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Mitsubishi Electric Mr.Slim PUHZ-RP35VHA3 Service Manual

Split-type, heat pump air conditioners
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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SERVICE MANUAL

R410A

Outdoor unit

[model names]

PUHZ-RP35VHA2
PUHZ-RP50VHA2
PUHZ-RP60VHA2
PUHZ-RP71VHA2
PUHZ-RP100VHA2
PUHZ-RP125VHA2
PUHZ-RP140VHA2
PUHZ-RP100YHA2
PUHZ-RP125YHA2
PUHZ-RP140YHA2
[Service Ref.]
Service Ref. is on page 2.
PUHZ-RP60VHA2 PUHZ-RP60VHA2
PUHZ-RP71VHA2 PUHZ-RP71VHA2
PUHZ-RP60VHA3 PUHZ-RP71VHA3
PUHZ-RP35VHA3
PUHZ-RP50VHA3
PUHZ-RP60VHA3
PUHZ-RP71VHA3
PUHZ-RP100VHA3
PUHZ-RP100YHA3
1
1
REVISED EDITION-C
Revision:
• PUHZ-RP35/50/60/71/100VHA3
and PUHZ-RP100YHA3 are
added in REVISED EDITION-
C.
• Some descriptions have been
modified.
• Please void OC374 REVISED
EDITION-B.
NOTE:
• This manual describes only
service data of the outdoor
units.
• RoHS compliant products have
mark on the spec name
plate.
• For servicing of RoHS compli-
ant products, refer to the RoHS
PARTS LIST.
CONTENTS
1. TECHNICAL CHANGES·································3
2. REFERENCE MANUAL··································4
3. SAFETY PRECAUTION··································5
4. FEATURES ·····················································9
5. SPECIFICATIONS·········································10
6. DATA ·····························································13
7. OUTLINES AND DIMENSIONS····················20
8. WIRING DIAGRAM ·······································25
9. WIRING SPECIFICATIONS ··························32
10. REFRIGERANT SYSTEM DIAGRAM··············37
11. TROUBLESHOOTING···································40
12. FUNCTION SETTING··································107
14. EASY MAINTENANCE FUNCTION ············124
15. DISASSEMBLY PROCEDURE ···················129
16. PARTS LIST ················································151
17. RoHS PARTS LIST ·····································162
February 2008
No.OC374

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  Summary of Contents for Mitsubishi Electric Mr.Slim PUHZ-RP35VHA3

  • Page 1: Table Of Contents

    SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS February 2008 No.OC374 SERVICE MANUAL REVISED EDITION-C R410A Outdoor unit [model names] Revision: • PUHZ-RP35/50/60/71/100VHA3 and PUHZ-RP100YHA3 are PUHZ-RP35VHA2 PUHZ-RP35VHA3 added in REVISED EDITION- PUHZ-RP50VHA2 PUHZ-RP50VHA3 • Some descriptions have been PUHZ-RP60VHA2 PUHZ-RP60VHA3 modified. PUHZ-RP71VHA2 PUHZ-RP71VHA3 •...
  • Page 2 [Service Ref.] PUHZ-RP35VHA2 PUHZ-RP35VHA2 PUHZ-RP50VHA2 PUHZ-RP50VHA2 PUHZ-RP60VHA2 PUHZ-RP60VHA2 PUHZ-RP71VHA2 PUHZ-RP71VHA2 PUHZ-RP100VHA2 PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2 PUHZ-RP140VHA2 PUHZ-RP100YHA2 PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2 PUHZ-RP140YHA2 PUHZ-RP35VHA3 PUHZ-RP50VHA3 PUHZ-RP60VHA3 PUHZ-RP71VHA3 PUHZ-RP100VHA3 PUHZ-RP100YHA3...
  • Page 3: Technical Changes

    TECHNICAL CHANGES PUHZ-RP35/50VHA2 PUHZ-RP35/50VHA3 · Muffler has been changed. · Compressor (MC) has been changed. · Controller circuit board(C.B.) and power circuit board(P.B.) have been changed. PUHZ-RP60/71VHA2 PUHZ-RP60/71VHA3 · Compressor (MC) and oil(type and amount) have been changed. · Refigerant circiuit has been changed. ·...
  • Page 4: Reference Manual

    REFERENCE MANUAL 2-1. INDOOR UNIT SERVICE MANUAL Service Model name Service Ref. Manual No. PLA-RP35/50/60/71/100/125/140BA PLA-RP35/50/60/71/100/125/140BA.UK OCH412 PLA-RP71/100/125BA2 PLA-RP71/100/125BA2.UK OCB412 PLA-RP35/50/60/71AA.UK OC335 PLA-RP35/50/60/71AA PLA-RP35/50/60/71AA OC327 PLA-RP100/125/140AA2 PLA-RP100/125/140AA2.UK OC357 PCA-RP50/60/71/100/125/140GA PCA-RP50/60/71/100/125/140GA OC328 PCA-RP50GA2 PCA-RP50GA2 PCA-RP71/125HA PCA-RP71/125HA OC329 PKA-RP35/50GAL PKA-RP35/50GAL OC330 PKA-RP60/71/100FAL PKA-RP60/71/100FAL OC331 PKA-RP50FAL2...
  • Page 5: Safety Precaution

    SAFETY PRECAUTION 3-1. ALWAYS OBSERVE FOR SAFETY Before obtaining access to termnal, all supply ciucuits must disconnected. 3-2. 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 followings.
  • Page 6 Unit Gravimeter [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. Tool name 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.
  • Page 7: Precautions When Reusing Existing R22 Refrigerant Pipes

    3-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES (1) Flowchart Measure the existing pipe thickness and check for damage. The existing pipe thickness meets speci- The existing pipe thickness does not meet fications and the pipes are not damaged. specifications or the pipes are damaged. Check if existing air conditioner can operate.
  • Page 8 (2) Cautions for refrigerant piping work New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working pressure of R410A is 1.6 time higher than that of R22, their sizes of flared sections and flare nuts are different.
  • Page 9: Features

    FEATURES PUHZ-RP35/ 50VHA2 PUHZ-RP60/ 71VHA2 PUHZ-RP35/ 50VHA2 PUHZ-RP60/ 71VHA2 PUHZ-RP35/ 50VHA3 PUHZ-RP60/ 71VHA3 PUHZ-RP100/ 125/ 140VHA2 PUHZ-RP100/ 125/ 140VHA2 PUHZ-RP100/ 125/ 140YHA2 PUHZ-RP100/ 125/ 140YHA2 PUHZ-RP100VHA3 PUHZ-RP100YHA3 CHARGELESS SYSTEM PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT. Max.30m(PUHZ-RP35/50/60/71/100/125/140) The refrigerant circuit with LEV(Linear Expansion Valve) and power receiver always control the optimal refrigerant level regardless of the length (30m max.
  • Page 10: Specifications

    SPECIFICATIONS Service Ref. PUHZ-RP35VHA2 / VHA3 PUHZ-RP50VHA2 / VHA3 Mode Cooling Heating Cooling Heating Single, 50Hz, 230V Power supply (phase, cycle, voltage) 4.01 4.23 6.16 6.47 Running current Max. current Munsell 3Y 7.8/1.1 External finish Refrigerant control Linear Expansion Valve Hermetic Compressor Model...
  • Page 11 Service Ref. PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2 Cooling Heating Cooling Heating Cooling Heating Mode Power supply (phase, cycle, voltage) Single 50Hz, 230V 12.53 12.39 15.53 15.98 19.65 19.92 Running current 29.5 Max. current External finish Munsell 3Y 7.8/1.1 Linear Expansion Valve Refrigerant control Hermetic Compressor ANV33FDDMT...
  • Page 12 Service Ref. PUHZ-RP100VHA2 / VHA3 PUHZ-RP125VHA2 PUHZ-RP140VHA2 Cooling Heating Cooling Heating Cooling Heating Mode Power supply (phase, cycle, voltage) Single 50Hz, 230V 12.53 12.39 15.53 15.98 19.65 19.92 Running current Max. current 29.5 External finish Munsell 3Y 7.8/1.1 Linear Expansion Valve Refrigerant control Hermetic Compressor...
  • Page 13: Data

    DATA 6-1. REFILLING REFRIGERANT CHARGE (R410A : kg) Piping length (one way) Initial Service Ref. charged PUHZ-RP35VHA2 — — PUHZ-RP35VHA3 PUHZ-RP50VHA2 — — PUHZ-RP50VHA3 PUHZ-RP60VHA2 — — PUHZ-RP60VHA3 PUHZ-RP71VHA2 — — PUHZ-RP71VHA3 PUHZ-RP100VHA2 PUHZ-RP100VHA3 PUHZ-RP100YHA2 PUHZ-RP100YHA3 PUHZ-RP125VHA2 PUHZ-RP125VHA2 PUHZ-RP125YHA2 PUHZ-RP125YHA2 PUHZ-RP140VHA2 PUHZ-RP140VHA2 PUHZ-RP140YHA2...
  • Page 14 6-3. NOISE CRITERION CURVES MICROPHONE UNIT 1.5m GROUND PUHZ-RP35/50VHA2 PUHZ-RP60/71VHA2 MODE SPL(dB) LINE MODE SPL(dB) LINE PUHZ-RP35/50VHA2 PUHZ-RP60/71VHA2 COOLING COOLING PUHZ-RP35/50VHA3 PUHZ-RP60/71VHA3 HEATING HEATING NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE THRESHOLD OF THRESHOLD OF HEARING FOR HEARING FOR NC-20...
  • Page 15: Heating

    6-4. STANDARD OPERATION DATA PLA-RP35AA PLA-RP50AA PLA-RP60AA PLA-RP71AA Representative matching Mode Cooling Heating Cooling Heating Cooling Heating Cooling Heating Capacity 3,600 4,100 5,000 6,000 6,000 7,000 7,100 8,000 Input 1.07 1.12 1.55 1.62 1.65 1.85 1.97 2.34 Indoor unit PLA-RP35AA PLA-RP50AA PLA-RP60AA PLA-RP71AA...
  • Page 16 PLA-RP100AA2 PLA-RP125AA2 PLA-RP140AA2 Representative matching Cooling Heating Heating Cooling Heating Cooling Mode 10,000 16,000 11,200 12,500 14,000 14,000 Capacity 4.69 3.02 3.02 3.87 3.88 4.65 Input Indoor unit PLA-RP100AA2 PLA-RP125AA2 PLA-RP140AA2 1 , 50 1 , 50 1 , 50 Phase , Hz Voltage 0.92...
  • Page 17: Heating

    PLA-RP100AA2 PLA-RP140AA2 PLA-RP125AA2 Representative matching Mode Cooling Heating Cooling Heating Cooling Heating Capacity 10,000 11,200 12,500 14,000 14,000 16,000 Input 3.02 3.02 3.87 3.88 4.65 4.69 Indoor unit PLA-RP100AA2 PLA-RP125AA2 PLA-RP140AA2 Phase , Hz 1 , 50 1 , 50 1 , 50 Voltage Current...
  • Page 18: Puhz-Rp60Vha3 Puhz-Rp71Vha3

    PLA-RP35BA PLA-RP50BA PLA-RP60BA PLA-RP71BA2 Representative matching Mode Cooling Heating Cooling Heating Cooling Heating Cooling Heating Capacity 3,600 4,100 5,000 6,000 6,000 7,000 7,100 8,000 Input 1.07 1.12 1.55 1.62 1.65 1.85 1.94 1.90 Indoor unit PLA-RP35BA PLA-RP50BA PLA-RP60BA PLA-RP71BA2 Phase , Hz 1 , 50 1 , 50 1 , 50...
  • Page 19 PLA-RP100BA2 PLA-RP100BA2 Representative matching Cooling Heating Cooling Heating Mode 10,000 11,200 10,000 11,200 Capacity 2.44 2.54 2.50 2.60 Input Indoor unit PLA-RP100BA2 PLA-RP100BA2 1 , 50 1 , 50 Phase , Hz Voltage 1.00 0.92 Current PUHZ-RP100VHA3 PUHZ-RP100YHA3 Outdoor unit 1 , 50 3 , 50 Phase , Hz...
  • Page 20: Outlines And Dimensions

    OUTLINES AND DIMENSIONS PUHZ-RP35/50VHA2 Unit : mm PUHZ-RP35/50VHA3 [33 drain hole 347.5 Air intake Air intake [33 drain hole 45.4 Service panel 4-10 o 21 oval hole (M10 foundation bolt) Service panel for charge plug Air discharge Handle for Connection for moving liquid pipe Connection for...
  • Page 21 PUHZ-RP60VHA2 Unit : mm PUHZ-RP71VHA2...
  • Page 22 PUHZ-RP60VHA2 PUHZ-RP60VHA3 Unit : mm PUHZ-RP71VHA2 PUHZ-RP71VHA3...
  • Page 23 PUHZ-RP100VHA2 Unit : mm PUHZ-RP125VHA2 PUHZ-RP140VHA2 PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2...
  • Page 24 PUHZ-RP100VHA2 Unit : mm PUHZ-RP100VHA3 PUHZ-RP125VHA2 PUHZ-RP140VHA2 PUHZ-RP100YHA2 PUHZ-RP100YHA3 PUHZ-RP125YHA2 PUHZ-RP140YHA2...
  • Page 25: Wiring Diagram

    WIRING DIAGRAM PUHZ-RP35VHA2 PUHZ-RP50VHA2 PUHZ-RP60VHA2 PUHZ-RP71VHA2 Symbols used in wiring diagram above are, :Connector, :Terminal(block) SYMBOL NAME SYMBOL NAME SYMBOL NAME N.F. Noise Filter Circuit Board Terminal Block<Power Supply, Indoor/Outdoor> Switch<Pump Down> Motor for Compressor LI/LO Connection Terminal<L-Phase> CN31 Connector<Emergency Operation> Fan Motors NI/NO Connection Terminal<N-Phase>...
  • Page 26 PUHZ-RP35VHA2 PUHZ-RP50VHA2 PUHZ-RP60VHA2 PUHZ-RP71VHA2 SYMBOL NAME SYMBOL NAME SYMBOL NAME Terminal Block<Power Supply, Indoor/Outdoor> N.F. Noise Filter Circuit Board CN31 Connector<Emergency Operation> Motor for Compressor LI/LO Connection Terminal<L-Phase> Connector<Connection for Option> Fan Motor NI/NO Connection Terminal<N-Phase> Connector<A-Control Service Inspection Kit> 21S4 Solenoid Valve (Four-Way Valve) Connection Terminal<Ground>...
  • Page 27: Puhz-Rp60Vha3 Puhz-Rp71Vha3

    PUHZ-RP35VHA3 PUHZ-RP50VHA3 PUHZ-RP60VHA3 PUHZ-RP71VHA3 SYMBOL NAME SYMBOL NAME SYMBOL NAME Terminal Block<Power Supply, Indoor/Outdoor> N.F. Noise Filter Circuit Board CN31 Connector<Emergency Operation> Motor for Compressor LI/LO Connection Terminal<L-Phase> Connector<Connection for Option> Fan Motor NI/NO Connection Terminal<N-Phase> Connector<A-Control Service Inspection Kit> 21S4 Solenoid Valve (Four-Way Valve) Connection Terminal<Ground>...
  • Page 28 PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2 Symbols used in wiring diagram above are, :Connector, :Terminal(block) SYMBOL NAME SYMBOL NAME SYMBOL NAME Terminal Block<Power Supply, Indoor/Outdoor > P.B. Power Circuit Board Switch<Function Setup> Motor for Compressor TABU/V/W Switch Connection Terminal<U/V/W-Phase> MF1,MF2 Fan Motors TABS/T Connection Terminal<L/N-Phase>...
  • Page 29 PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2 PUHZ-RP100VHA3 SYMBOL NAME SYMBOL NAME SYMBOL NAME Terminal Block<Power Supply, Indoor/Outdoor > TABP1/P2/P Connection Terminal<DC Voltage> Switch<Pump Down> Motor for Compressor Connection Terminal<DC Voltage> CN31 Connector<Emergency Operation> TABN1/N2/N MF1, MF2 Fan Motor DS2, DS3 Diode Bridge Connector<Connection for Option> 21S4 Solenoid Valve (Four-Way Valve) Power Module...
  • Page 30 PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2 SYMBOL NAME SYMBOL NAME SYMBOL NAME Terminal Block(Power Supply ) N.F. Noise Filter Circuit Board CN31 Connector(Emergency Operation) Terminal Block(Indoor/Outdoor ) LI1/LI2/LI3/NI 21S4 Connection Terminal(L1/L2/L3/N-Power Supply) Connector(Four-Way Valve) Motor for Compressor LO1/LO2/LO3/NO Connection Terminal(L1/L2/L3/N-Power Supply) Connector(Bypass Valve) MF1,MF2 Fan Motor Connection Terminal(Ground)
  • Page 31 PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2 PUHZ-RP100YHA3 SYMBOL NAME SYMBOL NAME SYMBOL NAME Terminal Block<Power Supply > TB-C1 Switch Connection Terminal Terminal Block<Indoor/Outdoor > TB-N1 Switch Connection Terminal N.F. Motor for Compressor Noise Filter Circuit Board Switch<Pump Down> MF1, MF2 Fan Motor LI1/LI2/LI3/NI Connection Terminal<L1/L2/L3/N-Power Supply>...
  • Page 32: Wiring Specifications

    WIRING SPECIFICATIONS 9-1. FIELD ELECTRICAL WIRING (power wiring specifications) Outdoor unit model RP35, 50V RP60, 71V RP100, 125V RP140V RP100, 125, 140Y Outdoor unit power supply ~/N (single), 50 Hz, ~/N (single), 50 Hz, ~/N (single), 50 Hz, ~/N (single), 50 Hz, 3N ~ (3phase), 50 Hz, 230 V 230 V...
  • Page 33: Separate Indoor Unit/ Outdoor Unit Power Supplies

    9-2. SEPARATE INDOOR UNIT/ OUTDOOR UNIT POWER SUPPLIES The following connection patterns are available. The outdoor unit power supply patterns vary on models. 1:1 System A Outdoor unit power supply <For models without heater> B Earth leakage breaker * The optional indoor power supply terminal kit is required. C Wiring circuit breaker or isolating switch D Outdoor unit E Indoor unit/outdoor unit connecting cords...
  • Page 34 9-3. INDOOR – OUTDOOR CONNECTING CABLE The cable shall not be lighter than design 60245 IEC or 60227 IEC. Wire No. o Size (E) Outdoor power supply Max. 45m Max. 50m Max. 80m 3 o 1.5 (polar) 3 o 2.5 (polar) 3 o 2.5 (polar) and S3 separated Indoor unit-Outdoor unit 1 o Min.
  • Page 35 9-4. M-NET WIRING METHOD (Points to notice) (1) Outside the unit, transmission wires should stay away from electric wires in order to prevent electromagnetic noise from making an influence on the signal communication. Place them at intervals of more than 5cm. Do not put them in the same conduit tube.
  • Page 36 M-NET wiring (1) Use 2-core x 1.25mm shield wire for electric wires. M-NET terminal (Excluding the case connecting to system controller.) Ground block wire (2) Connect the wire to the M-NET terminal block.Connect one core of the transmission wire (non-polar) to A terminal and the other to B. Peel the shield wire, twist the shield part to a string and connect it to S terminal.
  • Page 37: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM PUHZ-RP35VHA2 PUHZ-RP35VHA2 PUHZ-RP35VHA3 unit : mm(inch) PUHZ-RP50VHA2 PUHZ-RP50VHA2 PUHZ-RP50VHA3 Thermistor TH7 (Outdoor) Heat exchanger Thermistor TH6 Stop valve Charge plug (Outdoor 2-phase pipe) (with service port) 4-way valve Refrigerant GAS pipe connection(1/2) Strainer Thermistor TH3 (Outdoor pipe) Muffler Distributor High pressure...
  • Page 38: Puhz-Rp60Vha3 Puhz-Rp71Vha3

    PUHZ-RP60VHA3 PUHZ-RP71VHA3 unit : mm(inch) Thermistor TH7 (Outdoor) Heat exchanger Stop valve Strainer 4-way valve Thermistor TH6 Refrigerant GAS pipe (Outdoor 2-phase pipe) connection [15.88(5/8) Thermistor TH3 Charge plug (Outdoor pipe) (High pressure) Muffler Charge plug (Low pressure) Distributor High pressure switch 63H Muffler Thermistor TH4...
  • Page 39 10-1. Refrigerant recovering (pump down) Perform the following procedures to recover the refrigerant when moving the indoor unit or the outdoor unit. 1Turn on the power supply (circuit breaker). wWhen power is supplied, make sure that “CENTRALLY CONTROLLED” is not displayed on the remote controller. If “CEN- TRALLY CONTROLLED”...
  • Page 40: Troubleshooting

    TROUBLESHOOTING 11-1. 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 and control board of outdoor unit. Actions to be taken for service, which depends on whether or not the trouble is reoccurring at service, are summarized in the table below.
  • Page 41 Operating procedures While the room temperature display on the remote "TEST RUN" and the currently selected controller is “PLEASE WAIT”, the remote controller is disabled. operation mode are displayed altemately. Wait until “PLEASE WAIT” disappears before using remote controller. 1. Turn on the main power supply. “PLEASE WAIT”...
  • Page 42 Test run [for wireless remote controller] Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500V Megger and check that it is equal to or greater than 1.0M". TEST RUN 1 Turn on the main power to the unit. TEST RUN 2 Press the button twice continuously.
  • Page 43: How To Proceed "Self-Diagnosis

    11-3. HOW TO PROCEED "SELF-DIAGNOSIS" 11-3-1. When a Problem Occurs During Operation If a problem occurs in the air conditioner, the indoor and outdoor units will stop, and the problem is shown in the remote controller display. [CHECK] and the refrigerant address are displayed on the temperature display, and the error code and unit number are displayed alternately as shown below.
  • Page 44: Remote Controller Diagnosis

    When the error history is reset, the display will look like the one shown below. Press the button twice within 3 seconds. The self-diagnosis ON/OFF However, if you fail to reset the error history, the error content will be displayed again. address or refrigerant address will blink.
  • Page 45 11-3-4. Malfunction-diagnosis method by wireless 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.
  • Page 46 • 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.
  • Page 47: Self-Diagnosis Action Table

    11-4. SELF-DIAGNOSIS ACTION TABLE (Note 1) Refer to indoor unit section for code P and code E. <Abnormalities detected when the power is put on> Abnormal points and detection method Judgment and action Error Code Case 1 No voltage is supplied to termi- 1 Check following items.
  • Page 48 Abnormal points and detection method Case Judgment and action Error Code 1 Check disconnection or looseness or polarity 1 Contact failure or miswiring of Miswiring of indoor/outdoor unit con- of indoor/outdoor unit connecting wire of indoor/outdoor unit connecting necting wire wire indoor and outdoor units.
  • Page 49 <Abnormalities detected while unit is operating> <Abnormalities detected while unit is operating> Abnormal points and detection method Judgment and action Error Code Case High pressure (High-pressure switch 1 Short cycle of indoor unit 1~6Check indoor unit and repair defect. 63H worked) 2 Clogged filter of indoor unit Abnormal if high-pressure switch 63H 3 Decreased airflow caused by...
  • Page 50 Abnormal points and detection method Judgment and action Error Code Case Open/short circuit of discharge 1 Disconnection or contact 1 Check connection of connector (TH4) on the temperature thermistor (TH4) failure of connector (TH4) on outdoor controller circuit board. Abnormal if open (3: or less) or short the outdoor controller circuit Check breaking of the lead wire for (217: or more) is detected during...
  • Page 51 Abnormal points and detection method Judgment and action Error Code Case Outdoor fan motor 1 Failure in the operation of 1 Check or replace the DC fan motor. Abnormal if rotational frequency of the fan the DC fan motor motor is not detected during DC fan motor 2 Failure in the outdoor circuit 2 Check the voltage of the outdoor circuit operation.
  • Page 52 Abnormal points and detection method Judgment and action Error Code Case Current sensor error 1 Disconnection of compressor 1 Correct the wiring (U W phase) to compres- • • Abnormal if current sensor detects –1.5A to wiring sor. Refer to 11-9 (Outdoor power circuit 1.5A during compressor operation.
  • Page 53 Error Code Abnormal points and detection method Judgment and action Case Remote controller control board 1 Defective remote controller 1 Replace remote controller. 1 Abnormal if data cannot be normally read from the nonvolatile memory of the remote controller control board. (Error code: E1) 2 Abnormal if the clock function of remote controller cannot be normally operated.
  • Page 54 Abnormal points and detection method Judgment and action Error Code Case Pipe temperature 1 Slight temperature difference Check pipe <liquid or condenser / <Cooling mode> between indoor room evaporator> temperature with room Detected as abnormal when the pipe tem- temperature and pipe <liquid temperature display on remote perature is not in the cooling range 3 min- or condenser / evaporator>...
  • Page 55 Error Code Abnormal points and detection method Case Judgment and action Communication error with communica- 1 Data of transmission proces- Turn off the power supply of outdoor unit, tion processor sor or unit processor is not indoor unit and FRESH MASTER or LOSSNAY Defective communication between unit transmitted normally because at the same time for 2 minutes or more, and...
  • Page 56 From the previous page. Error Code Abnormal points and detection method Case Judgment and action Same as mentioned in “A7” of the previous 4. If displayed address or attribute is 1 During group operation with remote controller, indoor unit detects indoor unit of multi- refrigerant page.
  • Page 57: Troubleshooting By Inferior Phenomena

    Error Code Abnormal points and detection method Case Judgment and action M-NET NO RESPONSE 1 Transmitting condition is 1 Check transmission waveform or noise on Abnormal if a message was transmitted repeated fault because of transmission wire. and there were reply (ACK) that message noise and the like.
  • Page 58 Phenomena Factor Countermeasure 4. Even controlling by the wireless 1The pair number settings of the wireless remote 1Check the pair number settings. remote controller, no beep is heard controller and indoor controller board are mis- and the unit does not start operat- matched.
  • Page 59 Symptoms: “PLEASE WAIT” is kept being displayed on the remote controller. Inspection method and Diagnosis flow Cause troubleshooting Check the display time of “PLEASE WAIT” after turning on the main power. 6 minutes 2 minutes or more or less How long is “PLEASE WAIT” •...
  • Page 60: Symptoms: Nothing Is Displayed On The Remote Controller

    LED display of the indoor controller board Symptoms: Nothing is displayed on the remote controller 1 LED1 : LED2 : LED3 : Inspection method and Diagnosis flow Cause troubleshooting Check the voltage between S1 and S2 on the terminal block (TB4) of the indoor unit which is used to connect the indoor unit and the outdoor unit.
  • Page 61 LED display of the indoor controller board Symptoms: Nothing is displayed on the remote controller 2 LED1 : LED2 : LED3 : Inspection method and Diagnosis flow Cause troubleshooting Check the voltage between S1 and S2 on the terminal block (TB4) of the indoor unit which is used to connect the indoor unit and the outdoor unit.
  • Page 62 LED display of the indoor controller board Symptoms: Nothing is displayed on the remote controller 3 LED1 : LED2 : LED3 : — Inspection method and Diagnosis flow Cause troubleshooting Check the voltage of the terminal block (TB6) of the remote controller. DC 10V to DC 16V? •...
  • Page 63 • Before repair Frequent calling from customers Phone Calls From Customers How to Respond Note 1 The operating display of remote 1 Check if power is supplied to air conditioner. Unit does not operate controller does not come on. Nothing appears on the display unless power is at all.
  • Page 64 Phone Calls From Customers How to Respond Note 1 Check the set temperature of remote controller. The room cannot be cooled or heated sufficiently. The outdoor unit cannot be operated if the set temperature is not appropriate. The outdoor unit operates in the following modes. COOL: When the set temperature is lower than the room temperature.
  • Page 65 Phone Calls From Customers How to Respond Note 3 Air blows out for a while after Something 3 This is not a malfunction. However, this control is also is wrong HEAT operation is stopped. The blower is operating just for cooling down the applied to the models which with the heated-up air conditioner.
  • Page 66 Phone Calls From Customers How to Respond Note A white mist is expelled from the indoor unit. This is not a malfunction. This may occur when the operation gets started in the room of high humidity. Water or moisture is expelled from the outdoor Cooling;...
  • Page 67 11-6. HOW TO CHECK THE PARTS PUHZ-RP35/50/60/71/100VHA2 PUHZ-RP100/125/140YHA2 PUHZ-RP35/50/60/71/100VHA3 PUHZ-RP100YHA3 Parts name Check points Thermistor (TH3) Disconnect the connector then measure the resistance with a tester. <Outdoor pipe> (At the ambient temperature 10:~30:) Thermistor (TH4) <Discharge> Normal Abnormal Thermistor (TH6) 160k"~410k"...
  • Page 68 Check method of DC fan motor (fan motor / outdoor controller circuit board) Notes · High voltage is applied to the connecter (CNF1, 2) for the fan motor. Give attention to the service. · Do not pull out the connector (CNF1, 2) for the motor with the power supply on. (It causes trouble of the outdoor controller circuit board and fan motor.) Self check...
  • Page 69 11-7. HOW TO CHECK THE COMPONENTS <Thermistor feature chart> Low temperature thermistors • Thermistor <Outdoor pipe> (TH3) • Thermistor <Outdoor 2-phase pipe> (TH6) • Thermistor <Outdoor> (TH7) • Thermistor <Outdoor pipe> (TH33) Thermistor R0 = 15k' ± 3% B constant = 3480 ± 2% =15exp{3480( 273+t –...
  • Page 70: Linear Expansion Valve

    Linear expansion valve (RP35-RP71) (1) Operation summary of the linear expansion valve • Linear expansion valve opens/closes through stepping motor after receiving the pulse signal from the outdoor controller board. • Valve position can be changed in proportion to the number of pulse signal. <Connection between the outdoor controller board and the linear expansion valve>...
  • Page 71 (RP100-RP140) Linear expansion valve (1) Operation summary of the linear expansion valve • Linear expansion valve opens/closes through stepping motor after receiving the pulse signal from the outdoor controller board. • Valve position can be changed in proportion to the number of pulse signal. <Connection between the outdoor controller board and the linear expansion valve>...
  • Page 72 (3) How to attach and detach the coil of linear expansion valve (RP35-RP71) <Composition> Linear expansion valve is separable into the main body and the coil as shown in the diagram below. Main body Coil Lead wire Stopper <How to detach the coil> Hold the lower part of the main body (shown as A) firmly so that the main body does not move and detach the coil by pulling it upward.
  • Page 73 (4) How to attach and detach the coil of linear expansion valve (RP100-RP140) <Composition> Linear expansion valve is separable into the main body and the coil as shown in the diagram below. Main body Stopper Coil Lead wire <How to detach the coil> Hold the lower part of the main body (shown as A) firmly so that the main body does not move and detach the coil by pulling it upward.
  • Page 74: Emergency Operation

    11-8. EMERGENCY OPERATION (1) When the error codes shown below are displayed on outdoor unit or microcomputer for wired remote controller or indoor unit has a failure, but no other problems are found, emergency operation will be available by setting the emergency opera- tion switch (SWE) to ON and short-circuiting the connector (CN31) on outdoor controller board.
  • Page 75 (5) Operation data during emergency operation During emergency operation, no communication is performed with the indoor unit, so the data items needed for operation are set to the following values: Operation mode Operation data Remarks COOL HEAT — Intake temperature (TH1) 20.5: —...
  • Page 76: Test Point Diagram Outdoor Controller Circuit Board

    11-9. TEST POINT DIAGRAM <CAUTION> TEST POINT1 is high voltage. Outdoor controller circuit board PUHZ-RP35VHA2 PUHZ-RP50VHA2 PUHZ-RP60VHA2 PUHZ-RP71VHA2 PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2 PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2 (TEST POINT 2) (TEST POINT 1) (Indoor/outdoor unit (voltage between pins of C6B): DC 15V (voltage between pins of C5E) connecting wire) : DC250V-380V Communication...
  • Page 77 Outdoor controller circuit board <CAUTION> TEST POINT1 is high voltage. PUHZ-RP35/50/60/71/100VHA2 PUHZ-RP100/125/140YHA2 PUHZ-RP35/50/60/71/100VHA3 PUHZ-RP100YHA3 CN51 CNDM External signal output 1 to 2: Input of low-level sound priority mode Forced defrost, • Compressor operating signal 1 to 3: Input of external contact point detect history Demand control setting •...
  • Page 78 Outdoor noise filter circuit board PUHZ-RP35VHA2 PUHZ-RP50VHA2 LI, NI Voltage of 220-240V AC is input. Connect to the earth (Connect to the terminal block(TB1)) CNAC1, CNAC2 220-240V AC (Connect to the Primary current outdoor controller (Connect to the circuit board outdoor power (CNAC)) circuit board...
  • Page 79 Outdoor noise filter circuit board PUHZ-RP35VHA2 PUHZ-RP35VHA3 PUHZ-RP50VHA2 PUHZ-RP50VHA3 LI, NI Voltage of 220-240V AC is input. Connect to the earth (Connect to the terminal block(TB1)) Connect to the earth Connect to the earth CNAC1, CNAC2 220-240V AC (Connect to the Primary current outdoor controller (Connect to the...
  • Page 80 Outdoor noise filter circuit board PUHZ-RP60VHA2 PUHZ-RP71VHA2 LI, NI Voltage of 220-240V AC is input. Connect to the earth (Connect to the terminal block(TB1)) CNAC1, CNAC2 220-240V AC (Connect to the outdoor controller circuit board (CNAC)) Primary current (Connect to the outdoor power circuit board (CN5))
  • Page 81: Puhz-Rp60Vha3 Puhz-Rp71Vha3

    Outdoor noise filter circuit board PUHZ-RP60VHA2 PUHZ-RP60VHA3 PUHZ-RP71VHA2 PUHZ-RP71VHA3 EI, E2 Connect to the earth Connect to the earth CNAC1, CNAC2 220-240V AC (Connect to the outdoor controller circuit board (CNAC)) Primary current (Connect to the outdoor power circuit board (CN5)) CN52C 52C relay signal...
  • Page 82 Outdoor noise filter circuit board PUHZ-RP100VHA2 LO, NO PUHZ-RP125VHA2 Voltage of 220-240V AC is output PUHZ-RP140VHA2 (Connect to the outdoor power circuit board (TABS, TABT)) CNAC1, CNAC2 220-240V AC (Connect to the outdoor controller circuit board (CNAC)) Primary current (Connect to the outdoor power circuit board (CN5))
  • Page 83 Outdoor noise filter circuit board PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2 PUHZ-RP100VHA3 CN52C 52C driving signal (Connect to the outdoor controller circuit board (CN52C).) LO, NO Voltage of 220-240V AC is output (Connect to the outdoor CNAC1, CNAC2 power circuit board 220-240V AC (TABS, TABT)) (Connect to the outdoor controller...
  • Page 84 Outdoor noise filter circuit board PUHZ-RP100YHA2 PUHZ-RP125YHA2 LI1, LI2, LI3, NI PUHZ-RP140YHA2 POWER SUPPLY LI1-LI2/LI-LI3/LI3-LI1 : AC380/400/415V input LI1-NI/LI2-NI/LI3-NI : AC220/230/240V input (Connect to the terminal block (TB1)) Connect to the earth CNAC1, CNAC2 AC220/230/240V (Connect to the outdoor controller circuit board (CNAC)) CNDC (Connect to the...
  • Page 85 Outdoor noise filter circuit board PUHZ-RP100YHA2 PUHZ-RP125YHA2 LI1, LI2, LI3, NI PUHZ-RP140YHA2 POWER SUPPLY PUHZ-RP100YHA3 LI1-LI2/LI-LI3/LI3-LI1 : AC380/400/415V input LI1-NI/LI2-NI/LI3-NI : AC220/230/240V input (Connect to the terminal block (TB1)) Connect to the earth Connect to the earth CNAC1, CNAC2 AC220/230/240V (Connect to the outdoor controller circuit board (CNAC))
  • Page 86 Brief Check of DIP-IPM and DIP-PFC W Usually, they are in a state of being short-circuited if they are broken. Outdoor power circuit board Measure the resistance in the following points (connectors, etc.). If they PUHZ-RP35VHA2 are short-circuited, it means that they are broken. PUHZ-RP50VHA2 1.
  • Page 87: Puhz-Rp60Vha3 Puhz-Rp71Vha3

    Brief Check of DIP-IPM and DIP-PFC W Usually, they are in a state of being short-circuited if they are broken. Outdoor power circuit board Measure the resistance in the following points (connectors, etc.). If they PUHZ-RP35VHA2 are short-circuited, it means that they are broken. PUHZ-RP50VHA2 1.
  • Page 88 Outdoor power circuit board Brief Check of POWER MODULE W Usually, they are in a state of being short-circuited if they are broken. PUHZ-RP100VHA2 Measure the resistance in the following points (connectors, etc.). PUHZ-RP100VHA2 If they are short-circuited, it means that they are broken. 1.
  • Page 89 Brief Check of POWER MODULE W Usually, they are in a state of being short-circuited if they are broken. Outdoor power circuit board Measure the resistance in the following points (connectors, etc.). PUHZ-RP100YHA2 If they are short-circuited, it means that they are broken. 1.
  • Page 90 Outdoor converter circuit board PUHZ-RP100YHA2 PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2 PUHZ-RP140YHA2 PUHZ-RP100YHA3 L1-A1 L1-IN, N-IN CK-OU Connect to the ACL1 Connect to the noise filter Connect to the CK capacitor circuit board (LO1, No) Connect to the outdoor power circuit board (CN7) L1-A2, L2-A2, L3-A2 L1-OU, L2-OU, L3-OU...
  • Page 91 Active filter module PUHZ-RP100VHA2 PUHZ-RP125VHA2 L1, L2 PUHZ-RP140VHA2 Connect to the 52C Connect to the DCL(Reactor) – Connect to the outdoor power circuit board(TABN1) Connect to the outdoor power circuit board(CNAF) : GND 2-1 : 15V DC 3-1 : Control signal 4, 5 : Not used 6-1 : Control signal Connect to the out-...
  • Page 92 Active filter module PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2 PUHZ-RP100VHA3 Connect to the outdoor power circuit board(TABP2) L1, L2 Connect to the DCL(Reactor) Non-connect Upper Lower side side Non-connect Connect to the outdoor power circuit board(TABP1) Connect to the outdoor – Connect to the outdoor power circuit Connect to the outdoor power circuit board(TABN1)
  • Page 93: Function Of Switches, Connectors And Jumpers

    11-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS (1) Function of switches Type Action by the switch operation Function Effective timing Switch switch When compressor is working Forced defrost w1 Start Normal in heating operation. w1 Abnormal history clear Clear Normal off or operating 1 2 3 4 5 6...
  • Page 94 PUHZ-RP35-140VHA2 , PUHZ-RP100-140YHA2 , PUHZ-RP35-100VHA3, PUHZ-RP100YHA3 Action by the switch operation Type of Switch Function Effective timing Switch No function — — — Power failure Auto recovery No auto recovery When power supply ON automatic recovery w2 3,4,5 No function —...
  • Page 95 Special function (a) Low-level sound priority mode (Local wiring) Unit enters into Low-level sound priority mode by external signal input setting. Inputting external signals to the outdoor unit decreases the outdoor unit operation sound 3 to 4 dB lower than that of usual. Adding a commercial timer or on-off switch contactor setting to the CNDM connector which is optional contactor for demand input located on the outdoor controller board enables to control compressor operation frequency.
  • Page 96 <Display function of inspection for outdoor unit> The blinking patterns of both LED1(green) and LED2(red) indicate the types of abnormality when it occurs. Types of abnormality can be indicated in details by connecting an optional part ‘A-Control Service Tool (PAC-SK52ST)’ to connector CNM on outdoor controller board.
  • Page 97 Indication Error Outdoor controller board Error Detailed Contents Inspection method reference code LED1 (Green) LED2 (Red) page 1Check if stop valves are open. 3 blinking 1 blinking Abnormality of shell thermostat P.49 2Check if connectors (TH4, LEV-A, and LEV-B) on outdoor controller and discharging temperature (TH4) board are not disconnected.
  • Page 98 <Outdoor unit operation monitor function> [When optional part ‘A-Control Service Tool(PAC-SK52ST)’ is connected to outdoor controller board(CNM)] Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by controlling DIP SW2 on ‘A-Control Service Tool’. Operation indicator SW2 : Indicator change of self diagnosis SW2 setting...
  • Page 99 SW2 setting Display detail Explanation for display Unit Pipe temperature / Liquid(TH3) – 40~90 – 40~90 (When the coil thermistor detects 0: or below, “–” and temperature are displayed by turns.) (Example) When -10:; 2 3 4 5 6 0.5 secs. 0.5secs.
  • Page 100 SW2 setting Display detail Explanation for display Unit Pipe temperature / Liquid(TH3) on error – 40~90 occurring (When the coil thermistor detects 0: or below, “–” – 40~90 and temperature are displayed by turns.) (Example) When –15:; 0.5 secs. 0.5secs. 2 secs.
  • Page 101 SW2 setting Display detail Explanation for display Unit The number of connected indoor units (The number of connected indoor units are dis- played.) Unit 2 3 4 5 6 Capacity setting display Displayed as an outdoor capacity code. Capacity Code Capacity Code RP35V...
  • Page 102 SW2 setting Display detail Explanation for display Unit Indoor setting temperature 17~30 17~30 2 3 4 5 6 Outdoor pipe temperature / 2-phase -39~88 (TH6) (When the temperature is 0: or less, “–” and -39~88 temperature are displayed by turns.) 2 3 4 5 6 Outdoor ambient temperature (TH7) -39~88...
  • Page 103 SW2 setting Display detail Explanation for display Unit 0~100 Capacity save (When the capacity is 100% hundreds digit, tens digit 0~100 and ones digit are displayed by turns.) When air conditioner is connected to (Example) When 100%; M-NET and capacity save mode is 0.5 secs.
  • Page 104 SW2 setting Display detail Explanation for display Unit 0~480 LEV-A opening pulse on error occurring (When it is 100 pulse or more, hundreds digit, tens 0~480 digit and ones digit are displayed by turns.) (Example) When 130 pulse; Pulse 0.5 secs. 0.5secs.
  • Page 105 SW2 setting Display detail Explanation for display Unit 0~255 Discharge superheat on error occurring (When the temperature is 100°C or more, hundreds 0~255 digit, tens digit and ones digit are displayed by turns.) (Example) When 150°C; Cooling = TH4-TH6 Heating = TH4-TH5 0.5 secs.
  • Page 106 SW2 setting Display detail Explanation for display Unit Controlling status of compressor The following code will be a help to know the operating frequency operating status of unit. • The tens digit Display Compressor operating frequency control Primary current control Secondary current control •...
  • Page 107: Function Setting

    FUNCTION SETTING 12-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be set according to necessity using the remote controller. The setting of function for each unit can only be done by the remote controller. Select function available from the table 1. (1) Functions available when setting the unit number to 00 (Select 00 referring to 4 setting the indoor unit number.) W1 The functions below are available only when the wired remote controller is used.
  • Page 108 (2) Functions available when setting the unit number to 01-03 or AL (07 in case of wireless remote controller) • When setting functions for an indoor unit in an independent system, set the unit number to 01 referring to 4 setting the indoor unit number of Operating Procedure.
  • Page 109 12-1-1. Selecting functions using the wired remote controller First, try to familiarize yourself with the flow of the function selection procedure. In this section, an example of setting the room temperature detection position is given. For actual operations, refer to steps 1 to 0 . Setting number Refrigerant address Unit number...
  • Page 110 [Operating Procedure] 1 Check the setting items provided by function selection. If settings for a mode are changed by function selection, the functions of that mode will be changed accordingly. Check all the current settings according to steps 2 to 7 , fill in the "Check" column in Table 1, then change them as necessary. For initial settings, refer to the indoor unit's installation manual. 2 Switch off the remote controller.
  • Page 111 12-1-2. Selecting functions using the wireless remote controller (Type C) Functions can be selected with the wireless remote controller. Function selection using wireless remote controller is available only for refriger- ant system with wireless function. Refrigerant address cannot be specified by the wireless remote controller. [Flow of function selection procedure] The flow of the function selection procedure is shown below.
  • Page 112 12-2. FUNCTION SELECTION OF REMOTE CONTROLLER The setting of the following remote controller functions can be changed using the remote controller function selection mode. Change the setting when needed. Item 1 Item 2 Item 3 (Setting content) 1.Change Language Language setting to display •...
  • Page 113 [Function selection flowchart] Normal display (Display when the air conditioner is not running) Setting language (English) Hold down the button and press the button for 2 seconds. Hold down the button and press the button for 2 seconds. Press the operation mode button. Press theTIMER MENU button.
  • Page 114: Monitoring The Operation Databythe Remote Controller

    MONITORING THE OPERATION DATABYTHE REMOTE CONTROLLER 13-1. HOW TO "MONITOR THE OPERATION DATA" • Turn on the [Monitoring the operation data] Example) Request code "004" Discharge temperature 69 ; Refrigerant address "00" A: Maintenance mode B: Refrigerant address C: Data display area D: Request code display area (1) Press the button for 3 seconds so that [ Maintenance mode] appears on the screen (at...
  • Page 115 13-2. REQUEST CODE LIST * Certain indoor/outdoor combinations do not have the request code function; therefore, no request codes are displayed. Description Request content Unit Remarks (Display range) Operation state Refer to 13-2-1. Detail Contents in Request Code. – Compressor-Operating current (rms) 0 –...
  • Page 116 Description Request content Unit Remarks (Display range) Indoor unit-Control state – Refer to 13-2-1.Detail Contents in Request Code. Outdoor unit-Control state – Refer to 13-2-1.Detail Contents in Request Code. Refer to 13-2-1.Detail Contents in Request Code. Compressor-Frequency control state – Outdoor unit-Fan control state Refer to 13-2-1.Detail Contents in Request Code.
  • Page 117 Description Request content Unit Remarks (Display range) Error history 1 (latest) Displays error history. (" - - " is displayed if no history is present.) Code Error history 2 (second to last) Displays error history. (" - - " is displayed if no history is present.) Code Error history 3 (third to last) Displays error history.
  • Page 118 Description Request content Unit Remarks (Display range) Indoor-Fan operating time 0 – 9999 1 hour (After filter is reset) Indoor-Total operating time 0 – 9999 10 hours (Fan motor ON time) Indoor fan output value (Sj value) 0 – 255 Fan control data –...
  • Page 119 13-2-1. Detail Contents in Request Code Example) Request code "004" Discharge temperature 69 : Refrigerant address "00" A: Maintenance mode display B: Refrigerant address C: Data display area D: Request code display area [Operation state] (Request code ": 0 ") Relay output state Power currently Data display...
  • Page 120 [Fan control state] (Request code :" 53 ") Data display Fan step correction value by heatsink temperature overheat prevention control Fan step correction value by cool condensation temperature overheat prevention control Display Correction value - (minus) – 1 [Actuator output state] (Request code :"54") Data display Actuator output state 1 Actuator output state 2...
  • Page 121 [Contact demand capacity] (Request code "61") Setting content Data display Setting Display Setting value Setting content SW7-1 SW7-2 100% [External input state] (Request code "62") Input state : Input present Data display Contact demand Silent mode Spare 1 Spare 2 Display Input state input...
  • Page 122 [Outdoor unit switch setting display (SW1 to SW10, except SW3)] Request codes: 73 to 82 0: Swich OFF 1: Swich ON 0: Swich OFF 1: Swich ON SW1, SW2, SW6, SW7 Data display Data display 00 00 00 00 00 01 00 01 00 02 00 02...
  • Page 123 [Indoor unit – Model setting information] (Request code : 162) Data display Display Model setting state Display Model setting state PSA-RP•GA, PSH-PGAH PKA-RP•FAL(2), PKH-P•FALH See the table on the right. PEAD-RP•EA(2)/GA, PEHD-P•EAH PCA-RP·GA(2), PCH-P•GAH, PLA-RP·BA(2) SEZ-KA•VA SLZ-KA•VA(L) PCA-RP•HA PKA-RP•GAL, PKH-P•GALH PLA-RP•...
  • Page 124: Easy Maintenance Function

    EASY MAINTENANCE FUNCTION Reduces maintenance work drastically. Enables you to check operation data of the indoor and outdoor units by remote controller. Furthermore, use of maintenance stable-operation control that fixes the operating frequency, allows smooth inspection, even for inverter models. Smooth Mainte- Discharge temperature 64: Conventional inspection work...
  • Page 125 Data measurement When the operation is stabilized, measure operation data as explained below. (4) Press the [TEMP] buttons ( ) to select the desired refrigerant address. [Screen (5) Select the type of data to be displayed. After selecting, go to step (6). Compressor information button MENU...
  • Page 126 14-2. GUIDE FOR OPERATION CONDITION Inspection item Result Check Points Breaker Good Retightened Enter the temperature differences between into Terminal block Outdoor Unit Good Retightened the graph given below. Indoor Unit Good Retightened Operation state is determined according to the plotted areas on (Insulation resistance) M"...
  • Page 127: Initial Settings For Refrigerant Leakage Detection Function

    14-3. INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION Remote controller button position This air conditioner (Outdoor unit) can detect refrigerant leakage which may happen during a long period of use. In order to enable the leakage detection, the following settings are required to let the unit memorize the initial condition (initial refregerant amount).
  • Page 128 3. How to start "Judgment of refrigerant leakage " mode. To know the current condition of refrigerant amount, same operation must be performed. Please repeat the same procedure 1~3 as when "Initial learning operation" for "Checking operation". 4Press CLOCK button and select the [GAS LEAK JUDGE] Refrigerant leakage Refrigerant leakage detection...
  • Page 129: Disassembly Procedure

    DISASSEMBLY PROCEDURE PUHZ-RP35, 50VHA2 /VHA3 OPERATING PROCEDURE PHOTOS 1. Removing the top panel, service panel, front panel and Photo 1 Top panel Top panel back panel fixing screws (1) Remove the top panel fixing screws (4 10), one from the right and two from the eft side, and detach the top Back panel panel.
  • Page 130 OPERATING PROCEDURE PHOTOS 3. Removing the electrical parts box Photo 5 (1) Remove the service panel. (See photo 2.) (2) Remove the top panel. (See photo 1.) Controller circuit Electrical parts box (3) Remove the front panel. (See photo 1.) board (C.B.) (4) Disconnect the indoor/outdoor connecting wire from Terminal...
  • Page 131 OPERATING PROCEDURE PHOTOS 5. Removing the thermistor <Outdoor> (TH7) Photo 7 Thermistor <Outdoor> (1) Remove the service panel. (See figure 1.) Electrical parts box (TH7) (2) Remove the top panel. (See figure 1.) (3) Disconnect the connector TH7 (red) on the controller circuit board in the electrical parts box.
  • Page 132 OPERATING PROCEDURE PHOTOS 8. Removing the 4-way valve Photo 10 (1) Remove the service panel. (See photo 2.) (2) Remove the top panel. (See photo 1.) (3) Remove the front panel. (See photo 1.) (4) Remove the back panel. (See photo 1.) (5) Remove the electrical parts box.
  • Page 133 OPERATING PROCEDURE PHOTOS 12. Removing the compressor (MC) Photo 13 (1) Remove the service panel. (See photo 2.) (2) Remove the top panel. (See photo 1.) (3) Remove the front panel. (See photo 1.) (4) Remove the back panel. (See photo 1.) (5) Remove the electrical parts box.
  • Page 134 PUHZ-RP60,71VHA2 /VHA3 OPERATING PROCEDURE PHOTOS & ILLUSTRATION Top panel fixing screws 1. Removing the service panel and top panel Figure 1 Top panel (1) Remove 3 service panel fixing screws (5 10) and slide the hook on the right downward to remove the service panel.
  • Page 135 OPERATING PROCEDURE PHOTOS 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) Photo 4 Thermistor (1) Remove the service panel. (See figure 1.) <Outdoor 2-phase pipe> (2) Remove the top panel. (See figure 1.) (TH6) Controller Electrical parts box (3) Disconnect the connectors, TH7/6 (red), on the circuit board controller circuit board in the electrical parts box.
  • Page 136 OPERATING PROCEDURE PHOTOS Photo 7 (PUHZ-RP60/71VHA2 7. Removing the 4-way valve coil (21S4), LEV coil (LEV(A), LEV(B)) and bypass valve coil (SV) LEV coil (LEV B) LEV coil (LEV A) (1) Remove the service panel. (See figure 1) (2) Remove the top panel. (See figure 1) (3) Remove the electrical parts box.
  • Page 137 OPERATING PROCEDURE PHOTOS 10. Removing the bypass valve Photo 9 (PUHZ-RP60/71VHA2 (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) Bypass valve coil LEV coil (LEV B) LEV coil (LEV A) (SV) (3) Remove the electrical parts box. (See photo 3.) (4) Remove 3 right side panel fixing screws (5 10) in the rear of the unit and remove the right side panel.
  • Page 138 OPERATING PROCEDURE PHOTOS 13. Removing the compressor (MC) Photo 12 (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) (3) Remove 2 front cover panel fixing screws (5 10) and remove the front cover panel. (See photo 3.) (4) Remove 2 back cover panel fixing screws (5 10) and remove the back cover panel.
  • Page 139 PUHZ-RP100, 125, 140VHA2 PUHZ-RP100VHA3 OPERATING PROCEDURE PHOTOS & ILLUSTRATION Figure 1 1. Removing the service panel and top panel Top panel fixing screws Top panel (1) Remove 3 service panel fixing screws (5 10) and slide the hook on the right downward to remove the service Service panel panel.
  • Page 140 OPERATING PROCEDURE PHOTOS 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) Thermistor <Outdoor Photo 4 (1) Remove the service panel. (See figure 1.) 2-phase pipe> (TH6) Electrical parts box (2) Remove the top panel. (See figure 1.) Controller circuit board (3) Disconnect the connectors, TH7/6 (red), on the (C.B.) controller circuit board in the electrical parts box.
  • Page 141 OPERATING PROCEDURE PHOTOS 7. Removing the 4-way valve coil (21S4), and LEV coil Photo 7 (LEV(A), LEV(B)) (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) LEV coil (LEV A) 4-way valve coil (21S4) [Removing the 4-way valve coil] (3) Remove 4-way valve coil fixing screw (M4...
  • Page 142 OPERATING PROCEDURE PHOTOS 10. Removing the bypass valve coil (SV) and bypass valve Photo 9 (1) Remove the service panel. (See figure 1.) Bypass valve fixing screw (2) Remove the top panel. (See figure 1.) (3) Remove 3 right side panel fixing screws (5 10) in the rear of the unit and remove the right side panel.
  • Page 143 OPERATING PROCEDURE PHOTOS 13. Removing the compressor (MC) Photo 12 (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) (3) Remove 2 front cover panel fixing screws (5 10) and remove the front cover panel. (See photo 3.) (4) Remove 2 back cover panel fixing screws (5 10) and Valve bed...
  • Page 144 PUHZ-RP100/125/140YHA2 PUHZ-RP100YHA3 OPERATING PROCEDURE PHOTOS & ILLUSTRATION Figure 1 1. Removing the service panel and top panel Top panel fixing screws Top panel (1) Remove 3 service panel fixing screws (5 10) and slide the hook on the right downward to remove the service Service panel panel.
  • Page 145 From the previous page. OPERATING PROCEDURE PHOTOS & ILLUSTRATION (6) Remove the terminal cover and disconnect the Photo 4 compressor lead wire. Electrical (7) Remove 2 electrical parts box fixing screws (4 10) and parts box detach the electrical parts box by pulling it upward. The electrical parts box is fixed with 2 hooks on the left and 1 hook on the right.
  • Page 146 PHOTOS OPERATING PROCEDURE Photo 10 5. Removing the thermistor <Outdoor 2-phase pipe> (TH6) Thermistor (1) Remove the service panel. (See figure 1.) <Outdoor 2-phase pipe> (TH6) Electrical parts box (2) Remove the top panel. (See figure 1.) (3) Disconnect the connector TH7/6 (red), on the controller circuit board in the electrical parts box.
  • Page 147 OPERATING PROCEDURE PHOTOS Photo 13 8. Removing the 4-way valve coil (21S4), and LEV coil (LEV(A), LEV(B)) (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) LEV coil (LEV A) 4-way valve coil (21S4) [Removing the 4-way valve coil] (3) Remove 4-way valve coil fixing screw (M4 (4) Remove the 4-way valve coil by sliding the coil toward you.
  • Page 148 OPERATING PROCEDURE PHOTOS Photo 15 11. Removing bypass valve coil (SV) and bypass valve Bypass valve coil (1) Remove the service panel. (See figure 1.) fixing screw (2) Remove the top panel. (See figure 1.) (3) Remove 3 right side panel fixing screws (5 10) in the rear of the unit and remove the right side panel.
  • Page 149 OPERATING PROCEDURE PHOTOS 13. Removing the reactors (ACL1, ACL2, ACL3) Photo 17 Electrical parts box (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) (3) Remove the 6 screws, screw 10), that fix the front panel and remove the front panel.
  • Page 150 OPERATING PROCEDURE PHOTOS Photo 20 14. Removing the compressor (MC) (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) (3) Remove 2 front cover panel fixing screws (5 10) and remove the front cover panel. (See photo 3.) (4) Remove 2 back cover panel fixing screws (5 10) and Valve bed...
  • Page 151: Parts List

    PARTS LIST (non-RoHS compliant) STRUCTURAL PARTS PUHZ-RP35VHA2 PUHZ-RP50VHA2 ty/set Recom- Wiring Remarks Part No. Part Name Specification mended Diagram (Drawing No.) PUHZ-RP35VHA2 Symbol PUHZ-RP50VHA2 R01 E10 691 GRILLE R01 E02 668 FRONT PANEL BASE R01 E15 686 BASE ASSY (SU00B229G35) —...
  • Page 152 STRUCTURAL PARTS PUHZ-RP60VHA2 PUHZ-RP71VHA2 Q'ty/set Recom- Wiring Remarks Part No. Part Name Specification Diagram mended (Drawing No.) PUHZ-RP60VHA2 Symbol Q'ty PUHZ-RP71VHA2 (DG12F536H10) — F.ST SCREW (5 10) R01 E01 662 SIDE PANEL (L) T7W E02 691 FAN GRILLE T7W E01 667 FRONT PANEL (BK00C143G82) —...
  • Page 153 STRUCTURAL PARTS PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2 PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2 ty/set Wiring Recom- Remarks PUHZ-RP Part No. Part Name Specification Diagram mended (Drawing No.) 100, 125, 140 Symbol VHA2 YHA2 (5 10) — F.ST SCREW (DG12F536H10) SIDE PANEL (L) FAN GRILLE FRONT PANEL (BK00C143G98) —...
  • Page 154 FUNCTIONAL AND ELECTRICAL PARTS PUHZ-RP35VHA2 PUHZ-RP50VHA2...
  • Page 155 Part numbers that are circled are not shown in the figure. ty/set Wiring Recom- Remarks Specification Part No. Part Name Diagram mended PUHZ-RP35VHA2 (Drawing No.) Symbol PUHZ-RP50VHA2 R01 E40 221 FAN MOTOR R01 E02 115 PROPELLER R01 E04 097 R01 E09 467 MUFFLER SNB130FLBH T97 420 210...
  • Page 156 FUNCTIONAL AND ELECTRICAL PARTS PUHZ-RP60VHA2 PUHZ-RP71VHA2...
  • Page 157 Part numbers that are circled are not shown in the figure. ty/set Wiring Recom- Remarks Part Name Specification Part No. PUHZ-RP Diagram mended (Drawing No.) Symbol 60/71VHA2 EHDS81B86MS1 FAN MOTOR PROPELLER (BK00B055G21) — ELECTRICAL PARTS BOX T7W E15 242 SOLENOID VALVE COIL <BYPASS VALVE> BYPASS VALVE CAPILLARY TUBE [4.0 [2.4 500mm...
  • Page 158 FUNCTIONAL AND ELECTRICAL PARTS PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2...
  • Page 159 Part numbers that are circled are not shown in the figures. ty/set Wiring Recom- PUHZ-RP Remarks Part No. Part Name Specification Diagram mended (Drawing No.) Symbol VHA2 MF1,2 FAN MOTOR EHDS81B86MS1 PROPELLER HEAT EXCHANGER SOLENOID COIL <4WAY VALVE> 21S4 4-WAY VALVE MUFFLER THERMISTOR (DISCHARGE) STOP VALVE...
  • Page 160 FUNCTIONAL AND ELECTRICAL PARTS PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2...
  • Page 161 Part numbers that are circled are not shown in the figures. ty/set Wiring Recom- PUHZ-RP Remarks Part No. Part Name Specification Diagram mended (Drawing No.) Symbol YHA2 FAN MOTOR MF1,2 EHDS81B86MS1 PROPELLER ACL1,2,3 REACTOR CHARGE PLUG THERMISTOR (DISCHARGE) COMPRESSOR Including ANV33FDBMT RUBBER MOUNT COMPRESSOR...
  • Page 162: Rohs Parts List

    RoHS PARTS LIST FUNCTIONAL AND ELECTRICAL PARTS PUHZ-RP35VHA2 PUHZ-RP35VHA2 PUHZ-RP35VHA3 PUHZ-RP50VHA2 PUHZ-RP50VHA2 PUHZ-RP50VHA3...
  • Page 163 Part numbers that are circled are not shown in the figure. ty/set Wiring Recom- Remarks Part No. Part Name Specification PUHZ-RP35,50 Diagram mended (Drawing No.) Symbol VHA2 VHA2 VHA3 FAN MOTOR PROPELLER FAN MUFFLER T7W E07 467 MUFFLER COMPRESSOR SNB130FLBH Including COMPRESSOR SNB130FGCH...
  • Page 164 FUNCTIONAL AND ELECTRICAL PARTS PUHZ-RP60VHA2 PUHZ-RP60VHA2 PUHZ-RP71VHA2 PUHZ-RP71VHA2...
  • Page 165 Part numbers that are circled are not shown in the figure. ty/set Wiring Recom- Remarks PUHZ-RP60,71 Part No. Part Name Specification Diagram mended (Drawing No.) Symbol VHA2 VHA2 EHDS81B86MS1 FAN MOTOR PROPELLER FAN (BK00B055G21) — ELECTRICAL PARTS BOX T7W E15 242 SOLENOID VALVE COIL <BYPASS VALVE>...
  • Page 166: Puhz-Rp60Vha3 Puhz-Rp71Vha3

    FUNCTIONAL AND ELECTRICAL PARTS PUHZ-RP60VHA3 PUHZ-RP71VHA3 6 7 8 9 10...
  • Page 167 Part numbers that are circled are not shown in the figure. Q'ty/set Wiring Recom- Remarks Part No. Part Name Specification PUHZ-RP60, 71 Diagram mended (Drawing No.) Symbol Q'ty VHA3 EHDS81B86MS1 T7W E27 763 FAN MOTOR PROPELLER FAN T7W E07 467 MUFFLER BYPASS VALVE THERMISTOR (DISCHARGE)
  • Page 168 FUNCTIONAL AND ELECTRICAL PARTS PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2...
  • Page 169 Part numbers that are circled are not shown in the figures. ty/set Wiring Recom- PUHZ-RP Remarks Part No. Part Name Specification Diagram mended (Drawing No.) Symbol VHA2 MF1,2 FAN MOTOR EHDS81B86MS1 PROPELLER FAN HEAT EXCHANGER 21S4 T7W E30 242 SOLENOID COIL <FOUR-WAY VALVE> 4-WAY VALVE MUFFLER THERMISTOR (DISCHARGE)
  • Page 170 FUNCTIONAL AND ELECTRICAL PARTS PUHZ-RP100VHA2 PUHZ-RP100VHA3 PUHZ-RP125VHA2 PUHZ-RP140VHA2...
  • Page 171 Part numbers that are circled are not shown in the figure. ty/set PUHZ-RP Wiring Recom- Remarks Part No. Part Name Specification Diagram mended 125,140 (Drawing No.) Symbol VHA3 VHA2 MF1,2 FAN MOTOR EHDS81B86MS1 MF1,2 T7W E27 763 FAN MOTOR PROPELLER FAN HEAT EXCHANGER 21S4 T7W E29 242...
  • Page 172 FUNCTIONAL AND ELECTRICAL PARTS PUHZ-RP100YHA2 PUHZ-RP100YHA3 PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2 PUHZ-RP140YHA2...
  • Page 173 Part numbers that are circled are not shown in the figures. ty/set Wiring Recom- PUHZ-RP Remarks Part No. Part Name Specification Diagram mended (Drawing No.) 100 125,140 100 125,140 Symbol YHA2 YHA2 YHA3 FAN MOTOR MF1,2 EHDS81B86MS1 FAN MOTOR MF1,2 PROPELLER FAN ACL1,2,3 REACTOR...
  • Page 174 STRUCTURAL AND ELECTRICAL PARTS PUHZ-RP35VHA2 PUHZ-RP35VHA2 PUHZ-RP35VHA3 PUHZ-RP50VHA2 PUHZ-RP50VHA2 PUHZ-RP50VHA3 ty/set Recom- Wiring Remarks Part No. Part Name Specification PUHZ-RP35,50 mended Diagram (Drawing No.) Symbol VHA2 VHA2 VHA3 R01 E30 691 GRILLE R01 E09 668 FRONT PANEL R01 E29 686 BASE ASSY (SU00B229G35) —...
  • Page 175 STRUCTURAL PARTS PUHZ-RP60/71VHA2 PUHZ-RP60/71VHA2 PUHZ-RP60/71VHA3 Q'ty/set Recom- Wiring Remarks Part No. Part Name Specification PUHZ-RP60, 71 mended Diagram (Drawing No.) Q'ty Symbol VHA2 VHA3 — F.ST SCREW (5o10) (DG12F536H10) R01 E16 662 SIDE PANEL (L) T7W E03 691 FAN GRILLE T7W E05 667 FRONT PANEL —...
  • Page 176 STRUCTURAL PARTS PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2 PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2 ty/set Wiring Recom- Remarks PUHZ-RP Diagram mended Part No. Part Name Specification 100, 125, 140 (Drawing No.) Symbol VHA2 YHA2 (5 10) — F.ST SCREW (DG12F536H10) SIDE PANEL (L) FAN GRILLE FRONT PANEL (BK00C143G91) —...
  • Page 177 STRUCTURAL PARTS PUHZ-RP100VHA2 PUHZ-RP125VHA2 PUHZ-RP140VHA2 PUHZ-RP100YHA2 PUHZ-RP125YHA2 PUHZ-RP140YHA2 PUHZ-RP100VHA3 PUHZ-RP100YHA3 ty/set Wiring Recom- Remarks Part No. Part Name Specification PUHZ-RP100,125,140 Diagram mended (Drawing No.) Symbol YHA2 VHA2 VHA3 YHA3 (5 10) — F.ST SCREW (DG12F536H10) SIDE PANEL (L) FAN GRILLE FRONT PANEL (BK00C143G98) —...
  • Page 178 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN CCopyright 2006 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Feb. 2008 No.OC374 REVISED EDITION-C PDF 8 Distributed in May 2007 No.OC374 REVISED EDITION-B PDF 9 Distributed in Jul. 2006 No.OC374 REVISED EDITION-A PDF 8 New publication, effective Feb.