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TECHNICAL & SERVICE MANUAL

SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS

CONTENTS

1. PART NAMES AND FUNCTIONS ········2

2. SPECIFICATION ···································4

3. OUTLINES AND DIMENSIONS············6

4. WIRING DIAGRAM·······························7

5. REFRIGERANT SYSTEM DIAGRAM ··8

6. TROUBLESHOOTING ··························9

7. DISASSEMBLY PROCEDURE···········14

8. PARTS LIST········································17

<Indoor unit>

PKFY-20VAM
PKFY-25VAM

No. OC112

1997

Models

Wall Mounted

Series PKFY

INDOOR UNIT

MODEL NAME

OC112--1.qxp 11/16/98 4:49 PM Page 1

Содержание PKFY-20VAM

Страница 1: ... 2 2 SPECIFICATION 4 3 OUTLINES AND DIMENSIONS 6 4 WIRING DIAGRAM 7 5 REFRIGERANT SYSTEM DIAGRAM 8 6 TROUBLESHOOTING 9 7 DISASSEMBLY PROCEDURE 14 8 PARTS LIST 17 Indoor unit PKFY 20VAM PKFY 25VAM No OC112 1997 Models Wall Mounted Series PKFY INDOOR UNIT MODEL NAME OC112 1 qxp 11 16 98 4 49 PM Page 1 ...

Страница 2: ...temperature The temperature setting can be per formed in 1 C units Setting range Cooler 19 C to 30 C Heater 17 C to 28 C CHECK TEST RUN button Only press this button to perform an inspection check or test operation Do not use it for nomal operation FILTER button This resets the filter service indica tion display AIR DIRECTION button This adjusts the vertical angle of the ventilation ON OFF button ...

Страница 3: ...arged DEFROST display This indicates when the defrost oper ation is performed CHECK display This indicates when a malfunction has occurred in the unit which should be checked CLOCK display The current time start time and stop time can be displayed in tensecond intervals by pressing the time switch button The start time or stop time is always displayed during the timer operation Display In this dis...

Страница 4: ...ght Width Depth Gas side Liquid side PKFY 20VAM 2000 2250 PKFY 25VAM 2500 2800 Single phase 220V 240V 50Hz 0 04 0 04 0 20 0 20 Plastic munsell 2 60Y 8 66 0 69 295 815 158 Cross fin Lineflow fan 1 5 9 5 6 5 2 4 9 0 0 017 Polyethylene sheet PP honey comb 12 7 1 2F 6 35 1 4F Outer dimeter 28 Outer diameter of the connection 36 35 33 32 8 5 Electric characteristic Note 1 Rating conditions JIS B8616 Co...

Страница 5: ...block Transmission terminal block Symbol T TH21 TH22 TH23 FUSE MF1 2 C1 MV LEV TB2 TB5 Primary 50 60Hz 220 240V Secondry 18 4V 1 2A Resistance 0 C 15k 10 C 9 6k 20 C 6 3k 25 C 5 4k 30 C 4 3k 40 C 3 0k Resistance 0 C 15k 10 C 9 6k 20 C 6 3k 25 C 5 4k 30 C 4 3k 40 C 3 0k 250V 6 3A 4 Pole Output 17W RC4V17 1 5µF 440V MSFBC20A76 DC12V DC12V Stepping motor drive Port 3 2 0 2000pulse EDM 402ME L N 264V ...

Страница 6: ...ention Air outlet direction Detail of address board Dip swich Terminal block Terminal block for power supply Knock out hole for right hand side piping Knock out hole for left hand side piping Knock out hole for under piping Liquid pipe 815 630 695 660 450 520 54 50 16 45 91 5 10 34 2 5 2 5 16 4 50 10 45 5 4 5 3 R 1 5 R 1 5 R15 R12 R8 R8 R 8 10 24 4 116 110 60 146 295 21 5 247 5 150 158 70 3 37 4 5...

Страница 7: ...CATION CONNECTION NO 1ST DIGIT 2ND DIGIT 3RD DIGIT ADDRESS RED F C ZNR 3 1 P B See fig 1 BLU YEL ORN PNK WHT YEL MF 5 TH21 TH23 TH22 LEV ORN BLU RED RED BRN MV LED5 0 A B SW14 SW11 SW12 SW1 10 9 8 7 6 5 4 3 2 1 OFF ON 1 1 8 RED ADDRESS CN43 CN82 4 4 8 6 3A 250V FUSE AC18 4V T C1 CND RED GRN FAN1 1 2 1 3 5 1 2 BLU M NET CN2M 1 2 LIQUID CN21 CN53 P MICON BOARD CN35 P 1 5 M B POWER BOARD CN53 M 1 5 3...

Страница 8: ...Room temperature thermistor TH21 Gas pipe thermistor TH23 Liquid pipe thermistor TH22 Gas pipe Flare Linear expansion valve Gas pipe PKFY 20VAM PKFY 25VAM 12 7 1 2F Liquid pipe 6 35 1 4F Models Item Refrigeration pipe size Flare connection size OC112 1 qxp 11 16 98 4 46 PM Page 8 ...

Страница 9: ...nd yellow wire VCC Slowly start running the fan It is normal if while the fan rotate once the electrical pressure change from 0V to12V then go back to 0V If the electrical pressure stay at around 0V or 10V it means the fan motor has the defects 200 Normal 1 5 White Red 150 10 Abnormal Open or short 2 6 Yellow Blown 3 5 Orange Red 4 6 Blue Brown Normal 1 2 Red Pink 400 7 Abnormal Open or short 1 3 ...

Страница 10: ...R0 15k 3 Fixed number of B 3480k 2 Rt 15exp 3480 0 15k 10 9 6k 20 6 3k 25 5 2k 30 4 3k 40 3 0k Thermistor for lower temperature Linear expansion valve Operation summary of the linear expansion valve Linear expansion valve open close through stepping motor after receiving the pulse signal from the indoor controller board Valve position can be changed in proportion to the number of pulse signal Conn...

Страница 11: ... way It is not necessary to exchange the linear expansion valve if the leakage is small and not making any trouble Thermistor Linear expansion valve Motor will idle and make ticking noise when motor is operated while the linear expansion valve is locked This ticking sound is the sign of the abnormality Check the color of lead wire and missing terminal of the con nector Exchange the linear expansio...

Страница 12: ...First setting Vane cooling limit angle setting Horizontal angle Down B C Effective Not effective Heater 4deg up Not effective Effective Target Superheat setting temperature 5deg 2deg Target Sybcool setting temperature 15deg 10deg ON OFF 1 2 3 4 5 6 7 8 9 10 ON OFF 1 2 3 4 5 6 7 8 9 10 ON OFF 1 2 3 4 ON OFF 1 2 3 4 PKFY 20VAM MODEL SW2 PKFY 25VAM Address board At delivery Indoor controller board In...

Страница 13: ...etting Rotary switch SW14 Connector No Setting SW5 Voltage selection Rotary switch Address setting should be done when network remote controller PAR F25M is being used This is the switch to be used when the indoor unit is operated with R2 R3 series outdoor unit as a set If the unit is used at the 230V or 240V area set the voltage to 240V If the unit is used at the 220V set the voltage to 220V Addr...

Страница 14: ...l not to damage the airflow adjustment plate with the screw driver PKFY 25VAM Be careful on removing heavy parts Figure 1 Figure 2 2 REMOVING THE FRONT PANEL Before removing the front panel leave the open space at upper side of air flow adjustment plate approximately 2 to 3 cm 1 Remove the screw caps then remove the set screws Refer to the photo 1 2 Remove the left side of the front panel then rig...

Страница 15: ...cal parts box cover Screw caps Electrical parts box Photo 3 Indoor micro controller board Indoor power board Indoor power board 4 REMOVING THE ELECTRICAL PARTS BOX 1 Remove the front panel Refer to 2 2 Remove the electrical parts box cover 3 Pull the nozzle assemble toward you as opening the catch of the nozzle assemble 4 Disconnect the indoor outdoor connector 5 Disconnect the following connector...

Страница 16: ...e left hand side of the heat exchanger toward you See the photo 7 8 Remove the lineflow fan Photo 6 Heat exchanger Fan motor Photo 7 Heat exchanger 7 REMOVING THE VANE MOTOR 1 Remove the front panel 2 Remove the screw of the electrical parts box cover and remove the cover 3 Remove the screw of the vane motor and remove the motor from the shaft 4 Disconnect the vane motor connector CN5V on the indo...

Страница 17: ...2A 096 R01 22A 054 FRONT PANEL INTAKE GRILLE RECEVING COVER AIR FILTER BOX CONER BOX BACK PLATE SCREW CAP CATCH BRAND LABEL No Parts No Parts Name Specifications PKFY 20VAM PKFY 25VAM Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty Unit Amount Q ty set Price 1 1 1 1 1 1 1 1 1 1 DT25C174H03 BC79R798H01 OC112 1 qxp 11 16 98 4 47 PM Page 17 ...

Страница 18: ...VE BEARING INDOOR CONTROLLER BOARD POWER BOARD ELECTRICAL BOX TERMINAL BLOCK TERMINAL BLOCK ROOM TEMPERATURE THERMISTOR LIQUID PIPE THERMISTOR VANE MOTOR LINEFLOW FAN FUSE ADDRESS BOARD MOTOR BAND GAS PIPE THERMISTOR REMOTE CONTROLLER COARD REMOCON CONTROLLER COVER RC4V17 AA 2P M1 M2 3P L N 250V 6 3A No Parts No Parts Name Specifications PKFY 20VAM PKFY 25VAM Remarks Drawing No Wiring Diagram Symb...

Страница 19: ...0 R01 23A 480 R01 22A 470 R01 22A 401 HEAT EXCHANGER CONNECT PIPE LINEAR EXPANSION VALVE No Parts No Parts Name Specifications PKFY PKFY 20VAM 25VAM Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty Unit Amount Q ty set Price LEV OC112 1 qxp 11 16 98 4 48 PM Page 19 ...

Страница 20: ...8 No OC112 251 Issued in Mar 1997 No OC112 1600 Printed in Japan HEAD OFFICE MITSUBISHI DENKI BLDG MARUNOUCHI TOKYO100 8310 TELEX J24532 CABLE MELCO TOKYO New publication effective Nov 1998 Specifications subject to change without notice OC112 1 qxp 11 16 98 4 48 PM Page 20 ...

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