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ras-18g5

1. NOTES 1TYPE OF CAPACITOR CCERAMC DELECTROLYTIC 2 FORM HHAND INSERT INDOOR FAN MOTOR Di eu WIREB 12 f RED BLACK WHITE YELLOW BLUE PATIO D w ww www GREEN gt 54001 1 Tom m POWER SWITCH i LINE CORD RI 4 4 092 LIVE 1 2 BROW 3 4 SAFUSE 7 pp BLUE 5 5 NEUTRAL a M 3 4 S PL din IR ii RESISTOR CAPACITOR vs RESISTOR d cu e als SYMBOL 9 PIW FORM SYMBOL HF V SYMBOL MODEL vakant SYMBOL Q POW FORM 8 8 901 1902 C306 Roos 22 5 5 H 986 JK F H BZ1 PKMI3EPY H 141 5 176 A L4 9 0 U 2004 1M 5 1 4 RCR C002 0 01 C P R211 5 1 6 8 Je 5 C 10 H mp FUSE P212 47 5 hZ6 A z Es R102 1K 5A h10 C B Co04 0
2. The power relay is delayed by 2 seconds from the start of thermostat Note e The min ON time of the power relay is 3 minutes and the min OFF time also is 3 minutes 2 In other modes than Automatic Same as above but operation is made with the velocity set at the time of operation start also is 3 minutes The indoor fan is not delayed with operation start by ON OFF button 2 Set temperature is higher than room temperature Notes e Forced operation by ON OFF Settemperature button ON is executed even 0 86 deg with thermostat OFF 0 33 deg aa e The room temperature 30 sec 1 after operation start minus ONOFF Switch H 30sec 0 0 66 deg becomes the set Fan Speed L pes temperature 2 sec 2 sec e When the room temperature Power relay Ee 16 ower 16 Operation lamp becomes the set temperature The other operations are the same as for 1 No Cooling Sensor dehumidification Circulation Control function 1 S See I I Operation stop repeated independent of timer reservations Mperauon ON OFF switch Reservation O
3. COOLING DEHUMIDIFYING SUETON TANK OUTDOOR UNIT cc SERVICE INDOOR UNIT VALVE SINGLE ENDED UNION 8 4 Li 012 70 1 2 s Se THERMISTER n SERVICE VALVE 96 35 1 4 STRAINER 3 SINGLE ENDED UNION 43 DESCRIPTION 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 OFF 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 44 2 Reset Circuit 12V Micro computer R205 ao ZD202 gt ANN c R234 AX 3X S e ANN e 7 RES e 0201 C202 N 852 ms o V e e e ov v OV A 12V DC12V Line 7M 5V 4 POWERON POWER OFF Micro computer Pin 7 5V e The reset circuit is used to reset the program to its initial settings when the power is turned on 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 e The
4. above 700mm inner diameter o 16mm Please use insulated drain hose for the indoor piping commercial product NAMES AND FUNCTIONS PART INDOOR UNIT OUTDOOR UNIT CHID 0 Pre filter To prevent dust from coming into the indoor unit Refer Instruction manual Front panel Indoor unit indicators Light indicator showing the operating condition Refer page 7 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 and insulation pipe for piping Air inlet Back and Left side Air outlet MODEL NAME AND DIMENSIONS MODEL WIDTH mm HEIGHT mm DEPTH mm RAS 18G5 1030 295 207 RAC 18G5 850 650 298 D INDOOR UNIT INDICATORS OPERATION LAMP This lamp lights during operation TIMER LAMP This lamp lights when the timer is working 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 pressed while the device is on STANDBY OPERATION INDICATOR
5. 52 PARTS LIST AND DIAGRAM INDOOR UNIT MODEL RAS 18G5 53 MODEL RAS 18G5 PART N0 RAS 18G5 PMRAS S18CAK Q TY UNIT PARTS NAME CABINET PMRAS 40CNH2 MOUNTING PLATE PMRAS 70YHA PMRAS 70YHA FAN MOTOR TANGENTIAL FLOW FAN PMRAS 25CNH2 P BEARING ASSY PMRAS 51CHA1 PMRAS S18CAK FAN MOTOR BASE CYCLE ASSY PMRAS 51CHA1 FAN COVER PMRAS 18CP5 PIPE SUPPORT NI O O O N PMRAS S18CAK DRAIN PAN ASSY k PMRAS 18C9 AUTO SWEEP MOTOR PMRAS 63CA2 PMRAS 18KHT1 P W B LED FRONT COVER ASSY PMRAS 18KHT1 FRONT PANEL PMRAS 10C7M PMRAS 51CHA1 CAP FILTER PMRAS 10C9G REMOTE CONTROL ASSY PMRAS 10C3M PMRAS 51CHA1 REMOTE CONTROL SUPPORT THERMISTOR SUPPORT PMRAS 70YHA THERMISTOR PMRAS 18CP2R PMRAS S18CAK POWER SWITCH P W B MAIN PMRAS 70YHA TERMINAL BOARD FUSE PMRAS 70YHA P W B RECEIVER 54 ENEE PARTS LIST AND DIAGRAM MODEL RAC 18G5 7 55 MODEL RAC 18G5 PART NO RAC 18G5 50 4 Q TY UNIT PARTS NAME SV COVER PMRAC S18CAK COMPRESSOR PMRAC 18GH4 PMRAC 50NH4 COMPRESSOR RUBBER VALVE 25
6. YES 4 Wait for 3 minutes before forced re operation by the service switch Replace faulty part Replace faulty P W B 51 Timer Lamp break down checking in 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 II sec I 2 times or under balancing after forcible operation DC Fan motor over current of 1 Indoor Fan is locked i electricity 2 IL 10 times indoor DC Fan motor has over 2 Indoor Fan motor damage GE 3 Indoor control circuit board IC 401 Data read wrongly IC401 data is not in order In case data read from 1 401 3 B 13 times is wrong Heat exchanger thermistor 1 Thermistor error Tn TE Pp 14 times Heat exchanger thermistor open EE or short circuit detected Room thermistor error 1 Thermistor Room thermistor error open or 5 sec 15 times short circuit detected 2 Indoor control circuit board 0 5 second 0 5 second CAUTION Remote control is disabled while the Timer lamp is flashing To check operation turn off the power switch and turn it on again
7. C 0301 114 NDUCTOR La IT 5 Wie C B 0302 DIC114EKA e 5 x MII i 8 Reso 5 Wis om FUNT T eu a amp LD 721 OPERATONMYEL D 3 AAA TE S 8 E Re60 5 C 2305 L110 JUMPER co mem e ud di Teter 12 LD 723 FILTER ORG R723 x 59 iu g R667 10K 5X 6 C A L113 EXCELSA35 A 27 j9 12 2 668 10K 5 Vie C L114 EXCELSA35 R725 a 2659 10 5 PHOTOCOUPLE N CT 5p lt Bg lt 1901 HF70BTL3 5X6H Se ee ee 58 THERMSTOR 5721 20 5 Vio C SYMBOL MODEL L902 HF70BTL3 SXGA A SERVICE 2 RESISTANCE 10 257 723 0 5 ki0 C A 107 TLP424BL 12V 5 B CONSTANT R725 20 5Z C 1 FNR H RECEIVER PWB 0144 L NSTANT 3950 825 50 A 1 D 6 D um H801 3 15 C B EX TLP421BL C A IC B D C Ri m RELAY e TRA 9 t 1 me 157 Wie smo bo 70141 3 D oz 8852 10 5 pte C A SYMBOL MODEL FORM MOUNT IC1 26433683807 AX 4XIC 5 a 12V oi RB53 10K 5 C A g TH 10001 STR V852 H at R211 2 rr 4 IC101 KIA7805API H GND 1 6 1 ROO
8. QG The operation does not stop even raising the room temperature setting of remote control at a dehumidifying operation In the dehumidifying mode the temperature set by remote controller is set slightly higher than the room temperature but the operation starts 49 Check whether frost sticks the heat exchanger of indoor unit or not Wait for 3 4 minutes until the frost melts gt The fan speed is always LO at a dehumidifying operation To improve the dehumidi fication efficiency LO fan speed operation is performed Therefore the air is cold This is not a trouble At a dehumidifying operation the actual m temperature is compared with the room temperature setting when starting the operation and the operation is as follows 1 When actual room temperature room temperature setting The operation is according to the room temperature setting on the remote controller 2 When actual room temperature room temperature setting Regardless of the room temperature setting the temperature is automatically set slightly lower than the room temperature In this case the status is as 2 and therefore the operation 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 operation by the On Off switch amp e This i
9. e This figure shows the opening condition of front panel Refer to page 21 in relation to how to open or close the front panel TEMPORARY TEMPORARY SWITCH Use this switch to start and stop when the remote controller does not work 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 Note e Avoid to use the room air conditioner for cooling operation when the outside temperature is below 21 70 The recommended maximum 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 e 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 e Make sure to conn
10. C 0 33 Low temperature defrosting SH ONE 20 9 0 Other detailed specifications When the room temperature starts to increase within 3 minutes after thermo OFF in cooling and fan speed AUTO the fan speed changes L gt M gt H as when thermo ON If cooling is selected during sensor dehumidification operation the operation continues as H is with the thermo ON The 3 minutes delay is not started The set temperature and fan speed depend on the remote control signal It is same for cooling sensor dehumidification It is same for AUTO sensor dehumidification cooling sensor dehumidification cooling The filter sign lights after 200 hours operation of the room fan The time is cleared when the AUTO SWING button is pressed while the device is on STANDBY MODE If the operation is made by the nice temperature reservation during the Sleep operation the normal operation continuously occurs and for the advance time the temperature difference between the set temperature without sleep shift and room temperature is used 41 REFRIGERATING CYCLE DIAGRAM MODEL RAS 18G5 RAC 18G5
11. C901 B R850 R503 47 5 C B 902 0 47 0 97 SCI HEX SELECT 2 A504 3 3 5x ES CIS C903 0 0 so egen 8507 7 55 5 h 2 C B 905 0 0 x C P R344 CD ANO SWAY VALVE 53 gt 508 10K 5 C 06 2200p hooo C P me EGO I gt R509 s 5 C 907 B 10358 R315 m SZ E R510 15 5X B CONNECTOR E 5 gt e 991 o1 50 amp 80 12 H603 K 5 C A coo o1 5 C 1 EI EDI 5604 2K 5 C C993 o1 50 MOUNT 71 R320 m 504 SYMBOL FORM 5 5 gt 20K 5Z Vis C C994 H R ISIDE t os SO 2 5 TER 8609 154 Vie C A me Ge 2 F 05 ti 5 R611 10K 5Z Vite C A unus 614_ 5 Vi C TRANSISTOR E GE 09 5 05 7 08 9 0 0 2 3 0 8 16501 F616 K 15 VO C SYMBOL MODEL CN11 CT 6P V H Y 2 2 617 4X Vio C ESOS EAE zT CN12 B4B PH KCS H R618 5 1 0 C A 0503 25C2412K A CNi3 JES PH K S 4 MUN Wi CN14 B4B XH K S H 5 5 B D 9620 10K 5Z pi6 C A 0201 25 24621 C E 0202 25 11215 INDICA WB 5 5 25 g 2 R622 10K 152 C A 0203 DTC114EKA E e 1 1 Rce7 ik 5
12. PMRAC 18GH4 VALVE 4S PMRAC 63CA1 PMRAC 40CNH2 CONDENSER FAN MOTOR SUPPORT PMRAC S18CXK FAN MOTOR PMRAC 30CH7 PROPELLER FAN CO N PMRAC 63CA1 TERMINAL BOARD 2 PMRAC 63CHA2 COMPRESSOR CAPACITOR PMRAC 63CHA2 PMRAC 40CNH2 FAN MOTOR CAPACITOR SIDE PLATE L PMRAC S18CZT CABINET PMRAC S18CAK PMRAC 24CP5 SIDE PLATE R NET PMRAC 24CP5 TOP COVER PMRAC S18CAK PMRAM 52QH5 STRAINER COND 56 HITACHI RAS 18G5 RAC 18G5 PM NO 0485E ade in Malaysia
13. e lt the fuse all right When it does not operate e 5 the voltage extremely high or low e Is the circuit breaker ON e Was the air filter cleaned e Does sunlight fall directly on the outdoor unit When it does not cool well e ls the air flow of the outdoor unit obstructed Are the doors or windows opened or is there any source of heat in the room e ls the set temperature suitable V C Notes e In 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 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 e 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 e Power supply shall be connected at the rated voltage otherwise the unit will be broken or could not reach the specified capacity Please note On switching on the equipment particularly when the room light is dimmed a sli
14. for setting temperature at setting time The starting time may different depend on the room temperature and set temperature HITACHI ADJUSTING THE AIR DEFLECTORS 1 Adjustment of the conditioned air in the upward and downward directions HITACHI 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 E desired angle using the AUTO SWING button es O e ifthe 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 e 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 lt Hold the vertical air deflector as shown in the figure am sm and adjust the conditioned air to the left or right SE GIRS I 1 cT HOW TO 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 b
15. narrow and wide dia pipes Piping length is within 15m Height different of the piping between the indoor unit and the outdoor unit should be within 10m Power supply cord length is about 2m Connecting cord 2 5 dia x is used for connection When power supplies to indoor Unit Indoor Unit 2 gt Line cord Outdoor Unit gt 9 Connecting Cord 26 MODEL RAC 18G5 340 26 22 20 64 104 mmm El Dna QO LO o o rasa o Air suction Air outlet grille Holes for anchor bolt 2 012 More than 700 Fixing hole More than Notch for anchor bolt Service space 2 912 Notchs 27 MAIN PARTS COMPONENT THERMOSTAT Thermostat Specifications MODEL RAS 18G5 THERMOSTAT MODEL OPERATION MODE 60 1 INDICATION 15 6 16 15 3 59 5 TEMPERATURE F INDICATION 23 6 74 5 60 1 59 5 4 5 24 23 3 73 9 88 9 88 3 INDICATION 31 6 88 9 32 31 3 88 3 FAN MOTOR Fan Motor Specifications MODEL RAS 18G5 RAC 18G5 PHASE SINGLE RATED VOLT
16. room temperature becomes lower than the setting temperature 13 CIRCULATION OPERATION Press the button so that the display indicates CIRCULATION 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 lt T As the settings are stored in memory in the remote controller you only have to press the CIRCULATION button next time Press the O STOP button to stop operation Circulation Function e During circulation operation compressor does not run and there is no cooling operation with only indoor fan running e When the setting temperature is higher than room temperature indoor fan will stop running 14 HOW TO SET THE SLEEP TIMER Press the SLEEP button and the display changes as shown below Mode Indication Sleep timer 1 hour 2 hours 3 hours 7 hours 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
17. temperature difference OT compensation time HT MT is at least 5 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 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 The preset temperature value shown above does not include any shift value 2 Compensation The Attained state is monitored and a Not attained check is done to revise the compensation time HT Attained monitor Continuously monitored during NICE TEMPERATURE operation Cooling When the room temperature lt Set value compensation shift it is regarded to be attained and 5 minutes are reduced from the cooling compensation time Not attained check Performed once when the NICE TEMPERATURE timer is completed r Cooling When the room temperature gt Set value compensation shift 1 C it is regarded to be Not attained and 5 minutes are added to the cooling compensation time If the room temperature is within 1 C from the set value compensation shift c
18. 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 4 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 5 This room air conditioner should not be used at the cooling operation when the outside temperature is below 21 C 70 F 6 When the operation button is set to cool from other mode the compressor will stop for about minutes as IC delay circuit protection SPECIFICATIONS MODEL RAS 18G5 RAC 18G5 FAN MOTOR 30 W 40 W FAN MOTOR CAPACITOR NO 2 5yF 450V FAN MOTOR PROTECTOR NO YES INTERNAL COMPRESSOR ASH210SV C8LU COMPRESSOR MOTOR CAPACITOR NO 60uF 450VAC OVERLOAD PROTECTOR NO YES INTERNAL OVERHEAT PROTECTOR NO YES INTERNAL FUSE MICRO COMPUTER CIRCUIT 3 15A NO POWER RELAY G4A NO POWER SWITCH YES NO TEMPORARY SWITCH YES NO SERVICE SWITCH YES NO YES SWITCHING TRANSFORMER POWER SUPPLY NO
19. 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 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 HITACHI CIRCULATION START pressed and the value will change more quickly DEHUMIDIFY START OFF TIMER button Select the turn OFF time COOLING START ON TIMER button Select the turn ON time FAN iw Precautions for Use e Do not put the remote controller in the following places iE a e direct sunlight OFF TIMER e the vicinity of a heater X AUTO SWING e Handle the remote controller carefully Do not drop it on the 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 11 COOLING OPERATION Use the device for cooling when the outdoor temperature is 21 43 If indoor humidity is very high over 80 some
20. waveforms at each point when the power is turned and off are shown in the diagrams e When the power is turned on the voltages of the DC 12V line and DC 5V lines are increased When the voltage of DC 12V lines reaches about 7V ZD202 is turned ON the potential of Q201 s base rises and Q202 is turned ON Since Q202 s collector is set to LO at this time Q202 is turned ON and the reset input of the micro computer is set to Hi The DC 5V 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 12V line decreases When it becomes below 7V ZD202 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 45 3 Buzzer When the buzzer is to be activated buzzer output 89 of the micro computer alternates between ON and OFF repeatedly at 4kHz and 0302 is turned ON OFF accordingly A 4kHz voltage is applied to the buzzer Re 3 o BUZZER Micro computer AX 3X and the diaphragm of the buzzer vibrates to output 4kHz sound 4 Receive circuit 12V R212 oa 141 R211 Receiver Unit ka ZD141 4 DN DN Infrared signals from the wireless remote controller are received by the light receiving unit and output after being amplified and shaped 46 Micro co
21. 1 1100 C H SE otso Joa oO A103 5 1 C B coos C P MOUNT CAPACITOR COMMON M 5548 5 5 0102 8104 5 h10 C C101 20 C P SYMBOL MODEL FORM SIDE BLACK LOD R105 33X 5 C C102 40 D LXZ 3AFUSE 250V 35A H SYMBOL V TYPE FORM A A 4 9 0101 R106 150K 1 C A C103 1800 2 D H LO Lu 00351 31 R C211 47 116 b V R107 30 57 1 41 C B 104 01 25 t MM 2 00351 31 R C212 5 R108 105 12 1 H RCA C106 R CE 0 rise 0 62 5 P pax 107 o1 1 C C B SWITCH IC R108 CNi R133 1M 5 C B C108 8 Ri34 32 5 h 2 09 P SYMBOL MODEL SYMBOL wg FORM q fo 5 C101 R135 750 5 C A 0 01 m C P Sw2 5550011700 H IRR RPMGG38 V4 H 2 12 112 0 01 P gt 5 8 C113 0 01 C P THERN FUSE ZE R20 Wig C ciu oo um c P ZENER DIODE TRANSISTOR 8 202 5 1k 5 6 C C115 0 01 C P IEE R203 sx hs C C116 0 01 C P Re04 5 1K 5 6 C 117 o0 P SYMBOL MODEL Mus tom 12V R205 27K 5 his C A C118 0 01 C P 70202 RLZ75B 8141 KTC3199 Y R A R209 Vis C C119 0 01 C P 70
22. 201 RD15UJN3 SWITCH 5 R210 1M 5Z Wie C B 70901 C A B 1 1 0 150 PF 70902 1073 6B S M c132 yp 5 C B SYNBO MODE FORM K p221 110 5 hra C B C133 5 C A a Wie EVOPACOSP H 19 Reee 110 5 B C134 DZ A amp OOOO A232 5 Wo C IB SURGE ABSORBER S Ere R233 390 5 h a C C201 100 63 D m T P 5 C coo o1 MODEL Ir ZENER DIODE s 203 25 c cC A 1 416NS 12D GIE 9 R302 5 6 A C204 01 C VA002 416NS 12D SYMBO FORM 1 3 R303 10 5 1 6 C A 205 ot 25 VA003 416NS 12D P L T 4 Em OO OF 92 R304 hs C coo o1 64001 RA 102M C5 R 20141 HZSGBILTA 4 A307 5 6 C A E Bs L4 R308 18k 1 h6 C A C208 01 5 cC OSCILLATOR 0 ECTOR 231 SR I T ES 203 RES R309 sx has C A 209 01 25 pm I 9 R310 12 7 1 Wig C A SYMBOL L FORM Wi 4 1 R311 10K sx yi C c215 100 5 C B MODEL FORM KOANT SE H 16501 H 5 5 R312 10 5 wie C 5 1 CSTLS10MHZ R 1 1 2 C303 0203 s R313 10K 5 6 C 100 59 C e 6664096060000 para uc S ie C LA ED STEP
23. AGE 220 240V RATED FREQUENCY 50 Hz OUTPUT 40 W POLE NUMBER 6 INTERNAL THERMAL FUSE CONNECTION 100 322V ov BLACK 15V 0 6 5 RESISTANCE VALUE 0 28 COMPRESSOR MOTOR Compressor Motor Specifications MODEL RAC 18G5 COMPRESSOR MODEL ASH210SV C8LU PHASE SINGLE RATED VOLTAGE 220 230 V RATED FREQUENCY 50 Hz LOCKED ROTOR CURRENT A0 A POLE NUMBER PROTECTOR ORANGE CONNECTION 20 C RESISTANCE VALUE 68 F Q 75 C 167 F EXTERNAL OVERLOAD RELAY INTERNAL PROTECTOR S RED R ORANGE 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 29 HIR JH SB 05929522 eeng N me So ERR 10 IO 2 d3M0Od 1 TGA NES 2303 9 9N1123NNU3 8908 o LINN YOOGLNO LINN HOOQNI J31OIA yovga AUD LHM NMOHS MOTISA anig ma HOLONN d33NS HOLIOVdVO lt 2 3snd 9 uaauosav 5 HOLIOVdV
24. FF timer z m ang Both operation lamp during Sensor dehumidification at Timer lamp ke operation mode Timer memory SE Timer OFF timer during stop Cancel Change of the reservation time 2 operation ON OFF switch L 1 1 Reservation 1 l l ON timer Operation lamp E Timer lamp Timer memory ON timer during operation Cancel Change of the reservation time e HI MED or LO operation is executed Automatic according to the thermostat signal Refer to Thermostat operation Fan speed HI Operation in HI mode e Same as on the left Repetition of and Stop by means of thermo signal and time 3 mode LO and Stop are repeated according to the thermostat signal independent of the setting MED Operation in MED mode e Same on the left Repetition of MED Stop by means of thermo signal and time LO e Operation in LO mode e Same as on the left e Repetition of LO Stop by means of thermo signal and time Only circulation with cut velocity 1 In case of Automatic mode 1 When the set temperature is lower than the room temperature is executed independent of the thermostat signal 2 3 1 Set temperature Set temperature gi 1 3 3 1 Strong ON OFF Switch ON OFF Switch Fan Speed w On Off switch Fan Speed H 2 sec 2 sec Fan Speed Fan Speed Power rela
25. HITACHI Inspire the SERVICE MANUAL TECHNICAL INFORMATION REFER TO THE FOUNDATION MANUAL FOR SERVICE PERSONNEL ONLY CONTENTS SPECIFICATIONS 4 HOW TO USE 6 CONSTRUCTION AND DIMENSIONAL DIAGRAM 26 MAIN PARTS COMPONENT 28 WIRING DIAGRAM 30 CIRCUIT DIAGRAM 81 PRINTED WIRING BOARD LOCATION DIAGRAM 33 BLOCK DIAGRAM ssh 35 BASIC MODE s T 37 REFRIGERATING CYCLE DIAGRAM 43 DESCRIPTION OF MAIN CIRCUIT OPERATION 44 AUTO SWING FUNCTION 48 SERVICE CALL Q amp A 49 TROUBLE SHOOTING 54 PARTS LIST AND DIAGRAM 57 RAC 18G5 SPECIFICATIONS WALL TYPE INDOOR UNIT OUTDOOR UNIT MODEL RAS 18G5 RAC 18G5 POWER SOURCE 1 50 Hz 220 230 V TOTAL INPUT W 1620 1620 TOTAL AMPERES A 7 70 7 40 5 25 5 25 17 910 TYPE COOLING CAPACITY DIMENSIONS mm NET WEIGHT SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IM
26. LINI ONIMS 4015 1009 NO HOLIMS NIVIN dOLS AHVHOdI A3 Q3 LLINSNVH L SI SI 9NIMS SNISNIAS 4015 ONIONIMS ONIN NIVOV ONIMS LYVLS 4018 HoOLVInoadlo 440 OWH3H 34O TVNH31NI NO OWH3H D NO TVNH3LNI IN3INON 3HL LV 4018 SNISNIAS D 1HVIS YOLVINOYID LNAWOW LY dOLS ONIONIMS D ONIDNIMS 1HVIS LNAWOW LY 4015 ONIMS 1X3N LV AZITVILINI D 401937430 HIV DNISOTO 4015 AGOW LAdNI A3M 3ONdddd3d NOI1VOIdJI93dS HO193133Q NOIJVH3dO NOILVH3dO NOILIQNOO LN3S3tdd NOILONN4 9NIMS OLNV IVNSIS 48 SERVICE CALL Q amp A Cooling operation ao While cooling the compressor sometimes stops abruptly J Dehumidifying operation The fan speed does not change during a dehumidifying operation Cold air comes out during a dehumiditying operation 42
27. M THERMSTOR m m 1 102_ KIA431A R Oe cr RESISTANCE 25t SE 1 2 am 7 H CT 6P R905 1M 5 h2 C B C401 BR24LO2F W CIA 67 CONSTANCE 3950 825 501 R306 tX 4 C 16501 KID55003AF R907 1 C B C1 M2 4 R908 1x 1X ue 9909 220K 54 2 P A910 2995 33 LINDYID MOOTD YALNdWOOOHYOIN YOLOW d33MS OLNV 19999 E LIno9Hl9 NOILVHado NOLLVOIONI 5 NIZITVILINI H3ZZni8 x HOLSIIAH3H L H39NVHOX3 1V3H z 79 c m HOLSIIANH3H L 3univuadial NOOH avia lt J LINOUIO H3TIOHLNOO SS3 13UIM ALOWSY SSATAYIM YOLOW YOOaLNO 3 YOLOW HOOQNI NOIL VH3dO YOLOW 20 lt i H3MOd lt Addi H3MOd LINN HOOQNI 981 8 OO 35 BASIC MODE MODEL RAS 18G5 RAC 18G5 Operation mode
28. NG BOARD LOCATION DIAGRAM MODEL RAS 18G5
29. O Hrl 09 HOISIHVA Q 0 201 IWNINHAL dz 3Snd Y0193L0 Hd TVNH3INI 3SION HOLIMS H3MOd HOISIWNH3HI D quoo Gi YOLOW HOLSINYSHL NOOY TVNINH3L 1 HOSS3HdWOO S081 0VH SO81 SVH T3QOMW SNIdIA 30 CIRCUIT DIAGRAM Remote Control R4 2SD1781 P Q R etc Q1 220 X 2 E Se A lt o cN z3 T Ae gri v g 6 z o Ag 9 rl V M 59 e ES Eh 6 8 a 2 58 He 2 lt T 5 E 91 e 5 e n 1 0 o 9 v 20 0 MN 1 d LLH 99 CI a 9 s 52 3855 9 5 9 X X 2 lt gt gt gt E 7 OO 2 od LWOO gt ZINOO WOO Ee Eld 09 LL 0093S eo T 10938 O s 20938 014 580945 5093 9 0d 7093 50945 104 9093 00d 20938 8zd 8093 SS J NET zzd CN CN 0 42 gt o N o D 44 9 ZE 7 JSW1 K06 ko2 K05 GR GE 31 PRINTED WIRI
30. PING Z n D 9V R345 10K 5 6 C cor ISP AY c oj TEs 0 4 SE c IE SE w X C D od SS OI RON TEMP 69 i R309 i ROOM THERMSTOR x 401 oi s R Di SHAG men FORM Gi 3 e HG 8 HEX TEMP SENSOR 63 i THERMISTOR S MODEL CN13 R307 Le Ti R324 10K 5 C 5 1 000 c DIODE LD721 Pur H PH 5p M 317 FAN OVERCURRENT DETECT 69 R410 625259 5 e i C502 10 6 D R KL LD723 505 H A e PWM FEEDBACK Le 8401 390 5 6 C C503 01 25 MOUNT LD725 H MF K405 H R318 6 R411 0 R402 390 5X 6 C C504 01 SYHBOL H HN Ch 93 NO USE 69 a NMI 403 5 1K 5x Vite C 6505 100 s por dere CN6 R404 5 4K 5 1 16 C A m Lei 22 NO USE 69 2103 155355 CONNECTOR Ad n A410 10K 5x pte C A C601 ot 25 AM CDN USE 3 d Rati 10k 85 Us Dise 145044 SYMBOL MODEL FORM es B Rate sx Vis C 4 amp j 3 7 R413 10K 5 C A C723 5 133 155355 M ES CN2 ZR 4p H Pate du 6 Ir 0301 D134 U1GU44 R313 eo 2 R501 4X 5 hZ4 C s Lol 59 R502 4 3 5 1 10
31. PROVEMENT ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT MARCH 201 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 grounding terminal of the unit The insulation resistance should be 1 or more as measur
32. VARISTOR 450NR NO NOISE SUPPRESSOR NO NO THERMOSTAT NO REMOTE CONTROL SWITCH LIQUID CRYSTAL YES NO FUSE CAPACITY 20 A TIME DELAY FUSE 14100 REFRIGERANT CHARGING VOLUME ADDITIONAL REFRIGERANT R410A Refrigerant R410A FIPES MIN pe AT 15g PER EVERY METER IF PIPE LENGTH MORE THAN 8m Figure showing the Installation of Indoor and Outdoor Unit In case the pipe length is more than 8m add refrigerant R410A at 15 gram per every meter CAUTION exceeds However pipe length shall not exceed 15m Be sure to completely seal any gap s above 50mm above 100mm above 100mm must not bend about 400mm about 300mm l 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 ACC above 200mm The difference in height between the indoor and outdoor unit should be kept max 10 give clearance as The connecting pipe no 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 50mm when installed on the t above 100mm ceiling of balcony 9 SQ y hh Ce above 200 connection of insulated drain hose
33. a beep from the indoor unit m 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 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 zer be controlled 2 C above the E temperature the FAN d SPEED will be set to LOW an setting 1 hour after the setting Sleep S 1 dehumidifying of the sleep timer timer set 1 T 7 hours later i O later d d hour ater 3 hours later 15 HOW TO SET THE TIMER Timer and OFF Timer are avallable OFF Timer Reservation OFF TIME setting Select the OFF TIME by pressing the OFF Button e Setting time will change according to the below sequence when you press the button 1 hour interval M 1 3 23 9 71071127179 T CANCEL OFF TIMER J ON Timer Reservation ON TIME setting Select the ON TIMER by pressing the ON Button e Setting time will change according to the below sequence 1 hour interval 1 3 2 j 3 9 310 21 11 A CANCEL ON TIMER 16 Operation stop at setting time Operation will start
34. acelet 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 b 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 Clip for connection with 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 Working table Resistor of 1MQ 1 2W 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 n 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 2 When it thunders near by it is recommended to stop the operation and to disconnect the power cord plug from the power outlet for safety 3 n
35. amp To prevent TV interference place at least 1m away 20 ATTACHING THE AIR PURIFYING 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 e Pull up the front panel by holding it at both sides with both hands 2 Remove the pre filter e Push upward to release the claws and pull out the filter 3 Attaching the air purifying filters e Attach the air purifying filters to the frame by gently Claws compress its both sides and release after insertion 4 places into pre filter frame A 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 portion as shown in figure and close it NOTE e In case of removing the air purifying filters please follow the above procedures e The cooling capacity is slightly weakened and the cooling speed becomes slower when the air purifying filters are used So set
36. anel at three arrow portions as shown in figure and close it NOTE e Air purifying filter should be cleaned every month or sooner if noticeable 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 e Do not wash with hot water at more than 40 C The filter may shrink e 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 e Do not use detergent on the air purifying filter as some detergent may deteriorate the air purifying filter electrostatic performance 22 _ Washable Front Panel e Remove the front panel and wash with clean water Wash it with a soft sponge After using neutral detergent wash thoroughly with clean water e When front panel is not removed wipe it with a soft dry cloth Wipe the remote controller thoroughly with a soft dry cloth e 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 Arm e When the front panel is fully opened with both e Move t
37. atteries in the remote control device need to be removed and replaced with new ones 5 E Remove the cover as shown in the figure and N take out the old batteries J Install the new batteries N The direction of the batteries should match the Mc marks in the case 22 A CAUTION 237 0 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 3 Use high quality and high performance AAA batteries to avoid short operating life and electrolyte leakages 18 THE IDEAL WAYS OF OPERATION Suitable Room Temperature fe A Warning Freezing temperature is bad for health and a waste of electric power A Ventilation Caution Do not close the room for a long period of time Occasionally open the door and windows to allow the entrance of fresh air Ix 2 Do Not Forget 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 19 Install curtain or blinds It is possible to reduce heat entering the room through windows Ne A Effective Usage Of Timer At night please use the OFF or ON timer o
38. dew may form on the air outlet grille of the indoor unit 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 the D OPERATION lamp lights The cooling function will start as soon as you set the temperature below the current room temperature HITACHI Set the desired FAN SPEED with the 8 FAN SPEED button the display indicates the setting amp 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 HITACHI N W M lt LOW Low fan speed mode Set the desired room temperature with the TEMPERATURE button the display indicates the setting ent 4 The range of 25 28 is recommended as the room temperature for cooling If the temperature setting is 27 the room temperature will be controlled at around 27 C The temperature setting and the actual room temperature may vary somewhat depending on conditions Press the O STOP button to stop operation lt 27 As the settings are stored in memory th
39. e remote controller you only have to press the COOLING button to repeat the same setting next time 12 DEHUMIDIFYING Use the device for dehumidifying when the room temperature is over 16 When it is under 15 C the dehumidifying function will not work v Press the button so that the display indicates O DEHUMIDIFY Dehumidifying operation starts with beep The FAN SPEED is set at LOW automatically The FAN SPEED button does not work EE Set the desired room temperature with the TEMPERATURE button the display indicates the setting HITACHI The range of 20 26 C is recommended as the room temperature for dehumidifying Press the O STOP button to stop operation STOP J 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
40. ect earth line 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 e Do not reconstruct the unit S Water leakage fault short circuit or fire may occur if you reconstruct the unit by yourself 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 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 e Be sure to use the specified piping set for R410A Otherwise this may result in broken copper pipes or faults e A circuit breaker should be installed depending on the mounting site of the unit Without WARNING 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 d 350 fire if flammable gas leaks around it 27 e Please ensure smooth flow of water when installing the drain hose PRECAUTIONS DURING SHIFTING OR MAINTENANCE e Should abnormal situation arises like burning smell please stop operating the unit and turn off the circuit breaker Contact your agent Fault short circuit or fire may occur if you co
41. ed by a 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 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 rela tive 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 body earth Make yourself a body earth by passing 1 earth resistance through ring or br
42. er selecting a Dehumidifying operation 10 At a Dehumidifying operation the LO fan mode the fan speed mode remains LO fan 5 speed is forcibly selected speed 50 TROUBLE SHOOTING E No cooling Operates by setting the service switch to forced cooling No operation at all 1 Before using the service switch disengage 1 and engage the plug Do not operate the remote controller Le Check the following parts and replace if faulty N YES 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 Return the service switcht Normal 3 Power switch Check the continuity between contacts 4 Thermal fuse for 102 C Continuity across If there is no continuity C Terminal board check the electric parts and replace if abnormal Set the remote controller to 2 Before checking the varistor detach a terminal operation status and press the cooling button Q Is the level LO approx 0 5V between driver IC501 pin power Power relay Replace Power relay and OV YES Compressor does not turn at LO Is voltage normal approx 280 ee 380V at out put side of the DB201 Check the NO Q control board
43. ght brightness fluctuation may occur This is of no consequence The conditions of the local Power Supply Companies are to be observed NOTE If the supply cord is damaged it must be replaced by the manufacturer its service agent or similarly qualified person in order to avoid a hazard 25 CONSTRUCTION AND DIMENSIONAL DIAGRAM MODEL RAS 18G5 Top air suction grille Front cover lt Y LO About 380 lt gt 8 e View from back Pipe lead out Note Discharge grille Horizontal Vertical deflector 47 16 8 S m 60 120 5 lt gt lt 263 450 317 gt lt gt gt 70 ES X When piping is v drawn horizontally exchange the drain hose for the drain cap Drain cap connection port Narrow pipe 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
44. he 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 while closing the front panel insert them into the holes slightly put it out forward CAUTION lt e Do not splash or direct water to the body of the unit when cleaning it as this may cause short circuit BENZIN INNER e Never use hot water above 40 benzine gasoline acid thinner or a brush because they will damage the plastic surface and the coating 3 MAINTENANCE BEFORE LONG OFF PERIOD e Run the unit by setting the operation mode to PE CIRCULATION the temperature to 16 C and the fan speed to HI for about half a day on a fine day and dry the whole of the unit Air d e Switch off the power plug Bow E V ELEME J 23 CAUTION 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 e 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
45. mputer AX 3X R209 om M 3 REMOCON C215 5 Service Operation Circuit 5V R614 Micro computer AX 3X Cooling R629 9 FORCE COOL Ji O Normal SW2 SES R630 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 e The fan speed is 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 e Setting the service switch to Cooling turns on the Power relay 47 NOILIGNOO S3INOO38 AGOW SNIONIMS 041 ONIONIMS AGOW HOV3 dO NOILIGNOO 4018 AGOW NOI1VH3dO NOILVH3dO 39NVHO NOILVH3dO 1X3N LV AZIIVILINI D 401937430 HIV DNISOTO SNIMS ONIZITVILINI SNISNIAS 4018 3GQON HOV3 AAO HOLIMS NIVIN D 3ZI1VILINI 6 4018 YOLVTINOYIO D 3ZITTVI
46. ntinue 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 o z z gt gt z gt gt e e 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 e Do not attempt to operate the unit with wet hands this could cause fatal accident e When operating the unit with burning equipments regularly ventilate the room to avoid oxygen insufficiency die e Do not direct the cool air coming out from the air conditioner panel to face household heating apparatus as this may affect the working
47. of apparatus such as the electric kettle oven etc Please ensure that outdoor mounting frame is always stable firm without defect not the outdoor unit may collapse and cause danger A AY a RN t AC e Do not splash or direct water to the body of the unit when cleaning it as INA 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 flow to drain pan The water will drop on tangential fan and cause water splashing out from indoor unit e Please switch off the unit and turn off the circuit breaker during cleaning the high speed fan inside the unit may cause danger e Turn off the circuit breaker if the unit is not to be operated for a long period 8 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 e Do not place plants directly under the air flow as it is bad for the plants 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 The
48. ompensation 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 after the filter sign lamp is lit It Specification a 3 way AUTO Swing Cooling 90 in down direction dehumidi gt gt i fying SSUp UP 52 5 in up direction Air M saigi Down See blowing 52 5 in up direction Swing start direction 8 direction control Circulator gt eyes The same as cooling dehumidifying Vertical positioning 32 90 down direction 32 direction When the operation switch is gt gt turned off after the n M filter sign Vertical positioning 91 5 lamp 90 in down direction 91 E up direction lights Table 1 Specifications Item RAS 18G5 Automatic No Circulator Yes Operation switching Sensor dehumidification Yes Cooling Yes Fan No Temporary switch Yes automatic Service switch Cooling Yes Nice temperature reservation Yes Defrosting Yes Sleep circuit Yes Heater operation at the time of sensor dehumidification No Automatic blowing direction Yes Filter sign Yes Wireless mode Cooling Table 2 Sensor operation values Item RAS 18G5 ON temperature Cooli 16 17 0 Thermostat operation Thermostat relay den 2 22 24 25 0 power relay C ehumidification 356 Differential
49. peration mode together with your wake up time in the morning This will enable you to enjoy a comfortable room temperature Please use the timer effectively 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 FOR USER S INFORMATION The Air Conditioner And The Heat Source In The Room Caution If the amount of heat in the room is above the cooling capability of the air conditioner for example more people entering the room using heating equipments and etc the preset room temperature cannot be achieved 5 When the indoor unit is not to be used for 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 Not Operating For A Long Time Warning To protect the whole unit during lightning please stop operating the unit and remove the plug from the socket When Lightning Occurs Interference From Electrical Products Caution To avoid noise interference please place the indoor unit and its remote controller at least 1m away from electrical products Inverter type fluorescent l
50. refore do not operate under such condition for a long time e f the amount of heat 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 10 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 reduce humidity in the room or start operation COOLING button Use this button to set cooling mode in the room or start operation RESET button STOP button Press this button
51. s the status in 2 of A4 The temperature is set a little lower than the room temperature to carry out a dehumidifying operation as far as possible Common etc There is difference between the m temperature setting and actual room temperature There may be a difference 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 Nice temperature reservation Q7 In case of ON timer the operation PNE A7 The Nice temperature reservation TN not start at a preprogrammed time but a The operation starts earlier so the room little earlier temperature will be as set at a programmed time The operation starts at most 60 minutes before P a preprogrammed time J 8 The time to start an operation is The Nice temperature reservation ageet A while preprogramming at the same time The starting time depends on the room load 2 Wireless remote controller Q9 When the room temperature setting is 16 e The room temperature is settable within the pressing the room temperature control button range of 16 32 and not beyond V causes no transmission At 32 pressing causes no transmission either Aft
52. 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 1 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 terminal 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 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 PLEASE CHECK THE FOLLOWING POINTS BY QUALIFIED SERVICE PERSONNEL EITHER EVERY HALF YEARLY OR YEARLY CONTACT YOUR SALES AGENT OR SERVICE SHOP d 1 Is the earth line disconnected or broken 2 the mounting frame seriously affected by rust and is the outdoor unit tilted or unstable 3 Is the plug of power line firmly plugged into the socket Please ensure no loose contact between them J 24 AFTER SALE SERVICE AND WARRANTY WHEN ASKING FOR SERVICE CHECK THE FOLLOWING POINTS N CONDITION CHECK THE FOLLOWING POINTS
53. 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 lt SPX CFH5 gt Please use this number for ordering when you want to renew it e Do not operate the air conditioner without pre filter Dust may enter the air conditioner and fault may occur 21 MAINTENANCE CAUTION Cleaning and maintenance must be carried out when filter lamp lights Before cleaning stop operation and switch off the power supply di 1 PRE FILTER Clean the pre filter as it removes dust inside the room In 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 filter e Gently lift and remove the air purifying filter from the filter frame 2 Vacuum dust from the pre filter and air purifying filler 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 e 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 p
54. y Fan Speed L Operation lamp 3 2 Aa 2 sec gt 17 Thermostat operation Power relay Set H HI 3 MED Operation lamp H Notes ON OFF Switch 4 L LO M The ON time of the power relay is 3 minutes and the min OFF time Fan Speed L Operation lamp Operation mode No Cooling Sensor dehumidification Circulation Control function Set circulation velocity Low sleep operation N Set temperature 2 deg Timer reservation l i Sleep mode Sleepmode 1 Operation 5 The temperature Orson W D l l l Dl l l l l i E after sleep shift in sensor dehumidification operation is limited by 16 Notes 60 minutes after the sleep key is switched on sleep operation is started e When the sleep key is switched on during OFF timer operation the OFF timer will be canceled The sleep operation is started when the sleep key is ON after timer reservation The operation is switched OFF at the set time 39 NICE TEMPERA TURE reservation e Operation starts in advance so that the room temperature reaches the preset value at 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 2 Moved up time depending on the

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