Mitsubishi Electric Mr.Slim PUHZ-RP200YHA Service Manual
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Mitsubishi Electric Mr.Slim PUHZ-RP200YHA Service Manual

Outdoor unit split-type, heat pump air conditioners
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See also: Technical Data Book , Installation Manual
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SERVICE MANUAL

R410A
Outdoor unit
[model names]
PUHZ-RP200YHA
PUHZ-RP250YHA
[Service Ref.]
PUHZ-RP200YHA
PUHZ-RP200YHA
PUHZ-RP250YHA
PUHZ-RP250YHA
CONTENTS
1. TECHNICAL CHANGES ······································2
2. REFERENCE MANUAL·······································2
3. SAFETY PRECAUTION·······································3
4. FEATURES···························································7
5. SPECIFICATIONS················································8
6. DATA ····································································9
7. OUTLINES AND DIMENSIONS ·························12
8. WIRING DIAGRAM ············································13
9. WIRING SPECIFICATIONS ·······························14
11. REFRIGERANT SYSTEM DIAGRAM ···················19
12. TROUBLESHOOTING········································21
13. FUNCTION SETTING·········································70
14. EASY MAINTENANCE FUNCTION ···················76
16. DISASSEMBLY PROCEDURE ··························89
Model name
17. PARTS LIST ·······················································97
indication
18. RoHS PARTS LIST ··········································103
PUHZ-RP200YHA
PUHZ-RP200YHA
1
PUHZ-RP250YHA
PUHZ-RP250YHA
1
Back to Index
July 2006
No.OC338
REVISED EDITION-B
Revision:
· RoHS PARTS LIST is added.
· Some descriptions have been
modified.
· Please void OC338 REVISED
1
EDITION-A.
NOTE:
• This manual describes only
1
service data of the outdoor
units.
• RoHS compliant products
have <G> mark on the
spec name plate.
• For servicing of RoHS
compliant products, refer to
the RoHS Parts List.

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Summary of Contents for Mitsubishi Electric Mr.Slim PUHZ-RP200YHA

  • Page 1: Table Of Contents

    No.OC338 REVISED EDITION-B SERVICE MANUAL R410A Outdoor unit Revision: [model names] [Service Ref.] · RoHS PARTS LIST is added. · Some descriptions have been PUHZ-RP200YHA modified. PUHZ-RP200YHA PUHZ-RP200YHA · Please void OC338 REVISED EDITION-A. PUHZ-RP250YHA PUHZ-RP250YHA NOTE: PUHZ-RP250YHA • This manual describes only service data of the outdoor units.

  • Page 2: Technical Changes

    TECHNICAL CHANGES PUHZ-RP200YHA PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP250YHA The parts below have been changed. • 4-WAY VALVE AND COIL(21S4) • BYPASS VALVE AND COIL(SV) REFERENCE MANUAL 2-1. INDOOR UNIT’S SERVICE MANUAL Service Model name Service Ref. Manual No. PLA-RP35/50/60/71AA PLA-RP35/50/60/71AA.UK OC335 PLA-RP100/125/140AA2.UK...

  • Page 3: Safety Precaution

    SAFETY PRECAUTION 3-1. 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 4 [1] Cautions for service (1) Perform service after collecting the refrigerant left in unit completely. (2) Do not release refrigerant in the air. (3) After completing service, charge the cycle with specified amount of refrigerant. (4) When performing service, install a filter drier simultaneously. Be sure to use a filter drier for new refrigerant.
  • Page 5 3-2. CHANGED POINT • Precautions when reusing existing R22 refrigerant pipes (1) Flowchart Measure the existing pipe thickness and check for damage. The existing pipe thickness meets specifi- The existing pipe thickness does not meet cations and the pipes are not damaged. specifications or the pipes are damaged.
  • Page 6 (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 7: Features

    Synchronized triple 33:33:33 MSDT-111R-E Synchronized quadruple 25:25:25:25 MSDF-1111R-E 4-2 FEATURES PUHZ-RP200YHA PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP250YHA CHARGELESS SYSTEM PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT. (Max.30m) The refrigerant circuit with LEV(Linear Expansion Valve) and accumulator always control the optimal refrigerant level regardless of the length (30m max.

  • Page 8: Specifications

    SPECIFICATIONS PUHZ-RP200YHA PUHZ-RP250YHA Service Ref. PUHZ-RP200YHA PUHZ-RP250YHA Cooling Heating Cooling Heating Mode Btu/h 64,800 76,400 75,000 92,100 Capacity 19.0(10.0~22.4) 22.4(10.0~25.0) 22.0(12.5~28.0) 27.0(15.7~31.5) Power supply (phase, cycle, voltage) 3-ph, 50Hz, 400V (4wires) Running current 10.0 10.4 11.5 12.4 Max. current External finish Munsell 3Y 7.8/1.1...

  • Page 9: Data

    DATA 6-1. ELECTRICAL PARTS SPECIFICATIONS Outdoor unit PUHZ-RP200YHA PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP250YHA Parts name FUSE 250V 15A (FUSE1,2) FUSE 250V 6.3A (F 3,4) Solenoid Valve STF0731Z VT60100 (Four-way Valve) Solenoid Valve Coil STF AC220~240V LB64 AC220~240V (Four-way Valve) (BG50T388) (DM50G461) 21S4...

  • Page 10: Noise Criterion Curves

    Compressor model 0.72 Winding 0.72 Resistance ( " ) 0.72 6-3. NOISE CRITERION CURVES MICROPHONE UNIT GROUND SPL(dB) SPL(dB) MODE LINE MODE LINE PUHZ-RP200YHA PUHZ-RP250YHA COOLING 55.0 COOLING 58.0 HEATING 56.0 PUHZ-RP250YHA HEATING 58.0 PUHZ-RP200YHA NC-70 NC-70 NC-60 NC-60 NC-50...

  • Page 11: Standard Operation Data

    Cooling Heating PEH-RP200MYA PEH-RP250MYA Indoor unit Phase, Hz 3, 50 3, 50 Volts Input 0.65 0.94 Current 1.12 1.64 PUHZ-RP200YHA PUHZ-RP250YHA Outdoor unit PUHZ-RP250YHA PUHZ-RP200YHA Phase, Hz 3, 50 3, 50 Volts Current 10.63 10.15 12.01 11.98 Discharge pressure 2.81 2.59...

  • Page 12: Outlines And Dimensions

    OUTLINES AND DIMENSIONS PUHZ-RP200YHA PUHZ-RP200YHA Unit : mm PUHZ-RP250YHA PUHZ-RP250YHA...

  • Page 13: Wiring Diagram

    WIRING DIAGRAM PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP200YHA PUHZ-RP250YHA 1 MODEL SELECT SYMBOL NAME MODEL SW10 Terminal Block (Power Supply) Terminal Block (Indoor/Outdoor) Motor Compressor RP200Y Fan Motor 1 2 3 4 5 6 21S4 Solenoid Valve (Four-Way Valve) Solenoid Valve (Bypass Valve)

  • Page 14: Wiring Specifications

    WIRING SPECIFICATIONS WIRING SPECIFICATIONS FOR 220V-240V 50Hz (INDOOR - OUTDOOR CONNECTING CABLE) The cable shall not be lighter than design 245 IEC or 227 IEC. When cable length is 30m or more. Use one cable for S1 and S2 and another for S3 as shown in the picture. wire size : cable length 50m : 4mm cable length 80m : 6mm...

  • Page 15: Specifications For Electrical Work

    SPECIFICATIONS FOR ELECTRICAL WORK 10-1. FIELD ELECTRICAL WIRING (POWER WIRING SPECIFICATIONS) Indoor unit model RP200, 250 Phase 3N~(3ph 4-wires), 50Hz, Outdoor unit 380-400-415V Frequency & Voltage Power supply Max. Permissive System Impedance (" ) 0.25 Outdoor unit input capacity Main switch (Breaker) 4 o Min.

  • Page 16: Separate Indoor Unit/ Outdoor Unit Power Supplies

    10-2. 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 17: M-Net Wiring Method

    10-3. 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 18 M-NET wiring M-NET (1) Use 2-core x 1.25mm shield wire for electric wires. terminal Ground (Excluding the case connecting to system controller.) 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 19: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM PUHZ-RP200YHA PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP250YHA Refrigerant flow in cooling Refrigerant flow in heating High pressure switch 63H Charge plug 4-way valve (High pressure) Thermistor TH6 Stop valve (with service port) (Outdoor 2-phase pipe) Heat exchanger Refrigerant GAS pipe...
  • Page 20 Refrigerant collecting (pump down) Perform the following procedures to collect the refrigerant when moving the indoor unit or the outdoor unit. 1 Before collecting the refrigerant, first make sure that the all of the SW5 DIP switches 4 As the unit automatically stops after two or three minutes of refrigerant collecting operation (LED1 if not lit and LED2 is lit), be sure to quickly for function changes on the control board of the outdoor unit are set to OFF.

  • Page 21: Troubleshooting

    TROUBLESHOOTING 12-1. 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 inferior phenomenon is reoccurring at service, are sum- marized in the table below.
  • Page 22 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 23 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 24 12-3. HOW TO PRECEED "SELF-DIAGNOSIS" 12-3-1. 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 25: Remote Controller Diagnosis

    When the error history is reset, the display will look like the one shown below. Press the button twice within three 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 flash.
  • Page 26 12-3-4. 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 27 • 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 28: Self-Diagnosis Action Table

    12-4. 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> Error Code Meaning of error code and detection method Judgment and action Case 1 No voltage is supplied to terminal 1 Check following items.
  • Page 29 Error Code Meaning of error code and detection method Case Judgment and action 1 Contact failure or mis-wiring of 1 Check disconnection or looseness or polarity Indoor/outdoor unit connector indoor/outdoor unit connecting of indoor/outdoor unit connecting wire of mis-wiring, excessive number of units wire.
  • Page 30 <Abnormalities detected while unit is operating> <Abnormalities detected while unit is operating> Error Code Meaning of error code and detection method Judgment and action Case Abnormal high pressure (High-pressure 1 Short cycle of indoor unit. 1~6Check indoor unit and repair defectives. 2 Clogged filter of indoor unit.
  • Page 31 Error Code Meaning of error code and detection method Judgment and action 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. Check breaking of the lead wire for the outdoor controller circuit Abnormal if open (3: or less) or short...
  • Page 32 Error Code Meaning of error code and detection method Judgment and action Case 1 Decrease of power supply voltage. 1 Check the facility of power supply. Abnormality such as overvoltage or voltage shortage and abnormal 2 Defective 52C drive circuit of 2 Replace outdoor power circuit board.
  • Page 33 (Note) Refer to indoor unit’s service manual for error code E0~E7. Error Code Meaning of error code and detection method Judgment and action Case Indoor/outdoor unit communication 1 Contact failure of indoor/out- 1 Check disconnection or looseness of indoor/ door unit connecting wire. error (Signal receiving error) outdoor unit connecting wire of indoor or out- 2 Defective communication circuit...
  • Page 34 Error Code Meaning of error code and detection method Judgment and action Case 1 Slight temperature difference Abnormality of pipe temperature 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-...
  • Page 35 Error Code Meaning of error code and detection method Case Judgment and action 1 Data of transmission proces- Communication error with communica- Shut of the power supply of outdoor unit and 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 two minutes or more, and...
  • Page 36 From the previous page. Error Code Meaning of error code and detection method Case Judgment and action 1 During group operation with Same as mentioned in “A7” of the previous 4. If displayed address or attribute is remote controller, indoor unit of multi- refrigerant page.

  • Page 37: Troubleshooting By Inferior Phenomena

    Error Code Meaning of error code and detection method Case Judgment and action 1 Transmitting condition is 1 Check transmission wave form or noise on M-NET•NO RESPONSE Abnormal if a massage was transmitted repeated fault because of transmission wire. noise and the like. 2 Shut off the power supply of outdoor unit and and there were reply (ACK) that massage 2 Extension of transmission wire...
  • Page 38 Phenomena Factor Countermeasure 5. When operating by the wireless 1No operation for 2 minutes at most after the power 1Normal operation. remote controller, beep sound is supply ON. heard, however, unit does not start 2Hand-held remote controller operation is prohibited. 2Normal operation.
  • Page 39 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 40: 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 41 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 42 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 43 • 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 44 Phone Calls From Customers How to Respondm 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 45 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 46 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 47 12-6. HOW TO CHECK THE PARTS PUHZ-RP200YHA PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP250YHA Parts name Check points Disconnect the connector then measure the resistance using a tester. Thermistor (TH3, TH32) (Surrounding temperature 10:~30:) <Outdoor pipe> Normal Abnormal Thermistor (TH4) <Discharge> 160k"~410k" Thermistor (TH6)
  • Page 48 12-7. HOW TO CHECK THE COMPONENTS <Thermistor feature chart> Low temperature thermistors • Thermistor <Outdoor pipe> (TH3, TH32) • Thermistor <Outdoor 2-phase pipe> (TH6) • Thermistor <Outdoor> (TH7) Thermistor R0 = 15k' ± 3% B constant = 3480 ± 2% =15exp{3480( 273+t –...

  • Page 49: Linear Expansion Valve

    Linear expansion valve (1) Operation summary of the linear expansion valve. • Linear expansion valve open/close through stepping motor after receiving the pulse signal from the outdoor controller circuit board. • Valve position can be changed in proportion to the number of pulse signal. <Connection between the indoor controller circuit board and the linear expansion valve>...
  • Page 50 (3) How to attach and detach the coil of linear expansion valve <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 51: Emergency Operation

    12-8. 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 circuit board.
  • Page 52 (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: Indoor fluid pipe temperature (TH2) Indoor 2-phase pipe temperature (TH5)

  • Page 53: Test Point Diagram Outdoor Controller Circuit Board

    12-9. TEST POINT DIAGRAM CN332 Outdoor controller circuit board Power supply for outdoor PUHZ-RP200YHA PUHZ-RP200YHA FAN controller circuit PUHZ-RP250YHA PUHZ-RP250YHA board (CN2) 1—2 : 18VDC High pressure switch [2: – 1: + ] CNDC (Indoor/outdoor unit 310V~340V DC connecting wire)
  • Page 54 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-RP200YHA If they are short-circuited, it means that they are broken. PUHZ-RP250YHA 1. Check of POWER MODULE 1.Check of DIODE circuit...
  • Page 55 Outdoor Noise filter circuit board PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP200YHA LI1, LI2, LI3, NI PUHZ-RP250YHA 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 out-...
  • Page 56 Outdoor Fan controller circuit board PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP200YHA PUHZ-RP250YHA TAB-U, TAB-V, TAB-W (RED) (WHITE)(BLACK) Connect to the Fan motor (MF) Voltage among phases : 20V-380V AC Power supply from outdoor controller Control signal from outdoor controller circuit board (CN332) circuit board (CN331)

  • Page 57: Function Of Switches, Connectors And Jumpers

    12-10. 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 Compulsory defrosting Start Normal in heating operation. w Abnormal history clear Clear Normal off or operating 1 2 3 4 5 6 1 2 3 4 5 6...
  • Page 58 (2) Function of connectors Action by the switch operation Types Connector Function Effective timing Short Open When power supply ON Connector CN31 Emergency operation Start Normal SW6-1 SW6-2 SW6-3 SW6-4 SW6-5 Model select SW6-6 SW8-1 SW10-1 SW10 SW10-2 W 1 As for SW8, see also 12-10 (1) Function of switches, as SW8 sets the replacement operation as well. Special function (a) Low-level sound priority mode (Local wiring) Unit enters into Low-level sound priority mode by external signal input setting.
  • Page 59 <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 circuit board.
  • Page 60 Indication Error Outdoor controller circuit board Detailed Error 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.30 2Check if connectors (TH4, LEV-A) on outdoor controller circuit board are and discharging temperature (TH4) not disconnected.
  • Page 61 <Outdoor unit operation monitor function> [When option part ‘A-Control Service Tool(PAC-SK52ST)’ is connected to outdoor controller circuit board(CNM)] Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by control- ling DIP SW2 on ‘A-Control Service Tool’. Operation indicator SW2 : Indicator change of self diagnosis SW2 setting...
  • Page 62 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) 2 3 4 5 6 When –10:; 0.5 secs. 0.5 secs.
  • Page 63 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. 0.5 secs. 2 secs. 2 3 4 5 6 Compressor temperature (TH4) or 3~217...
  • Page 64 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 RP200Y Code display...
  • Page 65 SW2 setting Display detail Explanation for display Unit Indoor setting temperature 17~30 17~30 2 3 4 5 6 Outdoor pipe temperature / Cond./ – 39~88 Eva. (TH6) (When the temperature is 0: or less, “–” and – 39~88 temperature are displayed by turns.) 2 3 4 5 6 Outdoor outside temperature (TH7) –...
  • Page 66 SW2 setting Display detail Explanation for display Unit 0~100 Capacity save (When the capacity is 100% hundreds digit, tens digit 0~255 and ones digit are displayed by turns.) When air conditioner is connected to (Example) M-NET and capacity save mode is When 100%;...
  • Page 67 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) Pulse When 130 pulse; 0.5 secs. 0.5 secs.
  • Page 68 SW2 setting Display detail Explanation for display Unit 0~255 Discharge super heat on error occurring (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by 0~255 turns.) Cooling = TH4-TH6 (Example) When 150°C; 0.5 secs. 0.5 secs.
  • Page 69 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 70: Function Setting

    FUNCTION SETTING 13-1. 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.The functions are not available for floor standing models.
  • Page 71 13-1-1. 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 72 [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, and then change them as necessary. For factory settings, refer to the indoor unit's installation manual. 2 Switch off the remote controller.
  • Page 73 13-1-2. 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 74 13-2. 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 75 Flowchart of Function Setting Setting language (English) Normal display (Display when the air condition is not running) 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 the TIMER MENU button.

  • Page 76: 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 77 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 78 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 79: Monitoring The Operation Databythe Remote Controller

    MONITORING THE OPERATION DATABYTHE REMOTE CONTROLLER 15-1. HOW TO "MONITOR THE OPERATION DATA" • Turn on the [Monitoring the operation data] Example) Request code "004" Discharge temperature 69 ; Refrigerant address "00" B: Refrigerant address C: Data display area D: Request code display area (1) Press the button for three seconds so that [Maintenance mode] appears on the screen (at TEST...
  • Page 80 15-2. 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 15-2-1. Detail Contents in Request Code. – Compressor-Operating current (rms) 0 –...
  • Page 81 Description Request content Unit Remarks (Display range) Indoor unit-Control state – Refer to 15-2-1.Detail Contents in Request Code. Outdoor unit-Control state – Refer to 15-2-1.Detail Contents in Request Code. Refer to 15-2-1.Detail Contents in Request Code. Compressor-Frequency control state – Outdoor unit-Fan control state Refer to 15-2-1.Detail Contents in Request Code.
  • Page 82 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 83 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 84 15-2-1. Detail Contents in Request Code Example) Request code "004" Discharge temperature 69 : Refrigerant address "00" B: Refrigerant address C: Data display area D: Request code display area [Operation state] (Request code ": 0 ") Relay output state Power currently Data display Display Compressor...
  • Page 85 [Fan control state] (Request code :" 53 ") Data display Fan step correction value by heat sink 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 86 [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 87 [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 88 [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 SEZ-KA•VA SLZ-KA•VA(L) PCA-RP• PEH-RP•MYA PKA-RP•GAL, PKH-P•GALH PLA-RP•...

  • Page 89: Disassembly Procedure

    DISASSEMBLY PROCEDURE PUHZ-RP200YHA PUHZ-RP250YHA w When servicing, pay careful attention in removing heavy parts. w Collect the refrigerant before you service the refrigerant system. PUHZ-RP200YHA PUHZ-RP250YHA w When brazing, make sure to apply the non-oxidizing braze. OPERATING PROCEDURE PHOTOS 1. Removing the service panel...
  • Page 90 OPERATING PROCEDURE PHOTOS 4. Removing the fan motor Photo 3 (1) Remove Fan guard • 14 fan guard fixing screws (5o15) (see photo 3). • Fan guard by sliding it upward. • Cap by pulling it upward (see photo 4). •...
  • Page 91 OPERATING PROCEDURE PHOTOS 5. Removing the electrical parts box Electrical parts box Photo 6 fixing screw (1) Remove • Service panel. • Waterproof sheet for the electrical parts. (2) Disconnect Outdoor • Power wire from TB1, and the indoor / outdoor connecting Controller wire from TB2 (see photo 6).
  • Page 92 OPERATING PROCEDURE PHOTOS 8. Removing the thermistor <Discharge> Photo 8 (1) Remove the service panel. Thermistor Bypass solenoid (2) Disconnect the connector TH4 (2P, white) from the controller <Discharge> valve circuit board. (TH4) (3) Loosen all the clamps for the lead wire (see photo 7). (4) Pull out the thermistor (TH4) from the sensor holder mounted on the compressor discharging pipe (see photo 8).
  • Page 93 OPERATING PROCEDURE PHOTOS 10. Removing the 4-way solenoid valve Photo 10 Bypass solenoid Thermistor (1) Remove valve <Discharge> • Service panel. • 3 cover panel fixing screws (5o10). • Cover panel (see photo 6). • 4-way solenoid valve coil (see photo 8, 9). •...
  • Page 94 OPERATING PROCEDURE PHOTOS & ILLUSTRATION 12. Removing the bypass solenoid valve (1) Remove • Service panel • 3 cover panel fixing screws (5o10). • Cover panel (see photo 6). • Bypass solenoid valve coil (see photo 9). • 2 valve bed support fixing screws (5o10), then valve bed support (see photo 9).
  • Page 95 OPERATING PROCEDURE PHOTOS & ILLUSTRATION 14. Removing the reactor Photo 13 (1) Remove screws • Service panel • 2 screws (4o8) that hold the terminal block fixing metal plate in front of the electrical parts box, then slightly pull the plate towards you.
  • Page 96 OPERATING PROCEDURE PHOTOS Photo 16 16. Removing the accumulator (1) Remove Fan motor • Service panel (see photo 1). • Electrical parts box (see photo 6). • 2 electrical parts box leg fixing screws (5o10), then electrical parts box legs (see photo 6). •...

  • Page 97: Parts List

    PARTS LIST(non-RoHS compliant) ELECTRICAL PARTS PUHZ-RP200YHA PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP250YHA Part number that is circled is not shown in the figures. ty/set Price Recom- Wiring Remarks Part No. Part Name Specification PUHZ-RP200/250 Diagram mended (Drawing No.) Symbol Unit Amount T7W E27 315 CONTROLLER CIRCUIT BOARD C.B.
  • Page 98 STRUCTURAL PARTS PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP200YHA PUHZ-RP250YHA...
  • Page 99 Part numbers that are circled are not shown in the figures. ty/set Price Recom- Wiring Remarks Part No. Part Name Specification PUHZ-RP200/250 Diagram mended (Drawing No.) Symbol Unit Amount R01 E01 675 FAN GUARD R01 E05 662 SIDE PANEL (L) R01 E06 668 FRONT PANEL R01 E05 667...
  • Page 100 FUNCTIONAL PARTS PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP200YHA PUHZ-RP250YHA...
  • Page 101 Part numbers that are circled are not shown in the figures. ty/set Price Wiring Recom- PUHZ-RP Remarks Part No. Part Name Specification mended Diagram 200 250 200 250 (Drawing No.) Symbol Unit Amount T97 410 741 COMPRESSOR ANV47FFBMT R01 E20 242 LINEAR EXPANSION VALVE COIL R01 E59 401 LINEAR EXPANSION VALVE...
  • Page 102 FAN PARTS PUHZ-RP200YHA PUHZ-RP250YHA PUHZ-RP200YHA PUHZ-RP250YHA ty/set Price Recom- Wiring Remarks Part No. Part Name Specification PUHZ-RP200/250 Diagram mended (Drawing No.) Symbol Unit Amount R01 E01 122 MOTOR CAP Nuto1,washero2 R01 E05 097 NUT M16 in a set (BG02U187H03) —...

  • Page 103: Rohs Parts List

    RoHS PARTS LIST ELECTRICAL PARTS PUHZ-RP200YHA PUHZ-RP250YHA Part number that is circled is not shown in the figures. ty/set Price Wiring Recom- Remarks Part No. Part Name Specification mended Diagram PUHZ-RP200/ (Drawing No.) Symbol Unit Amount 250YHA C.B. T7W E45 315 CONTROLLER CIRCUIT BOARD —...
  • Page 104 STRUCTURAL PARTS PUHZ-RP200YHA PUHZ-RP250YHA...
  • Page 105 Part numbers that are circled are not shown in the figures. Price ty/set Recom- Wiring Remarks Part No. Part Name Specification Diagram mended (Drawing No.) PUHZ-RP200/ Symbol Unit Amount 250YHA R01 E02 675 FAN GUARD R01 E17 662 SIDE PANEL (L) R01 E10 668 FRONT PANEL R01 E15 667...
  • Page 106 FUNCTIONAL PARTS PUHZ-RP200YHA PUHZ-RP250YHA...
  • Page 107 Part numbers that are circled are not shown in the figures. ty/set Price Wiring Recom- Remarks Specification PUHZ-RP·YHA Part No. Part Name mended Diagram (Drawing No.) Symbol Unit Amount T97 415 741 COMPRESSOR ANV47FFBMT R01 E35 242 LINEAR EXPANSION VALVE COIL R01 E80 401 LINEAR EXPANSION VALVE R01 E25 413...
  • Page 108 R01 E09 115 PROPELLER HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN CCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Jul. 2006 No.OC338 REVISED EDITION-B PDF 8 Distributed in Feb. 2006 No.OC338 REVISED EDITION-A PDF 9 New publication, effective Jul.

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