Mitsubishi Electric PLFY Series Technical & Service Manual Download

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9-3. TEST POINT DIAGRAM

9-3-1. Indoor controller board

PLFY-P32/40/50/63/80/100/125VBM-E.UK PLFY-P32/40/50/63/80VBM-E

.UK

PLFY-P32/40/50/63/80/100/125VBM-ER2.UK PLFY-P32/40/50/63/80/100/125VBM-ER3.UK

The voltage range of DC12V in this page

is between DC11.5 V to DC 13.7 V.

CN2M

Connect to the terminal block (TB5)
(M-NET transmission connecting wire)
24-30VDC (non-polar)

CN3A

Connect to the terminal block (TB15)
(MA-Remote controller connecting wire)

: 8.7-13V DC (Pin

(+))

LED2

Power supply for
MA-Remote controller

CN32

Remote switch

SW4

Model selection

SW3

Function setting

SW2

Capacity setting

CN6Y

i-See sensor motor output
12VDC pulse output

FUSE
6.3A 250V

SWE

Test run(Drain pump)

Jumper wire J41, J42

Pair No.setting for wireless
remote controller

CND

Power supply for indoor
controller board

: 220-240VAC

CNV

vane motor output
12VDC pulse

CN4Y

i-See sensor

CN60

Linear expansion valve (LEV)
output
12VDC pulse output

CN44

Pipe temperature thermistor

: Liquid (TH22)

: Gas (TH23)

CN4F

Drain float switch (FS)

CN20

Room temperature
thermistor (TH21)

CN27

Damper signal output
12VDC(

: +)

CN3G

Auto grille signal output

CN90

Connect to the wireless
remote controller board
(W.B)

LED1

Main power supply
(Indoor unit : 220-240V)

CNMF

Connect to the
fan motor (MF)

: DC310~340V

: DC15V

CNP

Drain pump output (DP)

: 220-240VAC

CNAC

Auto grille power
(220-240VAC)

CN51

Centrally control

Control signal

12VDC pulse input (

Operation indicator

12VDC (

Malfunction indicator

12VDC (

CN52
Remote indicator

: Status lamp 12VDC (

: +)

Fan motor output (SW1-5 OFF)

Thermostat ON (SW1-5 ON)

: Cooling/Dry status lamp

12VDC (

: +)

: Heating status lamp

12VDC (

: +)

OCH413D

Summary of Contents for PLFY Series

Page 1: ... UK PLFY P50VBM ER2 UK PLFY P63VBM E UK PLFY P63VBM ER2 UK PLFY P80VBM E UK PLFY P80VBM ER2 UK PLFY P100VBM E UK PLFY P100VBM ER3 UK PLFY P125VBM E UK PLFY P125VBM ER3 UK Note This manual does not cover outdoor units When servicing them please refer to the outdoor unit s service manual RoHS compliant products have G mark on the spec name plate December 2012 INDOOR UNIT Model name indication PARTS ...

Page 2: ...UK PLFY P80VBM ER2 UK PLFY P100VBM E UK PLFY P100VBM ER2 UK PLFY P125VBM E UK PLFY P125VBM ER2 UK INDOOR CONTROLLER BOARD I B has been changed S W version up PLP 6BAJ Automatic filter elevation panel option The controller board U B has been changed only for the panel but not for the service part PLFY P32VBM ER2 UK PLFY P32VBM ER3 UK PLFY P40VBM ER2 UK PLFY P40VBM ER3 UK PLFY P50VBM ER2 UK PLFY P50...

Page 3: ... cycle that can cause deterioration of refrigerant oil or malfunction of com pressor If large amount of mineral oil enters that can cause deterio ration of refrigerant oil etc Do not use the existing refrigerant piping The old refrigerant and lubricant in the existing piping contains a large amount of chlorine which may cause the lubricant deterioration of the new unit Use low residual oil piping ...

Page 4: ... the cylinder of syphon stood 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 of 5 ...

Page 5: ...5 5 3 PART NAMES AND FUNCTIONS Drain pipe Filter Vane Gas pipe Liquid pipe Air outlet i see sensor option Air intake Intake grille 3 1 INDOOR UNIT OCH413D ...

Page 6: ...Displays whether timer is on or off 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 air flow is indicated display Blinks when model is selected display display CHECK and TEST RUN display indicate that the unit is being checked or test run ...

Page 7: ...error ON OFF lamp Main display Press to change the operation mode Main menu Press to move the cursor down Function button F1 Main display Press to decrease temperature Main menu Press to move the cursor up Function button F2 Main display Press to increase temperature Main menu Press to go to the previous page Function button F3 Main display Press to change the fan speed Main menu Press to go to th...

Page 8: ...ON OFF operation is centrally controlled Appears when the operation mode is centrally controlled Appears when the preset temperature is centrally controlled Appears when the filter reset function is centrally controlled Indicates when filter needs maintenance Current room temperature appears here Room temperature See the Installation Manual Appears when the buttons are locked Appears when the On O...

Page 9: ...er Vent Lossnay High power Weekly timer Restriction Maintenance Initial setting On Off timer Auto Off timer Temp range Operation lock Manual vane angle Main Sub Timer Main display Contrast Display details Auto mode Administrator password Language selection Service Service menu Input maintenance info Function setting Lossnay City Multi only Check Self check Maintenance password Remote controller ch...

Page 10: ...operate at the preset temperature after performing energy save operation for a specified time period Time can be set to a value from 30 and 120 in 10 minute increments This function will not be valid when the preset temperature ranges are restricted Schedule Set the start stop times to operate the units in the energy save mode for each day of the week and set the energy saving rate Up to four ener...

Page 11: ...ance Select Input maintenance Info from the Service menu to bring up the Maintenance information screen The following settings can be made from the Maintenance Information screen Model name input Serial No input Dealer information input Function setting Make the settings for the indoor unit functions via the remote controller as necessary LOSSNAY setting City Multi only This setting is required on...

Page 12: ...ature display range is 8 39 The display blinks if the temperature is less than 8 or 39 or more Louver display Indicates the action of the swing louver Does not appear if the louver is not running Power On indicator Indicates that the power is on Fan Speed indicator Shows the selected fan speed Ventilation indicator Appears when the unit is running in Ventilation mode Operation Section Temperature ...

Page 13: ...59KF E PAC SH53TM E 9 52 3 8 15 88 5 8 Decoration panel 1 Air outlet shutter plate High efficiency filter element 2 Multi function casement 1 PLFY P VBM E should use together with PLP 6BA 2 PAC SH53TM E is necessary to use with filter PAC SH59KF E 1 Nominal cooling conditions Note Indoor Outdoor Pipe length Level difference 27 DB 19 WB 81 FDB 66 FWB 35 DB 95 FDB 7 5 m 24 9 16 ft 0 m 0 ft 2 Nominal...

Page 14: ...on casement 1 Nominal cooling conditions Note Indoor Outdoor Pipe length Level difference 27 DB 19 WB 81 FDB 66 FWB 35 DB 95 FDB 7 5 m 24 9 16 ft 0 m 0 ft 2 Nominal cooling conditions 27 DB 19 5 WB 81 FDB 67 FWB 35 DB 95 FDB 5 m 16 3 8 ft 0 m 0 ft 3 Nominal heating conditions Unit converter 20 DB 68 FDB 7 DB 6CWB 45 FDB 43 FWB 7 5 m 24 9 16 ft 0 m 0 ft Due to continuing improvement above specifica...

Page 15: ...Y P40VBM E UK PLFY P40VBM E1 UK PLFY P40VBM ER2 UK PLFY P40VBM ER3 UK PLFY P32VBM E UK PLFY P32VBM E1 UK PLFY P32VBM ER2 UK PLFY P32VBM ER3 UK PLFY P50VBM E UK PLFY P50VBM E1 UK PLFY P50VBM ER2 UK PLFY P50VBM ER3 UK PLFY P63VBM E UK PLFY P63VBM E1 UK PLFY P63VBM ER2 UK PLFY P63VBM ER3 UK Room temperature thermistor Fuse Indoor controller board Fan motor Power supply terminal block Transmission ter...

Page 16: ...on terminal block MA remote controller terminal block 8 pole OUTPUT 50W 8 pole OUTPUT 120W MSBPC20M04 DC12V 300 phase PLD 12230ME 1 INPUT 12 10 8W 241 Hr open short detection DC12V Stepping motor drive port dimension 5 2 0 2000pulse EDM 80YGME Note Refer to WIRING DIAGRAM for the supplied voltage 4 3 SOUND LEVEL Measured in anechoic room PLFY P VBM E PLFY P32VBM E 1 UK PLFY P32VBM ER2 UK PLFY P32V...

Page 17: ...ressure level dB 0dB 20Pa Octave band center frequencies Hz 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0 63 125 250 500 1k 2k 4k 8k NC 60 NC 50 NC 40 NC 20 NC 30 Octave band pressure level dB 0dB 20Pa Octave band center frequencies Hz 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0 63 125 250 500 1k 2k 4k 8k NC 60 NC 50 NC 40 NC 20 NC 30 Octave band pressure le...

Page 18: ...m 3 0m Standard 2 7m 3 0m 3 3m High ceiling 3 5m 3 5m 3 5m 4 direction 3 direction 2 direction SWA SWB PLFY P32 40 50 63 80VBM E UK PLFY P32 40 50 63 80VBM E1 UK PLFY P32 40 50 63 80VBM ER2 UK PLFY P32 40 50 63 80VBM ER3 UK PLFY P100 125VBM E UK PLFY P100 125VBM ER2 UK PLFY P100 125VBM ER3 UK Silent 2 7m 3 0m 3 3m Standard 3 2m 3 6m 4 0m High ceiling 4 5m 4 5m 4 5m 4 direction 3 direction 2 direct...

Page 19: ...fan X Auxiliary relay For DC 12V coil rating 1 0W or below Branch duct hole 14 2 8 burring hole Indoor unit 150 cut out hole Fresh air intake hole 175 burring hole pitch Drain pipe Fresh air intake hole diagram Refrigerant pipe 3 2 8 burring hole Branch duct hole diagram view from either side 125 burring hole pitch 100 cut out hole Ceiling 158 120 120 350 90 70 100 100 90 100 130 155 167 5 2 BRANC...

Page 20: ... E UK PLFY P100 125VBM ER2 UK PLFY P100 125VBM ER3 UK Multi function casement High efficiency filter Taking air into the unit Multi function casement Standard filter Multi function casement High efficiency filter Taking air into the unit 5 4 FRESH AIR INTAKE AMOUNT STATIC PRESSURE CHARACTERISTICS Q 0 B A C 1 Curve in the graphs Duct characteristics at site Q A E C 2 Q Qa A D 3 Q Planned amount of ...

Page 21: ...lease choose the grille from a standard grille auto grille 2 As for drain pipe please use VP 25 O D 32 PVC TUBE Drain pump is included Max lifting height is 850mm from the ceiling 3 As for suspension bolt please use M10 or W3 8 Procured at local site 4 Electrical box may be removed for the service purpose Make sure to slack the electrical wire little bit for control power wires connection 5 The he...

Page 22: ...NGE EMERGENCY OPERATION HEAT DOWN EMERGENCY OPERATION COOL UP SYMBOL NAME 1 9 Be sure to turn off the power source and then disconnect fan motor connector Failure to do so will cause trouble in Fan motor A B RED ADDRESS CN43 ADDRESS CN81 RED LED2 ADDRESS CN42 RED RED ADDRESS CN82 VANE CNV WHT SWB SWA SWC SW1 MV MV MV MV CN32 WHT SW3 SW4 SWE SW2 ON OFF ON OFF ON OFF ON OFF 3 9 6 5 4 3 8 5 5 5 5 4 3...

Page 23: ...the detail refer to fig 1 LEGEND LED on indoor board for service CN51 WHT CN100 WHT 1 3 4 5 8 1 5 5 1 IT terminal PAC IT51AD E 2 CN52 GRN CN100 WHT 1 4 5 8 1 5 5 1 IT terminal PAC IT52AD E In connecting optional IT terminal use either CN51 or CN52 which is not connected Be careful for connector colors M M M M Be sure to turn off the source power and then disconnect fan motor connector Failure to d...

Page 24: ...2 6 35 1 4 PLFY P50VBM E PLFY P50VBM E1 12 7 1 2 15 88 5 8 6 35 1 4 9 52 3 8 PLFY P63 80VBM E PLFY P63 80VBM E1 15 88 5 8 9 52 3 8 PLFY P100 125VBM E 15 88 5 8 19 05 3 4 9 52 3 8 Item Capacity Unit mm inch Gas pipe Liquid pipe PLFY P32 40 50VBM ER2 PLFY P32 40 50VBM ER3 12 7 1 2 6 35 1 4 PLFY P63 80 100 125VBM ER2 PLFY P63 80 100 125VBM ER3 15 88 5 8 9 52 3 8 Item Capacity PLFY P32 40 50 63 80 100...

Page 25: ...ellow Red Blue Red Orange Red White Connector Normal 300 Measure the resistance between the terminals with a tester At the ambient temperature of 20 30 Abnormal Open or short Red Yellow Red Blue Red Orange Red White Connector Normal 250 Disconnect the connector then measure the resistance valve with a tester Linear expansion valve LEV Abnormal Open or short Normal 200 10 White Red Yellow Brown Ora...

Page 26: ... TH22 Gas pipe temperature thermistor TH23 Thermistor R0 15k 3 Fixed number of B 3480 2 Rt 15exp 3480 0 15k 10 9 6k 20 6 3k 25 5 4k 30 4 3k 40 3 0k Thermistor for lower temperature 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 pos...

Page 27: ...ight 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 indoor...

Page 28: ... the connector CNMF Measure the voltage in the indoor controller circuit board TEST POINT VDC between 1 and 4 of the fan connector VDC DC 310 340 V TEST POINT VCC between 5 and 4 of the fan connector VCC DC 15 V Wiring recovery Replace the drain pump Replace indoor controller board Replace the fan motor Replace indoor controller board Replace the fan motor Is the voltage normal Is there contact fa...

Page 29: ...unction 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 Initial setting Set while the unit is off Set while the unit is off Set for each capacity Indoor controller board ON OFF 1 2 3 4 5 Capacity P32 P63 P40 P80 P125 P50 P100 SW 2 Capacity SW 2 Capacity SW 2 ON OFF 1 2 3 4 5 6 ON OFF 1 2 3 4 5 6 ON O...

Page 30: ... Initial setting Address board Address board Initial setting Address board 3 2 1 2 3 4 SW12 10 SW11 1 SW12 SW11 SW14 SW14 Initial setting Effective timing Before power supply ON Under operation or suspension Silent 2 5m 2 7m 3 0m Standard 2 7m 3 0m 3 3m High ceiling 3 5m 3 5m 3 5m 4 direction 3 direction 2 direction SWA SWB PLFY P32 P40 P50 P63 P80VBM E PLFY P100 P125VBM E Silent 2 7m 3 0m 3 3m St...

Page 31: ...er when installed 2 indoor units or more are near Pair No setting is necessary Pair No setting is available with the 4 patterns Setting patters A to D Make setting for J41 J42 of indoor controller board and the Pair No of wireless remote controller You may not set it when operating it by 1 remote controller Setting for indoor unit Jumper wire J41 J42 on the indoor controller board are cut accordin...

Page 32: ...ireless remote controller CND Power supply for indoor controller board 3 5 220 240VAC CNV vane motor output 12VDC pulse CN4Y i See sensor CN60 Linear expansion valve LEV output 12VDC pulse output CN44 Pipe temperature thermistor 1 2 Liquid TH22 3 4 Gas TH23 CN4F Drain float switch FS CN20 Room temperature thermistor TH21 CN27 Damper signal output 12VDC 1 CN3G Auto grille signal output CN90 Connect...

Page 33: ...0VBM E1 UK PLFY P32 40 50 63 80 100 125VBM ER2 UK PLFY P32 40 50 63 80 100 125VBM ER3 UK SW1 Function setting SWA Ceiling height selector SWB Discharge outlet number selector SW12 Address setting 10ths digit SW11 Address setting 1s digit SWC Option selector SW14 Branch No OCH413D ...

Page 34: ...ow outreach distance is different depending on indoor units and air volume ceiling height so airflow may not reach the indicated ceiling height as shown in the above table Initial setting The black square indicates a switch position The black square indicates a switch position 1 Ensure that the air conditioner is not running 2 Press the Down button to lower the air intake grille By default the air...

Page 35: ... unit number for the units to whose falls panel with the F2 or F3 button and press the button Navigating through the screens To go back to the Main menu button To return to the previous screen button Select Auto descending panel with the F1 or F2 button and press the button When using the auto descending panel always set the Address and Unit No with Service Function setting Ref address Refrigerant...

Page 36: ... 2 m 3 6 m and 4 0 m These should be used only as a guide You should lower the air intake grille yourself to check the exact distance You cannot stop the operation while the air intake grille is rising If you press the button while the air intake grille is moving up the air intake grille maystop rising but it will not stop immediately Stand by for raising display Raising display blinking Stopped d...

Page 37: ...t address No can be changed by using the TEMP buttons when the panel displays a or b Every time you press the Mode selection button the target of operation will change as illustrated below 6 Continue to press the Mode selection button until Waiting for up down operation is displayed The following steps are the same as steps 3 6 described in the General Operation section Refer to that section In St...

Page 38: ...he intake grille has been raised the set distance but the storage detection switch is not engaged In this case the operation below will be repeated up to 4 times 10 cm down 30 cm up 10 cm down 30 cm up No load detection Case UP DOWN commands with no grille suspended When both wire 1b and wire 2b are not loaded the wires will not move Obstacle detection Case Making contact with something while lowe...

Page 39: ...switch heating down UK1 Up down machine SW2 Emergency switch cooling up MU1 Motor Up down LS1 Limit switch storage detection LS21 Limit switch tension detection R B Wired remote controller I B Indoor controller board SW22 10 3 2 Dip SW 2 type SW2 SYMBOL NAME SYMBOL NAME U B CONTROLLER BOARD UK1 I B W B UP DOWN MACHINE FUSE FUSE T3 15AL250V M MOTOR FOR GRILLE UP DOWN LS21 LIMIT SWITCH TENSION DETEC...

Page 40: ...e grille Lower the air intake grille again and check whether the filter is installed in the correct position Lower the air intake grille again and hook on the air intake grille This is normal This is normal Power failure Batteries are not inserted into the wireless remote controller Or battery power is running low There is something on the air intake grille Or something is stuck in the air intake ...

Page 41: ...B 1 Remove the air intake grille and the filter See Figure 1 2 Remove the 2 screws from the electrical box cover 3 Disconnect the connectors CNMF White 7P for fan motor CN44 White 4P for thermistor TH22 TH23 CNP Blue 3P for drain pump CN4F White 4P for float switch CN01 Black 5P for earth and TB2 CNV White 20P for vane motor CN81 CN42 Red 8P 4P for address board CN2M Blue 2P for TB5 4 Remove the 6...

Page 42: ... the turbo fan nut 4 Pull out the turbo fan 5 Remove the wire cover 3 screws 6 Remove 2 wiring clamps 7 Disconnect the connector of the fan motor CNMF 8 Remove the 3 nuts and washers and rubber mounts of the fan motor 8 Removing the drain pan 1 Remove the air intake grille and the filter See Figure 1 2 Remove the 2 screws from the electrical box cover 3 Disconnect the connectors Refer to procedure...

Page 43: ... 9 Drain pump Hose band Float switch Drain pump assembly fixing screws Drain pump fixing screws Float switch fixing screws 11 Removing the heat exchanger 1 Remove the drain pan See Photo 6 2 Remove the 3 screws of the piping cover and pull out piping cover 3 Remove the 2 screws of coil plate 4 Remove the 2 screws of the coil 5 Remove the screw of the coil support 6 Pull out the heat exchanger Phot...

Page 44: ...EDITION C PDF 6 Distributed in Feb 2009 No OCH413 REVISED EDITION B PDF 6 Distributed in Oct 2007 No OCH413 REVISED EDITION A PDF 7 Distributed in Mar 2007 No OCH413 PDF 7 Made in Japan New publication effective Dec 2012 Specifications are subject to change without notice HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

Page 45: ...FY P80VBM PLFY P32 125VBM E Parts Catalogue OCB413E PLFY P32 125VBM E Instruction Book RG79D836H01 PLFY P32 125VBM E Installation Manual RG79D836K01 PLFY P32 125VBM E Service Manual OCH413D PLFY P32 125VBM Declaration of Conformity ...

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