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Panasonic CS-TE12HKE, Service Manual, Page: 42 / 56

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Panasonic CS-TE12HKE Service Manual Download Page 42

42

16 Disassembly and Assembly Instructions

16.1. Disassembly of Indoor Unit

16.1.1.

Removal of the Front Panel and Front Grille.

High voltages are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding
with repair work. Failure to heed this caution may result in electric shocks.

Summary of Contents for CS-TE12HKE

Page 1: ...t Overview 7 5 Dimensions 8 5 1 Indoor Unit 8 5 2 Outdoor Unit 9 6 Refrigeration Cycle Diagram 10 7 Block Diagram 11 8 Wiring Connection Diagram 12 8 1 Indoor Unit 12 8 2 Outdoor Unit 13 9 Electronic Circuit Diagram 14 9 1 Indoor Unit 14 9 2 Outdoor Unit 15 10 Printed Circuit Board 16 10 1 Indoor Unit 16 10 2 Outdoor Unit 17 11 Installation Instruction 18 11 1 Select The Best Location 18 11 2 Indo...

Page 2: ...ge to properties This symbol denotes item that is PROHIBITTED from doing 1 Engage dealer or specialist for installation and servicing If installation or servicing done by the user is defective it will cause water leakage electrical shock or fire 2 Install according to this installation instructions strictly If installation is defective it will cause water leakage electric shock or fire 3 Use the a...

Page 3: ... mentioned in installation instructions If drainage is not perfect water may enter the room and damage the furniture 3 Tighten the flare nut with torque wrench according to specified method If the flare nut is over tightened after a long period the flare may break and cause refrigerant gas leakage 4 Do not touch outdoor unit air inlet and aluminium fin It may cause injury 5 Select an installation ...

Page 4: ... min Cooling 6 2 219 Heating 8 5 300 Me m3 min ft3 min Cooling 8 1 286 Heating 10 0 353 Hi m3 min ft3 min Cooling 10 2 360 Cooling 32 5 1150 Heating 11 5 410 Heating 31 3 1100 Refrigeration Control Device Expansion Valve Refrigeration Oil cm3 RB68A or Freol Alpha68M 400 Refrigerant R410A g oz 1 01k 35 7 Dimension Height mm inch 298 11 3 4 540 21 9 32 Width mm inch 799 31 15 32 780 30 23 32 Depth m...

Page 5: ...20 1450 Hi Cool Heat rpm 1570 1630 870 850 SHi Cool Heat rpm 1610 1630 Heat Exchanger Fin Material Aluminium Pre Coat Aluminium Fin Type Slit Fin Corrugated Fin Row x Stage x FPI 2 1 x 11 4 x 23 2 x 24 x 17 Size W x H x L mm 640 x 304 x 25 4 36 4 x 504 x 713 684 Air Filter Material Polypropelene Type One Touch Item Unit Power Source Phase Voltage Cycle ø Single V 230 Hz 50 Input Power W Cooling 1 ...

Page 6: ...0A Long Installation Piping CS CU TE15HKE long piping up to 15 meters Quality Improvement Random auto restart after power failure for safety restart operation Gas leakage protection Prevent compressor reverse cycle Inner protector to protect compressor Noise prevention during soft dry operation Operation Improvement Quiet mode to reduce the indoor unit operating sound Powerful mode to reach the de...

Page 7: ...7 4 Location of Controls and Components 4 1 Product Overview 4 1 1 Indoor Unit 4 1 2 Outdoor Unit 4 1 3 Remote Control ...

Page 8: ...8 5 Dimensions 5 1 Indoor Unit ...

Page 9: ...9 5 2 Outdoor Unit ...

Page 10: ...10 6 Refrigeration Cycle Diagram ...

Page 11: ...11 7 Block Diagram ...

Page 12: ...12 8 Wiring Connection Diagram 8 1 Indoor Unit ...

Page 13: ...13 8 2 Outdoor Unit ...

Page 14: ...14 9 Electronic Circuit Diagram 9 1 Indoor Unit ...

Page 15: ...15 9 2 Outdoor Unit ...

Page 16: ...16 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Printed Circuit Board ...

Page 17: ...17 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board ...

Page 18: ...g is built over the unit to prevent direct sunlight or rain be careful that heat radiation from the condenser is not obstructed There should not be any animal or plant which could be affected by hot air discharged Keep the spaces indicated by arrows from wall ceiling fence or other obstacles Do not place any obstacles which may cause a short circuit of the discharged air If piping length is over t...

Page 19: ... from the sideways arrow on the installation plate see figure above The center of the left piping hole is at the intersection of lines extending vertically from the downward arrow on the installation plate and horizontally from the sideways arrow on the installation plate see figure above Drill the piping hole at either the right or the left and the hole should be slightly slanted to the outdoor s...

Page 20: ...20 3 For the embedded piping This can be used for left rear piping and left bottom piping also ...

Page 21: ...flexible cord type designation 245 IEC 57 H05RN F or heavier cord Ensure the colour of wires of outdoor unit and the terminal Nos are the same to the indoor s respectively Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage Secure the cable onto the control board with the holder clampe...

Page 22: ...th torque wrench in specified torque as stated in the table Connecting The Piping To Outdoor Unit Decide piping length and then cut by using pipe cutter Remove burrs from cut edge Make flare after inserting the flare nut locate at valve onto the copper pipe Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table CUTTING AND FLARING THE PI...

Page 23: ...lve 6 Tighten the service port caps of the 3 way valve at a torque of 18 NO m with a torque wrench 7 Remove the valve caps of both of the 2 way valve and 3 way valve Position both of the valves to OPEN using a hexagonal wrench 4 mm 8 Mount valve caps onto the 2 way valve and the 3 way valve Be sure to check for gas leakage 11 4 4 CONNECT THE CABLE TO THE OUTDOOR UNIT 1 Remove the control board cov...

Page 24: ...mentioned in Indoor Outdoor Unit Installation Diagram Please wrap the insulated piping end to prevent water from going inside the piping 2 If drain hose or connecting piping is in the room where dew may form please increase the insulation by using POLY E FOAM with thickness 6 mm or above ...

Page 25: ...ing on the air conditioner settings and the operation environment The final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit 12 1 2 Cooling Operation 12 1 2 1 Thermostat control Compressor is OFF when Intake Air Temperature Internal Setting Temperature 1 5qC Compressor is ON after waiting for 3 minutes i...

Page 26: ...r Operation A Basic Rotation Speed rpm i Manual Fan Speed Cooling Dry Fan motor s number of rotation is determined according to remote control setting Heating Fan motor s number of rotation is determined according to remote control setting ii Auto Fan Speed Cooling Dry According to room temperature and setting temperature indoor fan speed is determined automatically The indoor fan will operate acc...

Page 27: ... indoor heat exchanger temperature as Figure 1 below When the air conditioner is stopped using remote control the vane will shift to close position 2 Manual vertical airflow direction can be set using remote control the angles of the vane are as stated above and the positions of the vane are as Figure 2 below When the air conditioner is stopped using remote control the vane will shift to close pos...

Page 28: ...ing conditions is satisfied quiet operation stops a Powerful button is pressed b Stop by OFF ON switch c Timer off activates d Quiet button is pressed again 2 When quiet operation is stopped operation is shifted to normal operation with previous setting 3 When fan speed is changed quiet operation is shifted to quiet operation of the new fan speed 4 When operation mode is changed quiet operation is...

Page 29: ...r temperature and outdoor air temperature in order to judge the operation starting time From the judgment the decided operation will start operate earlier than the set time as shown below 12 6 OFF Timer Control OFF timer can be set using remote control the unit with timer set will stop operate at set time 12 7 Auto Restart Control 1 When the power supply is cut off during the operation of air cond...

Page 30: ...er Operation Stop Condition When one of the following condition is satisfied ION operation stops a Stopped by ON OFF switch b Timer OFF activates c ION feedback signal shows error 3 Ionizer operation status is not memorised by microcontroller After OFF when operation is ON again air conditioner operates without ionizer operation 12 9 1 Ionizer Error Detection There are 3 errors detect by the unit ...

Page 31: ...ancel this error c Ionizer Control Power Supply Error Detection During ionizer stopped power is supplied to the ionizer due to indoor PCB error During this error TIMER LED blinks and unit stop operation Ion LED blinks error code H26 is indicated Exchange main PCB to cancel this error ...

Page 32: ... Y value compressor will be stopped immediately for 3 minutes 4 The first 30 minutes of cooling operation A will be applied 13 1 4 IPM Power transistor Prevention Control A Overheating Prevention Control 1 When the IPM temperature rises to 110qC compressor operation will stop immediately 2 Compressor operation restarts after 3 minutes the temperature decreases to 95qC B DC Peak Current Control 1 W...

Page 33: ...ure indoor piping temperature is below 4qC During Heating operations Indoor piping temperature indoor suction is under 5qC b Control contents Compressor stops and restart after 2 minutes If the conditions above happen 2 times within 20 minutes the unit will Stop operation Timer LED blinks and F91 indicated 13 1 7 Low Frequency Protection Control 1 When the compressor operate at frequency lower tha...

Page 34: ...ency The compressor stop if outdoor pipe temperature exceeds 63qC If the compressor stops 4 times in 20 minutes Timer LED blinking F95 outdoor high pressure rise protection 13 2 3 Freeze Prevention Control 1 When indoor heat exchanger temperature is lower than 0qC continuously for 6 minutes compressor will stop operating 2 Compressor will resume its operation 3 minutes after the indoor heat exchan...

Page 35: ...re is 30qC or above 13 3 2 Outdoor Air Temperature Control The Max current value is regulated when the outdoor air temperature rise above 14qC in order to avoid compressor overloading 13 3 3 Overload Protection Control The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown in below If the heat exchanger temperature exceeds 60qC compressor will s...

Page 36: ...tch Mode is in standby condition and press any button at remote control to transmit and store the desired transmission code to the EEPROM For transmission code selection explanation please refer to Select Remote Control Transmission Code 4 REMOTE CONTROL RECEIVING SOUND OFF ON MODE The Remote Control Receiving Sound OFF ON Mode will be activated if the Auto OFF ON button is pressed continuously fo...

Page 37: ...t operate for 30 seconds 14 3 2 CLOCK BUTTON To change the remote control s time format Press for more than 5 seconds 14 3 3 RESET RC To clear and restore the remote control setting to factory default Press once to clear the memory 14 3 4 RESET AC To restore the unit s setting to factory default Press once to restore the unit s setting 14 3 5 TIMER To change indoor unit indicator s LED intensity P...

Page 38: ... problems before inspecting the refrigeration cycle Such problems include insufficient insulation problem with the power source malfunction of a compressor and a fan The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions the standard values for them are shown in the table on the right ...

Page 39: ...es after an operation is started Cooling Mode Heating Mode Low Pressure High Pressure Electric current during operating Low Pressure High Pressure Electric current during operating Condition of the air conditioner Insufficient refrigerant gas leakage Clogged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient compression ...

Page 40: ...display Signal is transmitted to the main unit 5 Press the TEMP or button When button is pressed the display goes back repeatedly and slowly until Beep sound about 5 seconds intermittently is heard from main unit 6 Then displayed error code matches to the error code saved in unit memory The power LED on the main unit also lights up Note When the CHECK button is pressed continuously for 5 seconds a...

Page 41: ...or defective or disconnected H26 Ionizer abnormality Indoor PCB Ionizer H27 Outdoor air temperature sensor abnormality Continue for 5 sec O Outdoor temperature sensor defective or disconnected H28 Outdoor heat exchanger temperature sensor abnormality Continue for 5 sec O Outdoor heat exchanger temperature sensor defective or disconnected H33 Indoor Outdoor wrong connection Indoor Outdoor supply vo...

Page 42: ...it 16 1 1 Removal of the Front Panel and Front Grille High voltages are generated in the electrical parts area by the capacitor Ensure that the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks ...

Page 43: ...43 16 1 2 Removal of Electronic Controller ...

Page 44: ...44 16 1 3 Removal of Control Board ...

Page 45: ...45 16 1 4 Removal of Fan Motor and Cross Flow Fan ...

Page 46: ...46 ...

Page 47: ...ler be careful of electrostatic discharge 1 Remove the 3 screws of the Top Panel Fig 1 2 Remove the 6 screws of the Front Panel Fig 2 3 Remove the screw of the Terminal Board Cover 4 Remove the Top Cover of the Control Board by 4 hooks Fig 3 5 Remove the Control Board as follows Fig 4 Fig 5 Fig 6 ...

Page 48: ...48 17 Technical Data 17 1 Operation Characteristics ...

Page 49: ...49 ...

Page 50: ...50 ...

Page 51: ...51 ...

Page 52: ...7 0qC 4 27 3 23 1 21 3 99 3 10 1 30 3 71 2 98 1 39 3 37 2 83 1 50 19 0qC 4 30 1 32 19 5qC 4 68 3 39 1 23 4 38 3 25 1 33 4 07 3 13 1 42 3 70 2 98 1 53 22 0qC 5 10 3 51 1 25 4 77 3 38 1 35 4 44 3 26 1 42 4 03 3 11 1 56 TC SHC IP Total Cooling Capacity kW Sensible Heat Capacity kW Input Power kW Indoor 27qC 19qC Outdoor 35qC 24qC ...

Page 53: ...8 Exploded View and Replacement Parts List 18 1 Indoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Page 54: ... 1 CWA743634 O 21 POWER SUPPLY CORD 1 CWA20C2679 22 ELECTRONIC CONTROLLER MAIN 1 CWA73C3239 O 23 CONTROL COVER LOWER 1 CWH131229 24 CONTROL COVER PLASTIC PLATE UPPER 1 CWH131232 25 CONTROL COVER STEEL PLATE UPPER 1 CWH131230 26 GEAR FRONT PANEL OPEN CLOSE MOTOR 1 CWH68C1023 27 FRONT PANEL OPEN CLOSE MOTOR 1 L6JAEDJH0001 28 SENSOR HOLDER PIPE TEMP 1 CWH32137 29 ELECTRONIC CONTROLLER IONIZER 1 CWA73...

Page 55: ...55 18 2 Outdoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Page 56: ...21021 15 2 WAYS VALVE LIQUID 1 CWB021333 O 16 V COIL CO FOR 4 WAY VALVE 1 CWA43C2144J O 17 V COIL COMPLETE FOR EXP VALVE 1 CWA43C2058J O 18 SOUND PROOF BOARD 1 CWH151188 19 REACTOR 1 G0C193J00004 O 20 SOUND PROOF MATERIAL 1 CWG302464 22 SENSOR COMPLETE 1 CWA50C2205 23 ELECTRONIC CONTROLLER MAIN 1 CWA73C3234R O 24 CONTROL BOARD COVER TOP PCB 1 CWH131264 25 TERMINAL BOARD ASSY 1 CWA28K1036J 26 SENSO...

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