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Panasonic CS-G123KE Service Manual

Summary of CS-G123KE

  • Page 1

    Service manual room air conditioners cs-g93ke / cu-g93ke cs-g123ke / cu-g123ke order no. Mac9812043c2 contents ● features .......................................................... 1 ● functions ................................................... 2 – 6 ● product specifications .........................

  • Page 2: Features

    – 1 – cs-g93ke features • product – powerful mode for quick cool/heat – compressor operating frequency control to maintain desired room temperature – automatic restart after power failure – washable front panel – power monitor display – standby control – high cop (new compressor and indoor heat exch...

  • Page 3: Functions

    – 2 – mac9609040c2 cs-g93ke remote control functions operation off / on room temperature setting temp • temperature setting (16˚c to 30˚c). Off / on l operation mode selection • a automatic operation mode • heat heating operation mode • cool cooling operation mode • dry soft dry operation mode • fan...

  • Page 4: Functions

    – 3 – cs-g93ke functions indoor unit power switch off / on l l l l l power monitor display * * * * * • lights up during compressor operation. Automatic operation switch • used when the remote control cannot be used. Remote control signal receiving sound control off/on * * * * * • it can be controlle...

  • Page 5

    Mac9609040c2 cs-g93ke cs-g93ke cs-g93ke functions functions – 4 – – 5 – – 6 – outdoor fan motor time delay safety control * * * * * forced operation 30 seconds * * * * * high pressure control * * * * * (for cooling/soft dry) dc peak * * * * * • 6 poles induction motor, 1 speed. * details can be refe...

  • Page 6

    Mac9609040c2 cs-g93ke cs-g93ke cs-g93ke cooling capacity heating capacity moisture removal power source airflow method air volume noise level electrical data piping connection port (flare piping) pipe size (flare piping) drain hose power cord length number of core-wire dimensions net weight compress...

  • Page 7: Product Specifications

    – 10 – mac9509078c2 cs-g93ke heat exchanger refrigerant control device refrigeration oil refrigeration (r-22) thermostat protection device capillary tube air filter fan motor capacitor description tube material fin material fin type row / stage fpi size (w × h × l) length flow rate inner diameter ma...

  • Page 8: Dimensions

    – 11 – cs-g93ke 799 60 58 60 83 279 60 36 190 65 18 122 temp powerful c 425 48 gas side liquid side drain port 65 dimensions cs-g93ke / cs-g123ke air intake direction air outlet direction left piping hole right piping hole remote control transmitter centre notch slot (2 places) right piping hole arr...

  • Page 9: Dimensions

    – 12 – mac9509078c2 cs-g93ke 11 67 67 540 285 (323) 347 7.5 100 cm 10 cm 10 cm 100 500 99 (52) 69 32 162 (120) 699 dimensions cu-g93ke / cu-g123ke space necessary for installation anchor bolt pitch 323 x 500 low pressure 3-ways valve high pressure 2-ways valve untitled-2 6/20/00, 4:33 pm 12.

  • Page 10: Refrigeration Cycle Diagram

    – 13 – cs-g93ke refrigeration cycle diagram cs-g93ke / cu-g93ke cs-g123ke / cu-g123ke compressor 4-way valve c1 c3 c2 check valve outdoor air temp. Sensor sensor temp. Intake air exchanger temp. Sensor indoor outdoor cooling heating heat exchanger (evaporator) heat exchanger (condenser) 2-way valve ...

  • Page 11: Block Diagram

    – 14 – mac9509078c2 cs-g93ke block diagram cs-g93ke / cu-g93ke cs-g123ke / cu-g123ke indicates the electronic controller. Indicates the number of core wires.(example: 5c=5 core wires) "c" fuse (3.15a) thermal fuse 102 ° c 50hz 230v phase single suppl y switch r y -pwr electronic controller receiver ...

  • Page 12: Wiring Diagram

    – 15 – cs-g93ke wiring diagram 2rd132x5bb03( Ω ) 0.8 0.8 0.8 cs-g93ke / cu-g93ke resistance of outdoor fan motor windings connection blue - yellow yellow - red cwa95384 ( Ω ) 264.1 304.8 resistance of compressor windings connection u-v u-w v-w 5 4 3 2 1 5 4 3 2 1 5 16 16 1 1 1 5 1 1 2 3 4 5 6 7 8 9 ...

  • Page 13: Wiring Diagram

    – 16 – mac9509078c2 cs-g93ke wiring diagram cs-g123ke / cu-g123ke resistance of outdoor fan motor windings connection blue - yellow yellow - red cwa95380 ( Ω ) 234.1 263.5 2rd132x5ba03 ( Ω ) 0.8 0.8 0.8 connection u-v u-w v-w 5 4 3 2 1 5 4 3 2 1 5 16 16 1 1 1 5 1 1 2 3 4 5 6 7 8 9 9 8 7 6 5 4 3 2 1 ...

  • Page 14: Operation Details

    – 17 – mac9509078c2 cs-g93ke once the operation starts, the remote control setting temperature will be shifted internally based on the setting fan speed and outdoor air temperature. In addition, if sleep mode or powerful mode are set, the temperature shift will be carried out. Setting of internal se...

  • Page 15: Operation Details

    – 18 – mac9509078c2 cs-g93ke 2. Cooling operation a. Room temperature control (i) when the remote control setting temperature is less than 24 ° c. Operation details cooling intake air temp. – internal setting temp. ( ° c) internal setting temp. Compressor off temp. Outdoor air temperature model no. ...

  • Page 16: Operation Details

    – 19 – mac9509078c2 cs-g93ke operation details b. Deodorizing control • this control is available during automatic fan speed for cooling and soft dry operation. It is not available during anti-freezing control. • when the compressor is in operation, the deodorizing status starts from 1 → 2 → 3. • wh...

  • Page 17: Operation Details

    – 20 – mac9509078c2 cs-g93ke operation details 3. Soft dry operation a. Room temperature control at the start of operation, cooling operation is running until the intake air temperature is 0.5 ° c higher than internal setting temperature, then the operation will shift to soft dry with indoor fan spe...

  • Page 18: Operation Details

    – 21 – mac9509078c2 cs-g93ke operation details • when the compressor is in operation, the deodorizing status starts from 1 → 2. • when the compressor stops operation, the deodorizing status starts from 3 → 4 → 5. • when the compressor stops operation, indoor fan stops for 330 seconds. B. Deodorizing...

  • Page 19: Operation Details

    – 22 – mac9509078c2 cs-g93ke operation details 4. Heating operation a. Room temperature control • during heating operation, the room temperature control depends on intake air temperature and internal setting temperature. Basically it can be divided into 2 periods as shown below: stabilized period tr...

  • Page 20: Operation Details

    – 23 – mac9509078c2 cs-g93ke operation details (ii) when indoor fan speed is lower than medium cs-g93ke cs-g123ke +1.5 +1.0 +0.5 0 –0.5 –1.0 –1.5 heating operation remote control setting temp. Intake air temperature – internal setting temperature compressor off internal setting temp. Outdoor air tem...

  • Page 21: Operation Details

    – 24 – mac9509078c2 cs-g93ke operation details • compressor off temperature = compressor on temperature. • the operation frequency changes every 30 seconds. • when the difference of the intake air temperature and internal setting temperature is –1.5 ° c or more, compressor will operate at fh continu...

  • Page 22: Operation Details

    – 25 – mac9509078c2 cs-g93ke operation details (auto airflow direction control) (manual airflow direction control) note: – up means fan speed is increased by 1 rank. – down means fan speed is decreased by 1 rank. – max means fan speed is running at maximum auto fan speed. – temperature in ( ) is ind...

  • Page 23: Operation Details

    – 26 – mac9509078c2 cs-g93ke operation details (ii) hot start • at the start of heating operation, the indoor fan stops and compressor operates at fhmax frequency 99hz (cs-g93ke) or 115 hz (cs-g123ke). This is to heat up the indoor heat exchanger in order to avoid cold air discharged. • hot start en...

  • Page 24: Operation Details

    – 27 – mac9509078c2 cs-g93ke • compressor frequency is set at 40hz (cu-g93ke) or 49hz (cu-g123ke) when the deice operation starting signal is generated. • 30 seconds later deice operation starting signal is generated, indoor fan, outdoor fan, 4-way valve are turned off and compressor operates at 40h...

  • Page 25: Operation Details

    – 28 – mac9509078c2 cs-g93ke operation details d. Standby control (a) the purpose of standby control is to warm up the compressor when outdoor temperature is low. The standby control will be activated when all of the followings occur. (i) main power switch is on. (ii) unit is not operating. (iii) ou...

  • Page 26: Operation Details

    – 29 – mac9509078c2 cs-g93ke when the automatic mode is selected, the operation mode is decided in accordance to remote control setting temperature, intake air temperature and outdoor air temperature. • during judging the operation mode, indoor fan is running at lo– speed and outdoor fan at on in or...

  • Page 27: Operation Details

    – 30 – mac9509078c2 cs-g93ke operation details (c) when setting temperature of remote control is 23 ° c ~ 26 ° c. (d) when setting temperature of remote control is 27 ° c and above. Untitled-3 6/20/00, 5:03 pm 30

  • Page 28: Operation Details

    – 31 – mac9509078c2 cs-g93ke operation details • when the operation mode is changed over, the value for t1, t2 and t3 are shifted as follows: cooling/soft dry → heating: –2 ° c heating → cooling/soft dry : +2 ° c • when the indoor intake air temperature is lower than 16 ° c, heating operation is imm...

  • Page 29

    Cs-g93ke cs-g93ke 7. Indoor fan speed control operation details – 32 – mac9609040c2 – 33 – mac9609040c2 fan speed no. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 voltage supply to fan motor dc (v) cs-g93ke 15.6 16.3 17.6 17.9 18.4 18.7 19.3 20.1 21.4 22.0 22...

  • Page 30

    Cs-g93ke cs-g93ke operation details (a) cooling automatic fan speed the automatic fan speed for cooling operation is shown as below: (i) when automatic fan speed is selected 10 sec. A fan no. 15 fan no. 13 fan no. 11 b c d e f g h a b 80 sec. 10 sec. A fan no. 17 fan no. 15 fan no. 13 b c d e f g h ...

  • Page 31: Operation Details

    – 36 – mac9509078c2 cs-g93ke 143 ° 3 ° 7 ° 33 ° 41 ° operation details vane angle 3 33 ° 70 ° 15 ° 46 ° 7 ° ~ 36 ° 11 ° ~ 25 ° 25 ° 18 ° 3 ° ~ 33 ° 11 ° ~ 25 ° 18 ° 18 ° 7 ° ~ 36 ° 25 ° 143 ° 9. Airflow direction a. Vertical airflow direction • vane angle setting operation heating cooling soft dry f...

  • Page 32: Operation Details

    – 37 – mac9509078c2 cs-g93ke 50 ° 90 ° 125 ° 50 ° 90 ° 125 ° 55 ° 55 ° operation details (a) vertical airflow direction manual by pressing the remote control vertical airflow direction setting switch, the vane will move to the indicated angle (1, 2, 3, 4, 5) as shown in the table. When the remote co...

  • Page 33: Operation Details

    – 38 – mac9509078c2 cs-g93ke operation details (b) manual horizontal vane angle setting • by pressing the remote control horizontal airflow direction setting switch, the vane will move to the indicated position (1, 2, 3, 4, 5, 6, 7) as shown in the table. The purpose of this control is to reduce ind...

  • Page 34: Operation Details

    – 39 – mac9509078c2 cs-g93ke operation details 11. Powerful mode operation when the powerful mode is selected, the internal setting temperature will shift to achieve the setting temperature quickly. (a) cooling operation internal setting temperature ↑ when powerful button is pressed ↓ –4 ° c (b) sof...

  • Page 35: Operation Details

    – 40 – mac9509078c2 cs-g93ke operation details (b) heating operation • when the sleep button is pressed, the remote control setting temperature will decrease 2 ° c after 1 hour or when the remote control setting temperature is reached. After another hour, 3 ° c will be decreased again. * • during sl...

  • Page 36: Operation Details

    – 41 – mac9509078c2 cs-g93ke 15. Power monitor display power monitor led lights on when the compressor is in operation. The number of the led lights on is in accordance to the compressor operating frequency. Display cooling & soft dry indication frequency (hz) heating indication frequency (hz) cooli...

  • Page 37: Operation Details

    – 42 – mac9509078c2 operation details cs-g93ke b. Protection 1. Protection control for all operations a. Time delay safety control • the compressor is not restarted for 3 minutes after stop of compressor. B. 30 second forced operation • once the compressor is on, it will not turn off for 30 seconds....

  • Page 38: Operation Details

    – 43 – mac9509078c2 operation details cs-g93ke 2. Dc peak current control • when the electric current to the ipm (power transistor) exceeds the set value, dc 27 ± 4a, the compressor stops. The compressor restarts after 3 minutes. • if within 30 seconds the set value is exceeded again, the compressor...

  • Page 39: Operation Details

    – 44 – mac9509078c2 operation details cs-g93ke g. Minimum frequency operation protection • when the compressor operates at less than 31 hz for 40 minutes, the operating frequency will increase to 31 hz for 2 minutes. 40 min comp. Operating frequency 31hz 2 min i. Low power supply voltage protection ...

  • Page 40: Operation Details

    – 45 – mac9509078c2 operation details cs-g93ke 2. Protection control for cooling & soft dry a. Anti-freezing control • when the temperature of the indoor heat exchanger becomes low, the compressor operating frequency is reduced and stopped when the temperature falls to lower than 2 ° c continuously ...

  • Page 41: Operation Details

    – 46 – mac9509078c2 operation details cs-g93ke c. Anti-fog discharge control • the compressor operating frequency is regulated by operation time to prevent fog discharged from indoor unit as shown in the table below. Operation time, t (min) compressor operating frequency 50hz 46hz 43hz 0 ≤ t 30 ≤ t ...

  • Page 42: Operation Details

    – 47 – mac9509078c2 operation details cs-g93ke c. High pressure control • the compressor operating frequency is regulated in accordance to the indoor heat exchanger temperature. Indoor heat exchanger temp. ( ° c) 59 53 51 47 43 37 cu-g93ke cu-g123ke condition model no. Off 33 hz min 33 hz free when ...

  • Page 43: Installation Information

    – 48 – mac9509078c2 cs-g93ke no. 1 2 3 4 5 accessories part installation plate installation plate fixing screw remote control battery air purifying filter indoor unit qty. 1 6 1 2 2 no. 6 7 8 9 qty. 1 1 3 1 installation information attached accessories accessories: flaring piping kit cz-3f5, 7aen (c...

  • Page 44: Installation Information

    – 49 – cs-g93ke power sleep timer economy powerful installation information indoor / outdoor unit installation diagram length of power supply cord piping direction attention not to bend up drain hose about 1.1 m about 1.8 m right rear right bottom left rear left bottom left (front side) right instal...

  • Page 45: Servicing Information

    – 50 – mac9509078c2 cs-g93ke servicing information a. Troubleshooting 1. Rated frequency operation during troubleshooting and servicing, rated compressor operating frequency must be obtained in order to check the specification and technical data. Below are the methods used to obtain rated compressor...

  • Page 46: Servicing Information

    – 51 – cs-g93ke ● measure the electric current during operation ● measure the gas side pressure ● measure the air temperature difference servicing information lower than specified cooling mode low low low low low high 2. Troubleshooting air conditioner refrigeration cycle system in order to diagnose...

  • Page 47: Servicing Information

    – 52 – mac9509078c2 cs-g93ke 1. Relationship between the condition of the air conditioner and pressure and electric current cooling mode condition of the air conditioner insufficient refrigerant (gas leakage) clogged capillary tube or strainer short circuit in the indoor unit heat radiation defi- ci...

  • Page 48: Servicing Information

    – 53 – cs-g93ke power sleep timer p o w e r monitor powerful low high timer servicing information the diagnostic display can be seen on the receiver of the front grille. ● when an abnormality occurs, the unit automatically stops, and the timer led blinks to indicate a malfunction. At the same time, ...

  • Page 49: Servicing Information

    – 54 – mac9509078c2 cs-g93ke servicing information abnormality judgement 1 min after starting operation 4 times occurance within 40 minutes 2 times occurance within 30 minutes 4 times occurance within 30 minutes 4 times occurance within 40 minutes 4 times occurance within 20 minutes 3 times occuranc...

  • Page 50: Servicing Information

    – 55 – cs-g93ke servicing information (a) current transformer defective when the current transformer (ct) is an open circuit, total running current is less than 1.88 a and the indicated frequency is 53 hz (cu-g93ke) or 74 hz (cu-g123ke) or above. If this condition continues for 20 seconds, the abnor...

  • Page 51: Servicing Information

    – 56 – mac9509078c2 cs-g93ke servicing information a. Remote control reset when the batteries are inserted for the first time, or the batteries are replaced, all the indications will blink and the remote control might not work. If this happens, remove the back cover of the remote control and you wil...

  • Page 52: Servicing Information

    – 57 – cs-g93ke a. Indoor control board removal procedure 1. Remove the front grille 2. Remove the indoor control board servicing information d. Disassembly of parts fig. 1 fig. 2 1 remove caps and screws fig. 3 fig. 4 4 disconnect all connectors 2 remove the front grille note : remove the indoor an...

  • Page 53: Servicing Information

    – 58 – mac9509078c2 cs-g93ke servicing information b. Removal of electronic controller procedure fig. 5 fig. 6 1 remove screw 2 remove the particular plate fig. 7 fig. 8 3 remove screw 4 slide to remove pcb cover fig. 9 5 remove screw fig. 10 2 remove the particular plate 6 remove the electronic con...

  • Page 54: Servicing Information

    – 59 – cs-g93ke servicing information c. Indoor fan motor removal procedure fig. 11 fig. 12 fig. 13 fig. 14 fig. 15 1 remove screw 2 press down 2 press up tabs 1 remove screw 3 remove the front cover 4 remove the side cover 6 remove the indoor fan motor 5 remove the cross flow fan screw untitled-1 6...

  • Page 55: Servicing Information

    – 60 – mac9509078c2 cs-g93ke servicing information d. Cross flow fan removal procedure 1. Remove discharge grille fig. 16 1. Remove cross flow fan fig. 18 fig. 17 fig. 19 2 remove the screw 3 release the slot of indoor heat exchanger from the chassis 1 remove the discharge grille 2 remove the bushin...

  • Page 56: Servicing Information

    – 61 – cs-g93ke c. Outdoor electronic controller removal procedure 1. Remove the top panel and front panel 2. Remove the outdoor electronic controller 1 remove screw servicing information ! Warning • be save to return the wiring to its original position • there are many high voltage compo- nents wit...

  • Page 57: Servicing Information

    – 62 – mac9509078c2 cs-g93ke servicing information f. Propeller fan removal procedure g. Outdoor fan motor removal procedure fig. 24 fig. 25 fig. 27 fig. 26 fig. 28 5 remove the outdoor fan motor 1 remove the nut (clockwise direction) 3 remove the connector 4 remove 4 screws 2 remove the propeller f...

  • Page 58: Technical Data

    – 63 – cs-g93ke technical data • piping length characteristic (cooling) • cooling characteristic l l l l l operation characteristics cs-g93ke / cu-g93ke 35 30 40 6 5 4 3 16 15 14 13 12 0.62 0.60 0.58 0.56 2.8 2.7 2.6 2.5 2.4 2.3 230v gp: gas side piping pressure (mpa) temperature ( ° c) o: outlet ai...

  • Page 59: Technical Data

    – 64 – mac9509078c2 cs-g93ke technical data • piping length characteristic (cooling) • cooling characteristic l l l l l operation characteristics cs-g123ke / cu-g123ke 35 30 40 7 6 5 4 16 15 14 13 12 0.57 0.56 0.55 0.54 3.7 3.6 3.5 3.4 3.3 3.2 230v gp: gas side piping pressure (mpa) temperature ( ° ...

  • Page 61

    Cs-g93ke cs-g93ke – 66 – mac9609040c2 – 67 – mac9609040c2 replacement parts list no. Description & name replacement parts list no. Description & name (note) ● all parts are supplied from macc, malaysia (vendor code: 086). ● t marked parts are recommended to be kept in stock. 1 chassy complete 1 cwd5...

  • Page 63: Electronic Parts List

    – 70 – mac9509078c2 cs-g93ke electronic parts list indoor pcb part no. Description & name symbol bz1 buzzer a48040 d1, d2, d4, d5, d7, d8 diode a541ss355t d3, d6, d9 diode a54d1f60 db1 diode bridge a54d3sba60f1 fuse fuse xba2c31tr0 ic1 intergrated circuit a5278366f100 ic2 intergrated circuit a52br90...

  • Page 64: Electronic Parts List

    – 71 – cs-g93ke electronic parts list outdoor pcb part no. Description & name symbol c-fm capacitor -fm a31735 ct1 current transformer a40260 d1 diode a54au02zv0 d17, d18, d20 diode a54ra15-06v3 d19 diode a54ra15-10v3 d2, d3, d4, d5, d8 diode a54ra22-04v3 d6 diode a541ss136t d9 ~ d16 diode a54ma165t...

  • Page 65

    1 a b c d e f g 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 cs-g93k/g123k cs-g93k/g123k electronic circuit diagram • cs-g93ke • cs-g123ke cs-g93k/g123k cs-g93k/g123k d103 a54lnk5372 cn-stm1 1 2 3 4 5 5 4 3 2 1 (mx-5) (zh5) 4 3 2 1 cn-th j2 sw1 8 3 1 5 6 4 2 7 rst cs busy sck d0 d1 cs dl s1 s0 sck ...

  • Page 66

    Cs-g93k/g123k cs-g93k/g123k cs-g93k/g123k cs-g93k/g123k before using the circuit diagram, read the following carefully. * voltage measurement voltage has been measured with a digital tester at rated frequency. Use them for servicing. Voltage indication is in red at cooling and all operations. Voltag...

  • Page 67

    Cs-g93k/g123k cs-g93k/g123k electronic circuit diagram • cu-g93ke • cu-g123ke cs-g93k/g123k 0 1 2 3 0 -10 outdoor air/outdoor heat exchanger temp. Fig. 3 temperature ( ° c) v oltage (v) temp. Data outdoor air exchanger temp. Data outdoor heat 10 20 30 40 5 4 3 2 1 current data total running 15 10 0 ...

  • Page 68

    Cs-g93k/g123k cs-g93k/g123k cs-g93k/g123k print pattern indoor unit printed circuit board 1 a b c d e f g 2 3 4 5 6 7 8 9 10 11 12 13 14 • main • indicator outdoor unit printed circuit board • main g93ke-ecd2 6/20/00, 4:07 pm 2.

  • Page 69

    Printed in malaysia p981203500yh macc untitled-7 6/21/00, 9:47 am 2.