background image

 

54

 

(3) Checking procedure

Table 9-6-1

No.

1

2

3

4

5

6

7

Procedure

1.

Application of shock voltage.

Overload by short-circuit of the
parts.

1.

AC power cord is defective.

Poor contact of the terminal plate.

Miss wiring of the power relay.

2.

Capacitor (C01, C02) is defective.

Line filter (L01) is defective.

Resistor (R01) is defective.

Diode (DB01) is defective.

3. M01, DB01, R01, C03 are 

4. IC01 are defective.

defective.

defective relay driver. (Q07)

2. Poor contact of relay.

Defective indicator, or poor
housing assembly. (CN14)

1. The temperature of the indoor

heat exchanger is abnomally lower.

2. Poor contact of the heat

exchanger sensor. (The connector
is disconnected.) (CN01)

3. Heat exchanger sensor, main P.C.

board are defective. (Refer to
Table 9-6-2 for the judgment of
defective resistance values.)

4. Main P.C. board is defective.

1. The temperature of the heat

exchanger is abnormally high.

2. The heat exchanger sensor

connector has short-circuit. (CN01)

3. The heat exchanger sensor is

defective. (Refer to Table 9-6-2
for the judgment of defective
resistance values.)

4. P.C. board is defective.

1. Poor contact of the motor

connector.

2. P.C. board is defective.

1. Is the fuse blown?

Voltage check
1. Between 

 

TP1

  and  

N

(AC 220

240V)

2. B and 

 of C03

(DC 310 ~ 340V)

3. Between 

12V 

and 

GND

4. Between

5V

and

GND

Voltage check
1. Voltage of relay coil. (DC 12V)

Between pin 2 of RY01 and 

  GND

2. Between No. 1 and 2 of connect-

ing cable terminal block.
(AC 220

240V)

1. All indicators light for 3 sec..
2. Indicators do not indicate normally

after approximate 3 sec..

1. Compressor does not operate.
2. OPERATION lamp blinks.

1. Compressor does not operate.
2. OPERATION lamp blinks.

1. Motor does not rotate. (The key

operation is accepted.)

2. The Motor rotates, but it vibrates

too much.

Shut off the power supply and
remove the P.C. board assembly
from the electronic parts base.
Remove the connecting cable from
the terminal block.

Remove the connector for the motor,
and turn the power on.
If the OPERATION lamp blinks
(0.5 sec. : ON, 0.5 sec. : OFF) when
the power turning on, the checking
points described as 1-4 of right
column are not necessary to
perform.

Make the operation status by
pushing once the [    ]
button, except the status of [FAN
ONLY], [ON TIMER].

Start the operation with the system
which the time of the restart delay
timer is shortened.

Make the operation status by
pressing once the [    ]
button.
1. The time of the restart delay timer

is shortened.

2. Cool operation
3. Air volume [AUTO]
4. Make the setting temperature lower

enough than room temperature.

5. Continuous operation.

The status of No. 5 is continued, and
make the following condition.
1. Heat operation
2. Make the setting temperature

higher enough than room
temperature.

Turn the power on after connecting
the motor connector. Start the
operation with the following
condition.
1. Operation [Cooling]
2. Airflow [High fan]
3. Continuous operation

Check Point (Symptom)

Causes

}

FILE NO. SVM-10031

1.

Summary of Contents for 38NY012N

Page 1: ...FILE NO SVM 10031 42NQ012N 38NY012N SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE April 2010 ...

Page 2: ... Control 7 3 Description of Operation Mode 7 4 Description of Safety and Reliability Prevention Function 9 8 1 Safety Cautions 8 2 Installation Diagram of Indoor and Outdoor Units 8 3 Installation 8 4 Indoor Unit 7 7 FILTER check lamp 7 8 Auto Restart Function INSTALLATION PROCEDURE 8 5 Outdoor Unit 8 6 Others TROUBLESHOOTING CHART 9 1 Troubleshooting Procedure 9 2 Basic Check Items 9 3 Primary Ju...

Page 3: ...031 10 PARTS REPLACE THE MAIN PARTS 11 1 Indoor Unit 11 2 Microcomputer 11 3 Outdoor Unit 11 EXPLODED VIEWS AND PARTS LIST 11 1 Indoor Unit E Parts Assy 11 2 Indoor Unit 11 4 Outdoor Unit E Parts Assy 11 3 Outdoor Unit ...

Page 4: ... length 15 1 One way Maximum height difference INDOOR UNIT Height mm 275 Dimensions Width mm 790 Depth mm 205 Net weight kg 9 Evaporator type Finned tube Indoor fan type Cross flow fan High fan m3 h 600 620 Airflow volume Medium fan m3 h 430 520 Low fan m3 h 380 400 Fan motor output W 20 Air filter Active Carbon Cleaning filter OUTDOOR UNIT 38NY012N Height mm 550 Dimensions Width mm 780 Depth mm 2...

Page 5: ...perature conditions Note 2 Temperature Condition Cooling Heating Indoor unit inlet air temperature DB 27 C 20 C WB 19 C 15 C Outdoor unit inlet air temperature DB 35 C 7 C WB 24 C 6 C 1 No need to charge extra refrigerant FILE NO SVM 10031 JIS C9612 ...

Page 6: ...Connecting pipe 0 40m Installation plate hanger Flare 12 70mm 116 170 or more 170 or more 65 or more Minimum distance to wall Minimum distance to wall Minimum distance to ceiling FILE NO SVM 10031 2 1 Indoor Unit 65 51 65 51 205 65 68 48 6 Heat exchanger Air inlet Front panel Knock out system Knock out system Air filter 790 275 2 CONSTRUCTION VIEWS 5 Wireless remote controller 56 19 157 26 125 63 ...

Page 7: ...35 Ø Ø Gas side Flare 12 7 Service port 4x 11 Long holes For 8 10 anchor bolt Air outlel 100 or more 100 or more 600 or more 600 or more Air intlel Ø Ø6 hole 86 Ø6 hole Ø11x14 hole R15 28 A 320 R5 5 36 108 125 50 129 84 5 4 600 320 290 550 Z R15 50 36 2 320 342 Ø Ø Ø 2 2 Outdoor Unit FILE NO SVM 10031 6 For 8 10 anchor bolt FAN GUARD Ø Ø 90 600 90 Ø 436 69 275 ...

Page 8: ...TOR BLU 3 1 4 L 2 N BLU BLK CAPACITOR SOLENOID COIL WHI BLU BLK CAPACITOR BLU 3 1 4 L 2 N BLU CAPACITOR SOLENOID COIL FAN BLU CAPACITOR BLU 3 1 4 L 2 N BLU MOTOR CAPACITOR WHI FAN CAPACITOR BLU 3 1 4 L 2 N BLU MOTOR WHI 3 1 3 4 1 L 4 2 L N 2 BLU N RED BLU RED RED RED CHASSIS OUTDOOR TERMINAL BLOCK OUTDOOR ...

Page 9: ...for 4 way valve model STF 01AJ503H1 GPS 9W AA DC370V Secondary DC13V 202N 1AC C E No C240 Parts name Type Specifications 1 Fan motor for indoor AFN 220 20 4D AC Motor with 145 C thermo fuse 2 Thermo sensor TA sensor 10k at 25 C 3 Power Module M01 4 Microcontroller unit IC30 TMP87CM40ANG 6P68 5 Heat exchanger sensor 10k at 25 C TC sensor 6 Line filter L01 LC SS11V R06270 27mH 600mA 7 Bridge diode D...

Page 10: ...igh 27 19 35 24 Cooling Overload 1 26 14 6 High 32 23 43 26 Low temperature 0 77 1 5 Low 21 15 21 15 Standar d pressure P MPaG Surface temp of heat exchang er inter changing pipe T1 C Fan speed indoor 50Hz Heat exchanger Indoor unit Cross flow fan Cooling Heating 4 way valve Heating Cooling Compressor Accumulator Heat exchanger Propeller fan Outdoor unit Capillary tube 1 2x500l Capillary tube 1 5x...

Page 11: ...04 220 240 V 50Hz Compressor 4 Way Valve Outdoor Fan Motor Louver Control 3 minutes Delay at Restart for Compressor Processing Temperature Processing Motor Revolution Control Timer Initiallizing Circuit Clock Frequency Oscillator Circuit Thermo Sensor Current Sensor Compressor Current Infrared Rays Signal Reciver REMOTE CONTROL Remote Control Operation Mode Selection AUTO COOL DRY HEAT FAN ONLY Te...

Page 12: ...ET SLEEP CHECK FILTER CLECK Infrared signal 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 10 Setup button 11 Clear button 12 Memory and Preset button 13 High power button 14 Economy button 15 Filter reset button 16 Clock reset button 17 Check button ...

Page 13: ...ress 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 Daily timer allows the user to set both the ON OFF timers and will be activated on a daily basis Setting Daily Timer During the Daily timer is activation both arrows are indicated or ON OFF Cancel the timer ON OFF 8 PRESET...

Page 14: ...3 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 cancel the Setting operation 3 beep sound but OPERATION lamp does not blink 10 SLEEP TIMER OPERATION To start the sleep timer OFF timer operation Press Select 1 3 5 or 9 hrs for OFF timer operation ...

Page 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 operation 8 PRESET indicator Flashes for 3 seconds when the PRESET button is pressed during operation The mark is shown when holding down the button for more than 3 seconds while the mark is blinks Pr...

Page 16: ...ressor 1 Role of indoor unit controller The indoor unit controller receives the operation commands from the remote control and executes them Temperature measurement at the air inlet of the indoor heat exchanger by the indoor temperature sensor Temperature measurement of the indoor heat exchanger by the heat exchanger sensor Louver motor control Indoor fan motor operation control LED display contro...

Page 17: ...peration 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 7 3 2 2 When FAN button is set to AUTO the indoor fan motor operates as shown in Fig 7 3 3 When FAN button is set to LOW LOW MED MED or HIGH the motor operates with a constant air flow 1 2 3 3 2 5 2 1 5 1 0 5 0 5 0 M...

Page 18: ...FF ON OFF 4 way valve Outdoor fan OPERATION Compressor ON 6min OFF 4min ON 5min OFF 5min OFF ON 6min OFF 4min ON 5min OFF 5min display lamp Room temp Preset temp Room temp Preset temp 1 Preset temp Compressor Outdoor fan Indoor fan L S L S L L L S L L ON ON ON ON OFF OFF OFF Super Low FAN AUTO 0 5 1 1 5 2 1 2 5 0 5 5 0 Preset temp M H L C Room temp Preset temp C 2 Fan speed M L x 2 4 L 1 Fan speed...

Page 19: ...n 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 H Line approximate H and SUL with Tc SUL Stop 46 46 Tc 34 45 45 33 33 33 21 32 32 20 A 4 A 4 A 4 A 4 A 4 A 4 Fan speed MANUAL in starting Fan speed AUTO in stability Fan speed AUTO in starting Fig 7 3 9 Cold draft preventing control Table 7 3 8 Fan 5 6 speed Starting period Stabilized period ...

Page 20: ...he defrost operation to melt ice Condition to start the defrost operation The defrost operation starts whichever below conditions are satisfied 1 When the cumulative compressor operating time is longer than 40 or 90 minutes and difference between the indoor heat exchanger temperature and the room temperature is less than the specified value This value is decided by the microprocessor Control examp...

Page 21: ...d the heating operation restarts The current sensor detects the compressor current 2 The defrost operation continues for at most 6 minutes or 10 minutes FILE NO SVM 10031 20 DEFROST LAMP During defrost operation the PRE DEF lamp is on and the indoor and outdoor fans are off The compressor start protection timer is inter looked with the PRE DEF lamp So the PRE DEF Lamp is off the fans stop for abou...

Page 22: ... C T Fig 7 4 5 2 Current limit control Heating operation Control is performed as shown in Fig 7 4 6 Fig 7 4 6 Remark 1 This function is available only for heat pump model Cooling models have no a current sensor C T Input current 11 0A I4 10 0A I3 6 1A I2 5 1A I1 Compressor Outdoor fan More than I4 continues for 3 seconds OFF More than I3 continues for 5 minutes OFF ON ON OFF Input current 11 0A I4...

Page 23: ...ote 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 Fan only operation The indoor unit s fan speed level increase 1 tap The indoor unit s fan speed level increase 1 tap 7 6 ECO Operation Cooling operation The preset temperature will increase 1ºC after the ECO mode has operated for 1 hou...

Page 24: ...tart 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 accidentally shut down The operation will resume without warning three minutes after power is restored This function is not set to work when shipped from the factory Therefore it is necessary to set it to ...

Page 25: ...quired 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 Repeat the setting procedure the unit receives the signal and beeps three times The unit will be required to be turned on with the remote controller after the main power supply is turned off When the ...

Page 26: ...fferent size tools are also required Accordingly special tools are required for the new refrigerant R410A as shown below For connecting pipes use new and clean piping materials with high pressure withstand capabilities designed for R410A only and ensure that water or dust does not enter Moreover do not use any existing piping as its pressure withstand may be insufficient and may contain impurities...

Page 27: ... INSTALLATION WORK IMMEDIATELY LET FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOMETHING ELSE IT CAUSES GENERATION OF POISONOUS GAS WARNING Never modify this unit by removing any of the safety guards or bypassing any of the safety interlock switches Do not install in a place which cannot bear the weight of the unit Personal injury and property damage can result if the unit ...

Page 28: ...ary piping can be connected to the left rear left rear right right bottom right or bottom left Right Rear right Bottom right Rear left Bottom left Left 6 mm thick heat resisting polyethylene foam 1 Shield pipe Attach to the front panel Air filter Hook Installation plate Hook 65 mm or more 170 mm or more 170 mm or more Insulate the refrigerant pipes separately with insulation not together Before in...

Page 29: ...m anchor bolts and nuts If it is necessary to drain the defrost water attach drain nipple bottom plate of the outdoor unit before installing it Parts name Refrigerant piping Liquid side 6 35 mm Gas side 12 70 mm Pipe insulating material polyethylene foam 6 mm thick Putty PVC tapes Part Code A B C Q ty One each 1 One each 8 Drain outlet Air outlet Air inlet 600 mm 90 mm 125 mm 108 mm 28 mm 86 mm 10...

Page 30: ...manual Installation manual 8 3 2 Accessory and installation parts The part marked with asterisk is packaged with the outdoor unit 3 1 x 16 x 2 l Pan head wood screw Drain nipple x 1 Part name Q ty Remote control holder x 1 4 l Mounting screw 4 x 25 x 6 Battery x 2 7 5 Active Carbon Cleaning filter x 1 6 No Part Active Carbon Cleaning filter x 1 9 ...

Page 31: ...t 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 confirm the port size As pressure is hight and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur The size of opposite sides of flare...

Page 32: ... exposed to direct sunlight or close to a heating source such as a stove Keep the remote control at least 1 m apart from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interference The location of the remote control should be determined as shown below Fig 8 4 1 8 4 2 Cutting a hole and mounting installation plate Cutting a hole When installing the r...

Page 33: ...nditioner 2 Prepare the power source for exclusive use with the air conditioner NOTE Wire type More than H07RN F or 245 IEC66 1 0 mm2 or more CAUTION This appliance can be connected to the mains in either of the following two ways 1 Connection to fixed wiring A switch or circuit breake which disconnects all poles and has a contact separation of at least 3 mm must be incorporate in the fixed wiring...

Page 34: ... so that it protrudes about 15 cm from the front 5 Insert the connecting cable fully into the terminal block and secure it tightly with screws 6 Tightening torque 1 2 N m 0 12 kgf m 7 Secure the connecting cable with the cord clamp 8 Fix the terminal cover rear plate bushing and air inlet grille on the indoor unit CAUTION Be sure to refer to the wiring system diagram labeled inside the front panel...

Page 35: ...The drain hose can be removed by removing the screw securing the drain hose and then pulling out the drain hose When removing the drain hose be careful of any sharp edges of steel plate The edges can injuries To install the drain hose insert the drain hose firmly until the connection part contacts with heat insulator and the secure it with original screw How to fix the Drains Cap 1 Insert hexagona...

Page 36: ...hine trouble make sure to insulate both the connecting pipes Use polyethylene foam as insulating material When bending a pipe carefully do it not to crush it To the forefront of flare Liquid side Outward form of indoor unit R 30 mm or less 6 35 R 40 mm or less 9 52 Use polisin polyethylene core or the like for bending pipe Use the handle of screwdriver etc Gas side 270 mm 230 mm 43 mm 80 Auxiliary...

Page 37: ...where the operation noise and discharged air do not disturb neighbors A place which is not exposed to a strong wind A place free of combustible gases A place which does not block a passage When the outdoor unit is to be installed in an elevated position be sure to secure its feet An allowable length of the connecing pipe is up to 15 m An allowable height level is up to 6 m CAUTION 1 Install the ou...

Page 38: ...Tightening Connection Align the centers of the connecting pipes and tighten the flare nut as much as possible with your fingers Then tighten the nut with a wrench and torque wrench as shown in the figure CAUTION Do not apply excessive force Tightening torque for connection of flare pipe The pressure of R410A is higher than R22 Approx 1 6 times Therefore securely tighten the flare pipes which conne...

Page 39: ...K 1 Take away dust and moisture inside of the connecting pipes 2 Tighten the connections between pipes and unit 3 Evacuate the air in the connecting pipes using a VACUUM PUMP 4 Check gas leaks connected points Packed valve at liquid side Service port Valve core Setting pin Packed valve at gas side Vacuum pump Vacuum pump adapter for counter flow prevention For R410A only Charge hose For R410A only...

Page 40: ...ay receive the remote control signal simultaneously and operate In this case the operation can be preserved by setting either one remote control to B setting Both are set to A setting in factory shipment The remote control signal is not received when the settings of indoor unit and remote control are different There is no relation between A setting B setting and A room B room when connecting the p...

Page 41: ...cribed in the section Auto Restart Function of the Owner s Manual FILE NO SVM 10031 Fig 8 6 1 8 6 3 Auto Restart Setting This product is designed so that after a power failure it can restart automatically in the same operating mode as before the power failure Check the flare nut connections for gas leaks with a gas leak detector and or soapy water 8 6 2 Test Operation Electric parts cover Check pl...

Page 42: ...p 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 compressor is turned on 8 The operation mode changes in the Automatic operation 9 The Fan only operation continues in the Automatic operation No Operation of air conditioner Descriptions The OPERATION lam...

Page 43: ...amp 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 remote control does not work The outdoor fan does not rotate Turn off the power supply once then turn it on Try to operate the remote control The compressor operates The compressor does not operate The ...

Page 44: ...ay All indicators on the indoor unit will flash 5 times per 1 sec 1 2 3 4 Fig 9 4 1 9 4 Self Diagnosis by Remote Controller Check Code 1 If the lamps are indicated as shown B to G in Table 9 3 1 execute the self diagnosis by the remote controller 2 When the remote controller is set to the service mode the indoor controller diagnoses the operation condi tion and indicates the information of the sel...

Page 45: ...heck 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 connective cable correct if wiring is wrong 2 Check thermal fuse and Terminal blocks 3 If it is OK check P C board 1 If overload relay and themostat for compres sor are OK check refrigerant cycle 2 If re...

Page 46: ...e 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 voltage DC12V or 5V of main P C board correct Does the CN14 connector the wrong connecting P C board is defective Replace the main P C board Is the voltage across C03 measured DC310V 340V Refer to the...

Page 47: ...ard 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 paragraph of No Power turns on YES NO NO YES FILE NO SVM 10031 46 ...

Page 48: ...YES YES YES YES Does the power turn on by pushing the button of the remote control Is AC 220 240V supplied between terminal block 1 2 Relays RY01 or Q07 or IC30 is failure Replace the P C board Is cable connection between indoor and outdoor units correct Correct cabling between indoor and outdoor units Does the OPERATION lamp blink See Power can not be turned on 9 5 3 Outdoor unit does not operate...

Page 49: ...Correct cabling between indoor and outdoor units Is the voltage across the outdoor terminal 1 2 AC 220 240V Cables between indoor and outdoor units are defective Are all the cords for compressor normal Re wire or replace the defective cords Is the compressor motor winding normal Check the winding resistor Compressor is defective Is the capacitor for compressor normal Capacitor is defective Is the ...

Page 50: ...RY03 or Q09 or IC30 is failure Replace the P C board Is cable connection between indoor and outdoor units correct Correct cabling between indoor and outdoor units Is the voltage across the terminal 2 4 Heat pump model 1 2 Cooling only model AC 220 240V Cables between indoor and outdoor units are defective Are all the cords for outdoor fan motor normal Correct the wire or replace the defective cord...

Page 51: ... the voltage across the indoor terminal 2 3 220 240V Relays RY04 or Q08 R34 or IC30 is failure Replace the P C board Is cable connection between indoor and outdoor units correct Correct cabling between indoor and outdoor units Is the voltage across the outdoor terminal 2 3 220 240V Cables between indoor and outddor units are defective Is the wiring of solenoid coil for 4 way valve normal Solenoid ...

Page 52: ...he short wire about connecting cable and power cord Change the setting of cooling to high fan Does the cross flow fan rotate normally Repair the bearing of the fan Shut off the power supply Turn on the power supply Does the fan speed become higher Operation stops Motor control circuit failure IC30 IC03 Q01 R20 or 12V power circuit failure Replace the P C board Is the rotation signal DC 5V 0V outpu...

Page 53: ...ny signal tone be heard in a transistor radio when transmitting within 5 cm distance from the radio P C board is failure Replace P C board Is operation possible when the transmitter is moved nearer to the infrared signal receiver of the air conditioner Battery life Replace the batteries Reset the remote control by take off batteries Dose the transmission indicator light Is there any beep and opera...

Page 54: ...d hold the Whole housing Do not pull at the lead wire 2 Inspection procedres 1 When a P C board is judged to be defective check for disconnection burning or discolora tion of the copper foil pattern or this P C board 2 The P C board consists of the following 2 parts a Main P C board part power relay indoor fan motor drive circuit and control circuit C P U and peripheral circuits buzzer drive circu...

Page 55: ...RY01 and GND 2 Between No 1 and 2 of connect ing cable terminal block AC 220 240V 1 All indicators light for 3 sec 2 Indicators do not indicate normally after approximate 3 sec 1 Compressor does not operate 2 OPERATION lamp blinks 1 Compressor does not operate 2 OPERATION lamp blinks 1 Motor does not rotate The key operation is accepted 2 The Motor rotates but it vibrates too much Shut off the pow...

Page 56: ...kept even if CHK and SET buttons and the timer short mode is waited T pushed in this case the check mode is released empe 2 Push the SET button while keeping CHK button r rate to be applied with the timer short mode ature 4 The timer short mode is released by only a trans mission Therefore repeat steps from 2 to 0 perform the timer short mode again C FILE NO SVM 10031 Resistance v ON OFF 2 1 alue ...

Page 57: ...shed 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 welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspectin...

Page 58: ... screws 2 pcs 6 Take off three 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 3 pcs at the top side of the front panel to the rear plate 2 Tighten two screws Incomplete hanging or incomplete pressing may cause a dewdrops or generation of a fluttering sound 2 Screws Three h...

Page 59: ... parts box assembly onto the claws on the back body Now attach the display unit Connect the connectors for the fan motor and louver motor 2 Secure the grounding wire using the fixing screw Insert the TC sensor into the sensor holder Be absolutely sure to loop the grounding wire and TC sensor leads once at the bottom 5 Disengage the display unit by simply pushing at the top of the display unit 6 Re...

Page 60: ... the pipe holder from the rear side of the main unit 3 Remove two fixing screws at the left side of the end plate of the heat exchanger Remarks 4 Remove one fixing screw on the heat exchage fixing holder to separate the heat exchage from the back body 5 Remove right side of the end plate from two fixing rib while sliding slightly the heat exchanger rightward 2 screws Heat exchanger fixing holder S...

Page 61: ... Remove the two screws used to secure the bearing base 3 Remove the bearing base Caution at assembling If the bearing is out from the housing push it into the specified position and then incorporate it in the main body Remarks Two screws Bearing Bearing base FILE NO SVM 10031 ...

Page 62: ...ove 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 motor outward Set screw Two screws Motor cover Two screws on motor band Part name FILE NO SVM 10031 Reference condition of Fan Motor s assembly ...

Page 63: ...he 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 FILE NO SVM 10031 Perform positioning of the fan motor as follows When assembling the fan motor the fan motor must be installed in such a way that the fan motor leads will be taken out is positioned at the bottom front After assembling the two hooking claws of the motor b...

Page 64: ...it pulling out upward 1 Perform the common procedure 1 2 Remove the fixing screw and the capacitor band 1 Screw 4 x 10L 3 Disconnect the lead wires 1 Perform the common procedure 1 2 Remove the fixing screw and the capacitor band 1 Screw 4 x 10L 3 Disconnect the lead wires 10 2 Outdoor Unit 1 Common procedure 2 Capacitor for compressor 3 Capacitor for fan motor No Part name Procedures Remarks Uppe...

Page 65: ...401 43T60385 TERMINAL BLOCK 2P 405 43T69641 PC BOARD ASSY WRS LED 402 43T60365 TERMINAL BLOCK 3P Made in Thailand 403 43T69004 SENSOR HEAT EXCHANGER 406 43T60077 FUSE TEMPERATURE 73C 404 43T69005 SENSOR THERMOSTAT 407 43T60396 TERMINAL BLOCK 3P 410 43T60003 FUSE 3 15A AC 250V 411 43T69864 ASM PCB SERV Description Description ...

Page 66: ...ROSS FLOW FAN ASSEMBLY 219 43T44453 REFRIGERANT CYCLE ASSEMBLY Made in Thailand 221 43T00510 PANEL SERVICE ASSEMBLY 206 43T49010 PIPE SHIELD Made in Thailand 222 43T80321 AIR FILTER R 207 43T63002 REMOTE CONTROL HOLDER 223 43T80322 AIR FILTER L 208 43T60382 MOTOR CORD Made in Thailand 224 43T09435 GRILLE OF AIR INLET 209 43T82310 INSTALLATION PLATE Made in Thailand 224 43T09435 GRILLE OF AIR INLET...

Page 67: ...RT COVER 9 43T47331 BONNET 6 35 DIA Made in Thailand 26 43T19331 FIN GUARD Made in Thailand 10 43T47333 BONNET 12 70 DIA Made in Thailand 28 43T61308 ELECTRIC PARTS BASE 11 43T47008 CAPILLARY TUBE 1 5 DIA 29 43T55350 MF CAPACITOR 12 43T00468 FRONT CABINET 30 43T55325 CAPACITOR PLASTIC FILM 13 43T00459 LEFT CABINET Made in Thailand 31 43T60373 TERMINAL 4P 14 43T00451 RIGHT CABINET ASSEMBLY 32 43T46...

Page 68: ...FILE NO SVM 03008 87 ...

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