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Rotenso ANERU AN35X Service Manual

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ANERU
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IDU & ODU UNITS
SERVICE MANUAL
MODELS:
AN35X
AN50X
www.rotenso.com

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Summary of Contents for Rotenso ANERU AN35X

  • Page 1 ANERU IDU & ODU UNITS SERVICE MANUAL MODELS: AN35X AN50X www.rotenso.com...

  • Page 2: Table Of Contents

    Aneru AN Service Manual CONTENTS Part Ⅰ Technical Information…………………………………...….…………3 1. Important Notice……………………………………………………….………..…………..3 2. The Production Dimensions………………………………………………….…..……….3 3. Refrigeration cycle diagram……………………………………………………………….5 4. Electric Diagram……………………………………………………………….…….……..6 4.1 Wiring Diagram…………………………………………………………………………………….….……..…... 6 5. Electronic Controller Introduction…………………………………….……….…….…..8 5.1 Remote controller…………………………………………….…………………….……………..………. 8 5.2 Electronic controller…………………………………….………………….……………………..…..………..9 5.3 WIFI introduction……………………………………………….……………..…..…..…….…………….……..16 PART Ⅱ...

  • Page 3: Part Ⅰ Technical Information

    Aneru AN Service Manual Part Ⅰ Technical Information 1. Important Notice This service manual is intended for use by individuals possessing adequate backgrounds of electrical, electronic and mechanical experience. Any attempt to repair the appliance may result in personal injury and property damage.
  • Page 4 Aneru AN Service Manual Outdoor Unit: Outdoor unit Model AN35Xo 48.5 AN50Xo...

  • Page 5: Refrigeration Cycle Diagram

    Aneru AN Service Manual 3. Refrigeration cycle diagram Heat pump 9K,12K,18K Check valve Liquid side 2-way valve Capillary Heat exchange Heat exchange (Condenser) (Evaporator) Gas side 3-way valve 4-way valve Muffler Muffler Heating Cooling Compressor Liquid side 2-way valve Electronic expansion valve Heat exchange Heat exchange...

  • Page 6: Electric Diagram

    Aneru AN Service Manual 4. Electric Diagram 4.1 Wiring diagram MODEL： AN35Xi/o R15 INDOOR UNIT： θ PIPE TEMPERATURE REMITE MONITOR θ ROOM TEMPERATURE (OPTIONAL PART) SWING MOTOR 2 CN12 POSITION SWITCH WI-FI CN16 GNYE (OPTIONAL PART) GNYE DISPLAY CN8B OUTDOOR ELECTRICAL BOX EVAPORATOR UNIT...
  • Page 7 Aneru AN Service Manual MODEL： AN50Xi/o R15 INDOOR UNIT： θ PIPE TEMPERATURE REMITE MONITOR θ ROOM TEMPERATURE (OPTIONAL PART) SWING MOTOR 2 CN12 POSITION SWITCH WI-FI CN16 GNYE (OPTIONAL PART) GNYE DISPLAY CN8B OUTDOOR ELECTRICAL BOX EVAPORATOR UNIT GNYE GNYE SWING MOTOR 1 CN5-1 BK(WH)

  • Page 8: Electronic Controller Introduction

    Aneru AN Service Manual 5. Operation Details 5.1 Remote controller ON/OFF button To switch the conditioner on and off. MODE button To select the mode of operation SWING button To activate the swing of horizontal flap(up/down) or deactivate it. TEMP DOWN button Decrease the temperature or time by 0.5 unit.
  • Page 9 Aneru AN Service Manual Meaning of symbols on the liquid crystal display. FEEL mode indicator or AUTO COOLING indicator or COOL DEHUMIDIFYING indicator or DRY FAN ONLY OPERATION indicator or FAN HEATING indicator or HEAT SIGNAL RECEPTION indicator TIMER OFF indicator TIMER ON indicator AUTO FAN indicator LOW FAN SPEED indicator...

  • Page 10: Electronic Controller

    Aneru AN Service Manual 5.2 Electronic controller RT-------Room Temperature. IPT------Indoor Pipe (Coil) Temperature. ST------Indoor Setting Temperature. OPT---Outdoor Pipe Temperature. OAT---Outdoor Ambient Temperature. ODT---Outdoor Discharge Temperature. CRT---Compensated Room Temperature. IDU--- Indoor unit ODU---Outdoor unit. Note: When AC finishing installation, because of the air ventilation and the distance of temperature test sensor to different location of the house, the temperature for IDU PCB control need compensation.

  • Page 11: Dry Mode

    Aneru AN Service Manual delay for the motor should be less than 160s. 2). When switch on unit on cooling mode, ODU fan motor will delay 5s after compressor starts up. 4. When ODU failure or stops for protection, IDU works as preset. Anti-frosting protection Control the unit operation frequency and the frequency changing rate to achieve anti-frosting protection.
  • Page 12 Aneru AN Service Manual The compressor stops operation. 3). The compressor frequency control: Based on relation of RT & ST, and the changing speed of RT. 4). The compressor will also stop working while unit: a. switched off. b. under protection. c.

  • Page 13: Fan Mode

    Aneru AN Service Manual 1) Defrosting start up: Compressor stops working, and re-starts to working after 50s delay; 2) Conditions for quitting defrosting a. After defrosting 60s, and OAT≥12℃; or b. OAT＜－5℃, and OPT ≥8℃ for 80s continuously; or c. The defrosting for 10 min. When AC meet any of condition a, b or c, defrosting finish.

  • Page 14: Emergency Switch

    Aneru AN Service Manual 5.2.6 Timer The unit has times control, when the unit meet the timer preset, it will be switched on or off automatically. 1. TIMER ON 1). TIMER ON can be set only when the air conditioner is OFF. 2).
  • Page 15 Aneru AN Service Manual stop-working protection will be reset to zero and start a new counting process. The failure and times for protection will eliminate immediately once the unit to be switched off, on fan mode or changed to be heating mode from others. Note: If the defective failure can’t be recovered, the failure can’t eliminate even if operation mode changed.

  • Page 16: Wifi Introduction

    Aneru AN Service Manual mode. Note: If the defective failure can’t be recovered, the failure can’t eliminate even if operation mode changed. 5.2.11 Complementary 5.2.11.1 Energy saving (ECO) Function effective on Cooling and Heating mode only. On cooling mode, the set temperature range from 26℃ to 31℃,on heating mode, from 16℃ to 25℃. 5.2.11.2 TURBO Function effective on Cooling, Heating, Fan and Auto modes, and fan speed operates on highest.

  • Page 17: Smart Life

    Aneru AN Service Manual WIFI OPERATION MAUAL 5.3.1 Download and installation Customer can scan the QR in the user manual or from appliance APP store to download the APP and install it in the cell phone, while installation achieved, there would be an icon as picture created on the desktop.

  • Page 18: Part Ⅱ Installation And Maintenance

    Aneru AN Service Manual PART Ⅱ Installation and Maintenance 1. Notes for installation and maintenance Safety Precautions Important! Please read the safety of precautions carefully before installation and maintenance. The following contents are very important for installation and maintenance. Please follow the instructions bellow. ●...
  • Page 19 Aneru AN Service Manual Safety precautions for Installing and Relocating the unit. To ensure safety, please be mindful of the following precautions. Warnings When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant.
  • Page 20 Aneru AN Service Manual Where LFL is the lower flammable limit in kg/m , R290 LFL is 0.038kg/m , R32 LFL is 0.306kg/m For the appliances with a charge amount m1<M<m2: The maximum charge in a room shall be in accordance with the flowing: M =2.5×(LFL) ×h ×A...

  • Page 21: Installation Safety

    Aneru AN Service Manual refrigerant in order to ensure that the fire risk is reduced to minimum. 3) Installation Safety Installation Safety Principles Site Safety Open Flames Prohibited Ventilation Necessary Operation Safety Open Flames Prohibited Mind Static Electricity Must wear protective clothing and anti-static gloves Don`t use mobile phone Installation Safety ...

  • Page 22: Maintenance

    Aneru AN Service Manual It should be a special explosion-proof filling device; have certain precision and its filling deviation should be less than 5g. Filling Device It should be calibrated regularly; and its annual leak rate should not exceed 10g. Leak Detector A) The maintenance site should be equipped with a fixed-type combustible refrigerant concentration detector and connected to a safeguard alarm system;...
  • Page 23 Aneru AN Service Manual  Check the warning labels on the air conditioner whether are in good condition. It is necessary to replace the damaged or smeared warning labels. 3). Leak inspection before maintenance Before maintenance, use the leak detector or concentration detector (pump-type) recommended by the corresponding air conditioner manufacturer to check the air conditioner leak or not.
  • Page 24 Aneru AN Service Manual as possible in order to reduce the residual refrigerant inside such pipeline.  It is necessary to vertically place the refrigerant storage tanks.  It is necessary to ensure that the refrigerating system is in ground connection before the refrigerant is filled.

  • Page 25: Installation

    Aneru AN Service Manual residual combustible refrigerant gas from any area nearby and surrounding the leak point and use a handheld detector for detection and not clear the alarm until the concentration of refrigerant is zero. 2 Installation 2.1 Location Selection 2.1.1 Indoor Unit Location Selection ...

  • Page 26: Indoor Unit Installation

    Aneru AN Service Manual 2.2 Indoor Unit Installation 2.3 Outdoor Unit Installation 2.3.1 Service Space for Outdoor Unit NOTE: The minimum distance between the outdoor unit and walls described in the installation guide does not apply to airtight rooms. Be sure to keep the unit unobstructed In at least two of the three directions (Front, Left, Right).

  • Page 27: The Procedure Of Connecting Pipes

    Aneru AN Service Manual 2.3.3 Outdoor Unit Condensed Water Drainage (Optional) The condensed water and the ice formed in the outdoor unit during heating operation can be drained away throughthe drain pipe 1. Fasten the drain port in the 25mm hole placed in the part of the unit as shown in the picture. 2.
  • Page 28 Aneru AN Service Manual Flare dimension A (mm) Pipe diameter Flare shape 90 ° 4 1/4" (6.35) 3/8" (9.52) 12.0 12.4 R0.4~0.8 1/2" (12.7) 15.4 15.8 5/8" (15.9) 18.6 19.1 3/4" (19) 22.9 23.3 After flared the pipe, the opening part must be seal by end cover or adhesive tape to avoid duct ...
  • Page 29 Aneru AN Service Manual 2.4.13 Connect the Pipe to Indoor Unit and Outdoor Unit by Using Two Spanners. NOTE: Connect the copper pipes to the indoor unit first, then connect it to the outdoor unit. You should first connect the low-pressure pipe, then the high-pressure pipe. When connecting the flare nuts, apply a thin coat of refrigeration oil to the flared ends of the pipes.

  • Page 30: Vacuum Drying And Leakage Detection

    Aneru AN Service Manual 2.5 Vacuum Drying and Leakage Detection 2.5.1 Safety Precautions ● Use a vacuum pump with a gauge reading lower than -0.1 MPa and an air discharge capacity above 40L/min. ● The outdoor unit does not need vacuuming. DO NOT open the outdoor unit's gas and liquid stop valves. ●...

  • Page 31: Additional Refrigerant Charge

    Aneru AN Service Manual 2.5. 3 Leakage Detection 1).With leakage detection. Check if there is leakage with leakage detection. 2).With soap water. If leakage detection is not available, please use soap water for leakage detection. Apply soap water at the suspected position and keep the soap water for more than 3min. If there are air bubbles coming out of this position, there a leakage.

  • Page 32: Electricity And Wiring

    Aneru AN Service Manual 2.7.1.4 Installation Highlights of Insulation Construction Gas pipe and liquid pipe shall be insulated separately, if the gas pipe and liquid pipe were  insulated together; it will decrease the performance of air conditioner. Liquid pipe Insulation meterial Gas pipe The insulation material at the joint pipe shall be 5~10cm longer than the gap of the insulation material.

  • Page 33: Maintenance

    Aneru AN Service Manual 3. Maintenance 3.1 Failure code Code Reason Remark IDU & ODU Communication failure The IDU & ODU wiring connection correct? IDU Room Temperature sensor failure.（IDU IDU sensor and PCB. RT failure） IDU Coil temperature sensor failure.（IDU IPT IDU sensor and PCB.
  • Page 34 Aneru AN Service Manual PFC PROTECTION Please check the troubleshooting for detail. The Compressor lack of phase / Anti-phase Please check the troubleshooting for detail. PROTECTION. IPM Module temperature PROTECTION Please check the troubleshooting for detail. 4-Way Value reversing abnormal.. Please check the troubleshooting for detail.

  • Page 35: Trouble Shooting

    Aneru AN Service Manual 3.2 Trouble shooting 3.2.1 E0 ---IDU & ODU communication failure Start Display E0 IDU wiring Check and re- E0 disappear? connection correct ? connect Check communication Replace/ re- E0 disappear? wiring and the connection, connect in good condition? ODU wiring Check and re- E0 disappear?
  • Page 36 Aneru AN Service Manual 3.2.2 E1, E2 ---IDU Room temperature sensor and/or coil temperature sensor failure. Start Display E1or E2 Is the sensor well Re-connect connected to PCB E1/E2 disappear? Multi-meter check the Replace the sensor sensor, is it open or short circuit? The malfunction eliminated?
  • Page 37 Aneru AN Service Manual 3.2.3 E6----IDU ventilation failure (PG and DC fan motor only) Start Display E6 Turn the fan blades by hand while power-off condition Adjust the motor and blade Can the fan blades run assembly so that rotor can smoothly? run smoothly.
  • Page 38 Aneru AN Service Manual 3.2.4 E3, E7 or E8----ODU Coil temperature sensor, Ambient temperature sensor or Discharge temperature sensor failure. When any of the sensor resistance open or short circuit , unit will display failure code as E3/E7 or E8, IDU and ODU turns off.
  • Page 39 Aneru AN Service Manual 3.2.5 E9---ODU IPM /Compressor drive fault If unit have 6 times stopping works for IPM protection (P0) continuously, it will display E9 error, and unit can’t be recovered to operation, except press ON/OFF button. Display E9 Display F9 or FA first Replace ODU PCB then E9...
  • Page 40 Aneru AN Service Manual 3.2.6 EF---ODU DC fan motor failure Shut off Check the fan blade by Re install the DC motor hand, can it rotate freely Works normal? Fan motor well Re-connect connect to PCB Works normal? 1. For built-in control (5pins) motor: check the V =310V? Check the fan motor,...
  • Page 41 Aneru AN Service Manual 3.2.7 EU---ODU voltage test sensor failure After power relay works, when tested voltage effective value less than 50V for 3s continuously, unit will display EU. Start Display EU Test voltage btw ODU Check while voltage terminal L/N, more than become normal 50V~? Unit works?
  • Page 42 Aneru AN Service Manual 3.2.8 P0---IPM protection When overheat or overcurrent for IPM, AC unit will display P0protection. Display P0 Restart unit. It works normal? Wiring connection Re-connect U/V/W correct? P0 disappear? ODU fan motor no Replace ODU Can compressor works or too slowly? fan motor start up?

  • Page 43: Over / Under Voltage Protection

    Aneru AN Service Manual 3.2.9 P1--- Over / under voltage protection 1. Test voltage between L &N, When the power supply V＞AC260V or V＜AC150V, AC will display P1 protection, unit will recover back to previous status while V＞AC155V. 2. Test voltage on the big size electrolytic capacitor of ODU PCB, When DC busbar voltage V＞DC420V or V ＜DC150V, unit will recover back to previous status while DC190V＜V＜DC410V Display P1 Wait until the AC...
  • Page 44 Aneru AN Service Manual 3.2.10 P2---Over Current protection When the AC unit running current more than I , it will stop and display P2 protection. Note: for different AC model, I has difference valve. Display P2 ODU fan motor Replace fan motor works? P2 disappear? IDU filter or ODU...
  • Page 45 Aneru AN Service Manual 3.2.11 P4 ---ODU Discharge temperature overheating protection Display P4 ODU temperature Normal protection higher than 60℃? ODU location Adjust ODU Enough space for Unit operate? installation acceptable? ventilation? Condenser too Clean IDU filter or P4 disappear? dirty? or filter ODU condenser.
  • Page 46 Aneru AN Service Manual 3.2.12 P5---Sub-cooling protection on Cooling/Dry mode On Cooling or Dry mode, when IDU evaporator coil temperature IPT＜1℃ continuously for 3 min after compressor start up for 6 min, CPU will switch off outdoor unit and show P5 failure code. Display P5 Switch on unit after minutes...
  • Page 47 Aneru AN Service Manual 3.2.13 P6---Overheating protection on Cooling mode On Cooling or Dry mode, when ODU condenser coil temperature OPT≥62℃ , MCU will switch off outdoor unit and show P6 failure code. Display ODU fan motor Fan motor Replace fan motor works normal? broken? P6 disappear?
  • Page 48 Aneru AN Service Manual 3.2.14 P7---Overheating protection on Cooling mode On heating mode, when IDU evaporator coil temperature IPT≥62 ℃ , ODU PCB will switch off outdoor unit and show P7 failure code. Display P7 ODU fan motor Fan motor Replace fan motor works normal? broken?
  • Page 49 Aneru AN Service Manual 3.2.15 P8---Outdoor Overtemperature/Under-temperature protection When environment temperature as below condition, the compressor will stop working, after 200s delay, the IDU will show P8 failure code. (1). On Cooling or Dry mode: ODU ambient temperature: OAT＜-20℃ or OAT＞63℃; (2).
  • Page 50 Aneru AN Service Manual 3.2.16 F4---Cooling system Gas flow abnormal protection When compressor startup, unit will check the variation of IDU coil temperature. If there is mistake installer forgetting to open the 2-way or 3-way valve on ODU, the gas can’t flow in the cooling system, it will show F4 protection. Start Display F4 Check the 2-way...
  • Page 51 Aneru AN Service Manual 3.2.17 F6 The Compressor Lack of phase / Anti-phase protection. If ODU PCB can’t test one, or even three phase of compressor current, it will show F6 protection. Display F6 Check compressor Re-connect wiring connector, is it well connected? Problem solved? The Compressor...
  • Page 52 Aneru AN Service Manual 3.2.18 F7---Module temperature protection. IPM overtemperature protection, when IPM temperature more than 95℃, it will show F7. Display F7 Clean or adjust the gap IPM well contact Any dust or gap btw btw IPM and heat sink to heat sink? IPM &...
  • Page 53 Aneru AN Service Manual 3.2.19 F8---4-Way Value Reversing abnormal On heating mode, if IDU Coil temperature tested lower than Room temperature 5℃ or even more after compressor works for 8min, unit will show F8 code. Display F8 the 4-way valve wiring connection Re-connect correct?
  • Page 54 Aneru AN Service Manual 9.2.20 Fy--- Gas leakage protection After compressor works in high frequency for 9 min, if the temperature on IDU evaporator & ODU condenser has only a little variation comparing previous, but, the compressor discharge temperature on high level, then the unit will show Fy failure code.

  • Page 55: Exploded View

    Aneru AN Service Manual 4. Exploded view and parts list IndoorUnit: AN35Xi R15 Part No. Part Name Q’ty Remark 45014-001266 Front Panel 46601-000037 Face Frame Assembly 45008-000018 Downward Vane Assembly 45801-000100 Downward Vertical Vane 45002-000084 Downward Vertical Vane Bush 45008-000286 Downward Out Blow Casing 45008-000252 Air guide assembly...
  • Page 56 Aneru AN Service Manual 45801-000045 Upward vane connecting crank 45008-000218 Upward Out Blow Casing 45801-000071 Upward Vane 45008-000287 Air guide board bolt 22001-000494 Step Motor 45005-000179 Fixed seat with wind motor 45002-000088 Motor Vane Bush 45005-000331 Air Guide Splash motor cover 35010-000002 Display panel 41505-000323...
  • Page 57 Aneru AN Service Manual Outdoor Unit : AN35Xo R15 Part No. Part Name Q’ty Remark 41202-000216 Base 41208-000142 Partition plate 92014-000542 Compressor and accessories 92007-005836 4-way valve assembly 92008-000209 4-way valve 31201-001674 Outdoor PCB Assembly 42001-000038 Cable clamp 42001-000035 Cable clamp 11304-100004 Terminal 41205-000211...
  • Page 58 Aneru AN Service Manual IndoorUnit: AN50Xi R15 Part No. Part Name Q’ty Remark 45014-001266 Front Panel 46601-000037 Face Frame Assembly 45008-000018 Downward Vane Assembly 45801-000100 Downward Vertical Vane 45002-000084 Downward Vertical Vane Bush 45008-000286 Downward Out Blow Casing 45008-000252 Air guide assembly 45009-000038 Centrifugal Fan 45005-000276...
  • Page 59 Aneru AN Service Manual 45801-000071 Upward Vane 45008-000287 Air guide board bolt 22001-000494 Step Motor 45005-000179 Fixed seat with wind motor 45002-000088 Motor Vane Bush 45005-000331 Air Guide Splash motor cover 35010-000002 Display panel 41505-000323 Display Film 35006-000001 Buckle base 46701-000003 Buckle cover 45014-002709...
  • Page 60 Aneru AN Service Manual Outdoor Unit : AN50Xi R15 Part No. Part Name Q’ty Remark 41202-000252 Base 41208-000151 Partition plate 92014-000357 Compressor and accessories 92007-000967 4-way valve assembly 92008-000207 4-way valve 22011-000004 Inductor 31201-001558 Outdoor PCB assembly 42001-000038 Cable clamp 11304-100004 Terminal 41205-000184...

  • Page 61: Appendix

    Aneru AN Service Manual APPENDIX Appendix 1 The comparison table of Celsius-Fahrenheit temperature Fahrenheit Fahrenheit Fahrenheit diplay Fahrenheit Celsius diplay Fahrenheit Celsius diplay Fahrenheit Celsius temperature temperature temperature (℉) (℃) (℉) (℃) (℉) (℃) (℉) (℉) (℉) 60.8 69/70 69.8 78/79 78.8 62/63...

  • Page 62: Appendix 3 Thermistor Temperature Characteristics

    Aneru AN Service Manual D. Check 1) Compare the flared work with figure below. 2) If flare is noted to be defective, cut off the flared section and do flaring work again. Appendix 3 THERMISTOR TEMPERATURE CHARACTERISTICS 1). Indoor unit and outdoor exchange temperature and outside air temperature sensor temperature characteristics TEMP.
  • Page 63 Aneru AN Service Manual 74.960 78.334 81.708 6.315 6.413 6.511 0.959 1.000 1.041 70.848 73.973 77.098 6.046 6.143 6.240 0.927 0.967 1.007 66.983 69.877 72.771 6.046 6.143 6.240 0.895 0.935 0.975 63.350 66.030 68.710 5.790 5.886 5.982 0.866 0.905 0.944 59.933 62.415 64.897...
  • Page 64 Aneru AN Service Manual 43.748 46.232 48.850 4.533 4.630 4.727 0.814 0.846 0.879 41.517 43.836 46.279 4.362 4.457 4.552 0.791 0.822 0.854 39.415 41.581 43.861 4.199 4.292 4.386 0.769 0.799 0.830 37.432 39.456 41.585 4.042 4.133 4.225 0.746 0.776 0.807 35.581 37.473 39.462...
  • Page 65 Aneru AN Service Manual Outdoor unit discharge pipe sensor temperature characteristics TEMP. R min R(t) R max TEMP. R min R(t) R max TEMP. R min R(t) R max ℃ ℃ ℃ (k Ohm) (k Ohm) (k Ohm) (k Ohm) (k Ohm) (k Ohm) (k Ohm)
  • Page 66 Aneru AN Service Manual 32.787 36.154 39.430 3.955 4.136 4.317 0.754 0.794 0.833 31.403 34.491 37.580 3.821 3.993 4.164 0.733 0.772 0.811 30.001 32.914 35.826 3.693 3.855 4.018 0.713 0.751 0.789 28.670 31.417 34.163 3.569 3.723 3.878 0.694 0.731 0.769 27.404 29.995 32.586...
  • Page 68 INSTALLER STAMP www.rotenso.com...

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