Mitsubishi Electric PUZ-HA30NHA5 Service Manual
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Mitsubishi Electric PUZ-HA30NHA5 Service Manual

Mr. slim split-type, heat pump air conditioners
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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SERVICE MANUAL

[Model Name]

PUZ-HA30NHA5
PUZ-HA36NHA5
R410A
[Service Ref.]
PUZ-HA30NHA5
PUZ-HA36NHA5
Notes:
• This manual describes service
data of the outdoor units only.
• RoHS compliant products have
<G> mark on the spec name
plate.
CONTENTS
1. REFERENCE MANUAL ·································· 2
2. SAFETY PRECAUTION ·································· 2
3. FEATURES ······················································ 6
4. SPECIFICATIONS ··········································· 7
5. DATA ································································ 8
6. OUTLINES AND DIMENSIONS ···················· 10
7. WIRING DIAGRAM ·········································11
8. WIRING SPECIFICATIONS ··························· 12
9. REFRIGERANT SYSTEM DIAGRAM ·············· 16
10. TROUBLESHOOTING ··································· 17
11. EASY MAINTENANCE FUNCTION··············· 73
12. FUNCTION SETTING ···································· 75
14. DISASSEMBLY PROCEDURE ······················ 94
PARTS CATALOG (OCB607)
October 2015
No. OCH607

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Summary of Contents for Mitsubishi Electric PUZ-HA30NHA5

  • Page 1: Table Of Contents

    No. OCH607 SERVICE MANUAL R410A Notes: • This manual describes service [Service Ref.] [Model Name] data of the outdoor units only. PUZ-HA30NHA5 • RoHS compliant products have <G> mark on the spec name PUZ-HA30NHA5 plate. PUZ-HA36NHA5 PUZ-HA36NHA5 CONTENTS 1. REFERENCE MANUAL ·································· 2 2.

  • Page 2: Reference Manual

    REFERENCE MANUAL INDOOR UNIT Model name Service Ref. Service manual No. PLA-A18/30/36BA6 PLA-A18/30/36BA6 OCH581/OCB581 PKA-A18HA6 PKA-A18HA6 OCH580/OCB580 PKA-A30/36KA6 PKA-A30/36KA6.TH OCH584/OCB584 PEA-A18AA6 PEA-A18AA6.TH HWE08070 PEAD-A30/36AA5 PEAD-A30/36AA5 HWE14030 PCA-A30/36KA6 PCA-A30/36KA6 OCH585/OCB585 PVA-A30/36AA4 PVA-A30/36AA4 HWE14060 SAFETY PRECAUTION 2-1. ALWAYS OBSERVE FOR SAFETY Before obtaining access to terminal, all supply circuits must be disconnected. Preparation before the repair service.
  • Page 3 2-2. CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R410A Use a vacuum pump with a reverse flow check Use new refrigerant pipes. valve. In case of using the existing pipes for R22, be careful with Vacuum pump oil may flow back into refrigerant cycle and the following.
  • Page 4 [1] Cautions for service (1) Perform service after recovering 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 2-3. 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 PUZ-HA30NHA5 PUZ-HA36NHA5 HIGH HEATING CAPACITY Industry-first flash injection circuit is equipped, which enables to Performance (Btu/h) 60%UP about keep the equal capacity to the rating even when outside tem- 40,000 HA36 perature is 5°F [−15°C]. 38,000BTU/h 30,000 23,500BTU/h -13°F -4°F...

  • Page 7: Specifications

    SPECIFICATIONS Service Ref. PUZ-HA30NHA5 PUZ-HA36NHA5 Power supply Phase Single Cycle 60 Hz Voltage 208/230 V MOCP Breaker size External finish Munsell 3Y 7.8/1.1 Heat exchanger Plate fin coil Defrost method Reverse cycle Crankcase heater — Compressor Hermetic Model ANB33FJEMT Motor output R.L.A.

  • Page 8: Data

    218 oz 224 oz 230 oz 237 oz 242 oz 254 oz 260 oz 272 oz 280 oz 195 oz PUZ-HA30NHA5 PUZ-HA36NHA5 5.5 kg 5.7 kg 5.9 kg 6.0 kg 6.2 kg 6.4 kg 6.6 kg 6.7 kg 6.9 kg 7.2 kg...
  • Page 9 Indoor unit model PKA-A30KA6 PKA-A36KA6 Phase Single Cycle 60 Hz Voltage 230 V Current 0.36A 0.57A Outdoor unit model PUZ-HA36NHA5 PUZ-HA30NHA5 Phase Single Cycle 60Hz Voltage 230V Current 13.0 A 12.2 A 15.4 A 11.1 A Discharge pressure 2.58 2.94 2.51...

  • Page 10: Outlines And Dimensions

    OUTLINES AND DIMENSIONS PUZ-HA30NHA5 Unit : mm<inch> PUZ-HA36NHA5 OCH607...

  • Page 11: Wiring Diagram

    WIRING DIAGRAM PUZ-HA30NHA5 PUZ-HA36NHA5 SYMBOL NAME SYMBOL NAME Terminal Block<Power Supply, Indoor/Outdoor> N.F. Noise Filter Circuit Board Motor for Compressor C.B. Controller Circuit Board MF1, MF2 Fan Motor F1, F2, F3, F4 Fuse<T6.3AL250V > 21S4 Solenoid Valve (4-Way Valve) Switch<Manual Defrost, Defect History Record Reset, Refrigerant Address>...

  • Page 12: Wiring Specifications

    WIRING SPECIFICATIONS 8-1. INDOOR UNIT POWER SUPPLIED FROM OUTDOOR UNIT The following connection patterns are available. The outdoor unit power supply patterns vary on models. 1:1 System Simultaneous twin system A Outdoor unit power supply B Earth leakage breaker C Wiring circuit breaker or isolating switch D Outdoor unit E Indoor unit/outdoor unit connecting cords F Remote controller...
  • Page 13 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 The optional indoor power supply terminal kit is required. Outdoor unit power supply Earth leakage breaker Wiring circuit breaker or isolating switch Outdoor unit Indoor unit/outdoor unit connecting cords...
  • Page 14 8-3. INDOOR – OUTDOOR CONNECTING CABLE Wire No. o Size Outdoor power supply Max. 164 ft [50 m] Max. 262 ft [80 m] Max. 147 ft [45 m] Indoor unit-Outdoor unit 3 o AWG13(polar) 3 o AWG13(polar) and S3 separated 3 o AWG15(polar) Note: The Maximum cable length may vary depending on the condition of installation, humidity or materials, etc.

  • Page 15: Refrigerant Address

    ● M-NET wiring (1) Use 2-core x AWG16 [1.25 mm ] shield wire for electric wires. M-NET terminal (Excluding the case connecting to system controller.) Ground block (2) Connect the wire to the M-NET terminal block. Connect one core of the wire transmission wire (non-polar) to A terminal and the other to B.

  • Page 16: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM PUZ-HA30NHA5 PUZ-HA36NHA5 Unit: mm (in) Thermistor TH7 (Ambient) Heat exchanger Thermistor Solenoid valve Ball valve Refrigerant (2-phase pipe) (4-way valve) GAS pipe connection Strainer [15.88(5/8) (#50) Charge plug Thermistor TH3 (High pressure) (Liquid) Charge plug Muffler High pressure...

  • Page 17: Troubleshooting

    TROUBLESHOOTING 10-1. TROUBLESHOOTING <Check code displayed by self-diagnosis and actions to be taken for service (summary)> Present and past check codes are logged, and they can be displayed on the wired remote controller and control board of out- door unit. Actions to be taken for service, which depends on whether or not the trouble is reoccurring in the field, are summa- rized in the table below.
  • Page 18 10-2-1. Test run for wired remote controller MENU RETURN SELECT ON/OFF Function buttons Select "Service" from the Main menu, and press the button. Test run Input maintenance info. Function setting Check Self check Select "Test run" with the F1 or F2 button, and press the button.

  • Page 19: Error Information

    <Error information> When an error occurs, the following screen will appear. Check the error status, stop the operation, and consult your dealer. Check code, error unit, refrigerant address, unit model name, and serial Error information number will appear. Error code The model name and serial number will appear only if the information has Error unit Ref.
  • Page 20 <Checking the error information> Main Main menu Restriction While no errors are occurring, page 2/2 of the error information can be viewed by Energy saving selecting "Error information" from the Main menu. Night setback Errors cannot be reset from this screen. Filter information Error information Main display:...
  • Page 21 10-2-2. Test run for wireless remote controller Test run [for IR wireless remote controller] Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500 V Megger and check that it is equal to or greater than 1.0 M". TEST COOL 1 Turn on the main power to the unit.
  • Page 22 10-3. HOW TO PROCEED "SELF-DIAGNOSIS" 10-3-1. Self-diagnosis Test run Input maintenance info. Function setting Check Select "Service" from the Main menu, and press the button. Self check Select "Self check" with the F1 or F2 button, and press the button. With the F1 or F2 button, enter the refrigerant address, and press the button.
  • Page 23 10-3-2. Remote controller check If operations cannot be completed with the remote controller, diagnose the remote controller with this function. Select "Service" from the Main menu, and press the button. Maintenance password Remote controller check Select "Remote controller check" with the F1 or F2 button, and press button.

  • Page 24: Refrigerant Address

    10-3-4. Malfunction-diagnosis method by IR 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 25 • 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 blink pattern Approx. 2.5 s 0.5 s 0.5 s. 0.5 s Approx.
  • Page 26 10-4. SELF-DIAGNOSIS ACTION TABLE Note: Refer to indoor unit section for the <Abnormalities detected when the power is turned on> codes starting with P and E. Check code Abnormal point and detection method Case Judgment and action 1 No voltage is supplied to termi- 1 Check following items.

  • Page 27: Refrigerant Address

    Check code Abnormal point and detection method Case Judgment and action 63H connector open 1 Disconnection or contact failure 1 Check connection of 63H connector on Abnormal if 63H connector circuit is open for of 63H connector on outdoor outdoor controller circuit board. 3 minutes continuously after power supply.
  • Page 28 <Abnormalities detected while unit is operating> <Abnormalities detected while unit is operating> Abnormal point and detection method Judgment and action Check code Case High pressure (High-pressure switch 1 Short cycle of indoor unit 1–6 Check indoor unit and repair defect. 63H worked) 2 Clogged filter of indoor unit Abnormal if high-pressure switch 63H...
  • Page 29 Check code Abnormal point and detection method Case Judgment and action Open/short of outdoor unit thermistors 1 Disconnection or contact failure 1 Check connection of connector (TH3, TH32, TH33, TH6, TH7, and TH8) of connectors (TH3,TH,32,TH33,TH7/6) on the outdoor Abnormal if open or short is detected dur- Outdoor controller circuit controller circuit board.
  • Page 30 Check code Abnormal point and detection method Case Judgment and action Outdoor fan motor 1 Failure in the operation of the 1 Check or replace the DC fan motor. The outdoor fan motor is considered to be DC fan motor abnormal if the rotational frequency of fan 2 Failure in the outdoor circuit 2 Check the voltage of the outdoor circuit con-...
  • Page 31 Check code Case Judgment and action Abnormal point and detection method Compressor overcurrent interruption 1 Stop valve is closed. 1 Open stop valve. (When compressor locked) 2 Decrease of power supply volt- 2 Check facility of power supply. Abnormal if overcurrent of DC bus or compressor is detected within 30 seconds 3 Looseness, disconnection or 3 Correct the wiring (U·V·W phase) to compres-...

  • Page 32: Address

    Check code Abnormal point and detection method Case Judgment and action Remote controller transmission 1 Contact failure at transmission 1 Check disconnection or looseness of indoor unit or transmission wire of remote controller. error(E0)/signal receiving error(E4) wire of remote controller 2 Set one of the remote controllers “main”.
  • Page 33 Check code Abnormal point and detection method Case Judgment and action Indoor/outdoor unit communication error (Signal receiving error) 1 Contact failure, short circuit or Note: Check LED display on outdoor controller miswiring (converse wiring) of 1 Abnormal if indoor controller board could circuit board.
  • Page 34 Check code Abnormal point and detection method Case Judgment and action 1 Breaking of wire or contact 12 Check connection of each connector CN2 Serial communication error failure of connector CN2 and CN4 between the outdoor controller 1. Abnormal if serial communication between the outdoor controller circuit board and the outdoor power circuit between outdoor controller circuit board...
  • Page 35 <M-NET communication error> Note: “Indoor unit” in the text indicates M-NET board in outdoor unit. Check Code Abnormal point and detection method Case Judgment and action Address duplicate definition Search the unit with same address as abnormali- 1 There are 2 or more same This error is displayed when transmission address of controller of out- ty occurred.
  • Page 36 Check Code Abnormal point and detection method Case Judgment and action NO ACK signal Common factor that has no rela- Always try the following when the error 1. Transmitting side controller detects tion with abnormality source. “A7” occurs. abnormal if a message was transmitted 1 The unit of former address but there is no reply (ACK) that a mes- does not exist as address...
  • Page 37 From the previous page. Check Code Abnormal point and detection method Case Judgment and action 4. If displayed address or attribute is Same as mentioned in “A7” of the previous 1 During group operation with remote controller, indoor unit of multi- refrigerant page.
  • Page 38 Check Code Abnormal point and detection method Case Judgment and action M-NET NO RESPONSE 1 Transmitting condition is 1 Check transmission waveform or noise on repeated fault because of Abnormal if a message was transmitted transmission wire. noise and the like. and there were reply (ACK) that message 2 Turn off the power supply of outdoor unit 2 Extension of transmission wire...
  • Page 39 Factor Phenomena Countermeasure 4. Even controlling by the IR wireless 1 The pair number settings of the IR wireless remote 1 Check the pair number settings. remote controller no beep is heard controller and indoor controller board are mismatched. and the unit does not start operat- ing.
  • Page 40 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 41 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.
  • Page 42 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.
  • Page 43 LED display of the indoor controller board LED1 : Symptoms: Nothing is displayed on the remote controller. 3 LED2 : LED3 : — Inspection method and Diagnosis flow Cause troubleshooting Check the voltage of the terminal block (TB6) of the indoor unit. 10 to 16 V DC? •...
  • Page 44 • Before repair Frequent calling from customers Phone Calls From Customers How to Respond Note Unit does 1 The operating display of remote 1 Check if power is supplied to air conditioner. not operate controller does not come on. Nothing appears on the display unless power is at all.
  • Page 45 Phone Calls From Customers How to Respond Note The room cannot be cooled or heated sufficiently. 1 Check the set temperature of remote controller. 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 46 Phone Calls From Customers How to Respond Note Something 3 Air blows out for a while after However, this control is also 3 This is not a malfunction. 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 47 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 COOL: When pipes or piping joints are cooled, they unit.
  • Page 48 10-6. HOW TO CHECK THE PARTS PUZ-HA30NHA5 PUZ-HA36NHA5 Check points Parts name Thermistor (TH3) Disconnect the connector then measure the resistance with a tester. <Liquid> (Ambient temperature 50 to 86°F [10 to 30:]) Thermistor (TH4) <Discharge> Normal Abnormal Thermistor (TH6) 160 to 410 k"...
  • Page 49 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. Pay 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 50 10-7. HOW TO CHECK THE COMPONENTS <Thermistor feature chart> Low temperature thermistors • Thermistor <Liquid> (TH3) • Thermistor <2-phase pipe> (TH6) • Thermistor <Ambient> (TH7) • Thermistor <Suction> (TH32) • Thermistor <Ref. check> (TH33) Thermistor R0 = 15 k" ± 3% B constant = 3480 ±...
  • Page 51 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 indoor controller board and the linear expansion valve>...
  • Page 52 (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 53: Emergency Operation

    10-8. EMERGENCY OPERATION (1) When any check codes shown below is displayed on outdoor unit, or microcomputer for wired remote controller or indoor unit has a failure while no other problems are found, emergency operation will be available by setting the emergency opera- tion switch (SWE) ON and short-circuiting the connector (CN31) on outdoor controller board.
  • Page 54 (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 Remarks Operation data COOL HEAT 81°F [27:] 69°F [20.5:] Intake temperature (TH1) 41°F [5:] 113°F [45:]...
  • Page 55 10-9. TEST POINT DIAGRAM <CAUTION> TEST POINT1 is high voltage. Outdoor controller circuit board PUZ-HA30NHA5 PUZ-HA36NHA5 Manual defrost, detect history record reset, Demand control setting CN51 refrigerant address External signal output • Compressor operat- ing signal • Abnormal signal Model select...
  • Page 56 Outdoor noise filter circuit board PUZ-HA30NHA5 PUZ-HA36NHA5 CN52C 52C driving signal (Connect to the outdoor controller circuit board (CN52C)) LO, NO Voltage of 208/230 V AC is output (Connect to the outdoor CNAC1, CNAC2 power circuit board 208/230 V AC...
  • Page 57 Outdoor power circuit board Brief check of POWER MODULE Usually, they are in a state of being short-circuited if they are broken. PUZ-HA30NHA5 Measure the resistance in the following points (connectors, etc.). PUZ-HA36NHA5 If they are short-circuited, it means that they are broken.
  • Page 58 Active filter module PUZ-HA30NHA5 PUZ-HA36NHA5 Connect to the outdoor power circuit board (TABP2) L1, L2 Connect to the DCL(Reactor) Non-connect Lower side Upper side Non-connect Connect to the outdoor power circuit board (TABP1) Connect to the outdoor power circuit board(CNAF) –...
  • Page 59 10-10. 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 Manual defrost * Start Normal in heating operation. * Abnormal history clear Clear Normal off or operating 1 2 3 4 5 6...
  • Page 60 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 * No function — — — 3,4,5 Model select Following SW5-6 reference Power consumption SW7-1 SW7-2...
  • Page 61 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 62 <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 63 Indication Error Outdoor controller board Check Detailed Contents Inspection method code reference LED1 (Green) LED2 (Red) page 1 Check if stop valves are open. 3 blinking 1 blinking Abnormality of shell thermostat P.28 2 Check if connectors (TH4, LEV-A, and LEV-B) on outdoor controller and discharging temperature (TH4) board are not disconnected.
  • Page 64 <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 check code by controlling DIP SW2 on “A-Control Service Tool”. Operation indicator SW2 : Indicator change of self diagnosis SW2 setting...
  • Page 65 Display detail Explanation for display Unit SW2 setting Pipe temperature/Liquid (TH3) −40–194 (−40–90:) −40–194 (When the coil thermistor detects 0˚F or below, “–” and temperature are displayed by turns.) ˚F (Example) When −10˚F; 2 3 4 5 6 0.5 s 0.5 s Discharge temperature (TH4) 37–327 (3–164:)
  • Page 66 SW2 setting Display detail Explanation for display Unit Pipe temperature/Liquid (TH3) on error −40–194 (–40–90:) occurring (When the coil thermistor detects 0˚F or below, “–” −40–194 and temperature are displayed by turns.) ˚F (Example) When –15˚F; 0.5 s 0.5 s 2 3 4 5 6 Compressor temperature (TH4) or 37–327 (3–164:)
  • Page 67 SW2 setting Display detail Explanation for display Unit 0–3 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 Code HA30N...
  • Page 68 SW2 setting Display detail Explanation for display Unit Indoor setting temperature 62–86 (17–30:) 62–86 ˚F 2 3 4 5 6 Outdoor pipe temperature/2-phase −38–190 (−39–88:) (TH6) (When the temperature is 0˚F or less, “–” and −38–190 temperature are displayed by turns.) ˚F 2 3 4 5 6 Outdoor ambient temperature (TH7)
  • Page 69 SW2 setting Display detail Explanation for display Unit 0–100 Capacity save (When the capacity is 100%, hundreds digit, tens 0–100 digit 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 s 0.5 s demanded, a value from “0”...
  • Page 70 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 s 0.5 s 2 3 4 5 6 Indoor room temperature (TH1) on error...
  • Page 71 SW2 setting Display detail Explanation for display Unit Discharge superheat on error occurring 0–327 (0–182:) (When the temperature is 100˚F or more, hundreds digit, tens digit and ones digit are 0–327 displayed by turns.) °F (Example) When 150°F; Cooling = TH4−TH6 0.5 s 0.5 s Heating = TH4−TH5...
  • Page 72 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 73: Easy Maintenance Function

    EASY MAINTENANCE FUNCTION 11-1. SMOOTH MAINTENANCE Maintenance data, such as the indoor/outdoor unit’s heat exchanger temperature and compressor operation current can be displayed with “Smooth maintenance”. This cannot be executed during test operation. Depending on the combination with the outdoor unit, this may not be supported by some models. Select "Service"...
  • Page 74 11-2. GUIDE FOR OPERATION CONDITION Check Points Inspection item Result 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 75: Function Setting

    FUNCTION SETTING 12-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be be set as necessary 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.) <Table 1>...
  • Page 76 (2) Functions available when setting the unit number to 01-03 or AL (07 in the case of the IR 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.

  • Page 77: Service Menu

    12-1-1. Selecting functions using the wired remote controller <Service menu> Maintenance password is required Select "Service" from the Main menu, and press the button. Main Main menu Maintenance Initial setting *At the main display, the menu button and select "Service" to make the Service maintenance setting.
  • Page 78 <Function setting> Test run Select "Service" from the Main menu, and press the button. Input maintenance info. Function setting Check Self check Select "Function setting" with the F1 or F2 button, and press the button. Function setting Set the indoor unit refrigerant addresses and unit numbers with the F1 Ref.
  • Page 79 12-1-2. Selecting functions using the IR wireless remote controller (Type C) Functions can be selected with the IR wireless remote controller. Function selection using the IR wireless remote controller is available only for refrigerant system with wireless function. Refrigerant address cannot be specified by the IR wireless remote controller. [Flow of function selection procedure] Flow of function selection procedure The flow of the function selection procedure is shown below.
  • Page 80 12-2. FUNCTION SELECTION OF REMOTE CONTROLLER The functions of the function buttons change depending on the screen. Refer to the button function guide that appears at the bottom of the LCD for the functions they serve on a given screen. When the system is centrally controlled, the button function guide that corresponds to the locked button will not appear.
  • Page 81 Menu structure Press the button. MENU Main menu Move the cursor to the desired item with the buttons, and press the button. SELECT Vane · Louver · Vent. (Lossnay) High power Timer ON/OFF timer Auto-Off timer Weekly timer Restriction Temp. range Operation lock Energy saving Auto return...
  • Page 82 Main menu list Setting and display items Setting details Vane · Louver · Vent. (Lossnay) Use to set the vane angle. • Select a desired vane setting from five different settings. Use to turn ON/OFF the louver. • Select a desired setting from "ON" and "OFF." Use to set the amount of ventilation.
  • Page 83 12-3. Function selection of the IR wireless remote controller TEMPERATURE DISPLAY -C/-F SETTING (Change of temp mode from -F to -C) 1 Press the set button with something sharp at the end. MODEL SELECT blinks. AUTO START 2 Press the button. “°F” blinks. 3 Press the button.

  • Page 84: Monitoring The Operation Data By The Remote Controller

    MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 13-1. HOW TO "MONITOR THE OPERATION DATA" 13-1-1. PAR-30MAA/PAR-31MAA Details on the operation data including each thermistor temperature and error history can be confirmed with the remote controller. Select "Service" from the Main menu, and press the button.
  • Page 85 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) 0–50 Compressor-Accumulated operating time 0–9999...
  • Page 86 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”. Compressor-Frequency control state Refer to “13-2-1.Detail Contents in Request Code”. – Outdoor unit-Fan control state Refer to “13-2-1.Detail Contents in Request Code”.
  • Page 87 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 88 Description Request content Unit Remarks (Display range) Indoor-Fan operating time 1 hour 0–9999 (After filter is reset) Indoor-Total operating time 0–9999 10 hours (Fan motor ON time) Indoor fan output value (Sj value) Fan control data – For indoor fan phase control 0–255 Indoor fan output value "...
  • Page 89 13-2-1. Detail Contents in Request Code Example) Request code "004" Request code Discharge temperature 156°F Ref.address Request code Refrigerant address "00" Request: − ＋ Cursor [Operation state] (Request code ": 0 ") Relay output state Power currently Data display Display Compressor 4-way valve Solenoid valve...
  • Page 90 [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 91 [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 92 [Outdoor unit switch setting display (SW1 to SW10, except SW3)] Request codes: 73 to 82 0: Switch OFF 1: Switch ON 0: Switch OFF 1: Switch ON SW1, SW2, SW6, SW7 Data display Data display 00 00 00 00 00 01 00 01 00 02 00 02...
  • Page 93 [Indoor unit – Model setting information] (Request code : 162) Data display Display Model setting state Display Model setting state PEAD-A·AA PEAD-A·AA See the table on the right. PVA-A·AA PLA-A·BA PEA-A·AA PCA-A·KA PKA-A·HA(L)/KA(L) PEAD-A·AA PEAD-A·AA [Indoor unit – Capacity setting information] (Request code 163 ) Data display Display Capacity setting state...

  • Page 94: Disassembly Procedure

    DISASSEMBLY PROCEDURE PUZ-HA30NHA5 PUZ-HA36NHA5 OPERATING PROCEDURE PHOTOS & ILLUSTRATION 1. Removing the service panel and top panel Figure 1 (1) Remove the service panel fixing screws (3 for front/ 5 x 12), then slide the service panel downward to remove it.
  • Page 95 OPERATING PROCEDURE PHOTOS 3. Removing the electrical parts box Photo 3 (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) Controller circuit board(C.B.) (3) Disconnect the power supply cable from terminal block. (4) Disconnect the indoor/outdoor connecting wire from Electrical terminal block.
  • Page 96 OPERATING PROCEDURE PHOTOS Photo 4 4. Removing the thermistor <2-Phase Pipe> (TH6) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Disconnect the connector TH7/6 (RD) on the controller Heat circuit board in the electrical parts box. (See Photo 3) exchanger (4) Loosen the fastener for the lead wire in the electrical parts box.
  • Page 97 OPERATING PROCEDURE ILLUSTRATION 8. Removing the thermistor <Ref. check> (TH33) (1) Remove the service panel. (See Figure 1) (2) Disconnect the connector, TH33 (YE), on the controller circuit board in the electrical parts box. (See Photo 3) (3) Loosen the fastener and clamp for the lead wire on the controller circuit board in the electrical parts box.
  • Page 98 OPERATING PROCEDURE PHOTOS Photo 9 11. Removing the reactor (DCL) and capacitor (CB) Reactor (1) Remove the service panel. (See Figure 1) Electrical parts box (DCL) (2) Remove the top panel. (See Figure 1) (3) Remove the electrical parts box. (See Photo 3) [Removing the reactor] (4) Remove the reactor fixing screws (4 for rear/4 ×...
  • Page 99 OCH607...
  • Page 100 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN New publication, effective Oct. 2015 CCopyright 2015 MITSUBISHI ELECTRIC CORPORATION Specifications are subject to change without notice. Distributed in Oct. 2015 No. OCH607 Made in Japan...

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