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42NQ018N / 38NY018N

SERVICE MANUAL

AIR CONDITIONER

SPLIT WALL TYPE

FILE NO. SVM-10035-1

Revised Apr, 2010

Содержание 38NY018N

Страница 1: ...42NQ018N 38NY018N SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE FILE NO SVM 10035 1 Revised Apr 2010...

Страница 2: ...ROL BLOCK DIAGRAM 7 OPERATION DESCRIPTION 7 2 Outline of Air Conditioner Control 7 3 Description of Operation Circuit 7 4 Description of Safety and Reliability Prevention Function 7 5 ECO Operation 7...

Страница 3: ...Troubleshooting Procedure 9 2 Basic Check Items 9 3 Primary Judgement 9 4 Self Diagnosis by Remote Control Check Code 9 6 9 7 Troubleshooting for P C Board 9 8 Troubleshooting for Remote Control 10 1...

Страница 4: ...utput W Air filter OUTDOOR UNIT Dimensions Height mm Width mm Depth mm Net weight kg Condenser type Outdoor fan type Airflow volume m3 h Fan motor output W Compressor Model Output W Safety device Louv...

Страница 5: ...ccording to the table below Refrigerant 1 No need to charge 15 m or less extra refrigerant 2 Need to charge Over 15 m up to 20 m 20 g m extra refrigerant Temperature Condition JIS C9612 Cooling Indoor...

Страница 6: ...on plate outline For stud bold For stud bold Outline of indoor unit 786 Knock out system 73 5 50 228 7 73 5 7 Front Panel Grille Inlet Knock out system 50 Air filter Heat exchanger Air inlet Air outle...

Страница 7: ...le 28 320 86 A 125 108 600 or more Air out let 320 600 Air inlet 4x 11 Long holes For 8 10 anchor bolt Gas side Flare 12 70 Liquid side Flare 6 35 90 600 90 69 342 320 Z 50 36 R15 B Detail Drawing Fro...

Страница 8: ...T1 6 T3 PNK WHI BLK WHI BLK BLK COIL FOR 4 WAY VALVE RED RED RED CAPACITOR CAPACITOR BLK BLK WHI RED CN01 CN05 GRY 1 3 5 7 9 1 3 5 7 9 BLK BLK RED RED 1 1 3 3 1 1 3 3 2 CN11 BLU YEL 1 3 1 3 1 1 3 CN02...

Страница 9: ...K1R8 1 8 5 W 12 Louver motor MP24Z3T 12VDC W W W 4 2 Outdoor Unit Output Rated 1500W 2poles 1 phase 220 240V 50Hz 1 Compressor PA200X2CS 4KU1 Winding resistance Red Black White Black at 20 C 1 85 2 62...

Страница 10: ...Connecting pipe T1 P Refrigerant R410A 1 53 kg 12 7 6 35 Ambient temp conditions DB WB C Indoor Outdoor Standard 2 53 42 0 High 20 15 7 6 Heating Overload 1 3 30 3 65 51 0 55 0 Low 27 24 18 Low temper...

Страница 11: ...Processing Timer Serial Signal Communication Louver ON OFF Signal Louver Driver Serial Signal Transmitter Receiver Serial Signal Communication Operation Display Timer Display Filter Sign Display PRE D...

Страница 12: ...al emitter ON OFF 1 Start Stop button 2 Mode select button 3 Temperature button 4 Fan speed button 5 Swing louver button 6 Set louver button 7 On timer button 8 Off timer button 9 Sleep timer button 1...

Страница 13: ...e desired OFF timer Press Set the timer Press Set the timer Press Cancel the timer Press Press Set the ON timer Press Press Set the OFF timer Press button during the or mark flashing 1 1 2 3 2 3 3 4 D...

Страница 14: ...seconds to set the operation 3 beep sound and OPERATION lamp blink 5 time sec for 5 secpmds Do not operate ON timer and OFF timer 2 Press and hold the RESET button on the indoor unit for 3 seconds to...

Страница 15: ...The current time is always indicated except during TIMER operation 7 Hi POWER indicator Indicates when the Hi POWER operation starts Press the Hi POWER button to start and press it again to stop the...

Страница 16: ...ion commands from the indoor unit and operates the outdoor fan motor and the compressor 1 Role of indoor unit controller The indoor unit controller receives the operation commands from the remote cont...

Страница 17: ...w 7 3 2 Cooling operation MODE button on the remote control is set to the cooling operation 1 The compressor 4 way valve outdoor fan and operation display lamp are controlled as shown in Fig 7 3 2 Fig...

Страница 18: ...ng off the indoor fan motor operates in the SUPER LOW position The pattern of operation depending on the relation between room temperature and preset temperatures is shown in Fig 7 3 5 Fig 7 3 5 3 FAN...

Страница 19: ...only operation No limitation while fan speed MANUAL mode is in stability A When Tsc 24 A is 24 and when Tsc 24 A is Tsc Tsc Set value Normal AUTO Line approximate H and SL with Tc Stop 46 Tc 34 45 33...

Страница 20: ...ed temperature the outdoor unit starts the defrosting operation At this time the 4 way valve relay and the outdoor fan motor are turned off The indoor fan motor is also turned off by the cold draft pr...

Страница 21: ...of the preset temperature on the remote control does not change The indoor unit operates in normal heating mode except the preset temperature is higher 2 C 4 The Hi POWER mode can not be set in Dry or...

Страница 22: ...Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidental...

Страница 23: ...red to operate at this time press RESET button once more or use the remote controller to turn it on 7 8 2 How to Cancel the Auto Restart Function To cancel auto restart function proceed as follows Rep...

Страница 24: ...ge can result if the unit falls Before doing the electrical work attach an approved plug to the power supply cord Also make sure the equipment is properly earthed Appliance shall be installed in accor...

Страница 25: ...lutely sure that the installation of this appliance is reported to the local power supplier before installation If you experience any problems or if the installation is not accepted by the supplier th...

Страница 26: ...e control Remote control holder 4 Hook 170 mm or more 50 mm or more 170 mm or more 1 Installation plate Hook Before installing the wireless remote controller Loading Batteries 1 Remove the battery cov...

Страница 27: ...h 1 One each Parts name Refrigerant piping Liquid side 6 35 mm Gas side 12 7 mm Pipe insulating material polyethylene foam 8 mm thick Putty PVC tapes Secure the outdoor unit with fixing bolts and nuts...

Страница 28: ...Part name Q ty Remote control holder x 1 Active carbon cleaning filter x 4 Part No 4 5 6 Part No Others Name Owner s manual Installation manual The part marked with asterisk is packaged with the outd...

Страница 29: ...diameter has been changed In order to increase pressure resisting strength hose materials and port size have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confi...

Страница 30: ...sturbances or noise interference The location of the remote controller should be determined as shown below 8 4 2 Drilling a Hole and Mounting Instal lation Plate Drilling a hole When install the refri...

Страница 31: ...hich discon nects all poles and has a contact separa tion of at least 3 mm must be incorporated in the fixed wiring An approved circuit breaker or switch must be used 2 Connection with power supply pl...

Страница 32: ...t panel slit Cut out the slit on the left or right side of the front panel for the left or right connection and the slit on the bottom left or side of thefront panel for the bottom left or right conne...

Страница 33: ...the bending radius of each connection pipe Fig 8 4 15 NOTE If the pipe is incorrectly bent the indoor unit may be unstable on the wall After passing the connecting pipe through the pipe hole connect...

Страница 34: ...m that it is firmly hooked on the installation plate For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing the bottom up at the specified places Fig 8...

Страница 35: ...secure the normal fan operation using a duct or a wind shield 3 Especially in windy areas install the unit to prevent the admission of wind 4 Installation in the following places may result in troubl...

Страница 36: ...Hg 5 Close the low pressure side valve handle of gauge manifold 6 Open fully the valve stem of the packed valves both side of Gas and Liquid 7 Remove the charging hose from the service port 8 Securely...

Страница 37: ...rigerant 18 Class No refrigerant Less than 15 m 50 Hz 220 240V Single phase Power source Maximum 16A running current Plug socket 20A fuse rating Power cord 4 mm2 H07RN F or 60245 IEC66 or 3 5 mm2 AWG...

Страница 38: ...to change the selector switches Remote control A or B Selection When two indoor units are installed in the same room or adjacent two rooms if operating a unit two units may receive the remote control...

Страница 39: ...is indicated when the Heating operation starts 6 The outdoor fan motor stops in the Heating operation 7 The compressor is not turned on even though the room temperature is in the range that the compr...

Страница 40: ...mp is blinking 5Hz F OPERATION and TIMER lamps are blinking 5Hz G OPERATION TIMER and PRE DEF or FAN ONLY for cooling only model lamps are blinking Table 9 3 2 Diagnosis by detective operation The rem...

Страница 41: ...splay All indicators on the indoor unit will flash 5 times per 1 sec 1 2 3 Fig 9 4 1 9 4 Self Diagnosis by Remote Controller Check Code 1 If the lamps are indicated as shown B to E in Table 9 3 1 exec...

Страница 42: ...eck P C board 1 Check heat thermal fuse is blow or not Terminal block part 2 If the thermal fuse is not blow check indoor fan motor Refer to trouble shooting flow charts Replace P C borad 1 Check conn...

Страница 43: ...ve YES YES YES YES YES NO NO NO NO Does the thermal fuse blow Under PF Terminal Wrong wiring of AC cord or connecting cable is defective Replace the thermal fuse set Check connection Is the indication...

Страница 44: ...rd Checking Procedure Connect the AC Power supply Does the OPERATION lamp blink Is it wired as shown in Figure below Return the wiring of the power relay is returned to the normal procedure To the par...

Страница 45: ...sible to detect the power supply voltage 200 240 V between 1 and 2 on the terminal block 2 Does the indoor fan motor operate in cooling operation In heating operation the indoor fan motor does not ope...

Страница 46: ...C 70 100V outdoor P C board CN06 of transformer 9 5 4 Compressor does not operate Primary check 1 Is the preset temperature higher than the room temperature in cooling operation 2 Is the crossover cab...

Страница 47: ...compressor motor winding normal Check winding resistor Is gas quantity normal Check gas pressure Is capacitor for compressor normal Is overload relay normal Does compressor start Does compressor stop...

Страница 48: ...onfirmation procedure Select one of 3 cases below and follow the procedure 1 The outdoor unit stops between 10 and 20 minutes passed after starting and it takes 10 minutes or more to restart the unit...

Страница 49: ...ble 9 7 1 Inspection procedure No Procedure Check points Causes Impluse voltage was applied or the indoor fan motor short circuited 1 The terminal block or the crossover cable is connected wrongly 2 T...

Страница 50: ...the above codition No Procedure Check points Causes 1 The temperature of the indoor heat exchanger is extremely high 2 The connector of the heat exchanger sensor short circuited CN01 3 The heat excha...

Страница 51: ...l is defective Does indoor unit start to operate by automatic restart function Does radio sound is affected by remote control when a signal is transmitted at distance of 5 cm from radio P C board is d...

Страница 52: ...hed they may ignite any oil mixed with the refrigerant gas 2 Do not use welding equipment in an airtight room Carbon monoxide poisoning may result if the room is not properly ventilated 3 Do not bring...

Страница 53: ...cs 6 Take off four hooks of panel from rear side How to assemble the front panel 1 Press three center positions and two lower center positions of the air outlet and then hang the hanging hooks 4 pcs a...

Страница 54: ...ds once at the bottom 4 Disengage the display unit by simply pushing at the top of the display unit 5 Remove the fixing screw that secures the conduit mount electric parts box assembly LED assembly an...

Страница 55: ...her shafts while sliding the horizontal louver leftward Evaporator Heat exchanger 1 Follow to the procedure in the item 2 Remove the pipe holder from the rear side of the main unit Figure 1 3 Remove t...

Страница 56: ...out from the housing push it into the specified position and then incorporate it in the main body Two screws Bearing Bearing base Two screws Bearing Bearing base FILE NO SVM 10035 One screw One screw...

Страница 57: ...w of the cross flow fan 3 Remove two fixing screws of the motor cover and them remove the motor cover 4 Remove two more fixing screws of the motor band and remove the motor band Remarks 5 Pull the fan...

Страница 58: ...main unit Holding the set screw install the cross flow fan so that flat area on shaft of the fan motor comes to the mounting hole of the set screw q FILE NO SVM 10035 Perform positioning of the fan m...

Страница 59: ...ck and 1 ground screw on the electrical parts base 1 Common procedure No Part name Procedures Remarks Front cabinet 2 Remove the packed valve cover and the electrical parts cover 2 screws 4 x 10L 4 Re...

Страница 60: ...inal 1 Perform the common procedure 1 2 Remove the fixing screw 2 screws 4 x 18L 3 Disconnect the lead wires from the terminal 1 Perform the common procedure 1 2 Remove the fixing screw 1 screws 4 x 1...

Страница 61: ...0331 TERMINAL 3P 407 43T62003 CORD CLAMP Made in Thailand 403 43T50004 SENSOR HEAT EXCHANGER 411 43T69845 ASM PCB SERVE 404 43T69005 SENSOR THERMOSTAT 414 43T69747 ASM STEPPING MOTOR 405 43T69736 PC B...

Страница 62: ...43T09040 LOUVER HORIZONTAL Made in Thailand 216 43T19333 HOLDER SENSOR Made in Japan 206 43T70313 HOSE DRAIN Made in Thailand 217 43T49010 PIPE SHIELD Made in Thailand 207 43T79313 CAP DRAIN Made in M...

Страница 63: ...ERMINAL BLOCK 5P 11 43T47331 BONNET 6 35 DIA Made in Thailand 35 43T19331 FIN GUARD Made in Thailand 12 43T47333 BONNET 12 70 DIA Made in Thailand 36 43T00456 UPPER FRONT CABINET A 13 43T47013 CAPILLA...

Страница 64: ...64 FILE NO SVM 03012...

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