Drying Check Adaptor is Attached.
  • Page 184 Vacuuming 1.Vacuum pump with check valve A vacuum pump with a check valve is required to prevent the vacuum pump oil from flowing back into the refrigerant circuit when the vacuum pump power is turned off (power failure). It is also possible to attach a check valve to the actual vacuum pump afterwards.
  • Page 185 Procedure for Selecting the Location 1) Choose a place solid enough to bear the weight and vibration of the unit, where the operation noise will not be amplified. 2) Choose a location where the hot air discharged from the unit or the operation noise, will not cause a nuisance to the neighbors of the user.
  • Page 186 7) Set the unit on mounting brackets or pad. To avoid the adverse effects of snow, ice and defrosting issues, install the unit on heat pump risers to ensure a sufficient height from the ground. In all cases, refer to local code for correct riser height.
  • Page 187 Installation Drawings of Indoor and Outdoor Units Do not connected the embedded branch piping and the outdoor unit when only carrying out piping work without connecting the indoor unit in order to add another indoor unit later. Make sure no dirt or moisture gets into either side of the embedded branch piping.
  • Page 188 Precautions on Installation • Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installed. • In accordance with the foundation drawing in fix the unit securely by means of the foundation bolts. (Prepare four sets of M8 or M10 foundation bolts, nuts and washers each which are available on the market.) •...
  • Page 189 Refrigerant Piping Work 1. Installing Outdoor Unit 1) When installing the outdoor unit, refer to "Precautions for Selecting the Location" and the "Indoor/Outdoor Unit Installation Drawings". 2)If drain work is necessary, follow the procedures below. 2. Drain Work 1) Use drain plug for drainage. 2) If the drain port is covered by a mounting base or floor surface, place additional foot bases of at least 30mm in height under the outdoor unit's feet.
  • Page 190 3.Refrigerant Piping Work 1). Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully with the torque wrenches. Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas. Flare Nut Tightening Torque Flare nut for ø...
  • Page 191 Disconnect charging hose from gas stop valve's service port, then fully open liquid and gas stop valves. (Do not attempt to turn valve rod beyond its stop.) Tighten valve caps and service port caps for the liquid and gas stop valves with a torque wrench at the specified torques.
  • Page 192 3) Use Separate Thermal Insulation Pipes For Gas And Liquid Refrigerant Pipe. Set exactly at the position shown below. Flare Tool for R32 Conventional Flare Tool Clutch-Type Wing-Nuttype Clutch-Type (Rigid-Type) (Imperial-Type) 8.Cutting and Flaring Work of Piping 0-0.5mm 1.0-1.5mm 1.5-2.0mm •...
  • Page 193 9.On Drainage • Please install the drain hose so as to be downward slope without fail. Please don't do the drainage as shown below. • Please pour water in the drain pan of the indoor unit, and confirm that drainage is carried out thoroughly to outdoor.
  • Page 194 2.Wiring Method • Wiring method of orbicular terminals For the connection wire with orbicular terminals, its wiring method is as shown in the right figure: remove the connecting screw, put the screw through the ring on the end of the wire, then connect to the terminal block and fasten screw.
  • Page 195 4. Wiring Method of Indoor Unit Loosen wire cover and connect the power cord and communication wire of indoor unit to the terminal correspondingly. Note: When connecting power cord to power supply terminal, please pay attention to the following items: •...
  • Page 196 Test Running • Before Starting the Test Running, Please Confirm the Following Works Have been Done Successfully. 1) Correct piping work 2) Correct wiring work 3) Correct match of indoor and outdoor unit 4) Proper recharge of refrigerant if needed. •...
  • Page 197 • Communication LED 3U55S2SR2FA and 3U70S2SR2FA are with 3 green LED that means 3 indoor units, and 4U85S2SR2FA with 4 green LED means 4 indoor units. 5U105S2SS2FA with 5 green LED means 5 indoor units.If one LED keep lighting that means the corresponding indoor unit has good communication with outdoor unit. If one LED is not lighting, that means there is no communication between indoor and outdoor.
  • Page 198: Part 6 Electric Control And Troubleshooting

    Part 6 Electric Control and Troubleshooting Part 6 Electric Control and Troubleshooting ......................195 1. Indoor PCB Photo..............................196 2. Outdoor unit PCB Photo, Dip Switch Setting and Function .................206 3. Diagnostic Code ..............................223 4. Trouble Shooting ..............................233...
  • Page 199: Indoor Pcb Photo

    1. Indoor PCB Photo PCB(0151800244A) AB25S2SC1FA AB35S2SC1FA AB50S2SC1FA PCB(0151800267) AD25S2SS1FA AD35S2SS1FA AD50S2SM1FA AD71S2SM1FA AD25S2SS2FA AD35S2SS1FA AD50S2SS1FA AD50S2SS2FA AD71S2SS1FA AD71S2SS2FA AD71S2SM3ERA AD90S2SM3FA AD105S2SM3FA...
  • Page 200 PCB (0151800208CE) AB71S2SG1FA PCB CODE 0151800106E AD125S2SM3FA AD140S2SM3FA...
  • Page 201 1.1 Indoor unit Dip Switch Setting AB25S2SC1FA AB35S2SC1FA AB50S2SC1FA PCB 0151800244A dip switch setting BM1 BM1-1 BM1-2 BM1-3 BM1-4 BM1-5 BM1-6 BM1-7 BM1-8 Description 1Hp Indoor Unit 1.2Hp Indoor Unit 2Hp Indoor Unit 3Hp Indoor Unit 3.5Hp Indoor Unit 4Hp Indoor Unit 5Hp Indoor Unit 6Hp Indoor Unit Room Card Unavailable(Default)
  • Page 202 AB71S2SG1FA PCB 0151800208CE dip switch setting SM1 SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6 SW1-7 SW1-8 Description AB71S2SG1FA Room Card Valid (Default) Room Card Invalid Cool and Heat (Default) Cool Only PCB 0151800208CE dip switch setting: Indoor unit address setting in wired controller group control BM3 (SW3) BM3-8 BM3-7 BM3-6...
  • Page 203 AD25/35/S2SS1FA AD35S2SS1FA AD50S2SM1FA AD71S2SM1FA AD25S2SS2FA AD35S2SS1FA AD50S2SS1FA AD50S2SS2FA AD71S2SS1FA AD71S2SS2FA AD71S2SM3ERA AD90S2SM3FA AD105S2SM3FA PCB 0151800267 dip switch setting BM1 BM1-1 BM1-2 BM1-3 BM1-4 BM1-5 BM1-6 BM1-7 BM1-8 Description 1Hp Indoor Unit 1.2Hp Indoor Unit 2Hp Indoor Unit 3Hp Indoor Unit 3.5Hp Indoor Unit 4Hp Indoor Unit 5Hp Indoor Unit...
  • Page 204 AD125S2SM3FA AD140S2SM3FA PCB code 0151800106E BM1 (1-ON, 0-OFF) Room Running Capacity (SW1-1→SW1-3) Unit Type card mode Description SW1-1 SW1-2 SW1-3 SW1-6 SW1-7 SW1-8 SW1-4 SW1-5 ADH105M1ERG ADH125M1ERG AD125S2SM3FA ADH140M1ERG AD140S2SM3FA Room card valid Room card invalid (default) Cool only Cool and heat (default) Medium ESP DUCT High ESP DUCT Wired controller communication address...
  • Page 205 1.2 Indoor unit Function 1.3.1 Sign Definition Indoor Outdoor Toci Outlet Thick Pipe Compressor Compressor Ambient Inlet Pipe Mid Coil Ambient Defrost Pipe of Heat Condenser Suction Discharging Temp Temp Temp Temp Temp Temp. Exchanger Temp. Temp. Temp. Tcomp1,2 Tset Temp.
  • Page 206 1.3.6 Control for Discontinuous Operation After the unit starts up in cooling/heating mode, in 5 minutes, the compressor run/stop will not be controlled by the room temp., but after changing the set temp., if compressor stop condition can be met, the system will stop compressor immediately.
  • Page 207 1.3.12 Compulsory Defrosting Operation A: After indoor receives the compulsory defrosting signal, it will send continously the signal to outdoor for 10 times, in this period, indoor unit will work normally and it will enter defrosting operation until it receives the enter-defrost signal from outdoor unit.
  • Page 208 C: Memory information: ON/OFF state, mode, fan speed, set temp., health, swing position; D: If the memory includes timer or sleep function, when being electrified again, timer and sleep will be cancelled; E: If the memory includes auto mode, when the jumper shows cooling only type, auto mode will change to cooling mode.
  • Page 209: Outdoor Unit Pcb Photo, Dip Switch Setting And Function

    2. Outdoor unit PCB Photo, Dip Switch Setting and Function 2.1 Outdoor unit PCB Photo PCB(0011800410RA) 1U71S2SG1FA Outdoor unit PCB Photo and Dip Swith Setting Model Power Module 1U71S2SG1FA 0011800410RA 0011800377C 3U52S2SR2FA 0151800364A 0011800377C 3U70S2SR2FA 0151800364A 0011800377C 4U75S2SR2FA 0151800364 0011800377A...
  • Page 210 PCB(0011800410RA) 1U71S2SG1FA Power module(0011800377C) 1U71S2SG1FA...
  • Page 211 PCB (0151800364A) 3U52S2SR2FA 3U70S2SR2FA Power Module (0011800377C) 3U52S2SR2FA 3U70S2SR2FA...
  • Page 212 PCB (0151800364) 4U75S2SR2FA 4U85S2SR2FA 5U105S2SS2FA Power Module (0011800377A) 4U75S2SR2FA 4U85S2SR2FA...
  • Page 213 2.2 Dip Switch Setting Outdoor main PCB 0151800364/0151800364A dip switch setting SW5 SW5-1 SW5-2 SW5-3 SW5-4 SW5-5 SW5-6 SW5-7 SW5-8 Description Heat Pump (Default) Cooling Only Heating Only Adjust by Machine Types Max Running Current:15A (Default) 3U55S2SR2FA 3U70S2SR2FA 4U75S2SR2FA 4U85S2SR2FA 5U105S2SS2FA Temperature Correction Invalid (Default) Temperature Correction Valid...
  • Page 214 2.3 Outdoor Unit Control Outdoor Frequency Control A.Compressor running frequency range: 1U: 30-91RPS 3U55: cooling--20~100RPS, heating---20~110RPS 3U75: cooling--20~100RPS, heating---20~110RPS The others: cooling--20~90RPS, heating---20~95RPS B.Defination of high-efficiency operation and its frequency control In order to meet the cooling request at a high ambient temperature and the heating request at low ambient temperature, we set the high-efficiency operation.
  • Page 215 Cooling Mode Indoor Modification Angle +50degree/60seconds, it Will Stop Until Up to the Max. Permitted Opening C< Discharging Temp. Angle C< Discharging Temp.<=105 C Keep the Angle <=98 5degree/60seconds, and Reduce to 0 Degree Gradually Heating Mode Indoor Modification Angle 10degree/60seconds, it Will Stop Until Up to the Max.
  • Page 216 Control of defrosting in heating In heating mode, defrosting temp. sensor will check the frosting condition of outdoor heat exchanger and make defrosting control. A: Enter condition: Unitary: After the unit is in heating for 10 minutes and compressor run for 45 minutes in all, according to check the defrosting temp.
  • Page 217 2.3.7 Defrosting operation flow chart: Unitary Beginning Inverter compressor Indicated FQY Defrosting FQY 85 Hz ( E) Soft startup 50HZ 32HZ Outdoor fan motor Send signal to indoor unit Auto 4-way valve Unload valve SV1 Auto 250pulse(E) PMV auto open angle Auto open angle Indoor fan motor Anti-cold air function...
  • Page 218 Defrosting Operation Flow Chart: Multi: Beginning Fixed frequency Indicated FQY 60s Defrosting FQY 80 Hz ( E) Soft startup Compressor Outdoor motor Send defrosting signal to indoor Auto 4-way valve 450-pulse 450-pulse 350-pulse(E) All EEVs Auto open angle Auto open angle All indoor motors ON Anti- cold air fun ction Frequency Control When Td is too High...
  • Page 219 Reduce FQY slowly 1HZ/10S 109℃ Remain FQY 105℃ Increase FQY slowly 1HZ/10S 95℃ Multi: If keeping for 10s, the unit stops, 3 minutes later, the unit can re-startup. If in 60 minutesthe unit occurs alarm for 3 times, the failure can be eliminated. 117℃...
  • Page 220 Keep for 5 seconds, stop to alarm, after 3-minute standby, the unit can restartup. In 60 minutes it occurs 3 times continously, unit will stop to alarm and the failure can be resumed after being ℃ electrified again. Reduce FQY rapidly 2HZ/S 68℃...
  • Page 221 Normal operation -25℃ Min. running FQY 20HZ -30℃ SV2 OFF & 20HZ -35℃ SV2 ON & 20HZ -40℃ Keep for 5 seconds, unit stops and alarm -45℃ occurs. 3 minutes later, restart up. If it occurs 3 times in 1 hour, it will always alarm and stop, electrify again and failure will be cleared.
  • Page 222 2.3.12 Oil return operation control Unitary: Entering condition 2.3.12 Oil return operation control When the compressor running frequency is lower than 58Hz continuously in all and outdoor Unitary: unit Tcm is lower than 50 degree for 5 hours, the system will enter oil return operation. In the A: Entering condition course of mode changeover, manual unit stop or protective unit stop, the time will be accumulative.
  • Page 223 Quit condition of oil return: Quit condition of oil return: 1 minutes later after oil return is over 1 minute later after oil return is over Td-Tcm > 30°C & Td‐Tcm>30℃ & Ts‐Tc>30℃ Ts-Tc > 30°C Tc<‐35℃ Ts-Tc < -35°C Max.
  • Page 224 Multi: D: Entering condition When the compressor running frequency is lower than 58Hz (E) continuously for 4 hrs, the system will enter oil return operation. In the course of mode changeover, manual unit stop or protective unit stop, the time will be accumulative.
  • Page 225 After oil return in cooling mode, the quit condition of refrigerant eliminated: 1 minute later after oil return is over Td Tc & ‐ >30°C Ts Tc2AVE ‐ >30°C Tc2AVE< 35 °C ‐ Max. 10 minutes Oil return procedure in heating mode: Send oil return signal oil return begins oil return over...
  • Page 226: Diagnostic Code

    3. Diagnostic Code AB25S2SC1FA AB35S2SC1FA AB50S2SC1FA INDOOR UNIT TROUBLE SHOOTING LED flash times Wired Contents of Possible reasons of indoor PCB controller Malfunction display LED5 LED1 Sensor disconected or brok- Malfunction of indoor en,or at wrong position,or unit ambient temper- short circuit ature sensor Malfunction of indoor...
  • Page 227 AB71S2SG1FA INDOOR UNIT TROUBLE SHOOTING LED flash times I.R . Contents of RECEIVER Possible reasons of indoor PCB Malfunction DIGITAL DISPLAY LED4 LED1 Sensor disconected or brok- Malfunction of indoor en,or at wrong position,or unit ambient temper- short circuit ature sensor Sensor disconected or brok- Malfunction of indoor...
  • Page 228 AB25S2SS2FA AD35S2SS2FA AD50S2SS1FA AD50S2SS2FA AD71S2SS1FA AD35S2SM3FA AD71S2SS2FA AD50S2SM3FA INDOOR UNIT TROUBLE SHOOTING LED flash times Wired Contents of Possible reasons of indoor PCB controller Malfunction display LED4 LED3 Sensor disconected or brok- Malfunction of indoor en,or at wrong position,or unit ambient temper- short circuit ature sensor Sensor disconected...
  • Page 229 AD50S2SM1FA AD71S2SM1FA LED flash times of indoor PCB Wired controller display Contents of Malfunction Possible reasons LED4 LED3 Malfunction of indoor unit Sensor disconected, or brok-en,or at ambient temper-ature wrong position, or short circuit sensor Malfunction of indoor unit Sensor disconected, or brok-en,or at piping temper-ature sensor wrong position, or short circuit EEPROM chip disconected or broken...
  • Page 230 AD71S2SM3FA AD90S2SM3FA AD105S2SM3FA INDOOR UNIT TROUBLE SHOOTING LED flash times of indoor PCB Wired controller display Contents of Malfunction Possible reasons LED4 LED3 Malfunction of indoor unit Sensor disconected, or brok-en,or at ambient temper-ature wrong position, or short circuit sensor Malfunction of indoor unit Sensor disconected, or brok-en,or at piping temper-ature sensor...
  • Page 231 AD125S2SM3FA AD125S2SM3FA INDOOR UNIT TROUBLE SHOOTING LED flash times Wired Contents of Possible reasons of indoor PCB controller Malfunction display LED4 LED3 Sensor disconected or brok- Malfunction of indoor en,or at wrong position,or unit ambient temper- short circuit ature sensor Sensor disconected or brok- Malfunction of indoor...
  • Page 232 1U71S2SG1FA Flash times of LED Touble descipion Analyze and diagnose on mainboard Eeprom failure Outdoor main board eeprom fail IPM failure IPMfailure Communication eror between main boarc and spdumodule SPDU Communicatior Comunication fail over 4min error High pressure protection System high pessure over 4. 15 Mpa...
  • Page 233 3U55S2SR2FA 3U70S2SR2FA 4U75S2SR2FA 4U85S2SR2FA 5U105S2SS2FA Diagnosis using the Numeral Light Indicator PRODUCT DIAGNOSIS PROCEDURE Code Diagnosis Code Diagnosis Faulty of outdoor unit EEPROM System high pressure switch off IPM overcurrent or short circuit System low pressure switch off Communication failure between Module and ECU System high pressure protection.Refrigerant overabundance, High condensing temp.
  • Page 234 Outdoor unit Trouble shooting Compact design 4-way Round way cassette--- cassette/Convertible unit/ indoor display outdoor Fault possible Duct unit--- indoor display error code use the timer reasons outdoor error code use the Wired controller and running lamp OR I.D. Wired controller Panel Wall timer and running lamp...
  • Page 235 Compact design 4-way Round way cassette--- cassette/Convertible indoor display outdoor unit/Duct unit--- indoor Fault possible reasons error code use the timer display outdoor error Wired controller and running lamp OR I.D. code use the timer and Wired controller Panel Wall Outdoor display(Decimal- PCB LED...
  • Page 236: Trouble Shooting

    4. Trouble Shooting [1] Outdoor EEPROM Failure if faulty disappears after powe on again Ckeck outdoor PCB, If faulty ,replace it. [2] IPM Over Current or Short Circuit Check if wire of electric box Correct the wiring due to diagram is correct , and if compressor wire is fixed well If compressor is...
  • Page 237 [4] Communication Failure Between Module Ans Ecu Check if wire between PCB and power module is Adjust communication wire abnormal Check if communication circuit of PCB is Replace PCB abnormal(if signal LED flashes abnormally) If power module is Replace power module abnormal Solve the failures due to relative information...
  • Page 238 [6] Voltage too High or Low Check if voltage of power Improve power supply circuit supply is normal Check if wiring of Correct the wiring due to diagram electric box is correct In operation, check power module voltage between Replace power module terminal P&N more than 390V or less than 160V Check rectifier, rector,...
  • Page 239 [8] Discharging Temperature Overheating Check if sensor is fixed well Reconnect Replace pressure switch If sensor resistor/ characteristic is proper Check the piping system Check if the system is clogged Charge refrigerant If the system is lack of refrigerant Check the piping system Check if stop valve is open Reconnet Check if the PMV coil is ok...
  • Page 240 [9] DC Fan Motor Failure Check if fan motor wires are Replace wire and test again conductive(to CN11 of PCB) Check if motor is Replace PCB running Power off and rotate fan Replace fan motor motor by hand to check if there is obviously friction Test the terminial...
  • Page 241 [10~13,28~36,38~41] Temperature Sensor Failure Check if the corresponding Replace it correctly by after-sales personnel on site. connector of sensor is normal Check if resistance characteristic of the Replace it correctly by after-sales personnel on site. sensor is normal Check if the temperature loop Replace it correctly by after-sales personnel on site.
  • Page 242 [17] 4-Way Valve Reversing Failure If connection between 4-way Reconnect valve and PCB is good If coil of 4-way valve Fix again or replace the sensor fixed well and if its characteristic is correct If system meets Check if compressor is operation condition of 4-way valve reversing: Pd- Ps>0.6Mpa...
  • Page 243 [18] Compressor Out Of Control Circuit Improve power supply circuit Check if voltage of power supply is normal Check if wire between Correct the wiring due to diagram power module and compressor are correct Replace power module If power module is normal If compressor is Repalce compressor normal(compressor coil...
  • Page 244 [20] Indoor Thermal Overload If sensor terminal is Reconnect fixed well If sensor resistor / Replace sensor characteristic is proper If indoor air passage is patency Modify air passage Charge refrigerant If system is lack of refrigerant Check the system piping If stop valve is open Reconnect If PMV coil is connection well...
  • Page 245 [21] Indoor Frosted If sensor terminal is Reconnect fixed well If sensor resistor / Replace sensor characteristic is proper If indoor air passage is patency Modify air passage If system is lack of refrigerant Charge refrigerant Check the system piping If stop valve is open Reconnect If EEV coil is connection well...
  • Page 246 [23] Module Thermal Overload If screw of module is fixed Correct the wire due to diagram well, Replace power module [24] Compressor Startup Failure Check if voltage of power Improve power supply circuit supply is normal Check if wire between Correct the wiring due to diagram power module and compressor are correct...
  • Page 247 [25] Module Input Over-Current Check if wire of electric box is correct, and if compressor wire Correct the wiring due to diagram is fixed well If compressor is Repalce compressor normal(compressor coil resistor, insulation) Replace power module If power module is normal Solve the failures due to relative information [26] MCU Reset...
  • Page 248 [27] Module Current Detect Circuit Failure Check if wire between IPM Correct the wire due to diagram and compressor is correct Replace power module...
  • Page 249 [42,43] High Or Low Pressure Switch Shut Off Failure Check if the pressure switch Reconnect connection is ok If the system pressure Replace pressure switch match the condition that pressure switch shut off Make pressure switch close,measure if terminal is conductive by multimeter Check if the system is Check the piping system...
  • Page 250 Trouble 1: No display on the operation panel Start Check if display Replace display panel and the panel and check unit matched again well If the red diode If the power Check the terminal and green diode terminal block is block and the on indoor PCB 220V input...
  • Page 251 Trouble 3: Communication failure between indoor and outdoor Start As per the wiring Re-wiring, and diagram, check if check again communication wiring is correct Check if the If the power cable and the PCB is faulty, communication port communication wire are replace and connecting to the too close, resulting in the...
  • Page 252 Trouble 8: Outdoor unit alarms sensor failure Start As per the wiring Re-fix the diagram, check if sensor and connection port check again between sensor and PCB is correct Check if the sensor is in open circuit or Check if the Replace sensor the connection port sensor resistor...
  • Page 253 Failure 11: Low pressure switch failure Reason: 1. Too low system pressure causes that the unit stops and the compressor protection works, the failure can be resumed. 2. Pressure switch wire is not fixed well or in open circuit. Start Check if the connector Check if the 2 If indoor fan motor...
  • Page 254 AD50S2SM3FA R25=10KΩ±3% Indoor Coil Temp. Sensor 0010401922 B25/50=3700K±3% R25=10KΩ±3% Defrost temperature sensor 0010401830A B25/50=3700K±9% R25=10KΩ±3% Outdoor ambient temperature sensor 0010401830A B25/50=3700K±9% 1U71S2SG1FA R80=50KΩ±3% Discharge temperature sensor 0010401830A B25/50=4450K±9% R25=10KΩ±3% Suction temperature sensor 0010401826 B25/50=3700K±9% R25=10KΩ±3% Gas Liquid Sensor 0150402454 3U55S2SR2FA B25/50=3700K±3%...
  • Page 255 R25=10KΦ±3% B25/50=3700K±3% R25=10KΦ±3% B25/50=3700K±3% T (°C) Rnom (KΦ) T (°C) Rnom (KΦ) 90.79 7.83 85.72 7.52 80.96 7.23 76.51 6.95 72.33 6.68 68.41 5.43 64.73 61.27 5.59 58.02 5.73 54.97 5.52 52.1 5.32 49.4 5.12 46.86 4.93 44.46 42.21 4.58 40.08 4.42 38.08...
  • Page 256 R25=23KΩ±3%B25/50=4200K±3% T (°C) Rnom (KΩ) T (°C) Rnom (KΩ) T (°C) Rnom (KΩ) T(°C) Rnom (KΩ) 149.07 20.94 4.52 1.32 140.35 20.00 4.36 1.28 132.20 19.10 4.21 1.25 124.59 18.24 4.05 1.21 117.46 17.43 3.91 1.18 110.79 16.66 3.77 1.14 104.54 15.93 3.64...
  • Page 257 Haier Commercial Air Condition Web: Http://www.haier.com Haier reserves the right to make change without any notice.