Mitsubishi Electric PKFY-P10VLM-ER1.TH Technical & Service Manual
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Mitsubishi Electric PKFY-P10VLM-ER1.TH Technical & Service Manual

Split-type, heat pump air conditioners, wall mounted, r410a, indoor unit
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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Indoor unit
[Model Name]
PKFY-P10VLM-E
PKFY-P10VLM-ET
PKFY-P15VLM-E
PKFY-P15VLM-ET
PKFY-P20VLM-E
PKFY-P20VLM-ET
PKFY-P25VLM-E
PKFY-P25VLM-ET
PKFY-P32VLM-E
PKFY-P32VLM-ET
PKFY-P40VLM-E
PKFY-P40VLM-ET
PKFY-P50VLM-E
PKFY-P50VLM-ET
TCH071.indd 1
TCH071.indd 1
[Service Ref.]
PKFY-P10VLM-ER1.TH
PKFY-P10VLM-ETR1.TH
PKFY-P15VLM-ER1.TH
PKFY-P15VLM-ETR1.TH
PKFY-P20VLM-ER1.TH
PKFY-P20VLM-ETR1.TH
PKFY-P25VLM-ER1.TH
PKFY-P25VLM-ETR1.TH
PKFY-P32VLM-ER1.TH
PKFY-P32VLM-ETR1.TH
PKFY-P40VLM-ER1.TH
PKFY-P40VLM-ETR1.TH
PKFY-P50VLM-ER1.TH
PKFY-P50VLM-ETR1.TH
INDOOR UNIT
Model name
indication
R410A
CONTENTS
1. SAFETY PRECAUTION .......................... 2
3. SPECIFICATION ................................... 13
4. NOISE CRITERION CURVES ............... 16
6. WIRING DIAGRAM ............................... 20
8. TROUBLESHOOTING .......................... 21
9. DISASSEMBLY PROCEDURE ............. 29
PARTS CATALOG (TCB071)
October 2021
No. TCH071
17/11/2564 10:49:35
17/11/2564 10:49:35

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Summary of Contents for Mitsubishi Electric PKFY-P10VLM-ER1.TH

  • Page 1: Table Of Contents

    SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS October 2021 No. TCH071 TECHNICAL & SERVICE MANUAL R410A Indoor unit [Model Name] [Service Ref.] PKFY-P10VLM-ER1.TH PKFY-P10VLM-E PKFY-P10VLM-ET PKFY-P10VLM-ETR1.TH PKFY-P15VLM-ER1.TH PKFY-P15VLM-E PKFY-P15VLM-ET PKFY-P15VLM-ETR1.TH PKFY-P20VLM-ER1.TH PKFY-P20VLM-E PKFY-P20VLM-ET PKFY-P20VLM-ETR1.TH PKFY-P25VLM-ER1.TH PKFY-P25VLM-E PKFY-P25VLM-ET PKFY-P25VLM-ETR1.TH PKFY-P32VLM-ER1.TH PKFY-P32VLM-E PKFY-P32VLM-ET PKFY-P32VLM-ETR1.TH PKFY-P40VLM-ER1.TH...

  • Page 2: Safety Precaution

    SAFETY PRECAUTION Cautions for units utilizing refrigerant R410A Use a vacuum pump with a reverse flow check Do not use the existing refrigerant piping. valve. The old refrigerant and lubricant in the existing piping Vacuum pump oil may flow back into refrigerant cycle and contains a large amount of chlorine which may cause the that can cause deterioration of refrigerant oil, etc.

  • Page 3: Cautions For Service

    [1] Cautions for service (1) Perform service after collecting the refrigerant left in the 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: Parts Names And Functions

    PARTS NAMES AND FUNCTIONS 2-1. Indoor unit Filter Air intake Front Panel Emergency operation switch Operation indicator lamp Louver Air outlet Vane Remote control receiving section 2-2. Wired Remote Controller <PAR-41MAA> <PAR-21MAA> Wired remote controller function The functions which can be used are restricted according to each model. : Supported : Unsupported PAR-41MAA...
  • Page 5 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 6 Display The main display can be displayed in two different modes: “Full” and “Basic”. The factory 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 7: Menu Structure

    Menu structure Main menu Press the button. MENU Move the cursor to the desired item with the buttons, and press the button. SELECT Operation Vane · Louver · Vent. (Lossnay) High power Comfort Manual vane angle 3D i-see Sensor Timer menu Timer ON/OFF timer Auto-OFF timer...
  • Page 8 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 Model name input Serial No. input Dealer information input Initialize maintenance info.

  • Page 9: Main Menu List

    Main menu list Main Setting and display items Setting details menu Operation Vane · Louver · Vent. Use to set the vane angle. (Lossnay) • Select a desired vane setting from 5 different settings. Use to turn ON/OFF the louver. •...
  • Page 10 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 11: Wired Remote Controller

    WIRED REMOTE CONTROLLER <PAR-21MAA> “Sensor” indication Display Section Displays when the remote controller sensor is used. Day-of-Week For the purposes of explanation, Shows the current day of the week. all parts of the display are shown. During actual operation, only Time/Timer Display the relevant items will be lit.

  • Page 12: Wireless Remote Controller

    2-3. Wireless remote controller 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*...

  • Page 13: Specification

    SPECIFICATION 3-1. SPECIFICATIONS Model PKFY-P10VLM-E PKFY-P15VLM-E PKFY-P20VLM-E PKFY-P25VLM-E PKFY-P10VLM-ET PKFY-P15VLM-ET PKFY-P20VLM-ET PKFY-P25VLM-ET Power source 1-phase 220-240 V 50 Hz, 1-phase 220-230 V 60 Hz Cooling capacity kcal/h (Nominal) 1000 1500 1900 2400 BTU/h 4100 5800 7500 9600 Power input 0.02 0.02 0.02 0.03...
  • Page 14 Model PKFY-P32VLM-E PKFY-P40VLM-E PKFY-P50VLM-E PKFY-P32VLM-ET PKFY-P40VLM-ET PKFY-P50VLM-ET Power source 1-phase 220-240 V 50 Hz, 1-phase 220-230 V 60 Hz Cooling capacity (Nominal) kcal/h 3100 3900 4800 BTU/h 12300 15400 19100 Power input 0.04 0.04 0.05 Current input A 0.35 0.35 0.45 Heating capacity (Nominal)

  • Page 15: Electrical Parts Specifications

    3-2. ELECTRICAL PARTS SPECIFICATIONS Service ref. PKFY-P10VLM-(ER1/ETR1).TH PKFY-P32VLM-(ER1/ETR1).TH PKFY-P15VLM-(ER1/ETR1).TH PKFY-P40VLM-(ER1/ETR1).TH PKFY-P20VLM-(ER1/ETR1).TH PKFY-P50VLM-(ER1/ETR1).TH Symbol PKFY-P25VLM-(ER1/ETR1).TH Parts name Room temperature TH21 Resistance 0:/15k", 10:/9.6k", 20:/6.3k", 25:/5.4k", 30:/4.3k", 40:/3.0k" detection thermistor Pipe temperature TH22 Resistance 0:/15k", 10:/9.6k", 20:/6.3k", 25:/5.4k", 30:/4.3k", 40:/3.0k" detection thermistor/liquid Pipe temperature TH23 Resistance 0:/15k", 10:/9.6k", 20:/6.3k", 25:/5.4k", 30:/4.3k", 40:/3.0k"...

  • Page 16: Noise Criterion Curves

    NOISE CRITERION CURVES NOISE CRITERION CURVES PKFY-P15VLM-(E/ET) PKFY-P10VLM-(E/ET) NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 Approximate minimum audible limit on NC-20 NC-20 Approximate minimum continuous noise audible limit on continuous noise 1000 2000 4000 8000 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz...

  • Page 17: Band Center Frequencies, Hz

    PKFY-P40VLM-(E/ET) PKFY-P32VLM-(E/ET) NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 Approximate minimum Approximate minimum audible limit on audible limit on continuous noise continuous noise NC-20 NC-20 1000 2000 4000 8000 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz PKFY-P50VLM-(E/ET) NC-70...

  • Page 18: Outlines And Dimensions

    OUTLINES AND DIMENSIONS PKFY-P10VLM-(ER1/ETR1).TH PKFY-P15VLM-(ER1/ETR1).TH PKFY-P20VLM-(ER1/ETR1).TH PKFY-P25VLM-(ER1/ETR1).TH PKFY-P32VLM-(ER1/ETR1).TH Unit: mm TCH071 TCH071.indd 18 TCH071.indd 18 17/11/2564 10:49:53 17/11/2564 10:49:53...
  • Page 19 PKFY-P40VLM-(ER1/ETR1).TH PKFY-P50VLM-(ER1/ETR1).TH Unit: mm TCH071 TCH071.indd 19 TCH071.indd 19 17/11/2564 10:49:56 17/11/2564 10:49:56...

  • Page 20: Wiring Diagram

    WIRING DIAGRAM PKFY-P10VLM-(ER1/ETR1).TH PKFY-P15VLM-(ER1/ETR1).TH PKFY-P20VLM-(ER1/ETR1).TH PKFY-P25VLM-(ER1/ETR1).TH PKFY-P32VLM-(ER1/ETR1).TH PKFY-P40VLM-(ER1/ETR1).TH PKFY-P50VLM-(ER1/ETR1).TH E/ET TCH071 TCH071.indd 20 TCH071.indd 20 17/11/2564 10:49:56 17/11/2564 10:49:56...

  • Page 21: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM PKFY-P10VLM-(ER1/ETR1).TH PKFY-P15VLM-(ER1/ETR1).TH PKFY-P20VLM-(ER1/ETR1).TH PKFY-P25VLM-(ER1/ETR1).TH PKFY-P32VLM-(ER1/ETR1).TH PKFY-P40VLM-(ER1/ETR1).TH PKFY-P50VLM-(ER1/ETR1).TH Pipe temperature detection thermistor/gas (TH23) Gas pipe Flare Strainer Unit: mm (inch) (#100mesh) Pipe temperature detection thermistor/liquid Gas pipe {12.7 (1/2”) (TH22) Liquid pipe {6.35 (1/4”) Liquid pipe Strainer Heat exchanger (#100mesh) Linear expansion valve...
  • Page 22 8-1-1. Thermistor <Thermistor characteristic graph> < Thermistor for lower temperature > Room temperature detection thermistor (TH21) Thermistor for Pipe temperature detection thermistor/liquid (TH22) lower temperature Pipe temperature detection thermistor/gas (TH23) Thermistor R =15 k" ± 3% Fixed number of B=3480 ± 2% Rt=15exp { 3480( 273+t 15 k"...
  • Page 23 8-1-3. DC Fan motor (fan motor/indoor controller board) Check method of indoor fan motor (fan motor/indoor controller board) Notes · High voltage is applied to the connector (CNMF) for the fan motor. Pay attention to the service. · Do not pull out the connecter (CNMF) for the motor with the power supply on. (It causes trouble of the indoor controller board and fan motor.) Self check Conditions : The indoor fan cannot rotate.
  • Page 24 <Output pulse signal and the valve operation> The output pulse shifts in below order. Output Output Closing a valve : 1 → 2 → 3 → 4 → 1 (Phase) Opening a valve : 4 → 3 → 2 → 1 → 4 •...
  • Page 25 8-2. FUNCTION OF DIP SWITCH PKFY-P10VLM-(ER1/ETR1).TH PKFY-P15VLM-(ER1/ETR1).TH PKFY-P20VLM-(ER1/ETR1).TH PKFY-P25VLM-(ER1/ETR1).TH PKFY-P32VLM-(ER1/ETR1).TH PKFY-P40VLM-(ER1/ETR1).TH PKFY-P50VLM-(ER1/ETR1).TH The black square ( ) indicates a switch position. Operation by switch Effective Switch Pole Function Remarks timing Thermistor Built-in remote <Intake temperature Indoor unit Address board controller detection>...
  • Page 26 The black square ( ) indicates a switch position. Effective Switch Pole Function Remarks timing Address board Fan speed can be changed depending on SWA <Initial setting> (High ceiling) setting. It follows as the left table. Under Setting operation (Standard) (Fan speed) PKFY-P ** VLM-(E/ET) (Silent)

  • Page 27: Test Point Diagram

    8-3. TEST POINT DIAGRAM 8-3-1. Indoor controller board (I.B) PKFY-P10VLM-(ER1/ETR1).TH PKFY-P15VLM-(ER1/ETR1).TH PKFY-P20VLM-(ER1/ETR1).TH PKFY-P25VLM-(ER1/ETR1).TH PKFY-P32VLM-(ER1/ETR1).TH PKFY-P40VLM-(ER1/ETR1).TH PKFY-P50VLM-(ER1/ETR1).TH 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 −...
  • Page 28 8-3-2. PCB FOR WIRELESS REMOTE CONTROLLER (W.B), SWITCH BOARD (S.B) and LED BOARD (L.B) PKFY-P10VLM-(ER1/ETR1).TH PKFY-P15VLM-(ER1/ETR1).TH PKFY-P20VLM-(ER1/ETR1).TH PKFY-P25VLM-(ER1/ETR1).TH PKFY-P32VLM-(ER1/ETR1).TH PKFY-P40VLM-(ER1/ETR1).TH PKFY-P50VLM-(ER1/ETR1).TH PCB FOR WIRELESS SWITCH BOARD (S.B) LED BOARD (L.B) REMOTE CONTROLLER (W.B) SWE1 Emergency operation (HEAT) SWE2 CN302 REC1 Emergency operation (COOL) Connect to Receiving unit...

  • Page 29: Disassembly Procedure

    DISASSEMBLY PROCEDURE PKFY-P10VLM-(ER1/ETR1).TH PKFY-P15VLM-(ER1/ETR1).TH PKFY-P20VLM-(ER1/ETR1).TH PKFY-P25VLM-(ER1/ETR1).TH PKFY-P32VLM-(ER1/ETR1).TH PKFY-P40VLM-(ER1/ETR1).TH PKFY-P50VLM-(ER1/ETR1).TH NOTE: Turn OFF the power supply before assembly. Be careful when removing heavy parts. OPERATION PROCEDURE PHOTOS/FIGURES 1. REMOVING THE PANEL Photo 1 (1) Insert the driver to the hole at VANE LOWER shaft and VANE UPPER shaft VANE UPPER slide the VANE LOWER shaft (2 places each).
  • Page 30 OPERATION PROCEDURE PHOTOS/FIGURES 3. REMOVING THE ADDRESS BOARD, THE INDOOR Photo 4 CONTROLLER BOARD, THE WIRELESS Holder of wireless remote CONTROLLER BOARD, LED BOARD Switch board holder controller board and LED board (Holder of switch board) (1) Remove the panel and the corner box. (Refer to procedure 1) Address board (2) Remove the front and side electrical box covers (each 2...
  • Page 31 OPERATION PROCEDURE PHOTOS/FIGURES 6. REMOVING THE INDOOR FAN MOTOR AND THE Photo 8 LINE FLOW FAN Lead wire of pipe thermistor (1) Remove the panel and the corner box. (Refer to procedure 1) (2) Remove the electrical box (Refer to procedure 2) and the Motor band nozzle assembly (Refer to procedure 4).
  • Page 32 OPERATION PROCEDURE PHOTOS/FIGURES 8. REMOVING THE HEAT EXCHANGER AND LEV Photo 12 (1) Remove the panel and the corner box (Refer to procedure 1). (2) Remove the electrical box (Refer to procedure 3) and the Heat exchanger nozzle assembly (Refer to procedure 4). (3) Remove the water cover.
  • Page 33 TCH071 TCH071.indd 33 TCH071.indd 33 17/11/2564 10:50:08 17/11/2564 10:50:08...
  • Page 34 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 Published: Oct. 2021. No. TCH071 Specifications are subject to change without notice.

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