Mitsubishi 250 YHA-A- Manuals

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 ...

6 4 FEATURES CHARGELESS SYSTEMPRE-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 refrigerantlevel regardless of the length (30m max. and 5m min.) of piping. The additional r...

7 5 SPECIFICATIONS AA kW W kW * /min(L/s) dBdB mm(in.)mm(in.)mm(in.) kg(lbs) kg(lbs) L mm(in.)mm(in.) Power supply (phase, cycle, voltage) Running current Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices Crankcase heaterHeat exchanger Fan...

8 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE OCT A VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μ bar) BAND CENTER FREQUENCIES, Hz NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 PUHZ-P200YHAPUHZ-P250YHAPUHZ-P200YHA3PUHZ-P250YHA3 COOLING MO...

10 Rear piping cover Front piping cover Side Air Intake Handle for moving Piping Knockout Hole Details 63 73 23 55 27 92 65 40 45 Power supply wiring hole (2- : 27Knockout) Rear trunking hole (Knockout) Rear piping hole (Knockout) : 92 92 27 23 63 73 40 75 92 55 19 Power supply wiring hole (2- : 27K...

11 PUHZ-P200YHA PUHZ-P250YHA PUHZ-P200YHA3 PUHZ-P250YHA3 TH7/6(RED) TH3 (WHT) TH4 (WHT) TH7 TH6 TH3 TH4 4 1 2 1 2 1 t t t t 63H LEV-A (WHT) LEV-A M LED1 LED2 6 1 CNVMNT (WHT) 3 1 CNMNT (WHT) CNM (WHT) 5 1 3 5 5 14 1 63H (YLW) 3 1 CN2 (WHT) 7 7 1 CN2 (WHT) 7 7 1 CNDM (WHT) CN3S (WHT) CN51 (WHT) 1 3 1...

12 9 WIRING SPECIFICATIONS 9-1. FIELD ELECTRICAL WIRING (power wiring specifications) S1 S2 S3 S1 S2 S3 A-Control Outdoor Unit 3 poles isolator 400V 3 phase Isolator A-Control Indoor Unit P200, P250 Outdoor unit model P200, 250 Outdoor unitPower supply PhaseFrequency & Voltage 3N~(3ph 4-wires), ...

14 9-3. INDOOR – OUTDOOR CONNECTING CABLE Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections).Intermediate connections can lead to communication errors if water enters the cables and causes insufficient insulation to earth or a poor electrical ...

17 Outdoor heat exchanger Thermistor(TH3) Thermistor(TH6) Thermistor(TH7) Distributor Service port(check) Service port(check) Accumulator Compressor Refrigerant GAS pipe : 25.4( : 1 inch) Refrigerant LIQUID pipeP200 : : 9.52( : 3/8 inch) P250 : : 12.7( : 1/2 inch) Stop valve(with service port) 4-way...

18 1. Refrigerant recovering (pump down) Perform the following procedures to recover refrigerant when moving the indoor unit or the outdoor unit. 1 Turn on the power supply (circuit breaker). w When power is supplied, make sure that “CENTRALLY CONTROLLED” is not displayed on the remote controller. I...

19 11 TROUBLESHOOTING 11-1. TROUBLESHOOTING <Error code display by self-diagnosis and actions to be taken for service (summary)> Present and past error codes are logged and displayed on the wired remote controller and control board of outdoor unit. Actions to be taken for service, which depend...

20 [TEST] button Pipe (liquid) temperature Displays the remainingtest run time. "TEST RUN" and the currently selectedoperation mode are displayed altemately. • In case of test run, the OFF timer will be activated, and the test run will automatically stop after 2 hours.• The room temperature ...

21 ON/OFF TEMP FAN VANE MODE CHECK LOUVER TEST RUN AUTO STOP AUTO START h min TEST RUN RESET SET CLOCK , 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 t...

22 11-3. HOW TO PROCEED "SELF-DIAGNOSIS" 11-3-1. When a Problem Occurs During Operation If a problem occurs in the air conditioner, the indoor and outdoor units will stop,and the problem is shown in the remote controller display. [CHECK] and the refrigerant address are displayed on the tempe...

24 • "CHECK" lights, and refrigerant address "00" blinks.• Check that the remote controller's display has stopped before continuing. • Select the refrigerant address of the indoor unit for the self-diagnosis.Note: Set refrigerant address using the outdoor unit’s DIP switch (SW1). (Fo...

26 11-4. SELF-DIAGNOSIS ACTION TABLE <Abnormalities detected when the power is turned on> (Note 1) Refer to indoor unit section for code P and code E. (P.32, 33) Error Code Abnormal point and detection method Case Judgment and action None — 1 No voltage is supplied to terminal block(TB1) of ou...

28 Error Code Abnormal point and detection method Judgment and action U1 (1302) High pressure (High-pressure switch 63H worked) Abnormal if high-pressure switch 63H worked ( w ) during compressor operation. w 4.15 MPa 63H: High-pressure switch 1 Short cycle of indoor unit 2 Clogged filter of indoor ...

34 A6 (6606) Communication error with communica-tion processor Defective communication between unit processor and transmission processorNote) The address and attribute displayed at remote controller indicate the con-troller that detected abnormality. 1 Data of transmission proces- sor or unit proces...

35 Error Code Abnormal point and detection method Case Judgment and action A7 (6607) 5. If displayed address or attribute is FRESH MASTER, indoor unit detects abnormality when indoor unit transmits signal to FRESH MASTER and there was no reply (ACK). 1 During sequential operation of indoor unit and ...

36 11-5. TROUBLESHOOTING BY INFERIOR PHENOMENA Phenomena Factor Countermeasure 1. Remote controller display does not work. 2. “PLEASE WAIT” display is remained on the remote controller. 3. When pressing the remote controller operation switch, the OPERATION display is appeared but it will be turned o...

39 AC 198V to AC 264V? AC 198V to AC 264V? AC 198V to AC 264V? DC 12V to DC 16V? DC 12V to DC 16V? NO YES NO YES NO YES YES NO YES NO 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. Check the voltage am...

40 AC 198V to AC 264V? Are there looseness or disconnection of the indoor/ outdoor connecting wire? Is anything displayed? DC 17V to DC 28V? Is “E8” displayed? Can all the indoor unit be operated? Check the voltage between S2 and S3 on the terminal block of the outdoor unit. NO YES Not lighting. Bli...

49 <Output pulse signal and the valve operation> (2) Linear expansion valve operation Open Extra tightning (about 32 pulse) Pulse number 500 pulseOpening a valveall the way Close V alve position (capacity) Opening a valve : 8 → 7 → 6 → 5 → 4 → 3 → 2 → 1 → 8 Closing a valve : 1 → 2 → 3 → 4 → 5 ...

50 Main body Lead wire Stopper Coil Be sure to attach the stopper. A (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. <How to detach the coil> Hold the lower par...

51 11-8. EMERGENCY OPERATION (1) When the error codes shown below are displayed on outdoor unit or microcomputer for wired remote controller or indoor unit has a failure, but no other problems are found, emergency operation will be available by setting the emergency opera- tion switch (SWE) to ON an...

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 data Room temperature (TH1) Indoor pipe temperature (TH2) Indoor 2-phase pipe temperature...

54 Outdoor noise filter circuit boardPUHZ-P200YHA PUHZ-P250YHAPUHZ-P200YHA3 PUHZ-P250YHA3 LI1, LI2, LI3, NIPOWER SUPPLY LI1-LI2/LI-LI3/LI3-LI1 : AC380/400/415V inputLI1-NI/LI2-NI/LI3-NI : AC220/230/240V input(Connect to the terminal block (TB1)) GD1 Connect to the earth CNAC1, CNAC2AC220/230/240V (C...

55 Brief Check of POWER MODULE W Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken.1. Check of POWER MODULE 1 .Check of DIODE circuit L1 - P1 , L2 - P...

56 Switch Type of switch Dip switch SW1 1 2 No. Function Effective timing Action by the switch operation Forced defrost + 1 Start Normal When compressor is working in heating operation. + Abnormal history clear Refrigerant address setting When power supply ON Clear Normal off or operating SW4 1 6 5 ...

57 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 time...

58 <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 CN...

60 <Outdoor unit operation monitor function>[When optional part “A-Control Service Tool(PAC-SK52ST)” is connected to outdoor controller board(CNM)] Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by controlling DIP SW2 on “A-Co...

64 1 ON 2 3 4 5 6 °C Discharge superheat SHd0~255 Cooling = TH4-TH6 Heating = TH4-TH5 0~255(When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.) °C Subcool SC0~130 Cooling = TH6-TH3 Heating = TH5-TH4 0~130(When the temperature is 100°C or more, hu...

66 SW2 setting Display detail Explanation for display Unit 1 ON 2 3 4 5 6 Pulse LEV-A opening pulse on error occurring0~480 0~480(When it is 100 pulse or more, hundreds digit, tens digit and ones digit are displayed by turns.)(Example) When 130 pulse; 0.5 secs. 0.5secs. 2 secs. : Indoor room tempera...

67 SW2 setting Display detail Explanation for display Unit : 0~255(When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.)(Example) When 150°C; 0.5 secs. 0.5secs. 2 secs. Subcool on error occurring SC0~130 Cooling = TH6-TH3 Heating = TH5-TH2 0~130(Wh...

69 12 FUNCTION SETTING Function Settings Mode No. Setting No. : Initial setting (when sent from the factory) Remarks Power failure automatic recoveryIndoor temperature detecting 1 LOSSNAY connectivity Power supply voltageAuto operating modeFrost prevention temperatureHumidifier control Change of def...

71 Select mode No. 02 (room temperature detection position). Select setting No. 03 (remote controller fixed). (Use and .) Enter the setting. (Press .) Finished End function display. (Press and at the same time.) Example:Selecting room temperaturedetection position YES YES NO NO Selecting functions u...

74 12-2. FUNCTION SELECTION OF REMOTE CONTROLLER The setting of the following remote controller functions can be changed using the remote controller function selection mode.Change the setting when needed. Item 1 1.Change language("CHANGE LANGUAGE")2.Function limit("FUNCTION SELECTION"...

76 13 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 13-1. HOW TO "MONITOR THE OPERATION DATA" • Turning on the [Monitoring the operation data] (1) (2) (3) (4) (5) (6) (7) (1) Press the TEST button for 3 seconds so that [ Maintenance mode] appears on the screen (at ). (2) Press the C...

86 14 EASY MAINTENANCE FUNCTION L Reduces maintenance work drastically. L 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 forinverter m...

87 L Data measurement When the operation is stabilized, measure operation data as explained below. (4) Press the [TEMP] buttons ( and ) to select the desired refrigerant address. [Screen ] (5) Select the type of data to be displayed. After selecting, go to step (6). Compressor information MENU butto...

88 14-2. GUIDE FOR OPERATION CONDITION Inspection item Result Power supply Loose con- nection Breaker Good Retightened Terminal block Outdoor Unit Good Retightened Indoor Unit Good Retightened (Insulation resistance) M (Voltage) V Accumulated operating time Time Number of ON/OFF times Times Current ...

89 OPERATING PROCEDURE PHOTOS & ILLUSTRATION PUHZ-P200YHA PUHZ-P250YHA PUHZ-P200YHA3 PUHZ-P250YHA3 1. Removing the service panel and top panel (1) Remove 3 service panel fixing screws (5 × 10) and slide the hook on the right downward to remove the service panel. (2) Remove screws (3 for front, 3...

91 10. Removing the high pressure switch (63H) (1) Remove the service panel. (See Figure 1.) (2) Remove the top panel. (See Figure 1.) (3) Remove 3 right side panel fixing screws (5 × 10) in the rear of the unit and remove the right side panel. (4) Pull out the lead wire of high pressure switch. (5)...

HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN C Copyright 2007 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Feb. 2009 No.OCH424 REVISED EDITION-A PDF 7Distributed in Sep. 2007 No.OCH424 PDF 8Made in Japan New publication, effective Feb. 2009Specification...