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Function buttons

F2 F3 F4

Press to turn ON/OFF the indoor unit.

ON / OFF button

When the backlight is off, pressing any button turns

the backlight on and does not perform its function.

(except for the

(ON / OFF) button)

The functions of the function buttons change depending on

the screen. Refer to the button function guide that appears

at the bottom of the LCD for the functions they serve on a

given screen.

When the system is centrally controlled, the button function

guide that corresponds to the locked button will not appear.

Press to save the setting.

SELECT button

Press to return to the previous screen.

RETURN button

Press to bring up the Main menu.

MENU button

Operation settings will appear.

When the backlight is off, pressing any button turns the

backlight on and it will stay lit for a certain period of time

depending on the screen.

Backlit LCD

This lamp lights up in green while the unit is in operation.

It blinks while the remote controller is starting up or when

there 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 to go to the next page.

Function button F4

Fri

Room

Set temp.

Mode

Temp.

Fan

Cool

Auto

Main

Main display:

Cursor

Page

Main menu

Vane·Louver·Vent. (Lossnay)

High power

Timer

Weekly timer

OU silent mode

<Main display>

<Main menu>

Function guide

3-4. WIRED REMOTE CONTROLLER <PAR-31MAA> (Option)

The functions which can be used are restricted according to each model.

: Supported : Unsupported

Function

PAR-31MAA

PAR-21MAA

Body

Product size H × W × D (mm)

120 × 120 × 19

120 × 130 × 19

LCD

Full Dot LCD

Partial Dot LCD

Backlight

Energy-saving

Energy-saving operation schedule
Automatic return to the preset temperature

Restriction

Setting the temperature range restriction

Function

Operation lock function
Weekly timer
On / Off timer

Wired remote controller function

OCH551A

Содержание Mr.Slim PLY-P18BA.TH

Страница 1: ...F TEMP ON OFF TEMP PARTS CATALOG OCB551 No OCH551 REVISED EDITION A Note This manual describes ser vice data of the indoor units only RoHS compliant products have G mark on the spec name plate INDOOR UNIT Model name indication Series PLY Indoor unit Model Name PLY P18BA PLY P24BA PLY P30BA PLY P36BA PLY P42BA PLY P48BA Service Ref PLY P18BA TH PLY P24BA TH PLY P30BA TH PLY P36BA TH PLY P42BA TH PL...

Страница 2: ...ICE MANUAL 1 2 TECHNICAL DATA BOOK Service Ref Service Manual No SUY KA18 24 30 36VA TH OCH552 OCB552 PUY P42 48VKA TH T PUY P42 48YKA TH T OCH558 OCB558 Series Outdoor unit Data Book No SUY KA VA TH OCS27 PUY P VKA TH PUY P YKA TH OCS29 OCH551A ...

Страница 3: ...erio 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 flame poisonous gases will be released Make...

Страница 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 ...

Страница 5: ...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 set...

Страница 6: ...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...

Страница 7: ...rting up or when there 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 spee...

Страница 8: ...on guide Appears when the 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 lo...

Страница 9: ...ane Louver 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 Check Self check Maintenance password Remote controller check Test...

Страница 10: ...ter 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 energy save operation patterns can be se...

Страница 11: ...tenance 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 only when the operation ...

Страница 12: ...d drain pipe O D Dimensions Weight UNIT 840 PANEL 950 UNIT 840 PANEL 950 UNIT 258 PANEL 35 UNIT 19 PANEL 6 INDOOR UNIT kW A kW K min Pa kW dB A mm mm mm mm kg W D H Service Ref Mode Power supply phase cycle voltage Input Running current External finish Panel Heat exchanger Fan Fan drive o No Fan motor output Airflow Low Medium2 Medium1 High External static pressure Booster heater Operation control...

Страница 13: ...pe O D Dimensions Weight UNIT 840 PANEL 950 UNIT 840 PANEL 950 UNIT 298 PANEL 35 UNIT 24 PANEL 6 Cooling 0 16 1 07 Single phase 50Hz 220 240V Single phase 60Hz 220V Munsell 6 4Y 8 9 0 4 Plate fin coil Turbo fan direct o 1 0 120 24 26 29 32 0 direct blow Remote controller built in 37 39 41 44 32 kW A kW K min Pa kW dB A mm mm mm mm kg W D H INDOOR UNIT PLY P36 42 48BA TH Service Ref Mode Power supp...

Страница 14: ...60 NC 50 NC 40 NC 30 NC 20 NC 70 BAND CENTER FREQUENCIES Hz OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 μbar PLY P30BA TH NOTCH SPL dB LINE High 41 Medium1 38 Medium2 35 Low 33 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 FR...

Страница 15: ...ared connection 1 2 F Refrigerant pipe 15 88 Flared connection 5 8 F PLY P18BA TH PLY P24BA TH PLY P30BA TH PLY P36BA TH 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 Fan mode and Emergency Up Down switch Down In case of auto grille PLP 6BAJ Suspension bolt lower edge 170 w Corner pocket PLY P42BA TH PLY P48BA ...

Страница 16: ...lay For Check Codes and Symptoms refer to the table below W B RU BZ LED1 SW1 SW2 OPTION PART PCB FOR WIRELESS REMOTE CONTROLLER RECEIVING UNIT BUZZER LED OPERATION INDICATION GREEN EMERGENCY OPERATION FAN DOWN EMERGENCY OPERATION COOL UP w Be sure to turn off the source power and then disconnect fan motor connector Failure to do so will cause trouble in fan motor 2 1 1 1 2 3 5 1 4 1 1 2 3 4 5 6 7 ...

Страница 17: ... Thermistor TH5 Cond Eva temperature Thermistor TH1 Room temperature Refrigerant flow in cooling Strainer 50 Strainer 50 Heat exchanger Refrigerant GAS pipe connection Flare Refrigerant LIQUID pipe connection Flare PLY P18BA TH PLY P24BA TH PLY P30BA TH PLY P36BA TH PLY P42BA TH PLY P48BA TH OCH551A ...

Страница 18: ...corrective action according to 9 3 TROUBLESHOOTING OF PROBLEMS The trouble is not reoccurring Logged Not logged 1Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor poor connection of wiring noise etc Re check the symptom and check the installation environment refrigerant amount weather when the trouble occurred and wiring related 2...

Страница 19: ...during operation When a malfunction occurs to air conditioner both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop ON OFF TEMP FAN VANE MODE CHECK LOUVER TEST RUN AUTO STOP AUTO START h min RESET SET CLOCK CHECK CHECK display Temperature button CHECK button Refrigerant address display HOUR button ON OFF button To be continued to the next page Malfunction dia...

Страница 20: ...open 5 P5 PA Drain pump error due to water leakage abnormality Forced compressor stop 6 P6 Freezing protection operation 7 EE Communication error between indoor and outdoor units 8 P8 Pipe temperature error 9 E4 E5 Remote controller signal receiving error 10 11 Errors detected by unit other than indoor unit outdoor unit etc Symptom Remark 1 Indoor outdoor unit communication error 2 Transmitting er...

Страница 21: ...ossible due to system start up Correct operation Connector for the outdoor unit s protection 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 selectio...

Страница 22: ...wer on and check restart after inserting connec tor again 4 Check pipe liquid temperature with remote controller in test run mode If pipe liquid temperature is extremely low in cooling mode refrigerant circuit may have defective 5 Check pipe liquid temperature with remote controller in test run mode If there is extremely difference with actual pipe liquid tempera ture replace indoor controller boa...

Страница 23: ...ture 1 4 Check pipe liquid or condenser evaporator temperature with room temperature display on remote controller and outdoor controller circuit board Pipe liquid or condenser evaporator temperature display is indicated by setting SW2 of outdoor controller circuit board as follows 23Check converse connection of extension pipe or converse wiring of indoor outdoor unit connecting wire Conduct temper...

Страница 24: ...ly one indoor unit 3 The address changes to a separate setting 4 6 Diagnose remote controller a When RC OK is displayed remote controllers have no problem Turn the power off and on again to check When becoming abnormal again replace indoor controller board b When RC NG is displayed replace remote controller c When RC E3 or ERC 00 66 is displayed noise may be causing abnormality 1 Contact failure a...

Страница 25: ...ble 2 Drain defective Drain pump clogging Drain pipe clogging 3 Open circuit of float switch 4 Contact failure of float switch connector 5 Dew condensation on float switch Drain water descends along lead wire Drain water waving due to filter clogging 6 Extension piping connection difference at twin triple quadruple system 7 Miswiring of indoor outdoor connecting at twin triple quadruple system 8 R...

Страница 26: ...block S1 and S2 When AC 220 to 240V is not detected check indoor outdoor unit connecting wire for miswiring When AC 220 to 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 uni...

Страница 27: ...te 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 refrigerant addresses are 0 in one group set one of the units to 0 using SW1 3 6 on outdoor controller circuit b...

Страница 28: ...work properly if you set the switch SWE on the indoor controller board ON the indoor unit will begin emergency operation When emergency operation is activated the indoor unit operates as follows 1 Indoor fan is running at high speed 2 Drain pump is operating Note on the wireless remote control when the remote control does not function it is possible to activate emergency operation by using the ind...

Страница 29: ...ane motor MV i see sensor motor MT Option Abnormal Open or short Red Yellow 5 3 0 8 5 3 8 Red Blue 5 1 0 6 5 1 6 Red Orange 5 4 0 9 5 4 9 Red White 5 2 0 7 5 2 7 Connector Normal 300 Measure the resistance between the terminals with a tester At ambient temperatures of 20 to 30 Abnormal Open or short Red Yellow Red Blue Red Orange Red White Connector Normal 250 Normal Do not disassemble corner pane...

Страница 30: ...to the indoor controller circuit board and fan motor Self check Symptom The indoor fan cannot rotate 1 2 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 1 VDC between 1 and 4 of the fan connector VDC DC 310 340 V TEST POINT 2 VCC between 5 and 4 of the fan connector ...

Страница 31: ... 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 Voltage between pins of C626 DC0V FAN stop DC1 6 5V FAN o...

Страница 32: ...eless remote controller and indoor control PCB J41 J42 are given in the table on the left in the table indicates the jumper wire is disco nnected Marks in the table below Jumper wire Short Open 1 2 3 4 5 ON OFF MODEL Manufacture Service PLA RP BA Manufacture Service PLY P18BA MODEL ON OFF 1 2 3 4 5 PLY P30BA ON OFF 1 2 3 4 5 PLY P24BA ON OFF 1 2 3 4 5 PLY P36BA ON OFF 1 2 3 4 5 The black square in...

Страница 33: ...x 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 Note that as an initial setting 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...

Страница 34: ...use an injury or a failure Warning F1 F2 F3 F4 Auto descending panel Input display All Cur Address Check Down Up Ref address Unit No Operation Keep clear Panel descending Press Check for Unit No F1 F2 F3 F4 All Auto descending panel Down Up 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 panel Manual ...

Страница 35: ...se 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 Stopped display when the air int...

Страница 36: ...igerant 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...

Страница 37: ...when the 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 2 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 3 Obstacle detection Case Making contact with something ...

Страница 38: ...witch fan mode 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...

Страница 39: ... 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 speeds of ...

Страница 40: ...ical 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 TB4 CNV White 20P for vane motor CN22 Blue 2P for TB5 4 Remove the 6 supports from indoor controller board 5 Remove the indoor controller board 4 Removing the electrical box 1 Remove the air intake grille a...

Страница 41: ...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 7 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 See Photo 1 3 Disconnect the connectors Refer to 3 4 Remove the panel See Photo ...

Страница 42: ...hin copper pipe Photo 7 Wiring clamps Coil plate PLY P18BA TH PLY P24BA TH Coil plate fixing screws Pipe temp thermistor luquid TH2 Cond eva temp thermistor TH5 PLY P30BA TH PLY P36 42 48BA TH Pipe temp thermistor liquid TH2 Set TH5 on the white mark The third one from the drain pan side Set TH5 on the white mark The ninth one from the drain pan side Cond eva temp thermistor TH5 Pipe temp thermist...

Страница 43: ...ch fixing screw 10 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 Photo 17 Coil support fixing screw Heat exchanger fixing screw Coil support Heat exchanger Coil plate Piping co...

Страница 44: ...YO 100 8310 JAPAN CCopyright 2013 MITSUBISHI ELECTRIC CORPORATION Distributed in Apr 2014 No OCH551 REVISED EDITION A Distributed in Oct 2013 No OCH551 Made in Japan New publication effective Apr 2014 Specifications are subject to change without notice TM ...

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