Mitsubishi Electric PLFY Series Service Manual
Split-type, heat pump air conditioners
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- Technical & service manual (56 pages) ,
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- Technical & service manual (46 pages)
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SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Ceiling Cassettes
Series PLFY
Indoor unit
[Model names]
PLFY-P32VKM-A
PLFY-P40VKM-A
PLFY-P50VKM-A
PLFY-P63VKM-A
INDOOR UNIT
All manuals and user guides at all-guides.com
[Service Ref.]
PLFY-P32VKM-A
PLFY-P40VKM-A
PLFY-P50VKM-A
PLFY-P63VKM-A
2001
R407C
R22
CONTENTS
1. SAFETY PRECAUTION···························3
2. PART NAMES AND FUNCTIONS ···········5
3. SPECIFICATION ······································7
4. OUTLINES AND DIMENSIONS···············9
5. WIRING DIAGRAM ································10
6. REFRIGERANT SYSTEM DIAGRAM·······11
7. TROUBLE SHOOTING ··························12
8. DISASSEMBLY PROCEDURE ··············17
9. PARTS LIST···········································20
10. OPTIONAL PARTS ·················Back cover
No. OC253
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Table of Contents
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Summary of Contents for Mitsubishi Electric PLFY Series
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Page 1: Table Of Contents
All manuals and user guides at all-guides.com 2001 SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS No. OC253 TECHNICAL & SERVICE MANUAL Ceiling Cassettes Series PLFY R407C Indoor unit [Model names] [Service Ref.] PLFY-P32VKM-A PLFY-P32VKM-A PLFY-P40VKM-A PLFY-P40VKM-A PLFY-P50VKM-A PLFY-P50VKM-A PLFY-P63VKM-A PLFY-P63VKM-A CONTENTS 1. SAFETY PRECAUTION···························3 2. - Page 2 All manuals and user guides at all-guides.com...
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Page 3: Safety Precaution
All manuals and user guides at all-guides.com SAFETY PRECAUTION Cautions for using with the outdoor unit which adopts R407C refrigerant. · Do not use the existing refrigerant piping. -The old refrigerant and lubricant in the existing piping contains a large amount of chlorine which may cause the lubricant deterioration of the new unit. - Page 4 All manuals and user guides at all-guides.com [1] Service tools Use the below service tools as exclusive tools for R407C refrigerant. Tool name Specifications Gauge manifold ·Only for R407C. ·Use the existing fitting SPECIFICATIONS. (UNF7/16) ·Use high-tension side pressure of 3.43MPa·G or over. Charge hose ·Only for R407C.
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Page 5: Part Names And Functions
All manuals and user guides at all-guides.com PART NAMES AND FUNCTIONS Indoor (Main) Unit Filters Remove dust and pollutants from return air Horizontal Air Outlet Sets airflow horizontal automatically during cooling or dehumidifying. Grille Auto Air Swing Vane Disperses airflow up and down and adjusts the angle of airflow direction. - Page 6 All manuals and user guides at all-guides.com Display In this display example on the bot- CENTRALLY CLOCK display tom left, a condition where all dis- CONTROLLED display play lamps light is shown for expla- The current time , start time and stop time can be displayed in ten second nation purposes although this differs This indicates when the unit is con-...
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Page 7: Specification
All manuals and user guides at all-guides.com SPECIFICATION 3-1. Specification Item PLFY-P32VKM-A PLFY-P40VKM-A PLFY-P50VKM-A PLFY-P63VKM-A Single phase 220-230-240V 50Hz · Power Single phase 220V 60Hz Cooling capacity Heating capacity Cooling 0.13 0.13 0.14 0.15 Input Heating 0.13 0.13 0.14 0.15 Cooling 0.60 0.60... - Page 8 All manuals and user guides at all-guides.com 3-2. Electrical parts specifications Model Symbol PLFY-P32VKM-A PLFY-P40VKM-A PLFY-P50VKM-A PLFY-P63VKM-A Parts name Room temperature TH21 Resistance 0:/15k , 10:/9.6k', 20:/6.3k', 25:/5.2k', 30:/4.3k', 40:/3.0k thermistor Liquid pipe thermistor TH22 Resistance 0:/15k , 10:/9.6k', 20:/6.3k', 25:/5.2k', 30:/4.3k', 40:/3.0k Gas pipe thermistor TH23 Resistance 0:/15k...
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Page 9: Outlines And Dimensions
All manuals and user guides at all-guides.com OUTLINES AND DIMENSIONS PLFY-P32VKM-A Unit : mm PLFY-P40VKM-A PLFY-P50VKM-A PLFY-P63VKM-A... -
Page 10: Wiring Diagram
All manuals and user guides at all-guides.com WIRING DIAGRAM PLFY-P32VKM-A, PLFY-P40VKM-A PLFY-P50VKM-A, PLFY-P63VKM-A... -
Page 11: Refrigerant System Diagram
All manuals and user guides at all-guides.com REFRIGERANT SYSTEM DIAGRAM PLFY-P32VKM-A PLFY-P40VKM-A PLFY-P50VKM-A PLFY-P63VKM-A Gas pipe thermistor TH23 Strainer (#50mesh) Gas pipe Liquid pipe thermistor TH22 Flare connection Heat exchanger Linear expansion valve Strainer (#100mesh) Strainer (#100mesh) Room temparature thermistor TH21 Capacity PLFY-P32VKM-A PLFY-P50VKM-A... -
Page 12: Trouble Shooting
All manuals and user guides at all-guides.com TROUBLE SHOOTING 7-1. How to check the parts PLFY-P•VKM-A Parts name Check points Room temperature Disconnect the connector, then measure the resistance using a tester. thermistor (Surrounding temperature 10°C~30°C) (TH21) Liquid pipe thermistor (TH22) Normal Abnormal... - Page 13 All manuals and user guides at all-guides.com <Thermistor characteristic graph> Room temperature thermistor(TH21) < Thermistor for lower temperature > Thermistor for Liquid pipe temperature thermistor(TH22) lower temperature Gas pipe temperature thermistor(TH23) Thermistor R =15k' ± 3% Fixed number of B=3480k' ± 2% Rt=15exp { 3480( 273+t 15k'...
- Page 14 All manuals and user guides at all-guides.com <Output pulse signal and the valve operation> Output Output (Phase) Closing a valve : 1 Opening a valve : 4 The output pulse shifts in above order. 1. When linear expansion valve operation stops, all output phase become OFF.
- Page 15 All manuals and user guides at all-guides.com 7-2. FUNCTION OF DIP SWITCH Operation by switch Switch Pole Function Remarks Thermistor <intake temperature Built-in remote controller Indoor unit Address board detection> position Filter clogging detection Provided Not provided <At delivery> Filter cleaning 2,500hr 100hr Fresh air intake...
- Page 16 All manuals and user guides at all-guides.com Switch Pole Operation by switch Remarks Address board Ceiling height can be changed depends on SWB setting. (High ceiling) <At delivery> Ceiling (Standard) height selector (Silent) High Silent Standard ceiling Address board 4 direction 2.7m 2.7m 3.0m...
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Page 17: Disassembly Procedure
All manuals and user guides at all-guides.com DISASSEMBLY PROCEDURE INDOOR UNIT Be careful on removing heavy parts. PLFY-P63VKM-A OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS Shaft 1. Removing the air intake grille Figure 1 PUSH (1) Press the button. (2) Open the intake grille 90°. (3) Remove the chip. - Page 18 All manuals and user guides at all-guides.com OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 5. Removing the room temperature thermistor Photo 5 (1) Remove the fan guard. Indoor controller board (2) Remove the electrical box cover (3) Remove the holder and the room temperature thermistor by pulling the catch.
- Page 19 All manuals and user guides at all-guides.com OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 9. Removing the drain pump and drain sensor Photo 9 Drain hose Drain sensor holder (1) Remove the panel. (2) Remove the fan guard. (3) Remove the electrical parts cover. (4) Remove the electrical parts box.
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Page 20: Parts List
All manuals and user guides at all-guides.com PARTS LIST PANEL PARTS PLFY-P32VKM-A PLFY-P40VKM-A PLFY-P50VKM-A PLFY-P63VKM-A CENTRALLY CONTROLLED 1Hr. ON OFF ˚C CLOCK CHECK FILTER CHECK MODE ˚C TEST RUN STAND BY ERROR CODE DEFROST NOT AVAILABLE FUNCTION TEMP. ON/OFF FILTER CHECK TEST PAR-20MAA TIMER SET... - Page 21 All manuals and user guides at all-guides.com PANEL PARTS PLFY-P32VKM-A PLFY-P40VKM-A PLFY-P50VKM-A PLFY-P63VKM-A Part number that is circled is not shown in the figure. Q'ty/set Price Wiring Recom- Remarks PLFY-P32/P40 Diagram mended Part No. Part Name Specification /P50/P63 (Drawing No.) Unit Amount Symbol...
- Page 22 All manuals and user guides at all-guides.com FUNCTIONAL PARTS PLFY-P32VKM-A PLFY-P40VKM-A PLFY-P50VKM-A PLFY-P63VKM-A...
- Page 23 All manuals and user guides at all-guides.com Part numbers that are circled are not shown in the figure. Q'ty/set Price Wiring Recom- Remarks Diagram mended PLFY- · VKM-A Part No. Part Name Specification (Drawing No.) Unit Amount Symbol Q'ty P32 P40 P50 P63 R01 29H 105 MOTOR MOUNT T7W E00 762...
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Page 24: Optional Parts
Part No. PAC-SE01AS-E HEAD OFFICE : MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU TOKYO 100-8310, JAPAN cCopyright 2001 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. New publication, effective Feb. 2001 Specifications subject to change without notice Distributed in Feb. 2001. No. OC253 PDF 585...