IVT 09LR-N Service Manual Download Page 39

Page: 39 / 64

12LRN

3 – 17

Indoor and
outdoor units
do not oper-
ate.

8-time

    

Timer (Orange)

Abnormal
wire check

Abnormal wire
check error

(1) Check the expansion

valve. (unit A - C)

(1) Replace the out-

door control board
assembly.



Operation (Red)

Plasmacluster
(Blue)

(2) Are four expansion

valves connected by
mistake

(2) Reattach

(3) Check the wiring

between units.

(3) Check the wiring

between units.

Indoor and
outdoor units
do not oper-
ate.

9-time

    

Timer (Orange)

Cycle tem-
perature

Thermisttor
installtion error or
4-way valve
error.

(1) Check the ther-

mistor (heat
exchanger) and (2-
way valve) are
installed in correct
positions.

(1) Correct the instal-

lation.



Operation (Red)

Plasmacluster
(Blue)

(2) Check if the refriger-

ant volume is abnor-
mally low.

(2) Change the speci-

fied amount of
refrigerant.

(3) Check the 4-way

valve for proper
operation.

(3) Replace the 4-way

valve.

(4) No abnormalyty

found in above
inspections (1) thro-
hgh (3).

(4) Replace the out-

door unit control
PCB assembly.

Indoor and
outdoor units
do not oper-
ate.

    

Timer (Orange)

4 way valve error
or Gas leak error

(1) Check the ther-

mistor indoor/out-
door exchange are
installed in correct
portions.

(1) Correct the instal-

lation.



Operation (Red)



Plasmacluster
(Blue)

(2) Check if the refriger-

ant volume is abnor-
mally low.

(2) Change the speci-

fied amount of
refrigerant.

(3) Check the 4-way

valve for proper
operation.

(3) Replace the 4-way

valve.

Indoor and
outdoor units
do not oper-
ate.

10-time

    

Timer (Orange)

EEPROM
error

EEPROM (out-
door) data error

(1) Replace the out-

door unit control
PCB assembly.



Operation (Red)
Plasmacluster
(Blue)

Indoor and
outdoor units
do not oper-
ate.

    

Timer (Orange)

EEPROM (out-
door) data error



Operation (Red)



Plasmacluster
(Blue)

Indoor and
outdoor units
do not oper-
ate.

    

Timer (Orange)

CPU (outdoor)
RAM data error



Operation (Red)



Plasmacluster
(Blue)

Problem

symptom

Outdoor

unit indi-

cation

(LED1)

Indoor unit

Malfunc-

tion No.

Content of diagnosis

Check point

Action

Lamp

Main Sub

Main

Sub

Summary of Contents for 09LR-N

Page 1: ...AND OPERATIONS 3 1 2 AIR TO AIR HEAT PUMP OPERATION IN THERMISTOR ERROR 3 3 3 THERMISTOR TEMPERATURE CHAR ACTERISTICS 3 5 4 HOW TO OPERATE THE OUTDOOR UNIT INDEPENDENTLY 3 6 5 GENERAL TROUBLESHOOTING CHART 3 6 6 MALFUNCTION PARTS CHECK METH OD 3 8 7 OUTDOOR UNIT CHECK METHOD 3 11 8 TROUBLESHOOTING GUIDE 3 14 CHAPTER 4 REFRIGERATION CYCLE 1 FLOW FOW REFRIGERANT 4 1 2 STANDARD CONDITION 4 1 3 TEMPER...

Page 2: ...led rotary type Model 5RS102XBE01 Oil charge RB68A 320cc Refrigerant system Evaporator Louver Fin and Grooved tube type Condenser Corrugate Fin and Grooved tube type Control Expansion valve Refrigerant R410A 1140g De lce system Micro computer controled reversed systems Noise level at cooling High dB A 43 48 Low dB A Soft dB A 27 Fan system Drive Direct drive Air flow quantity at cooling High m3 mi...

Page 3: ...01 Oil charge RB68A 320cc Refrigerant system Evaporator Louver Fin and Grooved tube type Condenser Corrugate Fin and Grooved tube type Control Expansion valve Refrigerant R410A 1140g De lce system Micro computer controled reversed systems Noise level at cooling High dB A 42 45 Low dB A Soft dB A 26 Fan system Drive Direct drive Air flow quantity at cooling High m3 min 9 4 28 3 Low m3 min 7 0 Soft ...

Page 4: ...12LRN 1 3 2 EXTERNAL DIMENSION 1 Indoor unit 2 Outdoor unit 㧔Unit㧦㨙㨙㧕 22 0 58 18 5 175 INVERTER AIR CONDITIONER 770 248 260 760 265 780 540 14 167 5 165 540 299 72 58 37 5 12 4 5 324 135 81 136 ...

Page 5: ...PTION MODEL REMARKS Indoor fan motor MLB469 DC motor Transformer RTRNWA054JBZZ FUSE1 QFS GA078JBZZ 250V 3 15A DESCRIPTION MODEL REMARKS Compressor 5RS102XBE01 DC motor Outdoor fan motor MLB427 DC motor Fu3 QFS GA077JBZZ 250V 2A Fu2 QFS GA078JBZZ 250V 3 15A Fu1 QFS CA001JBZZ 250V 20A Fu5 QFS CA002JBZZ 250V 15A l ...

Page 6: ...o circuit Select circuit Serial I O circuit Auto restart circuit Test run circuit Auxiliary mode Power on circuit Cluster generator drive circuit Indoor fan motor Fan motor pulse detect Wireless remote control operation Audible operation confirmation Room temp thermistor Heat exchanger pipe thermistor Indoor outdoor control signal I O Test run forced operation Auxiliary mode button ON OFF Self dia...

Page 7: ...t CPU reset circuit Position detection circuit AC overcurrent detection circuit Compressor thermo circuit Heat exchanger pipe thermo circuit Outdoor temp thermo circuit LED drive circuit Test mode circuit Power factor converter circuit Filter circuit Smoothing circuit Pulse amplitube modulation circuit AC clock circuit DC overcurrent detection circuit IGBT Unit unit wiring AC power and serial sign...

Page 8: ... 㧹㧻㨀㧻㧾㧰㧯 ޓ 㧲㧭㧺㧯㧺㧟㧡㨂㨟㨂㨏㨏㧼㧳㧳㧺㧰㧣㨂㨙㧠㧚㧣㧷㧾㧝㧞㧜㧚㧜㧝Ǵ 㧯㧝㧜㧡㧜㨂㧞㧚㧣㧷㧾㧝㧡㧾㧝㧠㧡㧢㧷㧽㧞㨀㧴㧝㧠㧟㨀㧴㧞㧝㧞 ቶ ࠨ ࡒࠬ ᾲ ࠨ ࡒࠬ 㧼㧵㧼㧱 ޓ 㨀㧱㧹㧼㧾㧻㧻㧹 ޓ 㨀㧱㧹㧼㨀㧴㧱㧾㧹㧵㧿㨀㧻㧾㨀㧴㧱㧾㧹㧵㧿㨀㧻㧾㧮㧸㧶㧼㧞㧽㧥㧡㨂 ࡄࡢ 㧻㧺㧝㧜㧜㧷㧾㧣㧡㧝㧞㧟㧠㧾㧥㧝㧯㧥㧜㧾㧥㧞㧾㧥㧜㧴㧭㧶㧼㧯㧺㧥㧜㧤㧹㧴㨦㧻㧿㧯㧝㧜㧚㧝Ǵ 㧡㧜㨂㧯㧟㧞㧵㧯㧠㧽㧝㧜㧠㧾㧝㧜㧤 ޓ 㧝㧛㧠㨃 ޓ 㧢㧚㧤㧷㧾㧝㧜㧥 ޓ 㧝㧛㧠㨃 ޓ 㧢㧚㧤㧷㧡㧜㨂㧰㧝㧺㧢㧜㧰㧟㧞㨃㧾㧝㧟㧟㧚㧟㧷㧠㧟㧞㧝㨀㧾㧝㧝㧞㨂㧞㧝㧡㧢㧤㧥㧝㧜㧝㧝㧣㧝㧞㧝㧥㨂㧾㧮㧝㧢㧜㧹㧙㧢㧜㧰㧝㧞㧾㧝㧜㧞㨃㧝㧝㧷㧝㧝㧷㧾㧥㧞㨃㧰㧝㧺㧢㧜...

Page 9: ... model main PWB From louver motor From display PWB From thermistor PDAI A248JBWZ From Plasma Cluster generator To Terminal board 2 From Fan motor To Terminal board 1 To Terminal board N To Eauth Terminal For 9LRN LRN model display PWB To Main PWB CN5 ...

Page 10: ...㧡㨂㧞㧡㨂㧽㧡㧠㧟㧞㧝㧾㧝㧝㧜㧝㧡㧜㧝㧷㧾㧝㧝㧝㧼㧯㧤㧝㧣㨄㧼㧟㧼㧯㧠㧽㧣㧷㧾㧯㧝㧜㧞㧿㧟㧟㧜㧾㧝㧜㧣㧝㧷㧾㧞㧜㧜㧢㧟㧜㨂㧯㧝㧠㨏㧹㨖㨆㨅㧾㧝㧞㧤㧝㧟㧷㧲㧝㧛㧞㨃㧾㧝㧞㧢㧝㧛㧞㨃㧾㧝㧞㧡㧝㧟㧷㧲㧾㧝㧞㧣㧼㧭㧹㧰㧾㧵㨂㧱㧯㧵㧾㧯㨁㧵㨀㧰㧯㧻㨂㧱㧾㧯㨁㧾㧾㧱㧺㨀㧵㧺㧿㧼㧱㧯㨀㧯㧵㧾㧯㨁㧵㨀㧰㧮㧞㧜㨂㧙㧼㧜㨂㧜㨂㧡㨂㧝㧤㨂㧙㧼㧝㧤㨂㧙㧼㧰㧮㧝㧮㨀㧡㧳㧾㧳㧾㧸㧡㧹㧾㨅㧝㧼㨀㧯㧻㨁㨀㧵㧺㧳㧾㧮㨀㧢㧾㧝㧠㧣㧝㧜㧷㧾㧥㧝㧢㧚㧠㧥㧷㧲㧾㧥㧜㧝㧷㧲㧰㧞㧝㧜㧜㧜㧼㧯㧤㧟㧜㧚㧜㧝㨡㧯㧤㧞㧽㧢㧷㧾㧯㧝㧜㧞㧿㧡㨂㧞㧞㧷㧾㧝㧜㧡㧾㧝㧜㧢㧟㧚㧟㧷㧡㨂㧜㧚㧜㧝㨡㧯㧤㧝㧼㧯㧤㧝㧣㧝㧢㧺㧵㧼㧼㧯㧟㧝㧜㧜㧷㧾㧝㧠㧢㧞㧡㧜㨂㧯㧢㧯㧢㧭㧠㧣㧜㧜㧼㧞㧜㧚㧜...

Page 11: ...ve From Expansion Valve From Thermistor From Fan Motor From Compressor C W Orange From Compressor From Compressor S U Red To Reactor Gray To Terminal Board 1 Brown To Terminal Board N Blue To Control Box Green Yellow To Terminal Board 2 Red R V White ...

Page 12: ...s at minimum operating fre quency the compressor stops operating and then restarts after about 180 seconds and the abovementioned control is repeated 1 6 Outdoor unit overheat prevention control During cooling operation if the temperature of the outdoor unit heat exchanger exceeds the outdoor unit heat exchanger overheat preven tion temperature about 55 C the operating frequency is decreased by ab...

Page 13: ...ch is determined automatically by the room temperature sensor When a circuit breaker is used to control the ON OFF operation please insert a jumper as described above 1 15 Self diagnostic malfunction code display 1 15 1 Indoor unit 1 When a malfunction is confirmed a flashing malfunction code num ber is displayed to indicate the type of malfunction When the air to air heat pump is in non operating...

Page 14: ...ing operation is available during the winter season by the built in winter cool function Lower limit of outdoor temperature range is 10 C DB When the outside air temperature is low the outdoor unit fan operates at slower speed NOTE Built in protect device may work when outdoor temperature falls below 21 C DB depending on conditions 1 23 Auto restart When power failure occures after power is recove...

Page 15: ...eriods indicated by O in the diagram To determine the length of period to supply a current the zero cross timing of the AC input voltage is input to the microcomputer via the clock circuit The power source frequency is also determined at the same time The IGBT turns ON after the time length determined by the zero cross point to supply a current to the IGBT via the reactor This brings the current w...

Page 16: ...nted circuit board PCB this circuit monitors the PAM output voltage and turns off the PAM control signal and PAM drive immediately when an abnormal voltage output is gener ated At the same time it shuts off the compressor operation The protection voltage level is as follows 2 3 1 Details of troubleshooting procedure for PAM 1 PAM shutdown due to error 1 When the DC voltage detection circuit sends ...

Page 17: ...oor unit as soon as an error is judged Malfunction No 14 1 is indicated when the error code is called out by the indoor unit s self diagnosis function The LED on the outdoor unit flashes 14 times when an error is judged The LED on the outdoor unit flashes in normal pattern when the compressor stops operating Compressor OFF from remote control When a user complains that the air to air heat pump doe...

Page 18: ...board PCB 3 1 1 Brief explanation of bootstrap system single power drive system To supply power to the upper phase IC the microcomputer IC1 turns ON the lower phase IGBT LU LV LW This results in a charging current that flows to the electrolytic capacitor of each upper phase IC input and charges the bootstrap capacitor with a 15 V current The power supply for the subsequent stages is charged while ...

Page 19: ...of more then 20 s is generated from IPM Fo pin 14 and this results in an L input to overcurrent detection input pin 17 of the microcomputer IC1 and turns OFF the PWM signal output IC1 pins 20 through 25 to the IGBT gate SET RESET About 20 A SC SC reference voltage Delay by CR time constant circuit More than 20Ǵs a1 Protection circuit status Output current Ic A Sense voltage relative to shunt resis...

Page 20: ... sensor less operation at low rotation speed in the ini tial stage of operation This reduces the starting current and improves the IPM reliability 5 180 Energizing Control This is the control system to moderate the speed by the current phase difference for higher efficiency and lower noise of the compressor The current phase difference control is the control system paid attention to the interrelat...

Page 21: ...on again The blue PLASMACLUSTER lamp will turn off NOTE Use of the PLASMACLUSTER operation will be memorized and it will be activated the next time you turn on the unit To perform Plasmacluster operation in FAN only mode press the PLASMACLUSTER but ton when the unit is not operating The mode symbol of the remote control will go off and the fan speed cannot be set to AUTO Heating operation with 10 ...

Page 22: ...sleep Auto Sleep function COOL mode One hour after the timer is set the temperature setting rises by 1 C HEAT mode One hour after the timer is set the temperature setting drops by 3 C CANCEL 1 1 HOUR OFF TIMER SWING CLEAN FAN MODE SET C 1h DISPLAY TIMER OPERATION TO CHANGE TIME SETTING Cancel the TIMER setting then set it again TO COMBINE TIMER ON AND TIMER OFF Set the TIMER OFF and TIMER ON Examp...

Page 23: ...for 60 seconds at minimum frequency Overheat temperature setting value indoor unit heat exchanger ther mistor temperature about 45 to 54 C When in heating opera tion Automatic reset after safety period 180 sec None Yes Yes 5 Outdoor unit heat exchanger overheat shutdown Operation frequency lowers if out door unit heat exchanger tempera ture exceeds about 55 C during cooling operation Compressor st...

Page 24: ... compressor startup Operation OFF or ON Yes 1 Yes Yes 19 Outdoor unit heat exchanger thermistor open circuit error Compressor stops if there is open circuit in outdoor unit heat exchanger thermistor TH2 At compressor startup Operation OFF or ON Yes 1 Yes Yes 20 Outdoor unit outside air temperature ther mistor open circuit error Compressor stops if there is open circuit in outdoor unit outside air ...

Page 25: ...ol Room becomes too cold Air conditioner operates in full power even when set temperature is reached Room does not become cool Compressor does not operate Dehumidifying Room temperature memory Frequency control Normal operation Room temperature is stored in memory as 31 0 C and compressor does not stop Normal operation Room temperature is stored in memory as 18 5 C and compressor does not operate ...

Page 26: ...it error indication Cooling Dehumidifying Operation not affected Normal operation Outdoor unit ther mistor short circuit error indication Normal operation Outdoor unit ther mistor open circuit error indication Heating Rating control Defrosting Defrosting opera tion is activated unnecessarily Outdoor unit ther mistor short circuit error indication Defrosting opera tion is not activated and frost ac...

Page 27: ...1 TH2 1 2 Tester 3 4 TH2 TH5 500K 400K 300K 200K 100K 0 20 0 20 60 80 100 120 Tester 1 10 Connector CN8 Resistance at 25 52 76 k 5 8K 40K 30K 20K 0 10K 20 0 20 60 40 3 06K 4 17K 1 72K 2 28K Tester In case of TH2 heat exchanger thermistor 1 10 Connector CN8 Thermistor Compressor thermistor Heat exchanger thermistor Outdoor air temperature thermistor Suction thermistor 2 way valve thermistor No TH1 ...

Page 28: ...her mistor TH2 in heating operation Inspect connector on PWB Check thermistor installation condi tion Thermistor should not be discon nected Install correctly Main cause Inspection method Normal value condition Remedy Remote control is not designed to allow fan speed change in several operation mode Check operation mode Fan speed should change except during dehumidifying operation ventilation ligh...

Page 29: ... too close to out door unit Check distance between TV radio and outdoor unit If TV radio is placed too close it may become affected by noise Move TV radio away from outdoor unit Other than above Check for radio wave interference Main cause Inspection method Normal value condition Remedy Malfunction caused by noise Check for radio wave interference Main cause Inspection method Normal value conditio...

Page 30: ...Main cause Inspection method Normal value condition Remedy Dried up electrolytic capacitor Measure 320VDC line voltage 300 V or higher Replace electrolytic capacitor Layer short circuit in expansion valve coil Measure resistance 46 3 in each phase at 20 C Replace coil YES Immediately after startup YES YES NO NO NO YES NO Connect power cord to AC outlet Normal Using remote control operate air condi...

Page 31: ...taken with the polarities reversed the tester needle exceeds the scale range Therefore let the capacitor discharge before measurement Measure resistance in expansion valve coil Insert checker shown at left into connector CN12 on control PWB and operate air conditioner If frost accumulates on 2 way valve after 10 to 20 minutes of cooling operation then thermistors with yellow and black lead wires m...

Page 32: ... e d o m g n i l o o C e d o m g n i t a e H 4 4 l a m r o n b a l a m r o n b a l a m r o n l a m r o n l a m r o n b a l a m r o n b a 䌎䌯 l a m r o n l a m r o n START Replace PWB Modify compressor terminal marking Clean indoor heat exchanger Fix IPM PWB with screws securely Modify or replace termistor Are valves 2 way and 3 way close Does compressor rotate Check IPM lead wire 䋨䌕䌖䌗䋩 Check 䌉䌐䌍 sh...

Page 33: ...PWB Repair solder cracks 3 IPM circuit check Check that 3 lamps load light Check position detection voltage 15 V 5 V on control PWB Each voltage should be normal All 3 lamps load should light with same intensity Replace control PWB 4 Compressor check Measure compressor coil resistance for each phase of U V and W Use multi meter or digital tester capa ble of displaying two digits right of the decim...

Page 34: ...rt circuit in PAM IGBT Q5 Defective switching power supply circuit Malfunction of 3 terminal regulator IC4 IC1 Short circuit in expansion valve coil Malfunction of transistor array IC7 Solder contact or other problems Malfunction of 3 terminal regulator IC4 IC1 Microcomputer oscillator error Malfunction of microcomputer reset IC Malfunction of microcomputer Malfunction of serial signal circuit Che...

Page 35: ...he tester to cause damage If the sheaths of the thermistor lead wires or expansion valve lead wires inside the outdoor unit become damaged due to pinching by the front panel or other metal parts or contacting a pipe a high voltage can flow and destroy the circuits To prevent these problems carefully conduct assembly work Terminal board Ground 0 V line Point F Point E Reactor IPM Compressor motor 2...

Page 36: ...door unit The self diagnosis is indicated the error information by flashing LED1 on the outdoor unit The self diagnosis of outdoor unit is displayed for about 3 10 minutes Then the LED1 returns to normal display Plsmaclucter lamp blue Operation lamp red Timer lamp orange AUX ON OFF 5 second OFF 1 second OFF 1 second OFF 1 second OFF 1 second OFF 1 second ON 1 second ON 1 second ON 1 second ON 1 se...

Page 37: ...nit air outlet for blockage 1 Ensure unob structed air flow from the outdoor unit air outlet Operation Red Plasmacluster Blue 2 Check if the power supply voltage is AC 230V at full power 2 Connect power supply of proper voltage 3 Check the pipe con nections for refriger ant leaks 3 Charge the speci fied amount of refrigerant 4 Measure resistance of the outdoor unit compressor ther mistor 4 Replace...

Page 38: ...Current DC over current error Go to DC Over Current Error 6 0 error Operation Red Plasmacluster Blue Timer Orange 1 IPM pin level error 1 Check the IPM is attached correctly to the outdoor unit IPM PWB 1 Replace the out door unit IPM PWB assembly Operation Red Plasmacluster Blue Indoor and outdoor units do not oper ate 7 time Timer Orange 7 0 Outdoor unit AC Current AC over current error 1 Ensure ...

Page 39: ...n above inspections 1 thro hgh 3 4 Replace the out door unit control PCB assembly Indoor and outdoor units do not oper ate Timer Orange 4 4 way valve error or Gas leak error 1 Check the ther mistor indoor out door exchange are installed in correct portions 1 Correct the instal lation Operation Red Plasmacluster Blue 2 Check if the refriger ant volume is abnor mally low 2 Change the speci fied amou...

Page 40: ... Normal 2 Replace the out door unit fan Timer Orange 3 Detection error of DC fan negative rotation before compressor is driven 1 Temporary stop for DC fan circuit protec tion Operation Red Plasmacluster Blue Timer Orange 4 Detection error of inverter current for DC fan 1 Replace the out door unit control PCB assembly Operation Red Plasmacluster Blue Timer Orange 5 Outdoor unit DC fan open con nect...

Page 41: ...al lation Operation Red Plasmacluster Blue 2 No abnormalyity found in above inspection 2 Replace the PCB assembly Timer Orange 1 PAM clock error 1 Check the PAM clock for proper input 1 Replace the out door unit control PCB assembly Operation Red Plasmacluster Blue Timer Orange 2 PAM under volt age error 1 Check the AC power supply voltage for fluctuation 1 Correct the instal lation Operation Red ...

Page 42: ...motor for proper rotating operation Check fan lock 1 Replace the indoor fan motor Operation Red Plasmacluster Blue 2 Check the lead wire of the indoor fan motor for open cir cuit 2 Replace the indoor fan motor 3 Check connector of the indoor unit fan motor for secure installation 3 Correct the instal lation of the indoor fan motor connec tor 4 1 2 3 Normal 4 Replace the indoor unit control PCB Ind...

Page 43: ... None Displays 18 0 when malfunction code is called out 3 Malfunction diagnosis display None Displays 18 0 when malfunction code is called out 4 Malfunction diagnosis display 18 1 5 Malfunction diagnosis display 18 1 Indoor unit Outdoor unit 1 N 2 1 N 2 Indoor unit Outdoor unit 1 N 2 1 N 2 Indoor unit Outdoor unit 1 N 2 1 N 2 Indoor unit Outdoor unit 1 N 2 1 N 2 Indoor unit Outdoor unit 1 N 2 1 N ...

Page 44: ...C Relative Humidity Cooling 27 47 35 40 Heating 20 7 87 Model 12LR N 9LR N NO Condition Cooling Heating Cooling Heating Temp on C 66 63 66 65 Temp on C 40 2 40 2 Temp on C 14 22 14 23 Temp on C 17 6 16 6 3 way valve pressure MPaG 1 05 2 14 1 04 2 23 s 1 4 C 2 Accumulator 3 Strainer Expansion valve Heating Cooling Outdoor unit Condenser Evaporator Indoor unit Reverse valve Comp ressor Flare couplin...

Page 45: ...ting 700 800 900 1000 1100 20 25 30 35 40 45 Outside air temp C Input W Outside air temp 䋨㷄䋩 Cooling capacity kW 3 2 3 4 3 6 3 8 4 0 20 25 30 35 40 45 Outside air temp 㷄 Input 䌗 800 900 1000 1100 1200 10 5 0 5 10 15 Outside air temp 䋨㷄䋩 Heating capacity kW 3 0 3 5 4 0 4 5 5 0 10 5 0 5 10 15 400 500 600 700 800 20 25 30 35 40 45 Outside air temp C Input W Outside air temp 䋨㷄䋩 Cooling capacity kW 2 ...

Page 46: ...red or parts are replaced measure insulation resistance of the equipment using an insulation resistance meter If the measured resistance is lower than 1 MΩ inspect parts and repair or replace defective parts 1 INDOOR UNIT 1 Open the open panel 2 Remove a screw fixing the cord holder 3 Remove the cord holder 4 Loosen the screws on the terminal board remove the Unit to Unit wiring connected with boa...

Page 47: ...r hook and pull the front panel R out 10 Remove the front panel L Push the upper hook and pull the front panel L out 11 Cut the fixing band and remove the thermistor and earth wire 12 Remove the screw fixing the control box cover 13 Remove the 3 connectors FAN MOTOR LOUVER MOTOR and PLASMCLUSTER 14 Unscrew the screw and remove the control box 㽲㽳㽲㽲㽳㽳㽲㽲㽳㽳 fixing band ...

Page 48: ...nd remove it 19 Remove the pipe holder 20 Remove the cycle assembly filter guide C 㽲㽳㽲㽳 left side right side Support the motor with your hand when unhooking the motor cover 㽲㽳䊶Insert the screwdriver in the 2 holes to unhook the pipe holder a Remove the 2 screws fixing the cover L and drain cover cover L drain cover b Lift the left side of the evaporator and pull out the pipe from the cabinet ...

Page 49: ...2 screws fixing the guard holder L and guard holder R 2 Pull the left side of wire guard forward and the hook of the guard holder L will be unhooked 3 Rotate the guard holder L in clockwise and remove 4 Slide the wire guard L to the left and remove left side right side ...

Page 50: ...uard holder R 6 Rotate the guard holder R in anticlockwise and remove 7 Slide the wire guard R to the right and remove 8 Remove the 2 screw covers Insert the screwdriver in the 2 holes 9 Unscrew the 2 screws 10 Disconnect the connector and remove the plasmacluster unit ...

Page 51: ... of the top plate 3 Unscrew the 2 screws on the left side of the top plate and remove the top plate 4 Unscrew the screw on the right side of the front panel 5 Unscrew the screw on the left side of the front panel 6 Unscrew the 4 screws on the front panel and remove front panel 7 Unscrew the 5 screws on the side cover R ...

Page 52: ...the 3 screws on the side cover L and remove the side cover L 10 Remove the connectors and reactor in the control box 11 Remove the 2 screws fixed the control box 12 Remove the 2 screws fixed the bulkhead plate 13 Remove the compressor covers 1 2 3 and 4 14 Remove the nut and remove the terminal cover 㽲㽳㽴㽵 ...

Page 53: ... wire the thermistor and the cover gasket 16 Remove the compressor cover 17 Remove the 5 thermistors 18 Remove the outdoor fan 19 Unscrew the 2 screws and remove the motor angle 20 Thermistor position Red Black Yellow Orange Green ...

Page 54: ...12LRN 5 9 ...

Page 55: ...vice only The contents are subject to change without notice 12LRN SPLIT TYPE 12LR N MODEL In the interests of user safety Required by safety regulations in some countries the set should be restored to its original condition and only parts identical to those specified should be used AIR TO AIR HEAT PUMP 09LR N PartsGuide 1 INDOOR UNIT PARTS 2 ACCESSORY PARTS 3 OTHER PARTS 4 INDOOR PACKING PARTS 5 O...

Page 56: ... 1 15 DCOV A345JBKZ AH N DRAIN COVER K 1 16 DPFT A022JBKZ AF N DRAIN JOINT ASS Y 1 17 DSRA A346JBKZ BB N DRAIN PAN SUB ASS Y 1 18 LHLD B083JBFA AE N HOLDER 1 19 LHLD B084JBFA AE N COVER 1 20 MARMPA070JBFA AD N ARM 1 21 MJNTPA166JBFA AD N LOUVER LINK 1 22 MLOV A553JBFA AL N LOUVER 1 23 MLOV A554JBFA AD N VERTICAL LOUVER 1 24 NBRG A028JBFL AB N BEARING 1 25 NBRG A038JBFP AB N BEARING C 1 26 PCOV B72...

Page 57: ... A181JBFA AE N FILTER GUIDE C 1 48 GGAD A073JBTA AP N WIRE GUARD L 1 49 GGAD A074JBTA AP N WIRE GUARD R 1 50 LHLD B105JBFA AC N GUARD HOLDER L 1 51 LHLD B106JBFA AC N GUARD HOLDER R 1 54 PSHE A321JBEZ AD N JYUKOU COVER 1 55 NBRG A052JBFA AC BEARING 1 56 LX BZA449JBEZ SPECIAL SCREW 5 2 DSGY E345JBKZ BF N SERVICE PWB K 2LRN 5 2 DSGY E346JBKZ BF N SERVICE PWB K 9LRN 5 4 FSGY A893JBKZ AS DISPLAY BOARD...

Page 58: ... N LEAD WIRE 6 2 1 PSEN A071JBKZ AH FLARE NUT ASS Y 3 8 6 2 2 PSEN A070JBKZ AL FLARE NUT ASS Y 1 4 6 2 3 QFS GA078JBZZ AD FUSE FU1 ON PWB 6 2 4 VHVTNR9V511 A AD VARISTOR NR1 ON PWB 6 2 5 QW VZG320JBZZ AH LEAD WIRE ON DISPLAY BOARD UNIT 9 7 TLABCC768JBRZ AC N WIRING DIAGRAM 9 13 TLAB E917JBEZ AC N EU ENERGY LABEL 12LR N 9 13 TLAB E922JBEZ AC N EU ENERGY LABEL 09LR N 9 14 TSPC G869JBRA AD N NAME LAB...

Page 59: ...2 6 2 8 1 2 2 37 2 38 1 6 2 12 1 7 3 15 3 14 3 13 2 42 2 40 3 18 2 3 1 12 2 39 2 2 39 6 2 39 7 2 48 2 2 48 1 2 39 3 2 46 2 2 46 3 2 46 1 2 7 3 2 7 4 2 7 5 2 7 6 2 59 2 57 2 58 3 21 3 7 2 60 3 26 3 5 3 2 2 35 3 11 3 23 3 22 3 7 2 3 7 1 2 60 1 1 9 1 2 8 2 14 1 2 27 1 3 6 3 8 3 9 2 21 2 23 2 24 3 24 3 6 1 3 6 2 3 6 4 3 6 3 2 21 3 19 2 25 2 33 3 33 3 32 3 6 5 3 1 3 3 3 4 3 25 3 0 3 3 1 2 41 2 59 1 ...

Page 60: ... 2 21 MSPR A195JBEZ AF THERMISTOR SPRING 2 23 MSPR A036JBE0 AB THERMISTOR SPRING 2 24 MSPR A026JBE0 AB SPRING 2 25 NFANPA145JBEZ AR PROPELLER FAN 2 26 PPLT A663JBTA AL SIDE COVER R 2 27 PSPF B004JBEZ AH COMP COVER TOP 2 27 PSPF B204JBEZ AC N COMP COVER TOP A 2 27 1 PSPF B205JBEZ AE N COMP COVER TOP B 2 28 PSPF B005JBEZ AX COMPRESSOR COVER 2 28 PSPF B203JBEZ AR N COMPRESSOR COVER 2 31 TLAB D433JBRZ...

Page 61: ... 14 GLEG A149JBEZ AD COMPRESSOR CUSHION 3 15 LX NZA313JBEZ AE SPECIAL NUT 3 18 PCOV A010JBE0 AF TERMINAL COVER 3 19 PSEL A403JBE0 AB COVER GASKET 3 20 PSPF B206JBEZ AN N COMP COVER FRONT 3 21 PSPF B212JBEZ AM N COMP COVER REAR 3 22 CPIPCB497JBKZ AS N HEAT TUBE ASS Y 3 23 PGUMSA415JBEZ AB DAMPER RUBBER 3 24 PGUMS0170JBE0 AE DAMPER RUBBER 3 25 PFPFPE148JBEZ AC BASE PAN INSU C 3 26 PGUMSA386JBEZ AE D...

Page 62: ...Z 5 3 15 AE M MARMPA070JBFA 1 1 20 AD N MJNTPA166JBFA 1 1 21 AD N MLOV A553JBFA 1 1 22 AL N MLOV A554JBFA 1 1 23 AD N MSPR A026JBE0 5 2 24 AB MSPR A036JBE0 5 2 23 AB MSPR A195JBEZ 5 2 21 AF N NBRG A028JBFL 1 1 24 AB N NBRG A038JBFP 1 1 25 AB N NBRG A052JBFA 1 1 55 AC NFANCA132JBKZ 1 1 42 AX N NFANPA145JBEZ 5 2 25 AR P PBOX A551JBFA 1 1 7 AL N PCOV A010JBE0 5 3 18 AF PCOV A594JBPZ 5 2 7 1 AE PCOV A...

Page 63: ... 2 5 AH QW VZG333JBZZ 1 5 11 AE N QW VZG335JBZZ 3 5 8 AE N R RCILZA031JBZZ 5 1 4 BF RCORFA007JBZZ 1 5 12 AG N RFIL A132JBZZ 5 1 9 AF RH HXA136JBZZ 1 5 9 AM N RH HXA154JBZZ 5 1 11 AA RH IXB019JBZZ 5 1 2 6 BC N RMOT A201JBZZ 1 5 14 AM N RMOTSA039JBZZ 5 3 7 1 AX RNF A001VBE0 5 1 10 AF S SPADBA515JBEZ 4 8 1 AG SPAKCC901JBEZ 4 8 3 AP N SPAKCC902JBEZ 7 90 3 AS N SPAKCC913JBEZ 4 8 3 AP N SPAKCC914JBEZ 7 ...

Page 64: ...oduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher COPYRIGHT XXXX BYSHARP CORPORATION ALL RIGHTS RESERVED ...

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