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Mitsubishi Electric PFFY-P20VLEM-A, Technical & Service Manual

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Mitsubishi Electric PFFY-P20VLEM-A Technical & Service Manual Download Page 12

11

Strainer (#100mesh)

Strainer (#100mesh)

Heat exchanger

Room temparature thermistor TH21

Gas pipe thermistor TH23

Liquid pipe thermistor TH22

Linear expansion valve

Gas pipe

Flare connection

Gas pipe

PFFY-P20,25,32,40VLEM-A

ø

12.7<1/2F>

PFFY-P50,63VLEM-A

PFFY-P20,25,32,40VLRM-A

PFFY-P50,63VLRM-A

ø

15.88<5/8F>

Liquid pipe

ø

6.35<1/4F>

ø

9.52<3/8F>

Capacity

Item

REFRIGERANT SYSTEM DIAGRAM

6

Summary of Contents for PFFY-P20VLEM-A

Page 1: ...Y P40VLRM A PFFY P50VLEM A PFFY P50VLRM A PFFY P63VLEM A PFFY P63VLRM A 2001 Models Floor Standing Type Series PFFY CONTENTS SAFETY PRECAUTIONS 1 1 FEATURES 3 2 PART NAMES AND FUNCTIONS 4 3 SPECIFICATION 6 4 OUTLINES AND DIMENSIONS 8 5 WIRING DIAGRAM 10 6 REFRIGERANT SYSTEM DIAGRAM 11 7 TROUBLE SHOOTING 12 8 DISASSEMBLY PROCEDURE 17 For use with the R407C R22 Exposed type Concealed type ...

Page 2: ...ld the refrigerant leak and cause the safety limit to be exceeded hazards due to lack of oxygen in the room could result When moving and reinstalling the air conditioner consult the dealer or an authorized technician If the air conditioner is installed improperly water leakage elec tric shock or fire may result After completing installation work make sure that refrigerant gas is not leaking If the...

Page 3: ...lange connections The refrigerator oil will degrade if it is mixed with a large amount of mineral oil Use liquid refrigerant to fill the system If gas refrigerant is used to seal the system the composition of the refrigerant in the cylinder will change and performance may drop Do not use a refrigerant other than R407C If another refrigerant R22 etc is used the chlorine in the refrig erant may caus...

Page 4: ...LEM A PFFY P32VLRM A PFFY P40VLEM A PFFY P40VLRM A PFFY P50VLEM A PFFY P50VLRM A PFFY P63VLEM A PFFY P63VLRM A 2 2 2 5 2 8 3 2 3 6 4 0 4 5 5 0 5 6 6 3 7 1 8 0 Floor Standing Type Series PFFY Models Cooling capacity Heating capacity kW FEATURES 1 Concealed type Exposed type ...

Page 5: ...ation Button 4 Time selection Button Time setting Button 5 Louver Button 6 Fan speed adjustment Button 7 Up down airflow direction Button 8 Ventilation Button 9 Checking built in Button 0 Test run Button A Filter Button B ON OFF Button C Position of built in room temperature Ne ver expose the remote controller to direct sunlight Doing so can result in the erroneous measure ment of room temperature...

Page 6: ... Current time Timer B Centralized control C Timer ON D Abnormality occurs E Operation mode COOL DRY AUTO FAN HEAT F Preparing for Heating mode G Defrost mode H Set temperature I Power ON J Louver K Not available function L Ventilation M Function setting mode N Test run mode O Error check mode P Filter sign Q Set effective for 1 hr R Sensor position S Room temperature T Airflow U Fan speed ...

Page 7: ...ish Munsel No Net weight Heat exchanger Air filter Drain pipe dimension Noise level Low High Voltage Frequency Cooling Heating Cooling Heating Height Width Depth Type External static pressure Type Output Gas Flare Liquid Flare V Hz kW kW kW kW A A mm mm mm kg m3 min Pa kW mm mm 3 6 4 0 Galvanized steel plate 639 220 20 Cross fin Alminium plate fin and copper tube 0 Single phase induction motor PP ...

Page 8: ...kΩ 40 C 3 0kΩ TH22 Gas pipe thermistor FUSE 250V 6 3A TB2 L N 330V 30A TB5 TB15 1 2 M1 M2 S 300V 10A Fuse Indoor con troller board Power supply terminal bed Transmission terminal bed OFF 130 C 5 C ON 90 C 20 C Room temperature thermistor Fan motor with Inner thermostat 4 pole OUTPUT 15W CU 0206B A 4 pole OUTPUT 15W CU 0206B A 4 pole OUTPUT 18W CU 0207B A 4 pole OUTPUT 30W CU 0303B A 4 pole OUTPUT ...

Page 9: ...pply grille Floor mounting hole 2 12 16 Wall mounting hole 2 2 12 16 Piping space 6 170 25 183 5 21 106 B 170 300 75 500 20 35 220 60 40 120 B A 10 220 220 10 Hose accessory Strainer Drain pan Air filter 430 90 45 D 1000 1410 PFFY P50VLEM A PFFY P32VLEM A PFFY P25VLEM A Model ø6 35 ø6 35 ø12 7 ø12 7 730 610 720 600 760 640 1170 1050 F Liquid E Gas D C B A Refrigerant piping flare connection Gas E ...

Page 10: ... 480 730 692 760 1006 Dimensions Model PFFY P63VLRM A PFFY P40VLRM A PFFY P32VLRM A PFFY P25VLRM A 2 2 12 16 300 170 75 2 12 16 B 430 639 90 106 B 45 76 D ø 9 52 ø 6 35 ø 6 35 ø 15 88 ø 12 7 ø 12 7 7 5 4 720 480 360 970 730 610 932 692 572 1000 760 640 1246 PFFY P50VLRM A ø 9 52 ø 15 88 7 720 970 932 1000 1246 1006 886 F E D C B A Duct mounting hole 2 ø 4 7 8 98 30 49 10 220 35 50 100 84 29 C E 12...

Page 11: ...on Address board Indoor controller board Capacitor for MF Fan motor NAME SYMBOL Electronic linear expan valve Transformer Fuse AC250V 6 3A F NAME SYMBOL SYMBOL EXPLANATION S W 4 I B S W 1 4 A B T H 2 3 S W 3 I B S W 2 I B S W 1 A B S W 1 2 A B S W 1 1 A B T H 2 2 T H 2 1 L E V T F A B I B C M F C TB5 TRANSMISSION TERMINAL BED TB15 TRANSMISSION TERMINAL BED TB2 1 2 3 45 6 7 8 0 8 7 6 5 4 3 2 1 0 9 ...

Page 12: ...pipe thermistor TH23 Liquid pipe thermistor TH22 Linear expansion valve Gas pipe Flare connection Gas pipe PFFY P20 25 32 40VLEM A ø12 7 1 2F PFFY P50 63VLEM A PFFY P20 25 32 40VLRM A PFFY P50 63VLRM A ø15 88 5 8F Liquid pipe ø6 35 1 4F ø9 52 3 8F Capacity Item REFRIGERANT SYSTEM DIAGRAM 6 ...

Page 13: ... 5 Orange Red 4 6 Blue Brown 1 2 3 1 2 3 CNT T CN3T Red Blue Blue White 1 2 3 4 5 6 LEV White Yellow Orange Blue Red Brown CN60 Parts name Check points 1 Blue Black Red White Yellow White Relay connector C PFFY P20 50 VLEM A VLRM A PFFY P63 VLEM A VLRM A Motor terminal or Relay connector Normal Abnormal Open or short Measure the resistance between the terminals using a tester at 20 C Motor termina...

Page 14: ...istor TH22 Gas pipe temparature thermistor TH23 Drain sensor DS Thermistor R0 15kΩ 3 Fixed number of B 3480kΩ 2 Rt 15exp 3480 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 2kΩ 30 C 4 3kΩ 40 3 0kΩ Thermistor for lower temperature Linear expansion valve 1 Operation summary of the linear expansion valve Linear expansion valve open close through stepping motor after receiving the pulse signal from the indoor ...

Page 15: ...ed all the way It is not necessary to exchange the linear expansion valve if the leakage is small and not making any trouble Thermistor TH21 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 ...

Page 16: ... OFF 1 2 3 4 5 6 ON OFF 1 2 3 4 5 6 MODELS SW2 MODELS SW2 MODELS SW2 PFFY P20VLEM A PFFY P40VLEM A PFFY P25VLEM A PFFY P25VLRM A Address board At delivery Indoor controller board Indoor controller board Indoor controller board At delivery At delivery SW4 Unit Selection SW3 Function Selection SW2 Capacity code setting SW1 Mode Selection Switch Pole Function Built in remote controller Indoor unit Se...

Page 17: ... mance filter elements filter casement to the unit be sure to attach it to the option side in order to prevent the air flow reducing Address setting should be done when network remote controller PAR F25MA is being used This is the switch to be used when the indoor unit is operated with R2 series outdoor unit as a set 220V 240V 220V 240V Address board At delivery 2 SW5 Voltage Selection If the unit...

Page 18: ... the front panel A 1 Remove the fixing screws two of the front panel A Fig 1 2 Hold the bottom of the front panel with your hands and gently lift it The front panel should fall down forward Fig 2 2 Removing the control box cover B 1 Remove the fixing screws two of the cover B and remove the cover Fig 3 17 OPERATING PROCEDURE PHOTOS ...

Page 19: ...side casing 1 Open the control panel cover A remove the fixing screws two of the securing cover Fig 1 2 Pull up the side casing B Fig 2 OPERATING PROCEDURE PHOTOS 2 Removing the thermistor 1 Remove the fixing screws three remove the cover C and D Fig 3 2 Remove the thermistor gas E and the thermistor liquid F Fig 4 ...

Page 20: ...rainpan 1 Remove the fixing screw of the side frame by the control box Fig 1 2 Slide the drainpan in the direction of the arrow 8 4 DRAINPAN 1 Removing the thermistor 1 Remove the thermistor under the control box 8 3 THERMISTOR Intake air temperature detection PHOTOS OPERATING PROCEDURE ...

Page 21: ...e fan section in direction of the arrow 2 Removing the fan motor Fig 2 1 Remove the fixing screws two b of the fan cas ing A 2 Remove the fan motor shaft fixing screw and remove the fan casing A and sirroco fan 3 Remove the fixing screws two c of the motor fix tures two and remove the motor Notice In case of the Model PFFY P32 63 stick out the motor shafts on both side of the motor ...

Page 22: ...Removing the casing 1 Remove the fixing screws six and remove the casing Fig 1 2 Removing the cover1 2 with procedure 8 2 Fig 2 3 Removing the Heat exchanger 1 Remove the fixing screws four and remove the heat exchanger support Fig 3 2 Remove the heat exchanger moving from side to side ...

Page 23: ...y 1 Remove the fixing screws nine of the plate A and remove the plate Fig 1 2 Removing the air diffuser ass y 1 Remove the fixing screws eight of the air diffuser ass y B and remove it Fig 2 Note Without this section almost the disassembly procedures are same as Exposed type PFFY P VLEM and Concealed type PFFY P VLRM ...

Page 24: ...OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Issued in May 2001 MEE01K053 Printed in Japan New publication effective May 2001 Specifications subject to change without notice ...

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