Table of Contents
Advertisement
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Series PKFY
Wall Mounted
<Indoor unit>
[Model names]
PKFY-P32VGM-E
PKFY-P40VGM-E
PKFY-P50VGM-E
Indoor unit
R410A
[Service Ref.]
PKFY-P32VGM-E
PKFY-P40VGM-E
PKFY-P50VGM-E
REVISED EDITION-A
R407C
R22
Revision:
• RoHS PARTS LIST is added.
• Some descriptions have
been modified.
• Please void OC310.
Note:
• This manual describes only
service data of the indoor
units.
• RoHS compliant products
have <G> mark on the spec
name plate.
• For servicing of RoHS com-
pliant products, refer to the
RoHS Parts List.
CONTENTS
1. SAFETY PRECAUTION ···························2
2. PART NAMES AND FUNCTIONS············6
3. SPECIFICATIONS ····································8
4. OUTLINES AND DIMENSIONS ·············10
5. WIRING DIAGRAM·································11
7. TROUBLE SHOOTING ··························13
8. DISASSEMBLY PROCEDURE ··············20
9. PARTS LIST ···········································23
10. RoHS PARTS LIST ································25
July 2006
No. OC310
Advertisement
Table of Contents
Related Manuals for Mitsubishi Electric PKFY-P32VGM-E
Summary of Contents for Mitsubishi Electric PKFY-P32VGM-E
-
Page 1: Table Of Contents
TECHNICAL & SERVICE MANUAL Series PKFY Wall Mounted R410A R407C <Indoor unit> Revision: [Model names] [Service Ref.] • RoHS PARTS LIST is added. PKFY-P32VGM-E • Some descriptions have PKFY-P32VGM-E been modified. PKFY-P40VGM-E PKFY-P40VGM-E • Please void OC310. PKFY-P50VGM-E Note: PKFY-P50VGM-E •... -
Page 2: Safety Precaution
SAFETY PRECAUTION CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R407C Do not use the existing refrigerant piping. Use liquid refrigerant to seal the system. The old refrigerant and lubricant in the existing piping If gas refrigerant is used to seal the system, the composition contains a large amount of chlorine which may cause the of the refrigerant in the cylinder will change and performance lubricant deterioration of the new unit. - Page 3 [3] 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.
- Page 4 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 5 [1] Cautions for service (1) Perform service after collecting 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: Part Names And Functions
PART NAMES AND FUNCTIONS Indoor Unit PKFY-P32VGM-E Filter Air intake grille PKFY-P40VGM-E PKFY-P50VGM-E Air intake Auto vane Guide vane Air outlet Wired remote controller On the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button. - Page 7 Display “Sensor” indication 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 as lit. During actual operation, only Time/Timer Display the relevant items will be lit. “Locked”...
-
Page 8: Specifications
SPECIFICATIONS 3-1. SPECIFICATION Item PKFY-P40VGM-E PKFY-P50VGM-E PKFY-P32VGM-E 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 9 3-2. ELECTRICAL PARTS SPECIFICATIONS Model PKFY-P50VGM-E Symbol PKFY-P40VGM-E PKFY-P32VGM-E Parts name Room temperature thermistor TH21 Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.4kΩ, 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/5.4kΩ, 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/5.4kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ...
-
Page 10: Outlines And Dimensions
OUTLINES AND DIMENSIONS Unit : mm PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E Air intake 30 or more 180 or more... -
Page 11: Wiring Diagram
WIRING DIAGRAM PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E Legend Name Symbol Name Symbol Name Symbol Capacitor (fan motor) TH23 Pipe temperature detection/Gas Indoor controller board Thermistor Linear expansion valve CN32 Connector Remote switch (0ºC/15k", 25ºC/5.4k") Fan motor (with inner thermo) CN41 HA terminal-A... -
Page 12: Refrigerant System Diagram
TH22 Flare connection Liquid pipe Heat exchanger Linear expansion valve Strainer (#100mesh) Strainer (#100mesh) Room temperature thermistor TH21 Capacity PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E Item {12.7 (1/2”) or [15.88(5/8”) Gas pipe {12.7 (1/2”) Liquid pipe {6.35 (1/4”) or [9.52(3/8”) {6.35 (1/4”) -
Page 13: Trouble Shooting
TROUBLE SHOOTING 7-1. HOW TO CHECK PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E 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 the details. - Page 14 <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 15 <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 16 7-2. FUNCTION OF DIPSWITCH PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E 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 17 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...
- Page 18 7-3. TEST POINT DIAGRAM 7-3-1. Indoor controller board PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E CN29 Pipe temperature CN2D CN2M CN3A thermistor/Gas (TH23) Connect to the indoor Connect to the terminal block (TB5) Connect to the terminal block (TB15) power board (CN2S) (M-NET transmission connecting wire) (MA-Remote controller connecting wire) 12.5-13.7V DC (Pin1 1 (+))
- Page 19 7-3-2. Indoor power board PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E CN2S Connect to the indoor power board (CN2D) Between 1 1 to 3 3 12.6-13.7V DC (Pin1 1 (+)) CNSK Connect to the indoor controller board (CNDK) Between 1 1 to 3 3 220-240V AC...
-
Page 20: Disassembly Procedure
DISASSEMBLY PROCEDURE PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E 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 21 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 2 screws of the vane motor, disconnect the lead wire and remove the vane motor from the shaft. Lead wire Van motor 5.
- Page 22 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 2 screws.(See the photo 11)
-
Page 23: Parts List
PARTS LIST (non-RoHS compliant) STRUCTURAL PARTS PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E Price Recom- Wiring Remarks PKFY- Parts Name Parts No. Specifications mended Diagram (Drawing No.) P32,P40,P50VGM-E Unit Amount Symbol Q'ty FRONT PANEL R01 89Y 651 VANE SLEEVE R01 07Y 092 FRONT GRILLE... - Page 24 ELECTRICAL PARTS PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E TEMP. ON/OFF 13 14 PKFY- Wiring Recom- Price Remarks Specifications Parts No. Parts Name Diagram mended P40VGM P50VGM P32VGM (Drawing No.) Unit Amount Symbol Q'ty T7W A01 762 FAN MOTOR R01 H55 480 HEAT EXCHANGER...
-
Page 25: Rohs Parts List
RoHS PARTS LIST STRUCTURAL PARTS PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E Price Wiring Recom- Remarks PKFY- mended Parts Name Diagram Parts No. Specifications (Drawing No.) P32,P40,P50VGM-E Unit Amount Q'ty Symbol FRONT PANEL R01 E05 651 VANE SLEEVE R01 08Y 092 FRONT GRILLE R01 08Y 691... - Page 26 ELECTRICAL PARTS PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E TEMP. ON/OFF 13 14 PKFY- Price Wiring Recom- Remarks Specifications Parts No. Parts Name Diagram mended P32VGM P40VGM P50VGM (Drawing No.) Unit Amount Symbol Q'ty T7W A02 762 FAN MOTOR R01 J34 480 HEAT EXCHANGER...
- Page 28 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN cCopyright 2004 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Jul. 2006 No. OC310 REVISED EDITION-A PDF 8 Distributed in Apr. 2004 No. OC310 PDF 9 New publication, effective Jul. 2006...