Mitsubishi Electric PKA-M60KA2 Service Manual
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Mitsubishi Electric PKA-M60KA2 Service Manual

Mitsubishi Electric PKA-M60KA2 Service Manual

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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
SERVICE MANUAL
Indoor unit
[Model Name]
PKA-M60KA2
PKA-M60KA2-ER
PKA-M60KA2-ET
PKA-M71KA2
PKA-M71KA2-ER
PKA-M71KA2-ET
PKA-M100KA2
PKA-M100KA2-ER
PKA-M100KA2-ET
PKA-M60KAL2
PKA-M60KAL2-ER
PKA-M60KAL2-ET
PKA-M71KAL2
PKA-M71KAL2-ER
PKA-M71KAL2-ET
PKA-M100KAL2
PKA-M100KAL2-ER
PKA-M100KAL2-ET
INDOOR UNIT
R32/R410A
[Service Ref.]
PKA-M60KA2.TH
PKA-M60KA2-ER.TH
PKA-M60KA2-ET.TH
PKA-M71KA2.TH
PKA-M71KA2-ER.TH
PKA-M71KA2-ET.TH
PKA-M100KA2.TH
PKA-M100KA2-ER.TH
PKA-M100KA2-ET.TH
PKA-M60KAL2.TH
PKA-M60KAL2-ER.TH
PKA-M60KAL2-ET.TH
PKA-M71KAL2.TH
PKA-M71KAL2-ER.TH
PKA-M71KAL2-ET.TH
PKA-M100KAL2.TH
PKA-M100KAL2-ER.TH
PKA-M100KAL2-ET.TH
10. FUNCTION SETTING .................................... 30
11. SPECIAL FUNCTION .................................... 31
12. DISASSEMBLY PROCEDURE ...................... 33
13. REMOTE CONTROLLER .............................. 37
REVISED EDITION-A
Revision:
• Add frequency 60Hz for
TCH069 is void.
CONTENTS
1. REFERENCE MANUAL .................................. 2
2. SAFETY PRECAUTION .................................. 2
3. PARTS NAMES AND FUNCTIONS ................ 8
4. SPECIFICATIONS ........................................... 9
5. NOISE CRITERION CURVES ....................... 10
6. OUTLINES AND DIMENSIONS ...................... 11
7. WIRING DIAGRAM ........................................ 12
9. TROUBLESHOOTING ................................... 14
PARTS CATALOG (TCB069)
October 2023
No. TCH069
PKA-M*KA2 model.

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  • Page 1: Table Of Contents

    SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS SPLIT-TYPE, AIR CONDITIONERS October 2023 No. TCH069 REVISED EDITION-A SERVICE MANUAL R32/R410A Indoor unit [Model Name] [Service Ref.] Revision: PKA-M60KA2.TH • Add frequency 60Hz for PKA-M60KA2 PKA-M*KA2 model. PKA-M60KA2-ER.TH PKA-M60KA2-ER PKA-M60KA2-ET.TH TCH069 is void. PKA-M60KA2-ET PKA-M71KA2.TH PKA-M71KA2 PKA-M71KA2-ER.TH...

  • Page 2: Reference Manual

    REFERENCE MANUAL OUTDOOR UNIT’S SERVICE MANUAL Model Name Service Manual No. OCH526E PUHZ-SHW112V(Y)HA OCB526H PUHZ-ZRP50VKA2 OCH635A PUHZ-ZRP60VKA2 OCB635A PUHZ-ZRP71VKA2 PUHZ-ZRP100V(Y)KA3 PUHZ-ZRP125V(Y)KA3 OCH645D PUHZ-ZRP140V(Y)KA3 OCB645C PUHZ-ZRP200YKA2 PUHZ-ZRP250YKA2 PUHZ-P200YKA2 OCH647 PUHZ-P250YKA2 OCB647A OCH665B PUHZ-FRP71VHA2 OCB665B PUHZ-P100V(Y)KA OCH670B PUHZ-P125V(Y)KA OCB670 PUHZ-P140V(Y)KA OCH751 PUZ-ZM50VKA2 OCB751 PUZ-ZM60VHA2 PUZ-ZM71VHA2...
  • Page 3 2-2. CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R32/R410A Precautions during the repair service. Preparation before the repair service. • Prepare the proper tools. • Do not perform the work involving the electric parts • Prepare the proper protectors. with wet hands.
  • Page 4 [1] Warning for service (1) Do not alter the unit. (2) For installation and relocation work, follow the instructions in the Installation Manual and use tools and pipe components specifically made for use with refrigerant specified in the outdoor unit installation manual. (3) Ask a dealer or an authorized technician to install, relocate and repair the unit.
  • Page 5 [4] Cautions for unit using R32 refrigerant Basic work procedures are the same as those for conventional units using refrigerant R410A. However, pay careful attention to the following points. (1) Information on servicing (1-1) Checks on the Area Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimized.
  • Page 6 (3) Repair to intrinsically Safe Components Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use. Intrinsically safe components are the only types that can be worked on while live in the presence of a flammable atmos- phere.
  • Page 7 b) Isolate system electrically. c) Before attempting the procedure, ensure that: • mechanical handling equipment is available, if required, for handling refrigerant cylinders; • all personal protective equipment is available and being used correctly; • the recovery process is supervised at all times by a competent person; •...

  • Page 8: Parts Names And Functions

    Unit Electronic weighing scale [5] Service tools Use the below service tools as exclusive tools for R32/R410A refrigerant. Refer to the spec name plate on outdoor unit for the type of refrigerant being used. Tool name Specifications Gauge manifold · Use the existing fitting specifications . (UNF1/2) ·...

  • Page 9: Specifications

    SPECIFICATIONS Service Ref. PKA-M60KA2(-ER/-ET).TH PKA-M60KAL2(-ER/-ET).TH Mode Cooling Heating Power supply (phase, cycle, voltage) Single phase, 50/60Hz, 230V Input 0.06 0.05 Running current 0.43 0.36 External finish (Panel) Munsell 1.0Y 9.2/0.2 Heat exchanger Plate fin coil Fan (drive) x No. Line flow fan (direct) x 1 Fan motor output 0.056...

  • Page 10: Noise Criterion Curves

    39 - 42 - 45 PKA-M100KA(L) 41 - 45 - 49 1.0 m Measurement location Note: Measured in anechoic room. 5-2. NOISE CRITERION CURVES PKA-M60KA2(-ER/-ET).TH PKA-M100KA2(-ER/-ET).TH PKA-M60KAL2(-ER/-ET).TH PKA-M100KAL2(-ER/-ET).TH PKA-M71KA2(-ER/-ET).TH PKA-M71KAL2(-ER/-ET).TH External static pressure : 0Pa External static pressure : 0Pa 70.0...

  • Page 11: Outlines And Dimensions

    OUTLINES AND DIMENSIONS PKA-M60KA2(-ER/-ET).TH PKA-M71KA2(-ER/-ET).TH PKA-M100KA2(-ER/-ET).TH PKA-M60KAL2(-ER/-ET).TH PKA-M71KAL2(-ER/-ET).TH PKA-M100KAL2(-ER/-ET).TH Unit: mm Top side 423.7 431.7 Right side Left side Front side Mount board Knockout hole for left piping (855) Operation lamp 1170 Knockout hole for DEFROST/STAND BY lamp right piping...

  • Page 12: Wiring Diagram

    WIRING DIAGRAM PKA-M60KA2(-ER/-ET).TH PKA-M71KA2(-ER/-ET).TH PKA-M100KA2(-ER/-ET).TH PKA-M60KAL2(-ER/-ET).TH PKA-M71KAL2(-ER/-ET).TH PKA-M100KAL2(-ER/-ET).TH TCH069A...

  • Page 13: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM PKA-M60KA2(-ER/-ET).TH PKA-M71KA2(-ER/-ET).TH PKA-M100KA2(-ER/-ET).TH PKA-M60KAL2(-ER/-ET).TH PKA-M71KAL2(-ER/-ET).TH PKA-M100KAL2(-ER/-ET).TH Strainer (#50) Heat exchanger Refrigerant GAS pipe connection (Flare) Thermistor TH2 Refrigerant flow in cooling (Pipe temperature/liquid) Refrigerant flow in heating Thermistor TH5 (Cond./Eva. temperature) Refrigerant LIQUID pipe connection (Flare) Thermistor TH1...

  • Page 14: Troubleshooting

    TROUBLESHOOTING 9-1. TROUBLESHOOTING <Check code displayed by self-diagnosis and actions to be taken for service (summary)> Present and past check codes are logged, and they can be displayed on the wired remote controller or controller board of out- door unit. Actions to be taken for service, which depends on whether or not the trouble is reoccurring in the field, are summa- rized in the table below.
  • Page 15 9-2. MALFUNCTION-DIAGNOSIS METHOD BY REMOTE CONTROLLER 9-2-1. PAR-SL97A-E <In case of trouble during operation> When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop. < Malfunction-diagnosis method at maintenance service> [Procedure] 1.
  • Page 16 • Refer to the following tables for details on the check codes. [Output pattern A] Beeper sounds Beep Beep Beep Beep Beep Beep Beep OPERATION · · · Repeated INDICATOR lamp flash pattern Approx. 2.5 s 0.5 s 0.5 s 0.5 s 0.5 s Approx.
  • Page 17 • If the unit cannot be operated properly after test run, refer to the following table to find the cause. Symptom Cause Wired remote controller LED 1, 2 (PCB in outdoor unit) For about 2 •For about 2 minutes following power-on, After LED 1, 2 are lighted, LED 2 is PLEASE WAIT minutes after...
  • Page 18 Note: Errors to be detected in outdoor unit, such as codes starting with F, U or E (excluding E0 to E7), are not covered in this document. Please refer to the out- 9-3. SELF-DIAGNOSIS ACTION TABLE door unit's service manual for the details. Abnormal point and detection method Countermeasure Check code...
  • Page 19 Abnormal point and detection method Countermeasure Check code Cause Freezing/overheating protection is oper- (Cooling or drying mode) (Cooling or drying mode) ating 1 Clogged filter (reduced airflow) 1 Check clogs of the filter. 1 Freezing protection (Cooling mode) 2 Short cycle of air path 2 Remove shields.
  • Page 20 Abnormal point and detection method Countermeasure Check code Cause Pipe temperature thermistor / 1–3 Check resistance value of thermistor. Condenser-Evaporator (TH5) 1 Defective thermistor For characteristics, refer to (P1) above. 1 The unit is in 3-minute resume protec- characteristics 2 Check contact failure of connector (CN44) on the indoor controller board.
  • Page 21 Abnormal point and detection method Countermeasure Check code Cause Remote controller transmission error(E3)/ 1 Set a remote controller to main, and the signal receiving error(E5) 1 2 remote controllers are set as other to sub. 1 Abnormal if remote controller could not “main.”...
  • Page 22 Abnormal point and detection method Countermeasure Check code Cause Forced compressor stop 1 Drain pump trouble 1 Check the drain pump. (due to water leakage abnormality) 1 The unit has a water leakage abnor- 2 Drain defective 2 Check whether water can be drained. mality when the following conditions, a) ·...
  • Page 23 9-4. TROUBLESHOOTING BY INFERIOR PHENOMENA Note: Refer to the outdoor unit's service manual for the detail of remote controller. Phenomena Cause Countermeasure (1) LED2 on indoor controller board • When LED1 on indoor controller board is also off. is off. 1 Power supply of rated voltage is not supplied to out- 1 Check the voltage of outdoor power door unit.
  • Page 24 Note: Refer to the outdoor unit's service manual for the detail of remote controller. Phenomena Cause Countermeasure (2) LED2 on indoor controller board • When LED1 on indoor controller board is also blinking. Check indoor/outdoor unit connecting wire is blinking. Connection failure of indoor/outdoor unit connecting for connection failure.
  • Page 25 9-5. EMERGENCY OPERATION 9-5-1. When wireless remote controller troubles or its battery is exhausted When the remote controller cannot be used When the batteries of the remote controller run out or the remote controller malfunctions, the emergency operation can be done using the emergency buttons.
  • Page 26 9-6. HOW TO CHECK THE PARTS PKA-M60KA2(-ER/-ET).TH PKA-M71KA2(-ER/-ET).TH PKA-M100KA2(-ER/-ET).TH PKA-M60KAL2(-ER/-ET).TH PKA-M71KAL2(-ER/-ET).TH PKA-M100KAL2(-ER/-ET).TH Parts name Check points Room temperature Disconnect the connector then measure the resistance using a tester. thermistor (TH1) (At the ambient temperature 10 to 30:) Pipe temperature Normal...
  • Page 27 9-6-2. DC Fan motor (fan motor/indoor controller circuit board) Check method of DC fan motor (fan motor/indoor controller circuit board) Notes · High voltage is applied to the connecter (CNMF) for the fan motor. Pay attention to the service. · Do not pull out the connector (CNMF) for the motor with the power supply on. board and fan motor.) (It causes trouble of the indoor controller circuit Self check...
  • Page 28 9-7. TEST POINT DIAGRAM PKA-M60KA2(-ER/-ET).TH PKA-M71KA2(-ER/-ET).TH PKA-M100KA2(-ER/-ET).TH PKA-M60KAL2(-ER/-ET).TH PKA-M71KAL2(-ER/-ET).TH PKA-M100KAL2(-ER/-ET).TH CNMF Connect to the fan motor (MF) 1–3: 310–340 V DC 4–3: 15 V DC 5–3: 0–6.5 V DC 6–3: 0 or 15 V DC CN01 Connect to the Terminal block (TB4) 1–3 : 220–240 V AC...
  • Page 29 9-8. FUNCTIONS OF DIP SWITCH AND JUMPER WIRE Each function is controlled by the DIP switch and the jumper wire on the indoor controller board. (Marks in the table below) Jumper wire ( : Short : Open) ■ The black square ( ) indicates a switch position.

  • Page 30: Function Setting

    FUNCTION SETTING 10-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be set as necessary using the remote controller. The setting of function for each unit can only be done by the remote controller. (1) Functions available when setting the unit number to "Grp." Refer to the service manual that comes with each outdoor unit.

  • Page 31: Special Function

    SPECIAL FUNCTION 11-1. ROTATION FUNCTION (AND BACK-UP FUNCTION, 2ND STAGE CUT-IN FUNCTION) Optional wired remote controller with terminal bed is necessary for PKA type. 11-1-1. Operation (1) Rotation function (and Back-up function) • Outline of functions · Main and sub unit operate alternately according to the interval of rotation setting. Main and sub unit should be set by refrigerant address.
  • Page 32 • System constraint · This function is available only in cooling mode. Ex.) Set temp. by R/C = 20: [2nd stage cut-in function] Set point = 26: Room temp. ] Set point Room temp. < Set point −4: Start operation Sub unit start operation Sub unit stop Main...

  • Page 33: Disassembly Procedure

    DISASSEMBLY PROCEDURE PKA-M60KA2(-ER/-ET).TH PKA-M71KA2(-ER/-ET).TH PKA-M100KA2(-ER/-ET).TH PKA-M60KAL2(-ER/-ET).TH PKA-M71KAL2(-ER/-ET).TH PKA-M100KAL2(-ER/-ET).TH Be careful when removing heavy parts. OPERATION PROCEDURE PHOTOS & ILLUSTRATIONS 1. Removing the panel Photo 1 Front grille Screws (1) Press and unlock the knobs on both sides of the front grille and lift the front grille until it is level.
  • Page 34 OPERATION PROCEDURE PHOTOS 3. Removing the electrical box Photo 4 Connector for ground wire Fixture (1) Remove the panel and the corner box. (Refer to procedure 1) (2) Remove the front and side electrical box covers (each 1 screw). Terminal block Electrical box (3) Remove the indoor/outdoor connecting wire from termi- (TB4)
  • Page 35 OPERATION PROCEDURE PHOTOS 6. Removing the indoor fan motor and the line flow fan Photo 7 Screw of the motor band (1) Remove the panel and the corner box. (Refer to procedure 1) (2) Remove the electrical box (Refer to procedure 2) and the Lead wire of pipe ther- nozzle assembly (Refer to procedure 3).
  • Page 36 OPERATION PROCEDURE PHOTOS 8. Removing the heat exchanger Photo 11 (1) Remove the panel and the corner box. (Refer to procedure 1) Heat exchanger Water cut (2) Remove the electrical box (Refer to procedure 3) and the nozzle assembly (Refer to procedure 4). (3) Remove the water cut.

  • Page 37: Remote Controller

    REMOTE CONTROLLER 13-1. REMOTE CONTROLLER FUNCTIONS <PAR-41MAA> Controller interface The functions of the function buttons change depending on the screen. Refer to the button function guide that appears at the bottom of the LCD for the functions they serve on a given screen. When the system is centrally controlled, the button function guide that corresponds to the locked button will not appear.
  • Page 38 Display The main display can be displayed in two different modes: ˝Full˝ and ˝Basic˝. The initial setting is ˝Full˝. To switch to the ˝Basic˝ mode, change the setting on the Main display setting. (Refer to operation manual included with remote controller.) <Full mode>...
  • Page 39 Menu structure Main menu Press the button. Move the cursor to the desired item with the buttons, and press the button. Operation Vane · 3D i-See · Vent. (Lossnay) High power Comfort Manual vane angle 3D i-See sensor Vertical air direction Horizontal air direction Timer menu Timer...
  • Page 40 Continue from the previous page. Maintenance menu Error information Filter information Cleaning Auto descending panel Descending operation Descending adjustment Service menu Test run menu Test run Drain pump test run Maintenance information Collect model names and serial No. Model name input Serial No.
  • Page 41 Main menu list Main Setting and display items Setting details menu Operation Vane · 3D i-See · Vent. Vane: Use to set the vertical air direction. (Vane.Vent. (Lossnay)) Louver: Use to set the horizontal air direction. 3D i-See sensor: This setting is available only for the air conditioners that support easy setting function of motion sensing air direction.
  • Page 42 Main Setting and display items Setting details menu Initial Basic Main/Sub When connecting 2 remote controllers, one of them needs to be designated as setting setting a sub controller. Clock Use to set the current time. Daylight Set the daylight saving time. saving time Administrator The administrator password is required to make the settings for the following...
  • Page 43 <PAR-SL97A-E> Controller interface Transmission area Transmission indicator Remote controller display Timer indicator *For explanation purposes, all of the items that appear in the display are shown. *All items are displayed when the Reset button is pressed. Operation areas ON/OFF button Temperature setting buttons Fan Speed button (Changes fan speed) Timer Off button...
  • Page 44 <PAR-SL101A-E> Controller interface Transmission area Remote controller display Set Temperature buttons OFF/ON button Mode button (Changes operation mode) Fan Speed button (Changes fan speed) Airflow button (Changes up/ i-see button* down airflow direction) Timer ON button Menu button Timer OFF button SET/SEND button Weekly timer ON/OFF button* CANCEL button Up/Down buttons...
  • Page 45 13-2. ERROR INFORMATION When an error occurs, the following screen will appear. Check the error status, stop the operation, and consult your dealer. 1. Check code, error unit, refrigerant address, date and time of occur- Error information rence, model name, and serial number will appear. Error code The model name and serial number will appear only if the informa- Error unit...
  • Page 46 • Checking the error information Maintenance menu While no errors are occurring, page 2/2 of the error information can be Error information viewed by selecting ˝Error information˝ from the Maintenance menu. Filter information Errors cannot be reset from this screen. Cleaning Main menu: Cursor TCH069A...
  • Page 47 13-3. SERVICE MENU Maintenance password is required 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Main Main menu *At the main display, the menu button and select ˝Service˝ to make Service the maintenance setting. 2. When the Service menu is selected, a window will appear asking for the pass- Service menu word. Enter maintenance password To enter the current maintenance password (4 numerical digits), move the cursor to the digit you want to change with the F1 or F2 button.
  • Page 48 13-4. TEST RUN 13-4-1. PAR-41MAA 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Test run Input maintenance info. Settings Check Select ˝Test run˝ with the F1 or F2 button, and press the [ ] button. Others 2. Select ˝Test run˝ with the F1 or F2 button, and press the [ ] button. Test run menu Test run Drain pump test run Service menu:...
  • Page 49 13-4-2. PAR-SL97A-E Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500 V Megger and check that it is equal to or greater than 1.0 MΩ. TEST RUN 1. Turn on the main power to the unit. TEST RUN 2.
  • Page 50 13-5. FUNCTION SETTING 13-5-1. PAR-41MAA Settings menu 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Function setting Rotation setting Select ˝Setting˝ from the Service menu, and press the [ ] button. Service menu: Select ˝Function setting˝, and press the [ ] button. <The display format and the setting method vary with indoor units.> Pattern 1 Function setting Ref. address Grp.
  • Page 51 Pattern 2 Function setting Ref. address 4. Toggle through the pages with the F3 or F4 button. Grp. (1/8) Mode 1 Mode 2 Mode 3 5. Select the mode number with the F1 or F2 button, and then press the [ Mode 4 button.
  • Page 52 13-5-2. PAR-SL97A-E Functions can be selected with the wireless remote controller. Function selection using wireless remote controller is available only for refriger- ant system with wireless function. Refrigerant address cannot be specified by the wireless remote controller. [Flow of function selection procedure] The flow of the function selection procedure is shown below.
  • Page 53 13-5-3. PAR-SL101A-E 1. Going to the function select mode Press the button between of 5 seconds. (Start this operation from the status of remote controller display turned off.) [CHECK] is lit and ˝00˝ blinks. (Fig. 1) Press the button to set the ˝50˝. Direct the wireless remote controller toward the receiver of the indoor unit and press the button. Fig. 1 2. Setting the unit number Press the button to set unit number A.
  • Page 54 13-6. ROTATION SETTING Setting method of each function by wired remote controller Settings menu Function setting ■ PAR-41MAA Rotation setting 1. Stop operation Service menu: Select "Service" from the Main menu, and press the [ ] button. Cursor Select "Settings" with the F1 or F2 button, and press the [ ] button.
  • Page 55 13-7. ERROR HISTORY 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Test run Input maintenance info. Settings Check Others Select ˝Check˝ with the F1 or F2 button, and press the [ button. Select ˝Error history˝ with the F1 or F2 button, and press the [ ] button. 2. S elect ˝Error history˝ from the Error history menu, and press Error history menu the [ ] button.
  • Page 56 5. Preliminary error history Preliminary error hist. Select "Preliminary error hist." from the Error history menu, and press Error Unt# dd/mm/yy the [ ] button. 32 preliminary error history records will appear. Error history menu: Delete Page 4 records are shown per page, and the top record on the first page indi- cates the latest error record.
  • Page 57 13-8. SELF-DIAGNOSIS 13-8-1. PAR-41MAA 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Diagnosis Self check Select ˝Check˝ from the Service menu, Remote controller check and press the [ ] button. Service menu: Select ˝Diagnosis˝ from the Check menu, Cursor and press the [ ] button. Select ˝Self check˝ with the F1 or F2 button, and press the [ ] button.
  • Page 58 13-8-2. PAR-SL97A-E When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop. < Malfunction-diagnosis method at maintenance service> Refrigerant [Procedure] address display 1. Press the CHECK button twice. CHECK • ˝...
  • Page 59 13-9. REMOTE CONTROLLER CHECK If operations cannot be completed with the remote controller, diagnose the remote controller with this function. 1. Select ˝Service˝ from the Main menu, Diagnosis and press the [ ] button. Self check Remote controller check Select ˝Check˝ from the Service menu, and press the [ ] button. Service menu: Cursor Select ˝Diagnosis˝ from the Check menu,...
  • Page 60 13-10. SMOOTH MAINTENANCE 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Check menu Error history Diagnosis Smooth maintenance Request code Select ˝Check˝ with the F1 or F2 button, and press the [ ] button. Service menu: Cursor Select ˝Smooth maintenance˝ with the F1 or F2 button, and press the [ ] button.
  • Page 61 ■ Refrigerant address Single refrigerant system Multi refrigerant system (group control) In the case of single refrigerant system, the refrigerant address Up to 16 refrigerant systems (16 outdoor units) can be con- is ˝00˝ and no operation is required. nected as a group by 1 remote controller. To check or set the Simultaneous twin, triple units belong to this category refrigerant addresses.
  • Page 62 HEAD OFFICE : TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN MITSUBISHI ELECTRIC CONSUMER PRODUCTS (THAILAND) CO., LTD 700/406 MOO 7 TAMBON DON HUA ROH, AMPHUR MUANG, CHONBURI 20000 THAILAND Issued: Oct. 2023. No. TCH069 REVISED EDITION-A Published: Oct. 2021. No. TCH069 Specifications are subject to change without notice.

This manual is also suitable for:

Pka seriesPka-m60ka2-erPka-m60ka2-etPka-m71ka2Pka-m71ka2-erPka-m71ka2-et ... Show all

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