INVENTOR P9VI32-09WF Service Manual
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INVENTOR P9VI32-09WF Service Manual

Air conditioning systems wall mounted unit
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AIR CONDITIONING SYSTEMS
WALL MOUNTED UNIT
• SERVICE MANUAL
MODELS:
P9VI32-09WF/ P9VO32-09
P9VI32-12WF/ P9VO32-12
P9VI32-18WF/ P9VO32-18
P9VI32-24WF/ P9VO32-24
ENGLISH

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Summary of Contents for INVENTOR P9VI32-09WF

  • Page 1 AIR CONDITIONING SYSTEMS WALL MOUNTED UNIT • SERVICE MANUAL MODELS: P9VI32-09WF/ P9VO32-09 P9VI32-12WF/ P9VO32-12 P9VI32-18WF/ P9VO32-18 P9VI32-24WF/ P9VO32-24 ENGLISH...

  • Page 2: Table Of Contents

    CONTENTS 1. Precaution ..............................1 1.1 Safety Precaution .......................... 1 1.2 Warning ............................1 2 Information servicing ........................... 3 3. Model list ..............................8 4. Dimension ..............................9 4.1 Indoor Unit ............................. 9 4.2 Outdoor Unit ..........................12 5. Refrigerant Cycle Diagram ........................16 6 Installation Details ............................

  • Page 3: Precaution

    cable. There is risk of fire or electric shock. 1. Precaution  Do not install, remove, or reinstall the unit by yourself (customer). 1.1 Safety Precaution There is risk of fire, electric shock, explosion,  To prevent injury to the user or other or injury.
  • Page 4   Do not use the product in a tightly Always check for gas (refrigerant) closed space for a long time. leakage after installation or repair of Oxygen deficiency could occur. product.  When flammable gas leaks, all naked Low refrigerant levels may cause failure of flames shall be removed or extinguished.

  • Page 5: Information Servicing

    Clean the filter every two weeks or more of work being carried out. Work in confined often if necessary. spaces shall be avoided. The area around the A dirty filter reduces the efficiency of the air work space shall be sectioned off. Ensure that conditioner and could cause product the conditions within the area have been malfunction or damage.
  • Page 6 atmosphere. sparking;  8. Checks to the refrigeration equipment that there no live electrical components and Where electrical components being wiring are exposed while charging, recovering changed, they shall be fit for the purpose and to or purging the system; ...
  • Page 7 Replace components only with parts specified (OFN) shall then be purged through the by the manufacturer. Other parts may result system both before and during the brazing in the ignition of refrigerant in the atmosphere process. from a leak. 15. Removal and evacuation 12.
  • Page 8 earthed prior to charging the system with i) Do not exceed the maximum working refrigerant. pressure of the cylinder, even temporarily.  Label the system when charging is complete j) When the cylinders have been filled correctly  (if not already). and the process completed, make sure that ...
  • Page 9 it is in satisfactory working order, has been properly maintained and that any associated electrical components are sealed to prevent ignition in the event of a refrigerant release. Consult manufacturer if in doubt.  The recovered refrigerant shall be returned ...

  • Page 10: Model List

    3. Model list Model Names of Indoor/Outdoor Units Capacity Indoor units Outdoor units P9VI32-09WF P9VO32-09 Passion ECO P9VI32-12WF P9VO32-12 P9VI32-18WF P9VO32-18 P9VI32-24WF P9VO32-24...

  • Page 11: Dimension

    4. Dimension 4.1 Indoor Unit Model P9VI32-09WF P9VI32-12WF P9VI32-18WF P9VI32-24WF 1106...

  • Page 14: Outdoor Unit

    4.2 Outdoor Unit M o r e t h a n 3 0 c m M o r e t h a n 6 0 c m ( S e r v ic e s p a c e ) M o r e t h a n 3 0 c m M o r e t h a n 6 0 c m M o r e t h a n 2 0 0 c m...
  • Page 15 7 7 9 W 3 4 8 7 W 1 3 0 0 D 7 7 0 W 7 0 W 2 2 5 B 1 6 1 . 5 A 2 1 2 A 1...
  • Page 16 8 1 5 W 3 5 1 4 W 1 3 3 3 D 8 0 0 W 7 0 W 2 6 2 B 1 2 0 A 1 6 1 . 6 A 2...

  • Page 18: Refrigerant Cycle Diagram

    5. Refrigerant Cycle Diagram INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE T3 Condenser temp. sensor CAPILIARY TUBE HEAT EXCHANGE HEAT (EVAPORATOR) T4 Ambient T1 Room temp. EXCHANGE temp. sensor sensor (CONDENSER) T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE Accumulator...

  • Page 19: Installation Details

    6 Installation Details 6.1 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) 6.2 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

    Standard Max. Max. Additional Pipe size Model length Elevation Length refrigerant Liquid B (m) A (m) (g/m) 3/8’’ 1/4’’ P9VI32-09WF/ P9VO32-09 (Ф6.35) (Ф9.52) 3/8’’ 1/4’’ P9VI32-12WF/ P9VO32-12 (Ф6.35) (Ф9.52) 1/2’’ 1/4’’ P9VI32-18WF/ P9VO32-18 (Ф12.7) (Ф6.35) 3/8’’ 5/8’’ P9VI32-24WF/ P9VO32-24 (Ф15.9) (Ф9.52)

  • Page 21: Installation For The First Time

    4) Fully open the handle Lo of the manifold 6.4 Installation for the first time valve. Air and moisture in the refrigerant system have 5) Operate the vacuum pump to evacuate. undesirable effects as below: 6) Make evacuation for 30 minutes and check ●...

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

    valve at the bottom of the cylinder. Make the purge the air (be careful of the liquid cylinder bottom up to ensure the liquid charge. refrigerant). 2). Purge the air from the charge hose. 3) Put the charging cylinder onto the electronic Open the valve at the bottom of the cylinder scale and record the weight.

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

    Open the handle Lo valve of the manifold valve should be pumped 20 minutes more. If the pressure can’t achieve -0.1Mpa after slightly to purge air from the charge hose for 5 seconds and then close it quickly. pumping 50 minutes, please check if there 4).
  • Page 24 gauge needle does not move (approximately 5 the hose. minutes after turning off the vacuum pump). 6). Mounted the valve stem caps and the service 5).Disconnect the charge hose from the vacuum port pump. Use torque wrench to tighten the service port cap 2.

  • Page 25: Disassemble Guide

    7. Disassemble Guide 7.1 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. 7.2 How to Remove the horizontal louver Step1: Open the horizontal louver ,push the locker...
  • Page 26 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 27 7.4 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 28 7.5 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 29 7.7 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 30 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 31: Wiring Diagram

    8. Wiring Diagram 8.1 Indoor Unit P9VI32-09WF, P9VI32-12WF, P9VI32-18WF, P9VI32-24WF...

  • Page 32: Outdoor Unit

    8.2 Outdoor Unit P9VO32-09, P9VO32-12...
  • Page 33 P9VO32-18, P9VO32-24...

  • Page 34: Operation Characteristics

    9. 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 35: Electronic Function

    Dispalys ‘ ’ for three seconds when Fresh, 10. Electronic function Swing, Turbo or Silence feature is cancelled. 10.1 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 36: Main Protection

    function. 10.3 Main Protection 10.3.6 Compressor preheating functions 10.3.1 Three minutes delay at restart for Preheating permitting condition: compressor When T4(outdoor ambient temperature)＜3° C, Less than 1 minute delay for the 1 time the preheating function will be activated. start-up and 3 minutes delay for others. 10.3.7 Sensor protection at open circuit and 10.3.2 Temperature protection of breaking disconnection.

  • Page 37: Operation Modes And Functions

    The outdoor unit will be run at different fan M+(M+=M+Z) M(M=M) speed according to T4. M-(M-=M-Z) For different outdoor units, the fan speeds are L+(L+=L+D) different. L(L=L) For P9VI32-09WF/P9VO32-09, P9VI32-12WF/ L-(L-=L-D) P9VO32-12 models, The fan speed is controlled by T4 and...
  • Page 38 The auto fan acts as below rules: 10.4.3 Heating Mode 10.4.3.1 Compressor running rules T 1 - T S When T1-Ts>ΔT, the compressor will stop, <ΔT-1，the compressor will be on. when T1-T ΔT is the programmed parameter of temperature compensation. When the AC run in mute mode, the compressor will run with low frequency.
  • Page 39 When the compressor is on, the indoor fan can stop, defrost lamp of the indoor unit will be be set to high/med/low/auto/mute. lighted “ .” will be displayed. When indoor unit coil temperature is low, the anti-cold air function will start and indoor fan If any one of the following items is satisfied, the motor will run at low speed, the speed can’t be defrosting will finish and the machine will turn to...
  • Page 40 stop. Forced auto mode: The action of forced auto mode is the same as 10.4.4 Auto-mode normal auto mode with 24℃ setting This mode can be chosen with remote temperature. controller and the setting temperature can be When AC receives signals, such as switch on, changed between 17°...
  • Page 41 restarts. change information from remote controller signal, but it will not affected by the setting 10.4.9 Refrigerant Leakage Detection temperature. With this new technology, the display area will When the unit is running with follow me show “EC” when the outdoor unit detects function, if the PCB doesn’t receive any signal refrigerant leakage.
  • Page 42 10.4.15 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 43 Reserve Reserve Reserve When the AC enter into the information enquiry status, it will display the code value in the next 25s , the 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 44 Reserve 5~25...

  • Page 45: Multi-Function Board Instruction (This Multi-Function Board Is Optional)

    10.5 Multi-function board instruction (This multi-function board is optional) 10.5.1. 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 46 Note: The network address are the Dip-switch F1 address plus Rotary switch ENC3 address. 10.5.4.2 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 47 Note: It must use shield cables to connect with Non-poplar wired controller. The length should not exceed 50m.

  • Page 48: Troubleshooting

    11. 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 49: Indoor Unit Error Display

    11.1 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 50: Trouble Shooting

    11.2 Trouble shooting 11.2.1 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 51 11.2.2 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 52 Remark: Use a multimeter to test the DC voltage between 2 port and 3 port of outdoor unit. The red pin of multimeter connects with 2 port while the black pin is for 3 port. When AC is normal running, the voltage is moving alternately as positive values and negative values...
  • Page 53 11.2.4 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 54 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 55 11.2.4 Refrigerant Leakage Detection diagnosis and solution(EC) Error Code Malfunction decision Define the evaporator coil temperatureT2 of the compressor just conditions starts 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 56 11.2.5 Open circuit or short circuit of temperature sensor diagnosis and solution (E4/E5/F1/F2/F3) 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 ●...
  • Page 57 11.2.6 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 58 11.2.7 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 59  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 60 11.2.8 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 61 11.2.9 High temperature protection of IPM module diagnosis and solution (P2) Error Code Malfunction decision If the temperature of IPM module is higher than limited value, the conditions LED will display the failure. Supposed causes IPM radiator problem ● PCB faulty ●...
  • Page 62 11.2.10 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 63 11.2.11 Indoor PCB /Display board communication error (E7) Error Code Malfunction decision Indoor PCB does not receive feedback from Display board. conditions Supposed causes Wiring mistake ● PCB faulty ● Display board malfunction ● Trouble shooting: Power off, then restart the unit 2 minutes later.Is it still displaying the error code? Check the wirings...
  • Page 64 Main parts check 1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature Sensors. Room temperature(T1) sensor, Indoor coil temperature(T2) sensor, Outdoor coil temperature(T3) sensor, Outdoor ambient temperature(T4) sensor, Compressor discharge temperature(TP) sensor. Measure the resistance value of each winding by using the multi-meter.
  • Page 65 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 66 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 67 2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value KSN98D22UFZ KSM135D23UFZ KTF235D22UMT Blue - Blue - 1.57Ω 1.72Ω 0.75Ω Black (20℃/68℉) (20℃/68℉) (20℃/68℉) Red - Blue...
  • Page 68 AIR CONDITIONING SYSTEMS WALL MOUNTED UNIT Scan here to download the latest version of this manual.

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