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SPLIT-TYPE, HEAT PUMP
AIR CONDITIONERS

SERVICE MANUAL

Series PEAD
Service ref.
Models
PEAD-RP35EA(
PEAD-RP50EA
PEAD-RP60EA
PEAD-RP71EA
PEAD-RP100EA(
PEAD-RP125EA
PEAD-RP140EA
INDOOR UNIT
)
2
)
2
TEMP.
ON/OFF
REMOTE CONTROLLER
Back to Index
R407C/R410A
CONTENTS
1. REFERENCE MANUAL ····························· 2
2. SAFETY PRECAUTION ···························· 3
3. PART NAMES AND FUNCTIONS ············· 7
4. SPECIFICATION ······································· 9
6. SOUND LEVELS ······································ 16
7. OUTLINES & DIMENSIONS ···················· 18
8. WIRING DIAGRAM ·································· 20
10. TROUBLESHOOTING ···························· 22
11. DISASSEMBLY INSTRUCTIONS ············ 34
12. PARTS LIST ············································· 36
13. OPTIONAL PARTS ·································· 42
2005
NOTE:
• This manual describes only
service data of the indoor
units.
TM

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   Summary of Contents for Mitsubishi Electric PEAD-RP35EA

  • Page 1: Table Of Contents

    Back to Index SPLIT-TYPE, HEAT PUMP 2005 AIR CONDITIONERS SERVICE MANUAL Series PEAD R407C/R410A <indoor unit> Service ref. NOTE: Models PEAD-RP35EA( • This manual describes only service data of the indoor PEAD-RP50EA units. PEAD-RP60EA PEAD-RP71EA PEAD-RP100EA( PEAD-RP125EA PEAD-RP140EA CONTENTS 1. REFERENCE MANUAL ····························· 2 2.
  • Page 2: Reference Manual

    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-RP71/100/125/140VHA-A OC337 PUHZ-RP200/250YHA OC338 PUHZ-RP200/250YHA-A OC339 PUHZ-P100/125/140VHA.UK OC359 PU(H)-P·VGAA.UK OC336 PU(H)-P·YGAA.UK SUZ-KA·VA.TH OC322 1-2. TECHNICAL DATA BOOK Manual No. Series (Outdoor unit) PUHZ-RP·VHA(-A) OCS01 PUHZ-RP·YHA(-A) PUHZ-P·VHA.UK OCS06 PU(H)-P·VGAA.UK...
  • Page 3: Safety Precaution

    SAFETY PRECAUTION CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilising refrigerant R407C Do not use the existing refrigerant piping. Use liquid refrigerant to charge the system. The old refrigerant and lubricant in the existing piping If gas refrigerant is used to seal the system, the composition contains a large amount of chlorine which may cause the of the refrigerant in the cylinder will change and performance lubricant deterioration of the new unit.
  • Page 4 [3] Service tools Use the below service tools as exclusive tools for R407C refrigerant. Tool name Specifications Gauge manifold ·Only for R407C. ·Use the existing fitting SPECIFICATIONS. (UNF7/16) ·Use high-tension side pressure of 3.43MPa·G or over. Charge hose ·Only for R407C. ·Use pressure performance of 5.10MPa·G or over.
  • Page 5 CAUTIONS RELATED TO NEW REFRIGERANT <Cautions for units utilizing 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 following.
  • Page 6 [2] Additional refrigerant charge When charging directly from cylinder Ensure that the cylinder for R410A is syphon type. Charging should be performed with the syphon cylinder type stood vertically. (Refrigerant must be charged from liquid phase.) Unit Gravimeter [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant.
  • Page 7: Part Names And Functions

    PART NAMES AND FUNCTIONS Indoor Unit • Air intake (sucks the air inside the room into the unit) Air outlet In case of rear inlet In case of bottom inlet Only RP35~60EA RP35EA...
  • Page 8 • Remote controller Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button. • Operation buttons ON/OFF button Set Temperature buttons Down Fan Speed button Timer Menu button (Monitor/Set button) Filter button (<Enter>...
  • Page 9: Specification

    SPECIFICATION Service Ref. PEAD-RP35EA PEAD-RP35EA Power supply Single phase, 50Hz, 220-240V Input 0.13 0.14 Running current 0.55 0.61 Starting current External finish Galvanized sheets Heat exchanger Plate fin coil Fan (drive) × No. Centrifugal (direct) × 2 Fan motor output 0.043...
  • Page 10 Service Ref. PEAD-RP71EA Power supply Single phase, 50Hz, 220-240V Input 0.35 Running current 1.55 Starting current External finish Galvanized sheets Heat exchanger Plate fin coil Fan (drive) × No. Centrifugal (direct) × 2 Fan motor output 0.15 Airflow (Lo-Hi) /min <CFM> 20-25<706-883>...
  • Page 11 Service Ref. PEAD-RP140EA Power supply Single phase, 50Hz, 220-240V Input 0.61 Running current 2.69 Starting current External finish Galvanized sheets Heat exchanger Plate fin coil Fan (drive) × No. Centrifugal (direct) × 2 Fan motor output 0.27 Airflow (Lo-Hi) /min <CFM> 36.5-46<1,288-1,624>...
  • Page 12: Fan Performance And Corrected Air Flow

    Heating Fan Performance <70Pa> 10 12 14 16 18 Air flow (CMM) 10 12 14 16 18 Air Flow (CMM) PEAD-RP50EA, PEAD-RP35EA Fan Performance <30Pa> Capacity Corrected Air Flow input Cooling 12 14 16 Air flow (CMM) 10 12 14 16 18 20 Air Flow (CMM) Fan Performance <70Pa>...
  • Page 13 PEAD-RP60EA Capacity Fan Performance <30Pa> Corrected Air Flow input Cooling 12 14 16 24 26 Air flow (CMM) 10 12 14 16 18 20 22 24 Air Flow (CMM) Heating Fan Performance <70Pa> 12 14 16 22 24 Air flow (CMM) 10 12 14 16 18 20 22 24 26 Air Flow (CMM) PEAD-RP71EA...
  • Page 14 PEAD-RP100EA Fan performance <130Pa> Fan performance <70Pa> 26 28 30 32 34 36 38 40 24 26 28 30 32 34 36 38 A ir flo w (CMM) A ir fl o w ( CM M ) Corrected Air Flow Heating Capacity Input...
  • Page 15 PEAD-RP140EA 36 38 40 42 44 46 48 50 52 36 38 40 42 44 46 48 50 Ai r flow (CMM) Ai r fl ow (CM M) Heating Corrected Air Flow Capacity Input Cooling Air flow (CMM) Air flow (CMM)
  • Page 16: Pead-rp71ea Pead-rp100ea

    SOUND LEVELS 1)Noise level Ceiling concealed Noise level at anechoic room (Low-High) Unit : dB(A) Aux.duct External static pressure Model 30Pa 70Pa 130Pa PEAD-RP35EA 34-38 36-43 PEAD-RP50EA 36-40 38-44 PEAD-RP35EA PEAD-RP60EA 37-41 39-46 PEAD-RP71EA 37-41 40-45 41-46 42-48 PEAD-RP100EA PEAD-RP125EA...
  • Page 17 (External static (External static PEAD-RP71EA PEAD-RP71EA pressure 70Pa) pressure 130Pa) High High NC60 NC60 NC50 NC50 NC40 NC40 NC30 NC30 NC20 NC20 Approximate minimum Approximate minimum audible limit on audible limit on continuous noise continuous noise 1000 2000 4000 8000 1000 2000 4000...
  • Page 18: Outlines & Dimensions

    OUTLINES & DIMENSIONS 1. INDOOR UNIT PEAD-RP35, 50, 60EA, RP35EA Model R410A Outdoor unit;6.35 R410A Outdoor unit;12.7 RP35,50 R407C Outdoor unit;9.52 R407C Outdoor unit;15.88 Outdoor unit(MUZ,SUZ);6.35 RP60 1012 1070 1044 15.88 Other outdoor unit;9.52 Setting at shipment Service space:500 or more 10-ø3(RP35,50) 50~150 12-ø3(RP60)
  • Page 19 2. REMOTE CONTROLLER (Front view) (Side view) (Rear view)
  • Page 20: Wiring Diagram

    WIRING DIAGRAM PEAD-RP35, 50, 60, 71, 100, 125, 140EA PEAD-RP35, 100EA INSIDE SECTION OF CONTROL BOX CN31 I.B. 1 2 3 4 5 6 7 8 9 1 2 3 CN22 CN20 CN21 CN29 CN31 CN41 CN24 CN51 CN32 CN90 (WHT) (WHT) (BLU)
  • Page 21: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM PEAD-RP35, 50, 60, 71, 100, 125, 140EA PEAD-RP35, 100EA Refrigerant flow in cooling Refrigerant flow in heating Indoor unit Refrigerant GAS pipe connection Indoor Thermistor TH5 heat (Cond./Eva. exchanger temperature) Strainer Thermistor TH1 Thermistor TH2 (Room temperature) Pipe temperature (Liquid) Refrigerant LIQUID pipe connection...
  • Page 22: Troubleshooting

    TROUBLESHOOTING 10-1. 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.
  • Page 23: Self-diagnosis Action Table

    Note: Refer to the manual of outdoor unit for the details of display 10-2. SELF-DIAGNOSIS ACTION TABLE such as F, U, and other E. Error Code Meaning of error code and detection method Countermeasure Cause 1 Defective thermistor 1–3 Check resistance value of thermistor. Abnormality of room temperature thermistor (TH1) characteristics.
  • Page 24 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.
  • Page 25 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.
  • Page 26 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...
  • Page 27: Troubleshooting By Inferior Phenomena

    10-3. 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.
  • Page 28 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.
  • Page 29 10-4. When wired remote controller or indoor unit micro computer troubles 1. If there is not any other wrong when trouble occurs, emergency operation starts as the indoor controller board switch (SWE) is set to ON. During the emergency operation the indoor unit is as follows; (1) Indoor fan high speed operation (2) Drain-up machine operation 2.
  • Page 30 10-5. HOW TO CHECK THE PARTS Parts name Check points Room temperature Disconnect the connector then measure the resistance using a tester. thermistor (TH1) (Surrounding temperature 10:~30:) Pipe temperature thermistor (TH2) Normal Abnormal (Refer to the thermistor) Condenser/Evaporator 4.3k"~9.6k" Open or short temperature thermistor (TH5) <Thermistor Characteristic graph>...
  • Page 31 10-6.TEST POINT DIAGRAM 10-6-1. Power board PEAD-RP35EA( ), PEAD-RP50EA, PEAD-RP60EA, PEAD-RP71EA, PEAD-RP100EA( ), PEAD-RP125EA, PEAD-RP140EA CN2S Connect to the indoor controller board (CN2D) Between 1 1 to 3 3 12.6-13.7V DC (Pin1 1 (+)) CNSK Connect to the indoor controller board...
  • Page 32 10-6-2. Indoor controller board PEAD-RP35EA( ), PEAD-RP50EA, PEAD-RP60EA, PEAD-RP71EA, PEAD-RP100EA( ), PEAD-RP125EA, PEAD-RP140EA CN2D LED1 Connector to the indoor LED2 LED3 Power supply Power supply power board (CN2S) Transmission (I.B) (12.5~13.7V DC) (R.B) (Indoor/outdoor) CN3C – Transmission (Indoor/outdoor) CN22 (0~24V DC)
  • Page 33 Jumper wire Remarks Functions For service board Model settings Service board MODELS 1 2 3 4 5 PEAD-RP35EA( 1 2 3 4 5 PEAD-RP50EA 1 2 3 4 5 PEAD-RP60EA Capacity 1 2 3 4 5 settings PEAD-RP71EA 1 2 3 4 5...
  • Page 34: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS Figure1. Disconnect the fan motor connecter (and the booster heater connector) Drain pan catches (Hidden) Heat exchanger Bottom plate Filter assembly Drain pan catches (Hidden) Bottom plate Drain pan 1. Removing the fan motor 5. Remove the fan base plate as follow: 1.
  • Page 35 Figure3. Fan base Sirocco fan Motor Housing Motor base assembly Bush (Only PEAD-RP71EA) Bush Piece Sirocco fan Piece Housing assembly...
  • Page 36: Parts List

    PARTS LIST PEAD-RP35EA, PEAD-RP35EA , PEAD-RP50EA, PEAD-RP60EA EXTERNAL PARTS 5.6.7 10.11 Qt’y/set Part No. Part Name Drawing No. Spec. PEAD- PEAD- PEAD- PEAD- RP35EA RP35EA RP50EA RP60EA S70 031 669 Bottom plate 1 W638939Z04 S70 011 669 Bottom plate 1...
  • Page 37: External Parts

    PEAD-RP71EA, PEAD-RP100EA, PEAD-RP100EA PEAD-RP125EA, PEAD-RP140EA EXTERNAL PARTS 7.8.9.10 4.5.6 14.15.16 11.12.13 1.2.3 Qt’y/set Part No. Part Name Drawing No. Spec. PEAD- PEAD- PEAD- PEAD- PEAD- RP71EA RP100EA RP100EA RP125EA RP140EA S70 041 669 Bottom plate 1 W634050Z01 S70 042 669 Bottom plate 1 W634028Z01 Bottom plate 1...
  • Page 38 PEAD-RP35EA, PEAD-RP35EA , PEAD-RP50EA, PEAD-RP60EA BLOWER PARTS 9.10.11 Qt’y/set Part No. Part Name Drawing No. Spec. PEAD- PEAD- PEAD- PEAD- RP35EA RP35EA RP50EA RP60EA S70 652 131 Attachment W353715H01 S70 051 677 Fan base ass’y W638932G03 S70 061 677 Fan base ass’y...
  • Page 39 PEAD-RP71EA, PEAD-RP100EA, PEAD-RP100EA PEAD-RP125EA, PEAD-RP140EA BLOWER PARTS 3.4.5 15.16 10.11.12 13.14 1.17 Qt’y/set Spec. Part No. Part Name Drawing No. PEAD- PEAD- PEAD- PEAD- PEAD- RP71EA RP100EA RP100EA RP125EA RP140EA Piece R02K338H02 S70 508 131 Piece R02K338G82 with a nut S70 508 132 S70 073 677 Fan base ass’y...
  • Page 40 PEAD-RP35EA, PEAD-RP35EA , PEAD-RP50EA, PEAD-RP60EA, PEAD-RP71EA, PEAD-RP100EA, PEAD-RP100EA , PEAD-RP125EA, PEAD-RP140EA CONTROL BOX PARTS Qt’y/set Part No. Part Name Drawing No. Spec. PEAD- PEAD- PEAD- PEAD- RP35EA RP35EA RP50EA RP60EA S70 979 717 Terminal bed P436110X01 < TB4 > S70 435 717...
  • Page 41 PEAD-RP35EA, PEAD-RP35EA , PEAD-RP50EA, PEAD-RP60EA, PEAD-RP71EA, PEAD-RP100EA, PEAD-RP100EA , PEAD-RP125EA, PEAD-RP140EA ELECTRICAL PARTS ON/OFF TEMP. Qt’y/set Part No. Part Name Drawing No. Spec. PEAD- PEAD- PEAD- PEAD- RP35EA RP35EA RP50EA RP60EA S70 KW1 713 Remote controller P972122X01 MA Remo-con Remote controller cable...
  • Page 42: Optional Parts

    OPTIONAL PARTS 1. REMOTE SENSOR Part No. PAC-SE41TS-E Applied model PEAD-RP35,50,60,71,100,125,140EA , PEAD-RP35,100EA 2. REMOTE OPERATION ADAPTER Part No. PAC-SF40RM-E Applied model PEAD-RP35,50,60,71,100,125,140EA , PEAD-RP35,100EA 3. REMOTE ON/OFF ADAPTER Part No. PAC-SE55RA-E Applied model PEAD-RP35,50,60,71,100,125,140EA , PEAD-RP35,100EA 4. OPTIONAL MOTOR The external static pressure of 130Pa allows long ducts to be used more extensively to enable the most convenient posi- tioning of indoor units.
  • Page 43 Issued in Nov. 2005 HWE05210 New publication, effective Nov. 2005 Printed in Japan Specifications subject to change without notice.

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