SERVICE MANUAL
Contents
1. RESISTOR CAPACITOR DIODE BUZZER SYMBOL SEAT FORM SYMBOL VALUE F VOLT V USEAT FORM SYMBOL PART NO USEAT FORM SYMBOL PART NO USEAT FORM R2 PWR H C1 2200P 250 PWR 1 D1NL20U PWR A 821 MAIN H R3 WR 2 1000P PWR 02 155120 PWR R4 WR H C3 0 047u 50 PWR R 155120 PWR R5 WR 4 0 047u 50 F PWR R 04 SF5LC20U PWR 87 WR 5 0 19 50 F PWR R 5 155120 PWR R8 WR 6 0 50 F PWR R SURGE ABSORBER R9 WR 0102 U1GU44 MAN C SYMBOL PART NO USEAT FORM R10 WR 8 1000 50 PWR 5 101 DSA 102MA 05 PWR H R11 WR C10 4 50 PWR R 0401 HN1DO3FU MAN C R12 WR VS1 450NR12D PWR R13 WR 0901 155355 MAN 52 450NR12D PWR2. N LINE CORD POWER SWITCH o THERMAL FUSE 5 s L B OMPRESSOR e GRN3 EARTH SCREW 4 110 PTH1 EARTHSCREW AA e 5 Its eie EARTHSCREW pI n M pa L m 110 4 1 22 3 gt _4 5 ZD 5 s iz EL a lt gt si YD Q T 2 i o R8 3s 702 E 1 Cae tot st 5 22 22 4 9 9 89789 rea usss sashan aca Ado c adea ME O 3 4
3. 30 MAIN PARTS COMPONENT THERMOSTAT Room Temperature Thermistor Thermostat Specifications MODEL RAS 10G5 14G5 THERMOSTAT MODEL IC OPERATION COOL INDICATION 17 3 63 1 62 1 16 16 7 TEMPERATURE C F INDICATION 25 3 77 5 2 247 76 5 INDICATION 33 3 91 9 32 32 7 90 9 FAN MOTOR Fan Motor Specifications RAS 10G5 14G5 RAC 10G5 14G5 PHASE SINGLE RATED VOLTAGE 220 240V RATED FREQUENCY 50 Hz OUTPUT 30W POLE NUMBER 6 INTERNAL THERMAL FUSE CONNECTION RM 350 0 RESISTANCE VALUE RA 195 0 Q RM 425 6 237 1 31 COMPRESSOR MOTOR Compressor Motor Specifications MODEL RAC 10G5 COMPRESSOR MODEL ASG108CV B7AT PHASE SINGLE RATED VOLTAGE 220 240 V RATED FREQUENCY 50 Hz LOCKED ROTOR CURRENT 18A POLE NUMBER 2 WHITE ORANGE CONNECTION L lama ma asss RED 20 3 75 RESISTANCE VALUE 68 F RA 3 34 Q 75 C RM 4 56 167 F RA 4 06 EXTERNAL OVERLOAD RELAY YES INTERNAL PROTECTOR NO
4. 6 The sign in the figure indicates prohibition Q Indicates the instructions that must be followed e Please keep this manual after reading PRECAUTIONS DURING INSTALLATION Do not reconstruct the unit Water leakage fault short circuit or fire may occur if you reconstruct the unit by yourself A e Please ask your sales agent or qualified technician for the installation of your unit Water leakage short circuit or fire may occur if you install the unit by yourself WARNING e Please use earth line Do not place the earth line near water or gas pipes lightning conductor or the earth line of telephone Improper installation of earth line may cause electric shock Be sure to use the specified piping set for R410A Otherwise this may result in broken copper pipes or faults A a circuit breaker the danger of electric shock exists e Do not install near location where there is flammable gas The outdoor unit may catch CAUTION fire if flammable gas leaks around it Please ensure smooth flow of water when installing the drain hose circuit breaker should be installed depending on the mounting site of the unit Without PRECAUTIONS DURING SHIFTING OR MAINTENANCE Should abnormal situation arises like burning smell please stop operating the unit and turn off the circuit breaker Contact your agent F
5. Mounting plate Front panel Discharge grill Horizontal air diflector 190 400 090 70 I I I T z Drain pan Bn When piping is drawn horizontally i yr exchange the drain hose for the m Drain hose Drain cap connection port Approx 108 Approx 370 ae 70 Narrow pipe 26 35 Wide pipe 29 52 for RAS S10CAK 16 8 S Power cord Wide pipe 912 70 for RAS S13CAK S Connecting cord o 5 55 V deflector 30 60 Wireless remote controller Note 1 Servicing space of 100mm or more is required on the left and right sides of the indoor unit and also 50mm or more space is required above the unit Insulated pipes should be used for both the narrow and wide dia pipes Height different of the piping between the indoor unit and the outdoor unit should be kept max 5m Power supply cord length is about 2m Connecting cable 1 5mm dia x 3 AB Line is used for the connection o ON Indoor Unit Outdoor Unit We gt Line Connecting Cord gt 29 MODEL RAC 10G5 RAC 14G5 759
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7. 255 N gnat ed ts Fig 7 1 Auto Sweep Motor Circuit Horizontal air deflectors e Fig 7 1 shows the Auto sweep motor drive circuit the signals shown in Fig 7 2 are output from pins 6 of the micro computer Horizontal air Micro computer pins Step width deflectors 10ms Horizontal air deflectors amp Fig 7 2 Micro computer Output Signals e As the micro computer s outputs change as shown in Fig 7 2 the core of the auto sweep motor is excited to turn the rotor Table 7 1 shows the rotation angle of horizontal air deflectors Table 7 1 Auto sweep Motor Rotation Rotation angle per step Time per step ms Horizontal air deflectors motor 0 0879 10 Deflectors 7 47 850 51 8 Room Temperature Thermistor Circuit e Fig 8 1 shows the room temperature e The voltage at depends on the room thermistor circuit temperature as shown in Fig 8 2 5 ETITI ITANA TANE EEEE SAREE 5V Micro computer Room temperature thermistor 30 Thermistor S 5 Fig 8 1 0 10 20 30 40 Room temperature C Fig 8 2 9 Heat exchanger temperature thermistor circuit 5V Heat exchanger temperature thermistor Micro computer AX 3U Hex Thermistor Hex Thermistor Range
8. Inspire the Next RAS 10G5 RAC 10G5 SERVICE MANUAL TECHNICAL INFORMATION REFER TO THE FOUNDATION MANUAL FOR SERVICE PERSONNEL ONLY RAS 14G5 RAC 14G5 CONTENTS SPECIFICATIONS 5 HOW USE 8 CONSTRUCTION AND DIMENSIONAL DIAGRAM 29 MAIN PARTS COMPONENT 31 WIRING DIAGRAM 34 CIRCUIT DIAGRAM 37 PRINTED WIRING BOARD LOCATION DIAGRAM 39 BLOCK DIAGRAM 41 BASIC MODE TT 43 REFRIGERATING CYCLE DIAGRAM 46 DESCRIPTION OF MAIN CIRCUIT OPERATION 47 AUTO SWING FUNCTION r 55 SERVICE CALL Q amp A 56 PARTS LIST AND DIAGRAM 60 RAC 10G5 RAC 14G5 SPECIFICATIONS WALL TYPE INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT MODEL RAS 10G5 RAC 10G5 RAS 14G5 RAC 14G5 POWER SOURCE 1 PHASE 50 Hz 220 230V 1 PHASE 50 Hz 220 230V TOTAL INPUT W 870 900 1210 1230 TOTAL AMPERES A 4 00 3 95 5 70 5 50 2 90 2 90 3 02 3 01 9890 9890 12 460 12 630 TYPE COOLING CAPACITY DIMENSIONS mm
9. 1 YOLVINOYID 9 ONIN 330 OWH3H 440 TVNH31NI NO OWH3H D NO TVNH3LNI LNAWOW 8015 ONIONIMS ONIONIMS LYVLS YOLVINOYIS LNSWOW 8015 ONIONIMS D ONIDNIMS 1HVIS ONIN LNAWOW dOLS ONIMS NOILLVH3dO LXAN LV AZIIVILINI quvMdn 401991430 S9NISO19 9NIMS 3015 LAdNI A3M 2 333 NOILVOISIOAdS 5 1 1331330 AGOW NOl1VH3dO NOIlVd3dO NOILIGNOO 1N3S3Hd NOILONNA TWNODIS LAdNI ONIMS 55 SERVICE CALL Q amp A Cooling operation While cooling the compressor 1 sometimes stops abruptly Check whether frost sticks on the heat exchanger of indoor unit or not is low frost may stick on the Wait for 3 4 minutes until the heat exchanger of indoor frost melts unit If cooling is performance when the room temperature M 2 Dehumidifying operation The fan speed does not Q2 change during a dehu midifying operation P Cold air comes out during dehumidifying operation Q
10. NET WEIGHT SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT MARCH 2011 Refrigeration amp Air Conditioning Division 10 Any inflammable thing should never Check the grounding to see whether SAFETY DURING REPAIR WORK In order to disassemble and repair the unit in question be sure to disconnect the power cord plug from the power outlet before starting the work If it is necessary to replace any parts they should be replaced with respective genuine parts for the unit and the replacement must be effected in correct manner according to the instructions in the Service Manual of the unit If the contacts of electrical parts are defective replace the electrical parts without trying to repair them After completion of repairs the initial state should be restored Lead wires should be connected and laid as in the initial state Modification of the unit by user himself should absolutely be prohibited Tools and measuring instruments for use in repairs or inspection should be accurately calibrated in advance 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 To check the insulation of the unit measure the insulation resistance between the power cord plug and gro
11. ADJUSTING THE AIR DEFLECTORS 1 Adjustment of the conditioned air the upward and downward directions The horizontal air deflector is automatically set to the proper angle suitable for each operation The deflector can be swung up and down continuously and also set to the desired angle using the AUTO SWING button If the angle of the deflector is changed it will not return to the auto set position after operations start unless the operation mode is switched x AUTO SWING button is pressed once the horizontal air deflector swings up and down If the button is pressed again the deflector stops in its current position Several seconds about 6 seconds may be required before the deflector starts to move 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 2 Adjustment of the conditioned air to the left and right Hold the vertical air deflector as shown in the figure and adjust the conditioned air to the left or right 20 HOW EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER When using the remote control if there is no response from the air conditioner unit and or the remote control has fading and dim displays the batteries in the remote control device need to be removed and replaced with ne
12. AUTOSRESTART 429 82 604 R603 CANCEL HEAT EXCHANGE THERMISTOR um D REMOCONID 08 7 8627 Remocon ra A gett 15 0501 5 NORMAL 5 lt amp 5 000 5 lt gt 114 C602 cEEZSESEZZESSS ES LIRO a 9 0 2 9 9 69 60 62 8614 zh sii i SERVICE SW ane 1 m i E e INDICATION PCB S z PHSPTOP BAH p 1 OQ 12V als elg Bo 85 8556 855 Fe 5 XH 4P TOP BLACK 0141 5 PA 5 33 HUI UNE 0 5 SV Qo 5 HATERMINAL 9 3 9 3 1 m TEMP SWITCH SUI i e GN m D T ROOM THERMISTOR pa p R722 t9 8 t gt 2 R724 MUT e 0 2 R211 WY SN Ue Ko c eo Eoo C Os e o fus 0 6 8 FK ut Skt AE 52 tk Eas Ce eei
13. Ae ne Al ot ee MAIN PCB cc MM E 3 9 ott D Q 8 SESE XA 5P TOP RED INDOOR FAN MOTOR 0901 cas ICP2 TAL 1901 Nd 8 IM S 8912 01 14 love YELLOW i 2 3 A Q902 AR 5 N eG S 0901 STS 15 5 R 5 in R911 R913 wn 5 50 ae N O e e e 4 501 ia 1 gt 6 2 gt gt G STEPPING MOTOR FOR 3 lt HORIZONTAL DEFLECTOR CN6 3 gt 4 4 5906 os ols 2 358252520 aes 0 12 Z 727272 272050 bd bd E PHLSP TOP RES 0 D H 64 63 62 60 60 69 68 87 66 65 64 63 62 61 60 09 z g 2 j E s 3 8 i sZ 6 i C205 s s 7257 DIN O Qac EEPROM PULSEMOTOR AGS QU QN HEATER RELAY 47 5 R622 room 7 4 gt 3 ROOM THERMISTOR 48 us 6 3 gt 47 HEX THERMISTOR VDFANLo 69 GY 5G restrastree 5 8 5 amp RX 95 gt 6 TEST MODE REVVALVE 43 NMI D 7 NOTUSE O DFAN 02 8 PWM FEEDBACK AYOK POWER RELAY 07 9 FAN OVERCURRENT OPERATION RELAY v CN 10 AVss ABNORMAL I D DC FAN 39 PHQPTOP za EST x THERMISTOR o AMAND e
14. Please Adjust Suitable Temperature For Baby And Children Please pay attention to the room temperature and air flow direction when operating the unit for baby children and old folks who have difficulty in movement 22 FOR USER S INFORMATION The Air Conditioner And The Heat Source The Room Caution w If the amount of heat in the room is above the cooling 9 capability of the air conditioner for example more F people entering the room using heating equipments and etc the preset room temperature cannot be 7 Not Operating For A Long Time When the indoor unit is not to be used for a long period of time please switch off the power from the mains If the power from mains remains the indoor unit still consumes about 8W in the operation control circuit even if it is in OFF mode When Lightning Occurs A Warning To protect the whole unit during lightning please stop operating the unit and remove the plug from MON the socket Interference From Electrical Products A Caution To avoid noise interference please place the indoor unit and its remote controller at least 1m away from electrical products 2 interference place at least 1m away Inverter type fluorescent lamp 23 ATTACHING THE AIR PURI
15. 3 0 H3MOd 2 LINN F 5 LINN HOOQNI SOvL SO0L OVH SOvVI SO0L SVH INVHO VIG X90019 41 BASIC MODEL RAS 10G5 14G5 RAC 10G5 14G5 Operation mode gee Cooling Sensor dehumidification Control function Set circulation velocity LO sleep operation Set 2 deg up temperature 1 60 minutes Start stop switch Sleep key i i The set temperature _ W 5 after sleep shift in sensor Tmerame dehumidification operation is limited by 16 C Notes 60 minutes after the sleep key is switched on sleep operation is started When the sleep key is switched on during OFF timer operation the OFF timer will be canceled Table 1 Specifications Other detailed specifications 1 When the room temperature rises within Item Operation mode Cooling Sensor dehumidification Control function 1 Start stop button Start stop button basic mode Operation lamp prp Start stop button Reservation OFF timer Operation lamp Timer lamp Timer memor OFF timer during stop Cancel Change of th
16. ACAUTION 1 0 5 second 0 5 second off Remote control is disabled while the Timer lamp is flashing To check operation turn off the power switch and turn it on again 59 PARTS LIST AND DIAGRAM INDOOR UNIT MODEL RAS 10G5 14G5 STIS X e 2 NS S PS ri Z SS Z 3 9 aii N p x MODEL RAS 10G5 PART NO RAS 10G5 PMRAS S10CYT Q TY UNIT PARTS NAME CABINET PMRAS 25YH4 MOUNTING PLATE PMRAS 07GH4 PMRAS 260GA FAN MOTOR TANGENTIAL FAN PMRAS 25YH4 P BEARING ASSY PMRAS 10CYT PMRAS S10CYK FAN MOTOR BASE CYCLE ASSY PMRAS 25YH4 BEARING COVER PMRAS S13CY PIPE SUPPORT CO o o oc PMRAS S10CY DRAIN PAN ASSY PMRAS 25YH4 AUTO SWEEP MOTOR 10 PMRAS 10G5 SE COVER FRONT COVER ASSY PMRAS 10G5 FRONT PANEL PMRAK 25N6 PMRAK 25N6 AIR FILTER R AIR FILTER L PMRAS 10CE9G REMOTE CONTROL ASSEMBLY PMRAS 10C9G PMRAS 10C8M REMOTE CONTROL SUPPORT THERMISTOR SUPPORT PMRAS 260GHA THERMISTOR PMRAS S10CAK PMRAS S10CX P W B MAIN P W B POWER SW SUPPLY 61 MODEL RAS 14G5 PART NO RAS 14G5 PMRAS 08CH8 Q TY UNIT PARTS NAME CABINET PMRAS 25YH4 MOUNTING
17. Please ensure that outdoor mounting frame is always stable firm and 7 without defect If not the outdoor unit may collapse and cause danger Do not splash or direct water to the body of the unit when cleaning it as 6 this may cause short circuit e Do not use any aerosol or hair sprays near the indoor unit This chemical can adhere on heat exchanger fin and blocked the evaporation water di flow to drain pan The water will drop on tangential fan and cause water 22 splashing out from indoor unit e Please switch off the unit and turn off the circuit breaker during cleaning 6 the high speed fan inside the unit may cause danger Q 8 e Turn off the circuit breaker if the unit is not to be operated for a long period e Do not climb on the outdoor unit or put objects on it e Do not put water container like vase on the indoor unit to avoid water dripping into the unit Dripping water will damage the insulator inside the unit and causes short circuit Do not place plants directly under the air flow as it is bad for the plants NES e When operating the unit with the door and windows opened the room humidity is always above 8096 and with the air deflector facing down or moving automatically for a long period of time water will condense on the air deflector and drips down occasionally This will wet your furniture Therefore do not operate under such condition for a long time e f the amount of heat
18. R14 WR_ D902 D1FL20U MAIN A VS3 450NR12D PWR 102 681 50 D MAIN R 0904 155133 PWR R100 C103 10 MAIN R 0905 155133 PWR 8101 104 01 25 MAN 8102 C105 000P 50 MAIN C 08110 035860 PWR R103 C106 01 50 F MAN R SYMBOL PARTNO USEAT FORM 8104 C107_ 0 0470 25 C MAIN LD201 SLR332YC YELI IND H R105 C C108 1000P 50 C MAN 10202 SLR332DC ORG IND 8106 C109 tu 50 D MAIN R LD203 SLR332MC GRN IND 8107 6110 5u __ 275 F 8108 C111 415 __ 275 F PWR LD721 SLR332YC YEL MAIN H R109 C112 0000P 250 C PWR R110 H C113 0000P 250 PWR 8111 114 5 __ 275 F PWR H SYMBOL NO T FORM 115 0 450 PWR 70 HZ2B2TA E PWR CURRENT PROTECTION 8141 116 100008 250 PWR H 202 7716 28 PWR A SYMBOL PART USEAT FORM 117 10000 250 C PWR H FUSE 3 15 PWR H R201 0 C118 10000 250 C PWR H 70100 RLZ24B MAIN ICP1 ICP S0 5 MAN R202 6 C C119 10000P 250 PWR H 0101 MTZJ16B ICP2 CCP2E 50 MAIN 8203 6 C120 00033 AC250 C PWR 0102 720 25 MAIN 8204 6 121 00039 250 PWR H 0103 RD6 8F
19. Fig 9 1 circuit detects the indoor heat P PTT E E x exchanger temperature and controls U the following MN I TE 1 Low temperature defrosting during cooling and dehumidifying operation u The voltage at depends on the heat 5 exchanger temperature shown 5 Fig 9 2 10 0 10 20 30 40 Heat exchanger temperature C Fig 9 2 52 10 Temporary Switch 5V TEMPORARY SWITCH l SW1 TELECON AX 3U MICRO COMPUTER Fig 10 1 e The temporary switch is used to operate the air conditoner temporarily when the wireless remote control is lost or faulty e The air conditioner operates in the previous mode at the previously set temperature However when the power switch is set to OFF it starts automatic operation 11 DC Fan Motor Drive Circuit e Fig 11 1 shows the indoor DC fan motor drive circuit MICRO COMPUTER AX 3U MM FAN PWM 57 Indoor DC OUTPUT Fan motor FAN PWM FEEDBACK 8 DETECTION Fig 11 1 e The circuit produces the fan motor drive voltages 8 33V from 35V DC supplied from power supply and controls the fan motor speed e Q901 is switched on and off according to the signal at fan PWM output pin 57 to control the voltage which is smoothed by D902 L901 and C901 to drive the fan motor e The output voltage is divided by R919 and R920 and is input to divided vol
20. 5 sis 555 Micro computer AX 3U et 9 49 5 Receive circuit 12V Micro computer 0141 AX 3U R212 R141 m e 18 WIRELESS IP 8209 702 Unt R211 N Infrared signals from the wireless remote controller are received by the light receiving unit and output after being amplified and shaped 6 Service Operation Circuit 5V Micro computer VA R629 Service FORCE COOL 5 9 Normal SW oV SERVICE SW e Use the service switch to select Cooling temporarily when the interior electric equipment has troubled e Setting the switch to Cooling causes continuous cooling room temperature control To control the 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 e Does not operate is 12V is not generated in the control circuit e When the service switch is used for operation each change switch is overridden Setting the service switch to Cooling turns on the Power relay 50 7 Auto Sweep Motor Circuit 12V CN12 Auto sweep motor for horizontal air deflectors 1 1 1 Micro computer Qa AX 3U s
21. Make yourself a body earth by passing 1MQ 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 body earth is being taken 4 Be sure to place a part on a metal plate with grounding 5 Be careful not to fail to turn off power when you repair the printed circuit board At the same time try to repair the printed circuit board on a grounded metal plate Body earth Elimik conductive band r Clip for connection with a 1MQ grounding wire Fig 2 Body Earth 6 Use a three wire type soldering iron including a grounding wire Metal plate of aluminium stainless steel etc lt Working table Resistor of 1 1 2W Staple j Earth wire Bare copper wire for body earth Fig 3 Grounding of the working table Soldering iron Grounding wire Screw stop at the screwed part using a rag plate Fig 4 Grounding a soldering iron Use a high insulation mode 100V 10MQ 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 CAUTION 1 In quiet or stop operation slight flowing noise of refrigerant in the refrigerating cycle is heard occasionally but this noise is not abnormal for the operation When it thunders near by it
22. Press the button so that the display indicates CIRCULATE Circulating operation starts with a beep Press the FAN SPEED button and select the desired FAN SPEED the display indicates your choice Press the temperature control button to set to the desired temperature Press the STOP button to stop operation As the settings are stored in memory the remote controller you only have to press the CIRCULATION button next time HITACHI Circulation Function During circulation operation compressor does not run and there is no cooling operation with only indoor fan running When the setting temperature is higher than room temperature indoor fan will stop running 16 SUPER COOLING Press the button Operation start with a signal received sound beep Unit will be forced operate in COOL with SUPER HI fan speed for 20 minutes Indicator appear during this period while temperature and fan speed setting display remain unchanged Operation lamp at indoor unit is blinking e After 20 minutes operation lamp stop blinking and indicator will disappear while unit will be in COOL mode Temperature and fan speed will change to previous setting e Air blow sound will be slightly high due to forc
23. Fan Speed S 5 sec m e When the room temperature is 16 C or lower 16 C becomes the set temperature P 2 lt The other operations the same as for 1 Operation lamp Operation switching Sensor Yes dehumidification Cooling Yes Temporary switch Yes automatic Service switch Cooling Yes Nice temperature reservation Yes Sleep circuit Yes Auto swing direction Yes Filter sign Yes Wireless mode Cooling Table 2 Sensor operation values Item RAS 10G5 14G5 Thermostat ON temperature Cooling Sensor 16 17 3 operation Thermostat relay dehumidification 24 25 3 32 33 3 Differential 0 33 3 minutes after thermostat OFF during cooling operation with automatic velocity the blowing velocity changes in the order of L in the same way as at the time of thermostat ON In case of switching from Sensor dehumidification operation to Cooling as it is when the thermostat is ON 3 min delay will not be entered However the set room temperature and the blowing velocity will be according to the remote control signal The same applies for switching from Cooling to Sensor dehumidification The filter sign lights after operation of the indoor fan for 200 hours The time is cleared when the J AUTO SWING button is presse
24. MAN 8205 6 8206 6 201 u 63 D MAN R 0141 RD5 6UJN2 ND RELAY R207 6 C202 01 25 SYMBOL PART NO USEAT FORM R208 6 C203 01 25 70201 RLZ27D RLI G4A 1A PE PWR H R209 6 204 01 25 C MAN RL2 PWR H R210 6 C205 01 25 MAIN RL3 PWR H 8211 6 C206 01 25 MAIN 8212 0 C207 01 25 MAIN 8302 6 21 47 16 D IND R R303 6 212 C IND C TRANS OSCILLATOR R304 6 C SYMBOL PART NO USEAT FROM SYMBOL PART NO USEAT FORM R307 6 0481 PWR 05 1 EFOMC8004A4 MAIN R308 6 C30 25 C MAN R309 6 302 25 R310 6 C303 25 C MAN R311 6 C R312 6 40 25 C MAN INDUCTANCE POSISTOR SYMBOL PART NO USEAT FORM SYMBOL PART NO USEAT FORM R401 6 C60 25 C MAN C LI RYS53 PWR R PTH1 UUMPER PWR A R402 6 C602 01 25 MAN 2 FR 055D08 PWR R403 6 C603 01 25 R404 6 610 01 25 MAN L102 50 06 MAIN R410 6 618 01 25 MAIN R411 6 C628 01 25 C MAIN L110 EXCELSA35 PWR A CONNECTOR R412 6 L111 EXCELSA35 PWR A SYMBOL PARTNO USEAT FORM R413 6 C702 000P 50 MAIN C
25. MODEL RAC 10G5 COMPRESSOR LINE CORD R ORANGE ARRANGEMENT 5 RED C WHITE A CAUTION When the Air Conditioner has been operated for a long time with the capillary tubes clogged or crushed or with too little refrigerant check the color of the refrigerant oil inside the compressor If the color has been changed conspicuously replace the compressor 32 COMPRESSOR MOTOR Compressor Motor Specifications MODEL RAC 14G5 COMPRESSOR MODEL UG4B124JX PHASE SINGLE RATED VOLTAGE 220 240 RATED FREQUENCY 50 Hz LOCKED ROTOR CURRENT 27 POLE NUMBER 2 WHITE ORANGE CONNECTION T Ez sm RED 20 3 08 RESISTANCE VALUE 68 F RS 2 81 0 75 3 75 167 RS 3 42 EXTERNAL OVERLOAD RELAY YES INTERNAL PROTECTOR NO MODEL RAC 14G5 COMPRESSOR OR NCE LINE CORD ARRANGEMENT S RED CAUTION When the Air Conditioner has been operated for a long time with the capillary tubes clogged or crushed or with too little refrigerant check the color of the refrigerant oil inside the compressor If the color has been changed conspicuously replace the compressor 33
26. PLATE PMRAS 07GH4 PMRAS 260GA FAN MOTOR TANGENTIAL FAN PMRAS 25YH4 P BEARING ASSY PMRAS 10CYT PMRAS S13CYK FAN MOTOR BASE CYCLE ASSY PMRAS 25YH4 BEARING COVER PMRAS S13CY PIPE SUPPORT CO wy N PMRAS S10CY DRAIN PAN ASSY k PMRAS 25YH4 AUTO SWEEP MOTOR PMRAS S10CYT PMRAS 10G5 SE COVER FRONT COVER ASSY PMRAS 10G5 FRONT PANEL PMRAK 25N6 PMRAK 25N6 AIR FILTER R AIR FILTER L PMRAS 10CE9G REMOTE CONTROL ASSEMBLY PMRAS 10C9G PMRAS 10C8M REMOTE CONTROL SUPPORT THERMISTOR SUPPORT PMRAS 260GHA THERMISTOR PMRAS S13CAK PMRAS S10CX P W B MAIN P W B POWER SW SUPPLY 62 PARTS LIST AND DIAGRAM OUTDOOR UNIT MODEL RAC 10G5 14G5 63 MODEL 2 9 RAC 10G5 PART NO RAC 10G5 Q TY UNIT PARTS NAME 13 7 FAN MOTOR CAPACITOR PMRAC 13C7 COMPRESSOR CAPACITOR PMRAC 63CA1 TERMINAL BOARD 2P PMRAC X10CZ 3S VALVE PMRAC X13CX 25 PMRAC E10CZ FAN MOTOR SUPPORT PMRAC S13CX FAN MOTOR PMRAC X10CZ PROPELLER FAN PMRAC S10CAK SIDE PLATE R O AJ O N 10 7 CONDENSER PMRAC X10CZ PMRAC S10CAK STRAINER PIPE COMPRESSOR KPNTI CO
27. during NICE TEMPERATURE operation Cooling When the room temperature lt Set value compensation shift it s operated same as above Not attained check Performed once when the NICE TEMPERATURE timer is completed Cooling When the room temperature gt Set value compensation shift 190 it s operated same as above If the room temperature is within 1 C from the set value compensation shift compensation is not done e The air deflector control operation shown below is done when the swing switch is pressed or when the operation mode is changed e The air deflector control operation shown below is done when the operation switch is turned off Specification Air Item blowing 3 way AUTO Swing direction Cooling 90 in down direction dehumidi gt 63 in up direction 0 Down 55 Down 63 55 0 up direction Swing start direction 45 REFRIGERANT CYCLE DIAGRAM MODEL RAS 10G5 RAC 10G5 RAS 14G5 RAC 14G5 SUCTION TANK _ AS VALVE RAS 14G5 RAC 14G5 3S VALVE M for RAS 10G5 RAC 10G5 H THERMISTOR POSITION M Y TY V A Y STRAINER ae COOL 2S VALVE CHARGING CAPILLARY PIPE 46 DESCRI
28. is recommended to stop the operation and to disconnect the power cord plug from the power outlet for safety In the event of power failure the airconditioner will restart automatically in the previously selected mode once the power is restored In the event of power failure during TIMER operation the timer will be reset and the unit will begin or stop operating under a new timer setting If the room air conditioner is stopped by adjusting thermostat or missoperation and re start in a moment there is occasion that the cooling 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 This room air conditioner should not be used at the cooling operation when the outside temperature is below 21 C 70 F When the operation button is set to cool from other mode the compressor will stop for about 3 minutes as IC delay circuit protection SPECIFICATIONS MODEL RAS 10G5 RAS 14G5 RAC 10G5 RAC 14G5 FAN MOTOR 20 W 30 W FAN MOTOR CAPACITOR NO 2 5uF 450VAC FAN MOTOR PROTECTOR COMPRESSOR NO YES ASG108CV UG4B124JX COMPRESSOR MOTOR CAPACITOR 450 VAC 45pF 450 VAC OVERLOAD PROTECTOR NO YES EXTERNAL OVERHEAT PROTECTOR NO YES EXTERNAL FUSE for MICROPROCESSOR
29. off after 1 2 3 or 7 hours The FAN SPEED and room temperature will be controlled as shown below Operation with the sleep timer Function Operation Cooling The room temperature will 2 TT be controlled 2 C above the 1 setting temperature and the FAN SPEED will be set to LOW setting 1 hour after the setting Mni e TES LR dehumidifying of the sleep timer 2 hours later s z 3 hours later ON Timer OFF Timer are available OFF Timer Reservation OFF TIME setting Select the OFF TIME by pressing the OFF Button Setting time will change according to the below sequence when you press the button 1 hour interval 1 1213 29 9 310 111 212 T CANCEL OFF TIMER _____ ON Timer Reservation 5 ON TIME setting Select the ON TIMER by pressing the ON Button Setting time will change according to the below sequence 1 hour interval aA 17273 gt l 9 410 212 T CANCEL ON TIMER X 19 Operation stop at setting time HITACHI Operation will start for setting temperature at setting time The starting time may different depend on the room temperature and set temperature HITACHI
30. repeat the same settings next time 14 lt DEHUMIDIFYING OPERATION Use the device for dehumidifying when the room temperature is over 16 C When it is under 15 C the dehumidifying function will not work Press the DEHUMIDIFY button Dehumiditying operation starts with a beep The FAN SPEED is set at LOW automatically The FAN SPEED button does not work 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 O STOP button to stop operation As the settings are stored in memory in the remote controller you only have to press the DEHUMIDIFY button next time Dehumidifying Function When the room temperature is higher than the temperature setting The device will dehumidify the room and reducing the room temperature to the preset level When the room temperature is lower than the temperature setting Dehumidifying will be performed at the temperature setting slightly lower than the current room temperature regardless 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 You might feel a bit colder in dehumidifying operation 15 CIRCULATION OPERATION
31. some dew may form on the air outlet grille of the indoor unit HITACHI ge HITACHI ah Press the button so that the display indicates amp COOL Cooling operation starts with a beep The cooling function does not start if the temperature setting is higher than the current room temperature even though 1 OPERATION lamp lights The cooling function will start as soon as you set the temperature below the current room temperature Set the desired FAN SPEED with the FAN SPEED button the display indicates the setting AUTO The FAN SPEED is HI at first and varies to MED or LOW automatically when the preset temperature has been reached Hi fan speed mode MED Medium fan speed mode Oni lt amp LOW Low fan speed mode N Set the desired room temperature with the TEMPERATURE button the display indicates the setting The range of 25 28 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 somewhat depending on conditions STOP Press the STOP button to stop operation As the settings are stored in memory in the remote controller you only have to press the COOLING button to
32. 28 PWR SW1 EVOPAEO7K IND H 8722 02 25 41155 PWR SW2 5555912500 MAIN R723 C 03 25 2710 PWR R724 R725 0109 25 5285 MAN 0141 25 2462 8801 0201 25 2462 MAN 8906 0202 25 11215 MAIN C R911 C 0203 114 MAN C R912 C R913 0301 114 MAN R914 C 0302 114 MAIN R915 R916 0901 255285 MAIN 8917 0902 25 24621 MAIN R919 0903 25C3360 MAIN 8920 R930 A R931 A R932 A 39 HOLOW 315 d33MS OLNY 349019 1 23 Yala NOILVOIGNI NOILVH43dO 22 AV I3H Y LINDYIO 13538 YOLSINYAHL HO LSIINH3H L 1 1 NOOH 3 13 L 1 3LON3H SSATSYIM YOLOW YOOaLNO HOOQNI 55 AV I3H YOLOW HOLOW
33. 3 15A NO POWER RELAY G4A NO POWER SWITCH YES NO TEMPORARY SWITCH YES NO SERVICE SWITCH YES NO TRANSFORMER YES SWITCHING POWER SUPPLY NO VARISTOR NO FUSE CAPACITY TIME DELAY FUSE THERMOSTAT REMOTE CONTROL SWITCH LIQUID CRYSTAL REFRIGERANT CHARGING UNIT VOLUME Refrigerant R410A MAX PIPES MODEL RAS 10G5 RAC 10G5 Figure showing the installation of Indoor and Outdoor unit N CAUTION In case the pipe length is more than 8m add refrigerant R410A at 15 gram per every meter exceeds However pipe length shall not exceed 15m above 50mm Be sure to completely seal any gap above 100mm must not bend about 400m about 300mm The indoor piping should be insulated with the enclosed insulation pipe If the insulator is insufficient please use commercial products Maximum pipe length 15m Minimum pipe length 5m above 200mm e The difference in height between the indoor and Bove iom outdoor unit should be kept give clearance as max 5m wide as possible e 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 installed on the above 50mm when nsa of balcony The connection of insulated
34. 3 minutes before forced re operation by the service switch Replace Power relay Replace faulty part 8 CN5 BLUE RED V RAS 10G5 RAS 14G5 RAC 10G5 RAC 14G5 Fan Speed Cool Cool HI 23 0 30 3 MED 19 0 25 6 LO 15 6 20 0 SLEEP MODE 11 9 13 5 58 Timer Lamp break down checking blinking sign Check the break down factor from the frequency of timer lamp blinking No Mode of Timer Lamp blinking Indication Factor Estimated Break Down Part Force cooling operation Check force cooling switch at Unit is under forcible operation indoor electrical 5 1 sec cce c iei 2 times or under balancing after forcible operation DC Fan motor over current 1 Indoor Fan is locked of electricity 2 sec 10 times Indoor DC Fan motor has over 2 Indoor Fan motor damage current of electricity 3 Indoor control circuit board IC 401 Data read wrongly IC401 data is not in order In case that data read from IC401 3 IIS 13 times is wrong Heat exchanger thermistor 1 Thermistor error UT 4 14 times Heat exchanger thermistor open 2 Indoor control circuit board or short circuit detected Room thermistor error 1 Thermistor Room thermistor error open or m 5 sec 15 times short circuit detected 2 Indoor control circuit board
35. 4 The operation does not stop even by raising the room temperature setting of remote control at a dehumidifying operation Ne x In the dehumidifying mde the temperature set by remote controller is set slightly higher than the room temperature but the operation starts The fan speed is always LO at a dehumidifying operation 27 improve the dehumidi 7 fication efficiency LO fan speed operation is performed Therefore the air is cold This is not a trouble 211 y At a dehumidifying operation E the actual room temperature is compared with the room temperature setting when starting the operation and the operation is as follows 1 When actual room tempe rature room temperature setting The operation is according to the room temperature setting on the remote controller 2 When actual room tem perature room tempera ture setting Regardless of the room temperature setting the temperature is auto matically set slightly lower than the room temperature In this case the status is as 2 and therefore the opera tion by the room temperature control is impossible Turn off the On OFF switch set the room temperature to a new value and turn on the opera tion by the On Off switch This is the status in 2 of 4 The temperature is set a little lower than the r
36. FYING FILTERS A CAUTION Cleaning and maintenance must be carried out when filter lamp lights Before cleaning stop operation and switch off the power supply 1 Open the front panel Pull up the front panel by holding it at both sides with both hands 2 Remove the pre filter Push upward to release the claws and pull out the filter 3 Attaching the air purifying filters Attach the air purifying filters to the frame by gently compress its both sides and release after insertion into pre filter frame N CAUTION Do not bend the air purifying filter as it may cause damage to the structure 4 Attach the pre filters e Attach the pre filters by ensuring that the surface written FRONT is facing front e After attaching the pre filters push the front panel at three arrow portions as shown in figure and close it NOTE case of removing the air purifying filters please follow the above procedures The cooling capacity is slightly weakened and the cooling speed becomes slower when the air purifying filters are used So set the fan speed to HIGH when using it in this condition e Air purifying filters are washable and can be use in 1 year time Type number for this air purifying filter is
37. IND E 3010 3118 1 SINT NE 8000 22988 SAN 6 21 5 BOLSINEGHL 015 88 9 rs denis 3H UU a 1008980001 Nv gt N33H9 sy tt IPT n TEQUE 8 HlHV3 1 INS agnavsi e 1 2 JM 8 08 WaMOd 803408 1 WNL 1 TWIN RPE IN qu 1 lt 5 0 801 age 3 88 8098 212225 10 HOLIMS 003 29880 9 123 09 QU 240 9 291 39 SYNIVHACIVAL NL 022 LINN 1 LINN HOOQNI 5 T3QOW 35 CIRCUIT DIAGRAM Remote Control LCD N 2 E Hr 10 8 o 2N cge T 9 3 9 29 8 878 2 OT mW if e 1 eee N edle o 804 Isg EL OO 5 N 9 4001 ny
38. MPRESSOR NUT PMRAC 10G5 CABINET PMRAC X10CZ D GRILL PMRAC E10CZ TOP COVER PMRAC X10CZ SIDE PLATE L PMRAC S10CAK COMPRESSOR RUBBER PMRAC E10CZ TERM COVER 64 MODEL z 9 RAC 14G5 PART NO RAC 14G5 Q TY UNIT PARTS NAME PMRAC 13C7 FAN MOTOR CAPACITOR PMRAC 24GH4 COMPRESSOR CAPACITOR PMRAC 63CA1 TERMINAL BOARD 2P PMRAC S13CAK 4S VALVE PMRAC X13CX 25 PMRAC E10CZ FAN MOTOR SUPPORT PMRAC S13CX FAN MOTOR PMRAC X10CZ PROPELLER FAN PMRAC S10CAK SIDE PLATE R O OA O N PMRAC X10CZ CONDENSER PMRAC X10CZ PMRAC S13CAK STRAINER PIPE COMPRESSOR KPNTI COMPRESSOR NUT PMRAC 14G5 CABINET PMRAC X10CZ D GRILL PMRAC E10CZ TOP COVER PMRAC X10CZ SIDE PLATE L PMRAC S13CAK COMPRESSOR RUBBER PMRAC E10CZ TERM COVER 65 HITACHI RAS 10G5 RAC 10G5 PM NO 0487E RAS 14G5 RAC 14G5 Printed in Malaysia
39. PTION OF MAIN CIRCUIT OPERATION 1 ON OFF The ON OFF and Timer reserve button and Sleeping function independently Their operations are shown in Fig 1 1 Start Stop Start ON OFF button Timer reserve button When Sleeping timer sleeping is set Operation lamp Timer lamp OFF time Start Stop ON OFF button Timer reserve button When ON timer is set Operation lamp Timer lamp ON time Fig 1 1 Timer operation 47 2 Reset Circuit 5V 35V 9 2 9 Micro computer AX 3U 0202 17 S 28 17 RES C202 28 cc N x E DC35V Line x LE AVI UE DC5V Line U A POWERON POWER OFF Micro computer Pin 17 5 The reset circuit is used to reset the program to its initial settings when the power is turned or when the power is recovered after a power failure e The micro computer is reset when the reset input is Lo and operation is possible when the reset input is Hi e The waveforms at each point when the power is turned on and off are shown in the diagrams When the power is turned on the voltages of the DC 35V line and DC 5 li
40. PWR 721 25 C MAN CN2M B11B CZHK B 1 MAIN R601 6 C723 25 1901 4500 15 MAIN CN2H STIB CZHK B 1 IND H R603 6 C725 25 MAIN CN3M 5 1 MAIN 8604 6 R AZ 821G 392A PWR CN3P BOSB XARK 1 PWR H R606 6 C901 220 50 D MAIN F2 AZ 821G 392A PWR H CNAM B5B PH K K MAIN H R607 6 CN4P 5 PWR H R608 6 C C942 u 25 C CN5 B5B XASK 1 MAIN 8609 6 CN6 5 MAIN R610 6 CN7 B4B PH K S MAIN R611 6 IC R613 6 9 B4B XH A BK MAIN H R614 6 C SYMBOL PART NO USEAT FORM R615 6 C REGI TL5001CP MANN SOP CN11 B3B PH K S R616 6 C REG2 MC7805CT MAN H 12 B5B PH K S R617 0 C R618 0 C HD6433712H MAIN SOP 15 B5B PH K K IND 8620 6 401 BR24CO2F MAIN SOP R621 6 501 ULN2003ANS MAIN SOP BLUT BOARD IN PWR 8622 6 POT PC817X PWR H BRN1 BOARD IN PWR R623 6 BRN2 BOARD IN PWR 8624 6 IRR RPM6938 V4 IND GRN1 BOARD IN PWR R625 6 GRN2 BOARD IN PWR 8626 6 GRN3 BOARD IN PWR 8627 6 BOARD IN PWR 8628 0 PWR H R629 6 BOARD IN PWR cm TRANSISTOR SWITCH SYMBOL PART NO USEAT FORM SYMBOL PART NO USEAT FORM R721 01 25 44
41. ault short circuit or fire may occur if you continue to operate the unit under abnormal situation e Please contact your agent for maintenance Improper self maintenance may cause electric shock and fire e Please contact your agent if you need to remove and reinstall the unit Electric shock or fire may occur if you remove and reinstall the unit yourself improperly e f the supply cord is damaged it must be replaced by the special cord obtainable at authorized service parts centers PRECAUTIONS DURING OPERATION e Avoid an extended period of direct air flow for your health e Do not insert a finger a rod or other objects into the air outlet or inlet As the fan is rotating at a high speed it will cause injury Before cleaning be sure to stop the operation and turn the breaker OFF e Do not use any conductor as fuse wire this could cause fatal accident oz 2z 9m 9 During thunder storm disconnect and turn off the circuit breaker PRECAUTIONS DURING OPERATION e The product shall be operated under the manufacturer specification and not for any other intended use Nm e Do not attempt to operate the unit with wet hands this could cause fatal GN 4 accident e Do not direct the cool air coming out from the air conditioner panel to face LG household heating apparatus as this may affect the working of apparatus LN such as the electric kettle oven etc oc fcheo C E LN
42. coming into the indoor unit Refer Instruction manual FRONT PANEL INDOOR UNIT INDICATORS Light indicator showing the operating condition Refer page 9 HORIZONTAL DEFLECTOR VERTICAL DEFLECTOR AIR OUTLET REMOTE CONTROLLER Send out operation signal to the indoor unit So as to operate the whole unit Refer Instruction manual DRAIN PIPE Condensed water drain to outside CONNECTING CORD AIR INLET BACK LEFT SIDE AIR OUTLET MODEL NAME AND DIMENSIONS MODEL WIDTH HEIGHT mm DEPTH mm RAS 10G5 RAS 14G5 780 280 220 RAC 10G5 RAC 14G5 700 468 258 INDOOR UNIT INDICATORS V TEMPORARY SWITCH 000000 000000 OPERATION INDICATOR TEMPORARY SWITCH FILTER LAMP When the device is operated for a total of about 200 hours the FILTER lamp lights to indicate that it is time to clean the filter The lamp goes out when the AUTO SWING button is pressed while the device is on STANDBY OPERATION LAMP This lamp lights during operation TIMER LAMP This lamp lights when the timer is working a Temporary Switch 22 Non conductor St SS x ie 4 TEMPORARY SWITCH SN 000000 000000 Use this switch to start and stop when the
43. d while the device is on STANDBY MODE When operation by nice temperature reservation is executed during sleep operation normal operation will be continued and the advance time becomes the temperature difference between the set temperature without sleep shift and the room temperature 43 Operation starts advance so that the room temperature reaches the preset value the set time e The operation time is obtained as follows depending on the room temperature when operation starts 1 Calculation method of the moved up time Moved up time MT Moved up time depending on the temperature difference OT compensation time HT MT is at least 1 minute if OT is not zero Cooling MT 00 60 min OT 00 60 min HT 60 60 min Obtain OT moved up time depending on the temperature difference from the table below Cooling Setting temp Room temp Time min 00 00 02 00 00 02 25 05 00 15 05 25 08 00 30 08 25 11 00 45 11 25 60 TURE The preset temperature value shown above does not include any shift value 2 Compensation 1 The Attained state is monitored and Not attained check is done to revise the compensation time HT Attained monitor Continuously monitored
44. drain hose above 700mm inner diameter 16mm Please use insulated drain hose for the indoor piping commercial product MODEL RAS 14G5 RAC 14G5 Figure showing the installation of Indoor and Outdoor unit CAUTION In case the pipe length is more than 8m add refrigerant R410A at 10 gram per every meter exceeds However pipe length shall not exceed 15m above 700mm rss 50mm when Be sure to completely seal any gap about 300mm installed on the ceiling of balcony BEER must not bend about 400mm Maximum pipe length 15m Minimum pipe length 5m c e above 50mm above 100mm The indoor piping should be insulated with the enclosed insulation pipe If the insulator is insufficient please use commercial products e The difference in height between the indoor and outdoor unit should be kept max 5m give clearance as e The connecting pipe wide as possible 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 above 200mm The connection of insulated drain hose inner diameter 16mm Please use insulated drain hose for the indoor piping commercial product 3 NAMES AND FUNCTIONS OF EACH PART INDOOR UNIT PRE FILTER To prevent dust from
45. e reservation time Timer Start stop button 2 operation ON timer Reservation ON timer during operation Cancel Change of the reservation time 9 or LO operation is Automatic executed according to the thermostat signal Refer to Thermostat operation Circulation HI 5 ame as the left 5 e LO and Stop are repeated according to the thermostat signal independent of the setting MED Same as on the LO Same as on the left 1 When the set temperature is lower than the room temperature 3 Set temperature Temperature shift amount 2 3 30 sec 30 sec Start stop button Fan relay 5 5 2 566 Operation lamp Thermostat operation H gt HI pai L gt MED S LO 5 4 9 The ON time of the power relay is 3 minutes and the OFF time also is 3 minutes The power relay 15 e The indoor fan is not delayed with operation start by start stop button ON delayed by 2 seconds e The indoor fan is delayed by 5 sec with operation start by thermostat operation from the start of thermostat operation 2 Set temperature is higher than room temperature Set temperature Notes 0 66 deg 2 0 33 deg Forced operation by start stop button ON is executed even with thermostat OFF 4 Start stop button The room temperature 30 sec after operation start minus 0 66 deg becomes the se temperature
46. ed operation 27 CANCELLATION of SUPER COOLING Operation Cancel Condition Operation mode after cancel Press or OFF timer time is up Stop operation 6 key press DEHUMIDIFYING operation key press CIRCULATION operation Press or Press or Press or Press or 20 minutes time is up Normal COOLING operation NOTE 1 OFF TIME setting OFF timer will be a priority over the SUPER COOLING operation time 2 ON TIME setting SUPER COOLING operation will be a priority over the ON timer operation time 17 HOW SET THE SLEEP TIMER Press the SLEEP button and the display changes as shown below Mode Indication h HITACHI Sleep timer 1 hour 2 hours 3 hours 7 hours u a Sleep timer off J Sleep Timer The device will continue working for the designated number of hours and then turn off Point the signal window of the remote controller toward the indoor unit and press the SLEEP button The timer information will be displayed on the remote controller The TIMER lamp lights with a beep from the indoor unit SLEEP Explanation of the sleep timer The device will control the FAN SPEED and room temperature automatically so as to be quiet and good for people s health You can set the sleep timer to turn
47. erature suitable P E Notes e quiet or stop operation the following phenomena may occassionally occur but they are not abnormal for the operation 1 Slight flowing noise of refrigerant in the refrigerating cycle 2 Slight rubbing noise from the fan casing which is cooled and then gradually warmed as operation stops e 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 Ke J Please contact your sales agent immediately if the air conditioner still fails to operate normally after the above inspections Inform your agent of the model of your unit production number date of installation Please also inform him regarding the fault Power supply shall be connected at the rated voltage otherwise the unit will be broken or could not reach the specified capacity NOTE If the supply cord is damaged it must be replaced by the special cord obtainable at authorized service parts centers 28 CONSTRUCTION AND DIMENSIONAL DIAGRAM MODEL RAS 10G5 14G5
48. ifying operation the LO fan speed is forcibly selected 57 TROUBLE SHOOTING No cooling 2 Operates by setting the service switch to forced cooling YES Q Return the service switch to Normal Q Set the remote controller to an operation status and press the ON OFF button Q Is the level LO approx 0 5V between driver IC501 pin power relay and 0V NO Is voltage normal between blue wire and red wire of Indoor DC Fan Motor NO Is voltage normal approx 280 380V at out put side of the DB1 NO Replace control P W B No operation at all remote controller 1 Before using the service switch disengage and engage the plug Do not operate the 4 Dc Check the following parts and replace if faulty NO 1 Current fuse Remove and check the continuity across 2 Varistor Check whether the appearance is blackish or not The resistance must be infinite 2 3 Power switch Check the continuity between contacts 2 Before checking the varistor detach a terminal relay abnormal YES Compressor does not turn at LO Indoor fan motor or or 0109 abnormal 5 3 Refer to below table E Check the circuit board of control board YES 4 Wait for
49. in the room is above the cooling capability of the unit for example more people entering the room using heating equipments and etc the preset room temperature cannot be achieved e This appliance is not intended for use by young children or infirm person unless they have been adequately supervised by a responsible person to ensure that they can use the appliance safely e Young children should be supervised to ensure that they do not play with the appliance 12 NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT REMOTE CONTROLLER This controls the operation of the indoor unit Signal range to reach indoor unit is about 7 meters If inverter lamp is used the range of control may be shorter This unit can be fixed on a wall using the fixture provided Before fixing it make sure the indoor unit can be controlled from the remote controller Transmission sign The transmission sign blinks when a signal is sent Display This indicates the room temperature selected timer status function and intensity of circulation selected CIRCULATION button Use this button to set air circulation in the room or start operation DEHUMIDIFYING button Use this button to dehumidify the room or start operation COOLING button Use this button to set cooling mode in the room or start operation RESET button SUPER COOLING button Use this button to deliver faster and more comfortable air conditioning STOP button Press this b
50. lt SPX CFH11 gt Please use this number for ordering when you want to renew it Do not operate the air conditioner without pre filter Dust may enter the air conditioner and fault may occur 24 31 MAINTENANCE a CAUTION Cleaning and maintenance must be carried out when filter lamp lights Before cleaning stop operation and switch off the power supply 1 PRE FILTER 8 Clean the pre filter as it removes dust inside the room case the pre filter is full of dust the air flow will decrease and the cooling capacity will be reduced Further noise may occur Be sure to clean the filter following the procedure below PROCEDURE 1 Open the front panel and remove the pre filter e Gently lift and remove the air purifying filter from the pre filter frame 2 Vacuum dust from the pre filter and air purifying filter using vacuum cleaner If there is too much dust rinse under running tap water and gently brush it with soft bristle brush Allow filters to dry in shade 3 Re insert the air purifying filter to the filter frame Set the pre filter with FRONT mark facing front and slot them into the original state e After attaching the pre filters push the front panel at three arrow portions as shown in figure and close it NOTE e Air purifying filter should be cleaned every month or sooner if no
51. nes are increased When the voltage of DC 35V lines reaches about 27V 20201 is turned ON the potential of 020175 base rises and Q201 is turned ON Since Q201 s collector is set to LO at this time Q202 is turned ON and the reset input of the micro computer is set to The DC 5 line voltage has already become stable at this time and the micro computer starts operation e When the power is turned OFF the voltage of the DC 35V line decreases When it becomes below 27V ZD201 is turned OFF then Q201 is turned OFF Q202 is turned OFF the reset input of the micro computer is set to Lo and the micro computer is set to the reset mode 48 3 Buzzer Circuit 12 Micro computer AX 3U S Buzzer output 21 Fig 3 1 Buzzer Circuit e When the buzzer sounds an approx 3 9kHz square signal is output from buzzer output 0 of the micro computer After the amplitude of this signal has been set to 12Vp p by a transistor it is applied to the Metal diaphragm Pizoelectric element buzzer The piezoelectric element in the buzzer oscillates to generate the buzzers sound VLLLLLL gt Oe I gt Sound b 4 xn f a Fig 3 2 Buzzer Operation 4 Initial setting IC401 The ratings of the compressor maximum rotation speed etc are preset in the micro computer
52. o 5 5 gt Hu 99 2 a 51 81 s 8 9 3 l 9 5 9 5 S 8 S cro saw 5 2 sa J az Ia LWOO ZWOO 200 Eld 505 10939 10938 9 m 20935 i 20935 20935 014 70935 LO 90935 5095 9 90935 1093 7095 80935 0935 104 60935 0153 9093 00 1093 80935 TE e Zed G a 6 o 5 5 2 b b s 9 9 J e s s 9 4001 2 aD gt 4001 E 5 ZH 8H 001 ON 6 OLH Ko2 Ko3 5 KD 37 PRINTED WIRING BOARD LOCATION DIAGRAM MODEL RAS 10G5 14G5 RAC 10G5 14G5
53. oom temperature to carry out a dehumidifying operation as far as possible J 56 and actual room temperature NE x There is a difference between There may be a difference the room temperature setting between the room temperature setting and actual room temperature on account of the room structure air flow etc If there is a difference from the room temperature adjust the set temperature to keep living space at a comfortable temperature What will happen if the time setting is changed while a timer operation Q7 A7 operation is performed until the time after changing the time setting Nice temperature reservation In case of ON timer the operation does not start at a preprogrammed time but a little earlier Q8 The time to start an operation is irregular N while preprogramming at the same time After selecting a Dehumidifying operation mode the fan speed mode remains LO fan speed The Nice temperature reservation functions The operation starts earlier so the room temperature will be as set at a programmed time The operation starts at most 60 minutes before a preprogrammed time The Nice temperature reservation operates gt starting time depends the room load At a Dehumid
54. remote controller does not work Use non conductor stick example toothpick e By pressing the temporary switch the operation is done in previously set operation mode e When the operation is done using the temporary switch after the power source is turned off and turn on again the operation is done in automatic mode Please note On switching on the equipment particularly when the room light is dimmed a slight brightness fluctuation may occur This is of no consequence The conditions of the local Power Supply Companies are to be observed Note e Avoid to use the room air conditioner for cooling operation when the outside temperature is below 21 C 70 The recommended maximum and minimum operating temperatures of the hot and cold sides should be as below Minimum Maximum Indoor Dry bulb C 21 32 Wet bulb C 15 23 Outdoor Dry bulb C 21 43 Wet bulb C 15 26 SAFETY PRECAUTION e Please read the Safety Precaution carefully before operating the unit to ensure correct usage of the unit Pay special attention to signs of Warning and Caution The Warning section contains matters which if not observed strictly may cause death or serious injury The Caution section contains matters which may result in serious consequences if not observed properly Please observe all instructions strictly to ensure safety e The sign indicate the following meanings
55. rminal which is marked with the letter L or coloured red NOTE If the supply cord is damaged it must be replaced by the special cord obtainable at authorized service parts centers N CAUTION Cleaning and maintenance must be carried out only by qualified service personnel Before cleaning stop operation and switch off the power supply REGULAR INSPECTION YOUR SALES AGENT OR SERVICE SHOP PLEASE CHECK THE FOLLOWING POINTS BY QUALIFIED SERVICE PERSONNEL EITHER EVERY HALF YEARLY OR YEARLY CONTACT N Is the plug of power line firmly plugged into the socket 1 Please ensure loose contact between them 2 i A Is the earth line disconnected or broken CO Is the mounting frame seriously affected by rust and is the 3 outdoor unit tilted or unstable 27 AFTER SALE SERVICE AND WARRANTY WHEN ASKING FOR SERVICE CHECK THE FOLLOWING POINTS CONDITION CHECK THE FOLLOWING POINTS 5 the fuse all right When it does not operate 5 the voltage extremely high or low 5 the circuit breaker Was the air filter cleaned Does sunlight fall directly on the outdoor unit When it does not cool well e 5 air flow of the outdoor unit obstructed the doors or windows opened or is there any source of heat in the room e Is the set temp
56. tage output pin the micro computer controls the fan PWM output so the output voltage is set to the specified value The chopper frequency of the fan PWM output is 15 7kHz e Inthe Fan current detection circuit 35V line current is detected by R906 and input to fan current detection pin 9 Microcomputer detects overcurrent comparing it with the current judgment value corresponding to the fan rotation speed 53 PWM output Voltage at T Voltage at 0 Output voltage K 1 1 1 Fig 11 2 54 NOILIGNOO S3INOO38 AGOW 5 3015 ONIONIMS AGOW dO NOILIGNOO ONIZITVILINI 3015 30 3SNVHO LXAN LV 3ZNVILINI HOLO3143G HIV DNISOTO SNIMS ONIZITVILINI ONIYNG ONIONIMS 3015 330 HOLIMS NIV 3ZITTVILINI ONIMS 3015 YOLVTINOYIO AZITVILINI 6 3015 7009 HOLIMS NIV 8018 AHVHOdIN31 GALLINSNVYL SI GNVWWOO SNIMS dl SI 3qON 5 5 3015 ONIONIMS NIVOV 5 LYVLS 3015
57. ticeable loading occurs When used overtime it may loose its deodorizing function For maximum performance it is recommended to replace it every 1 year depending on application requirements J CAUTION Do not wash with hot water at more than 40 C The filter may shrink When washing it shake off moisture completely and dry it in the shade do not expose it directly to the sun The filter may shrink Do not use detergent the air purifying filter as some detergent may deteriorate the air purifying filter electrostatic performance 25 2 Washable Front Panel Remove the front panel and wash with clean water Wash it with a soft sponge After using neutral detergent wash thoroughly with clean water When front panel is not removed wipe it with a soft dry cloth Wipe the remote controller thoroughly with a soft dry cloth Wipe the water thoroughly If water remains at indicators 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 Removing the Front Panel Projection e When the front panel is fully opened with both e Move the projections of the left and right arms hands push the right arm to the inside to into the Flanges in the unit and securely release it and
58. unding terminal of the unit The insulation resistance should be 1M more as measured by 500V DC megger The initial location of installation such as window floor or the other should be checked for being and safe enough to support the repaired unit again If it is found not so strong and safe the unit should be installed at the initial location reinforced or at a new location be placed about the location of installation E it is proper or not and if it is found improper connect the grounding terminal to the earth WORKING STANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCTORS 1 Scope The standards provide for items to be generally observed in carrying and handling semiconductors in relative manufacturers during maintenance and handling thereof They apply the same to handling of abnormal goods such as rejected goods being returned Object parts 1 Micro computer 2 Integrated circuits IC 3 Field effect transistors FET 4 P C boards or the like on which the parts mentioned in 1 and 2 of this paragraph are equipped Items to be observed in handling 1 Use a conductive container for carrying and storing of parts Even rejected goods should be handled in the same way A conductive polyvinyl bag IC Conductive sponge 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
59. utton to stop operation only SLEEP button Use this button to set the sleep timer FAN SPEED selector This determines the fan speed Each time you press this button the intensity of circulation will change from AUTO to HI to MED to LOW AUTO SWING button Controls the angle of the horizontal air deflector TEMPERATURE button Use this button to raise or lower the temperature setting Keep pressed and the value will change more quickly OFF TIMER button Select the turn OFF time ON TIMER button Select the turn ON time SUPER COOL START CIRCULATION START DEHUMIDIFY START COOLING START FAN FAN SPEED LOW Precautions for Use e Do not put the remote controller in the following places STOP direct sunlight the vicinity of a heater OFF TIMER e Handle the remote controller carefully Do not drop it on the AUTO SWING floor and protect it from water e Once the outdoor unit stops it will not restart for about 3 minutes unless you turn the power switch off and on or unplug the power cord and plug it in again This is to protect the device and does not indicate a failure SLEEP TIMER YO 13 COOLING OPERATION Use the device for cooling when the outdoor temperature is 21 43 C If indoors humidity is very high over 80
60. w ones take out the old batteries 1 Remove the cover as shown in the figure and v Install the new batteries The direction of the batteries should match the marks in the case CAUTION 1 Do not use new 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 3 Use high quality and high performance AAA batteries to avoid short operating life and electrolyte leakages 21 THE IDEAL WAYS OF OPERATION Suitable Room Temperature Install curtain or blinds A Warning Freezing temperature is bad for health and a waste of electric power It is possible to reduce heat entering the room through windows di k At night please use the OFF timer A Caution operation mode together with your wake up Do not close the room for a long period of time in the morning This will enable you to time Occasionally open the door and windows enjoy a comfortable room temperature Please to allow the use the timer effectively entrance of fresh air Do Not Forget To Clean The Air Filter 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 J
61. while closing the front panel insert them into the holes slightly put it out forward 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 coating 26 AN CAUTION Please use earth line Do not place the earth line near water or gas pipes lightning conductor or the earth line of telephone Improper installation of earth line may cause electric shock A circuit breaker should be installed depending on the mounting site of the unit Without a circuit breaker the danger of electric shock exists IMPORTANT The wires in this mains lead are coloured in accordance with the following code Green and yellow Earth Blue Neutral Brown Live As the colours of the wires in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals 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 2 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 te
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