Panasonic CS-VA75KE, Service Manual

Page 1: ...Conditioning Corp Sdn Bhd 183914D All rights reserved Unauthorized copying and distribution is a violation of law CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE 13 Servicing Informatio...

Page 2: ...Filter Trap dust tabacco smoke and tiny particles Prevent the growth of bacteria and viruses trapped Deodorizing Air Purifying Filter Remove unpleasant odors from the air Quality Improvement Gas leaka...

Page 3: ...Speed Airflow Direction Control 24 hour OFF ON Real Timer Setting ON TIMER OFF TIMER Timer Operation Selection SET CANCEL Timer Operation Set Cancel ON Timer and OFF Timer setting and cancellation CL...

Page 4: ...tion Operation Mode Heating Cooling Soft Dry and Automatic Mode Powerful Operation Reaches the desired room temperature quickly Time Delay Safety Control Restarting is inhibited for appro 3 minutes St...

Page 5: ...ontrol When the unit is switched to OFF during Heating Operation 4 way valve stays at Heating position for 5 minutes Overload Protection Control Outdoor fan stops when indoor heat exchanger temperatur...

Page 6: ...4 300 dB A Cooling High 34 Low 26 Cooling High 46 Heating High 36 Low 26 Heating High 48 Noise Level Power level dB Cooling High 47 Cooling High 61 Heating High 49 Heating High 63 Electrical Data Inpu...

Page 7: ...xchanger Description Evaporator Condenser Tube material Copper Copper Fin material Aluminium Pre Coat Aluminium Pre Coat Fin Type Slit Fin Louver Fin Row Stage Plate fin configuration forced draft 2 1...

Page 8: ...g High 48 Heating High 38 Low 26 Heating High 48 Noise Level Power level dB Cooling High 51 Cooling High 63 Heating High 51 Heating High 63 Electrical Data Input W Cooling 950 Heating 860 Running Curr...

Page 9: ...rator Condenser Tube material Copper Copper Fin material Aluminium Pre Coat Aluminium Pre Coat Fin Type Slit Fin Louver Fin Row Stage Plate fin configuration forced draft 2 14 1 18 FPI 18 19 Size W H...

Page 10: ...High 49 Heating High 39 Low 29 Heating High 49 Noise Level Power level dB Cooling High 52 Cooling High 64 Heating High 52 Heating High 64 Electrical Data Input kW Cooling 1 24 Heating 1 17 Running Cu...

Page 11: ...ion Evaporator Condenser Tube material Copper Copper Fin material Aluminium Pre Coat Aluminium Pre Coat Fin Type Slit Fin Louver Fin Row Stage Plate fin configuration forced draft 2 14 2 19 FPI 21 16...

Page 12: ...4 Dimensions 12 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 13: ...13 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 14: ...5 Refrigeration Cycle Diagram 14 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 15: ...15 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 16: ...6 Block Diagram 16 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 17: ...LUE 707 1 YELLOW BROWN 71 1 BROWN ORANGE 64 7 ORANGE WHITE 15 7 WHITE RED 116 2 Resistance of Outdoor Fan Motor Windings MODEL CU VA75KE CONNECTION CWA95245 BLUE YELLOW 260 5 YELLOW RED 446 0 Resistan...

Page 18: ...YELLOW BLUE 451 2 YELLOW BROWN 86 7 BROWN ORANGE 98 4 ORANGE WHITE 51 5 WHITE RED 240 8 Resistance of Outdoor Fan Motor Windings MODEL CU VA95KE CONNECTION CWA95245 BLUE YELLOW 260 5 YELLOW RED 446 0...

Page 19: ...YELLOW BLUE 450 7 YELLOW BROWN 68 2 BROWN ORANGE 56 7 ORANGE WHITE 56 9 WHITE RED 102 0 Resistance of Outdoor Fan Motor Windings MODEL CU VA125KE CONNECTION CWA95245 BLUE YELLOW 260 5 YELLOW RED 446 0...

Page 20: ...it is turned ON by Remote Control When the setting temperature is reached during cooling operation the compressor stops and it will not start for 3 minutes The compressor will start automatically if i...

Page 21: ...Control is valid If the above phenomenon is repeated for 3 times the compressor will stops The above phenomenon is reset when there is a change to heating mode or stopped by Remote Control Switch Whe...

Page 22: ...Cooling Operation Time Diagram 22 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 23: ...ation is turned off it stops for 6 minutes Once the compressor stops it will not start for 3 minutes during Cooling operation Same as Starting Current Control for Cooling Mode operation Same as Anti F...

Page 24: ...Soft Dry Operation Time Diagram 24 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 25: ...the indoor heat exchanger temperature falls to 49 C If the indoor heat exchanger becomes 65 C or more the compressor will stop and restart automatically Time Delay Safety Control 4 minutes waiting If...

Page 26: ...the first 30 sec from compressor OFF Thermo OFF Indoor fan speed will operate accordingly to the Indoor heat exchanger temperature as shown below Note SSLo Fan will be running at Lo speed with Indoor...

Page 27: ...is selected at Remote Control during heating operation Fan speed rotates in the range of Me Lo according to the heat exchanger temperature If use Manual Fan Speed at above diagram will operate with se...

Page 28: ...duration due to overload control is accumulated up to 60 minutes and after compressor starts for 1 minutes deicing starts Deicing ends when 1 12 minutes after deicing operation starts 2 TRS senses th...

Page 29: ...Normal Deicing Time Diagram Overload Deicing Time Diagram 29 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 30: ...Present Judgement Next Mode Mode Cooling Soft Dry Heating O O Cooling 23 C Cooling Judgement Not Applicable Judgement Heating 23 C Above Below 23 C O O Soft Dry 20 C Soft Dry Not Applicable Judgement...

Page 31: ...of JX1 Refer Circuit Diagram 8 7 Delay ON Timer Control When the Delayed ON Timer is set by using the remote control the unit will start operate slightly before the set time so that the room will rea...

Page 32: ...Sleep Shift O Manual O Economy Auto Fan Speed O Sleep Shift O Normal Manual O O SOFT Powerful Auto Fan Speed O O DRY Economy Sleep Shift O Hi O O O Normal Manual Me O O O Lo O O O Auto Fan Speed O O...

Page 33: ...the intake air temp falls to 35 C the louver is changed from lower to upper limit The louver can be selected between 14 36 as shown above when pressing Manual Airflow Direction Selection Button The lo...

Page 34: ...Airflow Direction In Manual or Auto setting the vane will automatically change to Auto Air Swing 2 Heating Mode When the Economy Mode is set the temperature will be automatically decreased 0 5 C again...

Page 35: ...the Powerful Mode is set the set temperature will be automatically increased 3 C against the present setting temperature The Fan Speed will shift as shown below Vertical Airflow Direction In Manual s...

Page 36: ...assified as follows The instructions to be followed are classified by the following symbols Warning Caution This symbol with a white background denotes an action that is PROHIBITED Warning This sign w...

Page 37: ...rate with wet hands Operation Precautions Use specified power cord Do not damage or modify the power cord If abnormal condition burnt smell etc occurs switch off and unplug the power supply OFF Do not...

Page 38: ...hing on the outdoor unit Ventilate the room regularly Pay attention as to whether the installation rack is damaged due to long period of usage Caution This sign warns of injury Do not pull the cord to...

Page 39: ...ontal Airflow Direction Louver Manually adjusted Economy Powerful Indicators Economy Green Powerful Orange POWER ECONOMY POWERFUL SLEEP TIMER POWER ECONOMY POWERFUL SLEEP TIMER Front Panel When the fr...

Page 40: ...der Outdoor Unit Accessories Air Purifying Filters Catechin Air Purifying Filters and Deodorizing Filters CU VA75KE CU VA96KE Connecting cable Piping Air Intake Vents Air Outlet Vents Side Rear Ground...

Page 41: ...DRY AUTO AUTO ON AUTO FAN AIR SWING AM PM OFF AM PM MODE ECONOMY FAN SPEED AUTO MANUAL ON OFF SET CANCEL SLEEP Timer Set Button ON TIMER Button OFF TIMER Button Timer Cancellation Button Sleep Mode O...

Page 42: ...drop Do not get it wet Certain type of flourescent lamps may affect signal reception Consult your dealer Signal receptor Signal received sound One short beep or one long beep Reset points short to cle...

Page 43: ...if the indoor unit has been turned off with the remote control If operation is stopped then restart immediately the unit will resume operation only after 3 minutes POWER ECONOMY POWERFUL SLEEP TIMER 1...

Page 44: ...s if the unit is not going to be used for a long period lights up PM PM 1 OPEN Slide the cover to open 2 Be sure the directions are correct Open the remote control cover and confirm the display 12 00...

Page 45: ...y Operation A very gentle Cooling Operation Consisting primarily of dehumidifying It does not lower the room temperature During Soft Dry operation the indoor fan operates at Low fan speed DRY 1 Press...

Page 46: ...he display changes in this order Horizontal Airflow Direction Adjust it manually POWER ECONOMY POWERFUL SLEEP TIMER AIR SWING TIMER CLOCK 1 2 3 COOL AUTO FAN MODE ECONOMY FAN SPEED AUTO MANUAL ON OFF...

Page 47: ...CANCEL The timer indicator on the indoor unit will go off To change the setting time follow the above steps AM ON Timer details When the ON Timer is set operation will start before the actual set time...

Page 48: ...the time at which you will come back with the ON TIMER This will prevent the air conditioner from being left on while you are out and the temperature will be pleasant when you return When you return S...

Page 49: ...ature while sleeping Sleep Mode Temperature Approx 8 hours after sleep shift operation starts stops automatically Sleep shift operation starts Approx 2 C decrease Approx 3 C decrease Time Sleep Operat...

Page 50: ...ill operate for 15 minutes only To cancel this operation press once more Economy and Powerful operation cannot be selected simultaneously The changes of the temperature and airflow volume are automati...

Page 51: ...badly soiled wash it with soap or a mild household detergent Cleaning the Indoor Unit and Remote Control Wipe gently with a soft dry cloth Do not clean with water hotter than 40 C or with polishing fl...

Page 52: ...RFUL SLEEP TIMER Do not leave water on the panel after cleaning Dry thoroughly to prevent electric shock Stand on a level surface when removing the front panel Do not touch the metal parts in the indo...

Page 53: ...er operates with dirty filters Air is not purified Cooling capacity decreases Foul odours are emitted Note Catechin is natural brown element The filter is coated with catechin in order to prevent the...

Page 54: ...of the indoor unit operate the unit for 2 3 hours using operation with 30 C setting temperature 2Turn off the power switch and remove the power supply plug Note If the unit is not switched off by the...

Page 55: ...conditioner Wait until the air conditioner begins operating Q It seems that fog is coming out from the air conditioner A Condensation occurs when the airflow from the air conditioner cools the room ai...

Page 56: ...r buttons do not operate properly The circuit breaker switches off frequently Abnormal noise is heard during operation Water leaks from the indoor unit Abnormal Operation Call the Dealer Immediately T...

Page 57: ...Sound Note If you press this button continuously for 5 to 10 seconds Test Run operation will be performed A beep sound will be heard at the fifth seconds to identify the starting of Test Run operation...

Page 58: ...heating performance Keep All Doors and Windows Closed Otherwise cooling and heating performance will be reduced and electricity costs is wasted Setting Temperature Set the temperature 1 C higher Cooli...

Page 59: ...FROM THE SUPPLY SOCKET WHEN NOT IN USE WHERE SUPPLY CONNECTION IS VIA MAINS PLUG Airborne noise A weighted sound pressure level of this appliance is less than 70 dB A under the JIS C 9612 test condit...

Page 60: ...gen deficiency if it leaks into a closed room since it collects in the lower area of the room It also generates toxic gas when it is directly exposed to a flame so it must be used in a well ventilated...

Page 61: ...st Incorrect repairs can result in an water leakage electric shock fire etc 10 2 TOOL FOR INSTALLING SERVICING REFRIGERANT PIPING 10 2 1 Necessary Tools In order to prevent an R410A AC from mistakenly...

Page 62: ...onventional wrenches R410A wrenches For 1 4 opposite side x torque 17 mm x 18 N m 180 kgf cm 17 mm x 18 N m 180 kgf cm For 3 3 opposite side x torque 22 mm x 42 N m 180 kgf cm 22 mm x 42 N m 180 kgf c...

Page 63: ...h CFC and HCFC cannot be used with R410A because there is no chlorine in the refrigerant The present R134a leak detector can be used but the detection sensitivity will be lower setting the sensitivity...

Page 64: ...by opening and closing the valve 9 Refrigerant cylinders The R410A cylinders are labeled with the refrigerant name and the coating color of the cylinder protector is pink which is the color stipulate...

Page 65: ...tional flaring tool use the copper pipe gauge for clearance adjustment etc to ensure the correct A dimension see Fig 10 Fig 10 Flaring dimensions 10 3 1 Piping Materials It is recommended that you use...

Page 66: ...l center of the union c Use a torque wrench and tighten to the specified torque The tightening torque for R410A is the same as the conventional torque value for R22 Be careful because if the torque is...

Page 67: ...with a vacuum pump 10 4 INSTALLATION TRANSFERRING SERVICING 10 4 1 Inspecting Gas Leaks with a Vacuum Pump for New Installations Using New Refrigerant Piping 1 From the viewpoint of protecting the gl...

Page 68: ...e of the different pressure characteristics of R22 and R410A the design pressure for the equipment is 1 6 times different the wall thickness of the piping must comply with that shown in Table 10 but t...

Page 69: ...t in the cooling mode while charging a little of the liquid at a time about 150 g time as a guideline If the charging amount is insufficient from one operation wait about one minute then use the same...

Page 70: ...xidize Especially when the interior of the refrigerant circuit oxidizes due to overheating scale occurs and stays in the circuit as dust thus exerting a fatally adverse effect So make brazing at adequ...

Page 71: ...cording to this installation instruction strictly If installation is defective it will cause water leakage electrical shock or fire 3 Use the attached accessories parts and specified parts for install...

Page 72: ...d and strong enough to support or hold the unit and select a location for easy maintenance 2 Power supply connection to the room air conditioner Connect the power supply cord of the room air condition...

Page 73: ...all in a height of at least 2 3 m OUTDOOR UNIT If an awning is built over the unit to prevent direct sunlight or rain be careful that heat radiation from the condenser is not obstructed There should n...

Page 74: ...by aligning the marking off line with the thread and using a level gauge 2 Drill the piping plate hole with 70 mm hole core drill Line according to the arrows marked on the lower left and right side o...

Page 75: ...3 For the embedded piping This can be used for left rear piping and left bottom piping also 75 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 76: ...nit 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 ou...

Page 77: ...occur at the tenth sec in order to indicate the ON OFF change over of remote control receiving sound 11 3 OUTDOOR UNIT 11 3 1 SELECT THE BEST LOCATION Refer to Select the best location section 11 3 2...

Page 78: ...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 t...

Page 79: ...r Ensure the difference between the intake temperature and the discharge is more than 8 C NOTE These equipment shall be connected to a suitable mains network with a main impedance less than the follow...

Page 80: ...lation Operation Open Open Closed With valve cap With valve cap With cap Pumping down Closed Open Open Transferring Clockwise Counter Clockwise Connected manifold gauge Evacuation Open Open Open Servi...

Page 81: ...minutes BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID GAS LEAKAGE If air remain in the indoor unit and refrigeration pipes it will affect the compressor reduce to cooling capacity and could lead t...

Page 82: ...at the cooling cycle and stop it when the gauge indicates 0 MPa 0 kg cm2 G If the unit cannot be operated at the cooling condition weather is rather cool short the Pumping Down pins on the Main Contro...

Page 83: ...ipes and indoor unit with gas refrigerant from 3 way valve service port and then discharge the refrigerant until low side gas side gauge needle indicates 0 3 MPa 3 kg cm2 If air remain in the indoor u...

Page 84: ...e the refrigerant until the gauge indicates 0 05 MPa 0 5 kg cm2 G to 0 1 MPa 1 kg cm2 G If there is no air in the refrigeration cycle the pressure when the air conditioner is not running is higher tha...

Page 85: ...acuum of 4 mmHg or less 3 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump...

Page 86: ...however one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin This is different from previous procedures Because you are charging with liquid refrigera...

Page 87: ...emove the control board by Releasing CN C GRN connector Fig 2 Releasing CN FM GRN connector Fig 2 Releasing CN STM connector Fig 2 Remove the earth wire screw Fig 2 Release the intake air sensor Fig 2...

Page 88: ...n motor by referring to the Indoor Fan Motor Removal Procedure 2 Remove the evaporator screw Fig 6 3 Press the particular piece to loosen the evaporator Fig 7 4 Remove the bearing Fig 7 5 Push up the...

Page 89: ...the wireless remote control transmission code When two indoor units are installed in the same room in order to prevent operating errors caused by using two remote controls add a jumper wire to the re...

Page 90: ...ation problem with the power source malfunction of a compressor and a fan The normal outlet air temperature and pressure of the refrigeration cycle depend on various conditions the standard values for...

Page 91: ...d 4 way valve Nature of fault Symptom Electric current during operation becomes approximately 20 lower than the normal value Insufficient compressing of a compressor The discharge tube of the compress...

Page 92: ...15 Technical Data 92 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 93: ...1 00 2 23 1 88 1 08 19 0 C 2 85 0 95 19 5 C 3 10 2 24 0 89 2 90 2 16 0 95 2 70 2 08 1 02 2 45 1 98 1 10 22 0 C 3 38 2 33 0 90 3 16 2 24 0 97 2 94 2 16 1 04 2 67 2 06 1 12 230V Outdoor Temp C Indoor w...

Page 94: ...94 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 95: ...95 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 96: ...96 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 97: ...ew 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 97 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA12...

Page 98: ...Y CORD 1 CWA20C2102 23 ELECTRONIC CONTROLLER 1 CWA742335 CWA742341 CWA742336 0 24 RECEIVER 1 CWA74919 0 25 INDICATOR COMPLETE 1 CWE39C1024 0 26 LEAD WIRE INDICATOR 1 CWA67C2105 27 TERMINAL BOARD 1 CWA...

Page 99: ...ew 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 99 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA12...

Page 100: ...81 20 SOUND PROOF MATERIAL FOR COMPRESSOR 1 CWG302073 21 L SHAPED PLATE 1 CWD60247 22 OVERLOAD PROTECTOR 1 CWA12304 CWA12298 0 23 HOLDER O L P 1 CWH7041200 CWH34033 24 TERMINAL COVER 1 CWH171011 CWH17...

Page 101: ...w 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 101 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA12...

Page 102: ...4 19 SOUND PROOF MATERIAL 1 CWG30888 20 OVERLOAD PROPECTOR 1 CWA12364 0 21 HOLDER O L P 1 CWH7041200 22 TERMINAL COVER 1 CWH171011 23 NUT TERMINAL COVER 1 CWH7080300 24 TEMPERATURE RELAY 1 CWA14C1001...

Page 103: ...TED CIRCUIT A52C114 Q1 TRANSISTOR A55DC114EKTX Q2 Q3 TRANSISTOR A55C2412KTX Q4 TRANSISTOR A55D1484K Q5 Q8 TRANSISTOR A55DC143XKTX RY HOT ELECTRO MAGNETIC RELAY A00161 RY PWR ELECTRO MAGNETIC RELAY A00...

Page 104: ...PH4 1 3 IC5 A52A2003GR2 RX1 24k R30 26 1k R31 10k R28 JX2 SW1 5 1k R16 1k R17 0 01 C11 16V 10 C15 15k R26 R27 20k C16 10 16V PH3 PH302C 330 0 01 0 01 FO VCC2 OUT VCC1 GND CO IN IN 47 6 3V 137k 5 6 7 8...

Page 105: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 29 28 27 26 25 30 P50 P51 P52 P53 P54 P55 P56 P57 Vss0 VDD0 P30 P31 P32 P33 P34 P3...

Page 106: ...0V 4 3 2 1 A54MA723TA D2 10k R42 10 C20 51k R43 0 01 C21 A54MA165TA5 D3 FM BLU RED HOT ZNR2 CR1 CWA59015 RY HOT CWA00161 SSR2 16V 1 3 CN FUSE2 TEMPERATURE FUSE 102 C 2 2 1 2 3 4 TERMINAL BLACK BLACK C...

Page 107: ...107 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 108: ...40 sec 4 sec Cooling 70 sec 7 sec 20 sec 2 sec 180 sec 18 sec Soft Dry 40 sec 4 sec 360 sec 36 sec Comp Reverse Rotation Detection 5 min 30 sec Comp ON 5 min and above 2 min 0 sec Comp Fan Motor Delay...

Page 109: ...23 1 REMOTE CONTROL 109 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 110: ...23 2 PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD TOP VIEW 110 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 111: ...23 3 PRINT PATTERN INDOOR UNIT PRINTED CIRCUIT BOARD BOTTOM VIEW 111 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE...

Page 112: ...112 CS VA75KE CU VA75KE CS VA95KE CU VA95KE CS VA125KE CU VA125KE MACC Printed in Malaysia...