Mitsubishi Mr.Slim PCA-RP125HAQ Service Manual Download Page 9

9

Caution:

 Only the Power on indicator lights when the unit is stopped and power supplied to the unit.
 If you press a button for a feature that is not installed at the indoor unit, the remote controller will display the “Not Available” 

message.
If you are using the remote controller to drive multiple indoor units, this message will appear only if the feature is not present 
at every unit connected.

 When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature indication (For 

max. 2 minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.

3-3. WIRED

 

REMOTE CONTROLLER (OPTION) <PAR-21MAA>

°F°C

°F°C

ERROR CODE

AFTER

TIMER

TIME SUN MON TUE WED THU FRI SAT

ON
OFF

Hr
AFTER

FILTER

FUNCTION

ONLY1Hr.

WEEKLY

SIMPLE

AUTO OFF

PAR-21MAA

ON/OFF 

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

MENU

BACK

DAY

MONITOR/SET

CLOCK

ON/OFF

Display Section

For the  purposes of explanation,
all parts of the display are shown.

During actual operation, only

the relevant items will be lit.

Identifies the current operation

 Shows the operating mode, etc.

 Multilanguage display is available.

“Centrally Controlled” indicator

Indicates that operation from the 

remote controller has been prohib-

ited by a master controller.

“Timer is Off” indicator

Indicates that the timer 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

Displays when the remote controller

sensor is used.

“Locked” indicator

Indicates that remote controller but-

tons have been locked.

“Clean The Filter” indicator

To be displayed on when it is time to 

clean the filter.

Timer indicators

The indicator comes on if the corre-

sponding timer is set.

Up/Down Air Direction indica-

tor

The indicator  shows the direc-

tion of the outcoming airflow.

“One Hour Only” indicator

Room Temperature display

Shows the room temperature. The room

temperature display range is 8 to 39°C.

The display blinks if the temperature

is less than 8°C or 39°C 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 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

cover

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

(     Operation button)

To go to next operation

number

Built-in temperature sensor

Displays if the airflow is set to

low or downward during COOL

or DRY mode. (Operation varies

according to model.)

The indicator goes off in 1 hour,

when the airflow direction 

also changes.

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

OCH492A

Summary of Contents for Mr.Slim PCA-RP125HAQ

Page 1: ...REFRIGERANT SYSTEM DIAGRAM 15 9 TROUBLESHOOTING 16 10 SPECIAL FUNCTION 27 11 DISASSEMBLY PROCEDURE 32 ON OFF TEMP July 2014 Model name indication Indoor unit Model Name PCA RP71HAQ PCA RP125HAQ PARTS...

Page 2: ...140 250YKA OCH451 OCB451 PU H P71VHAR3 PU H P71 125 140YHAR3 PU H P71VHAR3 UK PU H P71 125 140YHAR3 UK OC379 PUHZ P125 140VHA3R2 PUHZ P125 140YHAR1 PUHZ P125 140VHA3R2 UK PUHZ P125 140YHAR1 UK OCH415...

Page 3: ...se a refrigerant other than R407C If another refrigerant R22 etc is used the chlorine in the refrigerant may cause the lubricant deterioration Use a vacuum pump with a reverse flow check valve The vac...

Page 4: ...erant Gravimeter Unit 1 Cautions for service After recovering the all refrigerant in the unit proceed to working Do not release refrigerant in the air After completing the repair service recharge the...

Page 5: ...ntamination inside refrigerant piping can cause deterio ration of refrigerant oil etc If dirt dust or moisture enter into refrigerant cycle that can cause deterioration of refrigerant oil or malfuncti...

Page 6: ...ls for R410A refrigerant Gravimeter Unit 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...

Page 7: ...he Installation Manual All icons are displayed for explanation 5 6 1 2 3 4 Press to turn ON OFF the indoor unit 1 ON OFF button This lamp lights up in green while the unit is in operation It blinks wh...

Page 8: ...gistered in advance to be displayed Maintenance Auto descending panel Auto descending panel Optional parts Up Down you can do Manual vane angle Use to set the vane angle for each vane to a fixed posit...

Page 9: ...et If the simple or Auto Off timer is set the time to be switched off is shown Sensor indication Displays when the remote controller sensor is used Locked indicator Indicates that remote controller bu...

Page 10: ...8 1 060 1 350 0 direct blow Remote controller built in 44 50 26 1 1 520 59 7 8 650 25 5 8 280 11 56 124 Cooling 0 09 0 43 0 86 Heating 0 09 0 43 0 86 Single phase 50Hz 230V Stainless steel Plate fin c...

Page 11: ...QUENCIES Hz PCA RP71HAQ PCA RP71HAQ ER NOTCH High Low SPL dB 38 34 LINE 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...

Page 12: ...owing clearances gas liquid Suspension bolt 130 210 45 165 120 1224 1180 75 1136 986 1098 70 243 254 175 197 110 21 130 15 258 110 102 320 80 90 140 18 75 70 90 650 13 289 75 280 495 43 295 2 2 2 2 0...

Page 13: ...90 650 300 100 1520 100 Electrical box 500 250 2 3 gas liquid Suspension bolt 70 243 254 175 197 110 21 130 15 258 1482 110 102 1370 75 1608 320 80 1564 1520 90 120 140 18 75 70 90 650 13 289 75 280 4...

Page 14: ...For power supply system of this unit refer to the caution label located near this diagram 7 1 3 5 LED3 LED2 LED1 t t t The black square indicates a switch position S1 S2 S3 S1 S2 S3 S1 S2 S3 S1 S2 1 2...

Page 15: ...rainer 50 Condenser evaporator temperature thermistor TH5 Room temperature thermistor TH1 Refrigerant flow in cooling Refrigerant flow in heating Strainer 50 Strainer 50 Heat exchanger Refrigerant GAS...

Page 16: ...t troubleshooting and ascertain the cause of the trouble according to 9 3 TROUBLESHOOTING BY INFERIOR PHENOMENA The trouble is not reoccurring Logged Not logged 1Consider the temporary defects such as...

Page 17: ...rmal if the unit does not reset normally after 3 min utes The unit returns to normal opera tion if it has been reset normally 2 Constantly detected during cooling drying and heating operation Short 90...

Page 18: ...otor is defective Indoor controller board is defec tive 5 Defective outdoor fan control 6 Overcharge of refrigerant 7 Defective refrigerant circuit clogs 8 Bypass circuit of outdoor unit is defective...

Page 19: ...g remote control ler 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...

Page 20: ...short circuit or miswiring converse wiring of indoor outdoor unit connecting wire 2 Defective transmitting receiving circuit of indoor controller board 3 Defective transmitting receiving circuit of i...

Page 21: ...tion between indoor controller board and indoor power board Check the fuse on indoor controller board If no problems are found indoor controller board is defective When LED1 on indoor controller board...

Page 22: ...izontal regardless of remote control 2 Check 2 left Check the vane motor Refer to How to check the parts Check for breaking of wire or connec tion failure of connector Check Up down vane setting Unit...

Page 23: ...with a tester At the ambient temperature 10 to 30 Refer to the Thermistor Characteristic Graph below Room temperature thermistor TH1 Pipe temperature thermistor liquid TH2 Condenser evaporator temper...

Page 24: ...9 6 1 Power board PCA RP71HAQ PCA RP125HAQ PCA RP71HAQ ER CNSK Connect to the indoor controller board CNDK Between 1 to 3 220 240 V AC CN2S Connect to the indoor controller board CN2D Between 1 to 3 1...

Page 25: ...al 13 V pulse input 1 3 4 Operation indicator 13 V DC 3 3 5 Malfunction indicator 13 V DC 3 CN6V Vane motor output MV CN105 CN90 Connect to the wire less remote controller board CNB CN31 Drain sensor...

Page 26: ...ft in the table indicates the jumper line 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 With...

Page 27: ...ding to the interval of rotation setting Main and sub unit should be set by refrigerant address Outdoor DIP switch setting Refrigerant address 00 Main unit Refrigerant address 01 Sub unit When an erro...

Page 28: ...val 1day and back up function No 5 314 Rotation ON Alternating interval 3day and back up function No 6 315 Rotation ON Alternating interval 5day and back up function No 7 316 Rotation ON Alternating i...

Page 29: ...en D when Maintenance monitor is activated The display D now allows you to set a request code No 4 Press the TEMP and buttons 4 to select the desired refrigerant address 5 Press the CLOCK and buttons...

Page 30: ...button and press the button Set the Refrigerant address and Request code Select the item to be changed with the F1 or F2 button Select the required setting with the F3 or F4 button Select the required...

Page 31: ...tton Select the required setting with the F3 or F4 button Press the F3 or F4 button to set the Refrigerant address 0 Press the F3 or F4 button to set the desired request code No Rotation Back up opera...

Page 32: ...sen the screw for control box cover to remove the control box cover See Photo 2 3 Remove the lead wire from the 2 clips 4 Remove the 2 white cord heater relay connectors 1P o 2 and 2 fan motor relay c...

Page 33: ...connectors 6P in the control box See Photo 3 4 Remove the 3 filter rails See Photo 1 4 5 Remove the fan guard See Photo 5 6 Remove the lower casing See Photo 6 7 Remove the green earth wire from the...

Page 34: ...n and remove the drain pan Note Remove the drain pan carefully since the drain could remain in it 7 Removing the under panel 1 Remove the oil filter See Figure 1 2 Remove the 3 filter rails See Photo...

Page 35: ...der panel See Photo 11 4 Remove the drain pan See Photo 12 5 Remove the 2 screws 4 10 for pipe cover and remove the pipe cover See Photo 15 6 Remove the 3 screws 4 10 left 2 right 1 for heat exchanger...

Page 36: ...KYO 100 8310 JAPAN CCopyright 2010 MITSUBISHI ELECTRIC CORPORATION Distributed in Jul 2014 No OCH492 REVISED EDITION A Distributed in Dec 2010 No OCH492 Made in Japan New publication effective Jul 201...

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