SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS SPLIT-TYPE, AIR CONDITIONERS July 2006 No. OC335 REVISED EDITION-A SERVICE MANUAL Indoor unit [Model names] [Service Ref.] PLA-RP35AA.UK Revision: PLA-RP35AA • RoHS PARTS LIST is added. PLA-RP50AA.UK • Some descriptions have PLA-RP50AA been modified. PLA-RP60AA.UK PLA-RP60AA PLA-RP71AA.UK...
REFERENCE MANUAL 1-1. OUTDOOR UNIT’S SERVICE MANUAL Service Manual No. Service Ref. PUHZ-RP35/50/60/71/100/125/140VHA OC334 PUHZ-RP100/125/140YHA PUHZ-RP200/250YHA OC338 PU(H)-P·VGAA.UK OC336 PU(H)-P·YGAA.UK SUZ-KA·VA.TH OC322 PUHZ-RP35/50/60/71/100/125/140VHA2 OC374 PUHZ-RP100/125/140/YHA2 PU(H)-P71/100VHA.UK OC379 PU(H)-P71/100/125/140YHA.UK PUHZ-P100/125/140VHA.UK OC359 SUZ-KA50/60/71VA.TH OC322 1-2. TECHNICAL DATA BOOK Manual No. Series (Outdoor unit) PUHZ-RP·VHA(-A) OCS01 PUHZ-RP·YHA(-A)
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[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 cycle with the specified amount of liquid refrigerant. [2] Refrigerant recharging (1) Refrigerant recharging process 1Direct charging from the cylinder.
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CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilising refrigerant R410A Use new refrigerant pipes. Do not use refrigerant other than R410A. In case of using the existing pipes for R22, be careful with If other refrigerant (R22 etc.) is used, chlorine in refrige- the followings.
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Unit Gravimeter [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. Specifications Gauge manifold ·Only for R410A ·Use the existing fitting specifications . (UNF1/2) ·Use high-tension side pressure of 5.3MPa·G or over. Charge hose ·Only for R410A ·Use pressure performance of 5.09MPa·G or over.
PART NAMES AND FUNCTIONS Indoor Unit Filter Removes dust and pollutants from intake air Horizontal Air Outlet Sets airflow of horizontal automatically during cooling or dehumidifying. Grille Auto Air Swing Vane Disperses airflow up and down and adjusts the angle of airflow direction.
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Display “Sensor” indication Displayed when the remote controller sensor is used. Day-of-Week For purposes of this explanation, Shows the current day of the week. all parts of the display are shown as lit. During actual operation, only Time/Timer Display the relevant items will be lit. “Locked”...
Wireless remote controller display CHECK TEST RUN CHECK&TEST RUN display indicates that the unit is being checked or test-run. display MODEL SELECT Blinks when model is selected. display Lights up while transmission to the indoor unit is mode using switches. display SET TEMP.
SPECIFICATIONS Service Ref. PLA-RP35AA.UK Mode Cooling Heating Power supply(phase, cycle, voltage) Single phase, 50Hz, 230V Input 0.16 0.16 Running current 0.79 0.79 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger Plate fin coil Fan(drive) o No. Turbo fan (direct) o 1 Fan motor output 0.070...
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Service Ref. PLA-RP71AA.UK Mode Cooling Heating Power supply(phase, cycle, voltage) Single phase, 50Hz, 230V Input 0.16 0.16 Running current 0.79 0.79 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger Plate fin coil Fan(drive) o No. Turbo fan (direct) o 1 Fan motor output 0.070 Airflow(Low-Medium2-Medium1-High)
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Service Ref. PLA-RP140AA.UK Mode Cooling Heating Power supply(phase, cycle, voltage) Single phase, 50Hz, 230V Input 0.33 0.33 Running current 1.64 1.64 Starting current External finish (Panel) Munsell 0.70Y 8.59/0.97 Heat exchanger Plate fin coil Turbo fan (direct) o 1 Fan(drive) x No. Fan motor output 0.120 Airflow(Low-Medium2-Medium1-High)
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Service Ref. PLH-P60AAH.UK Mode Cooling Heating Power supply(phase, cycle, voltage) Single phase, 50Hz, 230V Input 0.16 0.16<1.93> Running current 0.79 0.79<8.39> Starting current 1.0<8.39> External finish Munsell 0.70Y 8.59/0.97 Heat exchanger Plate fin coil Fan(drive) o No. Turbo fan (direct) o 1 Fan motor output 0.070 Airflow(Low-Medium2-Medium1-High)
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Service Ref. PLH-P125AAH.UK Mode Cooling Heating Power supply(phase, cycle, voltage) Single phase, 50Hz, 230V Input 0.33 0.33<2.76> Running current 1.64 1.64<12.00> Starting current 2.0<12.00> External finish Munsell 0.70Y 8.59/0.97 Heat exchanger Plate fin coil Fan(drive) o No. Turbo fan (direct) o 1 Fan motor output 0.120 Airflow(Low-Medium2-Medium1-High)
WIRING DIAGRAM PLA-RP35AA.UK PLA-RP50AA.UK PLA-RP60AA.UK PLA-RP71AA.UK PLA-RP100AA.UK PLA-RP125AA.UK PLA-RP140AA.UK PLH-P35AAH.UK PLH-P50AAH.UK PLH-P60AAH.UK PLH-P71AAH.UK PLH-P100AAH.UK PLH-P125AAH.UK PLH-P140AAH.UK [LEGEND] SYMBOL NAME SYMBOL NAME SYMBOL NAME INDOOR POWER BOARD FAN MOTOR WIRELESS REMOTE CONTROLLER BOARD INDOOR CONTROLLER BOARD VANE MOTOR RECEIVING UNIT FUSE FUSE(T6.3AL250V)
TROUBLESHOOTING 9-1. TROUBLESHOOTING <Error code display by self-diagnosis and actions to be taken for service (summary)> Present and past error codes are logged and displayed on the wired remote controller or controller board of outdoor unit. Actions to be taken for service and the inferior phenomenon reoccurrence at field are summarized in the table below. Check the contents below before investigating details.
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9-2. MALFUNCTION-DIAGNOSIS METHOD BY REMOTE CONTROLLER <In case of trouble 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. < Malfunction-diagnosis method at maintenance service> [Procedure] 1.
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• Refer to the following tables for details on the check codes. [Output pattern A] Beeper sounds Beep Beep Beep Beep Beep Beep Beep OPERATION · · · Repeated INDICATOR lamp flash pattern Approx. 2.5 sec. 0.5 sec. 0.5 sec. 0.5 sec.
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• On wireless remote controller 2The continuous buzzer sounds from receiving section of indoor unit. 3Blink of operation lamp • On wired remote controller 1Check code displayed in the LCD. • If the unit cannot be operated properly after the above test run has been performed, refer to the following table to remove the cause. Symptom Cause Wired remote controller...
Note: Refer to the manual of outdoor unit for the details of display 9-3. SELF-DIAGNOSIS ACTION TABLE such as F, U, and other E. Error Code Meaning of error code and detection method Countermeasure Cause Abnormality of room temperature 1 Defective thermistor 1–3 Check resistance value of thermistor.
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Error Code Meaning of error code and detection method Countermeasure Cause Freezing/overheating protection is (Cooling or drying mode) (Cooling or drying mode) working 1 Clogged filter (reduced airflow) 1 Check clogs of the filter. 1 Freezing protection (Cooling mode) 2 Short cycle of air path 2 Remove shields.
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Error Code Meaning of error code and detection method Countermeasure Cause Abnormality of pipe temperature ther- 1 Defective thermistor 1–3 Check resistance value of thermistor. mistor / Condenser-Evaporator (TH5) For characteristics, refer to (P1) above. characteristics 2 Check contact failure of connector (CN29) 1 The unit is in three-minute resume pro- 2 Contact failure of connector on the indoor controller board.
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Error Code Meaning of error code and detection method Countermeasure Cause ∗ Check LED display on the outdoor control cir- Indoor/outdoor unit communication 1 Contact failure, short circuit or, error (Signal receiving error) cuit board. (Connect A-control service tool, mis-wiring (converse wiring) of 1 Abnormal if indoor controller board PAC-SK52ST.) indoor/outdoor unit connecting...
9-4. TROUBLESHOOTING BY INFERIOR PHENOMENA Note: Refer to the manual of outdoor unit for the detail of remote controller. Phenomena Cause Countermeasure (1)LED2 on indoor controller board • When LED1 on indoor controller board is also off. 1 Power supply of rated voltage is not supplied to out- 1 Check the voltage of outdoor power is off.
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Note: Refer to the manual of outdoor unit for the detail of remote controller. Phenomena Cause Countermeasure (2)LED2 on indoor controller board • When LED1 on indoor controller board is also blinking. Check indoor/outdoor unit connecting wire Connection failure of indoor/outdoor unit connecting for connection failure.
9-5. EMERGENCY OPERATION 9-5-1. When wireless remote controller troubles or its battery is exhausted 1. Emergency operation is available in such a case using emergency operation switch equipped next to the receiver of indoor unit. 2. To start operation • Cooling Operation·······Press (Cooling) switch.
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9-6. HOW TO CHECK THE PARTS PLA-RP35AA.UK PLA-RP50AA.UK PLA-RP60AA.UK PLA-RP71AA.UK PLA-RP100AA.UK PLA-RP125AA.UK PLA-RP140AA.UK PLH-P35AAH.UK PLH-P50AAH.UK PLH-P60AAH.UK PLH-P71AAH.UK PLH-P100AAH.UK PLH-P125AAH.UK PLH-P140AAH.UK Parts name Check points Room temperature Disconnect the connector then measure the resistance using a tester. thermistor (TH1) (Surrounding temperature 10:~30:)
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<Thermistor Characteristic graph> Room temperature thermistor(TH1) Thermistor for < Thermistor for lower temperature > Pipe temperature thermistor/liquid(TH2) lower temperature Condenser/evaporator temperature thermistor(TH5) Thermistor R =15k' ± 3% Fixed number of B=3480 ± 2% Rt=15exp { 3480( 273+t 15k' 9.6k' 6.3k' 5.4k' 4.3k' 3.0k'...
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9-7.TEST POINT DIAGRAM 9-7-1. Power board PLA-RP35AA.UK PLA-RP50AA.UK PLA-RP60AA.UK PLA-RP71AA.UK PLA-RP100AA.UK PLA-RP125AA.UK PLA-RP140AA.UK PLH-P35AAH.UK PLH-P50AAH.UK PLH-P60AAH.UK PLH-P71AAH.UK PLH-P100AAH.UK PLH-P125AAH.UK PLH-P140AAH.UK CN2S Connect to the indoor controller board (CN2D) Between 1 1 to 3 3 12.6-13.7V DC (Pin1 1 (+)) CNSK...
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9-7-2. Indoor controller board PLA-RP35AA.UK PLA-RP50AA.UK PLA-RP60AA.UK PLA-RP71AA.UK PLA-RP100AA.UK PLA-RP125AA.UK PLA-RP140AA.UK PLH-P35AAH.UK PLH-P50AAH.UK PLH-P60AAH.UK PLH-P71AAH.UK PLH-P100AAH.UK PLH-P125AAH.UK PLH-P140AAH.UK CN2D LED1 LED2 LED3 Connect to the indoor Power supply (I.B) Power supply (R.B) Transmission CN3C power board (CN2S) (Indoor/outdoor) Transmission (12.5~13.7V DC)
DISASSEMBLY PROCEDURE PLA-RP35AA.UK PLA-RP50AA.UK PLA-RP60AA.UK PLA-RP71AA.UK PLA-RP100AA.UK PLA-RP125AA.UK PLA-RP140AA.UK PLH-P35AAH.UK PLH-P50AAH.UK PLH-P60AAH.UK PLH-P71AAH.UK Be careful on removing heavy parts. PLH-P100AAH.UK PLH-P125AAH.UK PLH-P140AAH.UK OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 1. Removing the air intake grille Figure 1 1 to (1) Slide the knob of air intake grille toward the arrow open the air intake grille.
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OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 5. Remove the fan motor Photo 4 (1) Remove the fan guard.(See photo 1) Fan motor (2) Remove the bell mouth.(See photo 2) (3) Remove the electrical box.(See photo 3) (4) Remove the turbo fan nut. (5) Pull out the turbo fan.
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OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 9. Removing the drain pump and drain sensor Photo 8 (1) Remove the panel. (See photo 6) (2) Remove the fan guard. (See photo 1) (3) Remove the bell mouth. (See photo 2) (4) Remove the electrical box. (See photo 3) (5) Remove the drain pan.
PARTS LIST (non-RoHS compliant) PANEL PARTS PLA-RP35AA.UK PLH-P35AAH.UK PLA-RP50AA.UK PLH-P50AAH.UK PLA-RP60AA.UK PLH-P60AAH.UK GEAR PLA-RP71AA.UK PLH-P71AAH.UK PLA-RP100AA.UK PLH-P100AAH.UK GEAR PLA-RP125AA.UK PLH-P125AAH.UK (VANE) PLA-RP140AA.UK PLH-P140AAH.UK VANE BUSH STEPPING MOTOR RECEIVER CHECK TEST RUN MODEL SELECT ˚C AMPM AMPM NOT AVAILABLE ON/OFF TEMP TEMP.
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FUNCTIONAL PARTS PLA-RP35AA.UK PLA-RP50AA.UK PLA-RP60AA.UK PLA-RP71AA.UK MOTOR CAP SPL WASHER CONDENSER EVAPORATOR TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR FLARE NUT Q'ty / set Remarks Price Wiring Recom- Specifi- Parts No. Parts Name PLA-RP·AA.UK (Drawing Diagram mended cation Symbol Q'ty No.) Unit...
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FUNCTIONAL PARTS PLA-RP100AA.UK PLA-RP125AA.UK PLA-RP140AA.UK MOTOR CAP SPL WASHER CONDENSER EVAPORATOR TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR FLARE NUT Q'ty / set Remarks Price Wiring Recom- Specifi- Parts No. Parts Name (Drawing PLA-RP.AA.UK Diagram mended cation Symbol Q'ty No.) Unit Amount 125,140 S70 003 687 BASE...
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FUNCTIONAL PARTS PLH-P35AAH.UK PLH-P50AAH.UK PLH-P60AAH.UK PLH-P71AAH.UK MOTOR CAP THERMAL FUSE SPL WASHER THERMAL FUSE HEATER THERMAL SWITCH CONDENSER EVAPORATOR TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR Q'ty / set Price Wiring Recom- Remarks Specification Parts No. Parts Name PLH -P·AAH.UK Diagram mended (Drawing No.) Symbol Q'ty...
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FUNCTIONAL PARTS PLH-P100AAH.UK PLH-P125AAH.UK PLH-P140AAH.UK MOTOR CAP THERMAL FUSE SPL WASHER THERMAL FUSE HEATER THERMAL SWITCH CONDENSER EVAPORATOR TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR Q'ty / set Price Wiring Remarks Recom- Specification Parts No. Parts Name PLH -P125,140 Diagram PLH -P100 mended (Drawing No.) Symbol...
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FUNCTIONAL PARTS PLA-RP35AA.UK PLA-RP100AA.UK PLA-RP50AA.UK PLA-RP125AA.UK PLA-RP60AA.UK PLA-RP140AA.UK PLA-RP71AA.UK DRAIN PLUG DRAIN PLUG CAPACITOR TERMINAL BLOCK TERMINAL BLOCK ROOM TEMPERATURE THERMISTOR Part number that is circled is not shown in the figure. Price Q'ty / set Wiring Recom- Remarks Parts No.
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FUNCTIONAL PARTS PLH-P35AAH.UK PLH-P100AAH.UK PLH-P50AAH.UK PLH-P125AAH.UK PLH-P60AAH.UK PLH-P140AAH.UK PLH-P71AAH.UK DRAIN PLUG DRAIN PLUG CAPACITOR RELAY TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK ROOM TEMPERATURE THERMISTOR Part number that is circled is not shown in the figure. Q'ty / set Price Wiring Recom- Remarks Specification...
RoHS PARTS LIST PANEL PARTS PLA-RP35AA.UK PLH-P35AAH.UK PLA-RP50AA.UK PLH-P50AAH.UK PLA-RP60AA.UK PLH-P60AAH.UK GEAR PLA-RP71AA.UK PLH-P71AAH.UK PLA-RP100AA.UK PLH-P100AAH.UK GEAR PLA-RP125AA.UK PLH-P125AAH.UK (VANE) PLA-RP140AA.UK PLH-P140AAH.UK VANE BUSH STEPPING MOTOR RECEIVER CHECK TEST RUN MODEL SELECT ˚C AMPM AMPM NOT AVAILABLE ON/OFF TEMP TEMP.
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FUNCTIONAL PARTS PLA-RP35AA.UK PLA-RP50AA.UK PLA-RP60AA.UK PLA-RP71AA.UK MOTOR CAP SPL WASHER CONDENSER EVAPORATOR TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR FLARE NUT Q'ty / set Remarks Price Wiring Recom- Specifi- Parts No. Parts Name PLA-RP·AA.UK (Drawing Diagram mended cation Symbol Q'ty No.) Unit...
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FUNCTIONAL PARTS PLA-RP100AA.UK PLA-RP125AA.UK PLA-RP140AA.UK MOTOR CAP SPL WASHER CONDENSER EVAPORATOR TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR FLARE NUT Q'ty / set Remarks Price Wiring Recom- Specification Parts No. Parts Name (Drawing PLA-RP.AA.UK Diagram mended Symbol Q'ty No.) Unit Amount 125,140 S70 003 687 BASE S70 E01 130...
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FUNCTIONAL PARTS PLH-P35AAH.UK PLH-P50AAH.UK PLH-P60AAH.UK PLH-P71AAH.UK MOTOR CAP THERMAL FUSE SPL WASHER THERMAL FUSE HEATER THERMAL SWITCH CONDENSER EVAPORATOR TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR Q'ty / set Price Wiring Recom- Remarks Specification Parts No. Parts Name PLH -P·AAH.UK Diagram mended (Drawing No.) Symbol Q'ty...
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FUNCTIONAL PARTS PLH-P100AAH.UK PLH-P125AAH.UK PLH-P140AAH.UK MOTOR CAP THERMAL FUSE SPL WASHER THERMAL FUSE HEATER THERMAL SWITCH CONDENSER EVAPORATOR TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR Q'ty / set Price Wiring Recom- Remarks Specification PLH -P · AAH.UK Parts No. Parts Name Diagram mended (Drawing No.) Symbol...
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FUNCTIONAL PARTS PLA-RP35AA.UK PLA-RP100AA.UK PLA-RP50AA.UK PLA-RP125AA.UK PLA-RP60AA.UK PLA-RP140AA.UK PLA-RP71AA.UK DRAIN PLUG DRAIN PLUG CAPACITOR TERMINAL BLOCK TERMINAL BLOCK ROOM TEMPERATURE THERMISTOR Part number that is circled is not shown in the figure. Price Q'ty / set Wiring Recom- Remarks Parts No.
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FUNCTIONAL PARTS PLH-P35AAH.UK PLH-P100AAH.UK PLH-P50AAH.UK PLH-P125AAH.UK PLH-P60AAH.UK PLH-P140AAH.UK PLH-P71AAH.UK DRAIN PLUG DRAIN PLUG CAPACITOR RELAY TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK ROOM TEMPERATURE THERMISTOR Part number that is circled is not shown in the figure. Q'ty / set Price Wiring Recom- Remarks Specification...
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HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN CCopyright 2006 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Jul. 2006 No.OC335 REVISED EDITION-A PDF 7 New publication, effective Jul. 2006. Distributed in Aug. 2005 No.OC335 PDF 8 Specifications subject to change without notice.