Mitsubishi Electric CITY MULTI PUHY-P200M-B1-BM Service Handbook
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Mitsubishi Electric CITY MULTI PUHY-P200M-B1-BM Service Handbook

Mitsubishi Electric CITY MULTI PUHY-P200M-B1-BM Service Handbook

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AIR CONDITIONERS CITY MULTI
PUHY-P200M-B1-BM/PUHY-P250M-B1-BM
Models
Service Handbook

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Summary of Contents for Mitsubishi Electric CITY MULTI PUHY-P200M-B1-BM

  • Page 1 AIR CONDITIONERS CITY MULTI PUHY-P200M-B1-BM/PUHY-P250M-B1-BM Models Service Handbook...

  • Page 2: Table Of Contents

    CONTENTS Electrical Wiring Diagram [1] Electrical Wiring Diagram ....................... 2 Refrigerant Circuit [1] Refrigerant Circuit Figure......................3 III Control [1] Functions and Factory Settings of the Dipswitches ..............4 IV Test Run Mode [1] Standard Operation Data (Reference Data) ................5 Troubleshooting [1] Check Code Lists........................

  • Page 3: Electrical Wiring Diagram

    [ I Electrical Wiring Diagram ] I Electrical Wiring Diagram [1] Electrical Wiring Diagram POWER-BOARD White Blue DS (Diode stack) Power source Gate amp board 200V 3 phase (G/A PKG) 50/60Hz Blue Blue Connecting to the CNDR1 CN15V1 indoor unit, remote 1 2 3 4 (9P) (14P)

  • Page 4: Refrigerant Circuit

    [ II Refrigerant Circuit ] II Refrigerant Circuit [1] Refrigerant Circuit Figure 1. Outdoor unit - 3 -...

  • Page 5: Control

    [ III Control ] III Control [1] Functions and Factory Settings of the Dipswitches 1. Outdoor unit (1) Main board Function according to switch setting Switch setting timing Switch Function Set to 00 or 51-100 with the dial switch Unit address setting (Note 2) For self diagnosis/ Refer to the LED monitor display on the outdoor unit board.

  • Page 6: Standard Operation Data (Reference Data)

    [ IV Test Run Mode ] IV Test Run Mode [1] Standard Operation Data (Reference Data) 1. PUHY (1) Cooling operation Outdoor unit model Operation PUHY-P200 PUHY-P250 Ambient Indoor 27/19 tempera- Outdoor 35/24 ture °C No. of connected units Unit Indoor No.
  • Page 7 [ IV Test Run Mode ] (2) Heating operation Outdoor unit model Operation PUHY-P200 PUHY-P250 Ambient Indoor 20/- tempera- Outdoor 7.0/6.0 ture °C No. of connected units Unit Indoor No. of units in opera- unit tion Operat- ing condi- Model tions Main pipe Piping...

  • Page 8: Check Code Lists

    [ V Troubleshooting ] V Troubleshooting [1] Check Code Lists Searched unit Error Code Error code definition Notes 0403 Serial communication error 0900 Test run mode 1102 Abnormal discharge air temperature 1111 Low pressure saturation temp. sensor (TH2) Liquid level detection temper- 1112 ature sensor (TH3) Abnormal low pressure...
  • Page 9 [ V Troubleshooting ] Searched unit Error Code Error code definition Notes Gas side pipe (TH23) Pipes on the OA processing 5103 unit (gas side) (TH3) Outdoor liquid level detection (TH3) Pipes on the OA processing Temperature sensor unit (TH1) 5104 failure Liquid level detection (TH4)

  • Page 10: Preliminary Error Code Lists (Outdoor Unit Only)

    [ V Troubleshooting ] [2] Preliminary error Code Lists (Outdoor unit only) Preliminary error code Contents of preliminary error 1202 Abnormal discharge air temp. or discharge air temp. sensor preliminary failure (TH1) 1205 Piping temp. sensor preliminary failure (TH5) 1211 Low pressure saturation temp.

  • Page 11: Responding To Error Display On The Remote Controller

    [ V Troubleshooting ] [3] Responding to Error Display on the Remote Controller 1. Mechanical system Error definition and error Error Code Cause Check method and remedy detection method 0403 Serial commu- Serial communication er- (1) Faulty wiring Check for wiring between the con- nication error ror between the main nector (CNRS3B) on the main board...
  • Page 12 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 1111 Saturation 1. If the saturation temp. (1) Gas leak, gas shortage Check the refrigerant amount. temp. sensor sensor TH2 or temp. (2) Light-load operation Check operating conditions and op- sensor for liquid level eration status of indoor/outdoor...
  • Page 13 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 1143 Shell tempera- 1. If the shell tempera- (1) Gas leak, gas shortage Check the refrigerant amount. ture sensor of ture sensor of com- (2) Heavy-load operation Check operation conditions and op- compressor...
  • Page 14 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 1302 Abnormal high 1. If the pressure of (1) LEV failure on the indoor Perform a heating operation and 2.74MPa [397psi] or pressure 1 unit check the operation.
  • Page 15 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 1302 Abnormal high If the pressure of (1) Inner pressure drop due to Check the high pressure sensor. pressure 2 0.098MPa [14psi] or low- a leakage.
  • Page 16 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 2503 Drain sensor When a short or an open (1) Thermistor failure Check the thermistor resistance. failure is detected during opera- (2) Connector contact failure 0°C [32°F]: 15kohm tion (cannot be detected (loose connector)
  • Page 17 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 4108 Overcurrent 1. First detection (1) Overload operation that Check the unit working condition. protection If 51C2 is started dur- exceeds unit use limit ing the operation of (2) Power supply error Check the voltage of the power sup-...
  • Page 18 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 4116 Fan rotation 1. If the fan rotation (1) The connector for fan rota- Check whether the connector for fan speed abnor- speed is detected to tion speed detection rotation speed detection (CN33) on mality...
  • Page 19 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 4121 Harmonics ac- Active filter (Communica- (1) Connecting switch to the Turn the connecting switch to the ac- tion device er- tion error to PAC- active filter in the indoor tive filter in the indoor unit (DIP KB51AAC)
  • Page 20 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 4220 Bus voltage If Vdc 220V or less is de- (1) Power supply environment Check whether the unit makes an in- drop protection tected during Inverter op- stantaneous stop when the detec- eration.
  • Page 21 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 4230 Heatsink over- If the cooling fan opera- (1) Air passage blockage Check that the heat sink cooling air heat protection tion for 5 minutes or more passage is not blocked.
  • Page 22 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 4250 IPM / Bus volt- When an error signal of (1) Inverter output related Check the inverter. age abnormali- IPM is detected (2) Same as 4230 error Check 4230 error.
  • Page 23 [ V Troubleshooting ] Temperature sensor failure (indoor unit) Error definition and error Error Code Cause Check method and remedy detection method 5101 Air inlet If a short or an open is (1) Thermistor failure Check the thermistor resistor. detected during thermo- (2) Connector contact failure 0°C [32°F]: 15 kohm stat ON, the outdoor unit...
  • Page 24 [ V Troubleshooting ] Temperature sensor failure (outdoor unit) Error definition and error Error Code Cause Check method and remedy detection method 5101 Discharge 1. When a short (high (1) Thermistor failure Check thermistor resistance. (TH1) (TH11) temperature intake) or (TH12) an open (low tempera- ture intake) of the ther-...
  • Page 25 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 5110 Inverter radia- When the heat sink tem- (1) THHS sensor failure Check for short circuit in THHS sen- tor plate failure perature (THHS) 40°C sor.
  • Page 26 [ V Troubleshooting ] Error definition and error Error Code Cause Check method and remedy detection method 5201 High pressure 1. If the high pressure (1) High pressure sensor fail- Check the high pressure sensor. sensor (out- sensor detects door unit) 0.098MPa [14psi] or (2) Pressure drop due to re- less during the opera-...
  • Page 27 [ V Troubleshooting ] 2. Transmission error Error Error definition and error detec- Cause Check method and remedy Code tion method 6600 Address overlaps (1) Two or more remote controllers When 6600 error occurs, deactivate the The error is detected when the for the outdoor units, the indoor error (stop key operation) by the remote same address is transmitted...
  • Page 28 [ V Troubleshooting ] Error Error definition and error detec- Check method and remedy Code tion method 6602 Transmission processor hard- (1) When the wiring work of or the polarity of either the indoor or outdoor trans- ware error mission line is performed or is changed while the power is on, the transmitted data will collide, the wave shape will be changed, and an error will be detect- Although "0"...
  • Page 29 [ V Troubleshooting ] Error Error definition and error detec- Cause Check method and remedy Code tion method 6603 Transmission circuit bus-busy (1) The transmission processor No noise indicates that the error source cannot be transmitted as the controller is a failure. 1.
  • Page 30 [ V Troubleshooting ] (1) System with one outdoor unit Error Code Error definition and error detection method 6607 No ACK abnormality The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is transmitted six times in a row with 30 seconds interval, the error is detected on the transmission side.) Note: The address/attribute appeared on the display on the remote controller indicates the controller which did not provide the response (ACK).
  • Page 31 [ V Troubleshooting ] (2) Grouping of units in a system with multiple outdoor units Error Code Error definition and error detection method 6607 No ACK abnormality The error is detected when no acknowledgement (ACK signal) is received after the (Contin- transmission.
  • Page 32 [ V Troubleshooting ] (2) Grouping of units in a system with multiple outdoor units Error Code Error definition and error detection method 6607 No ACK abnormality The error is detected when no acknowledgement (ACK signal) is received after the (Contin- transmission.
  • Page 33 [ V Troubleshooting ] (3) System connected to the system controllers (MELANS) Error Code Error definition and error detection method 6607 No ACK abnormality The error is detected when no acknowledgement (ACK signal) is received after the (Contin- transmission. (eg. When the data is transmitted six times in a row with 30 seconds ued) interval, the error is detected on the transmission side.) Note: The address/attribute appeared on the display on the remote controller...
  • Page 34 [ V Troubleshooting ] Error Code Error definition and error detection method 6607 No ACK abnormality The error is detected when no acknowledgement (ACK signal) is received after the (Contin- transmission. (eg. When the data is transmitted six times in a row with 30 seconds ued) interval, the error is detected on the transmission side.) Note: The address/attribute appeared on the display on the remote controller...
  • Page 35 [ V Troubleshooting ] (3) System connected to the system controllers (MELANS) Error Code Error definition and error detection method 6607 No ACK abnormality The error is detected when no acknowledgement (ACK signal) is received after the (Contin- transmission. (eg. When the data is transmitted six times in a row with 30 seconds ued) interval, the error is detected on the transmission side.) Note: The address/attribute appeared on the display on the remote controller...
  • Page 36 [ V Troubleshooting ] (4) Errors that are not limited to a particular system Error Code Error definition and error detection method 6607 No ACK abnormality The error is detected when no acknowledgement (ACK signal) is received after the (Contin- transmission.
  • Page 37 [ V Troubleshooting ] Error Error definition and error detec- Cause Check method and remedy Code tion method 6608 No response (1) The transmission line work is 1) When an error occurs at commission- When no response command performed or the polarity is is returned although acknowl- changed while the power is on, Turn off the power source of the out-...
  • Page 38 [ V Troubleshooting ] 3. System error Error Error definition and error Error source Cause Check method and remedy Code detection method 7100 Outdoor unit Total capacity error (1) The model total of indoor 1) Check the model total (capacity units in the system with code total) of indoor units con- The model total of indoor...
  • Page 39 [ V Troubleshooting ] Error Error definition and error Error source Cause Check method and remedy Code detection method 7102 Outdoor unit Error in the number of (1) Number of indoor units 1) Check whether the number of connected units connected to the outdoor units connected to the outdoor terminal block (TB3) for in-...
  • Page 40 Service Handbook PUHY-P200M-B1-BM/PUHY-P250M-B1-BM Issued in Sep. 2006 HWE06050 New publication effective Sep. 2006. Printed in Japan Specifications subject to change without notice.

This manual is also suitable for:

City multi puhy-p250m-b1-bmCity multi puhy-p200City multi puhy-p250

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