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14.1.1.

Relationship between the condition of the air conditioner and pressure and electric
current

• Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.

14.1.2.

Diagnosis methods of a malfunction of a compressor

Cooling Mode

Condition of the air

conditioner

Low Pressure

High Pressure

Electric current during operation

Insufficient refrigerant

(gas leakage)

Clogged capillary tube or

Strainer

Short circuit in the indoor unit

Heat radiation deficiency of the

outdoor unit

Inefficient compression

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 compressor becomes abnormally hot (normally 70 to 90

C).

• The difference between high pressure and low pressure becomes almost zero.

• Electric current reaches a high level abnormally, and the value exceeds the limit of an

ammeter. In some cases, a breaker turns off.

Locked compressor

• The compressor has a humming sound.

Содержание CS-C18GKV

Страница 1: ...g Connection Diagram 15 8 1 CS C18GK CU C18GK 15 8 2 CS C24GK CU C24GK 16 9 Electronic Circuit Diagram 17 10 Printed Circuit Board 18 10 1 Indoor Unit 18 10 2 Indicator 20 11 Installation Instruction 21 11 1 Indoor Unit 22 11 2 Outdoor Unit 24 12 Operation and Control 27 12 1 Cooling Operation 27 12 2 Soft Dry Operation 28 12 3 Automatic Operation 29 12 4 Operation Control 30 12 5 Indoor Fan Speed...

Страница 2: ... cycle system 47 15 Disassembly and Assembly Instructions 49 15 1 Indoor Electronic Controllers and Control Board Removal Procedures 49 15 2 Indoor Fan Motor and Cross Flow Fan Removal Procedures 52 16 Technical Data 54 16 1 Thermostat Characteristics 54 16 2 Operation Characteristics 55 17 Exploded View and Replacement Parts List 59 17 1 Indoor Unit 59 17 2 Outdoor Unit 61 ...

Страница 3: ...work follow the local national wiring standard regulation and the installation instruction An independent circuit and single outlet must be used If electrical circuit capacity is not enough or defect found in electrical work it will cause electrical shock or fire 6 Use the specified cable and connect tightly for indoor outdoor connection Connect tightly and clamp the cable so that no external forc...

Страница 4: ...er supply cord of the air conditioner to the mains using one of the following methods Power supply point shall be the place where there is ease for ease for access for the power disconnection in case of emergency In some countries permanent connection of this room air conditioner to the power supply is prohibited 1 Power supply connection to the receptacle using a power plug Use an approved power ...

Страница 5: ... 29 17 32 Width mm inch 998 39 9 32 875 34 7 16 Depth mm inch 230 9 1 16 345 13 19 32 Net Weight kg lbs 11 24 48 106 Pipe Diameter Gas mm inch 12 70 1 2 Liquid mm inch 6 35 1 4 Height Difference m ft 20 65 6 Pipe Length Range m ft 3 9 8 25 82 0 Additional Gas Amount g m oz ft 20 0 2 Refrigeration Charge Less m ft 7 5 24 6 Drain Hose Inner diameter mm 16 Length mm 650 Compressor Type Rotary 1 cylin...

Страница 6: ...ltage Cycle ø Single V 220 Hz 60 Input power W 1 72k Starting Current A 47 Running Current Cooling A 8 0 Power Factor Cooling A 98 Power factor means total figure of compressor indoor fan motor and outdoor fan motor Power Cord Number of core 3 1 5mm Length m ft 2 6 Thermostat Protection Device 2 Stage Overload Protector ...

Страница 7: ...h mm inch 998 39 9 32 875 34 7 16 Depth mm inch 230 9 1 16 345 13 19 32 Net Weight kg lbs 11 24 60 132 Pipe Diameter Gas mm inch 15 88 5 8 Liquid mm inch 6 35 1 4 Height Difference m ft 20 65 6 Pipe Length Range m ft 3 9 8 25 82 0 Additional Gas Amount g m oz ft 30 0 3 Refrigeration Charge Less m ft 7 5 24 6 Drain Hose Inner diameter mm 16 Length mm 650 Compressor Type Rotary 1 cylinder rolling pi...

Страница 8: ...urce Phase Voltage Cycle ø Single V 220 Hz 60 Input power kW 2 55 Starting Current A 63 Running Current Cooling A 12 0 Power Factor Cooling A 97 Power factor means total figure of compressor indoor fan motor and outdoor fan motor Power Cord Number of core 3 2 5mm Length m ft 2 6 Thermostat Protection Device ...

Страница 9: ...capture dust particles and bring it back with a boomerang like mechanism 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 Gold Coated Condenser for high resistance to corrosion Operation Improvement Quiet mode to provide qu...

Страница 10: ...10 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 ...

Страница 11: ...11 5 Dimensions 5 1 Indoor Unit Remote Control 5 1 1 CS C18GK CS C24GK ...

Страница 12: ...12 5 2 Outdoor Unit 5 2 1 CU C18GK CU C24GK ...

Страница 13: ...13 6 Refrigeration Cycle Diagram ...

Страница 14: ...14 7 Block Diagram ...

Страница 15: ...Motor Windings Note Resistance at 20 C of ambient temperature Resistance of Compressor Windings Note Resistance at 20 C of ambient temperature MODEL CU C18GK CONNECTION CWA951401J BLUE YELLOW 59 47 Ω YELLOW RED 60 95 Ω MODEL CU C18GK CONNECTION 2KS25S236F6A C R 1 505 Ω C S 1 809 Ω ...

Страница 16: ...tance at 20 C of ambient temperature Resistance of Compressor Windings Note Resistance at 20 C of ambient temperature MODEL CU C24GK CONNECTION CWA951399J BLUE YELLOW 59 47 Ω YELLOW RED 60 95 Ω YELLOW ORANGE 80 58 Ω MODEL CU C24GK CONNECTION 2J39S236A1A C R 0 933 Ω C S 1 584 Ω ...

Страница 17: ...17 9 Electronic Circuit Diagram ...

Страница 18: ...18 10 Printed Circuit Board 10 1 Indoor Unit TOP VIEW ...

Страница 19: ...19 BOTTOM VIEW ...

Страница 20: ...20 10 2 Indicator TOP VIEW BOTTOM VIEW ...

Страница 21: ...door unit shall be at least 2 5 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 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 shor...

Страница 22: ...he centre of the hole Another method is by putting measuring tape at position as shown in the diagram above The hole centre is obtained by measuring the distance namely 150 mm and 125 mm for left and right hole respectively Drill the piping hole at either the right or the left and the hole should be slightly slanted to the outdoor side 11 1 2 TO DRILL A HOLE IN THE WALL AND INSTALL A SLEEVE OF PIP...

Страница 23: ...23 3 For the embedded piping This can be used for left rear piping and left bottom piping also ...

Страница 24: ...vely 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 clamper 11 2 Outdoor Unit 11 2 1 INSTALL THE OUTDOOR UNIT After selecting the best location start installation according to Indoor Outdoor Unit Installation Diagram 1 Fix th...

Страница 25: ... the table Cutting and Flaring the Piping 1 Please cut using pipe cutter and then remove the burrs 2 Remove the burrs by using reamer If burrs is not removed gas leakage may be caused Turn the piping end down to avoid the metal powder entering the pipe 3 Please make flare after inserting the flare nut onto the copper pipes 11 2 3 AIR PURGING OF THE PIPINGS AND INDOOR UNIT 1 Checking a gas leakage ...

Страница 26: ...to open position with the Hexago nal wrench for the unit operation 11 2 4 CONNECT THE CABLE TO THE OUTDOOR UNIT 1 Remove the control board cover from the unit by loosening the screw 2 Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 3 2 5 mm2 flexible cord type designation 245 IEC 57 or heavier cord 3 Secure the cable onto the control board with the ...

Страница 27: ...the room temperature reaches the setting temperature set on the remote control The remote control setting temperature which takes the reading of intake air temperature sensor can be adjusted from 16 C to 30 C During cooling operation the compressor will stop running and restart as shown in below figure 12 1 1 Cooling Operation Time Diagram ...

Страница 28: ...egins Soft Dry will be switched ON for a maximum 10 minutes then Soft Dry operation will be turned OFF for a minimum 6 minutes After that the Soft Dry operation will be ON and OFF based on the setting temperature as shown in below figure However after 3 minutes of compressor off during Soft Dry OFF within 6 minutes Soft Dry restart control the indoor unit will start to operate at normal Cooling mo...

Страница 29: ... at determined operation mode until it is switched off using remote control with the setting temperature as shown in below table The setting temperature for all the operations can be changed one level up or one level down from the standard temperature as shown in below table by pressing on the temperature up or temperature down button at remote control The operation mode judging temperature and st...

Страница 30: ... the built up humidity inside a room 12 4 3 60 Seconds Forced Operation Once the air conditioner is turned on the compressor will not stop within 60 seconds in a normal operation although the intake air temperature has reached the thermo off temperature However force stop by pressing the OFF ON operation button at the remote control is permitted The reason for the compressor to force operate at mi...

Страница 31: ... reason of the difference is to reduce the starting current flow 12 4 7 Dew Prevention Control Purpose is to prevent dew formation on indoor unit air discharge area When room temperature is constant 1 C the following conditions occur for 30 minutes continuously anti dew formation will activate Remote Control setting temperature is less than 25 C Compressor is on Cooling operation mode Indoor Fan m...

Страница 32: ...l control angle change from 10 14 18 22 27 to 10 13 16 19 22 under Cooling and Soft Dry operation mode 3 Narrowing Horizontal Airflow Direction During dew prevention control Airflow Direction Auto control angle change form 0 44 to 14 30 under Cooling and Soft Dry operation mode During dew prevention control Airflow Direction Manual control angle change from 0 11 22 33 44 to 14 18 22 26 30 under Co...

Страница 33: ...hed to Hi fan speed from Lo after 70 seconds from the start of compressor This cause the room temperature to achieve the setting temperature quickly 4 During compressor stop indoor fan will operate at Lo for the beginning 20 seconds to prevent higher volume of refrigerant in liquid form returning to the compressor 5 After the compressor at turn off condition for 3 minutes indoor fan will start to ...

Страница 34: ...ual fan speed adjustment can be carried out by using the Fan Speed selection button at the remote control There are 3 types of fan speed settings Lo Me Hi 12 6 Outdoor Fan Speed Control There is only one speed for outdoor fan motor C18GK There is 2 speed for outdoor fan motor Outdoor fan speed can be changed to Hi or Lo according to outdoor temperature For Cooling or Soft Dry operation when outdoo...

Страница 35: ... control the automatic airflow is released and the airflow direction louver move up and down in the range shown in the diagram The louver can be adjusted by pressing the button to the desired louver position When stopped with remote control the discharge vent is reset and stop at the closing position 12 8 Horizontal Airflow Direction Control 12 8 1 Auto Control When the horizontal airflow directio...

Страница 36: ...n Powerful operation is set the setting temperature will be automatically decreased 3 C internally against the present setting temperature Lower temperature limit 16 C This operation automatically will be running under SHi Fan Speed Cooling Vertical Airflow Direction In Manual setting the vane will automatically shift down 10 lower than previous setting In Auto setting the vane will automatically ...

Страница 37: ...uiet operation stops when Quiet button is pressed again Stopped by OFF ON operation button Timer OFF activates Powerful button is pressed 12 11 Timer Control 12 11 1 ON Timer When the ON Timer is set by using the remote control the unit will start to operate slightly before the set time so that the room will reach nearly to the set temperature by the set time For Cooling and Soft Dry operation the...

Страница 38: ...peration the air conditioner will automatically restart after 3 to 4 minutes when the power is resumed It will start with previous operation mode and airflow direction If there are more than one air conditioner unit in operation and power failure occur restart time for each unit to operate will be decided randomly using 4 parameters intake air temperature setting temperature fan speed and air swin...

Страница 39: ...During cooling only operation Patrol button is pressed b Patrol operation stop condition When any of the following condition is fulfilled When OFF ON button is pressed During any operation with Patrol Patrol button is pressed again When e ion button is pressed When OFF Timer activates c Patrol operation disable To disable the Patrol Operation during unit start default with OFF ON button press Patr...

Страница 40: ...evel 2 Contaminated Dirtiness level sensitivity adjustment It is possible to change the gas sensor sensitivity where the Threshold value G1 G4 will be shifted accordingly a Press and release SET button b Press Timer increment Timer decrement button to select sensitivity Low Standard Default High c Confirm setting by pressing Timer Set button LCD returned to original display after 2 seconds d LCD r...

Страница 41: ...tioner and no change on LCD display During Patrol individual operation if e ion stops Airflow direction louver closed e Indicator When Patrol operation starts Patrol Sensor indicator ON When e ion operation starts based on dirtiness level e ion indicator ON f Remote Control Receiving Sound g Timer Control When ON timer activates when unit stops previous operation resumes without Patrol operation W...

Страница 42: ...starts During unit is OFF if e ion button is pressed e ion individual operation starts b e ion operation stop condition When OFF ON button is pressed to stop the operation When e ion button is pressed again When Patrol button is pressed When OFF Timer activates c e ion operation pause condition When indoor fan stop during deice odor cut control thermostat off etc e ion operation resume after indoo...

Страница 43: ...isplay c Timer control When ON timer activates when unit stops previous operation resumes without e ion operation When ON timer activates during any operation no change and carry on current operation When OFF timer activates during any operation all operation stops d Indicator When e ion operation starts e ion indicator ON e e ion Check Mode To check if e ion is malfunctioning during e ion operati...

Страница 44: ... and check the e ion AIR PURIFYING SYSTEM main connector to PCB After that press e ion button again to confirm the e ion indicator not blinking The 24 times counter will be clear after 10 minutes of normal operation or when operation stops Error Reset Method Press OFF ON button to OFF the operation Press AUTO OFF ON button at indoor unit to OFF the operation OFF Timer activates Press e ion button ...

Страница 45: ...occur at to identify the starting of Remote Control Receiving Sound Off On Mode Press Auto OFF ON button to toggle remote control receiving sound Short beep Turn ON remote control receiving sound Long beep Turn OFF remote control receiving sound After Auto OFF ON Button is pressed the 20 seconds counter for Remote Control Receiving Sound OFF ON Mode is restarted 13 2 Select Remote Control Transmis...

Страница 46: ...und will be heard LCD returns to original display after 2 seconds LCD returns to original display if remote control does not operate for 30 seconds 13 3 2 CLOCK BUTTON To change the remote control s time format Press for more than 5 seconds 13 3 3 RESET RC To clear and restore the remote control setting to factory default Press once to clear the memory 13 3 4 TIMER To change indoor unit indicator ...

Страница 47: ... 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 to the right ...

Страница 48: ...logged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient compression 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 compressor becomes abnormally hot normally 70 to 90 C The difference between high pre...

Страница 49: ...s WARNING Cautions When handling electronic controller be careful of electrostatic discharge Be sure to return the wiring to its original position There are many high voltage components within the heat sink cover so never touch the interior during operation Wait at least two minutes after power has been turned off ...

Страница 50: ...50 ...

Страница 51: ...51 ...

Страница 52: ...52 15 2 Indoor Fan Motor and Cross Flow Fan Removal Procedures ...

Страница 53: ...53 ...

Страница 54: ...54 16 Technical Data 16 1 Thermostat Characteristics Cooling Soft Dry ...

Страница 55: ...55 16 2 Operation Characteristics 16 2 1 CS C18GKV CU C18GKV ...

Страница 56: ...56 ...

Страница 57: ...57 16 2 2 CS C24GKV CU C24GKV ...

Страница 58: ...58 ...

Страница 59: ...7 Exploded View and Replacement Parts List 17 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 ...

Страница 60: ... 1 CWE241153C 19 CAP FOR DRAIN TRAY COMPLETE 1 CWH521096 20 BACK COVER CHASSIS 1 CWD932162B 21 CONTROL BOARD CASING 1 CWH102334 22 TERMINAL BOARD COMPLETE 1 CWA28C2068 CWA28C2119J 23 P S CORD 1 CWA20C2617 CWA20C2610 24 ELECTRONIC CONTROLLER MAIN 1 CWA73C2718 CWA73C2650 25 ELECTRONIC CONTROLLER POWER 1 CWA744788 26 INDICATOR COMPLETE 1 CWE39C1174 27 INDICATOR HOLDER 1 CWD932817 28 INDICATOR HOLDER ...

Страница 61: ...61 17 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 ...

Страница 62: ...APILLARY TUBE ASS Y 1 17 TUBE ASS Y CAPILLARY TUBE 1 CWT023522 CWT023554 18 3 WAY VALVE GAS 1 CWB011483 CWB011213 19 OVERLOAD PROTECTOR CO 1 CWA121074J 20 TERMINAL COVER 1 CWH171011 CWH171012 21 NUT TERMINAL COVER 1 CWH7080300J 22 CAPACITOR F M 2μF 440V 1 DS441355NPQA 23 CAPACITOR COMPRESSOR 40μF 400V 1 CWA312078 DS441606CPNA 24 HOLDER CAPACITOR 1 CWH30060 CWH30071 25 TERMINAL BOARD ASS Y 1 CWA28K...

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