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Hitachi RAC-07GH4, Руководство по обслуживанию

Холодильная установка Hitachi RAC-07GH4 - это высококачественное устройство для кондиционирования воздуха. Скачайте бесплатное сервисное руководство на manualshive.com для дополнительной информации об установке, обслуживании и использовании этого продукта. Надежность и эффективность в одном устройстве!

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– 35 –

CIRCUIT DIAGRAM

Remote Control

1

2

3

4

5

6

7

8

10

11

13

14

15

16

17

19

20

9

12

18

SEG19

SEG18

SEG17

SEG16

SEG21

SEG24

SEG25

SEG26

SEG27

SEG28

NC

NC

NC

NC

NC

NC

NC

NC

NC

SEG20

SEG5

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

COM3

COM2

COM1

COM0

SEG14

SEG13

SEG12

SEG11

SEG13

SEG9

SEG8

40

39

38

37

36

35

34

33

31

30

28

27

26

25

24

22

21

32

29

23

40

39

38

37

36

35

34

33

31

30

28

27

26

25

32

29

64

63

62

61

60

59

58

57

56

55

54

53

52

51

50

49

48

47

46

45

44

43

41
42

65

66

67

68

69

70

71

72

74

75

77

78

79

80

73

76

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

24
23

SEG20

SEG21

SEG22

SEG23

SEG24

SEG25

SEG26

SEG27

SEG28

SEG29

SEG30

SEG31

SEG32

SEG33

SEG34

SEG35

SEG19

SEG18

SEG17

SEG16

SEG15

SEG14

SEG13

SEG12

SEG11

SEG10

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

SEG0

SEG43

SEG42

SEG41

SEG40

P40

P41

P42

P43

P00

P01

P02

P03

P10

P11

P12

P13

D0

D1

D2

D3

D4

D5

D6

D7

D8

D9

BEEP

P20

P30

P31

NCVL C1

VL C2

VL C3

XC IN

XC OUT

VDD

X OUT

X IN

RESET

CARR

P23

P22

P21

VSS

IC    1

  

M3455OM6A-504FP

LCD 1

C8

50v/1u

K 1

D3

RB425D(1/2)

K2K3

K4

K5

P10

P11

P12

K6

K7 K8

K8 K10

K11K12

K18

K17

K15 K16

K13 K14

D0

D1

D2

D3

R1

100k

SW1

R2

P

100k

R3

100k

R4

100k

R5

Q1

2SC3443

or 2SC2982

R6

R7

R9

D2

D1

D1 D2

EL-1L7

D3

(1/2)

RB425D

R10

12M

K19

X1

C9

R11

R15

R16

R13

R14

910kHz

105

104

104

150k

X2

kHz

C4

C5

C6

C7

18p

22p

R12

220k

220K

220k

100k

100k

32.768

C1

C2

C3

220p

220p

334

R6 R9

24(1/8W)

R8

330

SW

-187-2P

Key matrix table

P10

Input

Output

D0

D1

D2

D3

P11

P12

Door open

Door shut

Door open

Door shut

–

Off timer

–

Sleep

–

On timer

Hour up

Start/Stop

Super silent cooling

Start/Stop

Room temperature up

Operation selection

Reservation

–

Hour down

–

Room temperature down

Fan speed selection

Super cooling

Cancel

–

Day 

•

present time

–

Automatic swing

Door open

Door shut

Содержание RAC-07GH4

Страница 1: ...ASIC MODE 41 REFRIGERATING CYCLE DIAGRAM 47 DESCRIPTION OF MAIN CIRCUIT OPERATION 49 AUTO SWING FUNCTION 53 SERVICE CALL Q A 54 PARTS LIST AND DIAGRAM 63 RAS 07GH4 RAC 07GH4 RAS 09GH4 RAC 09GH4 RAS 14GH4 RAC 14GH4 COOLING HEATING INDOOR UNIT RAS 07GH4 780 280 210 9 0 After installation RAS 07GH4 RAS 09GH4 RAS 14GH4 RAC 14GH4 RAC 07GH4 RAC 09GH4 OUTDOOR UNIT RAC 07GH4 INDOOR UNIT RAS 09GH4 OUTDOOR ...

Страница 2: ... be accurately calibrated in advance 7 In installing the unit having been repaired be careful to prevent the occurence of any accident such as electrical shock leak of current or bodily injury due to the drop of any part 8 To check the insulation of the unit measure the insulation resistance between the power cord plug and grounding terminal of the unit The insulation resistance should be 1MΩ or m...

Страница 3: ...of parts Even rejected goods should be handled in the same way Fig 1 Conductive Container 2 When any part is handled uncovered in counting packing and the like the handling person must always use himself as a body earth Make yourself a body earth by passing one M ohm earth resistance through a ring or bracelet 3 Be careful not to touch the parts with your clothing when you hold a part even if a bo...

Страница 4: ...the screwed part using a rag plate Soldering iron Grounding wire Fig 4 Grounding a soldering iron Use a high insulation mode 100V 10M or higher when ordinary iron is to be used 7 In checking circuits for maintenance inspection or some others be careful not to have the test probes of the measuring instrument shortcircuit a load circuit or the like Metal plate of aluminium stainless steel etc Staple...

Страница 5: ...n and re start in a moment there is occasion that the cooling and heating operation does not start for 3 minutes it is not abnormal and this is the result of the operation of IC delay circuit This IC delay circuit ensures that there is no danger of blowing fuse or damaging parts even if operation is restarted accidentally 5 This room air conditioner should not be used at the cooling operation when...

Страница 6: ...APACITY TIME DELAY FUSE THERMOSTAT REMOTE CONTROL SWITCH LIQUID CRYSTAL RAS 07GH4 RAS 09GH4 RAS 14GH4 20 W NO NO NO NO NO 3 15A G4A YES YES YES NO 450NR YES IC YES 20 W 30 W 1 5μF 450 VAC 2 5μF 450VAC NO 20μF 450 VAC 25μF 450 VAC YES NO NO NO NO NO NO NO NO 10 A 15 A NO NO 1050g 10m UNIT MAX PIPES REFRIGERANT CHARGING VOLUME Refrigerant 410A RAC 07GH4 RAC 14GH4 RAC 09GH4 5RS080 5RS132 650g 600g 5R...

Страница 7: ...e as possible above 50mm when installed on the ceiling of balcony above 200mm The difference in height between the indoor and outdoor unit should be kept max 5m The connecting pipe no matter big or small should all be insulated with insulation pipe and then wrapped with vinyl tape The insulator will deteriorate if it is not wrapped with tape The connection of insulated drain hose Please use insula...

Страница 8: ...y above 100mm above 100mm give clearance as wide as possible Plug The difference in height between the indoor and outdoor unit should be kept max 5m The connecting pipe no matter big or small should all be insulated with insulation pipe and then wrapped with vinyl tape The insulator will deteriorate if it is not wrapped with tape The connection of insulated drain hose Please use insulated drain ho...

Страница 9: ...of electric shock exists Do not install the unit near a location where there is flammable gas The outdoor unit may catch fire if flammable gas leaks around it Please ensure smooth flow of water when installing the drain hose CAUTION PRECAUTIONS DURING SHIFTING OR MAINTENANCE PRECAUTIONS DURING OPERATION Avoid an extended period of direct air flow for your health W A R N I N G Should abnormal situa...

Страница 10: ... deflector and drips down occasionally This will wet your furniture Therefore do not operate under such condition for a long time If the amount of heat in the room is above the cooling or heating capability of the unit for example more people entering the room using heating equipments and etc the preset room temperature cannot be achieved Do not climb on the outdoor unit or put objects on it Pleas...

Страница 11: ...OOR UNIT Drain pipe Condensed water drain to outside Connecting cord and insulation pipe for piping Air inlet Back Left side Air outlet Drain pipe Condensed water drain to outside Connecting cord and insulation pipe for piping Air inlet Back and Left side Air outlet WIDTH mm 780 700 750 MODEL RAS 07GH4 09GH4 14GH4 RAC 07GH4 09GH4 RAC 14GH4 HEIGHT mm 280 570 570 DEPTH mm 210 210 280 MODEL NAME AND ...

Страница 12: ...e is operated for a total of about 100 hours the FILTER lamp lights to indicate that it is time to clean the filter The lamp goes out when the POWER SWITCH set to OFF and ON again OPERATION LAMP This lamp lights during operation The OPERATION LAMP flashes in the following cases during heating 1 During preheating For about 2 3 minutes after starting up 2 During defrosting Defrosting will be perform...

Страница 13: ...set the sleep timer TEMPERATURE buttons Use these buttons to raise or lower the temperature setting Keep pressed and the value will change more quickly TIME button Use this button to set and check the time and date RESET buttons FUNCTION selector Use this button to select the operating mode Every time you press it the mode will change from AUTO to HEAT to DEHUMIDIFY to COOL and to FAN cyclically F...

Страница 14: ... Operation starts with a beep Press the button again to stop operation You can raise or lower the temperature setting as necessary by maximum of 3 C Press the temperature button and the temperature setting will change by 1 C each time The preset temperature and the actual room temperature may vary somewhat depending on conditions The display does not indicate the preset temperature in the AUTO mod...

Страница 15: ...s been reached HI Economical as the room will become warm quickly But you may feel a chill at the beginning MED Quiet LOW More quiet Set the desired room temperature with the TEMPERATURE buttons the display indicates the setting The range of 18 22 C is recommended as the room temperature for heating If the temperature setting is 20 C the room temperature will be controlled at around 20 C The tempe...

Страница 16: ...ss of the temperature setting The function will stop the indoor unit will stop emitting air as soon as the room temperature becomes lower than the setting temperature Set the desired room temperature with the TEMPERATURE button the display indicates the setting The range of 20 26 C is recommended as the room temperature for dehumidifying Press the START STOP button Dehumidifying operation starts w...

Страница 17: ...RE button the display indicates the setting The range of 25 28 C is recommended as the room temperature for cooling If the temperature setting is 27 C the room temperature will be controlled at around 27 C The temperature setting and the actual room temperature may vary some how depending on conditions Press the START STOP button Cooling operation starts with a beep Press the button again to stop ...

Страница 18: ... setting temperature is large fan starts to run at HI speed After room temperature reaches the preset temperature the cooling operation which changes the fan speed and room temperature to obtain optimum conditions for natural healthful cooling will be performed For the cooling operation FAN OPERATION You can use the device simply as an air circulator Use this function to dry the interior of the in...

Страница 19: ...EL button The RESERVED sign goes out with a beep and the TIMER lamp turns off on the indoor unit 1 Set the current month and day with the TIMER control button 1 Press the OFF TIMER button The OFF mark blinks on the display 1 Press the ON TIMER button the ON mark blinks on the display 2 Set the turn off time with the TIMER control button Press the RESERVE button 3 Press the ON TIMER button so that ...

Страница 20: ...complete Example The device will turn off at 11 00p m Example The device will automatically turn on earlier so that the preset temperature can be reached at 7 00 a m The setting of the turn on time is now complete 4Set the turn on time with the TIMER control button 5 Point the signal window of the remote controller toward the indoor unit and press the RESERVE button The ON mark starts lighting ins...

Страница 21: ...roller The TIMER lamp lights with a beep from the indoor unit When the sleep timer has been set the display indicates the turn off time Example If you set 3 hours sleep time at 11 38 p m the turn off time is 2 38 a m 2 Press the SLEEP button and set the sleep timer The device will be turned off by the sleep timer and turned on by on timer How to Cancel Reservation Point the signal window of the re...

Страница 22: ...he sleep timer Fan Heating The room temperature will be controlled 5 C below the temperature and the FAN SPEED will be set to LOW setting 60 minutes after the setting of the sleep timer Operation with the sleep timer If date or current time is not set sleep timer can not be set If you set the sleep timer after the off on off or off on timer has been set the sleep timer becomes effective instead of...

Страница 23: ...ion where the air outlet closes Vertical Vertical about 15 about 60 about 45 about 30 When cooling dehumidifying When heating CAUTION In Cooling operation do not keep the horizontal air deflector swinging for a long time Some dew may form on the horizontal air deflector and dew may drop RESET Adjustment of the conditioned air in the upward and downward directions The horizontal air deflector is au...

Страница 24: ...e old batteries 2 Install the new batteries The direction of the batteries should match the marks in the case 1 Do not use new and old batteries or different kinds of batteries together 2 Take out the batteries when you do not use the remote controller for 2 or 3 months CAUTION Push and pull to the direction of arrow ...

Страница 25: ...with your wake up time in the morning This will enable you to enjoy a comfortable room temperature Please use the timer effectively Dusty air filter will reduce the air volume and the cooling efficiency To prevent from wasting electric energy please clean the filter every 2 weeks Please pay attention to the room temperature and air flow direction when operating the unit for baby children and old f...

Страница 26: ...e used for a long period of time please switch off the power from the mains If the power from mains remains ON the indoor unit still consumes about 8W in the operation control circuit even if it is in OFF mode Warning To protect the whole unit during lightning please stop operating the unit and remove the plug from the socket OFF Interference From Electrical Products Caution To avoid noise interfe...

Страница 27: ...ied out only by qualified service personal Before cleaning stop operation and switch off the power supply CAUTION CAUTION Do not bend the air cleansing and deodorizing filter as it may cause damage to the structure NOTE In case of removing the air cleansing and deodorizing filters please follow the above procedures The cooling capacity is slightly weakened and the cooling speed becomes slower when...

Страница 28: ... soft bristle brush Allow filters to dry in shade 3 Re insert the air cleansing and deodorizing filter to the filter frame Set the filter with FRONT mark facing front and slot them into the original state After attaching the filters push the front panel at three arrow portions as shown in figure and close it CAUTION Do not wash with hot water at more than 40 C The filter may shrink When washing it...

Страница 29: ...ators or signal receiver of indoor unit it causes trouble Method of removing the front panel Be sure to hold the front panel with both hands to detach and attach it CAUTION Do not splash or direct water to the body of the unit when cleaning it as this may cause short circuit Never use hot water above 40 C benzine gasoline acid thinner or a brush because they will damage the plastic surface and the...

Страница 30: ... in your plug proceed as follows The wire which is coloured green and yellow must be connected to the terminal in the plug which is marked with the letter E or by the earth symbol or coloured green or green and yellow The wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black The wire which is coloured brown must be connected to the termin...

Страница 31: ... from the fan casing which is cooled and then gradually warmed as operation stops The odor will possibly be emitted from the room air conditioner because the various odor emitted by smoke foodstuffs cosmetics and so on sticks to it So the air filter and the evaporator regularly must be cleaned to reduce the odor Please contact your sales agent immediately if the air conditioner still fails to oper...

Страница 32: ...m 6 Connecting cable 2 5mm dia x 3 AB Line 1 6mm dia x 2 CD Line is used for the connection D C B A L N D C B A Indoor Unit Outdoor Unit Connecting Cord ø1 6 or ø2 0 ø2 0 Line cord RED BRN WHT BLK Power cord Connecting cord Drain hose Approx 370 Approx 70 Narrow pipe 06 35 Wide pipe 09 52 Mounting plate 210 780 280 50 Discharge grill Top air suction grill 50 47 205 Top air suction grill Front pane...

Страница 33: ...AC 14GH4 Air outlet Handle Air inlet 18 490 Handle Viewed from P 157 245 225 8 10 500 35 12 16 55 570 428 700 243 53 236 210 10 482 517 135 75 77 P 500 12 37 124 57 165 56 28 750 852 76 570 95 166 559 26 16 280 195 280 15 10 340 340 10 320 ...

Страница 34: ... 19 3 66 7 ON 24 6 76 3 26 7 80 1 OFF 24 0 75 2 27 3 81 1 ON 32 6 90 7 34 2 94 5 OFF 32 0 89 6 35 3 95 5 MODEL RAS 07GH4 09GH4 14GH4 RAC 07GH4 09GH4 14GH4 PHASE RATEDVOLTAGE SINGLE RATED FREQUENCY DC35V 220 240V TEMPERATURE C F OUTPUT POLE NUMBER 6 20 W 20W 30W 30W 50 Hz 35V 5V RED YELLOW BLUE M BLACK CAPACITOR RA RED INTERNAL THERMAL FUSE GRAY RM RESISTANCE VALUE 20 C 75 C RM 355 1 RA 252 6 RM 25...

Страница 35: ...nditioner has been operated for a long time with the capillary tubes clogged or crushed or with too little coolant check the color of the refrigerant oil inside the compressor If the color has been changed conspicuously replace the compressor RM 5 233 RA 5 621 EXTERNAL OVERLOAD RELAY INTERNAL PROTECTOR YES NO ORANGE RM WHITE RA RED CAPACITOR S RED C WHITE M OR R ORANGE RAC 07GH4 RAC 09GH4 RAC 14GH...

Страница 36: ... 33 WIRING DIAGRAM MODEL RAS 07 09 14GH4 RAC 07 09 14GH4 RAS 63CHA1 RAC 63CHA1 ...

Страница 37: ...SEG1 SEG0 SEG43 SEG42 SEG41 SEG40 P40 P41 P42 P43 P00 P01 P02 P03 P10 P11 P12 P13 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 BEEP P20 P30 P31 NCVL C1 VL C2 VL C3 XC IN XC OUT VDD X OUT X IN RESET CARR P23 P22 P21 VSS IC 1 M3455OM6A 504FP LCD 1 C8 50v 1u K 1 D3 RB425D 1 2 K2K3 K4 K5 P10 P11 P12 K6 K7 K8 K8 K10 K11K12 K18 K17 K15 K16 K13 K14 D0 D1 D2 D3 R1 100k SW1 R2 P 100k R3 100k R4 100k R5 Q1 2SC3443 or 2SC2...

Страница 38: ... 37 PRINTED WIRING BOARD LOCATION DIAGRAM MODEL RAS 07GH4 09GH4 14GH4 RAC 07GH4 09GH4 14GH4 ...

Страница 39: ...OM TEMPERATURE THERMISTOR HEAT EXCHANGER THERMISTOR WIRELESS RECEIV ING CIRCUIT INDOOR FAN MOTOR OUTDOOR UNIT COMPRESSOR OUTDOOR FAN MOTOR RELAY POWER RELAY STICK RELAY REVERSING VALVE RELAY EXTERNAL FAN RELAY BUZZER CIRCUIT OPERATION TIMER FILTER INDICATION LAMP AUTO SWEEP MOTOR MICROCOMPUTER CLOCK CIRCUIT INITIALIZING CIRCUIT RESET CIRCUIT MICROCOMPUTER AX 3U M FM M F M REVERSING VALVE R V ...

Страница 40: ...L L L S S L Automatic L XL HI MED LO and Stop are repeated according to the thermostat signal and time HI MED LO and Stop are repeated according to the thermostat signal and time MED LO and Stop are repeated according to the thermostat signal and time LO and Stop are repeated according to the thermostat signal and time The Automatic speed mode for each operation mode is used independent of the set...

Страница 41: ...es automatic NO Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Cooling Heating Item Operation switching Temporary switch Service switch Nice temperature reservation Automatic fresh defrosting Defrosting Pd cut 1 Pd cut 2 Pd cut 3 Heating load reduction External fan relay Reversing valve relay Reversing valve lock protection Sleep circuit Heater operation at the time of sensor dehumidif...

Страница 42: ...T 60 60 min 60 60 min Obtain OT moved up time depending on the temperature difference from the table below 10 NICE TEMPERA TURE reservation Heating Cooling Setting temp Room temp Time min Setting temp Room temp Time min 00 01 00 00 00 00 02 00 00 01 25 03 00 10 02 25 05 00 15 03 25 07 00 20 05 25 08 00 30 07 25 10 00 30 08 25 11 00 45 10 25 13 00 40 11 25 60 13 25 16 00 50 16 25 19 00 60 19 25 22 ...

Страница 43: ...G COOLING CAPILLARY STRAINER CHARGING PIPE COMP CONDENSER REVERSING VALVE S TANK 3S VALVE EVAPORATOR MODEL RAS 09GH4 RAC 09GH4 COMP CONDENSER REVERSING VALVE HEATING CAPILLARY STRAINER CHARGING PIPE CHECK VALVE STRAINER HEATING COOLING CAPILLARY S TANK 3S VALVE 2S VALVE EVAPORATOR ...

Страница 44: ... 48 MODEL RAS 09GH4 RAC 09GH4 HEATING CAPILLARY STRAINER CHARGING PIPE HEATING COOLING CAPILLARY EVAPORATOR 2S VALVE 3S VALVE S TANK COMP CONDENSER REVERSING VALVE ACCUMULATOR STRAINER CHECK VALVE ...

Страница 45: ...ion independently Their operations are shown in Fig 1 1 ON OFF button Timer reserve button Sleeping Operation lamp Timer lamp When OFF timer sleeping is set Start Stop Start OFF time When ON timer is set ON time ON OFF button Timer reserve button Operation lamp Timer lamp Stop Start Fig 1 1 Timer operation ...

Страница 46: ...is turned ON the potential of Q511 s base rises and Q511 is turned ON Since Q511 s collector is set to LO at this time Q512 is turned OFF and the reset input of the micro computer is set to Lo The DC 5V line voltage has already become 5V at this time and the micro computer starts operation When the power is turned OFF the voltage of the DC 12V line decreases When it becomes about 7V ZD511 is turne...

Страница 47: ...put 4kHz sound 4 Initial setting IC301 The pre heating operation start value ratings of the compressor maximum rotation speed etc are preset in the micro computer 5 Receive circuit Infrared signals from the wireless remote controller are received by the light receiving unit and output after being amplified and shaped 8 7 IC301 E 2PROM 6 5 5V 0V R302 Micro computer AX 3U 3 4 R305 5V C301 C302 D304 ...

Страница 48: ...e room temperature turn on and off the disconnect switch To protect the compressor wait at least 3 minutes before turning on again The fan speed is MED Does not operate is 12V is not generated in the control circuit When the service switch is used for operation each change switch is overridden Setting the service switch to Cooling turns on the Stick relay and Power relay Micro computer AX 3U FORCE...

Страница 49: ...MODE ONE SWING CLOSING AIR DEFLECTOR 1 DOWNWARD 2 UPWARD INITIALIZE 1 DOWNWARD INITIALIZE 1 DOWNWARD 2 UPWARD STOP AT THE MOMENT START SWINGING 1 DOWNWARD 2 UPWARD 3 DOWNWARD STOP AT THE MOMENT START SWINGING 1 DOWNWARD 2 UPWARD 3 DOWNWARD STOP AT THE MOMENT ONE SWING CLOSING AIR DEFLECTOR 1 DOWNWARD 2 UPWARD INITIALIZE AT NEXT OPERATION INITIALIZE AT NEXT OPERATION STOP DURING ONE SWING STOP DURI...

Страница 50: ...fying operation the actual room temperature is compared with the room tem perature setting when starting the operation and the opera tion is as follows 1 When actual room tem perature room tempera ture setting The operation is according to the room temperature setting on the remote con troller 2 When actual room tem perature room tempera ture setting Regardless of the room temperature setting the ...

Страница 51: ...peed followed by MED fan speed for 30 seconds and then by HI fan speed A8 Q7 The operation stops during a heating operation while the room temperature is set at 30 Q9 If a heating operation is per formed when the exterior temperature is high the op eration may stop to protect the equipment A9 The outdoor fan does not move at a heating operation by the service switch It is not a trouble When heatin...

Страница 52: ... The room temperature cannot be controlled at an automatic operation Q14 It is automatically set as follows At cooling Set at 27 C At dehumidifying Set slightly lower than room temperature The room temperature setting can be raised 3 C by or lowered 3 C by V A14 When changing the room temperature setting in an automatic operation the next automatic operation mode is determined by new room temperat...

Страница 53: ...ing the time setting A16 In the Automatic fan speed mode the indoor fan changes to MED and LO fan speed Q17 It is not a trouble The cold wind preventive function operates A17 Set the temporary switch normal In case of ON timer the operation does not start at a preprogrammed time but a little earlier Q18 Nice temperature reservation The Nice temperature reservation functions The operation starts ea...

Страница 54: ...2 pressing causes no transmission either Q21 The room temperature is settable within the range of 16 32 and not beyond A21 The timer cannot be set Q22 Is the current time set The timer cannot be set unless the clock is adjusted correctly A22 V The current time disap pears soon Q23 The current time disappears soon and the timer settting indication takes a precedence A23 When setting the current tim...

Страница 55: ...the time over the pre programmed time As soon as the prepro grammed time is reached the time setting disappears A24 After selecting a Dehumidifying operation mode the fan speed mode remains LO fan speed Q25 At a Dehumidifying operation the LO fan speed is forcibly selected A25 ...

Страница 56: ...no continuity check the electric parts and replace if abnormal 5 Thermal fuse for Terminal board 2 Before checking the varistor detach a terminal NO Operates by setting the service switch to forced cooling Return the service switch to Normal Set the remote controller to an operation status and press the ON OFF button Is the level LO approx 0 5V between driver IC701 pin 11 power relay and 0V NO NO ...

Страница 57: ... diagnosis by indoor indicator lamp Fan Speed RAS 07GH4 RAC 07GH4 3 Replace faulty part 4 Wait for 3 minutes before forced re operation by the service switch CN6 BLUE RED V Cool Heat 20 8 15 6 12 5 11 0 20 8 17 9 15 0 15 0 HI MED LO SLEEP MODE RAS 09GH4 RAC 09GH4 RAS 14GH4 RAC 14GH4 Cool Heat 21 3 18 0 13 7 11 9 23 0 19 7 16 6 16 6 Cool Heat 27 0 20 9 15 8 13 0 28 4 23 6 19 3 19 3 ...

Страница 58: ...peration Unit is under forcible operation or under balancing after forcible operation Check force cooling switch at indoor electrical IC 401 Data read wrongly In case that data read from IC401 is wrong IC401 data is not in order Heat exchanger thermistor error Heat exchanger thermistor open or short circuit detected 1 Thermistor 2 Indoor control circuit board Room thermistor error Room thermistor ...

Страница 59: ... 63 PARTS LIST AND DIAGRAM INDOOR UNIT MODEL RAS 07GH4 RAS 09GH4 RAS 14GH4 1 12 16 15 20 23 25 11 10 7 20 19 27 24 13 17 18 21 6 26 8 5 4 3 9 2 14 ...

Страница 60: ... SWEEP MOTOR 13 HWRAS 25YH4 933 1 FRONT COVER ASSY 14 HWRAS 25YH4 936 1 FRONT PANEL 15 HWRAS 25YH4 937 1 AIR FILTER R 16 HWRAS 25YH4 938 1 AIR FILTER L 17 PMRAS 51CHA1 011 1 REMOTE CONTROL ASSEMBLY 18 PMRAS 10C3M 003 1 REMOTE CONTROL SUPPORT 19 PMRAS 10C8M 003 1 THERMISTOR SUPPORT 20 PMRAS 07CH2 012 1 THERMISTOR 21 HWRAS 25YH4 920 1 POWER SWITCH 22 PMRAS 07GH4 003 1 P W B MAIN 23 PMRAS 07GH4 004 1...

Страница 61: ...UTO SWEEP MOTOR 13 HWRAS 25YH4 933 1 FRONT COVER ASSY 14 HWRAS 25YH4 936 1 FRONT PANEL 15 HWRAS 25YH4 937 1 AIR FILTER R 16 HWRAS 25YH4 938 1 AIR FILTER L 17 PMRAS 51CHA1 011 1 REMOTE CONTROL ASSEMBLY 18 PMRAS 10C3M 003 1 REMOTE CONTROL SUPPORT 19 PMRAS 10C8M 003 1 THERMISTOR SUPPORT 20 PMRAS 07CH2 012 1 THERMISTOR 21 HWRAS 25YH4 920 1 POWER SWITCH 22 PMRAS 09GH4 001 1 P W B MAIN 23 PMRAS 07GH4 00...

Страница 62: ...TO SWEEP MOTOR 13 HWRAS 25YH4 933 1 FRONT COVER ASSY 14 HWRAS 25YH4 936 1 FRONT PANEL 15 HWRAS 25YH4 937 1 AIR FILTER R 16 HWRAS 25YH4 938 1 AIR FILTER L 17 PMRAS 51CHA1 011 1 REMOTE CONTROL ASSEMBLY 18 PMRAS 10C3M 003 1 REMOTE CONTROL SUPPORT 19 PMRAS 10C8M 003 1 THERMISTOR SUPPORT 20 PMRAS 07CH2 012 1 THERMISTOR 21 HWRAS 25YH4 920 1 POWER SWITCH 22 PMRAS 14GH4 001 1 P W B MAIN 23 PMRAS 07GH4 004...

Страница 63: ... 67 7 10 8 9 11 5 4 15 14 17 18 12 16 6 50 30 31 52 51 13 3 1 2 PARTS LIST AND DIAGRAM INDOOR UNIT MODEL RAC 07GH4 RAC 09GH4 53 ...

Страница 64: ...HANDLE 12 PMRAC 09CHA1 903 1 D GRILL 13 PMRAC 07GH4 901 1 COMPRESSOR 14 PMRA 08GF 904 3 COMPRESSOR RUBBER 15 PMRA 08GF 905 3 COMPRESSOR NUT 16 PMRAC 07GH4 902 1 CONDENSER 17 PMRAC 07GH4 904 1 2S VALVE 18 PMRAC 07GH4 905 1 3S VALVE 30 PMRAC 10C8 905 1 FAN MOTOR CAPACITOR 31 PMRAC 51CHA1 903 1 TERMINAL BOARD 4P 50 PMRAC 07GH4 906 1 COMPRESSOR CAPACITOR 51 PMRAC 07GH4 903 1 REVERSING VALVE 52 PMRAC 0...

Страница 65: ...MRAC 05CV 908 1 HANDLE 12 PMRAC 09CHA1 903 1 D GRILL 13 PMRAC 09GH4 901 1 COMPRESSOR 14 PMRA 08GF 904 3 COMPRESSOR RUBBER 15 PMRA 08GF 905 3 COMPRESSOR NUT 16 PMRAC 09GH4 902 1 CONDENSER 17 PMRAC 07GH4 904 1 2S VALVE 18 PMRAC 07GH4 905 1 3S VALVE 30 PMRAC 10C7 904 1 FAN MOTOR CAPACITOR 31 PMRAS 51CHA1 903 2 TERMINAL BOARD 4P 50 PMRAC 09GH4 903 1 COMPRESSOR CAPACITOR 51 PMRAC 07GH4 903 1 REVERSING ...

Страница 66: ... 70 5 4 1 8 9 15 7 6 18 17 14 16 10 11 12 22 3 3 23 20 24 21 2 53 PARTS LIST AND DIAGRAM OUTDOOR UNIT MODEL RAC 14GH4 ...

Страница 67: ...0 PMRAC 51CHA1 903 1 TERMINAL BOARD 4P 11 PMRAC 09GH4 903 1 COMPRESSOR CAPACITOR 12 PMRAC 10C7 904 1 FAN MOTOR CAPACITOR 13 PMRAC 14GH4 902 1 HANDLE 14 PMRAC 51CA1 901 1 CABINET 15 PMRAC 09CHA1 903 1 D GRILL 16 PMRAC 14GH4 905 1 SIDE PLATE R 18 PMRAC 51CA1 909 1 TOP COVER 21 PMRAC 07GH4 903 1 REVERSING VALVE 22 PMRAC 14GH4 903 1 STRAINER CAPILLARY 23 PMRAC 14GH4 904 1 STRAINER CONDENSOR 24 PMRAC 0...

Страница 68: ...HITACHI PM NO 0000E Printed in Malaysia RAS 07GH4 RAC 07GH4 RAS 09GH4 RAC 09GH4 RAS 14GH4 RAC 14GH4 ...

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