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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Indoor unit
[Model names]
PKFY-P32VHM-E
PKFY-P40VHM-E
PKFY-P50VHM-E
INDOOR UNIT
[Service Ref.]
PKFY-P32VHM-E
PKFY-P32VHM-ER1
PKFY-P32VHM-ER2
PKFY-P40VHM-E
PKFY-P40VHM-ER1
PKFY-P40VHM-ER2
PKFY-P50VHM-E
PKFY-P50VHM-ER1
PKFY-P50VHM-ER2
R410A
CONTENTS
1. TECHNICAL CHANGES ......................... 2
2. SAFETY PRECAUTION .......................... 3
3. PART NAMES AND FUNCTIONS .......... 5
4. SPECIFICATION ................................... 12
5. OUTLINES AND DIMENSIONS ............ 15
6. WIRING DIAGRAM ............................... 16
7. REFRIGERANT SYSTEM DIAGRAM ........ 18
8. TROUBLESHOOTING .......................... 18
9. DISASSEMBLY PROCEDURE ............. 26
PARTS CATALOG (OCB442)
December 2012
No. OCH442
REVISED EDITION-B
Revision:
• PKFY-P32/40/50VHM-ER2
have been added in
REVISED EDITION-B.
• Some descriptions have
been modified.
• Plase void OCH442
REVISED EDITION-A.
Note:
• This manual describes
only service data of the
indoor units.
• RoHS compliant products
have <G> mark on the
spec name plate.
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Table of Contents
Related Manuals for Mitsubishi Electric PKFY-P32VHM-ER2
Summary of Contents for Mitsubishi Electric PKFY-P32VHM-ER2
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Page 1: Table Of Contents
[Service Ref.] Revision: • PKFY-P32/40/50VHM-ER2 PKFY-P32VHM-E PKFY-P32VHM-E have been added in REVISED EDITION-B. PKFY-P32VHM-ER1 • Some descriptions have been modified. PKFY-P32VHM-ER2 • Plase void OCH442 PKFY-P40VHM-E PKFY-P40VHM-E REVISED EDITION-A. PKFY-P40VHM-ER1 Note: • This manual describes PKFY-P40VHM-ER2 only service data of the indoor units. -
Page 2: Technical Changes
TECHNICAL CHANGES PKFY-P32VHM-ER1 PKFY-P32VHM-ER2 PKFY-P40VHM-ER1 PKFY-P40VHM-ER2 PKFY-P50VHM-ER1 PKFY-P50VHM-ER2 1. INDOOR CONTROLLER BOARD (I.B.) has been changed. (S/W version up) PKFY-P32VHM-E PKFY-P32VHM-ER1 PKFY-P40VHM-E PKFY-P40VHM-ER1 PKFY-P50VHM-E PKFY-P50VHM-ER1 1. INDOOR CONTROLLER BOARD (I.B.) has been changed. (S/W version up) 2. Fan speed has been changed. (4 speed → 3 speed) 3. -
Page 3: Safety Precaution
SAFETY PRECAUTION CAUTIONS RELATED TO NEW REFRIGERANT 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. - Page 4 [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.
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Page 5: Part Names And Functions
PART NAMES AND FUNCTIONS Filter Air intake 3-1. Indoor unit Vane Louver Air outlet 3-2. Wireless remote controller CHECK TEST RUN display display CHECK and TEST RUN display indicate that the unit is being checked or test-run. Lights up while the signal is transmitted to the indoor unit when the button is pressed. - Page 6 3-3. WIRED REMOTE CONTROLLER <PAR-30MAA/PAR-31MAA> Wired remote controller function * The functions which can be used are restricted according to the model. : Supported : Unsupported PAR-30MAA/PAR-31MAA Function PAR-21MAA Slim City multi Body Product size H × W × D (mm) 120 ×...
- Page 7 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. <Full mode> <Basic mode> * All icons are displayed for explanation. Cool Set temp.
- Page 8 Menu structure Press the button. MENU Main menu Move the cursor to the desired item with the buttons, and press the SELECT button. Vane · Louver · Vent. (Lossnay) High power Timer On / Off timer Auto-Off timer Filter information Error information Weekly timer Energy saving...
- Page 9 Main menu list Setting and display items Setting details Vane · Louver · Vent. Use to set the vane angle. (Lossnay) • Select a desired vane setting from fi ve different settings. Use to turn ON / OFF the louver. •...
- Page 10 Setting and display items Setting details Initial setting Display Make the settings for the remote controller related items as necessary. details Clock: The factory settings are "Yes" and "24h" format. Temperature: Set either Celsius (°C) or Fahrenheit (°F). Room temp. : Set Show or Hide. Auto mode: Set the Auto mode display or Only Auto display.
- Page 11 3-4. WIRED REMOTE CONTROLLER <PAR-21MAA> “Sensor” indication Display Section Displayed when the remote controller sensor is used. Day-of-Week For purposes of this explanation, Shows the current day of the week. all parts of the display are shown. During actual operation, only the Time/Timer Display relevant items will be lit.
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Page 12: Specification
SPECIFICATION 4-1. Specifi cations Service Ref. PKFY-P50VHM-E PKFY-P32VHM-E PKFY-P40VHM-E Power source 1-phase 220-240V 50Hz, 1-phase 220V 60Hz Cooling capacity 4,800 (Nominal) kcal/h 3,100 3,900 19,100 Btu/h 12,300 15,400 5,000 kcal/h 3,150 4,000 Power input 0.03 0.03 0.03 Current input 0.30 0.30 0.30 Heating capacity... - Page 13 PKFY-P50VHM-ER1 PKFY-P32VHM-ER1 PKFY-P40VHM-ER1 Service Ref. PKFY-P50VHM-ER2 PKFY-P32VHM-ER2 PKFY-P40VHM-ER2 Power source 1-phase 220-240V 50Hz, 1-phase 220V 60Hz Cooling capacity 4,800 3,100 3,900 (Nominal) kcal/h 19,100 Btu/h 12,300 15,400 5,000 kcal/h 3,150 4,000 Power input 0.04 0.04 0.04 Current input 0.40 0.40 0.40...
- Page 14 PKFY-P40VHM-E Service Ref. PKFY-P50VHM-E Symbol PKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PKFY-P50VHM-ER1 Parts name PKFY-P32VHM-ER2 PKFY-P40VHM-ER2 PKFY-P50VHM-ER2 Room temperature thermistor TH21 Resistance 0 /15k , 10 /9.6k , 20 /6.3k , 25 /5.4k , 30 /4.3k , 40 /3.0k Liquid pipe thermistor TH22 Resistance 0 /15k , 10 /9.6k , 20 /6.3k , 25 /5.4k , 30 /4.3k , 40 /3.0k...
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Page 15: Outlines And Dimensions
OUTLINES AND DIMENSIONS PKFY-P32VHM-E Unit : mm PKFY-P40VHM-E PKFY-P50VHM-E PKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PKFY-P50VHM-ER1 PKFY-P32VHM-ER2 PKFY-P40VHM-ER2 PKFY-P50VHM-ER2 OCH442B... -
Page 16: Wiring Diagram
WIRING DIAGRAM PKFY-P32VHM-E PKFY-P40VHM-E PKFY-P50VHM-E PKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PKFY-P50VHM-ER1 SYMBOL NAME SYMBOL NAME INDOOR CONTROLLER BOARD TH21 THERMISTOR ROOM TEMP. DETECTION (0°C/15kΩ, 25°C/5.4kΩ) CN32 CONNECTOR REMOTE SWITCH CN51 CENTRALLY CONTROL TH22 PIPE TEMP. DETECTION / LIQUID (0°C/15kΩ, 25°C/5.4kΩ) CN52 REMOTE INDICATION BUZZER TH23 PIPE TEMP. - Page 17 PKFY-P32VHM-ER2 PKFY-P40VHM-ER2 PKFY-P50VHM-ER2 SYMBOL NAME SYMBOL NAME INDOOR CONTROLLER BOARD TH21 THERMISTOR ROOM TEMP. DETECTION (0°C/15kΩ, 25°C/5.4kΩ) CONNECTOR CN32 REMOTE SWITCH CN51 CENTRALLY CONTROL TH22 PIPE TEMP. DETECTION / LIQUID (0°C/15kΩ, 25°C/5.4kΩ) CN52 REMOTE INDICATION CN100 IT TERMINAL TH23 PIPE TEMP. DETECTION / GAS1 (0°C/15kΩ, 25°C/5.4kΩ)
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Page 18: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM PKFY-P32VHM-E PKFY-P40VHM-E PKFY-P50VHM-E PKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PKFY-P50VHM-ER1 PKFY-P32VHM-ER2 PKFY-P40VHM-ER2 PKFY-P50VHM-ER2 Gas pipe thermistor TH23 Strainer (#50mesh) Gas pipe Gas pipe thermistor TH24 Flare connection Liquid pipe thermistor TH22 Heat exchanger Liquid pipe Linear expansion valve Strainer1 (#50mesh) Room temparature thermistor TH21... - Page 19 8-1-1. Thermistor <Thermistor Characteristic graph> < Thermistor for lower temperature > Room temperature thermistor (TH21) Thermistor for Liquid pipe temperature thermistor (TH22) lower temperature Gas pipe temperature thermistor (TH23) (TH24) Thermistor R =15k" ± 3% Fixed number of B=3480 ± 2% Rt=15exp { 3480( 273+t 15k"...
- Page 20 <Output pulse signal and the valve operation> Output Output Closing a valve : 1 → 2 → 3 → 4 → 1 (Phase) Opening a valve : 4 → 3 → 2 → 1 → 4 The output pulse shifts in above order. •...
- Page 21 8-1-3. 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 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 22 8-2. FUNCTION OF DIP SWITCH PKFY-P32VHM-E PKFY-P40VHM-E PKFY-P50VHM-E PKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PKFY-P50VHM-ER1 PKFY-P32VHM-ER2 PKFY-P40VHM-ER2 PKFY-P50VHM-ER2 The black square ( ) indicates a switch position. Operation by switch Effective Switch Pole Function Remarks timing Thermistor<Room temperature> Indoor unit Built-in remote controller Address board...
- Page 23 Effective Operation by switch Remarks Switch timing SW11 Address board SW12 SW11 1s digit How to set addresses address Example : If address is "3", remain SW12 <Initial setting> setting (for over 10) at "0", and match SW11 (for 1 to 9) SW12 SW11 SW12...
- Page 24 8-3. TEST POINT DIAGRAM 8-3-1. Indoor controller board PKFY-P32VHM-E PKFY-P40VHM-E PKFY-P50VHM-E PKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PKFY-P50VHM-ER1 PKFY-P32VHM-ER2 PKFY-P40VHM-ER2 PKFY-P50VHM-ER2 CN2M Connect to the CNMF terminal block (TB5) Connect to the fan motor (MF) FUSE (M-NET transmission 1-3 : DC310~340V Drain pump output Power supply for 3.15A 250V...
- Page 25 8-3-2. Wireless remote controller board PKFY-P32VHM-E PKFY-P40VHM-E PKFY-P50VHM-E PKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PKFY-P50VHM-ER1 PKFY-P32VHM-ER2 PKFY-P40VHM-ER2 PKFY-P50VHM-ER2 LD101 Connect to the indoor controller board (I.B) 8-3-3. Address board PKFY-P32VHM-E PKFY-P40VHM-E PKFY-P50VHM-E PKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PKFY-P50VHM-ER1 PKFY-P32VHM-ER2 PKFY-P40VHM-ER2 PKFY-P50VHM-ER2 Function setting 1 2 3 4 5 6 7 8 9 10...
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Page 26: Disassembly Procedure
DISASSEMBLY PROCEDURE PKFY-P32VHM-E PKFY-P40VHM-E PKFY-P50VHM-E PKFY-P32VHM-ER1 PKFY-P40VHM-ER1 PKFY-P50VHM-ER1 PKFY-P32VHM-ER2 PKFY-P40VHM-ER2 PKFY-P50VHM-ER2 Be careful when removing heavy parts. OPERATION PROCEDURE PHOTOS & ILLUSTRATIONS 1. REMOVING THE LOWER SIDE OF THE INDOOR Figure 1 UNIT FROM THE INSTALLATION PLATE (1) Remove the front panel. - Page 27 OPERATION PROCEDURE PHOTOS Electrical box cover (top) Electrical box 3. REMOVING THE INDOOR CONTROLLER BOARD Photo 3 Screw (side cover) cover (side) AND WIRELESS CONTROLLER BOARD Screw (top cover) (1) Remove the front panel. (Refer to procedure 2) (2) Remove the room temp. thermistor TH21. (See Photo 3) Room temp.
- Page 28 OPERATION PROCEDURE PHOTOS Electrical box cover (side) 5. REMOVING THE NOZZLE ASSEMBLY (with VANE Photo 7 Electrical box cover (top) and VANE MOTOR) AND DRAIN HOSE Screw (side cover) Screw (top cover) (1) Remove the front panel (Refer to procedure 2). (2) Remove the electrical box cover.
- Page 29 OPERATION PROCEDURE PHOTOS 9. REMOVING THE HEAT EXCHANGER AND LEV Photo 13 Electrical box cover (side) Electrical box cover (top) (1) Remove the front panel (Refer to procedure 2) and the Screw (side cover) corner panel at right lower side. Screw (top cover) Water cover (2) Remove the electrical box (Refer to procedure 4) and the...
- Page 30 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU TOKYO 100-8310, JAPAN Copyright 2008 MITSUBISHI ELECTRIC CORPORATION Distributed in Dec. 2012 No. OCH442 REVISED EDITION-B Distributed in Feb. 2009 No. OCH442 REVISED EDITION-A PDF 7 Distributed in Jul. 2008 No. OCH442 PDF 7 New publication, effective Dec.
- Page 31 Related Links Model Number: PKFY-P32VHM-E Kleusberg, Mr Slim and City Multi, Germany PKFY-P15-50V(B)(H)M-E Instruction Book (RG79D970H03) PKFY-P32-50VHM-E Declaration of Conformity PKFY-P32-50VHM-E Installation Manual (RG79D840H02) PKFY-P32-50VHM-E Parts Catalogue (OCB442B) PKFY-P32-50VHM-E Service Manual (OCH442B) PKFY-P32-50VHM_Declaration_of_Conformity PKFY-P32-50VHM_Installation_Manual_(RG79D439H03) PKFY-P32-50VHM_Instruction_Book_(RG79D837H01) PKFY-P32-50VHM_Parts_Catalog_(OCB442) PKFY-P32-50VHM_Service_Manual_(OCH442B)