Mitsubishi Electric DXK09ZJ-S Technical Manual
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Mitsubishi Electric DXK09ZJ-S Technical Manual

Inverter wall mounted type residential air-conditioner
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Manual No.'11•SRK-T-118
RESIDENTIAL 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

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Summary of Contents for Mitsubishi Electric DXK09ZJ-S

  • Page 1 Manual No.'11•SRK-T-118 RESIDENTIAL 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...
  • Page 3 TECHNICAL MANUAL...

  • Page 4: Table Of Contents

    '11 • SRK-T-118 CONTENTS 1. SPECIFICATIONS ..................2. EXTERIOR DIMENSIONS ................. (1) Indoor units ..................(2) Outdoor units ..................(3) Remote controller ................3. ELECTRICAL WIRING ................11 (1) Indoor units ..................11 (2) Outdoor units ..................12 4. NOISE LEVEL ....................
  • Page 5 '11 • SRK-T-118 (7) Inspection procedures corresponding to detail of trouble ....64 (8) Phenomenon observed after shortcircuit, wire breakage on sensor ..68 (9) Checking the indoor electrical equipment ........... 69 (10) How to make sure of wireless remote controller ........

  • Page 6: Specifications

    '11 • SRK-T-118 1. SPECIFICATIONS RoHS DXK09ZJ-S Model Item Indoor unit DXK09ZJ-S Outdoor unit DXC09ZJ-S RWA000Z225...
  • Page 7 '11 • SRK-T-118 RoHS DXK12ZJ-S Model Item Indoor unit DXK12ZJ-S Outdoor unit DXC12ZJ-S RWA000Z225...

  • Page 8: Exterior Dimensions

    '11 • SRK-T-118 Adapted to RoHS directive DXK18ZJ-S Model Item Indoor unit DXK18ZJ-S Outdoor unit DXC18ZJ-S Cooling capacity (1) 5000 (1600 (Min.)~5500 (Max.)) Heating capacity (1) 5800 (1600 (Min.)~6600 (Max.)) Power supply 1 Phase, 220~240 V, 50Hz Cooling 1.55 (0.40~2.20) Power consumption Heating...
  • Page 9 Symbol Content 14.5 09, 12 9.52 3 8" Flare Gas piping Model 12.7 1 2" Flare Liquid piping 6.35 1 4" Flare Hole on wall for right rear piping Hole on wall for left rear piping Drain hose VP16 Outlet for wiring Outlet for piping on both side Wireless remote controller Outlet for down piping...
  • Page 10 Notes （1）It must not be surrounded by walls on the four sides. 390.6 50.6 （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.
  • Page 11 Notes （1） It must not be surrounded by walls on the four sides. Symbol Content （2） The unit must be fixed with anchor bolts. An anchor bolt must not Service valve connection（gas side） φ12.7（1／2"）（Flare） protrude more the 15mm. Service valve connection（liquid side） φ6.35（1／4"）（Flare）...

  • Page 12: Remote Controller

    '11 • SRK-T-118 (3) Remote controller (a) Wireless remote controller Unit: mm 17.3...
  • Page 13 '11 • SRK-T-118 (b) Wired remote controller (option parts) Wiring outlet Cut off the upper thin part of remote control lower case with a nipper or knife, and grind burrs with a file etc. Exposed mounting In case of pulling out In case of pulling out from upper left from center...

  • Page 14: Outdoor Units

    Item Description CNE-CNY Connector Fan motor Flap motor Louver motor Humidity sensor Room temp. sensor Heat exch. sensor Diode stack Fuse PRINTED Terminal block CIRCUIT Varistor BOARD HEAT EXCHANGER Mark Color 250V 3.15A Black Blue White Yellow Yellow Green HEAT EXCHANGER DISPLAY WIRELESS...
  • Page 15 TO INDOOR UNIT POWER WIRES SIGNAL WIRE PWB ASSY POWER SOURCE POWER 1 220 240V 50Hz 1 220V 60Hz TRANSISTOR 250V 15A R. IN NOISE 250V 20A FILTER S. IN F3 250V 1A CIRCUIT CNFAN 250V 10A TERMINAL BLOCK SWITCHING POWER CIRCUIT CN20S CNTH...
  • Page 16 POWER SOURCE 1～220ｰ240V 50Hz／1～220V 60Hz TERMINAL PWB ASSY （MAIN） PWB ASSY （SUB） BLOCK POWER TRANSISTOR FUSE （BK） （RD） 250V 20A （BK） ACTIVE 250V 20A 250V 20A （WH） （WH） FILTER （WH） （WH） 3～ UNIT （BK） （BR） （Y／G） （WH） （Y／G） TERMINAL （BK） CNMAIN CNSUB BLOCK...

  • Page 17: Noise Level

    '11 • SRK-T-118 4. NOISE LEVEL Model DXK09ZJ-S Condition ISO-T1, JIS C9612 (Indoor Unit) Model DXK09ZJ-S Cooling 34 dB(A) Noise Level Heating 39 dB(A) × ..Cooling  Heating 1000 2000 4000 8000 Mid Octave Band frequency (Hz) (Outdoor Unit) Model...
  • Page 18 '11 • SRK-T-118 Model DXK12ZJ-S Condition ISO-T1, JIS C9612 (Indoor Unit) Model DXK12ZJ-S Noise Cooling 45 dB(A) Level Heating 42 dB(A) × ..Cooling  Heating 1000 2000 4000 8000 Mid Octave Band frequency (Hz) (Outdoor Unit) Model DXC12ZJ-S Cooling 50 dB(A) Noise Level Heating...
  • Page 19 '11 • SRK-T-118 Model DXK18ZJ-S Condition ISO-T1,JIS C9612 (Indoor Unit) Model DXK18ZJ-S Cooling 46 dB(A) Noise Level Heating 45 dB(A) × ..Cooling Heating (Outdoor Unit) Model DXC18ZJ-S Cooling 51 dB(A) Noise Level Heating 53 dB(A) × ..Cooling Heating 1000 2000 4000...

  • Page 20: Piping System

    '11 • SRK-T-118 5. PIPING SYSTEM Models DXK09ZJ-S, 12ZJ-S Cooling cycle Heating cycle Indoor unit Outdoor unit Outdoor air Flare temp. sensor connection Service valve (TH) (Gas) Discharge pipe temp. sensor Gas pipie Check joint Muffler Heat (TH) (φ .) Room temp.

  • Page 21: Range Of Usage & Limitations

    '11 • SRK-T-118 6. RANGE OF USAGE & LIMITATIONS RANGE OF USAGE & LIMITATIONS Models DXK09, 12ZJ-S DXK18ZJ-S Item Cooling operation : Approximately 18 to 32℃ D.B. Indoor return air temperature Heating operation : Approximately 10 to 27℃ D.B. (Upper, lower limits) (Refer to the selection chart) Cooling operation : Approximately -15 to 46℃...
  • Page 22 '09•SRK-DB-087D '11 • SRK-T-118 (2) Correction of cooling and heating capacity in relation to one way length of refrigerant piping Piping length [m] Cooling 0.99 0.975 0.965 0.95 Heating (3) Correction relative to frosting on outdoor heat exchanger during heating Air inlet temperature of 5 or more outdoor unit in °C WB...

  • Page 23: Capacity Tables

    '11 • SRK-T-118 7. CAPACITY TABLES Model DXK09ZJ-S Cool Mode Heat Mode Indoor air temp Outdoor Air flow Outdoor Air flow air temp. Indoor air temp ℃DB ℃DB ℃DB ℃DB ℃DB ℃DB ℃DB air temp. 16℃ DB 18℃ DB 20℃ DB 22℃ DB 24℃ DB ℃WB...

  • Page 24: Electrical Wiring

    (1) Installation of indoor unit R410A REFRIGERANT USED WARNING Models DXK09ZJ-S, 12ZJ-S, 18ZJ-S INSTALLATION MANUAL FOR INDOOR UNIT • Do not vent R410A into the atmosphere : R410A is a fluorinated • Do not perform any change of protective device itself or its setup greenhouse gas, covered by the Kyoto Protocol with Groval condition.

  • Page 25: Selection Of Installation Location

    seriously affect the user’s health and safety. This can also cause the insulation and over-current etc. • Locations where an equipment affected by high harmonics is placed (TV • Do not touch any refrigerant pipes with your hands when the corrosion of the indoor unit and a resultant unit failure or refrigerant leak.

  • Page 26: Connection Of Refrigerant Pipings

    RLA012A012B Fixing of indoor unit Since this air conditioner has been designed to collect dew drops on the rear Gutter surface to the drain pan, do not attach the power cord above the gutter. • How to remove the indoor unit from the installation board Latch (2 locations) Installation Steps Wall...
  • Page 27 illustration, hold the panel at both ends of lower Tighten the 2 set screws. part, lower it downward slowly, then push it Fit the air filter. slightly until the latch works. Fit the air inlet panel. Set screws ELECTRICAL WIRING WORK Installing the air-cleaning filters The screws of the lid and the terminal cover are tightened securely.

  • Page 28: Installation Of Outdoor Unit

    (2) Installation of outdoor unit RWC012A030C Notabil Models DXC09ZJ-S, 12ZJ-S INSTALLATION MANUAL FOR OUTDOOR UNIT Model 09, 12 ● Do not A cylind R410A REFRIGERANT USED ● A unit d The pro • This installation manual deals with outdoor units and general installation specifications only. For indoor units, refer to the respective installation manuals supplied with the units. Accordi •...
  • Page 29 • Ensure that no air enters in the refrigerant circuit when the unit is • Do not bundling, winding or processing for the power cord. Or, do not • Do not perform any change of protective device itself or its setup 1.Pla installed and removed.
  • Page 30 Notabilia as a unit designed for R410A ● Do not use any refrigerant other than R410A. R410A will rise to pressure about 1.6 times higher than that of a conventional refrigerant. A cylinder containing R410A has a pink indication mark on the top. USED ●...
  • Page 31 ● Install the unit in a level area. (With a gradient of 5 mm or less.) Improper installation can result in a compressor failure, broken piping within the unit and abnormal noise generation. 2.Install so the direction of the air from the blowing outlet will be perpendicular to the direction of the wind.
  • Page 32 Use polychloroprene sheathed flexible cord (cod its form. Ground the unit. Do not connect the grounding wire to ● Flare connection is used between the unit and refrigerant pipe. Flare a pipe after engaging a Copper pipe protrusion for flaring : B ●...
  • Page 33 or personal injury from burns because their surface can reach quite a high temperature due to discharged gas flowing inside during a heating operation. Wires for connecting indoor INSTALLATION TEST Exterior tape Wrap indoor units’ flare joints with heat insulating parts (pipe cover) for heat insulation (both gas and liquid pipes). ●...
  • Page 34 Indoor unit ● The specifications shown in the above table are for units without heaters. For units with heaters, refer to Grounding terminal the installation instructions or the construction instructions of the indoor unit. ○ Please be sure to carry out D-type (type III) ●...

  • Page 35: Installation Manual For Outdoor Unit

    RWC012A032B Notabilia as a unit INSTALLATION MANUAL FOR OUTDOOR UNIT Model DXC18ZJ-S • Do not use any refrigeran Model 09, 12, 18 A cylinder containing R41 R410A REFRIGERANT USED • A unit designed for R410 The processed dimension • This installation manual deals with outdoor units and general installation specifications only. For indoor units, refer to the respective installation manuals supplied with the units. Accordingly, you are requ •...
  • Page 36 4) Caution about This may cause fire or electric shock due to defecting contact, defecting insulation personal injury due to entrapment, burn or electric shocks. and over-current etc. (1) If the unit is installe The bottom plate o CAUTION 1 Install the unit o •...
  • Page 37 ime. 1. HAULAGE AND INSTALLATION (Take particular care in carrying in or moving the unit, and always perform such an operation with two or more persons.) When a unit is hoisted with slings for haulage, take into consideration the offset of its gravity center position. CAUTION If not properly balanced, the unit can be thrown off-balance and fall.
  • Page 38 • Refer to the above illustrations for information regarding concrete foundations. r fire. • Install the unit in a level area. (With a gradient of 5mm or less.) Improper installation can result in a compressor failure, broken piping within the unit and abnormal noise generation. damaged cause 2.
  • Page 39 adjusting the measurement of protrusion B with a protrusion control gauge. ø9.52 side cover is Electrical installation work • The pipe should be anchored every 1.5m or less to isolate the vibration. ø12.7 tightened securely. • Do not use any supply c •...
  • Page 40 additionally. NOTE Put down the refrigerant volume calculated from the pipe length onto the caution label attached on the service panel. • For an installation measuring 15m or shorter in pipe length, please charge the refrigerant volume charged for shipment at the factory, when you recharge refrigerant after servicing etc. INSTALLAT 8) Heating and condensation prevention Band (accessory)
  • Page 41 • When cables are connected, make sure that all electrical components within the electrical component box are free of loose connector coupling or (yellow/green) terminal connection and then attach the cover securely. (Improper cover attachment can result in malfunctioning or a failure of the unit, if water Section of copper wire (mm penetrates into the box.) •...

  • Page 42: Outline Of Operation Control By Microcomputer

    '09•SRK-DB-087D '11 • SRK-T-118 Reference 9. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 1 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER (1) Operation control function by remote controller 1. Operation control function by remote controller Operation section FAN SPEED button OPERATION MODE select button Each time the button is pressed, the Each time the button pressed, the display is switched over in turn.

  • Page 43: Unit On/Off Button

    '09•SRK-DB-087D '11 • SRK-T-118 (2) Unit ON/OFF button (a) Operation (b) Details of operation Function Indoor temperature Fan speed Flap/Louver Timer Switch setting operation mode Cooling Thermal dry Heating Unit ON/OFF button (3) Auto restart function Jumper wire (JA1) Jumper wire (JA2) (4) Custom cord switching procedure (a) Modifying the indoor printed circuit board (b) Modifying the wireless remote controller...

  • Page 44: Flap And Louver Control

    '09•SRK-DB-087D '11 • SRK-T-118 (5) Flap and louver control (a) Flap (Flap stopped) (Swing) Angle of Flap from Horizontal Remote controller display COOL , DRY, FAN Approx. 10° Approx. 25° Approx. 40° Approx. 50° Approx. 60° Approx. 25° Approx. 40° Approx.

  • Page 45: D Auto Operation

    '09•SRK-DB-087D '11 • SRK-T-118 (6) 3D auto operation Air flow selection Operation mode AUTO < = Indoor temp. – Setting temp. >5°C Indoor temp. – Setting temp. 5°C At cooling HIGH POWER AUTO < = Setting temp. – Indoor temp. >5°C Setting temp.

  • Page 46: Timer Operation

    '09•SRK-DB-087D '11 • SRK-T-118 (7) Timer operation (a) Comfortable timer setting (ON timer) (b) Sleep timer operation (c) OFF timer operation (8) Installation location setting (a) Setting If the air conditioning unit is running, press the ON/OFF button to stop. Press the AIR FLOW (UP/DOWN) button and the AIR FLOW...

  • Page 47: Outline Of Heating Operation

    ON(HOT KEEP) Indoor fan motor Outdoor fan motor (few minutes ON) 4-way valve (3 minutes ON) (b) Details of control at each operation mode (pattern) 1) Fuzzy operation Model DXK09ZJ-S DXK12ZJ-S DXK18ZJ-S Fan speed 30~115rps 30~115rps 23~106rps Auto 30~115rps 30~115rps...

  • Page 48: Outline Of Cooling Operation

    Thermostat OFF Failure Compressor Indoor fan motor Outdoor fan motor (few minutes ON) (few minutes ON) 4-way valve (b) Detail of control in each mode (Pattern) Fuzzy operation Model DXK09ZJ-S DXK12ZJ-S DXK18ZJ-S Fan speed 20~74rps 20~98rps 23~96rps Auto 20~74rps 20~98rps 23~96rps...

  • Page 49: Protective Control Function

    Dehumidifying Indoor air temperature (˚C) 18.0 Heating '11 • SRK-T-118 Outdoor air temperature (˚C) 1)   When both the indoor and the outdoor air temperatures are in the range “A”, cooling or heating is switched depending on the difference between the setting temperature and the indoor air temperature. When the operation mode has been judged following the change of setting temperature with the remote controller, the hourly judgment of operation mode is cancelled.

  • Page 50: Operating Conditions

    Detail of operation The lower limit of compressor command speed is set to 30 or 40 (model 18 : 29) rps and even if the calculated result '11 • SRK-T-118 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.
  • Page 51 seconds times second times Reset conditions: '11 • SRK-T-118 (e) Heating high pressure control Purpose: Detector: Detail of operation: (Example) Fuzzy After lapse of 20 sec. or over 4rps 8rps After lapse of 20 sec. or over 4rps 8rps Note (1) Value in ( ) are for the model 18. lower limit After lapse of 20 sec.
  • Page 52 that after fuzzy calculation, the speed is kept to 40 rps. However, when the thermo becomes OFF, the speed is reduced to 0 prs. iii) '11 • SRK-T-118 rps. Protective control Normal operation Outdoor air temperature(°C) Reset conditions: • Model 18 When the outdoor air temperature (TH2) is 11ºC or higher continues for 30 seconds while Operating conditions : the compressor command speed other than 0 rps.
  • Page 53 Outdoor air temperature(°C) Reset conditions: '11 • SRK-T-118 • Model 18 Operating conditions: When the outdoor air temperature (TH2) is lower than 4ºC or higher continues for 30 seconds while the compressor command speed is other than 0 rps. The lower limit compressor command speed is change as shown in the figure belo. Detail of operation: Lower limit 29 rps Normal operation...
  • Page 54 Current cut Purpose: Detail of operation: '11 • SRK-T-118 (k) Outdoor unit failure item 1), 2) is satisfied. Once the unit is stopped by this function, ti is not Indoor fan motor protection '09•SRK-DB-087D (m) Serial signal transmission error protection Purpose: Detail of operation: Rotor lock...
  • Page 55 Reset conditions: '11 • SRK-T-118 Heating (model 50 : 0ºC) Operating conditions: Detail of operation: Reset conditions: (model 18 : 2ºC) Refrigeration cycle system protection Starting conditions When 5 minutes have elapsed after the compressor ON or the completion of the defrost control Other than the defrost control 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:...

  • Page 56: Maintenance Data

    '09•SRK-DB-087D '11 • SRK-T-118 Reference Reference 10. MAINTENANCE DATA 2 TROUBLESHOOTING PROCEDURES FOR ELECTRICAL EQUIPMENT (1) Cautions (2) Items to check before troubleshooting (3) Troubleshooting procedure (If the air conditioner does not run at all) Important...

  • Page 57: Troubleshooting Procedure (If The Air Conditioner Runs)

    '09•SRK-DB-087D '11 • SRK-T-118 (4) Troubleshooting procedure (If the air conditioner runs) 56 ~ 62. 56~ 62.

  • Page 58: Self-Diagnosis Table

    '09•SRK-DB-087D '11 • SRK-T-118 (5) Self-diagnosis table Wired Indoor unit display panel remote Description Cause Display (flashing) condition controller TIMER of trouble display light light • Broken heat exchanger sensor When a heat exchanger sensor 1 wire disconnection is detected while 1 time operation is stopped.

  • Page 59: Service Mode (Trouble Mode Access Function)

    '09•SRK-DB-087D '11 • SRK-T-118 (6) Service mode (Trouble mode access function) (a) Explanation of terms Explanation Term The service mode is the mode where service data are displayed by flashing of the display lights Service mode when the operations in item (b) below are performed with the indoor controller. These are the contents of error displays and protective stops which occurred in the past in the air conditioner system.
  • Page 60 '09•SRK-DB-087D '11 • SRK-T-118 1) Self-diagnosis data Remote controller setting Contents of output data Indicates the number of Remote controller setting occasions previous to the present Temperature setting the error display data are from. 1 time previous (previous time) 21ºC 22ºC 2 times previous 23ºC...
  • Page 61 '09•SRK-DB-087D '11 • SRK-T-118 (Example) Remote controller setting Operation Displayed data Fan speed Temperature switching switching setting Displays the reason for the stop (error code) the previous time an error was displayed. 21ºC Displays the reason for the stop (error code) 2 times previous when an error was displayed. 22ºC Cooling 23ºC...
  • Page 62 '09•SRK-DB-087D '11 • SRK-T-118 (c) Error code, stop code table Number of flashes when in service mode Stop coad Error Auto TIMER Error content Cause Occurrence conditions display recovery light Error coad light (10's digit) (1's digit) Normal Can not receive signals for 35 Power supply is faulty.
  • Page 63 '09•SRK-DB-087D '11 • SRK-T-118 (d) Remote controller information tables Display pattern when Display pattern when Fan speed in service mode in service mode Operation switching switching when when there is an there is an RUN light TIMER light abnormal stop abnormal stop (Operation switching) (Fan speed switching)
  • Page 64 '09•SRK-DB-087D '11 • SRK-T-118 (e) Room temperature sensor, indoor heat exchanger sensor, outdoor air temperature sensor, outdoor heat exchanger sensor table Units: °C TIMER light (1’s digit) RUN light (10’s digit) Buzzer sound (sounds for 0.1 second) (does not sound) Sensor value displayed when the error code is normal Sensor name -64ºC...
  • Page 65 '09•SRK-DB-087D '11 • SRK-T-118 Discharge pipe sensor table Units: °C TIMER light (1’s digit) RUN light (10’s digit) Buzzer sound (sounds for 0.1 second) (does not sound) Sensor value displayed when the error code is normal -64ºC 0.1 sec. If the temperature is < 0, the buzzer sounds. If the temperature is≧0, the buzzer does not sound.
  • Page 66 '09•SRK-DB-087D '11 • SRK-T-118 Service data record form...
  • Page 67 '09•SRK-DB-087D '11 • SRK-T-118 (7) Inspection procedures corresponding to detail of trouble Sensor error Broken sensor wire, connector poor connection Sensor temperature characteristics (Room Discharge pipe sensor temperature characteristics temp., indoor heat exchanger temp., out- door heat exchanger temp., outdoor air temp.) - 10 Temperature (˚C)

  • Page 68: Current Cut

    '09•SRK-DB-087D '11 • SRK-T-118 Current cut Compressor lock, Compressor wiring short circuit, Compressor output is open phase, Outdoor PCB is faulty, Service valve is closed, EEV is faulty, Compressor faulty. ＊   ＊ DXC09, 12 : 1.703Ω (U-V, V-W, U-W) or more at 20ºC DXC18 : 1.417Ω...
  • Page 69 '09•SRK-DB-087D '11 • SRK-T-118 Over heat of compressor Gas shortage, defective discharge pipe sensor Error of signal transmission Wiring error including power cable, defective indoor/ outdoor PCB ② ③ ② ③ ① ②...
  • Page 70 '09•SRK-DB-087D '11 • SRK-T-118 Trouble of outdoor unit Insufficient refregerant amount, Faulty power transistor, Broken compressor wire Service valve close, Defective EEV, Defective outdoor PCB ◆       Notes (1) Check coil resistance, see page 65. ． Outdoor fan motor error Defective fan motor, connector poor connection, defective outdoor PCB the fan motor and outdoor...
  • Page 71 '11 • SRK-T-118 Rotor lock Defective compressor, defective Rotor lock Defective compressor, defective outdoor PCB outdoor PCB See page 65. See page 65. (8) Phenomenon observed after shortcircuit, wire breakage on sensor (8) Phenomenon observed after shortcircuit, wire breakage on sensor (a) Indoor unit (a) Indoor unit Phenomenon...
  • Page 72 Cooling Heat exchanger sensor Defrosting is performed for 10 minutes at approx. 45 (models 50 : 35) minutes. Heating Cooling Ourdoor air '11 • SRK-T-118 temperature sensor Defrosting is performed for 10 minutes at approx. 45 (models 50 : 35) minutes. Heating Discharge pipe All modes...
  • Page 73 '09•SRK-DB-087D '11 • SRK-T-118 (c) Power transistor inspection procedure [Use a tester with a needle indicator for the inspection. (Do not use a digital tester. Check in the AC 300 volt range.)] (1) If there is a self-diagnosis display, inspect the compressor system (burns, wiring mistakes, etc.) If no problems are found, check the output of the power transistor.
  • Page 75 Check point of outdoor unit 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 Inspection power transistor Remove the fasten terminal and test output voltage Black Orange Outdoor unit...
  • Page 76 '09•SRK-DB-087D '11 • SRK-T-118 (a) Inspection of electronic expansion valve         • Inspection of electronic expansion valve as a separate unit Measuring point Resistance when normal (b) Outdoor unit fan motor check procedure            ②...

  • Page 77: Option Parts

    '11 • SRK-T-118 11. OPTION PARTS PJA012D729A Installation manual for wired remote controller 11.1 Instullation of wired remote controller (RC-E4) Connect the remote cont terminal block. Connect the terminal of r Read together with indoor unit's installation manual. with the terminal of indoo (X and Y are no polarity) WARNING Wiring route is as shown...
  • Page 78 '11 • SRK-T-118 ote controller Connect the remote controller cord to the Sheath Sheath The range of temperature settin Upper Upper terminal block. When shipped, the range of set tem Connect the terminal of remote controller (X,Y) Upper case Upper case Board Board Heating : 16 ~ 30˚C (55 ~ 86˚F...
  • Page 79 '11 • SRK-T-118 P J A 0 1 2 D 7 2 9 A Sheath The range of temperature setting Upper When shipped, the range of set temperature differs depending on the operation mode as below. Upper case Board Heating : 16 ~ 30˚C (55 ~ 86˚F) Except heating (cooling, fan, dry, automatic) : 18 ~ 30˚C (62 ~ 86˚F) Upper limit and lower limit of set temperature can be changed with remote controller.
  • Page 80 '11 • SRK-T-118 The functional setting The initial function setting for typical using is performed automatically by the indoor unit connected, when remote controller and indoor unit are connected. As long as they are used in a typical manner, there wiil be no need to change the initial settings. If you would like to change the initial setting marked “...
  • Page 81 '11 • SRK-T-118 Note 1: The initial setting marked “ ” is decided by connected indoor and outdoor unit, and is automatically defined as following table. Function No. Item Default Model "Auto-RUN" mode selectable indoor unit. Remote controller function02 Indoor unit without "Auto-RUN" mode Indoor unit with two or three step of air flow setting Remote controller function06...
  • Page 82 '11 • SRK-T-118 P J A 0 1 2 D 7 2 9 A ly defined as following table. Operation message How to set function nit. Function description: Function No. Stop air-conditioner and press (SET) (MODE) setting description: buttons at the same time for over three seconds, and the flow setting "FUNCTION SET "...
  • Page 83 '11 • SRK-T-118 11.2 Interface kit (SC-BIKN-E) RKZ012A088 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 Accessories included in package into consideration, so be sure to observe them at all times. Be sure to check all the accessories included in package.
  • Page 84 '11 • SRK-T-118 Installation of the interface ・Install the interface within the range of the connection cable length (approximately 1.3m) from the indoor unit. Wiring inlet ・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.
  • Page 85 '11 • SRK-T-118 Functions of CNT connector 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. 0.3 mm (Keep the distance between the relay and the CNT terminal within 2 m.)
  • Page 86 '11 • SRK-T-118 Connection of wired remote controller Regarding the connection of wired remote controller, refer to the instruction manual of wired remote controller. ①Switch ON the DIP switch SW2-2 (Factory setting : ON) on the interface PCB. DIP suitch Caution:Wireless remote controller attached to the indoor unit can be used in parallel, after connecting the wired remote controller.
  • Page 87 '11 • SRK-T-118 11.3 Super link E board (SC-ADNA-E) SL2NA-E, and SL3N-AE/BE to control...
  • Page 88 '11 • SRK-T-118...
  • Page 89 '11 • SRK-T-118...

  • Page 90: Parts List

    PARTS LIST INDOOR UNIT DXK09ZJ-S , DXK12ZJ-S, DXK18ZJ-S OUTDOOR UNIT DXC09ZJ-S , DXC12ZJ-S, DXC18ZJ-S...
  • Page 91 PANEL & FAN ASSY CRAE0221...
  • Page 92 DXK09ZJ-S END ITEM NO. : RWA002F066BF Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1～7 RLA102A002J PANEL ASSY,FRONT 1 RLA122A001B PANEL,FRONT 2 RLA435A003 PANEL,AIR INLET 3 RLA437A001 FILTER,AIR 8 W315.5×H330.7(t2) 4 RLA129A017 5 RLA133A001 PLATE,ORNAMENT 6 RKX129A014 HOLDER,FILTER...
  • Page 93 HEAT EXCH. & CONTROL CRAE0222...
  • Page 94 DXK09ZJ-S END ITEM NO. : RWA002F066BF Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1～8 RLA301A013 HEAT EXCH ASSY(AIR) 2 RLA129A004 BRACKET(L) 3 RLA315D004 HEADER ASSY 4 RLA321A058 PIPE 5～7 RLA321A001 PIPE ASSY 6 SSA323F088 UNION(SLD) FOR GAS...
  • Page 95 PANEL & FAN ASSY CRAE0221...
  • Page 96 DXK12ZJ-S END ITEM NO. : RWA002F066BG Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1～7 RLA102A002J PANEL ASSY,FRONT 1 RLA122A001B PANEL,FRONT 2 RLA435A003 PANEL,AIR INLET 3 RLA437A001 FILTER,AIR 8 W315.5×H330.7(t2) 4 RLA129A017 5 RLA133A001 PLATE,ORNAMENT 6 RKX129A014 HOLDER,FILTER 7 RLA011G001B LABEL,WIRING 8～26 RLA435A001K...
  • Page 97 HEAT EXCH. & CONTROL CRAE0223...
  • Page 98 DXK12ZJ-S END ITEM NO. : RWA002F066BG Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1～8 RLA301A013 HEAT EXCH ASSY(AIR) 2 RLA129A004 BRACKET(L) 3 RLA315D004 HEADER ASSY 4 RLA321A058 PIPE 5～7 RLA321A001 PIPE ASSY 6 SSA323F088 UNION(SLD) FOR GAS 7 SSA323F088A UNION(SLD) FOR LIQ.
  • Page 99 PANEL & FAN ASSY CRAE0221...
  • Page 100 DXK18ZJ-S END ITEM NO. : RWA002F066BH Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1～7 RLA102A002J PANEL ASSY,FRONT 1 RLA122A001B PANEL,FRONT 2 RLA435A003 PANEL,AIR INLET 3 RLA437A001 FILTER,AIR 8 W315.5×H330.7(t2) 4 RLA129A017 5 RLA133A001 PLATE,ORNAMENT 6 RKX129A014 HOLDER,FILTER 7 RLA011G001B LABEL,WIRING 8～26 RLA435A001K...
  • Page 101 HEAT EXCH. & CONTROL CRAE0223...
  • Page 102 DXK18ZJ-S END ITEM NO. : RWA002F066BH Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1～8 RLA301A013A HEAT EXCH ASSY(AIR) 2 RLA129A004 BRACKET(L) 3 RLA315D004 HEADER ASSY 4 RLA321A058 PIPE 5～7 RLA321A001B PIPE ASSY 6 SSA323F088B UNION(SLD) FOR GAS 7 SSA323F088A UNION(SLD) FOR LIQ.
  • Page 103 PANEL & FAN ASSY CRBE0323...
  • Page 104 DXC09ZJ-S END ITEM NO. : RWC003F076BC Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCV122A005 PANEL ASSY,FRONT 2 RCV123A005 PANEL ASSY,SIDE(R) 3 RCV124A003 PANEL ASSY,TOP 4 RCV132A004 COVER ASSY,SERVICE 5 RCV435A001A GRILLE,AIR OUTLET 6 SSA944B036B HANDLE 7 RCV142A001 COVER(TB) 8 SSA913A034F SCREW,TAP...
  • Page 105 HEAT EXCH. & CONTROL (GAS) (LIQ.) 31 24 24・30 24・29 CRBE0339 CONTROL ASSY...
  • Page 106 DXC09ZJ-S END ITEM NO. : RWC003F076BC Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCV301A100 HEAT EXCH ASSY(AIR) 2 SSA382C091 VALVE,S(4WAY) 2 20S 3～7 RCV304A100 PIPING ASSY(EXPAN) 3 SSA387F051 VALVE,BODY(EXP) 2 EEV 4 RCV315B001 CAPILLARY 2.6× 4.0 L300 5 SSA357A005A STRAINER 6 RCV315B100...
  • Page 107 PANEL & FAN ASSY CRBE0323...
  • Page 108 DXC12ZJ-S END ITEM NO. : RWC003F076BD Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCV122A005 PANEL ASSY,FRONT 2 RCV123A005 PANEL ASSY,SIDE(R) 3 RCV124A003 PANEL ASSY,TOP 4 RCV132A004 COVER ASSY,SERVICE 5 RCV435A001A GRILLE,AIR OUTLET 6 SSA944B036B HANDLE 7 RCV142A001 COVER(TB) 8 SSA913A034F SCREW,TAP...
  • Page 109 HEAT EXCH. & CONTROL (GAS) (LIQ.) 31 24 24・30 24・29 CRBE0339 CONTROL ASSY...
  • Page 110 DXC12ZJ-S END ITEM NO. : RWC003F076BD Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCV301A100 HEAT EXCH ASSY(AIR) 2 SSA382C091 VALVE,S(4WAY) 2 20S 3～7 RCV304A100 PIPING ASSY(EXPAN) 3 SSA387F051 VALVE,BODY(EXP) 2 EEV 4 RCV315B001 CAPILLARY 2.6× 4.0 L300 5 SSA357A005A STRAINER 6 RCV315B100...
  • Page 111 PANEL & FAN ASSY CRBE0324...
  • Page 112 DXC18ZJ-S END ITEM NO. : RWC003F083AB Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCT122A003 PANEL ASSY,FRONT 2 RCT122A006 PANEL,SERVICE 3 RCT124A002 PANEL,TOP 4 RCT125A002 PANEL ASSY,REAR 5 RCT435A001 GRILLE,AIR OUTLET 6 RCT132A002 COVER ASSY,SERVICE 7 SSA944B036B HANDLE 8 RCT131A001 GUARD,FIN...
  • Page 113 HEAT EXCH. & CONTROL (LIQ.) (GAS) 29・32 29・33 CRBE0326 CONTROL ASSY...
  • Page 114 DXC18ZJ-S END ITEM NO. : RWC003F083AB Recommendable Purchased Q'ty Part No. Part Name RE.Q Note 1000 1 RCT301A005 HEAT EXCH ASSY(AIR) 2～5 RCT304A016 PIPING ASSY(EXPAN) 2 SSA387F051 VALVE,BODY(EXP) 2 EEV 3 SSA357A005A STRAINER 4 P210V26X300 CAPILLARY 2.6× 4.0 L300 5 RCM325A300D PIPE,SHELL 6 RCS116A004 BRACKET,VALVE...
  • Page 115 INVERTER RESIDENTIAL AIR CONDITIONERS Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. Copyright MITSUBISHI HEAVY INDUSTRIES, LTD.

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