Mitsubishi Electric PLFY-P20VBM-E.UK Technical & Service Manual
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Mitsubishi Electric PLFY-P20VBM-E.UK Technical & Service Manual

Mitsubishi Electric PLFY-P20VBM-E.UK Technical & Service Manual

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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Indoor unit
[Model Name]
PLFY-P20VBM-E
PLFY-P25VBM-E
PLFY-P32VBM-E
PLFY-P40VBM-E
PLFY-P50VBM-E
PLFY-P63VBM-E
PLFY-P80VBM-E
PLFY-P100VBM-E
PLFY-P125VBM-E
[Service Ref.]
Refer to page 2.
Model name
indication
INDOOR UNIT
REVISED EDITION-E
Revision:
•
Added
PLFY-P20VBM-E.UK and
PLFY-P25VBM-E.UK in
REVISED EDITION-E.
• Some descriptions have
been modified.
• Please void OCH413
REVISED EDITION-D.
Notes:
• This manual describes ser-
vice data of the indoor units
only.
• RoHS compliant products
have <G> mark on the spec
name plate.
CONTENTS
1. TECHNICAL CHANGES ......................... 3
2. SAFETY PRECAUTION .......................... 4
4. SPECIFICATIONS ................................. 13
5. 4-WAY AIR FLOW SYSTEM ................. 19
7. WIRING DIAGRAM ............................... 23
9. TROUBLESHOOTING .......................... 26
10 . SPECIAL FUNCTION ........................... 35
11. DISASSEMBLY PROCEDURE ............. 42
PARTS CATALOG (OCB413)
July 2014
No. OCH413

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Summary of Contents for Mitsubishi Electric PLFY-P20VBM-E.UK

  • Page 1: Table Of Contents

    July 2014 No. OCH413 REVISED EDITION-E TECHNICAL & SERVICE MANUAL Indoor unit [Model Name] Revision: PLFY-P20VBM-E • Added PLFY-P20VBM-E.UK and PLFY-P25VBM-E PLFY-P25VBM-E.UK in REVISED EDITION-E. PLFY-P32VBM-E • Some descriptions have been modified. PLFY-P40VBM-E • Please void OCH413 REVISED EDITION-D. PLFY-P50VBM-E...
  • Page 2 [Service Ref.] PLFY-P20VBM-E.UK PLFY-P63VBM-E.UK PLFY-P25VBM-E.UK PLFY-P63VBM-E PLFY-P32VBM-E.UK PLFY-P63VBM-ER2.UK PLFY-P32VBM-E PLFY-P63VBM-ER3.UK PLFY-P32VBM-ER2.UK PLFY-P80VBM-E.UK PLFY-P32VBM-ER3.UK PLFY-P80VBM-E PLFY-P40VBM-E.UK PLFY-P80VBM-ER2.UK PLFY-P40VBM-E PLFY-P80VBM-ER3.UK PLFY-P40VBM-ER2.UK PLFY-P100VBM-E.UK PLFY-P40VBM-ER3.UK PLFY-P100VBM-ER2.UK PLFY-P50VBM-E.UK PLFY-P100VBM-ER3.UK PLFY-P50VBM-E PLFY-P125VBM-E.UK PLFY-P50VBM-ER2.UK PLFY-P125VBM-ER2.UK PLFY-P50VBM-ER3.UK PLFY-P125VBM-ER3.UK OCH413E...

  • Page 3: Technical Changes

    TECHNICAL CHANGES Service ref. have been changed as follows. PLFY-P32VBM-ER2.UK PLFY-P32VBM-ER3.UK PLFY-P40VBM-ER2.UK PLFY-P40VBM-ER3.UK PLFY-P50VBM-ER2.UK PLFY-P50VBM-ER3.UK PLFY-P63VBM-ER2.UK PLFY-P63VBM-ER3.UK PLFY-P80VBM-ER2.UK PLFY-P80VBM-ER3.UK PLFY-P100VBM-ER2.UK PLFY-P100VBM-ER3.UK PLFY-P125VBM-ER2.UK PLFY-P125VBM-ER3.UK INDOOR CONTROLLER BOARD (I.B) has been changed. (S/W version up) PLP-6BAJ (Automatic filter elevation panel, option) The controller board (U.B) has been changed. (only for the panel but not for the service part) PLFY-P32VBM-E PLFY-P32VBM-ER2.UK PLFY-P40VBM-E...

  • Page 4: Safety Precaution

    SAFETY PRECAUTION Cautions for units utilizing refrigerant R410A Use the following tools specifically designed for Do not use the existing refrigerant piping. use with R410A refrigerant. The old refrigerant and lubricant in the existing piping The following tools are necessary to use R410A refrigerant. contains a large amount of chlorine which may cause the Tools for R410A lubricant deterioration of the new unit.
  • Page 5 [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 6: Parts Names And Functions

    PARTS NAMES AND FUNCTIONS 3-1. INDOOR UNIT Drain pipe Filter Air outlet Liquid pipe Gas pipe i-see sensor (option) Vane Air intake (Intake grille) OCH413E...
  • Page 7 3-2. WIRELESS REMOTE CONTROLLER CHECK TEST RUN display CHECK and TEST RUN display indicate that the unit is being checked or test-run. display MODEL SELECT Blinks when model is selected. display Lights up while the signal is transmitted to the indoor unit when the button is pressed. display SET TEMP.
  • Page 8 3-3. WIRED REMOTE CONTROLLER <PAR-30MAA><PAR-31MAA> Wired remote controller function The functions which can be used are restricted according to each model. : Supported : Unsupported PAR-30MAA/PAR-31MAA Function PAR-21MAA Slim City multi Body Product size H × W × D (mm) 120 ×...
  • Page 9 Room Set temp. Cool Auto Mode Temp. 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. <Full mode> <Basic mode>...
  • Page 10 Menu structure Press the button. MENU Move the cursor to the desired item with the buttons, and press the button. Main menu SELECT Vane · Louver · Vent. (Lossnay) High power Timer On / Off timer Auto-Off timer Weekly timer Restriction Temp.
  • Page 11 Main menu list Setting and display items Setting details Vane · Louver · Vent. (Lossnay) Use to set the vane angle. • Select a desired vane setting from five different settings. Use to turn ON / OFF the louver. • Select a desired setting from "ON" and "OFF." Use to set the amount of ventilation.
  • Page 12 3-4. 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 13: Specifications

    SPECIFICATIONS 4-1. SPECIFICATIONS Service Ref. PLFY-P40VBM-E PLFY-P20VBM-E PLFY-P25VBM-E PLFY-P32VBM-E Power source 1-phase 220-240V 50Hz, 1-phase 220V 60Hz Cooling capacity 3,900 kcal/ h 3,100 3,100 3,100 (Nominal) 15,400 BTU/ h 12,300 12,300 12,300 4,000 3,150 kcal/ h 3,150 3,150 0.04 0.03 0.03 Power input 0.03...
  • Page 14 Service Ref. PLFY-P100VBM-E PLFY-P50VBM-E PLFY-P63VBM-E PLFY-P80VBM-E Power source 1-phase 220-240V 50Hz, 1-phase 220V 60Hz 11.2 Cooling capacity kcal/ h 4,800 6,100 7,700 9,600 (Nominal) BTU/ h 19,100 24,200 30,700 38,200 kcal/ h 5,000 6,300 8,000 10,000 0.05 Power input 0.04 0.07 0.15 Current input...
  • Page 15 Service Ref. PLFY-P125VBM-E Power source 1-phase 220-240V 50Hz, 1-phase 220V 60Hz 14.0 Cooling capacity kcal/ h 12,000 (Nominal) BTU/ h 47,800 kcal/ h 12,500 0.16 Power input Current input 1.07 16.0 Heating capacity kcal/ h 13,800 (Nominal ) BTU/ h 54,600 Power input 0.15...
  • Page 16 4-2. ELECTRICAL PARTS SPECIFICATIONS Service Ref. PLFY-P20VBM-E.UK PLFY-P25VBM-E.UK PLFY-P40VBM-E.UK PLFY-P50VBM-E.UK PLFY-P63VBM-E.UK Symbol PLFY-P32VBM-E.UK PLFY-P40VBM-E PLFY-P50VBM-E PLFY-P63VBM-E PLFY-P32VBM-E PLFY-P40VBM-ER2.UK PLFY-P50VBM-ER2.UK PLFY-P63VBM-ER2.UK PLFY-P32VBM-ER2.UK PLFY-P40VBM-ER3.UK PLFY-P50VBM-ER3.UK PLFY-P63VBM-ER3.UK PLFY-P32VBM-ER3.UK Parts name Room temperature TH21 Resistance 0:/15 k", 10:/9.6 k", 20:/6.3 k", 25:/5.4 k", 30:/4.3 k", 40:/3.0 k"...
  • Page 17 (1, 2) Rated to 250 V 10A* terminal block *Refer to WIRING DIAGRAM for the supplied voltage. 4-3. SOUND LEVEL Sound level at anechoic room : Low- Mid2-Mid1 -High Service Ref. Sound level dB (A) PLFY-P20VBM-E.UK PLFY-P·VBM-E PLFY-P25VBM-E.UK 27-28-29-31 PLFY-P32VBM-E PLFY-P32VBM-ER2.UK PLFY-P32VBM-ER3.UK PLFY-P40VBM-E PLFY-P40VBM-ER2.UK...
  • Page 18 4-4. NC CURVES PLFY-P20VBM-E.UK PLFY-P25VBM-E.UK PLFY-P40VBM-E PLFY-P50VBM-E PLFY-P32VBM-E PLFY-P40VBM-ER2.UK PLFY-P50VBM-ER2.UK PLFY-P32VBM-ER2.UK PLFY-P40VBM-ER3.UK PLFY-P50VBM-ER3.UK PLFY-P32VBM-ER3.UK External static pressure : 0Pa External static pressure : 0Pa External static pressure : 0Pa Power source : 220,230,240V, 50Hz / 220V, 60Hz Power source : 220,230,240V, 50Hz / 220V, 60Hz...

  • Page 19: Way Air Flow System

    4-WAY AIR FLOW SYSTEM 5-1. PLACEMENT OF THE AIR OUTLETS • For this grille, the blowout direction comes in 11 patterns. Also, by setting the remote controller to the appropriate settings, you can adjust the airflow and speed. Select the settings from Table1 according to the location in which you want to install the unit.
  • Page 20 5-2. BRANCH DUCT HOLE AND FRESH AIR INTAKE HOLE At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when required. • A fresh air intake hole for the optional multi function casement can also be made. Note: The figures marked with * in the drawing below represent the dimensions of the main unit excluding those of the optional multi function casement.
  • Page 21 5-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS PLFY-P20/25/32/40/50/63/80VBM-E.UK PLFY-P32/40/50/63/80VBM-E PLFY-P32/40/50/63/80VBM-ER2.UK PLFY-P32/40/50/63/80VBM-ER3.UK Multi function casement + Standard filter Multi function casement + High efficiency filter 2 - inlet 2 - inlet -100 -100 -150 -150 1 - inlet 1 - inlet -200 -200 Airflow rate [m...

  • Page 22: Outlines And Dimensions

    OUTLINES AND DIMENSIONS PLFY-P20/25/32/40/50/63/80/100/125VBM-E.UK PLFY-P32/40/50/63/80VBM-E PLFY-P32/40/50/63/80/100/125VBM-ER2.UK Unit: mm PLFY-P32/40/50/63/80/100/125VBM-ER3.UK Ceiling hole 20~45 860~910 20~45 Detail connecting of branch duct(Both aspects) Fresh air Suspension bolt pitch Cut out hole intake hole Indoor/outdoor unit connecting terminal block Power supply Branch duct hole [175 14-[2.8 terminal block...

  • Page 23: Wiring Diagram

    WIRING DIAGRAM PLFY-P32/40/50/63/80/100/125VBM-E.UK PLFY-P32/40/50/63/80VBM-E PLFY-P32/40/50/63/80/100/125VBM-ER2.UK [LEGEND] SYMBOL NAME SYMBOL NAME SYMBOL NAME I. B INDOOR CONTROLLER BOARD TERMINAL POWER SUPPLY OPTION PART CN27 TRANSMISSION CONNECTOR DAMPER BLOCK PCB FOR WIRELESS REMOTE CONTROLLER REMOTE SWITCH MA-REMOTE CONTROLLER CN32 TB15 BUZZER CN51 CENTRALLY CONTROL ROOM TEMP.
  • Page 24 PLFY-P20/25VBM-E.UK PLFY-P32/40/50/63/80/100/125VBM-ER3.UK LEGEND SYMBOL NAME SYMBOL NAME SYMBOL NAME I. B INDOOR CONTROLLER BOARD DRAIN-UP MACHINE ADDRESS BOARD A. B CN27 CONNECTOR DAMPER DRAIN FLOAT SWITCH SWITCH CEILING HEIGHT SELECTOR CN32 REMOTE SWITCH LINEAR EXPANSION VALVE DISCHARGE OUTLET NUMBER CN51 CENTRALLY CONTROL FAN MOTOR SELECTOR...

  • Page 25: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM PLFY-P20/25/32/40/50/63/80/100/125VBM-E.UK PLFY-P32/40/50/63/80VBM-E PLFY-P32/40/50/63/80/100/125VBM-ER2.UK PLFY-P32/40/50/63/80/100/125VBM-ER3.UK Pipe temperature detection thermistor/ gas Strainer (#100mesh) TH23 Gas pipe Pipe temperature detection thermistor/ liquid TH22 Flare connection Liquid pipe Heat exchanger Linear expansion valve Strainer1 (#50mesh) Strainer2 (#100mesh) Strainer (#100mesh) Room temparature detection thermistor TH21 Unit: mm (in) Capacity...

  • Page 26: Troubleshooting

    TROUBLESHOOTING 9-1. HOW TO CHECK THE PARTS PLFY-P20/25/32/40/50/63/80/100/125VBM-E.UK PLFY-P32/40/50/63/80VBM-E PLFY-P32/40/50/63/80/100/125VBM-ER2.UK PLFY-P32/40/50/63/80/100/125VBM-ER3.UK Parts name Check points Room temp. detection Disconnect the connector then measure the resistance with a tester. thermistor (TH21) (At the ambient temperature of 10 to 30:) Pipe temp. detection thermistor/ liquid(TH22) Normal Abnormal...
  • Page 27 9-1-1. Thermistor <Thermistor characteristic graph> < Thermistor for lower temperature > Thermistor for Room temperature detection thermistor (TH21) lower temperature Pipe temperature deection thermistor/ liquid (TH22) Pipe temperature detection thermistor/ gas (TH23) Thermistor R =15 kΩ ± 3% Fixed number of B=3480 ± 2% Rt=15exp { 3480( 273+t 15 kΩ...
  • Page 28 <Output pulse signal and the valve operation> Output Output (Phase) Closing a valve : 1 → 2 → 3 → 4 → 1 Opening a valve : 4 → 3 → 2 → 1 → 4 The output pulse shifts in above order. •...
  • Page 29 9-1-3. DC an motor (fan motor/indoor controller board) Check method of indoor fan motor (fan motor/indoor controller 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 board and fan motor) Self check Conditions : The indoor fan cannot turn around.
  • Page 30 The black square (■) indicates a switch position. 9-2. FUNCTION OF DIP SWITCH Operation by switch Effective Switch Pole Function Remarks timing Thermistor <Room temperature Built-in remote controller Indoor unit Address board detection> position Filter clogging detection Provided Not provided <Initial setting>...
  • Page 31 Effective Switch Pole Operation by switch Remarks timing Address board Ceiling height can be changed depends on SWB setting. (High ceiling) <Initial setting> Ceiling (Standard) height PLFY-P20/25/32/40/50/63·P80VBM-E (Silent) selector Silent Standard High ceiling 4 direction 2.5m 2.7m 3.5m 3 direction 2.7m 3.0m 3.5m...
  • Page 32 Effective Switch Pole Operation by switch Remarks timing <Initial setting> • To operate each indoor unit by each remote controller when installed 2 indoor units or more are near, Pair No. setting is necessary. Pattern A 1 Pair No. setting is available with the 4 patterns (Setting patters A to D). 2 Make setting for J41, J42 of indoor controller board and the Pair No.
  • Page 33 9-3. TEST POINT DIAGRAM 9-3-1. Indoor controller board PLFY-P20/25/32/40/50/63/80/100/125VBM-E.UK PLFY-P32/40/50/63/80VBM-E PLFY-P32/40/50/63/80/100/125VBM-ER2.UK PLFY-P32/40/50/63/80/100/125VBM-ER3.UK CN6Y CN60 i-See sensor motor output Linear expansion valve (LEV) 12 V DC pulse output output 12 V DC pulse output CN3A CN4Y Connect to the terminal block (TB15) i-See sensor (MA-Remote controller connecting wire) 1–3: 8.7–13 V DC (Pin1 (+))
  • Page 34 9-3-2. Address board PLFY-P20/25/32/40/50/63/80/100/125VBM-E.UK PLFY-P32/40/50/63/80VBM-E PLFY-P32/40/50/63/80/100/125VBM-ER2.UK PLFY-P32/40/50/63/80/100/125VBM-ER3.UK Ceiling height Discharge outlet Function setting selector number selector SW12 SW11 SW14 Address setting Address setting Branch No. Option selector 10ths digit 1s digit OCH413E...

  • Page 35: Special Function

    SPECIAL FUNCTION 10-1. HOW TO PERFORM THE UP/DOWN OPERATION OF THE AIR INTAKE GRILLE 10-1-1. Setting up the lowering distance of air intake grille Unit You can set up 8 different stages of lowering distance for Decorative the air intake grille according to the set up location if desired. panel Note that, as a factory default, the decorative panel will automatically stop at 1.6 m from the ceiling surface.
  • Page 36 10-1-3. How to perform the up/down operation using wired remote controller <PAR-30MAA><PAR-31MAA> Maintenance menu Select "Maintenance" from the Main menu, and press the button. Auto descending panel Manual vane angle Select "Auto descending panel" with the F1 or F2 button, and press the button.
  • Page 37 10-1-4. How to perform the up/down operation using wired remote controller (PAR-21MAA) ■ General Operation Raise or lower all the air intake grilles managed by the remote controller at the same time. Install the remote controller in a place where you can observe all the air-conditioners. Otherwise, the lowering grille may make contact with something and cause damage to it.
  • Page 38 ■ Up/down operation with the individual specified air-conditioner (when used in combination with Mr. SLIM model) Raise or lower the air intake grille of the specific air-conditioner that you select from all that are managed by that remote controller. 1) Ensure that the air-conditioner is not running. Ensure that the air-conditioner is not running.
  • Page 39 10-2. OPERATION (AUTO DESCENDING PANEL: PLP-6BAJ) (1) Normal operation 1 UP/DOWN Wire 1b Air intake grille is raised/lowered by UP/DOWN UP/DOWN commands of UP and DOWN. Machine 2 Machine 1 Air intake grille does not move under the state of no-load detection or obstacle detection. Air intake grille stops automatically at the set lowering distance from the ceiling level.
  • Page 40 10-3. ELECTRICAL CIRCUIT (Controller board and wiring diagram (Panel)) 10-3-1. DIP SW 22 type SW22 Panel Indoor unit (WHT) LS21 CN3G CN90 (WHT) (BLK) CN2G (BLK) CN3G (BLK) FUSE CN22 (BLU) CN2F (BLK) CNAC (WHT) CN2E LS21 (RED) CN2C CN2B (WHT) GRN/YLW (WHT)
  • Page 41 10-3-3. Check point of trouble <LED (SW22 type) /LED2 (SW2 type) display> Turn OFF : No power supply Blink : Storage detection switch ON (short) One blink : Storage detection switch OFF (open) Two blinks : Tension detection switch OFF (open) <controller board>...

  • Page 42: Disassembly Procedure

    DISASSEMBLY PROCEDURE PLFY-P20/25/32/40/50/63/80/100/125VBM-E.UK PLFY-P32/40/50/63/80VBM-E PLFY-P32/40/50/63/80/100/125VBM-ER2.UK PLFY-P32/40/50/63/80/100/125VBM-ER3.UK Be careful when removing heavy parts. OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 1. Removing the air intake grille Figure 1 Filter (1) Slide the knob of air intake grille toward the arrow 1 to open the air intake grille. (2) Remove drop prevention hook from the panel.
  • Page 43 OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS Coil plate Photo 3 6. Removing the fan and fan motor (MF) (1) Remove the electrical box. (See Photo 2) (2) Remove the bell mouth (3 screws). (See Photo 2) (3) Remove the turbo fan nut. (4) Pull out the turbo fan.
  • Page 44 OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS Photo 8 10 Removing the drain pump (DP) and float switch (FS) (1) Remove the drain pan. (See Photo 6) (2) Cut the hose band and remove the hose. (3) Remove the drain pump assembly (3 screws and 2 hooks). Float switch (4) Remove the drain pump (3 screws).
  • Page 45 OCH413E...
  • Page 46 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU TOKYO 100-8310, JAPAN cCopyright 2007 MITSUBISHI ELECTRIC CORPORATION Distributed in Jul. 2014 No. OCH413 REVISED EDITION-E Distributed in Dec. 2012 No. OCH413 REVISED EDITION-D Distributed in Aug. 2009 No. OCH413 REVISED EDITION-C PDF 6 Distributed in Feb.

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Plfy-p20vbm-ePlfy-p25vbm-ePlfy-p32vbm-ePlfy-p40vbm-ePlfy-p50vbm-ePlfy-p63vbm-e ... Show all

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