Mitsubishi Electric DXK09ZJ-S Technical Manual Download Page 72

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'11 • SRK-T-118

'09•SRK-DB-087D

(9) Checking the indoor electrical equipment

(a) Indoor PCB check procedure

(b) Outdoor unit

Is there voltage between terminal

blocks

①

and

②

? (AC 220/230/240

Indoor electrical components

are normal.

Is the voltage between terminal

blocks

②

and

③

oscillating between

DC 0 and 20V?

Inspect power source

for outdoor unit.

Replace fuse.

Replace indoor PCB.

Is the fuse burnt out? (3.15 A)

YES

(b) Indoor unit fan motor check procedure

1) Indoor PCB output check

① ④

⑤

2) Fan motor resistance check

⑥

⑤

④

③

②

①

⑥

⑤

④

③

②

①

DC15V

Indoor PCB

DC 308~336V

DC several V
(4~6 V)

CNU

(–)

GND

Blue

Yellow

White

Blac

Sensor

Operation

mode

Phenomenon

Shortcircuit

Disconnected wire

Heat exchanger
sensor

Cooling
Heating

Ourdoor air
temperature sensor

Cooling
Heating

Discharge pipe

sensor

All modes

Measuring point

Resistance when normal

① − ③

−

④ − ③

−

Measuring
point

Resistance when
normal

① − ③
④ − ③
⑤ − ③
⑥ − ③

Defrosting is performed for 10 minutes at approx. 45 (models 50 : 35) minutes.

Summary of Contents for DXK09ZJ-S

Page 1: ...ESIDENTIAL AIR CONDITIONING TECHNICAL MANUAL PARTS LIST INVERTER WALL MOUNTED TYPE RESIDENTIAL AIR CONDITIONER Split system air to air heat pump type DXK09ZJ S DXK12ZJ S DXK18ZJ S Manual No 11 SRK T 118 ...

Page 2: ......

Page 3: ...TECHNICAL MANUAL ...

Page 4: ... operation 43 40 1 Operation control function by remote controller 5 Flap and louver control 41 4 Custom cord switching procedure 40 3 Auto restart function 2 Unit ON OFF button 40 39 8 Installation location setting 43 9 Outline of heating operation 44 11 Outline of automatic operation 45 10 Outline of cooling operation 45 12 Protective control function 46 53 10 MAINTENANCE DATA 54 4 Troubleshooti...

Page 5: ...tion procedures corresponding to detail of trouble 64 9 Checking the indoor electrical equipment 69 11 1 Instullation of wired remote controller RC E4 74 11 OPTION PARTS 74 11 2 Interface kit SC BIKN E 80 11 3 Super link E board SC ADNA E 84 How to read the model name Example DXK 09 Z Series code Inveter type Product capacity Model name DXK Wall mounted type DXC Outdoor unit J S ...

Page 6: ...RFRPSXWHU WKHUPRVWDW ዙ 2SHUDWLRQ LVSOD 581 UHHQ 7 0 5 HOORZ 32 5 UHHQ 872 UHHQ 6DIHW GHYLFHV RPSUHVVRU RYHUKHDW SURWHFWLRQ 2YHUFXUUHQW SURWHFWLRQ URVW SURWHFWLRQ 6HULDO VLJQDO HUURU SURWHFWLRQ QGRRU IDQ PRWRU HUURU SURWHFWLRQ HDWLQJ RYHUORDG SURWHFWLRQ LJK SUHVVXUH FRQWURO RROLQJ RYHUORDG SURWHFWLRQ QVWDOODWLRQ 5HIULJHUDQW SLSLQJ VL H 2 PP LTXLG OLQH Ǿ DV OLQH Ǿ FRQQHFWLQJ PHWKRG P ODUH FRQQHFWLQJ...

Page 7: ...5 HOORZ 32 5 UHHQ 872 UHHQ 6DIHW GHYLFHV RPSUHVVRU RYHUKHDW SURWHFWLRQ 2YHUFXUUHQW SURWHFWLRQ URVW SURWHFWLRQ 6HULDO VLJQDO HUURU SURWHFWLRQ QGRRU IDQ PRWRU HUURU SURWHFWLRQ HDWLQJ RYHUORDG SURWHFWLRQ LJK SUHVVXUH FRQWURO RROLQJ RYHUORDG SURWHFWLRQ QVWDOODWLRQ 5HIULJHUDQW SLSLQJ VL H 2 PP LTXLG OLQH Ǿ DV OLQH Ǿ FRQQHFWLQJ PHWKRG P ODUH FRQQHFWLQJ ዙ LTXLG OLQH DV LQH QVXODWLRQ IRU SLSLQJ P 1HFHVVDU...

Page 8: ...tric heater Operation control Operation switch Wireless Remote control Room temperature control Microcomputer thermostat Operation Display RUN Green TIMER Yellow HI POWER Green 3D AUTO Green Safety devices Compressor overheat protection Overcurrent protection Frost protection Serial signal error protection Indoor fan motor error protection Heating overload protection High pressure control Cooling ...

Page 9: ... piping 㧔Refer to the above view㧕 Hole on wall for right rear piping Hole on wall for left rear piping Gas piping Outlet for wiring Drain hose Liquid piping F E C D B Symbol A 㧔Ǿ65㧕 VP16 Ǿ6 35㧔1㧛4 㧕㧔Flare㧕 Content 㧔Ǿ65㧕 09 12 Ǿ9 52㧔3㧛8 㧕㧔Flare㧕 Outlet for piping㧔on both side㧕 G 18 Ǿ12 7㧔1㧛2 㧕㧔Flare㧕 Model Unit mm غ 120 19 60 150 17 3 G 790 60 14 5 45 31 60 45 798 294 229 3 45 60 9 100 106 5 585 10...

Page 10: ...ounded by walls on the four sides 2 The unit must be fixed with anchor bolts An anchor bolt must not protrude more than 15mm 3 Where the unit is subject to strong winds lay it in such a direction that the blower outlet faces perpendicularly to the dominant wind direction 4 Leave 1m or more space above the unit 5 A wall in front of the blower outlet must not exceed the units height 6 The model name...

Page 11: ...Flare Notes 1 It must not be surrounded by walls on the four sides 2 The unit must be fixed with anchor bolts An anchor bolt must not protrude more the 15mm 3 Where the unit is subject to strong winds lay it in such a direction that the blower outlet faces perpendicularly to the dominant wind direction 4 Leave 1m or more space above the unit 5 A wall in front of the blower outlet must not exceed t...

Page 12: ... 11 SRK T 118 3 Remote controller a Wireless remote controller Unit mm 60 17 3 150 ...

Page 13: ...kness 100 to 200m 0 5mm2 2 cores 0 75mm2 2 cores 1 25mm2 2 cores 2 0mm2 2 cores Under 300m Under 400m Under 600m Upper part Lower part Lower case Sheath Upper cace Board Wiring Upper Lower X Y Sheath Upper cace Board Wiring Upper Lower Y X Tighten the screws after cutting off the thin part of screw mounting part Embedded mounting The peeling off length of sheath The peeling off length of sheath In...

Page 14: ... 2 t o R AMP 2 HEAT EXCHANGER 5 FMI SMI LM1 LM2 F Va ThI Th2 Th3 T DS 㨪㨪 Blue Black BK Red BL RD White WH Yellow㧛Green Y㧛G Color Mark Heat exch sensor Fan motor Room temp sensor Flap motor Diode stack DS Fuse F Connector CNE CNY FMI Terminal block T Description Item Varistor Va LM1 2 SMI Louver motor ThI Th2 3 Yellow Y Humidity sensor HD Power Source 1 Phase 220㧛230㧛240V 50Hz 3 ELECTRICAL WIRING ...

Page 15: ... The cable specifications are based on the assumption that a metal or plastic conduit is used with no more than three cables contained in a conduit and a voltage drop is 2 For an installation falling outside of these conditions please follow the internal cabling regulations Adapt it to the regulation in effect in each country 9 2 0 32 1 5mm2 x 3 1 5mm2 12 09 MAX running current Power cable size 㧔m...

Page 16: ... in each country The cable specifications are based on the assumption that a metal or plastic conduit is used with no more than three cables contained in a conduit and a voltage drop is 2 For an installation falling outside of these conditions please follow the internal cabling regulations Adapt it to the regulation in effect in each country 14 2 0 18 1 5mm2 x 3 1 5mm2 3 1 2 N 18 M T2 T1 S BK WH R...

Page 17: ...ressure Level dB standard 2 10 5 P a Mid Octave Band frequency Hz 1000 2000 4000 8000 63 125 250 500 Mid Octave Band frequency Hz Indoor Unit Model DXK09ZJ S Noise Level Cooling 34 dB A Heating 39 dB A Cooling Heating Condition ISO T1 JIS C9612 N70 N60 N50 N40 N30 N20 N70 N60 N50 N40 N30 N20 Outdoor Unit Model DXC09ZJ S Noise Level Cooling 48 dB A Heating 47 dB A Cooling Heating ISC10016 4 NOISE L...

Page 18: ...Sound Pressure Level dB standard 2 10 5 P a Mid Octave Band frequency Hz 1000 2000 4000 8000 63 125 250 500 Mid Octave Band frequency Hz Indoor Unit Model DXK12ZJ S Noise Level Cooling 45 dB A Heating 42 dB A Cooling Heating Condition ISO T1 JIS C9612 N70 N60 N50 N40 N30 N20 Outdoor Unit Model DXC12ZJ S Noise Level Cooling 50 dB A Heating 50 dB A Cooling Heating N70 N60 N50 N40 N30 N20 ISC10016 ...

Page 19: ...N50 N30 N40 N60 N70 N20 Sound Pressure Level dB standard 2 10 5 P a Mid Octave Band frequency Hz 10 20 30 40 50 60 70 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Indoor Unit Model DXK18ZJ S Noise Level Cooling 46 dB A Heating 45 dB A Cooling Heating Model DXK18ZJ S Outdoor Unit Model DXC18ZJ S Noise Level Cooling 51 dB A Heating 53 dB A Cooling Heating Condition ISO T1 JIS C9612 ...

Page 20: ...sensor Th1 Th2 Gas TH2 Heat exchanger sensor TH1 EEV Capillary tube Heat exchanger Humidity sensor HD Model DXK18ZJ S Models DXK09ZJ S 12ZJ S Indoor unit Outdoor unit Flare connection Flare connection Liquid pipe φ Gas pipie φ Service valve Heat exchanger Heat exchanger sensor Electronic expansion valve Liquid Strainer Muffler Capillary tube Outdoor air temp sensor Muffler Muffler Compressor Accum...

Page 21: ...rt Cooling operation Approximately 15 to 46 D B Heating operation Approximately 15 to 24 D B Refer to the selection chart Selection chart Correct the cooling and heating capacity in accordance with the conditions as follows The net cooling and heating capacity can be obtained in the following way Net capacity Capacity shown on specication Correction factors as follows 1 Coefcient of cooling and he...

Page 22: ...ing on outdoor heat exchanger during heating How to obtain the cooling and heating capacity Piping length m Cooling Heating 7 1 0 1 0 10 0 99 1 0 15 0 975 1 0 20 0 965 1 0 25 0 95 1 0 Air inlet temperature of DXK12ZJ S outdoor unit in CWB Adjustment coefficient 15 0 95 0 95 0 94 0 93 0 91 0 88 0 86 0 87 0 92 1 00 10 9 7 5 3 1 1 3 5 or more DXK12ZJ S 3300 3217 ...

Page 23: ... 01 4 18 2 94 m3 min 6 WB 4 09 4 04 4 00 3 95 3 90 Hi 22 3 29 2 80 3 47 2 77 3 66 2 92 3 75 2 90 3 83 2 87 3 99 3 00 4 13 2 93 10 WB 4 35 4 31 4 28 4 22 4 18 10 1 24 3 21 2 76 3 39 2 73 3 59 2 90 3 69 2 87 3 77 2 85 3 93 2 98 4 07 2 91 15 WB 4 73 4 69 4 66 4 61 4 56 m3 min 26 3 13 2 72 3 31 2 70 3 52 2 86 3 62 2 85 3 70 2 82 3 87 2 96 4 02 2 89 20 WB 5 09 5 05 5 02 4 96 4 92 28 3 04 2 69 3 23 2 66...

Page 24: ...re damage on the ceiling floor furniture and any other valuables When perform the air conditioner operation cooling or drying opera tion in which ventilator is installed in the room In this case using the air conditioner in parallel with the ventilator there is the possibility that drain water may backflow in accordance with the room lapse into the negative pressure status Therefore set up the ope...

Page 25: ...st of the refrigerant circuit Tighten the flare nut by torque wrench with specified method If the flare nut were tightened with excess torque this may cause burst and refrigerant leakage after a long period The electrical installation must be carried out by the qualified electrician in accordance with the norm for electrical work and national wiring regulation and the system must be connected to t...

Page 26: ...Please note that measurement B protrusion from the flaring block will vary depending on the type of a flare tool in use If a conventional flare tool is used please use a copper pipe gauge or a similar instrument to check protrusion so that you can keep measurement B to a correct value Clutch type flare tool for R410A Conventional R22 flare tool ø6 35 ø9 52 ø12 7 0 0 0 5 0 0 0 5 0 0 0 5 1 0 1 5 1 0...

Page 27: ...ventional flare tool Please note that measurement B protrusion from the flaring block will vary depending on the type of a flare tool in use If a conventional flare tool is used please use a copper pipe gauge or a similar instrument to check protrusion so that you can keep measurement B to a correct value Clutch type flare tool for R410A Conventional R22 flare tool ø6 35 ø9 52 ø12 7 0 0 0 5 0 0 0 ...

Page 28: ...g If the power supply is not shut off there is a risk of electric shocks unit failure or personal injury due to the unexpected start of fan Stop the compressor before removing the pipe after shutting the service valve on pump down work If the pipe is removed when the compressor is in operation with the service valve open air would be mixed in the refrigeration circuit and it could cause explosion ...

Page 29: ...processing for the power cord Or do not deforming the power plug due to tread it This may cause fire or heating Do not run the unit with removed panels or protections Touching rotating equipments hot surfaces or high voltage parts can cause personal injury due to entrapment burn or electric shocks Do not perform any change of protective device itself or its setup condition The forced operation by ...

Page 30: ...e and hot air will not bother neighboring residents 〇 Where snow will not accumulate 〇 Where strong winds will not blow against the outlet pipe 〇 A place where no TV set or radio receiver is placed within 5m If electrical interference is caused seek a place less likely to cause the problem 〇 If a operation is conducted when the outdoor air temperature is 5 lower the outdoor unit should be installe...

Page 31: ... hold connec This cl diamet Please Please ground It has Groundi Cable cla 4 ELECTRICAL WIRING Take care so that installed pipes may not touch components within a unit If touching with an internal component it will generate abnormal sounds and or vibrations 4 On site piping work IMPORTANT How to remove the side cover Carry out the on site piping work with the operation valve fully closed Give suffi...

Page 32: ...d for air tightness at the factory check the connecting pipes after the installation work for air tightness from the operation valve s check joint equipped on the outdoor unit side While conducting a test keep the operation valve shut all the time a Raise the pressure to 0 5 MPa and then stop Leave it for five minutes to see if the pressure drops b Then raise the pressure to 1 5 MPa and stop Leave...

Page 33: ...ol box Grounding terminal Cable clamp Indoor Outdoor connecting wire Power cable Please connect the earthed line of indoor and outdoor connecting wire to a bracket part of the illustration power cable indoor outdoor connecting wire circuit diagram 4 ELECTRICAL WIRING WORK For details of electrical cabling refer to the indoor unit installation manual CAUTION CAUTION Power cable indoor outdoor conne...

Page 34: ...de for cables Required field cables H 05 R N R 4or5 G 1 5 Harmonized cable type 300 500 volts Natural and or synth rubber wire insulation Polychloroprene rubber conductors insulation Stranded core Number of conductors One conductor of the cable is the earth conductor yellow green Section of copper wire mm2 Power cables and connecting wires are securely fixed to the terminal block The power supply ...

Page 35: ...ompressor before removing the pipe after shutting the service valve on pump down work If the pipe is removed when the compressor is in operation with the service valve open air would be mixed in the refrigeration circuit and it could cause explosion and injuries due to abnormal high pressure in the cooling cycle Only use prescribed optional parts The installation must be carried out by the qualifi...

Page 36: ... Any remaining packing materials can cause personal injury as it contains nails and wood And to avoid danger of suffocation be sure to keep the plastic wrapper away from children and to dispose after tear it up Be sure to insulate the refrigerant pipes so as not to condense the ambient air moisture on them Insufficient insulation can cause condensation which can lead to moisture damage on the ceil...

Page 37: ...erence between indoor and outdoor units Plug the end of the pipe with tape or other material and fill the pipe with nitrogen gas Only use nitrogen gas N2 Taping N2 Nitrogen Brazing Station valve Primary side Secondary side 0 5MPa Hand Relief valve Nitrogen gas Brazing must be performed under a nitrogen gas flow About brazing When pipe is brazing 4 Caution about selection of installation location W...

Page 38: ... tool handle mm Operation valve size mm 5 Air tightness test Gas side operation valve Check joint Pressurize Close Outdoor unit Indoor unit Work flow 6 Evacuation Air tightness test completed Vacuuming completed Vacuuming begins Do not hold the valve cap area with a spanner 3 Refrigerant pipe wall thickness and material NOTE Phosphorus deoxidized seamless copper pipe ICS 23 040 15 ICS 77 150 30 ø6...

Page 39: ...ness larger than the specified minimum pipe thickness 14 18 34 42 49 61 45 60 30 45 30 45 150 200 250 Use a torque wrench If a torque wrench is not available fasten the flare nut manually first and then tighten it further using the left table as a guide 1 2 Run the vacuum pump for at least one hour after the vacuum gauge shows 0 1MPa or lower 76cmHg or lower When the system has remaining moisture ...

Page 40: ...external force may work on terminal connections Grounding terminals are provided in the control box Switchgear or Circuit Breaker CAUTION CAUTION CAUTION Wires for connecting indoor and outdoor units Exterior tape Gas piping Insulation Liquid piping Band accessory Pipe cover accessory 8 Heating and condensation prevention Pay attention to the following points in addition to the above for the R410A...

Page 41: ... IEC57 for supply cords of parts of appliances for outdoor use Ground the unit Do not connect the grounding wire to a gas pipe water pipe lightning rod or telephone grounding wire If improperly grounded an electric shock or malfunction may result A grounding wire must be connected before connecting the power cable Provide a grounding wire longer than the power cable The installation of an impulse ...

Page 42: ...N CLEAR button ACL switch This switch is for resetting microcomputer and setting time OFF TIMER button This button selects OFF TIMER operation TEMPERATURE button These buttons sets the indoor temperature These buttons are used for setting the current time and timer function as well This button cancels the ON timer OFF timer and SLEEP operation CANCEL button The above illustration shows all control...

Page 43: ...peration b Details of operation 3 ޓ Auto restart function a b 1 2 4 ޓ Custom cord switching procedure a Modifying the indoor printed circuit board b Modifying the wireless remote controller 1 2 Cut Function operation mode Indoor temperature setting Fan speed Flap Louver Timer Switch Cooling Thermal dry Heating ...

Page 44: ...ox 50 Approx 60 Approx 60 Angle of Flap from Horizontal Center installation Remote controller display Right end installation Left end installation Angle of Louver Left Approx 50 Left Approx 50 Left Approx 20 Left Approx 45 Center Left Approx 30 Right Approx 20 Center Right Approx 50 Right Approx 20 Left Approx 20 Center Right Approx 30 Right Approx 45 Right Approx 50 Louver stopped Swing Spot Wide...

Page 45: ...p down Swing Heating Center Fixed Wide Fixed Flap Louver Cooling Heating Horizontal blowing Fixed Slant forwardl blowing Fixed Operation mode Indoor temp Setting temp 2 C Setting temp Indoor temp 2 C At heating At cooling Air flow direction contorol 2 C Setting temp Indoor temp 5 C 2 C Indoor temp Setting temp 5 C Indoor temp Setting temp 5 C Setting temp Indoor temp 5 C The control in 4 continues...

Page 46: ...ng unit is running press the ON OFF button to stop 2 Press the AIR FLOW UP DOWN button and the AIR FLOW LEFT RIGHT button together for 5 seconds or more 3 Setting the air conditioning installation location 4 Press the ON OFF button Airflow range Airflow range Airflow range Left End Installation Center Installation Right End Installation Center Installation Right End Installation Left End Installat...

Page 47: ...c d e a b 2 30 115rps 30 115rps 30 76rps 30 46rps DXK12ZJ S 23 106rps 23 106rps 23 78rps 23 50rps DXK18ZJ S 30 115rps 30 115rps 30 72rps 30 42rps DXK09ZJ S Model Fan speed Auto MED HI LO model 18 35 model 18 35 model 18 2 ޓ model 18 2 ޓ a b c e model 18 10 16 minutes and 50 seconds model 18 18 minutes 20 20 15 10 5 0 5 10 15 10 5 0 Outdoor air temperature Outdoor heat exchanger temperature 20 20 1...

Page 48: ...ps 23 38rps DXK18ZJ S 20 74rps 20 74rps 20 55rps 20 34rps DXK09ZJ S Model Fan speed Auto MED HI LO 11 ޓ Outline of automatic operation a Determination of operation mode Heating Dehumidifying Cooling Indoor air temperature C Outdoor air temperature C A When both the indoor and the outdoor air temperatures are in the range A cooling or heating is switched depending on d e a b 2 model 18 2 ޓ model 18...

Page 49: ...pressor running the lower limit 41 C or more 29 rps The lower limit of compressor command speed is set to 30 or 40 model 18 29 rps and even if the calculated result becomes lower than that after fuzzy calculation the speed is kept to 30 or 40 model 18 29 rps However when the thermo becomes OFF the speed is reduced to 0 rps b 1 2 3 c d 18 0 18 30 Heating Dehumidifying Indoor air temperature C Outdo...

Page 50: ...30 rps the speed is kept to 50 44 30 rps However when the thermo becomes OFF the speed is Models 09 12 First time Since the second times Outdoor air temperature C A B C D Model 18 model 18 9ºC or 10ºC 9 16 19 10 Note 1 Value in are for the model 18 2 Detail of operation 3 Reset conditions c Cooling high pressure control 1 Purpose 2 Detector 3 Detail of operation 53 58 63 Outdoor heat exchanger tem...

Page 51: ...the output speed obtained with the fuzzy calculation exceeds the upper limit the upper limit value is maintained The lower limit of compressor command speed is set to 40 rps and even if the calculated result becomes lower than that after fuzzy calculation the speed is kept to 40 rps However when the thermo becomes OFF the speed is reduced to 0 prs rps 3 Reset conditions e Heating high pressure con...

Page 52: ...tion iii iv that after fuzzy calculation the speed is kept to 40 rps However when the thermo becomes OFF the speed is reduced to 0 prs rps a Operating conditions b Detail of operation When the outdoor air temperature TH2 is 11ºC or higher continues for 30 seconds while the compressor command speed other than 0 rps i ii iii iv Taking the upper limit of compressor command speed range at 78 rps if th...

Page 53: ...ir temperature C a b 09 SRK DB 087D h Compressor overheat protection 1 Purpose 2 Detail of operation a Discharge pipe temperature C Example Fuzzy 90 100 110 b i Current safe 1 Purpose 2 Detail of operation j Current cut 1 Purpose 2 Detail of operation k Outdoor unit failure Cooling Heating Lower limit speed Item Model 3 ޓ Reset conditions When either of the following condition is satisfied a ޓ The...

Page 54: ...Serial signal transmission error protection 1 Purpose 2 Detail of operation n Rotor lock o Outdoor fan motor protection p Outdoor fan control at low outdoor temperature Cooling 1 Operating conditions 2 Detail of operation 3 Reset conditions Heating 1 Operating conditions 2 Detail of operation 3 Reset conditions Outdoor temperature 10 C Outdoor temperature 10 C Outdoor fan a b a b a c model 50 0ºC ...

Page 55: ...ion When the compressor has been turned OFF b When the conditions of 1 above are met the compressor stops Error stop occurs when the compressor has stopped 3 times within 60 minutes c When after meeting the conditions of a and b above the compressor speed indoor air temperature Th1 and indoor heat exchanger temperature Th2 have met the conditions in the following table for 5 minutes Compressor spe...

Page 56: ...H YDOYH RSHQ 3 Troubleshooting procedure If the air conditioner does not run at all I WKH DLU FRQGLWLRQHU GRHV QRW UXQ DW DOO GLDJQRVH WKH WURXEOH XVLQJ WKH IROORZLQJ WURXEOHVKRRWLQJ SURFHGXUH I WKH DLU FRQGLWLRQHU LV UXQQLQJ EXW EUHDNV GRZQ SURFHHG WR WURXEOHVKRRWLQJ VWHS Important KHQ DOO WKH IROORZLQJ FRQGLWLRQV DUH PHW ZH VD WKDW WKH DLU FRQGLWLRQHU ZLOO QRW UXQ DW DOO D 7KH 581 OLJKW GRHV QRW...

Page 57: ... 54 11 SRK T 118 09 SRK DB 087D 4 Troubleshooting procedure If the air conditioner runs NO NO NO NO YES YES YES YES 55 56 62 56 62 ...

Page 58: ...rned on or when there is no signal for 7 minute 35 seconds or longer during operation the compressor is stopped Defective power supply Broken signal wire defective indoor outdoor PCB Error of signal transmission If the compressor motor s magnetic pole positions cannot be correctly detected when the compressor starts The air conditioner stops Defective compressor Open phase on compressor Defective ...

Page 59: ... indoor unit Data are recorded for up to 5 previous occurrences Data which are older than the 5th previous occurrence are erased In addition data on the temperature of each sensor room temperature indoor heat exchanger outdoor heat exchanger outdoor air temperature discharge pipe remote controller information operation switching fan speed switching are recorded when trouble occurs so more detailed...

Page 60: ...VZLWFKLQJ 0 872 2 0 872 LVSOD V WKH UHDVRQ IRU VWRSSLQJ GLVSOD LQ WKH SDVW HUURU FRGH LVSOD V WKH URRP WHPSHUDWXUH VHQVRU WHPSHUDWXUH DW WKH WLPH WKH HUURU FRGH ZDV GLVSOD HG LQ WKH SDVW LVSOD V WKH LQGRRU KHDW H FKDQJHU VHQVRU WHPSHUDWXUH DW WKH WLPH WKH HUURU FRGH ZDV GLVSOD HG LQ WKH SDVW LVSOD V WKH UHPRWH FRQWUROOHU LQIRUPDWLRQ DW WKH WLPH WKH HUURU FRGH ZDV GLVSOD HG LQ WKH SDVW LVSOD V WKH ...

Page 61: ...on for the stop stop code 2 times previous when the air conditioner was stopped by protective stop control Displays the reason for the stop stop code 3 times previous when the air conditioner was stopped by protective stop control Displays the reason for the stop stop code 4 times previous when the air conditioner was stopped by protective stop control Displays the reason for the stop stop code 5 ...

Page 62: ... sensor is abnormal 38 8 time flash Outdoor unit s fan motor is abnormal 48 8 time flash Current safe 58 8 time flash Connection lines between the indoor and outdoor units are faulty 61 1 time flash Serial transmission error 62 2 time flash Discharge pipe sensor is abnormal anomalous stop 39 9 time flash Rotor lock 60 OFF 5 times 3 times 3 times 3 times 2 times Number of flashes when in service mo...

Page 63: ... controller information tables 2SHUDWLRQ VZLWFKLQJ RUN light Operation switching Display pattern when in service mode Operation switching when there is an abnormal stop 0 1 2 4 3 AUTO DRY COOL FAN HEAT DQ VSHHG VZLWFKLQJ TIMER light Fan speed switching Display pattern when in service mode Fan speed switching when there is an abnormal stop 0 2 3 4 6 7 AUTO HI MED LO HI POWER ECONO I QR GDWD DUH UHF...

Page 64: ...26 16 6 6 16 26 36 46 56 66 76 86 96 57 47 37 27 17 7 7 17 27 37 47 57 67 77 87 97 58 48 38 28 18 8 8 18 28 38 48 58 68 78 88 98 59 49 39 29 19 9 9 19 29 39 49 59 69 79 89 99 No does not sound I QR GDWD DUH UHFRUGHG HUURU FRGH LV QRUPDO WKH GLVSOD IRU HDFK VHQVRU EHFRPHV DV VKRZQ EHORZ Sensor name Room temperature sensor Indoor heat exchanger sensor Outdoor air temperature sensor Outdoor heat exch...

Page 65: ...32 12 12 32 52 72 92 112 132 54 34 14 14 34 54 74 94 114 134 56 36 16 16 36 56 76 96 116 136 58 38 18 18 38 58 78 98 118 138 No does not sound I QR GDWD DUH UHFRUGHG HUURU FRGH LV QRUPDO WKH GLVSOD IRU HDFK VHQVRU EHFRPHV DV VKRZQ EHORZ Sensor value displayed when the error code is normal 64ºC DPSOH LVFKDUJH SLSH WHPSHUDWXUH Q WKH FDVH RI GLVFKDUJH SLSH GDWD PXOWLSO WKH UHDGLQJ YDOXH E HORZ 0 5 se...

Page 66: ... 63 11 SRK T 118 09 SRK DB 087D Service data record form 57 ...

Page 67: ...70 0 10 Discharge pipe sensor temperature characteristics Indoor fan motor error Broken sensor wire connector poor connection 0 0 20 40 60 80 100 120 135 20 40 60 80 100 120 140 160 180 Temperature C Resistance k Defective fan motor connector poor connection defective indoor PCB 69 for the fan motor and indoor PCB check proc Power supply reset Is it normalized Malfunction by temporary noise Replac...

Page 68: ...circuit Compressor output is open phase Outdoor PCB is faulty Service valve is closed EEV is faulty Compressor faulty Current safe stop Overload operation compressor lock overcharge 73 70 DXC09 12 1 703Ω U V V W U W or more at 20ºC DXC18 1 417Ω U V 1 392Ω V W 1 435Ω U W or more at 20ºC ...

Page 69: ... 66 11 SRK T 118 09 SRK DB 087D Over heat of compressor Gas shortage defective discharge pipe sensor Error of signal transmission Wiring error including power cable defective indoor outdoor PCB 64 ...

Page 70: ...age 65 Outdoor fan motor error Defective fan motor connector poor connection defective outdoor PCB See pages 73 for the fan motor and outdoor PCB check proc After making sure the fan motor and outdoor PCB are nor Power supply reset Is it normalized Malfunction by temporary noise Replace fan motor If the error persists after replacing the fan motor replace the outdoor PCB the fan motor and outdoor ...

Page 71: ... Humidity sensor 1 Cooling Heating Humidity sensor operation Failure mode Control input circuit resding Air conditioning system operation See page 65 Note 1 DXK12 18ZJ S only 09 SRK DB 087D 9 Checking the indoor electrical equipment a Indoor PCB check procedure b Outdoor unit Is there voltage between terminal blocks and AC 220 230 240 V Indoor electrical components are normal Is the voltage betwee...

Page 72: ... out 3 15 A YES YES YES NO NO NO b Indoor unit fan motor check procedure 1 Indoor PCB output check 2 Fan motor resistance check FMI DC15V Indoor PCB DC 308 336V DC several V 4 6 V CNU GND Blue Yellow White Black Red Heat exchanger sensor Cooling Heating Ourdoor air temperature sensor Cooling Heating Discharge pipe sensor All modes Measuring point Resistance when normal Measuring point Resistance w...

Page 73: ...he compressor system burns wiring mistakes etc If no problems are found check the output of the power transistor 2 Output inspection procedure Disconnect the terminals for the compresseor If an output such as the one shown in the figure on the below can be measured the power transistor and the circuit board for the outdoor unit are normal Example RUN light ON TIMER light 2 time flash Measure in th...

Page 74: ... 71 11 SRK T 118 09 SRK DB 087D 11 Outdoor unit inspection points DXC09ZJ S 12ZJ S 73 73 64 ...

Page 75: ...l inspection 1 to 2 AC 220 230 240V 2 to 3 Normal if the voltage oscillates between DC 0 and approx 20V CAUTION HIGH VOLTAGE High voltage is produced in the control box Don t touch electrical parts in the control box for 5 minutes after the unit is stopped Color symbol L to N AC 220 230 240V Model DXC18ZJ S Outdoor unit M T2 T1 S BK WH RD V W U PCB ASSY MAIN M M R TRANSISTOR POWER CIRCUIT SWITCHIN...

Page 76: ...DQ PRWRU HUURU LV GHWHFWHG GLDJQRVH ZKLFK RI WKH RXWGRRU XQLW IDQ PRWRU RU RXWGRRU 3 LV GHIHFWLYH LDJQRVH WKLV RQO DIWHU FRQ UPLQJ WKDW WKH LQGRRU XQLW LV QRUPDO 2XWGRRU 3 RXWSXW FKHFN 7XUQ RII WKH SRZHU LVFRQQHFW WKH RXWGRRU XQLW IDQ PRWRU FRQQHFWRU 1 1 KHQ WKH LQGRRU XQLW LV RSHUDWHG E LQVHUWLQJ WKH SRZHU VXSSO SOXJ DQG SUHVVLQJ 21 WKH EDFNXS VZLWFK IRU PRUH WKDQ VHFRQGV LI WKH YROWDJH RI SLQ 1R...

Page 77: ...a nipper or knife and grind burrs with a file etc Install the lower case to the flat wall with attached two wooden screws Connect the remote controller co terminal block Connect the terminal of remote c with the terminal of indoor unit X X and Y are no polarity Wiring route is as shown in the rig depending on the pulling out dire The wiring inside the remote cont The sheath should be peeled off Th...

Page 78: ...nnect the remote controller cord to the terminal block Connect the terminal of remote controller X Y with the terminal of indoor unit X Y X and Y are no polarity Wiring route is as shown in the right diagram depending on the pulling out direction The wiring inside the remote controller case should be within 0 3mm2 recommended to 0 5mm2 The sheath should be peeled off inside the remote controller c...

Page 79: ...er three seconds The indication changes to FUNCTION SET 2 Press button once and change to the TEMP RANGE indication 3 Press SET button and enter the temperature range setting mode 4 Select UPPER LIMIT or LOWER LIMIT by using button 5 Press SET button to fix 6 When UPPER LIMIT is selected valid during heating Press SET button to fix Indication example UPPER 26 C Displayed for two seconds After the ...

Page 80: ...stop position in the four The louver can stop at any position In normal working indication indoor unit temperature is indicated instead of airflow Only the master remote controller can be indicated Heating preparation indication should not be indicated Temperature indication is by degree C Temperature indication is by degree F ON OFF button finished Start Stop air conditioner and press SET and MOD...

Page 81: ...crease in return air temperature of indoor unit To be reset producing 1 5 C increase in return air temperature of indoor unit To be reset producing 2 0 C increase in return air temperature of indoor unit When heating thermostat is OFF to be operated with low fan speed or with ultra low fan speed in case of some models When heating thermostat is OFF to be operated with set fan speed When heating th...

Page 82: ...he FUNCTION SET will be displayed Press SET button Selecct FUNCTION remote controller function or I U FUNCTION indoor unit function Operation message Function description setting description Function No Fixing button Finishing button 7 2 1 6 Starting button Previous screen button Indoor unit selection button Press SET button 6 DATA LOADING Indication with blinking Display is changed to 01 GRILLE S...

Page 83: ... an electric shock fire and sersonal injury Warnings Warning Always go along these instruction Safety precautions Before use please read these Safety Precautions thoroughly before installation All the cautionary items mentioned below are important safety related items to be taken into consideration so be sure to observe them at all times Incorrect installation could lead to serious consequences su...

Page 84: ...ly 1 3m from the indoor unit Be sure not to extend the connection cable on site If the connection cable is extended malfunction may occur Fix the interface on the wall pillar or the like Cut out the punch outs for the connection cables running into the casing with cutter Recess the electrical box locally procured and connection cables in the wall Mount the lower casing of the interface to the elec...

Page 85: ...re round cable Vinyl insulated wirevinyl sheathed cable for control It is available to operate the air conditioning unit and to monitor the operation status with the external control unit remote display by sending the input output signal through CNT connector on the indoor control PCB Connect a external remote control unit locally procured to CNT terminal In case of the pulse input switch OFF the ...

Page 86: ...should be used for the wiring of wired remote controller C Maximum length of wiring is 600m If the length of wiring exceeds 100m change the size of cable as mentioned below 100m 200m 0 5mm2 x 2 core 300m or less 0 75mm2 x 2 core 400m or less 1 25mm2 x 2 core 600m or less 2 0mm2 x 2 core However cable size connecting to the terminal of wired remote controller should not exceed 0 5mm2 Accordingly if...

Page 87: ... 84 11 SRK T 118 11 3 Super link E board SC ADNA E F SL2NA E and SL3N AE BE to control ...

Page 88: ... 85 11 SRK T 118 ...

Page 89: ... 86 11 SRK T 118 ...

Page 90: ... 87 PARTS LIST INDOOR UNIT DXK09ZJ S DXK12ZJ S DXK18ZJ S OUTDOOR UNIT DXC09ZJ S DXC12ZJ S DXC18ZJ S ...

Page 91: ... 88 CRAE0221 30 35 5 7 28 8 26 25 32 29 36 34 6 18 18 17 19 24 23 22 21 20 19 16 14 12 15 15 15 11 13 9 10 6 3 2 4 35 4 31 27 33 1 PANEL FAN ASSY ...

Page 92: ...5 LOUVER 5 1 1 2 2 14 RLA129A009 PLATE CONNECTING L 1 1 1 1 2 15 RKW935C200 COLLAR 6 16 RLA129A013 BRACKET MOTOR L 1 1 1 1 2 17 RLA129A014 BRACKET MOTOR R 1 1 1 1 2 18 RKY144A004 CRANK C 2 1 1 1 2 19 SSA512T096 MOTOR STEPPING 2 1 1 1 2 20 21 RLA129A018 BOX ASSY GEAR 1 1 1 1 2 21 SSA512T049 MOTOR STEPPING 1 1 1 1 2 22 RKS504A100M HARNESS ASSY 1 1 1 1 2 FOR FLAP MOTOR 23 RKS504A100N HARNESS ASSY 1 1...

Page 93: ... 90 CRAE0222 26 20 1 21 28 17 11 12 22 23 25 13 24 24 2 14 15 19 18 16 9 6 10 27 29 31 30 4 5 7 8 3 HEAT EXCH CONTROL ...

Page 94: ...R BEND 1 14 SSA551A223F SENSOR ASSY 1 1 1 2 4 15 SSA561B702B BLOCK TERMINAL 1 1 1 2 2 T1 16 SSA554D183 KILLER NOISE 1 17 19 RLA505A001BN PWB ASSY 1 2 2 4 8 18 SSA555B050C VARISTOR 1 1 1 1 2 Z1 19 SSA564A132 FUSE CURRENT 1 1 1 1 2 F1 3 15A 20 RLA503A001 DISPLAY ASSY 1 1 1 2 4 21 RLA505A003 PWB ASSY DISPLAY 1 2 2 4 8 22 23 RLA132A008 LID ASSY CONTROL 1 22 RLA132A007 LID CONTROL 1 23 RLA132A005 COVER...

Page 95: ... 92 CRAE0221 30 35 5 7 28 8 26 25 32 29 36 34 6 18 18 17 19 24 23 22 21 20 19 16 14 12 15 15 15 11 13 9 10 6 3 2 4 35 4 31 27 33 1 PANEL FAN ASSY ...

Page 96: ...5 LOUVER 5 1 1 2 2 14 RLA129A009 PLATE CONNECTING L 1 1 1 1 2 15 RKW935C200 COLLAR 6 16 RLA129A013 BRACKET MOTOR L 1 1 1 1 2 17 RLA129A014 BRACKET MOTOR R 1 1 1 1 2 18 RKY144A004 CRANK C 2 1 1 1 2 19 SSA512T096 MOTOR STEPPING 2 1 1 1 2 20 21 RLA129A018 BOX ASSY GEAR 1 1 1 1 2 21 SSA512T049 MOTOR STEPPING 1 1 1 1 2 22 RKS504A100M HARNESS ASSY 1 1 1 1 2 FOR FLAP MOTOR 23 RKS504A100N HARNESS ASSY 1 1...

Page 97: ... 94 CRAE0223 27 21 22 29 17 11 12 23 24 26 13 20 25 25 2 14 15 19 18 16 9 6 10 28 30 32 31 4 5 7 8 3 1 HEAT EXCH CONTROL ...

Page 98: ...3F SENSOR ASSY 1 1 1 2 4 15 SSA561B702B BLOCK TERMINAL 1 1 1 2 2 T1 16 SSA554D183 KILLER NOISE 1 17 19 RLA505A001BP PWB ASSY 1 2 2 4 8 18 SSA555B050C VARISTOR 1 1 1 1 2 Z1 19 SSA564A132 FUSE CURRENT 1 1 1 1 2 F1 3 15A 20 SSA551B017A SENSOR HUMIDITY 1 1 1 2 4 21 RLA503A001 DISPLAY ASSY 1 1 1 2 4 22 RLA505A003 PWB ASSY DISPLAY 1 2 2 4 8 23 24 RLA132A008 LID ASSY CONTROL 1 23 RLA132A007 LID CONTROL 1...

Page 99: ... 96 CRAE0221 30 35 5 7 28 8 26 25 32 29 36 34 6 18 18 17 19 24 23 22 21 20 19 16 14 12 15 15 15 11 13 9 10 6 3 2 4 35 4 31 27 33 1 PANEL FAN ASSY ...

Page 100: ...5 LOUVER 5 1 1 2 2 14 RLA129A009 PLATE CONNECTING L 1 1 1 1 2 15 RKW935C200 COLLAR 6 16 RLA129A013 BRACKET MOTOR L 1 1 1 1 2 17 RLA129A014 BRACKET MOTOR R 1 1 1 1 2 18 RKY144A004 CRANK C 2 1 1 1 2 19 SSA512T096 MOTOR STEPPING 2 1 1 1 2 20 21 RLA129A018 BOX ASSY GEAR 1 1 1 1 2 21 SSA512T049 MOTOR STEPPING 1 1 1 1 2 22 RKS504A100M HARNESS ASSY 1 1 1 1 2 FOR FLAP MOTOR 23 RKS504A100N HARNESS ASSY 1 1...

Page 101: ... 98 CRAE0223 27 21 22 29 17 11 12 23 24 26 13 20 25 25 2 14 15 19 18 16 9 6 10 28 30 32 31 4 5 7 8 3 1 HEAT EXCH CONTROL ...

Page 102: ...223F SENSOR ASSY 1 1 1 2 4 15 SSA561B702B BLOCK TERMINAL 1 1 1 2 2 T1 16 SSA554D183 KILLER NOISE 1 17 19 RLA505A001BR PWB ASSY 1 2 2 4 8 18 SSA555B050C VARISTOR 1 1 1 1 2 Z1 19 SSA564A132 FUSE CURRENT 1 1 1 1 2 F1 3 15A 20 SSA551B017A SENSOR HUMIDITY 1 1 1 2 4 21 RLA503A001 DISPLAY ASSY 1 1 1 2 4 22 RLA505A003 PWB ASSY DISPLAY 1 2 2 4 8 23 24 RLA132A008 LID ASSY CONTROL 1 23 RLA132A007 LID CONTROL...

Page 103: ... 100 CRBE0323 6 13 11 18 12 15 16 3 17 14 2 4 9 8 7 5 1 8 19 8 10 PANEL FAN ASSY ...

Page 104: ...UTLET 1 1 1 2 3 6 SSA944B036B HANDLE 1 7 RCV142A001 COVER TB 1 1 1 2 4 8 SSA913A034F SCREW TAP 27 4 8 9 SSA913A034G SCREW TAP 1 4 12 10 SSA913A008F SCREW TAP 1 4 10 11 RCV116A006 BRACKET ASSY 1 12 SSA512T094 MOTOR DC 1 1 1 1 2 13 RCV116A003 BRACKET MOTOR U 1 14 RCV141A002A PLATE BAFFLE 1 15 SSA431B253 PROPELLER 1 1 1 2 4 16 SSA914B007AC NUT TH 1 17 RCV111A001 BASE ASSY 1 1 1 1 2 18 W011D04X008 TAP...

Page 105: ... 102 CRBE0339 21 3 7 6 15 16 11 12 17 2 9 10 8 14 13 5 22 25 23 26 27 CONTROL ASSY 24 30 31 24 19 4 20 28 1 18 24 29 GAS LIQ HEAT EXCH CONTROL ...

Page 106: ...SA382F013K COIL ASSY SOLENOID 1 1 1 1 2 FOR 20S 14 SSA382F210AY COIL SOLENOID 1 1 1 1 2 FOR EEV 15 AHT201A864DR COMPRESSOR ASSY 1 1 2 3 8 16 SSA914C013A NUT FLANGE 3 17 SSA941C346A CUSHION RUBBER 3 18 RSA932C004 GASKET COVER 1 19 RSA947K005 COVER TERMINAL 1 1 1 2 4 20 SSA914C016 NUT FLANGE 1 21 RCV505A101B PWB ASSY 1 2 2 4 8 22 RCV011G002AA LABEL WIRING 1 23 SSA561B723 BLOCK TERMINAL 1 1 1 2 2 24 ...

Page 107: ... 104 CRBE0323 6 13 11 18 12 15 16 3 17 14 2 4 9 8 7 5 1 8 19 8 10 PANEL FAN ASSY ...

Page 108: ...UTLET 1 1 1 2 3 6 SSA944B036B HANDLE 1 7 RCV142A001 COVER TB 1 1 1 2 4 8 SSA913A034F SCREW TAP 27 4 8 9 SSA913A034G SCREW TAP 1 4 12 10 SSA913A008F SCREW TAP 1 4 10 11 RCV116A006 BRACKET ASSY 1 12 SSA512T094 MOTOR DC 1 1 1 1 2 13 RCV116A003 BRACKET MOTOR U 1 14 RCV141A002A PLATE BAFFLE 1 15 SSA431B253 PROPELLER 1 1 1 2 4 16 SSA914B007AC NUT TH 1 17 RCV111A001 BASE ASSY 1 1 1 1 2 18 W011D04X008 TAP...

Page 109: ... 106 CRBE0339 21 3 7 6 15 16 11 12 17 2 9 10 8 14 13 5 22 25 23 26 27 CONTROL ASSY 24 30 31 24 19 4 20 28 1 18 24 29 GAS LIQ HEAT EXCH CONTROL ...

Page 110: ...SA382F013K COIL ASSY SOLENOID 1 1 1 1 2 FOR 20S 14 SSA382F210AY COIL SOLENOID 1 1 1 1 2 FOR EEV 15 AHT201A864DR COMPRESSOR ASSY 1 1 2 3 8 16 SSA914C013A NUT FLANGE 3 17 SSA941C346A CUSHION RUBBER 3 18 RSA932C004 GASKET COVER 1 19 RSA947K005 COVER TERMINAL 1 1 1 2 4 20 SSA914C016 NUT FLANGE 1 21 RCV505A101B PWB ASSY 1 2 2 4 8 22 RCV011G002AA LABEL WIRING 1 23 SSA561B723 BLOCK TERMINAL 1 1 1 2 2 24 ...

Page 111: ... 108 CRBE0324 9 13 15 16 14 17 7 6 4 19 1 8 3 11 5 18 10 10 10 2 12 PANEL FAN ASSY ...

Page 112: ...3 6 RCT132A002 COVER ASSY SERVICE 1 1 1 1 2 7 SSA944B036B HANDLE 1 8 RCT131A001 GUARD FIN 1 9 RCT142A004 COVER TB 1 1 1 2 4 10 SSA913A034F SCREW TAP 25 4 8 11 SSA913A034G SCREW TAP 1 4 12 12 SSA913A008F SCREW TAP 1 4 10 13 RCT116A003 BRACKET MOTOR 1 14 SSA512T091A MOTOR DC 1 1 1 1 2 15 RCT141A001A PLATE BAFFLE 1 1 1 2 4 16 SSA431B250 PROPELLER 1 17 SSA914B007AC NUT TH 1 18 RCT111A001AG BASE ASSY 1...

Page 113: ... 110 CRBE0326 10 11 7 8 6 30 29 32 29 33 CONTROL ASSY 21 13 3 4 2 20 19 31 16 34 17 1 12 9 5 GAS 18 29 14 15 LIQ 24 23 27 26 25 28 22 HEAT EXCH CONTROL ...

Page 114: ...EV 14 RCT154D004 INSULATION COMP 1 15 RCV154D003 INSULATION COMP 1 16 RSA201A036 COMPRESSOR ASSY 1 1 2 3 8 17 SSA914C013A NUT FLANGE 2 18 SSA941C354 CUSHION RUBBER 3 19 RSA932C004 GASKET COVER 1 20 RSA947K005 COVER TERMINAL 1 1 1 2 4 21 SSA914C016 NUT FLANGE 1 22 RCT505A005AA PWB ASSY MAIN 1 2 2 4 8 23 RCT505A004A PWB ASSY SUB 1 2 2 4 8 24 RCT011G002AB LABEL WIRING 1 25 SSA561B665 BLOCK TERMINAL 1...

Page 115: ...NVERTER RESIDENTIAL AIR CONDITIONERS Copyright MITSUBISHI HEAVY INDUSTRIES LTD Because of our policy of continuous improvement we reserve the right to make changes in all specifications without notice C ...

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