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Panasonic CS-VG120KE Service Manual Download Page 77

( Model:CWA742140 ) POWER PCB

SYMBOL

PART NO.

DESCRIPTION &

NAME

REMA

RKS

BZ101

A48004

BUZZER

M

D101

A54MA165T5

DIODE

M

D102

A54RA15-10V3

DIODE

M

D103,D104

A54RA15-06V3

DIODE

M

D105

A54RA15-01V3

DIODE

M

DB101

A54D3SBA60F1

DIODE

M

FUSE

XBA2C31TRO

FUSE

M

IC101

A52C095

INTEGRATED
CIRCUIT

M

PC101,PC103

A52LP621-1B4

PHOTO COUPLER

M

PC102

A52PS2633E

PHOTO COUPLER

M

Q101

A523AA13

TRANSISTOR

M

Q102

A52STA303A

TRANSISTOR

M

RY-PWR

A00106

RELEY

M

SW101,SW102

A01059

SWITCH

M

T101

A40328

TRANSFORMER

M

ZNR101

A54C352

ZNR

M

ZNR102

A54C355

ZNR

M

( Model:CWA742133 ) MAIN PCB

SYMBOL

PART NO.

DESCRIPTION &

NAME

REMA

RKS

D1

D8,D10

A541SS355T

DIODE

M

IC1

A5278366F027

INTEGRATED
CIRCUIT

J

IC2

A52A2003GR2

INTEGRATED
CIRCUIT

M

IC3

A52MPC393G22

INTEGRATED
CIRCUIT

M

IC4

A52XL9011BF2

INTEGRATED
CIRCUIT

M

IC5

A52PST600DR

INTEGRATED
CIRCUIT

M

CIX

A53803A

INTEGRATED
CIRCUIT

J

Q1

Q3,Q7

Q9

A55DC114EKTX

TRANSISTOR

M

Q4

Q6,Q10

Q12,Q13

Q19

A55DA143XKTX

TRANSISTOR

M

Q13

A55DC143XKTX

TRANSISTOR

M

SW1

A04085

SWITCH

M

X1

A45CTS4MG02T

RESONATOR

M

( Model:CWA742134 ) OUTDOOR PCB

SYMBOL

PART NO.

DESCRIPTION &

NAME

REMA

RKS

CT

A40178

CURRENT
TRANSFORMER

M

C-FM

A31719

CAPACITOR(1.8µF/
370V)

J

D1,D3

A54RA44-02V

DIODE

M

D10

D18

A54MA165TA5

DIODE

M

D2

A541SS136T

DIODE

M

D4

D9

A54RB22-04V3

DIODE

J

D19

D21

A54RA15-06V3

DIODE

M

D22

A54RA15-10V3

DIODE

M

IC1

A5278362CW25

INTEGRATED
CIRCUIT

J

IC2

A52C050

INTEGRATED
CIRCUIT

M

IC3

A52BX8594

INTEGRATED
CIRCUIT

J

IC4

A52M51951AST

INTEGRATED
CIRCUIT

M

IC5,IC8

A52MPA2003C

INTEGRATED
CIRCUIT

M

IC6

A52AN78L10TA

INTEGRATED
CIRCUIT

J

IC7

A52AN79L10TA

INTEGRATED
CIRCUIT

J

ICX

A53804A

INTEGRATED
CIRCUIT

J

LED1

A5448YPXTA3E

LED

J

FUSE

XBA2C31TRO

FUSE

M

PC1,PC3

A52LP621-1G4

PHOTO COUPLER

M

PC2

A52LP621-3G4

PHOTO COUPLER

J

PC4

A52PS2633E

PHOTO COUPLER

M

PC5

A52LP621-1B4

PHOTO COUPLER

M

Q1

A55C075

TRANSISTOR

J

Q2,Q3,Q5

A55C1740STPQ

TRANSISTOR

M

Q4

A55C17402TPQ

TRANSISTOR

M

Q6

A55UN411FTA

TRANSISTOR

M

Q7

A55UN4116QTA

TRANSISTOR

J

Q8

A55UN421FTA

TRANSISTOR

M

RY-H

A00161

RELEY

M

RY-L

A00160

RELEY

M

T1

A40350

TRANSFORMER

J

VR1

A44EVMEASB22

VARIABLE
RESISTOR

M

X1

A45ST4MGW04T

RESONATOR

J

ZD1

A54D5.6EB3TB

TENAR DIODE

J

ZD2

A54D20EL4TB

TENAR DIODE

M

17 Electronic Parts List

(Note)

    

∙

    

Spare parts are supplied from ;

"M" is from MACC, Malaysia (Vender code : 086).
"J" is from Japan.

77

CS-VG120KE / CU-VG120KE

Summary of Contents for CS-VG120KE

Page 1: ... 1999 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law CS VG120KE CU VG120KE Room Air Conditioners Order number RAC9911057C2 ...

Page 2: ...ont panel Power Monitor Display Serviceability Self diagnosis Test Run at both Cooling and Heating rated frequency Quality Improvement High power supply voltage protection Low power supply voltage protection 9 2 PROTECTION CONTROL FOR COOLING SOFT DRY 34 9 3 PROTECTION CONTROL FOR HEATING OPERATION36 10 Installation And Servicing Air Conditioner Using R410A 37 10 1 OUTLINE 37 10 2 TOOLS FOR INSTAL...

Page 3: ...2 Functions 2 1 REMOTE CONTROL 3 CS VG120KE CU VG120KE ...

Page 4: ...2 2 INDOOR UNIT 4 CS VG120KE CU VG120KE ...

Page 5: ...5 CS VG120KE CU VG120KE ...

Page 6: ...2 3 OUTDOOR UNIT 6 CS VG120KE CU VG120KE ...

Page 7: ...d side 1 4 G gas side 1 2 L liquid side 1 4 Drain Hose Inner diameter mm 12 Length m 0 7 Power Cord length Number of core wire 2 1 m 3 core wires x 1 5mm Dimensions Height inch mm 11 7 16 290 25 25 32 655 Width inch mm 31 15 32 799 21 1 4 540 Depth inch mm 6 29 32 175 9 23 32 247 Net Weight lb kg 18 8 0 90 41 Compressor Type Scroll 1 cylinder Motor Type Brushless 4 poles Rated Output W 650 Air Cir...

Page 8: ...VG120KE Air Filter Material style P P Honeycomb Capacity Control Expansion valve Fan motor Capacitor µF VAC 1 8µF 400VAC Specifications are subject to change without notice for further improvement 8 CS VG120KE CU VG120KE ...

Page 9: ...4 Dimensions 4 1 CS VG120KE INDOOR UNIT 9 CS VG120KE CU VG120KE ...

Page 10: ...4 2 CU VG120KE OUTDOOR UNIT 10 CS VG120KE CU VG120KE ...

Page 11: ... COMPRESSOR TEMP SENSOR HEAT EXCHANGER EVAPORATOR HEAT EXCHANGER CONDENSER 2 WAY VALVE 3 WAY VALVE INTAKE AIR TEMP SENSOR HEAT EXCHANGER TEMP SENSOR HEAT EXCHANGER TEMP SENSOR EXPANSION VALVE DRYER C1 C2 CAPILARRY TUBE COMPRESSOR DISCHARGE TEMP SENSOR OUTDOOR C1 C2 11 CS VG120KE CU VG120KE ...

Page 12: ...6 Block Diagram CS VG120KE CU VG120KE 12 ...

Page 13: ...LACK WHITE RED ORANGE PINK YELLOW YELLOW GREEN GRAY CONNECTION CWA92269 Ω YELLOW BLUE YELLOW BROWN YELLOW RED 227 6 68 2 341 5 Resistance of Outdoor Fan Motor Windings Resistance of Compressor Windings CONNECTION Ω U V U W V W 1 0 1 0 1 0 13 CS VG120KE CU VG120KE ...

Page 14: ...out Setting of internal Setting Temperature The internal setting temperature can be decided as follows 8 1 1 Table a Setting Temperature Shift based on outdoor air temperature 1 Cooling Soft Dry 2 Heating 8 1 2 Table b Setting Temperature Shift based on fan speed Remote control setting fan speed Cooling Dry Heating Lo 2 0 C 2 5 C 1 0 C Me Me Me Auto fan speed 2 0 C 1 0 C Hi 2 0 C 0 5 C 8 1 3 Table...

Page 15: ...utes from the start of the operation the compressor is operating at Fc max Hz The compressor stops when the intake air temperature reaches 1 C below internal setting temperature and continues for 3 minutes When the compressor stops it will not begin operation for 3 minutes Time Delay Safety Control When the intake air temperature reaches the Compressor ON temperature the Compressor starts operatio...

Page 16: ...ion the deodorizing status starts from 4 5 6 7 If the compressor still stops operation after 3 minutes the deodorizing status will start from 6 8 2 3 Sensible Heat Control This control is to improve the feeling in high fan speed during low operation frequency When the operation frequency is less than 37Hz the fan speed will reduce When the operation frequency is above 38Hz continuously for 5 minut...

Page 17: ...he Compressor ON temperature the Compressor starts operation immediately When the Compressor stops the outdoor fan motor stops 30 seconds later 8 3 2 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 When the compres...

Page 18: ...ration the room temperature control depends on intake air temperature and internal setting temperature Basically it can be divided into 2 periods as shown below 1 When indoor fan speed is Medium or above 2 When indoor fan speed is lower than Medium 18 CS VG120KE CU VG120KE ...

Page 19: ...n for 3 minutes Time Delay Safety Control When the intake air temperature decreases to the compressor ON temperature the compressor starts immediately When the compressor stops the outdoor fan motor stops 30 seconds later 8 4 2 Anti Cold Draft Control 1 Indoor Fan Control Indoor fan speed and airflow direction varies in accordance to the indoor heat exchanger temperature as shown below a Manual Fa...

Page 20: ...n occurs when the deice operation starting signal is generated This happens when one of the following conditions occurs However the first deice operation will begin 1 hour after start of heating operation Outdoor Heat Exchanger Temp Th 3 Outdoor Heat Exchanger Temp Th Outdoor Temp To Case 1 120 minutes continuously Th 6 for 3 min continuously To 1 Case 2 80 minutes continuously Th 7 for 3 min cont...

Page 21: ...ation starting signal is generated indoor fan outdoor fan 4 way valve are turned off and compressor operates at 95Hz for 30 seconds Deice operation starts During deice operation the compressor operating frequency is set at 103Hz Deice will end when the outdoor heat exchanger temperature rises to 16 C or after 11 minutes 21 CS VG120KE CU VG120KE ...

Page 22: ...te 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 order to sense the indoor intake air temperature and outdoor air temperature for 20 seconds At this time Power LED is blinking After the operation mode is selected Power LED light up There are 4 determination charts when auto...

Page 23: ...ling 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 immediately started When the outdoor air temperature is more than 25 C and the intake air temperature is over 16 C cooling operation is immediately started The operation mode is judged every 30 minutes When the operation mode Heating Cooling or Soft Dry is decided t...

Page 24: ...ontrol Auto Fan 11 23 5 Auto Fan Auto Fan Powerful 12 24 1 Sensible Heat Control Auto Fan 13 24 3 Auto Fan Sensible Heat Control Auto Fan Powerful Me Manual Fan Powerful On Timer preparatory operation Manual Fan Powerful Temporary Operation 14 24 6 Me Manual Fan Powerful On Timer preparatory operation Manual Fan powerful Sensible Heat Control Auto Fan Temporary Operation 15 24 9 Auto Fan Auto Fan ...

Page 25: ...n Motor DC V Cooling Soft Dry Remarks Heating Remarks Manual Auto MAnual Auto 30 32 6 SHI Manual Fan Powerful On Timer preparatory operation Manual Fan Powerful Test Run 31 36 0 SSHI Maximum Capacity Operation 25 CS VG120KE CU VG120KE ...

Page 26: ... depend on heat exchanger temperature Each time the Fan Speed will move 1 rank up or down 3 Cooling Operation at SHi Speed During Cooling operation Indoor Fan speed is set at SHi when the following conditions occur Outside air temperature is 30 C or above Compressor operates at 73Hz and above Remote control setting fan speed is High Indoor intake air temperature is 24 C or above Remote control set...

Page 27: ... control 3 37 Airflow direction manual 0 8 18 28 37 Anti dew formation control 3 11 5 20 28 5 37 Dry Airflow direction auto 0 37 Anti dew formation control 3 37 Airflow direction manual 0 8 18 28 37 Anti dew formation control 3 11 5 20 28 5 37 Stop 138 Sitting angle 1 Airflow Direction Manual By pressing the remote control airflow direction setting switch the blade will move to the indicated angle...

Page 28: ...erates for 5 minutes or above Operation frequency is less than 45Hz When the indoor heat exchanger temperature is decreased to 13C or below the control is cancelled and the indoor fan speed will resume from Lo to Low 8 11 POWERFUL MODE OPERATION When the powerful mode is selected the internal setting temperature will shift to achieve the setting temperature quickly 1 Cooling Operation 2 Soft Dry O...

Page 29: ...ed After another hour 0 5 C will be increased again During sleep shift operation indoor fan speed operates at SLo 2 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 sleep shift operation indoor fan speed operates at ...

Page 30: ...mperature and outdoor air temperature in order to determine the starting time for preparatory operation The Power LED blinks during sampling The time of the preparatory operation will start before the On Timer set time 1 Cooling Soft Dry 2 Heating 8 14 AUTO RESTART CONTROL If there is a power failure operation will automatically be restarted when the power is resumed It will start with the previou...

Page 31: ... or longer to switch off the signal receiving sound Press the AUTO button for 10 seconds or longer again to switch on the signal receiving sound 8 17 INDOOR POWER RELAY CONTROL The power relay turns on when one of the indoor LED lights on The power relay turns off when all of the indoor LEDs lights off When the air conditioner is stopped during operation the power relay stays ON for 3 minutes The ...

Page 32: ...r Transistor Overheating Prevention Control When the power transistor temperature rises to 110 C the OLP goes into operation and compressor stops immediately The compressor is restarted when the power transistor temperature decreases to 95 C after 3 minutes Time Delay Safety Control 5 Compressor Overheating Prevention Control When the temperature of compressor rises to 95 C the frequency is reduce...

Page 33: ...t Control When the electric current to the power transistor exceeds the set value DC 35 4A the compressor stops The compressor restarts after 3 minutes If within 30 seconds the set value exceeds again after start of the compressor all indoor and outdoor relays will be turned off and all the LEDs will blink 10 DC Reset When the voltage supply DC to power transistor is below the set value i e 178 5V...

Page 34: ...r 20 minutes continuously anti dew formation is controlled 1 Indoor intake air temperature is 24 C or above 2 Outdoor air temperature is less than 30 C 3 Remote control setting temperature is less than 25 C During anti dew formation control compressor operates at 55Hz and vertical airflow direction blade moves down slightly as shown in Airflow Direction Control Indoor fan speed increases by 1 rank...

Page 35: ...temperature decreases to 37 8 C 5 Electrical Components Overheating Protection When outdoor air temperature is 38 5 C or above and the compressor operating frequency is 9Hz or above total running current set value is reduced refer to Total Running Current Control and the operating frequency is reduced The protection control is cancelled when the outdoor air temperature decreases to 37 5 C or compr...

Page 36: ...essor operates at 92Hz 2 Outdoor Air Temperature Control The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below This control will begin 50 seconds after the compressor starts 3 High Pressure Control The compressor operating frequency is regulated in accordance to the indoor heat exchanger temperature 36 CS VG120KE CU VG120KE ...

Page 37: ...f R410A and R22 R410A R22 Composition wt R32 R125 50 50 R22 100 Boiling point C 51 4 40 8 Vaporizing pressure 25 C 1 56 Mpa 15 9 kgf cm 0 94 Mpa 9 6 kgf cm Saturated vapor density 64 0 kg m 44 4 kg m Flammability Non flammable Non flammable Ozone destroying point ODP 0 0 055 Global warming point GWP 1730 1700 b Compositional change pseudo azeotropic characteristics R410A is a pseudo azeotropic mix...

Page 38: ...valve service port on the outdoor unit has been changed Also to increase its ability to withstand pressure the opposing dimensions have been changed for the refrigerant pipe flaring size and flare nut Accordingly when installing or servicing refrigerant piping you must have both the R410A and ordinary tools listed below Table 3 Tools for Installation transferring or replacement Type of work Ordina...

Page 39: ...s Table 5 Conventional wrenches R410A wrenches For 1 4 opposite side x torque 17mm X 18 N m 180 kgf cm 17mm X 18 N m 180 kgf cm For 3 8 opposite side x torque 22mm X 42 N m 420 kgf cm 22mm X 42 N m 420 kgf cm For 1 2 opposite side x torque 24mm X 55 N m 550 kgf cm 26mm X 55 N m 550 kgf cm 4 Manifold gauge Because the pressure is higher for the R410A type the conventional type cannot be used Table ...

Page 40: ...lower setting the sensitivity for R134a at 1 the level for R410A will drop to 0 6 For detecting small amounts of gas leakage use the electric gas leak detector for HFC refrigerant Detection sensitivity with R410A is about 23 g year Fig 6 Electric gas leak detector for HFC refrigerant 8 Electronic scale for refrigerant charging Because of the high pressure and fast vaporizing speed of R410A the ref...

Page 41: ...ize of the charging hose fitting 1 2 UNF 20 threads The packing must also be made of an HFC resistant material Fig 9 Charging orifice and packing 10 2 3 R410A Tools Which Are Usable for R22 Models Table 9 R410A tools which are usable for R22 models R410A tools Usable for R22 models 1 Copper tube gauge for clearance adjustment OK 2 Flaring tool clutch type OK 3 Manifold gauge NG 4 Charging hose NG ...

Page 42: ...cedure and precautions for flaring work a Cut the pipe Use a pipe cutter and cut slowly so the pipe will not be deformed b Remove burrs and clean shavings from the cut surface If the shape of the pipe end is poor after removing burrs or if shavings adhere to the flared area it may lead to refrigerant leaks To prevent this turn the cut surface downward and remove burrs then clean the surface carefu...

Page 43: ...tightening torque N m kgf cm 1 4 6 35 14 18 140 180 18 180 3 8 9 52 33 42 330 420 42 420 1 2 12 70 55 550 55 550 10 3 3 Storing and Managing Piping Materials 1 Types of piping and their storage The following is a general classification of the refrigerant pipe materials used for ACs Because the gas pressure of R410A is approximately 1 6 times as high as that of R22 copper pipes with the thickness s...

Page 44: ...ocess for at least 15 minutes then check to make sure the low pressure gauge has reached 0 1 MPa 76 cmHg Once the vacuum process has finished fully close the handle Lo of the manifold gauge and stop the vacuum pump operation then remove the charging hose that is connected to the vacuum pump adaptor Leave the unit in that condition for 1 2 minutes and make sure that the needle of the manifold gauge...

Page 45: ...rves Buried sections of the piping also cannot be checked 2 Pipe cleaning A large quantity of refrigerating machine oil mineral oil adheres to existing pipes due to the refrigeration cycle circulation If the pipes are used just as they are for the R410A cycle the capacity will be lowered due to the incompatibility of this oil with the R410A or irregularities may occur in the refrigeration cycle Fo...

Page 46: ...ose the valve Lo of the manifold gauge and stop the operation of the unit 2 5 11 Quickly remove the charging hose from the service port 6 If you stop midway through the refrigerant that is in the cycle will be discharged 12 After putting on the caps for the service port and operating valve inspect around the caps for a gas leak 6 7 Fig 13 Re charging refrigerant 10 4 6 Brazing As brazing requires ...

Page 47: ...zing temperature and with a minimum of heating area 3 Overheating Protection In order to prevent components near the brazed part from overheating damage or quality deterioration due to flame or heat take adequate steps for protection such as 1 by shielding with a metal plate 2 by using a wet cloth and 3 by means of heat absorbent 4 Movement during Brazing Eliminate all vibration during brazing to ...

Page 48: ... unit of this room air conditioner shall be installed on the wall in a height of at least 2 3m 11 2 2 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 discharged air Keep the spaces indicated by arrows from wall ceiling fence ...

Page 49: ...11 3 INDOOR OUTDOOR UNIT INSTALLATION DIAGRAM 49 CS VG120KE CU VG120KE ...

Page 50: ...ting specification 1 Cooling 73Hz a Press the Test Run button on the indoor unit The air conditioner starts operation at Cooling rated frequency b Short the service terminal CN S of the outdoor printed circuit board The air conditioner starts operation at Cooling rated frequency 2 Heating 92Hz Keep pressing the Test Run button switch off and on the Power Switch then release the Test Run button The...

Page 51: ...em with the power source malfunction of a compressor or 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 following table Normal Pressure and Outlet Air Temperature Standard Condition Indoor fan speed High Outdoor temperature is 35 C at cooling mode and 7 C at heating mode Compressor operates ...

Page 52: ... during operation 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 Carry out the measurements of pressure electric current and temperature fifteen minutes after an operation is stated 52 CS VG120KE CU VG120KE ...

Page 53: ...ostic Button on the Remote Control is pressed the type of the previous abnormality and the protection control works will be displayed on the receiver for approximately 10 seconds By starting cooling operation using TEST RUN button and press the Diagnostic Button at the remote control the previous abnormalities are deleted Depending on the type of abnormality you may be able to override the abnorma...

Page 54: ...utes Compressor Outdoor P C Board F95 Over heating protections 3 times occurrence within 30 minutes Pipe sensor F96 Outdoor power transistor module overheating protection 4 times occurrence within 30 minutes Excess refrigerant Improper heat radiation Power transistor F97 Outdoor compressor overheating protection 4 times occurrence within 20 minutes Insufficient refrigerant Compressor F98 Total run...

Page 55: ...two remote controls set up the remote control B A switch SW1 The unit is set to A when it is shipped By adding a jumper wire to the remote control side and shorting the Jx at the indoor printed circuit board it is possible to select 4 types of transmission codes including one at time of delivery condition 1 Remote control Indoor printed circuit board Note Switch SW B A J B Switch SW1 Jx 1 A A At p...

Page 56: ...over as shown in the Fig 1 Fig 1 12 4 2 Indoor Fan Motor removal procedure 1 Remove the connector CN MTR GREEN of Fan Motor and connector CN STM WHITE of stepping motor from the electronic controller Release the earth wire YELLOW GREEN from the control board and sensors from its holders Refer Fig 1 2 Remove the Control Board The Control Board can be removed by releasing the top left and right tabs...

Page 57: ...an Motor Loosen the Fan Motor securing screw at the junction with Cross Flow Fan Fig 5 Fig 5 Remove the particular piece and the Fan Motor can be taken off as shown in Fig 6 and 7 Fig 6 Fig 7 57 CS VG120KE CU VG120KE ...

Page 58: ...an Motor Fig 8 Fig 8 12 4 3 Cross Flow Fan removal procedure 1 Remove the Indoor Fan Motor Refer to the removal procedure of the Indoor Fan Motor Fig 9 Fig 9 2 Remove the Air Discharge Grille by taking off the screws that hold the Air Discharge Grille and then pull the Air Discharge Grille in a down and forward direction Fig 10 Fig 10 58 CS VG120KE CU VG120KE ...

Page 59: ...hanger pull the Heat Exchanger forward left side and remove the Cross Flow Fan Fig 12 Fig 12 12 4 4 Removal procedure of Display Electronic Controller Release the Display Electronic Controller from the tab as shown in Fig 13 Move the Display Electronic Controller to the right and pull it towards you Fig 13 59 CS VG120KE CU VG120KE ...

Page 60: ...the electronic controller 2 Pull the electronic controller towards you as shown in Fig 14 Fig 14 3 Remove the connector as shown in Fig 15 Fig 15 4 Bend the 2 electronic controller in L shape as shown in Fig 16 and release the main electronic controller from the power electronic PCB Fig 16 60 CS VG120KE CU VG120KE ...

Page 61: ...WARNING 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 mines after power has been turned OFF Fig 17 5 Remove the control box Tow screws 6 Remove the control box cover 7 Remove the Power transistor module Two screws Fig 18 Fig 18 61 CS VG120KE CU VG120KE ...

Page 62: ...13 Technical Data 13 1 OPERATION CHARACTERISTICS 62 CS VG120KE CU VG120KE ...

Page 63: ...all operations Voltage indication is in Red at heating Intake air temperature Temperature setting Discharge air temperature Pipe temperature Cooling 27 16 17 15 Heating 20 30 40 50 Indications for capacitor a Unit µ µF P pF Indications for resistance a K KΩ M MΩ W watt Not indicated 1 4 W Diode without indication MA165 Circuit Diagram is subject to change without notice for further development 14 ...

Page 64: ...ampling time 20 sec 0 24 hours ON OFF timer 1 hour 1 min Heating SSHi fan shift 120 min 12 sec Cooling SHi fan speed shift 30 min 3 sec Hot start forced completion 4 min 0 Anti fog discharge control 30 min 3 sec 90 min 9sec 180 min 18 sec 420 min 42 sec Auto mode judgement interval 30 min 3 sec Sleep mode time shift 1 hour 6 sec After Hot start Deice 2 min 12 sec 14 2 2 Outdoor Name Time Test Mode...

Page 65: ...anger Temp Data Outdoor Air Outdoor Heat Exchanger Temp 10 0 10 20 30 40 0 1 2 3 50 60 70 80 90 100 110 120 130 140 1 2 3 4 Compressor Dischange Temp Data Compressor DischangeTemp Sensor Thermistor Characteristics 20 40 60 80 100 120 140 0 10 20 30 40 50 60 70 D102 ELECTRONIC CONTROLLER PC BOARD POWER BZ RELAY RY PWR R111 1K D105 BUZZER BZ101 1 2 3 POWER SWITCH RY PWR CWA00106 TERMINAL CWA28C508 F...

Page 66: ... D6 D5 D4 R27 5 1K R25 5 1K D3 D2 D1 R24 10K R23 10K R22 10K R31 750Ω R32 750Ω R11 10K R10 1K R12 2K C5 0 01µ R71 10K R6 32 4K R8 150Ω R5 510Ω D10 C3 1000P R9 7 5K C4 1000P R3 1K R64 100K X1 4MHz C2 0 022µ C20 16V T 1 5µ C1 0 1µ C27 0 01µ C9 50V 10µ 10 11 12 5 6 7 LC1 R4 5 1K R2 10K R1 510Ω L1 I O G C21 0 01µ R65 430Ω R66 430Ω R67 430Ω CHECK PIN 10 0 10 20 30 40 50 0 10 20 30 40 50 60 70 Sensor Th...

Page 67: ...2 0 01µ C34 1000P C35 1000P C36 1000P R36 18K C23 1000P R25 2 4K R22 47K 3W R23 19 1K R21 47K 3W ZD2 C19 0 01µ 5 6 8 4 2 1 2 2 2 1 PC2 R2 560Ω 4 3 2 1 PC1 R1 560Ω C1 25V 47µ C8 25V 270µ R10 20K D4 D3 D1 T1 4 3 2 1 XH 4 4 2 3 1 CN L XH 4 XH 3 XH 3 3 2 1 7 3 2 1 3 2 1 XH 3 3 YEL BLU RED XH 3 RED 3 2 1 XH 3 BLU RED BLK BLU PNK YEL VLT GRY ORG BRN 3 2 1 XH 3 YEL 1 C2 25V 47µ C3 25V 47µ C4 25V 100µ I O...

Page 68: ...CS VG120KE CU VG120KE 68 ...

Page 69: ...15 Printed Circuit Board 15 1 CS VG120KE INDOOR UNIT 69 CS VG120KE CU VG120KE ...

Page 70: ...70 CS VG120KE CU VG120KE ...

Page 71: ...15 2 CU VG120KE OUTDOOR UNIT POWER SUPPLY 71 CS VG120KE CU VG120KE ...

Page 72: ...MAIN INDICATOR 72 CS VG120KE CU VG120KE ...

Page 73: ...16 Exploded View Replacement Parts List 16 1 CS VG120KE 16 1 1 Exploded View 73 CS VG120KE CU VG120KE ...

Page 74: ...7 PC BOARD WITH COMPONENT INDICATOR 1 M 21 CWA74919 PC BOARD WITH COMPONENT RECEIVER 1 M 22 CWA16C161 FUSE COMPLETE 1 M 23 CWA50C562 SENSOR COMPLETE 1 M 24 CWH13406 CONTROL BOARD TOP COVER 1 M 25 CWH13C284 CONTROL BOARD FRONT COVER 1 M 27 CWA75C614 REMOTE CONTROL COMPLETE 1 M 28 CWE11C880 FRONT GRILLE COMPLETE 1 J 29 CWE22C287 INTAKE GRILLE COMPLETE 1 M 30 CWD93C070 PARTICULAR PIECE 2 M 31 CWD0021...

Page 75: ...16 2 CU VG120KE 16 2 1 Exploded View 75 CS VG120KE CU VG120KE ...

Page 76: ...414A CONTROL BOARD 1 J 31 CWH10872 CONTROL BOARD 1 J 32 CWD66242 BOX SHAPED PLATE 1 J 33 CWH13431 CONTROL BOARD COVER 1 J 34 CWA742134 PC BOARD WITH COMPONENT 1 J 35 CWA74184 PC BOARD WITH COMPONENT 1 J 36 CWA47038 RESISTOR FOR ELECTRONIC 1 J 37 CWA31137 SH CAPACITOR 1 M 38 CWA30199 CAPACITOR 1 M 39 CWA58180 HEATSINK 1 J 40 A54S25VB60 DIODE 2 M 41 CWA55C127 TRANSISTOR 1 J 42 CWA49C196 NOISE FILTER...

Page 77: ...MBOL PART NO DESCRIPTION NAME REMA RKS CT A40178 CURRENT TRANSFORMER M C FM A31719 CAPACITOR 1 8µF 370V J D1 D3 A54RA44 02V DIODE M D10 D18 A54MA165TA5 DIODE M D2 A541SS136T DIODE M D4 D9 A54RB22 04V3 DIODE J D19 D21 A54RA15 06V3 DIODE M D22 A54RA15 10V3 DIODE M IC1 A5278362CW25 INTEGRATED CIRCUIT J IC2 A52C050 INTEGRATED CIRCUIT M IC3 A52BX8594 INTEGRATED CIRCUIT J IC4 A52M51951AST INTEGRATED CIR...

Page 78: ...MEMO ...

Page 79: ...MEMO ...

Page 80: ...Printed in Japan MS1299SO ...

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