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TECHNICAL & SERVICE MANUAL

SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS

Indoor unit

[Model names]

[Service Ref.]

PLFY-P32VKM-A

PLFY-P40VKM-A

PLFY-P50VKM-A

PLFY-P63VKM-A

No. OC253

INDOOR UNIT

Ceiling Cassettes

Series PLFY

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

R407C

2001

R22

OC253---1.qxp 2/14/01 9:51 AM Page 1

Содержание PLFY-P32VKM-A

Страница 1: ...VKM A PLFY P50VKM A PLFY P63VKM A PLFY P63VKM A No OC253 INDOOR UNIT Ceiling Cassettes Series PLFY 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 R407C 2001 R22 ...

Страница 2: ......

Страница 3: ...til just before brazing Store elbows and other joints in a plastic bag If dust dirt or water enters the refrigerant cycle deterioration of the oil and compressor trouble may result Use ESTR ETHER or HAB as the lubricant to coat flares and flange connection parts Use liquid refrigerant to seal the system If gas refrigerant is used to seal the system the composition of the refrigerant in the cylinde...

Страница 4: ...efrigerant No Tool name Specifications 1 Gauge manifold Only for R407C Use the existing fitting SPECIFICATIONS UNF7 16 Use high tension side pressure of 3 43MPa G or over 2 Charge hose Only for R407C Use pressure performance of 5 10MPa G or over 3 Electronic scale 4 Gas leak detector Use the detector for R134a or R407C 5 Adapter for reverse flow check Attach on vacuum pump 6 Refrigerant charge bas...

Страница 5: ...nd heater modes OPERATION SWITCH button This sets the room temperature The temperature setting can be performed in 1 units Setting range Cooler 19 to 30 Heater 17 to 28 TEMP ADJUSTMENT button This switches between continuous operation and the timer operation TIMER button This switches between the operation and stop modes each time it is pressed The lamp on this button lights during operation ON OF...

Страница 6: ...his 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 ten second intervals by pressing the time switch button The start time or stop time is always displayed during the timer operation Display In this display example on the bot tom left a condition where all dis play lamps light is shown for exp...

Страница 7: ...or output External static pressure Liquid side Gas side Heating capacity F a n Dimensions Height Width Depth Electric characteristic Input Cooling Heating Cooling Heating Current PLFY P32VKM A PLFY P40VKM A PLFY P50VKM A PLFY P63VKM A 3 6 4 0 0 13 0 13 0 60 0 60 4 5 5 0 0 13 0 13 0 60 0 60 5 6 6 3 0 14 0 14 0 64 0 64 7 1 8 0 0 15 0 15 0 68 0 68 16 15 14 13 15 14 5 14 13 12 7 1 2 6 35 1 4 35 34 32 ...

Страница 8: ...ansion valve LEV Electric heater H2 240V 28 8W TB2 L N 330V 30A TB5 M1 M2 S 250V 20A Indoor controller board with limit switch Condensation proof Power supply terminal block Transmission terminal block OFF 125 5 ON 85 20 MC8 200V 240V 2 5 2W 5 6R P M PCD 4N230ME INPUT 17 15W 36R Hr Heater resistance 0 6k 10 3 9k 20 2 6k 25 2 2k 30 1 8k 40 1 3k Room temperature thermistor Liquid pipe thermistor DC1...

Страница 9: ... pitch Ceiling hole 690 710 25 35 25 35 690 710 25 35 25 35 Drain hole Terminal block for transmission Terminal block for power supply Terminal block for MA remote controller NOTE 1 The electrical parts box may be removed during servicing When connecting the power line and the control wire provide enough length to the electric wires NOTE 2 When installing the optional high efficiency filter the di...

Страница 10: ...10 5 WIRING DIAGRAM PLFY P32VKM A PLFY P40VKM A PLFY P50VKM A PLFY P63VKM A ...

Страница 11: ...rature thermistor TH21 Gas pipe thermistor TH23 Liquid pipe thermistor TH22 Linear expansion valve Gas pipe Flare connection Gas pipe PLFY P32VKM A PLFY P40VKM A 12 7 1 2 15 88 5 8 Liquid pipe 6 35 1 4 9 52 3 8 Capacity Item PLFY P32VKM A PLFY P40VKM A PLFY P50VKM A PLFY P63VKM A PLFY P50VKM A PLFY P63VKM A ...

Страница 12: ...ng a tester Surrounding temperature 20 30 Measure the resistance after 3 minutes have passed since the power supply was intercepted Surrounding temperature 0 60 Refer to the next page for a detail Refer to the next page for a detail Normal 4 3k 9 6k Abnormal Open or short Normal Approx 14k Abnormal Open or short Normal 327 Abnormal Open or short Motor terminal or Relay connector Normal PLFY P VKM ...

Страница 13: ...mistor R0 6 0k 5 Fixed number of B 3390k 2 Rt 6exp 3390 0 6 0k 10 3 9k 20 2 6k 25 2 2k 30 1 8k 40 1 3k 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 sig...

Страница 14: ...l the way It is not necessary to exchange the linear expansion valve if the leakage is small and not making any trouble Thermistor Liquid pipe 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 th...

Страница 15: ...ane swing function Vane horizontal angle Vane cooling limit angle setting w4 Heat 4degrees up Superheat setting temperature w5 Sub cool setting temperature Heat pump Not available Not available Not available First setting Down B C Not effective Effective 6 2 degrees 10degrees 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 SW1 Mode Selection SW2 Capacity code setting 1 6 1 5 SW3 Function Selection SW4 U...

Страница 16: ...ne when M NET Remote controller is being used When attach the optional high performance filter elements multi function casement to the unit be sure to attach it to the option side in order to prevent the airflow reducing This is the switch to be used when the indoor unit is operated with R2 series outdoor unit as a set If the unit is used at the 230V or 240V area set the voltage to 240V If the uni...

Страница 17: ...tors from the box Red 3P for the fan motor White 2P for pipe temperature detection liquid thermistor Black 2P for pipe temperature detection gas thermistor Blue 2P for the drain pump White 3P for the drain sensor 6 Disconnect the green anti falling wire of the electrical parts box 7 Remove 3 of 4 screws from the electrical parts box and loosen the other screw 8 Pull out the electrical parts box El...

Страница 18: ...r supports 1 2 and 3 9 Pull out the drain pan wPull the left and right of the pan gradually Be careful not to crack or damage the pan Photo 8 Photo 7 Photo 6 Photo 5 Indoor controller board Room temperature thermistor Mounting hole Corner support 1 Corner support 3 VA cover Rubber bush Corner support 2 Screws screws screws Panel Fan guard Temporary hanging hook Temporary hanging hook 6 Removing th...

Страница 19: ...Pull out the drain pump 10 Removing the heat exchanger 1 Remove the panel 2 Remove the fan guard 3 Remove the electrical parts cover 4 Remove the electrical parts box 5 Remove the drain pan 6 Remove the turbo fan 7 Remove the screw of the coil support A 8 Remove 2 screws of the coil support B 9 Remove 2 screws of the coil 10 Remove 4 screws of the piping cover of the outer wall and pull out the pi...

Страница 20: ...ice Unit Amount Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty PLFY P32 P40 P50 P63 VKM A R01 29H 003 R01 29H 500 R01 29H 691 R01 29H 061 PANEL PARTS PLFY P32VKM A PLFY P40VKM A PLFY P50VKM A PLFY P63VKM A 6 PAR 20MAA ON OFF CENTRALLY CONTROLLED ERROR CODE CLOCK ON OFF C CHECK CHECK MODE FILTER TEST RUN FUNCTION C 1Hr NOT AVAILABLE STAND BY DEFROST FILTER CHECK TEST TEMP TIMER SET ...

Страница 21: ...me Specification Q ty set Price Unit Amount Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty PLFY P32 P40 P50 P63 VKM A R01 29H 002 R01 29H 063 R01 29H 223 R01 29H 041 R01 29H 040 R01 29H 056 R01 29H 085 R01 31H 063 R01 E00 673 PANEL PARTS PLFY P32VKM A PLFY P40VKM A PLFY P50VKM A PLFY P63VKM A 1 2 3 1 4 5 6 7 1 8 1 2 2 Part number that is circled is not shown in the figure ...

Страница 22: ...22 30 29 27 25 23 18 17 16 15 12 14 11 10 9 7 6 1 2 3 4 5 32 31 33 35 36 FUNCTIONAL PARTS PLFY P32VKM A PLFY P40VKM A PLFY P50VKM A PLFY P63VKM A 28 8 26 20 19 21 22 24 13 34 ...

Страница 23: ... BOARD POWER BOARD CAPACITOR FAN GUARD ELECTRICAL PARTS COVER ROOM TEMPERATURE THERMISTOR BELL MOUTH TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK DRAIN PLUG CORNER COVER SENSOR HOLDER DRAIN SENSOR LINEAR EXPANSION VALVE DRAIN PUMP PIPE TEMPERATURE THERMISTOR DRAIN SOCKET PIPE TEMPERATURE THERMISTOR TURBO FAN INNER COVER LEG COVER DRAM BASE LEG DRAIN HOSE D S PROTECTOR PAI V30F 250V 6 3A 2 5µF 400V...

Страница 24: ...to change without notice HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN 10 4 Wide panel 10 5 Space panel 10 1 Multi functional casement Part No PAC SE21TM E 10 3 High efficiency filter PAC SE21TM E is required in using this optional part 10 2 Air outlet shutter plate Part No PAC SE14SP E Part No PAC SE13KF E Part No PAC SE06WP E Part No PAC SE01AS E ...

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