Mitsubishi Electric City Multi PCFY Series Technical & Service Manual
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Mitsubishi Electric City Multi PCFY Series Technical & Service Manual

Mitsubishi Electric City Multi PCFY Series Technical & Service Manual

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TECHNICAL & SERVICE MANUAL
Indoor unit
[Model names]
PCFY-WL40VKM-E
PCFY-WL40VKM-ET
PCFY-WL63VKM-E
PCFY-WL63VKM-ET
PCFY-WL80VKM-E
PCFY-WL80VKM-ET
PCFY-WL100VKM-E
PCFY-WL100VKM-ET
INDOOR UNIT
[Service Ref.]
PCFY-WL40VKM-E
PCFY-WL40VKM-ET
PCFY-WL63VKM-E
PCFY-WL63VKM-ET
PCFY-WL80VKM-E
PCFY-WL80VKM-ET
PCFY-WL100VKM-E
PCFY-WL100VKM-ET
indication
No. OCH851
Note:
• This manual describes only
service data of the indoor units.
CONTENTS
1. SAFETY PRECAUTION ······················· 2
2. PART NAMES AND FUNCTIONS ·········· 2
3. SPECIFICATION ································ 3
4. OUTLINES AND DIMENSIONS ············· 7
5. WIRING DIAGRAM ··························· 10
7. TROUBLESHOOTING ······················· 13
8. DISASSEMBLY PROCEDURE ············ 19
9. REMOTE CONTROLLER ··················· 25
PARTS CATALOG (OCB851)
March 2024

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  • Page 1: Table Of Contents

    March 2024 No. OCH851 TECHNICAL & SERVICE MANUAL Indoor unit [Model names] [Service Ref.] PCFY-WL40VKM-E PCFY-WL40VKM-E PCFY-WL40VKM-ET PCFY-WL40VKM-ET PCFY-WL63VKM-E PCFY-WL63VKM-E PCFY-WL63VKM-ET PCFY-WL63VKM-ET Note: PCFY-WL80VKM-E • This manual describes only PCFY-WL80VKM-E service data of the indoor units. PCFY-WL80VKM-ET PCFY-WL80VKM-ET PCFY-WL100VKM-E PCFY-WL100VKM-E PCFY-WL100VKM-ET PCFY-WL100VKM-ET CONTENTS...

  • Page 2: Safety Precaution

    SAFETY PRECAUTION Cautions for units utilizing refrigerant Water CAUTION Do not use the existing water piping. Only use water. Store the piping materials indoors, and keep both ends of Only use clean water as a refrigerant. The use of water the pipes sealed until immediately before installation.

  • Page 3: Specification

    SPECIFICATION 3-1. SPECIFICATIONS Model PCFY-WL40VKM-E/ET PCFY-WL63VKM-E/ET PCFY-WL80VKM-E/ET PCFY-WL100VKM-E/ET 1-phase 220-240V 50Hz , 1-phase 220V 60Hz Power source Cooling capacity *1 kW 11.2 ( Nominal ) *1 kcal/h 3 , 900 6 , 100 9 , 600 12 , 000 *1 Btu/h 15 , 400 24 , 200 38 , 200...

  • Page 4: Electrical Parts Specifications

    3-2. ELECTRICAL PARTS SPECIFICATIONS Service Ref. PCFY-WL80VKM-E PCFY-WL100VKM-E PCFY-WL40VKM-E PCFY-WL63VKM-E Symbol PCFY-WL80VKM-ET PCFY-WL40VKM-ET PCFY-WL63VKM-ET PCFY-WL100VKM-ET Parts name Room temperature TH21 Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.4kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ thermistor Inlet pipe thermistor TH22 Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.4kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ Outlet pipe thermistor TH23 Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.4kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ...
  • Page 5 3-4. NC CURVES PCFY-WL40VKM-E PCFY-WL63VKM-E PCFY-WL40VKM-ET PCFY-WL63VKM-ET External static pressure : 0Pa External static pressure : 0Pa Power source : 220,230,240V, 50Hz / 220V, 60Hz Power source : 220,230,240V, 50Hz / 220V, 60Hz Middle2 Middle2 High High Middle1 Middle1 70.0 70.0 65.0 65.0...
  • Page 6 3-5. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS PCFY-WL63VKM-E PCFY-WL40VKM-E PCFY-WL63VKM-ET PCFY-WL40VKM-ET -100 -100 -150 -150 -200 -200 -250 -250 -300 -300 Airflow rate[m³/min] Airflow rate[m³/min] PCFY-WL80/100VKM-E How to read curves PCFY-WL80/100VKM-ET Duct characteristics Curve in the at site graphs Q …...

  • Page 7: Outlines And Dimensions

    OUTLINES AND DIMENSIONS PCFY-WL40VKM-E Unit : mm PCFY-WL40VKM-ET OCH851...
  • Page 8 Unit : mm PCFY-WL63VKM-E PCFY-WL63VKM-ET OCH851...
  • Page 9 Unit : mm PCFY-WL80VKM-E PCFY-WL100VKM-E PCFY-WL80VKM-ET PCFY-WL100VKM-ET OCH851...

  • Page 10: Wiring Diagram

    WIRING DIAGRAM PCFY-WL40VKM-E PCFY-WL63VKM-E PCFY-WL80VKM-E PCFY-WL100VKM-E OCH851...
  • Page 11 PCFY-WL40VKM-ET PCFY-WL63VKM-ET PCFY-WL80VKM-ET PCFY-WL100VKM-ET OCH851...

  • Page 12: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM Inlet pipe thermistor TH22 Water inlet connection Water flow Manual air purge valve Outlet pipe thermistor TH23 Water outlet connection Water flow Heat exchanger Room temperature thermistor TH21 Unit : mm Service Ref. PCFY-WL63VKM-E PCFY-WL63VKM-ET PCFY-WL40VKM-E PCFY-WL80VKM-E PCFY-WL40VKM-ET PCFY-WL80VKM-ET PCFY-WL100VKM-E...

  • Page 13: Troubleshooting

    TROUBLESHOOTING 7-1. HOW TO CHECK THE PARTS Parts name Checkpoints Disconnect the connector then measure the resistance with a tester. Room temperature (At the ambient temperature of 10°C~30°C) thermistor (TH21) Inlet pipe thermistor (TH22) Normal Abnormal (Refer to Thermistor characteristic graph.) Outlet pipe thermistor 4.3kΩ~9.6kΩ...
  • Page 14 7-1-2. 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 connector (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. (It causes trouble of the indoor controller board and fan motor.) Self check Symptom : The indoor fan cannot turn around.
  • Page 15 7-2. FUNCTION OF DIP SWITCH ■ The black square ( ) indicates a switch position. Operation by switch Effective Switch Pole Function Remarks timing Thermistor <Room temperature <Initial setting> Built-in remote controller Indoor unit detection> position Filter clogging detection Provided Not provided 1 2 3 4 5 6 7 8 9 10 Note :...
  • Page 16 Switch Pole Function Operation by switch Effective Remarks timing SW11 How to set address <Initial setting> 1s digit Example : If address is "3", remain SW12 SW12 SW11 SW12 SW11 address (for over 10) at "0", and match SW11 (for 1 to 9) setting with "3".
  • Page 17 ■ The black square ( ) indicates a switch position. Operation by switch Effective Switch Pole Function Remarks timing <Initial setting> Setting the ceiling height Depending on the combination of SW21-1 and SW21-2. Setting the ceiling height SW21 ─ ─ ─...

  • Page 18: Test Point Diagram

    7-3. TEST POINT DIAGRAM 7-3-1. Indoor controller board CN3M Connect to the terminal block (TB5) (M-NET transmission connecting wire) CN2A : 24-30 VDC (non-polar) Connect to the terminal block (TB15) (MA-Remote controller connecting wire) SW21 - : 8.7-13 VDC (non-polar) Function setting LED2 Vane motor output...

  • Page 19: Disassembly Procedure

    DISASSEMBLY PROCEDURE Be careful when removing heavy parts. (Photo: PCFY-WL100VKM-E) : Indicates the visible parts in the photos/figures. OPERATING PROCEDURE PHOTOS/FIGURES Figure 1 1. Removing the air intake grille (1) Slide the air intake grille holding knobs (at 2 or 3 loca- tions) to the rear to open the air intake grille.
  • Page 20 OPERATING PROCEDURE PHOTOS/FIGURES 3. Removing the room temperature thermistor (TH21) Photo 4 Casing (1) Remove the air intake grille. (See Figure 1, 2) (2) Remove the screw from the beam and remove the beam. (See Photo 1) (3) Remove 2 screws from the electrical cover, and remove the electrical cover.
  • Page 21 OPERATING PROCEDURE PHOTOS/FIGURES 5. Removing the fan (3 connection) Photo 9 Beam Fan guard (1) Remove the air intake grille. (See Figure 1, 2) (2) Remove the screw from the beam and remove the beam. (See Photo 1) (3) Remove 2 screws from the electrical cover, and remove the electrical cover.
  • Page 22 OPERATING PROCEDURE PHOTOS/FIGURES Photo 13 7. Removing the vane motor (1) Remove the air intake. (See Figure 1, 2) Vane motor Connector (2) Remove the right side panel. (See Figure 3) and cover (3) Remove the connector of vane motor. (4) Remove 2 screws of vane motor cover , then remove vane motor.
  • Page 23 OPERATING PROCEDURE PHOTOS/FIGURES Photo 18 10. Removing the pipe thermistors / Inlet (TH22) and Outlet (TH23) (1) Remove the air intake grille. (See Figure 1, 2) (2) Remove the left and right side panels. (See Figure 3) (3) Remove the under panel. (See Photo 14) (4) Remove the drain pan.
  • Page 24 OPERATING PROCEDURE PHOTOS/FIGURES Photo 22 13. Removing the heat exchanger (1) Remove the air intake grille. (See Figure 1, 2) (2) Remove the beam. (See Photo 1) (3) Remove the electrical cover. (See Photo 1) (4) Pull the electrical box downward. (See Photo 2) (5) Remove the left and right side panels.

  • Page 25: Remote Controller

    REMOTE CONTROLLER 9-1. 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 26 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 27: Menu Structure

    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 28: Model Name

    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 29: Main Menu List

    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 30 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 31: Controller Interface

    <PAR-SL94B-E> Transmission area Controller interface 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 32 <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...
  • Page 33 <PAR-U02MEDA> Controller interface ▌1 Occupancy Sensor The occupancy sensor detects vacancy for energy-save control. ▌2 Brightness Sensor The brightness sensor detects the brightness of the room for energy-save control. ▌3 Temperature & Humidity Sensor The sensor detects the room temperature and the relative humidity. ▌4 LED Indicator The LED indicator indicates the operation status in different colors.

  • Page 34: Error Information

    9-2. ERROR INFORMATION When an error occurs, the following screen will appear. Check the error status, stop the operation, and consult your dealer. 1. Error code, error unit, refrigerant address, date and time of occur- Error information rence, model name, and serial number will appear. Error code 2502 The model name and serial number will appear only if the informa-...
  • Page 35 • Checking the error information While no errors are occurring, page 2/2 of the error information can be Maintenance menu viewed by selecting ˝Error information˝ from the Maintenance menu. Error information Filter information Errors cannot be reset from this screen. Cleaning Main menu: Cursor...

  • Page 36: Service Menu

    9-3. 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.

  • Page 37: Test Run Operation

    9-4. TEST RUN 9-4-1. PAR-41MAA 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Test run Input maintenance info. Settings Check Others Select ˝Test run˝ with the F1 or F2 button, and press the [ ] button. 2.
  • Page 38 9-4-2. PAR-SL94B-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 39 9-4-4. PAR-U02MEDA Test run [MON] 10:45 Test run Fan speed Air direction Address Remain 2:00 　 ＞ 　 ＞ Pipe 　 ＞ 　 ＞ 9.0°C 　 ＞ 　 ＞ 　 ＞ 　 ＞ Swing Auto Louver LOSSNAY 　 ＞ 　 ＞ 　...

  • Page 40: Function Setting

    9-5. FUNCTION SETTING 9-5-1. PAR-41MAA Settings menu 1. Select ˝Service˝ from the Main menu, and press the [ ] button. Function setting Lossnay Select ˝Setting˝ from the Service menu, and press the [ ] button. Service menu: Cursor Select ˝Function setting˝, and press the [ ] button.

  • Page 41: Error History

    9-6. 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. 2. Select ˝Error history˝ with the F1 or F2 button, and press Check menu the [ ] button.

  • Page 42: Self-Diagnosis

    9-7. SELF-DIAGNOSIS 9-7-1. 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.
  • Page 43 9-7-2. PAR-SL94B-E < Malfunction-diagnosis method at maintenance service> Refrigerant [Procedure] address display 1. Press the CHECK button twice. CHECK • ˝CHECK˝ lights, and refrigerant address ˝00˝ blinks. CHECK display • Check that the remote controller's display has stopped before continuing. Temperature button TEMP...

  • Page 44: Remote Controller Check

    9-8. 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, Service menu: and press the [ ] button.
  • Page 45 9-9. SPECIAL FUNCTION OPERATION SETTING <PAR-U02MEDA> *M-NET remote controller cannot be connected with a refrigerant system which includes branch box. It is necessary to perform “group settings” and “Interlocked LOSSNAY” at making group settings of different refrigerant systems (multiple outdoor unit). (A) Group settings: Enter the indoor unit controlled by the remote controller, check the content of entries, and clear entries, etc.
  • Page 46 (a) Group setting Use this screen to register the indoor units and the AHC to be controlled from the controller. 1. Select an indoor unit or an AHC address in the [Address] field. [Group setting] The number of units that can be registered. Indoor unit: 16 units maximum Address AHC: 1 unit maximum...
  • Page 47 HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN © Copyright 2024 MITSUBISHI ELECTRIC CORPORATION Published: Mar. 2024 No. OCH851 Made in Japan Specifications are subject to change without notice.
  • Page 48 Related Links Model Number: PCFY-WL63VKM-E PCFY-WL40-100VKM-E Declaration Of Conformity PCFY-WL40-100VKM-E Installation Manual (RG79F664H01) PCFY-WL40-100VKM-E Instruction Book (RG79F663H01) PCFY-WL40-100VKM-E Service Manual (OCH851) PCFY-WL40_100VKM Parts Catalogue (OCB851) PCFY-WL40_100VKM-E Databook (MEES23K067)

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