Mitsubishi Electric Mr.SLIM PCFY Series Service Manual Download Page 42 | Manualshive

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42

DISASSEMBLY PROCEDURE

12

OPERATING PROCEDURE

PHOTOS & ILLUSTRATIONS

1. Removing the air intake grille

(1) Slide the knob of air intake grille toward the arrow

1

to

open the air intake grille.

(2) Remove drop prevention hook from the panel.
(3) Slide the shaft in the hinge to the direction of the arrow

2

and remove the air intake grille.

Be careful when removing heavy parts.

PLA-RP35BA PLA-RP50BA PLA-RP60BA PLA-RP71BA
PLA-RP100BA PLA-RP125BA PLA-RP140BA
PLA-RP35BA

1

PLA-RP50BA

1

PLA-RP60BA

1

PLA-RP71BA

1

PLA-RP35BAR1 PLA-RP50BAR1 PLA-RP60BAR1 PLA-RP71BAR1

2. Removing the room temperature thermistor (TH1)

(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 2 screws from the electrical box.
(3) Disconnect the connector CN20 (Red) from the indoor con-
troller

board.

(4) Remove the room temperature thermistor and holder.

3. Removing the reactor (DCL)

(1) Remove the air intake grille and the filter. (See Figure 1)
(2) Remove the 2 screws from the reactor cover.
(3) Disconnect the relay connector of reactor.
(4) Remove 2 reactor fixing screws and remove the reactor.

4. Removing the indoor controller board (I.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 (TH2/ TH5)

CNP

(Blue/ 3P) for drain pump

CN4F (White/ 4P) for float switch

CN01 (Black/ 5P) for earth and reactor

CNV

(White/ 20P) for vane motor

(4) Remove the 6 supports from indoor controller board.
(5) Remove the indoor controller board.

5. Removing the electrical box

(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 4)
(4) Remove 2 electrical box fixing screws and remove 2 hooks.
(5) Pull the electrical box.

<Electrical parts in the electrical box>

Indoor controller board
Terminal block (TB4)(TB5)

Figure 1

Filter

Reactor cover

Photo 1

Electrical box cover

Fixing screw

(Electrical box)

Fixing
screw
(reactor)

Photo 2

Electrical box

Electrical box
Fixing screw

Indoor controller
board (I.B)

Electrical box
Fixing screw

Bell mouth

Room temp.
thermistor (TH1)

Turbo fan

OCH416D

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Summary of Contents for Mr.SLIM PCFY Series

Page 1: ...TEMP ON OFF TEMP PARTS CATALOG OCB416 No OCH416 REVISED EDITION D Note This manual describes only service data of the indoor units RoHS compliant products have G mark on the spec name plate Indoor unit Model names Service Ref Please void OCH416 REVISED EDITION C PLA RP35BA PLA RP50BA PLA RP60BA PLA RP71BA PLA RP100BA PLA RP125BA PLA RP140BA PLA RP35BA PLA RP35BA1 PLA RP35BAR1 PLA RP50BA PLA RP50BA...

Page 2: ...t not for the service part Service Ref Service Manual No SUZ KA60 71VA3 TH A OCH511 OCB511 PUHZ RP71 100 125 140VHA 1 A OC337 PUHZ RP200 250YHA 1 A OC339 SUZ KA60 71VA 1 TH A SUZ KA60VAR2 TH A OC323 PUHZ RP71 100 125 140VHA2 1 A PUHZ RP100 125 140YHA2 1 A OCH422 OCB422 PUHZ BP100 125 140VHA A PUHZ BP200 250YHA A OCH423 OCB423 MXZ 8A140VA2 VA3 OC316 Series Outdoor unit Data Book No PUHZ RP HA2 OCS0...

Page 3: ... inside refrigerant piping can cause deterio ration of refrigerant oil etc If dirt dust or moisture enters into refrigerant 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 Ventilate the room if refrigerant leaks during operation If refrigerant comes into contact with a fla...

Page 4: ...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 09MPa G or over 3 Electronic scale 4 Gas leak detector Use the detector for R134a R407C or R410A 5 Adaptor for reverse flow check Attach on vacuum pump 6 Refrigerant charge base 7 Refrigerant cylinder Only for R410A Top of cylinder P...

Page 5: ...s 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 display...

Page 6: ...ere is an 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 t...

Page 7: ...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 8: ...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 9: ...perate 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 energ...

Page 10: ...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 11: ... display range is 8 39 The display blinks if the temperature is lower than 8 or 39 or higher 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 se...

Page 12: ...e Ref Mode Power supply phase cycle voltage Input Running current External finish Panel Heat exchanger Fan Fan drive No Fan motor output Airflow Low Medium2 Medium1 High External static pressure Booster heater Operation control Thermostat Noise level Low Medium2 Medium1 High Field drain pipe O D Dimensions Weight W D H INDOOR UNIT PLA RP35BA PLA RP35BA1 PLA RP35BAR1 UNIT 840 33 1 16 PANEL 950 37 3...

Page 13: ...m in kg lbs W D H INDOOR UNIT PLA RP100BA Service Ref Mode Power supply phase cycle voltage Input Running current External finish Panel Heat exchanger Fan Fan drive No Fan motor output Airflow Low Medium2 Medium1 High External static pressure Booster heater Operation control Thermostat Noise level Low Medium2 Medium1 High Field drain pipe O D Dimensions Weight UNIT 840 33 1 16 PANEL 950 37 3 8 UNI...

Page 14: ...r Operation control Thermostat Noise level Low Medium2 Medium1 High Field drain pipe O D Dimensions Weight W D H INDOOR UNIT PLA RP140BA Cooling 0 16 1 07 Heating 0 15 1 00 Single phase 50Hz 230V Munsell 6 4Y 8 9 0 4 Plate fin coil Turbo fan direct 1 0 120 24 26 29 32 850 920 1 020 1 130 0 direct blow Remote controller built in 36 39 42 44 32 1 1 4 UNIT 840 33 1 16 PANEL 950 37 3 8 UNIT 840 33 1 1...

Page 15: ...IMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 BAND CENTER FREQUENCIES Hz PLA RP60BA PLA RP60BA1 PLA RP60BAR1 PLA RP71BA PLA RP71BA1 PLA RP71BAR1 NOTCH SPL dB LINE High 32 Medium1 31 Medium2 29 Low 28 NOTCH SPL dB LINE High 34 Medium1 32 Medium2 30 Low 28 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUO...

Page 16: ...E LEVEL dB 0 dB 0 0002 μbar BAND CENTER FREQUENCIES Hz PLA RP140BA NOTCH SPL dB LINE High 44 Medium1 42 Medium2 39 Low 36 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 μbar BAND CENTER FREQUENCIES Hz 90 80 70 60 50 40 30 20 10 63 125 250 500 1000...

Page 17: ...efrigerant pipe 6 35 9 52 Flared connection 1 4F 3 8F compatible PLA RP35 50BA PLA RP60BA PLA RP71BA PLA RP100 125 140BA Detail drawing of fresh air intake hole Detail connecting of branch duct Both aspects 3 2 8 14 2 8 150 100 Emergency operation switch Heating and Emergency Up Down switch Down In case of auto grille PLP 6BAJ Suspension bolt lower edge 170 Corner pocket Ceiling Air intake grille ...

Page 18: ... RELAY DRAIN PUMP SWITCH MODEL SELECTION See table 1 SWITCH CAPACITY CODE See table 2 CONNECTOR EMERGENCY OPERATION FAN MOTOR VANE MOTOR DRAIN PUMP DRAIN FLOAT SWITCH TERMINAL BLOCK Indoor unit Power option TERMINAL BLOCK INDOOR OUTDOOR CONNECTING LINE TERMINAL BLOCK REMOTE CONTROLLER TRANSMISSION LINE REACTOR ROOM TEMP THERMISTOR 0 15kΩ 25 5 4kΩ DETECT PIPE TEMP THERMISTOR LIQUID 0 15kΩ 25 5 4kΩ ...

Page 19: ...RP35BAR1 PLA RP50BAR1 PLA RP60BAR1 PLA RP71BAR1 Thermistor TH2 Pipe temperature Liquid Distributor with strainer 50 Thermistor TH5 Cond Eva temperature Thermistor TH1 Room temperature Refrigerant flow in cooling Refrigerant flow in heating Strainer 50 Strainer 50 Heat exchanger Refrigerant GAS pipe connection Flare Refrigerant LIQUID pipe connection Flare OCH416D ...

Page 20: ...a corrective action according to TROUBLESHOOTING OF PROBLEMS 10 4 The trouble is not reoccurring Logged Not logged Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor poor connection of wiring noise and etc Re check the symptom and check the installation environment refrigerant amount weather when the trouble occurred and wiring rel...

Page 21: ...or error code to appear The check mode is cancelled Procedure 1 Press the CHECK button twice 2 Press the temperature buttons 3 Point the remote controller at the sensor on the indoor unit and press the HOUR button 4 Point the remote controller at the sensor on the indoor unit and press the ON OFF button Malfunction diagnosis method at maintenance service In case of trouble during operation When a ...

Page 22: ...Number of times Wireless remote controller Wired remote controller Beeper sounds OPERATION INDICATOR lamp flashes Check code Number of times Wireless remote controller Wired remote controller 1 P1 Intake sensor error P9 Pipe TH5 sensor error 2 P2 Pipe TH2 sensor error 3 E6 E7 Indoor outdoor unit communication error 4 P4 Float switch connector open 5 P5 PA Drain pump error due to water leakage abno...

Page 23: ...ction device is not connected Reverse or open phase wiring for the outdoor unit s power terminal block L1 L2 L3 Incorrect wiring between indoor and outdoor units incorrect polarity of S1 S2 S3 Remote controller wire short Note Operation is not possible for about 30 seconds after cancellation of function selection Correct operation For description of each LED LED1 2 3 provided on the indoor control...

Page 24: ...refer to P1 above 2 Check contact failure of connector CN44 on the indoor controller board Refer to 10 7 Turn the power on and check restart after inserting connector again 4 Check pipe liquid temperature with remote controller in test run mode If pipe liquid temperature is extremely low in cooling mode or high in heating mode refrigerant circuit may have defective 5 Check pipe liquid temperature ...

Page 25: ... Defective indoor fan motor Fan motor is defective Indoor controller board is defective 5 Defective outdoor fan control 6 Overcharge of refrigerant 7 Defective refrigerant circuit clogs 8 Bypass circuit of outdoor unit is defective Cooling or drying mode 1 Check clogs of the filter 2 Remove blockage 4 Refer to 10 6 5 Check outdoor fan motor 67 Check operating condition of refrigerant circuit Heati...

Page 26: ...units The number of connecting remote controller max 2 units When it is not the above mentioned problem of 1 3 4 Diagnose remote controllers a When RC OK is displayed remote controllers have no problem Turn the power off and on again to check If abnormality generates again replace indoor controller board b When RC NG is displayed Replace remote controller c When RC E3 or ERC 00 06 is displayed noi...

Page 27: ...remote controller 1 Replace remote controller PA Forced compressor stop due to water leakage abnormality 1 The unit has a water leakage abnormality when the following conditions a and b are satisfied while the above mentioned detection is performed a The intake temperature subtracted with liquid pipe temperature detects to be less than 10 for a total of 30 minutes When the drain sensor is detected...

Page 28: ...S1 and S2 When AC 220 240V is not detected check indoor outdoor unit connecting wire for miswiring When AC 220 240V is detected check 4 below 4 Check the fuse on indoor controller board Check the wiring connection If no problem are found indoor controller board is defective When LED1 on indoor controller board is lit 1 Mis setting of refrigerant address for outdoor unit There is no unit correspond...

Page 29: ...ntroller Check indoor outdoor unit connecting wire for connection failure 1 Check the connection of remote controller wires in case of twin triple indoor unit system When 2 or more indoor units are wired in one refrigerant system connect remote controller wires to one of those units 2 Check the setting of refrigerant address in case of grouping control system If there are some units whose refriger...

Page 30: ...when the remote control does not function it is possible to activate emergency operation by using the indoor unit emergency operation switch SW1 SW2 of the wireless signal receiver board However if the indoor unit microprocessor has failed it is necessary to proceed with points 2 and 3 below as in the case of the wired remote controller 2 When you activate emergency operation of the cooling or hea...

Page 31: ...sistance between the terminals with a tester At ambient temperatures of 20 30 Vane motor MV i see sensor motor MT Option Abnormal Open or short Red Yellow Red Blue Red Orange Red White Connector Normal 300 Measure the resistance between the terminals with a tester At ambient temperatures of 20 30 Abnormal Open or short Red Yellow Red Blue Red Orange Red White Connector Normal 250 Normal Do not dis...

Page 32: ...e to the indoor controller circuit board and fan motor Self check Symptom The indoor fan cannot rotate Wiring contact check Contact of fan motor connector CNMF No No NG Power supply check Remove 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...

Page 33: ...k TB4 Indoor outdoor connecting line Between 3 and 5 220 240V AC CN3G Connect to the auto grille controller board CN3G 13V pulse output CNV Vane motor output MV 12V pulse output SWE Emergency operation Jumper wire J41 J42 Pair No setting for wireless remote controller FUSE 6 3A 250V CNAC Connect to the auto grille controller board CN3A 220 240 VAC CNMF Fan motor 1 4 DC 310 340V 5 4 DC15V VSP Volta...

Page 34: ...in the table indicates the jumper wire is disco nnected There is no jumper JP1 because these models have the cond eva temperature thermistor TH5 Marks in the table below Jumper wire Short Open Without TH5 With TH5 Model JP1 Factory shipment Service parts Indoor controller board type JP3 1 2 3 4 5 ON OFF MODEL Manufacture Service PLA RP BA Manufacture Service PLA RP35BA MODELS ON OFF 1 2 3 4 5 Manu...

Page 35: ...Electric Box of the decorative panel You can set up 8 different stages of lowering distance for the air intake grille according to the set up location if desired As a factory default the decorative panel will automatically stop at 1 6 m from the ceiling level The distance is a rough indication check by actually lowering it 1 Take the cover off the electric box of the decorative panel 2 screws 2 Se...

Page 36: ...jury or a failure Warning F1 F2 F3 F4 F1 F2 F3 F4 All Auto descending panel Auto descending panel Input display All Cur Address Check Down Up Cur Address Check Down Up Ref address Unit No Operation Keep clear panel descending Press Check for Unit No Ref address Unit No Operation Panel will stop in 30 sec Keep clear panel descending F1 F2 F3 F4 Maintenance menu Main menu Cursor Auto descending pane...

Page 37: ...8 m 3 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 may stop rising but it will not stop immediately Stand by for raising display Raising display blinking Sto...

Page 38: ...nt address No can be changed by using the TEMP buttons when the panel displays a or b N 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 N ...

Page 39: ...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 40: ...witch 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 11 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 DETECT...

Page 41: ...le There is something on the air intake grille Filter is not properly installed Air intake grille is not hung with all 4 hooks The air intake grille has finished lowering to the auto stop position This is the noise made when the wire is wound and unwound This is the operational noise for putting the air intake grille into place This is the operation for putting the air intake grille into place The...

Page 42: ...elay connector of reactor 4 Remove 2 reactor fixing screws and remove the reactor 4 Removing the indoor controller board I 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 TH2 TH5 CNP Blue 3P for drain pump CN4F White 4P for float switch CN01 Black 5P...

Page 43: ... Remove 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 pr...

Page 44: ...at 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 Photo 10 Photo 8 Drain pump Hose band Float switch Drain pump assembly fixing screw Photo 9 Drain pump fixing screw Float switch fixing screw Coi...

Page 45: ...45 45 OCH416D ...

Page 46: ...12 No OCH416 REVISED EDITION D Distributed in Feb 2012 No OCH416 REVISED EDITION C Distributed in Oct 2009 No OCH416 REVISED EDITION B PDF 7 Distributed in Nov 2007 No OCH416 REVISED EDITION A PDF 8 Distributed in Apr 2007 No OCH416 PDF 8 Made in Japan New publication effective Sep 2012 Specifications are subject to change without notice TM ...

Page 47: ...Related Links Model Number PLA RP60BAR1 PLA RP35 140BA_Parts_Catalog_ OCB416C PLA RP35 140BA_Service_Manual_ OCH416D ...

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