INVENTOR P6MVI-12WFR Service Manual
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INVENTOR P6MVI-12WFR Service Manual

INVENTOR P6MVI-12WFR Service Manual

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AIR CONDITIONING SYSTEMS
WALL MOUNTED UNIT
• SERVICE MANUAL
MODELS:
P6MVI-09WFR/P6MVO-09
P6MVI-12WFR/P6MVO-12
P6MVI-18WFR/P6MVO-18
P6MVI-24WFR/P6MVO-24
ENGLISH

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Summary of Contents for INVENTOR P6MVI-12WFR

  • Page 1 AIR CONDITIONING SYSTEMS WALL MOUNTED UNIT • SERVICE MANUAL MODELS: P6MVI-09WFR/P6MVO-09 P6MVI-12WFR/P6MVO-12 P6MVI-18WFR/P6MVO-18 P6MVI-24WFR/P6MVO-24 ENGLISH...

  • Page 2: Table Of Contents

    CONTENTS 1. Precaution ..............................3 1.1 Safety Precaution .......................... 3 1.2 Warning ............................3 2. Function ................................ 6 3. Dimension ..............................7 3.1 Indoor Unit ............................. 7 3.2 Outdoor Unit ..........................11 4 .Refrigerant Cycle Diagram&Wiring diagram................... 15 5 .Installation Details ............................. 19 5.1 Wrench torque sheet for installation ...................

  • Page 3: Precaution

    Sharp edges could cause injury, be especially careful of the case edges and the fins on the 1. Precaution condenser and evaporator.  For installation, always contact the 1.1 Safety Precaution dealer or an authorized service center.   To prevent injury to the user or other Do not install the product on a people and property damage, the following defective installation stand.
  • Page 4 disconnect the power supply cable. A bad connection may cause water leakage.  There is risk of electric shock or fire. Keep level even when installing the  Stop operation and close the window product. in storm or hurricane. If possible, remove It can avoid vibration of water leakage.
  • Page 5 is operated.  Do not drink the water drained from the product.  Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury.  Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries.

  • Page 6: Function

    2. Function Model Names of Indoor/Outdoor Units Capacity Indoor units Outdoor units P6MVI-09WFR P6MVO-09 3D inverter P6MVO-12 P6MVI-12WFR P6MVI-18WFR P6MVO-18 P6MVI-24WFR P6MVO-24...

  • Page 7: Dimension

    3. Dimension 3.1 Indoor Unit Model P6MVI-09WFR P6MVI-09WFR P6MVI-09WFR P6MVI-09WFR 1106...
  • Page 8 For P6MVI-09WFR...
  • Page 9 For P6MVI-12WFR For P6MVI-18WFR...
  • Page 10 For P6MVI-24WFR...

  • Page 11: Outdoor Unit

    3.2 Outdoor Unit...
  • Page 12 For P6MVO-09, 779 W3 487 W1 300 D 770 W 70 W2 25 B1 61.5 A2 12 A1...
  • Page 13 For P6MVO-12, P6MVO-18, 815 W3 514 W1 333 D 800 W 70 W2 62 B1 D2 D3 20 A1 61.6 A2...
  • Page 14 For P6MVO-24...

  • Page 15: Refrigerant Cycle Diagram&Wiring Diagram

    OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) T1 Room temp. sensor T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE ACCUMULATOR COOLING COMPRESSOR HEATING P6MVI-09WFR, P6MVI-12WFR, P6MVI-18WFR, P6MVI-24WFR...
  • Page 16 16022000020169 P6MVO-09, P6MVO-12,...
  • Page 17 P6MVO-18, P6MVO-24...

  • Page 19: Installation Details

    5 .Installation Details 5.1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque inch N.cm N.cm Ф6.35 1500(153kgf.cm) 1600(163kgf.cm) Ф9.52 2500(255kgf.cm) 2600(265kgf.cm) Ф12.7 3500(357kgf.cm) 3600(367kgf.cm) Ф15.9 4500(459kgf.cm) 4700(479kgf.cm) Ф19 6500(663kgf.cm) 6700(683kgf.cm) 5.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Rated current of appliance Nominal cross-sectional area (mm²...

  • Page 20: Pipe Length And The Elevation

    Pipe size Model length Elevation Length refrigerant Liquid B (m) A (m) (g/m) P6MVI-09WFR + 3/8’’ 1/4’’ P6MVO-09 (Ф6.35) (Ф9.52) P6MVI-12WFR + 3/8’’ 1/4’’ P6MVO-12 (Ф6.35) (Ф9.52) P6MVI-18WFR + 1/4’’ 1/2’’ P6MVO-18 (Ф12.7) (Ф6.35) P6MVI-24WFR + 3/8’’ 5/8’’ P6MVO-24 (Ф15.9) (Ф9.52)

  • Page 21: Installation For The First Time

    connection to the vacuum pump. 5.4 Installation for the first time 4) Fully open the handle Lo of the manifold Air and moisture in the refrigerant system have valve. undesirable effects as below: 5) Operate the vacuum pump to evacuate. ●...

  • Page 22: Adding The Refrigerant After Running The System For Many Years

    3). Air purging. up to ensure the liquid charge. Open the valves on the charging cylinder and the 2). Purge the air from the charge hose. charge set. Purge the air by loosening the flare Open the valve at the bottom of the cylinder nut on the 2-way valve approximately 45’...

  • Page 23: Re-Installation While The Indoor Unit Need To Be Repaired

    purge the air (be careful of the liquid Open the handle Lo valve of the manifold valve refrigerant). slightly to purge air from the charge hose for 5 3) Put the charging cylinder onto the electronic seconds and then close it quickly. scale and record the weight.

  • Page 24: Re-Installation While The Outdoor Unit Need To Be Repaired

    discharge the refrigerant by loosening the flare nut on the 2-way valve approximately 45’ until the gauge indicates 0.3 to 0.5 Mpa. 6). Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems.
  • Page 25 cap to a torque of 18N.m. Be sure to check for gas leakage...

  • Page 26: Disassemble Guide

    6. Disassemble Guide 6.1 How to Remove the filter Step1: Put your hands at A and B, lift the filter a little to loosen the fastener Step2: Pull the filter gently along the horizontal direction. Step3: Pull out the filter. 6.2 How to Remove the horizontal louver Step1: Open the horizontal louver ,push the locker...
  • Page 27 How to hold the indoor for piping connection Step1: Open the screw caps A and B, remove the two screws. Step2: Open the panel assembly, move the slider to fix the panel. Step3: Press the locker A and B, to lose the indoor from the installation plate Step4: Unfold the supporter of Installation plate, then...
  • Page 28 6.4 How to Remove the panel assembly Step1: Open the screw caps A and B, remove the two screws. Step2: Open the panel assembly, loosen the display board connector. Step3: Pull the panel assembly along the direction indicated in right image to remove it.
  • Page 29 6.5 How to Remove the PCB Step1: Press A to remove the terminal cover. Step2: Remove screw B to remove the cover of the electronic control box . Step3: Then you can remove the PCB. Note: It is not necessary to remove the panel to remove the PCB.
  • Page 30 6.7 How to Remove the Chassis assembly CAUTION: Because the 24K indoor unit is relatively large and heavy, it must have two persons to implement the following steps. Step1: Remove the left and right pipe cover. Step2: Remove the 5 screws A,B,C,D,E remove support part F and G.
  • Page 31 Remove Evaporator assembly CAUTION: Because the 24K indoor unit is relatively large and heavy, it must have two persons to implement the following steps. Step1: Remove the Electric control box. Step2: Remove the Chassis assembly Step3: Unfold the Pipe clamp board C, remove screw A and B.

  • Page 32: Operation Characteristics

    7. Operation Characteristics Mode Cooling operation Heating operation Drying operation Temperature Room temperature 17℃~32℃ 0℃~30℃ 10℃~32℃ (62℉~90℉) (32℉~86℉) (50℉~90℉) Outdoor temperature 0℃~50℃ -15℃~30℃ 0℃~50℃ (32℉~122℉) (5℉~86℉) (32℉~122℉) -15℃~50℃ (5℉~122℉) (For the models with low temperature cooling system) CAUTION: 1. If the air conditioner is used beyond the above conditions, certain safety protection features may come into operation and cause the unit to operate abnormally.

  • Page 33: Electronic Function

    Dispalys ‘ ’ for three seconds when Fresh, 8. Electronic function Swing, Turbo or Silence feature is cancelled. 8.1 Abbreviation Dispalys ‘ ’ under deforsting operation. T1: Indoor room temperature Dispalys ‘ ’ when anti-cold air feature is T2: Coil temperature of evaporator activated under heating mode.

  • Page 34: Main Protection

    8.3 Main Protection This function is only active in cooling mode. It can better prevent the compressor being 8.3.1 Three minutes delay at restart for damaged by refrigerant leakage or compressor compressor overload. Less than 1 minute delay for the 1 time Open condition: stand-up and 3 minutes delay for others.

  • Page 35: Operation Modes And Functions

    8.4 Operation Modes and Functions 8.4.1 Fan mode ( 1) Outdoor fan and compressor stop. (2) Temperature setting function is disabled, and no setting temperature is displayed. (3) Indoor fan can be set to high/med/low/auto. (4) The louver operates same as in cooling mode.
  • Page 36 8.4.3.3 Indoor fan running rules When the compressor is on, the indoor fan can Decrease be set to high/med/low/auto/mute. Hold When indoor unit coil temp. is low, the anti-cold air function will start and indoor fan motor will Resume run at low speed, the speed can’t be changed ,when the temp.
  • Page 37 keep running, indoor and outdoor motor will stop, Heating*: For cooling only models, they will run defrost lamp of the indoor unit will be lighted at fan speed Indoor fan will run at auto fan of the relevant “ .” Will be displayed. mode.
  • Page 38 hour, 2 hours later the setting temperature and finally runs in fan only again. This function stops rising and indoor fan is fixed at low speed. can keep the inside of indoor unit dry and (Anti-cold wind function has the priority). prevent breeding of mold.
  • Page 39 8.4.14 Easy control(optional) For AE series，On-off port, XYE port, WIFI， wired controller(5-cored) can be chosen at the same time. Non-polar wired controller,4-cored wired controller, and central controller are mutually exclusive.
  • Page 40 8.4.15 Point check function Press the LED DISPLAY or LED or MUTE button of the remote controller three times, and then press the AIR DIRECTION or SWING button three times in ten seconds, the buzzer will keep ring for two seconds.
  • Page 41 When the AC enter into the information enquiry status, it will display the code value in the next 25s details are as follows. Enquiry Display value Meaning Remark information T1,T2,T3,T4, -1F,-1E,-1d,-1c,- -25,-24,-23,-22,-21,-2 1. All the displaying temperature is actual T2B,TP,TH, 1b,-1A value.

  • Page 42: Multi-Function Board Instruction (This Multi-Function Board Is Optional)

    8.5 Multi-function board instruction (This multi-function board is optional) 8.5.1. Function The multi-function board receives the signal of 4-cored wired controller(central controller),Non-polar wired controller and CP remote on-off signal( ON-OFF command signal) . Then converting it to the communication signal to the main control board. The multi-function board can output Alarm signal.
  • Page 43 Note: The network address are the Dip-switch F1 address plus Rotary switch ENC3 address. 8.5.4.2 If it receives the network address set by remote controller, the network address will be changed .If it receives the cancel signal of network address set by remote controller, the network address will be disposed according to the setting of Dip-switch F1 and Rotary switch ENC3.
  • Page 44 8.5.7.2 Connected to Non-poplar wired controller Note: It must use shield cables to connect with Non-poplar wired controller. The length should not exceed 50m.

  • Page 45: Troubleshooting

    9. Troubleshooting Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) For other models, please connect discharge resistance (approx.100Ω 40W) or soldering iron (plug) between +, - terminals of the electrolytic capacitor on the contrary side of the outdoor PCB.

  • Page 46: Indoor Unit Error Display

    9.1 Indoor Unit Error Display Operation Timer lamp Display LED STATUS lamp ☆ 1 time Indoor unit EEPROM parameter error ☆ 2 times Indoor / outdoor units communication error ☆ 4 times Indoor fan speed has been out of control Indoor room temperature sensor T1 open circuit or short ☆...

  • Page 47: Trouble Shooting

    9.2 Trouble shooting 9.2.1 EEPROM parameter error diagnosis and solution(E0/F4) E0/F4 Error Code Malfunction decision Indoor or outdoor PCB main chip does not receive feedback conditions from EEPROM chip. Supposed causes Installation mistake ● PCB faulty ● Trouble shooting: Power off, then restart the unit 2 minutes later.
  • Page 48 9.2.2 Indoor / outdoor unit’s communication diagnosis and solution(E1) Error Code Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions seconds and this condition happens four times continuously. Supposed causes Wiring mistake ● Indoor or outdoor PCB faulty ●...
  • Page 49 Remark: Use a multi meter to test the resistance of the reactor which does not connect with capacitor. The normal value should be around zero ohm. Otherwise, the reactor must have malfunction and need to be replaced.
  • Page 50 9.2.3 Fan speed has been out of control diagnosis and solution(E3) E3/F5 Error Code Malfunction decision When indoor fan speed keeps too low (300RPM) for certain time, conditions the unit will stop and the LED will display the failure. Supposed causes Wiring mistake ●...
  • Page 51 Index1: 1:Indoor or Outdoor DC Fan Motor(control chip is in fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must has problems and need to be replaced.
  • Page 52 9.2.4 Refrigerant Leakage Detection diagnosis and solution(EC) Error Code Malfunction decision Define the evaporator coil temp.T2 of the compressor just starts conditions running as Tcool. In the beginning 8 minutes after the compressor starts up, if T2 ＜Tcool－2℃ does not keep continuous 4 seconds and compressor running frequency higher than 50Hz does not keep continuous 3 minutes, and this situation happens 3 times, the display area will show “EC”...
  • Page 53 9.2.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5) E4/E5/F1/F2/F3 Error Code Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, conditions the LED will display the failure. Supposed causes Wiring mistake Sensor faulty PCB faulty Trouble shooting:...
  • Page 54 9.2.6 Overload current protection diagnosis and solution(F0) Error Code Malfunction decision An abnormal current rise is detected by checking the specified conditions current detection circuit. Supposed causes Power supply problems. ● System blockage ● PCB faulty ● Wiring mistake ● Compressor malfunction ●...
  • Page 55 9.2.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0) Error Code Malfunction decision When the voltage signal that IPM send to compressor drive chip is abnormal, the display LED will show “P0” and AC will turn off. conditions Supposed causes Wiring mistake ●...
  • Page 56  IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N. Digital tester Normal resistance value Digital tester Normal resistance value (+)Red...
  • Page 57 9.2.8 Over voltage or too low voltage protection diagnosis and solution(P1) Error Code Malfunction decision An abnormal voltage rise or drop is detected by checking the conditions specified voltage detection circuit. Supposed causes Power supply problems. ● System leakage or block ●...
  • Page 58 9.2.9 High temperature protection of compressor top diagnosis and solution(P2) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the failure. conditions Supposed causes Power supply problems. ● System leakage or block ● PCB faulty ●...
  • Page 59 9.2.10 Inverter compressor drive error diagnosis and solution(P4) Error Code Malfunction decision An abnormal inverter compressor drive is detected by a special conditions detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on. Supposed causes Wiring mistake ●...
  • Page 60 Main parts check 1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(T5) sensor. Measure the resistance value of each winding by using the multi-meter.
  • Page 61 Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (° C--K) ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148...
  • Page 62 Appendix 2 Temperature Sensor Resistance Value Table for T5 (° C --K) ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm 542.7 68.66 13.59 3.702 511.9 65.62 13.11...
  • Page 63 2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value ASN98D22UFZ ASM135D23UFZ ATF235D22UMT Blue - Red 1.57Ω 1.75Ω 0.75Ω Blue - Black (20℃/68℉) (20℃/68℉) (20℃/68℉) Red - Blue...
  • Page 64 AIR CONDITIONING SYSTEMS wall mounted unit Scan here to download the latest version of this manual. Σαρώστε εδώ για να κατεβάσετε την τελευταία έκδοση του εγχειριδίου.

This manual is also suitable for:

P6mvi-09wfrP6mvi-18wfrP6mvi-24wfrP6mvo-09P6mvo-12P6mvo-18 ... Show all

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