Mitsubishi Electric PU-P71VHA Service Manual
  1. Manuals
  2. Brands
  3. Mitsubishi Electric Manuals
  4. Air Conditioner
  5. PU-P71VHA
  6. Service manual

Mitsubishi Electric PU-P71VHA Service Manual

Split-type heat pump air conditioners
Hide thumbs Also See for PU-P71VHA:
Table of Contents

Advertisement

Quick Links

See also: Service Manual , Technical Data Book
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS

SERVICE MANUAL

R410A

Outdoor unit

[model names]
PU-P71VHA
PU-P71YHA
PU-P100VHA
PU-P100YHA
PU-P125YHA
PU-P140YHA
PUH-P71VHA
PUH-P71YHA
PUH-P100VHA
PUH-P100YHA
PUH-P125YHA
PUH-P140YHA
PU-P71VHA.UK
PU-P71YHA.UK
PU-P100VHA.UK
PU-P100YHA.UK
[
Service Ref.]
PU-P71VHA.UK
PU-P71YHA.UK
PU-P100VHA.UK
PU-P100YHA.UK
PU-P125YHA.UK
PU-P140YHA.UK
PUH-P71VHA.UK
PUH-P71YHA.UK
PUH-P100VHA.UK
PUH-P100YHA.UK
PUH-P125YHA.UK
PUH-P140YHA.UK
PUH-P71VHA.UK
PUH-P71YHA.UK
PUH-P100VHA.UK
PUH-P100YHA.UK
REVISED EDITION-B
Revision:
• RoHS PARTS LIST is added.
• Some descriptions have
been modified.
• Please void OC379
REVISED EDITION-A.
Note:
• This manual describes only
service data of the outdoor
units.
• RoHS compliant products
have <G> mark on the spec
name plate.
• For servicing of RoHS com-
pliant products, refer to the
RoHS Parts List.
CONTENTS
1. REFERENCE MANUAL··································2
2. SAFETY PRECAUTION··································3
3. FEATURES ·····················································6
4. SPECIFICATIONS···········································7
5. DATA ·······························································9
6. OUTLINES AND DIMENSIONS····················14
7. WIRING DIAGRAM ·······································16
8. WIRING SPECIFICATIONS ··························18
9. REFRIGERANT SYSTEM DIAGRAM··············23
10. TROUBLESHOOTING ··································24
11. FUNCTION SETTING ····································60
12. DISASSEMBLY PROCEDURE ·····················66
13. PARTS LIST ··················································75
14. RoHS PARTS LIST ·······································81
Back to Index
July 2006
No.OC379

Advertisement

Table of Contents
loading

Related Manuals for Mitsubishi Electric PU-P71VHA

Summary of Contents for Mitsubishi Electric PU-P71VHA

  • Page 1: Table Of Contents

    SPLIT-TYPE, AIR CONDITIONERS July 2006 No.OC379 REVISED EDITION-B SERVICE MANUAL R410A Outdoor unit [model names] Service Ref.] Revision: PU-P71VHA.UK PU-P71VHA • RoHS PARTS LIST is added. PU-P71YHA.UK • Some descriptions have PU-P71YHA been modified. PU-P100VHA.UK PU-P100VHA PU-P100YHA.UK • Please void OC379 PU-P100YHA REVISED EDITION-A.

  • Page 2: Reference Manual

    Revision : "13. PARTS LIST " have been modified on page 79. Page Revise point Service Ref. Incorrect Correct PUH-P125YHA.UK FUNCTIONAL PARTS PUH-P140YHA.UK No.30 S70 FY0 315 S70 FY2 315 CONTROLLER CIRCUIT PU-P125YHA.UK PU-P140YHA.UK BOARD REFERENCE MANUAL 1-1. INDOOR UNIT’S SERVICE MANUAL Service Model name Service Ref.

  • Page 3: Safety Precaution

    SAFETY PRECAUTION 2-1. 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 Unit Gravimeter [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. Specifications Gauge manifold ·Only for R410A ·Use the existing fitting specifications . (UNF1/2) ·Use high-tension side pressure of 5.3MPa·G or over. Charge hose ·Only for R410A ·Use pressure performance of 5.09MPa·G or over.
  • Page 5 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 6: Features

    FEATURES PU-P125YHA.UK PU-P140YHA.UK PUH-P125YHA.UK PUH-P140YHA.UK PU-P71VHA.UK PUH-P71VHA.UK PU-P71YHA.UK PUH-P71YHA.UK PU-P100VHA.UK PUH-P100VHA.UK PU-P100YHA.UK PUH-P100YHA.UK CHARGELESS SYSTEM PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT. (Max.30m) The refrigerant circuit with LEV(Linear Expansion Valve) and Accumlator always control the optimal refrigerant level regardless of the length (30m max. and 5m min.) of piping. The additional refrigerant charging work during installation often causes problems.

  • Page 7: Specifications

    SPECIFICATIONS Service Ref. PUH-P71VHA/YHA.UK PUH-P100VHA/YHA.UK Cooling Heating Cooling Heating Mode Power supply (phase, cycle, voltage) Single, 50Hz, 230V/ 3Phase, 50Hz, 400V(4wires) Running current 12.03/4.29 11.98/4.28 15.07/5.39 14.48/5.18 Max. current 25.5 30.5 External finish Munsell 5Y 7/1 Refrigerant control Linear Expansion Valve Hermetic Compressor NN33VAAMT/ NN33YCAMT...
  • Page 8 Service Ref. PU-P71VHA/YHA.UK PU-P100VHA/YHA.UK Cooling Cooling Mode Power supply (phase, cycle, voltage) Single, 50Hz, 230V / 3Phase, 50Hz, 400V(4wires) Running current 12.03/4.29 15.07/5.18 Max. current 25.5 30.5 Munsell 5Y 7/1 External finish Refrigerant control Linear Expansion Valve Hermetic Compressor Model...

  • Page 9: Data

    DATA 5-1. REFILLING REFRIGERANT CHARGE (R410A : kg) Piping length (one way) Factory Service Ref. charged PUH-P71VHA/YHA.UK PU-P71VHA/YHA.UK PUH-P100VHA/YHA.UK PU-P100VHA/YHA.UK PUH-P125/140YHA.UK PU-P125/140YHA.UK PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT. 5-2. COMPRESSOR TECHNICAL DATA (at 20°C) PUH-P71VHA.UK PUH-P71YHA.UK PUH-P100VHA.UK PUH-P100YHA.UK...

  • Page 10: Noise Criterion Curves

    5-3. NOISE CRITERION CURVES PUH-P71VHA.UK PUH-P100VHA.UK SPL(dB) SPL(dB) MODE LINE MODE LINE COOLING COOLING PUH-P71YHA.UK PUH-P100YHA.UK HEATING HEATING PU-P71VHA.UK PU-P100VHA.UK PU-P71YHA.UK PU-P100YHA.UK 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...
  • Page 11 PUH-P140YHA.UK SPL(dB) MODE LINE COOLING PU-P140YHA.UK HEATING NC-70 NC-60 NC-50 NC-40 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR NC-20 CONTINUOUS NOISE 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz MICROPHONE UNIT 1.5m GROUND...

  • Page 12: Cooling

    5-4. STANDARD OPERATION DATA Representative matching PLA-RP71AA PLA-RP100AA2 PLA-RP125AA2 PLA-RP140AA2 Mode Cooling Heating Cooling Heating Cooling Heating Cooling Heating Capacity 8,000 9,000 10,000 11,500 12,300 14,300 14,200 17,000 Input 2.83 2.82 3.53 3.40 4.36 4.23 5.41 5.35 Indoor unit PLA-RP71AA PLA-RP100AA2 PLA-RP125AA2 PLA-RP140AA2...
  • Page 13 1 , 50 Phase , Hz 1 , 50 1 , 50 1 , 50 Volts Amperes 0.92 0.92 0.92 0.79 PU-P71VHA PU-P100VHA PU-P125YHA PU-P140YHA Outdoor unit PU-P71YHA PU-P100YHA Phase , Hz 1/3 , 50 3 , 50 3 , 50...

  • Page 14: Outlines And Dimensions

    OUTLINES AND DIMENSIONS PU-P71VHA.UK PUH-P71VHA.UK Unit : mm PU-P71YHA.UK PUH-P71YHA.UK PU-P100VHA.UK PUH-P100VHA.UK PU-P100YHA.UK PUH-P100YHA.UK...
  • Page 15 PU-P125YHA.UK PUH-P125YHA.UK Unit : mm PU-P140YHA.UK PUH-P140YHA.UK...

  • Page 16: Wiring Diagram

    WIRING DIAGRAM PU-P71VHA.UK PUH-P71VHA.UK PU-P100VHA.UK PUH-P100VHA.UK SYMBOL NAME SYMBOL NAME FUSE1(O.B) COMPRESSOR(INNER THERMOSTAT) FUSE (6.3A 250V) FAN MOTOR(INNER THERMOSTAT) FUSE2(O.B) FUSE (6.3A 250V) THERMISTOR LIQUID TEMP FUSE3(O.B) FUSE (6.3A 250V) FUSE4(O.B) DISCHARGE TEMP FUSE (6.3A 250V) COND./EVA.TEMP (O.B) MC/CH RELAY MF CAPACITOR (O.B)
  • Page 17 PU-P71YHA.UK PUH-P71YHA.UK PU-P100YHA.UK PUH-P100YHA.UK PU-P125YHA.UK PUH-P125YHA.UK PU-P140YHA.UK PUH-P140YHA.UK SYMBOL NAME SYMBOL NAME COMPRESSOR FUSE1(O.B) FUSE (6.3A 250V) FUSE2(O.B) FAN MOTOR(INNER THERMOSTAT) FUSE (6.3A 250V) THERMISTOR LIQUID TEMP FUSE3(O.B) FUSE (6.3A 250V) FUSE4(O.B) DISCHARGE TEMP FUSE (6.3A 250V) COND./EVA.TEMP (O.B) MC/CH RELAY MF CAPACITOR (O.B) 21S4 RELAY...

  • Page 18: Wiring Specifications

    WIRING SPECIFICATIONS 8-1. FIELD ELECTRICAL WIRING (power wiring specifications) Outdoor unit model P71V P100V P71Y P100Y P125Y P140Y Outdoor unit Power supply ~/N (single), 50 Hz, 230 V 3N~(3phase), 50 Hz, 400 V Outdoor unit input capacity 32 A 16 A 25 A Main switch (Breaker) 0.06...

  • Page 19: Separate Indoor Unit/ Outdoor Unit Power Supplies

    8-2. 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 20 8-3. INDOOR – OUTDOOR CONNECTING CABLE The cable shall not be lighter than design 245 IEC or 227 IEC. The cable length may vary depending on the condition of installation, humidity or materials, etc. Cross section Wire size Number Polarity L(m) 5 of cable of wires...

  • Page 21: M-Net Wiring Method

    8-4. 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 22 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 23: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM Unit : mm PUH-P71VHA.UK PUH-P100VHA.UK PUH-P71YHA.UK PUH-P100YHA.UK PU-P71VHA.UK PU-P100VHA.UK PU-P71YHA.UK PU-P100YHA.UK Service port High pressure (check) Ball valve protect switch Outdoor heat exchanger 4-way valve (#50) Thermistor Refrigerant GAS pipe Strainer (TH6) 15.88A({5/8") Thermistor Service (TH3) port...

  • Page 24: Troubleshooting

    TROUBLESHOOTING 10-1. TROUBLESHOOTING <Error code display by self-diagnosis and actions to be taken for service (summary)> Present and past error codes are logged and displayed on the wired remote controller 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 25 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 26 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 27 10-3. HOW TO PRECEED "SELF-DIAGNOSIS" 10-3-1. 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 28: 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 29 10-3-4. 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 30 • 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 31: Self-Diagnosis Action Table

    10-4. SELF-DIAGNOSIS ACTION TABLE <Abnormalities detected when the power is put on> (Note 1) The number in ( ) is the error cord of upper remote controller (M-NET) Error Code Meaning of error code and detection method Case Judgment and action 1 No voltage is supplied to termi- 1 Check following items.
  • Page 32 Error Code Meaning of error code and detection method Case Judgment and action Indoor/outdoor unit connector mis- 1 Contact failure or mis-wiring of 1 Check disconnection or looseness or polarity wiring, excessive number of units (5 indoor/outdoor unit connecting of indoor/outdoor unit connecting wire of units or more) indoor and outdoor units.
  • Page 33 Case Error Code Meaning of error code and detection method Judgment and action 1 Short cycle of indoor unit 1-6 Check indoor unit and repair defectives. Abnormal high pressure (High-pressure 2 Clogged filter of indoor unit 7 Check full open stop valve. switch 63H worked) Abnormal if high-pressure switch 63H 3 Decreased airflow caused by...
  • Page 34 Error Code Meaning of error code and detection method Case Judgment and action Open/short circuit of discharging ther- 1 Disconnection or contact failure 1 Check contact of connector (TH4) on the mistor (TH4) of connector (TH4) on the indoor controller board. Abnormal if open (0: or less) or short indoor controller board.
  • Page 35 Note: E1, E2 and E4 to E7, refer to indoor unit service manual. Case Error Code Meaning of error code and detection method Judgment and action Compressor over current (start-up 1 Abnormal compressor 1 Check compressor. 2 Clogged indoor filter locked) breaking Refer to 5-2.
  • Page 36 Case Error Code Meaning of error code and detection method Judgment and action 12 Put the power off, and on again to check. 1 Noise has entered transmis- Not defined error code Replace indoor controller board or outdoor This code is displayed when not defined sion wire of remote controller.
  • Page 37 Error Code Meaning of error code and detection method Case Judgment and action NO ACK Common factor that has no rela- Always try the followings when the error tion with abnormality source. 1. Transmitting side controller detects “A7” occures. 1 The unit of former address abnormal if a massage was transmitted does not exist as address but there is no reply (ACK) that a mas-...
  • Page 38 From the previous page. Error Code Meaning of error code and detection method Case Judgment and action Same as mentioned in “A7” of the previous 5. If displayed address or attribute is 1 During sequential operation of page. FRESH MASTER, indoor unit and FRESH MAS- TER of other refrigerant sys- Indoor unit detects abnormality when...

  • Page 39: Troubleshooting By Inferior Phenomena

    10-5. TROUBLESHOOTING BY INFERIOR PHENOMENA Phenomena Factor Countermeasure (1)Remote controller display does not Reference (Meaning of the indoor control board LED) work. (Electric current marker “ ” is not LED1 : Micro computer power supply displayed on the remote controller.) ..Display of DC14V is supply or not from indoor power.
  • Page 40 Phenomena Factor Countermeasure 1Louver motor fault. 1Louver motor resistance value check (7)Left/right louver performance fault. 2Disconnecting, breaking and contact fault of the con- 2Check the removing of indoor controller nector. board (CNL) breaking line and contact fault. 1Open the grille to check the filter. (8)Though the remote controller dis- 1Filter clogging (dirt) Clean the filter and remove dust or dirt...
  • Page 41 [for wired remote controller] Before you call out a repair man, check the following table to see whether there is a simple solution to your problem. Solution Problem Solution Problem The room neither gets cool nor Clean the filter. (Dust and rebris This sound is made when internal A ticking noise is heard from warm very much.
  • Page 42 Solution Problem Solution Problem The unit started even though the Is this timer on? "DEFROST" is displayed (no air Frost adheres to the outdoor unit start/stop button was not pushed. Press the start/stop button to stop comes out the unit). when the outside air temperature the unit.
  • Page 43 [for wireless remote controller] Before you call out a repair man, check the following table to see whether there is a simple solution to your problem. Display reading Cause Solution Problem When POWER ON/OFF button is Main power switch is turned off. Turn main power on.
  • Page 44 10-6. HOW TO CHECK THE PARTS PUH-P71VHA.UK PUH-P100VHA.UK PUH-P71YHA.UK PUH-P100YHA.UK PUH-P125YHA.UK PUH-P140YHA.UK PU-P71VHA.UK PU-P100VHA.UK PU-P71YHA.UK PU-P100YHA.UK PU-P125YHA.UK PU-P140YHA.UK Parts name Check points Thermistor (TH3) Disconnect the connector then measure the resistance using a tester. <Outdoor pipe> (Surrounding temperature 10:~30:) Thermistor (TH4)
  • Page 45 10-7. HOW TO CHECK THE COMPONENTS <Thermistor feature chart> Low temperature thermistors • Thermistor <Outdoor pipe> (TH3) • Thermistor <Outdoor 2-phase pipe> (TH6) Thermistor R0 = 15k' ± 3% B constant = 3480 ± 2% =15exp{3480( 273+t – 273 )} 15k' 4.3k' 9.6k'...

  • Page 46: 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 board. • Valve position can be changed in proportion to the number of pulse signal. <Connection between the indoor controller board and the linear expansion valve>...
  • Page 47 (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 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 48 10-8. TEST POINT DIAGRAM Outdoor controller board PUH-P71VHA.UK PUH-P100VHA.UK PUH-P71YHA.UK PUH-P100YHA.UK PUH-P125YHA.UK PUH-P140YHA.UK PU-P71VHA.UK PU-P100VHA.UK PU-P71YHA.UK PU-P100YHA.UK PU-P125YHA.UK PU-P140YHA.UK CNLEV Linear expansion valve When connecting A-control Service Tool [ PAC-SK52ST ], Liquid temperature Condenser/Evaporator Discharge temperature operation mode can be displayed...

  • Page 49: Emergency Operation

    10-9. EMERGENCY OPERATION 1. When the outdoor unit becomes under mentioned inspection display. Also when the wired remote controller or micro com- puter in the indoor unit is broken. If there is not any wrong section, short-circuited connector (CN31) in the outdoor con- troller board is possible to emergency operation.
  • Page 50 10-10. FUNCTION OF SWITCHS, CONNECTORS AND JUMPERS Outdoor switch for a new freon function table Switch Action by the switch operation Function Effective timing Signal Compulsory defrosting w1 Start Normal Heat compressor operating Abnormal history clear Clear Normal off or operating 1 2 3 4 5 6 1 2 3 4 5 6...

  • Page 51: Optional Parts

    Jumper connector function table Switch Action by the switch operation Effective timing Function Signal (With jumper wire) (Without jumper wire) Switch of single phase and 3 phase Single phase When power supply ON 3 phase power supply Switch of cooling only/ When power supply ON Cooling only Heat pump...
  • Page 52 Outdoor unit operation monitor function Operation indicator SW2 : Indicator change of self diagnosis SW2 setting Display detail Explanation for display Unit Code indication 2 3 4 5 6 <Digital indicator LED1 working details> · Lighting (Normal operation) : Indicating the operation mode. (Be sure the 1 to 6 in the SW2 are set to OFF) (Initial setting) (1) Display when the power supply ON.
  • Page 53 SW2 setting Display detail Explanation for display Unit Piping temperature. (TH3) – 40~90 – 40~90 (When the coil thermistor is 0:or below, “–” and temperature displays by turns.) (Example) When -10: One second interval 2 3 4 5 6 – Discharge temperature.
  • Page 54 SW2 setting Display detail Explanation for display Unit Piping temperature (TH3) on error – 40~90 occurring (When the coil thermistor is 0:and less, “–” and – 40~90 temperature are displayed by turns) (Example) When –15: One second interval 2 3 4 5 6 –...
  • Page 55 SW2 setting Display detail Explanation for display Unit Display as an outdoor Capacity setting display capacity code Capacity Code P100 Code P125 display P140 2 3 4 5 6 Outdoor unit setting advice The tens digit (Total display for applied setting) Setting details Display details H·P / Cooling only...
  • Page 56 SW2 setting Display detail Explanation for display Unit Indoor setting temperature 17~30 17~30 2 3 4 5 6 Outdoor piping temperature/Cond./Eva. – 39~88 (TH6) (When the temperature is 0: or less, “–” and – 39~88 temperature are displayed by turns) 2 3 4 5 6 Discharge super heat.
  • Page 57 SW2 setting Display detail Explanation for display Unit 0~999 Thermo-ON time to error stop. (When the time is 100 or more, the hundreds 0~999 digit and tens, units digit are displayed by turns.) Minute (Example) When 415 minutes 2 3 4 5 6 One second interval –39~88 Indoor unit piping temperature / cond.
  • Page 58 <Display function of inspection for outdoor unit> • The blinking patterns of two LEDs—LED1(Green) and LED2(Red)—show the diagnoses of troubles in case of malfunction. • By 7SEG indicator board indicates the operation mode and inspection types. LED1 (Green) LED2 (Red) Indication (O.B) Error Name Inspection method...
  • Page 59 From the preceding page. Indication (O.B) Error Name Inspection method LED1 LED2 (Green) (Red) 1 Check if ball valves are open. •Abnormal high discharge temperature(TH4) 3 blinks 1 blink 2 Check the continuity of connector (TH4) on outdoor controller board by using a tester. 3 Check if the unit fills the refrigerant at the same amount as specified.

  • Page 60: Function Setting

    FUNCTION SETTING 11-1. 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 61 11-1-1. 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 62 [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 63 11-1-2. 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 64 11-2. 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 65 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 66: Disassembly Procedure

    DISASSEMBLY PROCEDURE PUH-P71VHA.UK PUH-P100VHA.UK PUH-P71YHA.UK PUH-P100YHA.UK PU-P71VHA.UK PU-P100VHA.UK PU-P71YHA.UK PU-P100YHA.UK 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 67 OPERATING PROCEDURE PHOTOS Thermistor 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) Photo 4 <Outdoor 2-phase pipe> and thermistor <outdoor pipe> (TH3) (TH6) (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) (3) Disconnect the connector TH3/6(Red), on the controller circuit board in the electrical parts box.
  • Page 68 OPERATING PROCEDURE PHOTOS 6. Removing the solenoid valve coil <Four-way valve> (21S4), Photo 6 linear expansion valve coil (LEV) (1) Remove the service panel. (See figure 1.) (2) Remove the top panel. (See figure 1.) solenoid valve coil (3) Remove the electrical parts box. (See photo 3.) Four-way valve <Four-way valve>...
  • Page 69 OPERATING PROCEDURE PHOTOS 9. Removing the high pressure switch (63H) Photo 8 Lead wire of (1) Remove the service panel. (See figure 1.) high pressure switch (2) Remove the top panel. (See figure 1.) (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 70 PUH-P125YHA.UK PUH-P140YHA.UK PU-P125YHA.UK PU-P140YHA.UK OPERATING PROCEDURE PHOTOS & ILLUSTRATION 1. Removing the service panel and top panel Top panel fixing screws Top panel Figure 1 (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 71 OPERATING PROCEDURE PHOTOS Thermistor 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) Photo 4 <Outdoor 2-phase pipe> (1) Remove the service panel. (See figure 1.) (TH6) (2) Remove the top panel. (See figure 1.) (3) Disconnect the connector TH3/ TH6 (red) on the controller circuit board in the electrical parts box.
  • Page 72 PHOTOS OPERATING PROCEDURE Photo 6 6. Removing the solenoid valve coil <Four-way valve> (21S4), Solenoid valve coil linear expansion valve coil (LEV) and <Four-way valve> solenoid valve coil <Bypass valve> (SV) fixing screw (1) Remove the service panel. (See figure 1.) (2) Remove the top panel.
  • Page 73 OPERATING PROCEDURE PHOTOS Solenoid valve coil 9. Removing the bypass valve Photo 7 <Four-way valve> (1) Remove the service panel. (See figure 1.) fixing screw (2) Remove the top panel. (See figure 1.) (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 74 OPERATING PROCEDURE PHOTOS 12. Removing the motor for compressor (MC) Photo 10 (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 75: Parts List

    PARTS LIST ( non-RoHS compliant ) STRUCTURAL PARTS PUH-P71VHA/YHA.UK PUH-P100VHA/YHA.UK PU-P71VHA/YHA.UK PU-P100VHA/YHA.UK ty/set Price Recom- Wiring Remarks PUH-P/ PU-P Part No. Part Name Specification Diagram mended (Drawing No.) 71/ 100 Symbol Unit Amount VHA/ YHA.UK (DG12F536H10) — F.ST SCREW (5 10)
  • Page 76 FUNCTIONAL PARTS PUH-P71VHA/YHA.UK PUH-P100VHA/YHA.UK PU-P71VHA/YHA.UK (TH6) PU-P100VHA/YHA.UK (TH3) P71/P100VHA P71/P100YHA...
  • Page 77 ty/set Price Wiring Recom- PUH-P71 PUH-P100 PU-P71 PU-P100 Remarks Part No. Part Name Specification Diagram mended VHA YHA (Drawing No.) Symbol Unit Amount S70 K04 115 PROPELLER FAN S70 K01 097 S70 E40 763 FAN MOTOR S70 E50 763 FAN MOTOR S70 E41 202 THERMISTOR (DISCHARGE) S70 E72 400...
  • Page 78 FUNCTIONAL PARTS PUH-P125YHA.UK PUH-P140YHA.UK PU-P125YHA.UK PU-P140YHA.UK (TH6) (TH3) (TH4) 27 28...
  • Page 79 ty/set Price Recom- Wiring Remarks PUH-P PU-P Part No. Part Name Specification mended Diagram (Drawing No.) 125 140 125 140 Symbol Unit Amount YHA.UK S70 E40 763 FAN MOTOR S70 E81 408 HEAT EXCHANGER (TOP) S70 K04 115 PROPELLER FAN S70 K01 097 S70 E82 408 HEAT EXCHANGER (UNDER)
  • Page 80 STRUCTURAL PARTS PUH-P125YHA.UK PUH-P140YHA.UK PU-P125YHA.UK PU-P140YHA.UK ty/set Price Wiring Recom- Remarks PUH-P/ PU-P Part No. Part Name Specification Diagram mended (Drawing No.) 125/ 140 Unit Amount Symbol YHA.UK (5 10) — (DG12F536H10) F.ST SCREW S70 E20 662 SIDE PANEL (L) S70 E20 675 FAN GRILLE S70 E20 668...

  • Page 81: Rohs Parts List

    RoHS PARTS LIST STRUCTURAL PARTS PUH-P71VHA/YHA.UK PUH-P100VHA/YHA.UK PU-P71VHA/YHA.UK PU-P100VHA/YHA.UK ty/set Price Wiring Recom- Remarks PUH-P/ PU-P Part No. Part Name Specification mended Diagram 71/ 100 (Drawing No.) Symbol Unit Amount VHA/ YHA.UK — F.ST SCREW (5 10) (DG12F536H10) S70 E10 662...
  • Page 82 FUNCTIONAL PARTS PUH-P71VHA/YHA.UK PUH-P100VHA/YHA.UK PU-P71VHA/YHA.UK (TH6) PU-P100VHA/YHA.UK (TH3) P71/P100VHA P71/P100YHA...
  • Page 83 ty/set Price Wiring Recom- PUH-P71 PUH-P100 PU-P71 PU-P100 Remarks Part No. Part Name Specification Diagram mended VHA YHA (Drawing No.) Symbol Unit Amount S70 K04 115 PROPELLER FAN S70 K01 097 S70 E40 763 FAN MOTOR S70 E50 763 FAN MOTOR S70 E41 202 THERMISTOR (DISCHARGE) S70 E72 400...
  • Page 84 FUNCTIONAL PARTS PUH-P125YHA.UK PUH-P140YHA.UK PU-P125YHA.UK PU-P140YHA.UK (TH6) (TH3) (TH4) 27 28...
  • Page 85 ty/set Price Recom- Wiring Remarks PUH-P PU-P Part No. Part Name Specification mended Diagram 125 140 125 140 (Drawing No.) Symbol Unit Amount YHA.UK S70 E40 763 FAN MOTOR S70 E81 408 HEAT EXCHANGER (TOP) S70 K04 115 PROPELLER FAN S70 K01 097 S70 E82 408 HEAT EXCHANGER (UNDER)
  • Page 86 S70 E10 655 HANDLE HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN CCopyright 2006 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Jul. 2006 No.OC379 REVISED EDITION-B PDF 7 New publication, effective Jul. 2006. Distributed in May 2006 No.OC379 REVISED EDITION-A PDF 8 Specifications subject to change without notice.

This manual is also suitable for:

Pu-p71yhaPu-p125yhaPu-p140yhaPuh-p71vhaPuh-p71yhaPuh-p100vha ... Show all

Table of Contents