Table of Contents
Advertisement
Quick Links
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Indoor unit
[Model names]
PKFY-MS63VKM-E
PKFY-MS63VKM-ET
PKFY-MS100VKM-E
PKFY-MS100VKM-ET
INDOOR UNIT
[Service Ref.]
PKFY-MS63VKM-E.TH
PKFY-MS63VKM-ER1.TH
PKFY-MS63VKM-ET.TH
PKFY-MS63VKM-ETR1.TH
PKFY-MS100VKM-E.TH
PKFY-MS100VKM-ER1.TH
PKFY-MS100VKM-ET.TH
PKFY-MS100VKM-ETR1.TH
Model name
indication
R32
Note:
• This manual describes only ser-
vice data of the indoor units.
Revision:
• PKFY-MS63VKM-ER1.TH,
PKFY-MS63VKM-ETR1.TH,
PKFY-MS100VKM-ER1.TH and
PKFY-MS100VKM-ETR1.TH
have been added in
REVISED EDITION-A.
OCH824 is void.
CONTENTS
TECHNICAL CHANGES ............................. 2
1. SAFETY PRECAUTION .......................... 3
2. PART NAMES ......................................... 9
3. SPECIFICATION ................................... 10
4. OUTLINES AND DIMENSIONS ............ 13
5. WIRING DIAGRAM ............................... 14
6. REFRIGERANT SYSTEM DIAGRAM ........ 15
7. TROUBLESHOOTING .......................... 16
8. DISASSEMBLY PROCEDURE ............. 25
9. REMOTE CONTROLLER ..................... 30
PARTS CATALOG (OCB824)
September 2024
No. OCH824
REVISED EDITION-A
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Mitsubishi Electric PKFY-MS63VKM-E
Summary of Contents for Mitsubishi Electric PKFY-MS63VKM-E
-
Page 1: Table Of Contents
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS September 2024 No. OCH824 REVISED EDITION-A TECHNICAL & SERVICE MANUAL Indoor unit Note: [Model names] [Service Ref.] • This manual describes only ser- PKFY-MS63VKM-E.TH PKFY-MS63VKM-E vice data of the indoor units. PKFY-MS63VKM-ER1.TH PKFY-MS63VKM-ET.TH PKFY-MS63VKM-ET Revision: • PKFY-MS63VKM-ER1.TH, PKFY-MS63VKM-ETR1.TH PKFY-MS63VKM-ETR1.TH, PKFY-MS100VKM-E.TH... -
Page 2: Technical Changes
TECHNICAL CHANGES PKFY-MS63VKM-E.TH PKFY-MS63VKM-ER1.TH PKFY-MS63VKM-ET.TH PKFY-MS63VKM-ETR1.TH PKFY-MS100VKM-E.TH PKFY-MS100VKM-ER1.TH PKFY-MS100VKM-ET.TH PKFY-MS100VKM-ETR1.TH The color of the front panel has been changed. OCH824A... -
Page 3: Safety Precaution
SAFETY PRECAUTION MEANINGS OF SYMBOLS DISPLAYED ON THE UNIT This mark is for R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit. WARNING Read the OPERATION MANUAL carefully before operation. Service personnel are required to carefully read the OPERATION MANUAL and INSTALLATION MANUAL before operation. Further information is available in the OPERATION MANUAL, INSTALLATION MANUAL, and the like. -
Page 4: Cautions For Service
[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 atmosphere.
- Page 7 a) Become familiar with the equipment and its operation. 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; •...
-
Page 8: Service Tools
Unit Electronic weighing scale [5] Service tools Use the below service tools as exclusive tools for R32 refrigerant. Tool name Specifications · Only for R32 · Use the existing fitting specifications . (UNF1/2) Gauge manifold · Use high-tension side pressure of 5.3MPa·G or over. ·... -
Page 9: Part Names
PART NAMES 2-1. Indoor unit Front panel Filter Air inlet Emergency operation switch Air outlet Louver Vane OCH824A... -
Page 10: Specification
SPECIFICATION 3-1. Specifications Model PKFY-MS63VKM-E.TH PKFY-MS100VKM-E.TH PKFY-MS63VKM-ET.TH PKFY-MS100VKM-ET.TH Power source 1-phase 220-230-240 V 50 Hz, 1-phase 220-230 V 60 Hz Cooling capacity 11.2 (Nominal) kcal/h 6,100 9,600 Btu/h 24,200 38,200 kcal/h 6,300 10,000 Power input *4 0.05 0.08 Current input *4 0.37... - Page 11 Model PKFY-MS63VKM-ER1.TH PKFY-MS100VKM-ER1.TH PKFY-MS63VKM-ETR1.TH PKFY-MS100VKM-ETR1.TH Power source 1-phase 220-230-240 V 50 Hz, 1-phase 220-230 V 60 Hz Cooling capacity 11.2 (Nominal) kcal/h 6,100 9,600 Btu/h 24,200 38,200 kcal/h 6,300 10,000 Power input *4 0.05 0.08 Current input *4 0.37 0.58 Heating capacity 12.5 (Nominal)
-
Page 12: Electrical Parts Specifications
3-2. Electrical parts specifications Service Ref. PKFY-MS63VKM-E(R1).TH PKFY-MS100VKM-E(R1).TH Symbol PKFY-MS63VKM-ET(R1).TH PKFY-MS100VKM-ET(R1).TH Parts name Room temperature TH21 Resistance 0°C/15 kΩ, 10°C/9.6 kΩ, 20°C/6.3 kΩ, 25°C/5.4 kΩ, 30°C/4.3 kΩ, 40°C/3.0 kΩ thermistor Liquid pipe thermistor TH22 Resistance 0°C/15 kΩ, 10°C/9.6 kΩ, 20°C/6.3 kΩ, 25°C/5.4 kΩ, 30°C/4.3 kΩ, 40°C/3.0 kΩ... -
Page 13: Outlines And Dimensions
OUTLINES AND DIMENSIONS 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 Receiver Front side (Grille open) Terminal block for power supply Terminal block for transmission Terminal block for MA-remote controller... -
Page 14: Wiring Diagram
WIRING DIAGRAM SYMBOL NAME SYMBOL NAME INDOOR CONTROLLER BOARD THERMISTOR TH23 PIPE TEMP. DETECTION / GAS1 (0ºC/15kΩ,25ºC/5.4kΩ) CONNECTOR CN32 REMOTE SWITCH CN51 CENTRALLY CONTROL TH24 PIPE TEMP. DETECTION / GAS2 (0ºC/15kΩ, 25ºC/5.4kΩ) CN52 REMOTE INDICATION CN105 IT TERMINAL ADDRESS BOARD BUZZER FAN SPEED SELECTOR SWITCH... -
Page 15: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM Refrigerant flow in cooling Refrigerant flow in heating Gas pipe thermistor (1) TH23 Strainer (#50mesh) Gas pipe Gas pipe thermistor (2) TH24 Flare connection Liquid pipe thermistor TH22 Heat exchanger Liquid pipe Linear expansion valve Strainer1 (#50mesh) Room temperature thermistor TH21 Strainer2 (#100mesh) Strainer (#100mesh) -
Page 16: Troubleshooting
TROUBLESHOOTING 7-1. COUNTERMEASURES FOR ERROR DURING TEST RUN If a problem occurs during test run, a code number will appear on the remote controller (or LED on the outdoor unit), and the air conditioning system will automatically cease operating. Refer to the connected outdoor unit service manual in order to determine the nature of the abnormality and apply corrective measure. - Page 17 7-2. HOW TO CHECK PARTS Parts name Checkpoints Room temperature Disconnect the connector then measure the resistance with a multimeter. thermistor (TH21) (At the ambient temperature 10°C - 30°C) Liquid pipe temperature Normal Abnormal thermistor (TH22) Refer to the next page for the details. 4.3 kΩ~9.6 kΩ...
- Page 18 7-2-1. Thermistor <Thermistor Characteristic graph> < Thermistor for lower temperature > Room temperature thermistor (TH21) Thermistors for Liquid pipe temperature thermistor (TH22) lower temperature Gas pipe temperature thermistor (TH23) (TH24) Thermistor R =15 k ± 3% Fixed number of B=3480 ± 2% Rt=15exp { 3480( 273+t 0°C...
- Page 19 <Output pulse signal and the valve operation> The output pulse shifts in the following order. Output Output Closing a valve: 1 → 2 → 3 → 4 → 1 (Phase) Opening a valve: 4 → 3 → 2 → 1 → 4 Notes: ø1 •...
- Page 20 7-2-3. 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 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. (It causes trouble of the indoor controller circuit board and fan motor.) Self check...
- Page 21 7-3. Function of Dip switch Operation by switch Effective Switch Pole Function Remarks timing Thermistor <Room Built-in remote Indoor unit Address board temperature> position controller <Initial setting> Filter clogging Provided Not provided detection Filter cleaning sign 2,500 hr 100 hr 1 2 3 4 5 6 7 8 9 10 NOTE: Fresh air intake *2...
- Page 22 Operation by switch Effective Switch Pole Function Remarks timing <Initial setting> Function ─ ─ ─ ─ ─ ─ 3 Pair No. of wireless remote controller Depends on the combination 4 Pair No. of wireless remote controller of SW22-3 and 22-4 •...
-
Page 23: Test Point Diagram
7-4. TEST POINT DIAGRAM 7-4-1. Indoor controller board CN105 CN2M LED1 IT Terminal M-NET transmission connecting wire Vane motor (MV1,MV2) Main power supply 24 − 30 VDC (non-polar) 12 VDC pulse output (Indoor unit: 220 - 230 - 240 V) CN60 Linear expansion valve(LEV) 12 VDC pulse output... - Page 24 7-4-2. PCB for wireless remote controller (W.B) CN301 Connect to the indoor controller board (I.B) 7-4-3. Switch board (S.B) SWE1 SWE2 Emergency operation (HEAT) Emergency operation (COOL) CN303 Connect to INDOOR CONTROLLER BOARD ( I.B ) CNRU 7-4-4. Address board (A.B) SW12 Address setting 10s digit Mode selection...
-
Page 25: Disassembly Procedure
DISASSEMBLY PROCEDURE NOTE: Turn OFF the power supply before disassembly. : Indicates the visible parts in the photos/figures. Be careful when removing heavy parts. : Indicates the invisible parts in the photos/figures. OPERATION PROCEDURE PHOTOS/FIGURES 1. REMOVING THE PANEL Photo 1 (1) Press and unlock the knobs on both sides of the front panel Front panel Screws... - Page 26 OPERATION PROCEDURE PHOTOS/FIGURES 3. REMOVING THE ELECTRICAL BOX Photo 4 Connect for ground Fixture (1) Remove the panel and the corner box. (Refer procedure to 1) (2) Remove the front and side electrical box covers (each 1 screw). (3) Remove the transmission wiring of TB5, the power supply wiring of TB2 and the wiring of MA-remote controller (TB15).
- Page 27 OPERATION PROCEDURE PHOTOS/FIGURES 6. REMOVING THE INDOOR FAN MOTOR AND THE Photo 7 LINE FLOW FAN Screw of the motor band (1) Remove the panel and the corner box. (Refer to procedure 1) Lead wire of pipe thermistor (2) Remove the electrical box (Refer to procedure 3) and the nozzle assembly (Refer to procedure 4).
- Page 28 OPERATION PROCEDURE PHOTOS/FIGURES 8. REMOVING THE HEAT EXCHANGER AND LEV Photo 11 (1) Remove the panel and the corner box. (Refer to procedure 1) Heat exchanger (2) Remove the electrical box (Refer to procedure 3) and the nozzle assembly (Refer to procedure 4). (3) Remove the water cover.
- Page 29 OPERATION PROCEDURE PHOTOS/FIGURES 11. REMOVING THE R32 SENSOR Photo 15 (see the bottom) (1) Remove the panel and corner box. (Refer to procedure 1) Screw of the R32 sensor (2) Remove the electrical box covers. (Refer to procedure 2) R32 sensor (3) Disconnect the R32 sensor connector (CNSA) on the indoor controller board.
-
Page 30: Remote Controller
REMOTE CONTROLLER 9-1. REMOTE CONTROLLER FUNCTIONS <PAR-41MAAB> 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 31 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 32: 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 Vertical air direction Horizontal air direction 3D i-see Sensor Timer menu Timer... - Page 33 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 Refrigerant system check Maintenance information Model name input Serial No. input Dealer information input Initialize maintenance info.
-
Page 34: 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 35 Main Setting and display items Setting details menu Initial Basic Main/Supervisor For a system that requires supervisor remote controller, set the remote setting setting controller to "Supervisor" from this setting. 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 36: 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 37 <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 38: 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 2502 The model name and serial number will appear only if the informa-... - Page 39 • 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 40: 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 41: Test Run Operation
9-4. TEST RUN 9-4-1. PAR-41MAAB 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 42 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.
-
Page 43: Function Setting
9-5. FUNCTION SETTING 9-5-1. PAR-41MAAB 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 44: 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 45: Self-Diagnosis
9-7. SELF-DIAGNOSIS 9-7-1. PAR-41MAAB 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 46 9-7-2. PAR-SL97A-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 47: 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 48 HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU TOKYO 100-8310, JAPAN Copyright 2023 MITSUBISHI ELECTRIC CORPORATION Issued: Sep. 2024 No. OCH824A Published: Aug. 2023 No. OCH824 Made in Japan Specifications are subject to change without notice.
Need help?
Do you have a question about the PKFY-MS63VKM-E and is the answer not in the manual?
Questions and answers