Mitsubishi Electric CITY MULTI PCFY Series Technical & Service Manual
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TECHNICAL & SERVICE MANUAL
Indoor unit
[Model names]
PCFY-P40VKM-E
PCFY-P63VKM-E
PCFY-P100VKM-E
PCFY-P125VKM-E
INDOOR UNIT
[Service Ref.]
PCFY-P40VKM-E
PCFY-P40VKM-ER1
PCFY-P40VKM-ER2
PCFY-P63VKM-E
PCFY-P63VKM-ER1
PCFY-P63VKM-ER2
PCFY-P100VKM-E
PCFY-P100VKM-ER1
PCFY-P100VKM-ER2
PCFY-P125VKM-E
PCFY-P125VKM-ER1
PCFY-P125VKM-ER2
Model name
indication
R410A
Revision:
• PCFY-P40VKM-ER2,
PCFY-P63VKM-ER2,
PCFY-P100VKM-ER2 and
PCFY-P125VKM-ER2
have been added in
REVISED EDITION-C.
OCH449B is void.
Note:
• This manual describes only
service data of the indoor units.
CONTENTS
TECHNICAL CHANGES ·························· 2
1. SAFETY PRECAUTION ······················· 2
2. PART NAMES AND FUNCTIONS ·········· 4
3. SPECIFICATION ································ 5
4. OUTLINES AND DIMENSIONS ············· 9
5. WIRING DIAGRAM ··························· 12
7. TROUBLESHOOTING ······················· 16
8. DISASSEMBLY PROCEDURE ············ 28
9. REMOTE CONTROLLER ··················· 34
PARTS CATALOG (OCB449)
September 2022
No. OCH449
REVISED EDITION-C
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Table of Contents
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Summary of Contents for Mitsubishi Electric CITY MULTI PCFY Series
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Page 1: Table Of Contents
September 2022 No. OCH449 REVISED EDITION-C TECHNICAL & SERVICE MANUAL R410A Indoor unit [Model names] [Service Ref.] PCFY-P40VKM-E PCFY-P40VKM-E Revision: • PCFY-P40VKM-ER2, PCFY-P40VKM-ER1 PCFY-P63VKM-ER2, PCFY-P100VKM-ER2 and PCFY-P40VKM-ER2 PCFY-P125VKM-ER2 have been added in PCFY-P63VKM-E PCFY-P63VKM-E REVISED EDITION-C. PCFY-P63VKM-ER1 OCH449B is void. PCFY-P63VKM-ER2 Note: PCFY-P100VKM-E... -
Page 2: Technical Changes
TECHNICAL CHANGES PCFY-P40VKM-ER1 PCFY-P40VKM-ER2 PCFY-P63VKM-ER1 PCFY-P63VKM-ER2 PCFY-P100VKM-ER1 PCFY-P100VKM-ER2 PCFY-P125VKM-ER1 PCFY-P125VKM-ER2 • A new controller board has been developed. PCFY-P40VKM-E PCFY-P40VKM-ER1 PCFY-P63VKM-E PCFY-P63VKM-ER1 PCFY-P100VKM-E PCFY-P100VKM-ER1 PCFY-P125VKM-E PCFY-P125VKM-ER1 • INDOOR CONTROLLER BOARD (I.B.) has been changed. (S/W version up) SAFETY PRECAUTION Cautions for units utilizing refrigerant R410A Use the following tools specifically designed for Do not use the existing refrigerant piping. -
Page 3: Cautions For Service
[1] Cautions for service (1) Perform service after recovering the refrigerant left in unit completely. (2) Do not release refrigerant in the air. (3) After completing service, charge the cycle with specified amount of refrigerant. (4) When performing service, install a filter drier simultaneously. Be sure to use a filter drier for new refrigerant. -
Page 4: Part Names And Functions
PART NAMES AND FUNCTIONS 2-1. INDOOR UNIT Louver Air outlet Vane Filter Air intake (Inside of Air intake) OCH449C... -
Page 5: Specification
SPECIFICATION 3-1. SPECIFICATIONS Model PCFY-P40VKM-E PCFY-P63VKM-E PCFY-P100VKM-E PCFY-P125VKM-E 1-phase 220-240V 50Hz , 1-phase 220V 60Hz Power source Cooling capacity *1 kW 11.2 14.0 ( Nominal ) *1 kcal/h 3 , 900 6 , 100 9 , 600 12 , 000 *1 Btu/h 15 , 400 24 , 200... -
Page 6: Electrical Parts Specifications
3-2. ELECTRICAL PARTS SPECIFICATIONS Service Ref. PCFY-P100VKM-E PCFY-P125VKM-E PCFY-P40VKM-E PCFY-P63VKM-E PCFY-P100VKM-ER1 Symbol PCFY-P40VKM-ER1 PCFY-P63VKM-ER1 PCFY-P125VKM-ER1 PCFY-P40VKM-ER2 PCFY-P63VKM-ER2 PCFY-P100VKM-ER2 PCFY-P125VKM-ER2 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 Liquid 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 Gas 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 7 3-4. NC CURVES PCFY-P40VKM-E PCFY-P63VKM-E PCFY-P40VKM-ER1 PCFY-P63VKM-ER1 PCFY-P40VKM-ER2 PCFY-P63VKM-ER2 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...
- Page 8 3-5. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS PCFY-P40VKM-E PCFY-P63VKM-E PCFY-P63VKM-ER1 PCFY-P40VKM-ER1 PCFY-P63VKM-ER2 PCFY-P40VKM-ER2 -100 -100 -150 -150 -200 -200 -250 -250 -300 -300 Airflow rate[m³/min] Airflow rate[m³/min] PCFY-P100/125VKM-E How to read curves PCFY-P100/125VKM-ER1 Duct characteristics PCFY-P100/125VKM-ER2 Curve in the at site graphs Q …...
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Page 9: Outlines And Dimensions
OUTLINES AND DIMENSIONS PCFY-P40VKM-E Unit : mm PCFY-P40VKM-ER1 PCFY-P40VKM-ER2 OCH449C... - Page 10 Unit : mm PCFY-P63VKM-E PCFY-P63VKM-ER1 PCFY-P63VKM-ER2 OCH449C...
- Page 11 Unit : mm PCFY-P100VKM-E PCFY-P125VKM-E PCFY-P100VKM-ER1 PCFY-P125VKM-ER1 PCFY-P100VKM-ER2 PCFY-P125VKM-ER2 OCH449C...
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Page 12: Wiring Diagram
WIRING DIAGRAM PCFY-P40VKM-E PCFY-P63VKM-E PCFY-P100VKM-E PCFY-P125VKM-E [LEGEND] NAME SYMBOL NAME SYMBOL I. B INDOOR CONTROLLER BOARD PIPE TEMP. DETECTION / LIQUID TH22 THERMISTOR (0°C / 15kΩ, 25°C / 5.4kΩ) CN27 CONNECTOR DAMPER CN32 REMOTE SWITCH TH23 PIPE TEMP. DETECTION / GAS (0°C / 15kΩ, 25°C / 5.4kΩ) CN51 CENTRALLY CONTROL... -
Page 13: Pcfy-P100Vkm-Er1
PCFY-P. VKM WIRING DIAGRAM PCFY-P. VKM PCFY-P40VKM-ER1 PCFY-P63VKM-ER1 PCFY-P100VKM-ER1 PCFY-P125VKM-ER1 [LEGEND] NAME SYMBOL NAME SYMBOL I. B INDOOR CONTROLLER BOARD TH22 THERMISTOR PIPE TEMP. DETECTION / LIQUID (0°C / 15kΩ, 25°C / 5.4kΩ) CN27 CONNECTOR DAMPER CN32 REMOTE SWITCH TH23 PIPE TEMP. - Page 14 PCFY-P40VKM-ER2 PCFY-P63VKM-ER2 PCFY-P100VKM-ER2 PCFY-P125VKM-ER2 OCH449C...
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Page 15: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM Refrigerant flow in cooling Refrigerant flow in heating Strainer #100 mesh (for -E/-ER1) or Gas pipe thermistor TH23 #50 mesh (for -ER2) Gas pipe Flare connection Liquid pipe thermistor TH22 Liquid pipe Heat exchanger Linear expansion valve Strainer1 (#50 mesh) Strainer2 (#100 mesh) Strainer (#100 mesh) -
Page 16: Troubleshooting
TROUBLESHOOTING 7-1. HOW TO CHECK THE PARTS Parts name Check points Room temperature Disconnect the connector then measure the resistance with a tester. thermistor (TH21) (At the ambient temperature of 10°C~30°C) Liquid pipe thermistor (TH22) Normal Abnormal (Refer to Thermistor characteristic graph.) Gas pipe thermistor 4.3kΩ~9.6kΩ... -
Page 17: Linear Expansion Valve
7-1-1. Thermistor <Thermistor characteristic graph> < Thermistor for lower temperature > Thermistors for Room temperature thermistor (TH21) lower temperature Liquid pipe temperature thermistor (TH22) Gas pipe temperature thermistor (TH23) Thermistor R =15kΩ ± 3% Fixed number of B=3480 ± 2% Rt=15exp { 3480 ( 273+t 0°C... - Page 18 <Output pulse signal and the valve operation> Output Output The output pulse shifts in the following order. (Phase) Closing a valve : 1 → 2 → 3 → 4 → 1 Opening a valve : 4 → 3 → 2 → 1 → 4 ø1 Note: ø2...
- Page 19 7-1-3. 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 20 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 21 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 22 PCFY-P40VKM-E PCFY-P63VKM-E PCFY-P100VKM-E PCFY-P125VKM-E PCFY-P40VKM-ER1 PCFY-P63VKM-ER1 PCFY-P100VKM-ER1 PCFY-P125VKM-ER1 ■ The black square ( ) indicates a switch position. Operation by switch Effective Switch Pole Remarks timing Before In case of replacing the indoor controller board, make sure to set the switch to the initial setting, which is shown below.
- Page 23 PCFY-P40VKM-ER2 PCFY-P63VKM-ER2 PCFY-P100VKM-ER2 PCFY-P125VKM-ER2 ■ 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 Not used Not used...
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Page 24: Test Point Diagram
7-3. TEST POINT DIAGRAM 7-3-1. Indoor controller board PCFY-P40VKM-E PCFY-P63VKM-E PCFY-P100VKM-E PCFY-P125VKM-E CN60 Linear expansion valve (LEV) CN3A output Connect to the terminal block (TB15) 12 VDC pulse output (MA-Remote controller connecting wire) : 8.7-13 VDC (Pin (+)) CN52 Remote indicator - : Status lamp 12VDC ( : +) Fan motor output (SW1-5 OFF) Vane motor output... - Page 25 PCFY-P40VKM-ER1 PCFY-P63VKM-ER1 PCFY-P100VKM-ER1 PCFY-P125VKM-ER1 CN60 Linear expansion valve (LEV) CN3A output Connect to the terminal block (TB15) 12 VDC pulse output (MA-Remote controller connecting wire) : 8.7-13 VDC (Pin (+)) CN52 Remote indicator - : Status lamp 12VDC ( : +) Fan motor output (SW1-5 OFF) Vane motor output Thermostat ON (SW1-5 ON)
- Page 26 PCFY-P40VKM-ER2 PCFY-P63VKM-ER2 PCFY-P100VKM-ER2 PCFY-P125VKM-ER2 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 Power supply for 12 VDC pulse MA-Remote controller...
- Page 27 7-3-2. Address board PCFY-P40VKM-E PCFY-P63VKM-E PCFY-P100VKM-E PCFY-P125VKM-E PCFY-P40VKM-ER1 PCFY-P63VKM-ER1 PCFY-P100VKM-ER1 PCFY-P125VKM-ER1 Ceiling height Function setting selector SW12 SW11 SW14 Address setting Address setting Option selector Branch No. 10ths DIGIT 1st DIGIT OCH449C...
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Page 28: Disassembly Procedure
DISASSEMBLY PROCEDURE Be careful when removing heavy parts. (Photo: PCFY-P125VKM-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 29 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 30 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 31 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 32 OPERATING PROCEDURE PHOTOS/FIGURES Photo 18 10. Removing the pipe thermistors / Liquid (TH22) and Gas (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 33 OPERATING PROCEDURE PHOTOS/FIGURES Photo 22 13. Removing the heat exchanger and LEV (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) Disconnect the connector CN60 (white) from the indoor controller board.
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Page 34: 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 35 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>...
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Page 36: 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 37 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.
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Page 38: 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 39 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...
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Page 40: Controller Interface
<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 41 <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.
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Page 42: 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. 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 43 • 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...
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Page 44: 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 45: 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 46 9-4-2. 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.
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Page 47: 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 48 9-5-2. 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] Flow of function selection procedure The flow of the function selection procedure is shown below.
- Page 49 9-5-3. 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.
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Page 50: 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 51: 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 52 9-7-2. 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 •...
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Page 53: 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 54 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 55 (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 56 HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN © Copyright 2008 MITSUBISHI ELECTRIC CORPORATION Issued: Sep. 2022 No.OCH449 REVISED EDITION-C Issued: Jun. 2021 No.OCH449 REVISED EDITION-B Issued: Dec. 2012 No. OCH449 REVISED EDITION-A Published: Dec. 2008 No. OCH449 Made in Japan...
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