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Mitsubishi Electric PLFY-P20VCM-E2.TH, Техническое и сервисное руководство

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16

8

TROUBLESHOOTING

8-1. HOW TO CHECK THE PARTS
PLFY-P20VCM-E2.TH PLFY-P25VCM-E2.TH
PLFY-P32VCM-E2.TH PLFY-P40VCM-E2.TH

Parts name

Check points

Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature 10

~30

)

Disconnect the connector then measure the valve resistance with a tester.

Measure the resistance between the terminals with a tester.
(At the ambient temperature 20

~30

)

Measure the resistance between the terminals with a tester.
(At the ambient temperature 20

~30

)

Measure the resistance after 3 minutes have passed since the power supply was intercepted.
(At the ambient temperature 0

~60

)

Vane motor (MV)

Linear expansion
valve (LEV)

Drain pump (DP)

Drain sensor (DS)

Refer to the next page for the details.

Refer to the next page for the details.

Thermistor (TH21)

 (Room temperature 

  detection)

Thermistor (TH22) 

 (Pipe temperature 

  detection/ Liqid)

Thermistor (TH23)

 (Pipe temperature 

  detection/ Gas)

1

3

Yellow

Relay

connector

Yellow

1
2
3

Normal

4.3k

~9.6k

Abnormal

Open or short

Abnormal

Open or short

Normal

0.6k

~6.0k

Abnormal

Open or short

Normal

200

$

10%

White-Red

Yellow-Brown Orange-Red

Blue-Brown

Normal

Connector

Abnormal

300

Open or short

Normal

Abnormal

290

Open or short

Orange

Red

White

Blue

Brown

Yellow

M

Orange

Red

White

Red — Yellow
Red — Blue
Red — Orange
Red — White

Blue

Yellow

Fan motor (MF)

M

Refer to the next 
page for the details.

BLK

RED ORN

YLW

BLU

BRN

WHT

P

Measure the resistance between the terminals with a tester.

(Coil wiring temperature 10°C ~ 30°C)

Normal

WHT-BLK

BLK-BLU

BLU-YLW

YLW-RED
RED-BRN

390

~423

82

~90

28

~32

158

~172

378

~409

157

~170

44

~49

306

~332

312

~338

137

~149

44

~49

296

~321

302

~327

91

~100

38

~42

265

~288

Abnormal

Opened or

short-circuited

#

 : Thermal fuse 145°C±2°C

PLFY-P20VCM-E2 PLFY-P25VCM-E2 PLFY-P32VCM-E2 PLFY-P40VCM-E2

Содержание PLFY-P20VCM-E2.TH

Страница 1: ...LOW SYSTEM 11 5 OUTLINES AND DIMENSIONS 13 6 WIRING DIAGRAM 14 7 REFRIGERANT SYSTEM DIAGRAM 15 8 TROUBLESHOOTING 16 9 DISASSEMBLY PROCEDURE 23 SPLIT TYPE HEAT PUMP AIR CONDITIONERS R407C R22 R410A Model name indication No OCH463 PLFY P20VCM E2 PLFY P25VCM E2 PLFY P32VCM E2 PLFY P40VCM E2 May 2009 Note This manual describes only service data of the indoor units RoHS compliant products have G mark o...

Страница 2: ... parts If large amount of mineral oil enters that can cause deterioration of refrigerant oil etc Use liquid refrigerant to charge 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 refrigerant may cause th...

Страница 3: ...um pump 6 Refrigerant charge base 7 Refrigerant cylinder For R407C Top of cylinder Brown Cylinder with syphon 8 Refrigerant recovery equipment 2 Refrigerant recharging 1 Refrigerant recharging process 1Direct charging from the cylinder R407C cylinder which is available on the market has a syphon pipe Leave the syphon pipe cylinder standing and recharge it By liquid refrigerant 2 Recharge in refrig...

Страница 4: ...ith care If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor Do not use a charging cylinder If a charging cylinder is used the composition of refrigera nt will change and the efficiency will be lowered Flare tool Electronic refrigerant charging scale Vacuum pump adaptor Size adjustment gauge Gauge manifold Torque wren...

Страница 5: ...th the cylinder of syphon standing vertically Refrigerant is charged from liquid phase Gravimeter Unit 3 Service tools Use the below service tools as exclusive tools for R410A refrigerant No Tool name Specifications 1 Gauge manifold Only for R410A Use the existing fitting specifications UNF1 2 Use high tension side pressure of 5 3MPa G or over 2 Charge hose Only for R410A Use pressure performance ...

Страница 6: ...T CLOCK ON OFF Temperature setting buttons Down Up Timer Menu button Monitor Set button Mode button Return button Set Time buttons Back Ahead Timer On Off button Set Day button Opening the lid ON OFF button Fan Speed button Filter button Enter button Test Run button Check button Clear button Airflow Up Down button Louver button Operation button To return operation number Ventilation button Operati...

Страница 7: ...imer is off Temperature Setting Shows the target temperature Day of Week Shows the current day of the week Time Timer Display Shows the current time unless the simple or Auto Off timer is set If the simple or Auto Off timer is set the time to be switched off is shown Sensor indication Displayed when the remote controller sensor is used Locked indicator Indicates that remote controller but tons hav...

Страница 8: ... current time display Displays the order of timer operation display Displays whether timer is on or off In case the outdoor unit is cool only type the heating and auto mode are not available Buttons used to set the hour and minute of the current time and timer settings h and min buttons display display FAN SPEED display indicates which fan speed has been selected display The vertical direction of ...

Страница 9: ...ey heat insulation White Munsell 6 4Y 8 9 0 4 Cross fin Aluminum fin and copper tube Turbo fan 1 Single phase induction motor Direct driven by motor Polyethylene foam PP honeycomb fabric long life type Fuse LEV R410A R407C R22 CITY MULTI Installation manual Instruction book Drain hose I D 32mm 1 1 4 Wireless junction cable Decoration panel SLP 2AAW or SLP 2ALW PLFY P VCM E2 should use together wit...

Страница 10: ...on Liquid Thermistor Pipe temperature detection Gas Fuse Indoor controller board Fan motor with Thermal fuse Thermal fuse Electric heater Condensation proof Power supply terminal block Transmission terminal block MA remote controller terminal block 6 pole OUTPUT 15W PK6V15 LD 6 pole OUTPUT 11W PK6V11 LF 6 pole OUTPUT 20W PK6V20 LM 6 pole OUTPUT 20W PK6V20 LL MSBPC20M13 DC12V 300 phase PLD 12230ME ...

Страница 11: ...te controller adapter PAC SA88HA E to the connector CN51 on the indoor controller board 2 Drive the relay after connecting the 12V DC relay between the Yellow and Orange connector wires MB Electromagnetic switch power relay for duct fan X Auxiliary relay For DC 12V coil rating 1 0W or below CN51 Multiple remote controller adapter PAC SA88HA E Indoor controller board Distance between indoor control...

Страница 12: ... the plastic tape Vane motor Horizontal vane Connector Unlocking button Vane motor 3 Set a vertical vane of the air outlet which is to be fixed by the hand slowly within the range in the table below Measured standard posi tion of the grille Horizontal vane Standard of horizontal position Dimension A mm 21 25 28 30 Level 30 Min Downward 45 Downward 55 Downward 70 Max Dimension between 21 mm and 30 ...

Страница 13: ...335 Ceiling hole Grille Drain pipe VP 25 connection O D 32 Drain hole 55 35 35 55 Auto vane Grille Air intake hole Air outlet hole 301 Detail drawing of fresh air intake Ceiling surface Cut out hole Burring hole 118 25 377 377 650 182 48 Terminal block 235 208 27 5 193 20 93 66 121 87 31 15 37 570 335 199 352 335 570 Grille Drain pipe Drain hole 55 35 35 55 Auto vane Grille Air intake hole Air out...

Страница 14: ...14 WIRING DIAGRAM 6 PLFY P20VCM E2 TH PLFY P25VCM E2 TH PLFY P32VCM E2 TH PLFY P40VCM E2 TH ...

Страница 15: ...xchanger Thermistor Room temparature detection TH21 Thermistor Pipe temperature detection Gas TH23 Thermistor Pipe temperature detection Liquid TH22 Linear expansion valve Gas pipe Liquid pipe Flare connection Gas pipe Liquid pipe 12 7 1 2 6 35 1 4 PLFY P20VCM E2 TH PLFY P25VCM E2 TH PLFY P32VCM E2 TH PLFY P40VCM E2 TH ...

Страница 16: ...istor TH21 Room temperature detection Thermistor TH22 Pipe temperature detection Liqid Thermistor TH23 Pipe temperature detection Gas 1 3 Yellow Relay connector Yellow 1 2 3 Normal 4 3k 9 6k Abnormal Open or short Abnormal Open or short Normal 0 6k 6 0k Abnormal Open or short Normal 200 10 White Red Yellow Brown Orange Red Blue Brown Normal Connector Abnormal 300 Open or short Normal Abnormal 290 ...

Страница 17: ...wn Red Blue Orange Yellow White M 4 6 2 3 5 1 Blue Brown Yellow Orange Red White Linear expansion valve 1 Operation summary of the linear expansion valve Linear expansion valves open close through the use of a stepping motor after receiving the pulse signal from the indoor controller board Valve position can be changed in proportion to the number of pulse signals Connection between the indoor cont...

Страница 18: ...ot light while the signals are output or keeps lighting even after the signals stop Countermeasures Exchange the indoor con troller board at drive circuit failure Linear expansion valve mechanism is locked Valve does not close completely Wrong connection of the connector or contact failure To check the linear expansion valve operate the indoor unit in fan mode and at the same time operate other in...

Страница 19: ... Superheat setting temperature 5 Sub cool setting temperature 5 Heat pump Not available Not available Not available First setting Down A B C Not effective Effective 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 SW2 Capacity code setting 1 6 1 5 SW3 Function setting Thermistor Room temperature detection position Initial setting ON OFF 1 2 3 4 5 6 7 8 9 10 Indoor controller board Indoor controller board...

Страница 20: ...K LOUVER TEST RUN AUTO STOP AUTO START h min RESET SET CLOCK MODEL SELECT Model No Temperature button SET button Pair No Minute button To operate each indoor unit by each remote controller when installed 2 indoor units or more are near Pair No setting is necessary Pair No setting is available with the 4 patterns Setting patterns A to D Make setting for J41 J42 of indoor controller board and the Pa...

Страница 21: ...polar CN3A Connect to the terminal block TB15 MA Remote controller connecting wire Between 1 to 3 8 7 13V DC Pin1 CN29 Pipe temperature detection Gas TH23 CN21 Pipe temperature detection Liquid TH22 LED2 Power supply for MA Remote controller SW4 Model selection CN60 Linear expansion valve output LEV CN31 Drain sensor DS SW3 Function setting CN51 Centrally control SW2 Capacity setting CN52 Remote i...

Страница 22: ...PLFY P20VCM E2 TH PLFY P25VCM E2 TH PLFY P32VCM E2 TH PLFY P40VCM E2 TH CNSK Connect to the indoor controller board CNDK Between 1 to 3 220 240V AC CN2S Connect to the indoor controller board CN2D Between 1 to 3 12 5 13 7V DC Pin1 ...

Страница 23: ...crews of fan guard Air intake grille knob 3 Removing the panel 1 Remove the air intake grille Refer to 1 Corner panel See figure 2 1 Remove the screw of the corner 2 Slide the corner panel to the direction of the arrow 3 and remove the corner panel Panel See photo 2 1 Disconnect the connector that connects with the unit 2 Remove the 2 screws from the panel and loose other 2 screws fixed to the ova...

Страница 24: ...tor of the FAN from the indoor con troller board 6 Remove the 3 screws fixed to the piping cover and remove the piping cover See photo 9 7 Remove the 6 screws fixed to the flat plate and remove the flat plate 8 Disconnect the lead wires to the direction of the fan motor and remove the 3 nuts of the fan motor Photo 5 6 Removing the drain pan 1 Remove the panel Refer to 3 2 Remove the room temperatu...

Страница 25: ...ee photo 9 from the heat exchanger and remove the heat exchanger 9 Removing the drain pump DP and drain sensor DS 1 Remove the panel Refer to 3 2 Remove the drain pan Refer to 6 3 Remove the 2 screws fixed to the control box cover and remove the control box cover 4 Remove the connectors of the CNP and the CN31 from the indoor controller board 5 Remove the 1 screw fixed to the cover and remove the ...

Страница 26: ...26 ...

Страница 27: ...27 ...

Страница 28: ...RIC ENGINEERING CO LTD Distributed in May 2009 No OCH463 PDF 6 Made in Japan New publication effective May 2009 Specifications subject to change without notice HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN TM ...

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