Table of Contents
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SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Series PKFY
Wall Mounted
<Indoor unit>
[Model names]
PKFY-P32VGM-A
PKFY-P40VGM-A
PKFY-P50VGM-A
Indoor unit
R407C / R22
[Service Ref.]
PKFY-P32VGM-A
PKFY-P40VGM-A
PKFY-P50VGM-A
CONTENTS
1. SAFETY PRECAUTION ·····························2
2. PART NAMES AND FUNCTIONS ·············4
3. SPECIFICATIONS······································6
4. OUTLINES AND DIMENSIONS ·················8
5. WIRING DIAGRAM ····································9
6. REFRIGERANT SYSTEM DIAGRAM······10
7. TROUBLE SHOOTING ····························11
8. DISASSEMBLY PROCEDURE ················16
9. PARTS LIST ·············································19
2001
No. OC250
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Related Manuals for Mitsubishi Electric PKFY-P32VGM-A
Summary of Contents for Mitsubishi Electric PKFY-P32VGM-A
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Page 1: Table Of Contents
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS No. OC250 TECHNICAL & SERVICE MANUAL R407C / R22 Series PKFY Wall Mounted <Indoor unit> [Model names] [Service Ref.] PKFY-P32VGM-A PKFY-P32VGM-A PKFY-P40VGM-A PKFY-P40VGM-A PKFY-P50VGM-A PKFY-P50VGM-A CONTENTS 1. SAFETY PRECAUTION ·····························2 2. PART NAMES AND FUNCTIONS ·············4 3. -
Page 2: Safety Precaution
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 3 [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. ·Use pressure performance of 5.10MPa·G or over.
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Page 4: Part Names And Functions
PART NAMES AND FUNCTIONS Indoor Unit PKFY-P32VGM-A Filter Air intake grille PKFY-P40VGM-A PKFY-P50VGM-A Air intake Auto vane Guide vane Air outlet Remote controller [PAR-20MAA] Once the controls are set, the same operation mode can be repeated by simply pressing the on / off button. -
Page 5: Operation Lamp
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- intervals by pressing the time switch... -
Page 6: Specifications
SPECIFICATIONS 3-1. Specification Item PKFY-P40VGM-A PKFY-P50VGM-A PKFY-P32VGM-A Power Single phase 220V-230V-240V · 50Hz / 220V · 60Hz V•Hz Cooling capacity Heating capacity Cooling 0.07 Input Heating 0.07 Cooling 0.32 Current Heating 0.32 Exterior Plastic , white : <0.70Y 8.59/0.97> —... - Page 7 3-2. Electrical parts specifications Model Symbol PKFY-P40VGM-A PKFY-P50VGM-A PKFY-P32VGM-A Parts name Room temperature thermistor TH21 Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.2kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ Liquid pipe temperature thermistor TH22 Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.2kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ Gas pipe temperature thermistor TH23 Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.2kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ...
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Page 8: Outlines And Dimensions
OUTLINES AND DIMENSIONS Unit : mm PKFY- P32VGM-A PKFY- P40VGM-A PKFY- P50VGM-A Air intake 30 or more 180 or more... -
Page 9: Wiring Diagram
WIRING DIAGRAM PKFY-P32VGM-A , PKFY-P40VGM-A , PKFY-P50VGM-A Symbol Name Symbol Name Symbol Name Indoor controller board Capacitor(fan motor) Circuit board (Address) Connector Remote switch Linear expansion valve Switch Mode selection CN32 HA terminal-A CN41 Fan motor(with inner thermo) Voltage selection... -
Page 10: Refrigerant System Diagram
TH23 Gas pipe Liquid pipe temperature thermistor TH22 Flare connection Liquid pipe Heat exchanger Linear expansion valve Strainer (#100mesh) Strainer (#100mesh) Room temperature thermistor TH21 Capacity PKFY-P32VGM-A, PKFY-P40VGM-A PKFY-P50VGM-A Item [15.88(5/8”) Gas pipe {12.7 (1/2”) Liquid pipe [9.52(3/8”) {6.35 (1/4”) -
Page 11: Trouble Shooting
TROUBLE SHOOTING 7-1. How to check PKFY-P32VGM-A , PKFY-P40VGM-A, PKFY-P50VGM-A Parts name Check method Room temperature Disconnect the connector then measure the resistance with the tester. thermistor (TH21) (Surrounding temperature 10°C~30°C) Liquid pipe temperature Normal Abnormal thermistor (TH22) (Refer to the next page for a detail.) 4.3k... -
Page 12: Linear Expansion Valve
<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) Thermistor R =15k' ± 3% Fixed number of B=3480k' ± 2% Rt=15exp { 3480( 273+t 15k' 9.6k'... - Page 13 <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. 2. At phase interruption or when phase does not shift in order, motor does not rotate smoothly and motor locks and vibrates.
- Page 14 7-2. FUNCTION OF DIPSWITCH PKFY-P32VGM-A , PKFY-P40VGM-A , PKFY-P50VGM-A Operation by switch Switch Pole Function Remarks Thermistor<Intake temperature Indoor unit Built-in remote controller Address board detection>position Filter clogging detection Provided Not provided <At delivery> Filter cleaning sign 2500hr 100hr 1 2 3 4 5 6 7 8 9 10...
- Page 15 Switch Pole Operation by switch Remarks Address board SW11 1st digit Address can be set while the address unit is stopped. setting SW12 SW11 Address setting should be done when <At delivery> M-NET remote controller is being used. SW12 SW12 SW11 2nd digit address...
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Page 16: Disassembly Procedure
DISASSEMBLY PROCEDURE PKFY-P40VGM-A OPERATION PROCEDURE PHOTOS & ILLUSTRATION (Figure 1) Hook 1. REMOVE THE LOWER SIDE OF THE INDOOR UNIT FROM THE INSTALLATION PLATE (1) Remove the left / right corner box of the indoor unit. (2) Hold and pull down the lower and both ends of the indoor unit, and remove the section from the square hole. - Page 17 OPERATION PROCEDURE PHOTOS & ILLUSTRATION (Photo 4) 4. REMOVING THE VANE MOTOR (1) Disconnect the connector CN6V on the indoor controller Nozzle Set screws board. assemble (2) Remove the 2screws of the vane motor, disconnect the lead wire and remove the vane motor from the shaft. Lead wire Van motor 5.
- Page 18 OPERATION PROCEDURE PHOTOS & ILLUSTRATION (Photo10) 9. REMOVING THE LINE FLOW FAN (1) Remove the terminal block cover. (2) Remove the front panel.(see the photo 1) Heat exchanger (3) Remove the electrical parts box.(see the photo 7) (4) Remove the nozzle assembly.(see the photo 6) (5) Remove the fan motor.(see the photo 8) Set screws (6) Remove the pipe fixture with 2screws.(see the photo11)
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Page 19: Parts List
PARTS LIST STRUCTURAL PARTS PKFY-P32VGM-A PKFY-P40VGM-A PKFY-P50VGM-A Price Wiring Recom- Remarks PKFY- Parts Name Parts No. Specifications Diagram mended (Drawing No.) P32/P40/P50VGM-A Unit Amount Q'ty Symbol FRONT PANEL R01 07Y 651 VANE SLEEVE R01 07Y 092 FRONT GRILLE R01 07Y 691... - Page 20 — REMOTE CONTROLLER PAR-20MAA HEAD OFFICE : MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU TOKYO 100-8310, JAPAN cCopyright 2001 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD. Distributed in Feb. 2001. No.OC250 PDF 810 New publication, effective Feb. 2001. Made in Japan Specifications subject to change without notice...