Related Manuals for Bosch BMS500-AAU009-0AHXXA
Summary of Contents for Bosch BMS500-AAU009-0AHXXA
- Page 1 Bosch Split-Type Ductless Air Conditioner / Heat Pump Climate 5000 AA Series Service Manual...
- Page 2 2 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 02.2018 | Bosch Thermotechnology Corp. Data subject to change...
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Page 3: Table Of Contents
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 3 Table of Contents Key to Symbols and Safety Instructions Troubleshooting 1.1 Key to symbols 8.1 Indoor unit error display 1.2 Safety 8.2 Outdoor unit error display 8.3 Diagnosis and solution... -
Page 4: Key To Symbols And Safety Instructions
4 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 1 Key to Symbols and Safety Instructions 1.2 Safety Please read safety precautions before installation 1.1 Key to symbols Warnings WARNING: The information contained in the manual is intended for Warnings in this document are identifi... - Page 5 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 5 WARNING: ELECTRICAL CAUTION: For all electrical work, follow all local and national wiring Install condensate drainage piping according to the standards, regulations, and the Installation Manual.
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Page 6: Part Names And Model Numbers
6 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 2 Part Names and Model Numbers 2.1 Model numbers Capacity Voltage Indoor Units Outdoor Units 115V BMS500-AAU009-0AHXXA BMS500-AAS009-0CSXXA 115V BMS500-AAU012-0AHXXA BMS500-AAS012-0CSXXA 208-230V BMS500-AAU009-1AHXXA... -
Page 7: Dimensions
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 7 3 Dimensions 3.1 Indoor unit Figure 2 Model W x D x H (mm) W x D x H (inch) Mounted plate BMS500-AAU009-0AHXXA... - Page 8 8 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 31.7" (805mm) 16.8" (427.9mm) 6.5"(163mm) 8.8" (224.6mm) Indoor unit outline Right rear wall hole Left rear wall hole 2.5" (65mm) 2.5" (65mm) 4.4"...
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Page 9: Outdoor Unit
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 9 3.2 Outdoor unit More than 30cm(11.8in) More than 60cm(23.6in) (Service space) More than 30cm(11.8in) More than 60cm(23.6in) More than 70cm(27.6in) Figure 5 Outdoor unit clearances... -
Page 10: Refrigerant Cycle Diagram
1 0 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 4 Refrigerant Cycle Diagram For indoor models: BMS500-AAU009-0AHXXA, BMS500-AAU012-0AHXXA, For outdoor models: BMS500-AAS009-0CSXXA, BMS500-AAS012-0CSXXA INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) - Page 11 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 11 For indoor models: BMS500-AAU009-1AHXXA, BMS500-AAU012-1AHXXA, BMS500-AAU018-1AHXXA, BMS500-AAU024-1AHXXA, For outdoor models: BMS500-AAS009-1CSXXA, BMS500-AAS012-1CSXXA BMS500-AAS018-1CSXXA, BMS500-AAS024-1CSXXA INDOOR OUTDOOR Electronic expansion valve LIQUID SIDE LIQUID SERVICE...
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Page 12: Wiring Diagram
1 2 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 5 Wiring Diagram 6.4 First time installation Air purging with vacuum pump Refer to wiring diagram in the installation manual (IOM) or on the unit. -
Page 13: Adding The Refrigerant To An Existing System
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 13 6.5 Adding the refrigerant to an existing system 6.6 Re-installation / indoor unit needs to be repaired Collecting the refrigerant into the outdoor unit (passive recovery) -
Page 14: Re-Installation While The Outdoor Unit Needs To Be Repaired
1 4 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 6.7 Re-installation while the outdoor unit needs to be repaired Refrigerant charging Evacuation for the whole system Liquid service valve Liquid service... -
Page 15: Operation Characteristics
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 15 6.8 Operation characteristics Temperature Cooling operation Heating operation Drying operation 62℉ - 90℉ 32℉ - 86℉ 50℉ - 90℉ Room temperature (17℃ - 32℃) (0℃... -
Page 16: Electronic Functions
1 6 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 7 Electronic Functions When ECO function(optional) is activated,the “ ” illuminates gradually one by one as 7.1 Abbreviation T1: Indoor room temperature in one second intervals. -
Page 17: Operation Modes And Functions
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 17 7.4 Operation modes and functions 7.4.3.4 Defrosting mode AC will enter the defrosting mode according to the value of T3 and the value range of 7.4.1 Fan mode... -
Page 18: Bosch Thermotechnology Corp. | 02.2018
1 8 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 7.4.5 Drying mode 7.4.8 Sleep function Indoor fan speed is fi xed at breeze (low fan) and can’t be changed. The louver angle The sleep function is available in cooling, heating or auto mode. -
Page 19: Bosch Thermotechnology Corp. | 02.2018
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 19 7.4.13 Self clean(optional) For heat pump models which are provided with this function, after running in cooling or drying mode, if the user press “Self Clean” button on remote controller, fi rstly, indoor unit runs in fan only mode for a while, then low heat operation and fi... -
Page 20: Bosch Thermotechnology Corp. | 02.2018
2 0 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 7.4.16 Point check function (engineering troubleshooting mode) Press the LED DISPLAY or LED or MUTE button of the remote controller three times, and then press the AIR DIRECTION or SWING button three times in ten seconds, the buzzer will keep ring for two seconds. -
Page 21: Bosch Thermotechnology Corp. | 02.2018
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 21 When the AC enter into information enquiry status, it will display code value in next 25s, the details are as follows: Enquiry information... -
Page 22: Troubleshooting
2 2 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 8 Troubleshooting Safety WARNING: Electricity power is still kept in capacitors even the power supply is shut off . Do not forget to discharge the electricity power in capacitor. -
Page 23: Indoor Unit Error Display
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 23 8.1 Indoor unit error display Operation lamp Timer lamp Display LED STATUS Indoor unit EEPROM parameter error 1 time Indoor / outdoor units communication error... -
Page 24: Outdoor Unit Error Display
2 4 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 8.2 Outdoor unit error display BMS500-AAS009-0CSXXA, BMS500-AAS012-0CSXXA +5VDC +5VDC +5VDC Figure 17 02.2018 | Bosch Thermotechnology Corp. Data subject to change... - Page 25 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 25 BMS500-AAS009-1CSXXA, BMS500-AAS012-1CSXXA + 12V DC + 12V DC + 12V DC pulse wave between (+4) - GND + 12V DC pulse wave between (+2) - GND...
- Page 26 2 6 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual BMS500-AAS018-1CSXXA, BMS500-AAS024-1CSXXA 6 5 4 3 2 1 +5VDC +5VDC +5VDC DC positive pole P: 315VDC DC negative pole: GND drive power voltage: +15VDC...
- Page 27 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 27 After power on, LED3 (Green color) and LED2 (Red color) will be fl ashing if the unit has some problems. Problems LED3 (Green)
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Page 28: Diagnosis And Solution
2 8 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 8.3 Diagnosis and solution 8.3.1 EEPROM parameter error diagnosis and solution(E0/F4) Error Code E0 (indoor) / F4 (outdoor) Malfunction decision conditions Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip. - Page 29 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 29 8.3.2 Indoor / outdoor unit’s communication diagnosis and solution(E1) Error Code Indoor unit does not receive the feedback from outdoor unit during 110 seconds and this condition Malfunction decision conditions happens four times continuously.
- Page 30 3 0 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual Remark: Remark: Use a multimeter to test the DC voltage between 2 port and 3 port of Use a multimeter to test the resistance of the reactor which does not outdoor unit.
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Page 31: Main Pcb
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 31 8.3.3 Zero crossing detection error diagnosis and solution (E2) Error Code When PCB does not receive zero crossing signal feedback for 4 minutes or the zero crossing signal time Malfunction decision conditions interval is abnormal. - Page 32 3 2 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 8.3.4 Fan speed has been out of control diagnosis and solution(E3) Error Code E3/F5 When indoor fan speed is too low (300RPM) for certain time, the unit will stop and the LED will display Malfunction decision conditions the failure.
- Page 33 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 33 Index 1: Indoor or Outdoor DC Fan Motor(control chip is in fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector.
- Page 34 3 4 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 8.3.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5) Error Code E4/E5/F1/F2/F3 Malfunction decision conditions If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED will display the failure.
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Page 35: Service Manual Bosch Climate 5000 Aa Series Split Type Ductless Air Conditioner / Heat Pump
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 35 Sensor locations Figure 28 T1 Indoor room temperature sensor position Figure 30 T2b-A,B,C,D,E evaporator suction/discharge temperature sensor position. Figure 29 T2 Evaporator coil temperature sensor position Bosch Thermotechnology Corp. - Page 36 3 6 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual Figure 32 T4 Outdoor ambient temperature sensor position Figure 31 T3 Condenser coil temperature sensor position Figure 33 T5 Compressor discharge temperature sensor position 02.2018 | Bosch Thermotechnology Corp.
- Page 37 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 37 8.3.6 Refrigerant Leakage Detection diagnosis and solution(EC) Error Code Defi ne the initial evaporator coil temperature T2 when the compressor just starts running as Tcool.
- Page 38 3 8 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 8.3.7 Overload current protection diagnosis and solution(F0) Error Code Malfunction decision conditions An abnormal current rise is detected by checking the specifi ed current detection circuit.
- Page 39 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 39 8.3.8 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0) Error Code When the voltage signal that IPM send to compressor drive chip is abnormal, the display LED will show Malfunction decision conditions “P0”...
- Page 40 4 0 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 8.3.9 Over voltage or too low voltage protection diagnosis and solution(P1) Error Code Malfunction decision conditions An abnormal voltage rise or drop is detected by checking the specifi ed voltage detection circuit.
- Page 41 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 41 8.3.10 High temperature protection of IPM module or compressor top diagnosis and solution(P2) Error Code Malfunction decision conditions If the sampling voltage is not 5V, the LED will display the failure.
- Page 42 4 2 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 8.3.11 Inverter compressor drive error diagnosis and solution(P4) Error Code An abnormal inverter compressor drive is detected by a special detection circuit, including...
- Page 43 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 43 Main parts check Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Figure 40 Temperature sensors: Room temp.(T1) sensor,...
- Page 44 4 4 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual Appendix 1 Resistance to Temperature value table for resistive sensors: T1,T2,T3,T4 (°C--K) °C °F K Ohm °C °F K Ohm °C °F K Ohm °C...
- Page 45 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 45 Appendix 2 Resistance to Temperature value table for resistive sensors: T5 (°C --K) °C °F K Ohm °C °F K Ohm °C °F K Ohm °C...
- Page 46 4 6 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual Appendix 3 (°F)=1.8 x (°C)+32 Figure 41 °C °F °C °F °C °F °C °F °C °F 69.8 123.8 179.6 235.4 24.8 71.6...
- Page 47 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 47 Compressor checking Measure the resistance value of each winding by using the tester. Figure 42 Resistance Value per Compressor Model Position ASN98D22UFZ ASM135D23UFZ...
- Page 48 4 8 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN;...
- Page 49 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 49 Suction pressure at the service port Cooling chart: °F (°C) IDT / ODT 75 (23.89) 85 (29.44) 95 (35) 105 (40.56) 115 (46.11) 70/59 10.1...
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Page 50: Disassembly Guide
5 0 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 9 Disassembly Guide This part is for reference, the photos may have slight diff erences with your machine. 9.1 Indoor unit 9.1.1 How to Remove the lter Step1: Put your hands at A and B (Fig. - Page 51 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 51 9.1.4 How to Remove the panel assembly Step3: Press the locker A and B (Fig. 65), to loosen the indoor from the installation plate.
- Page 52 5 2 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 9.1.5 How to Remove the PCB (Fig. 68) 9.1.6 How to Remove the Electrical control box Step1: Press A to remove the terminal cover.
- Page 53 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 53 9.1.7 How to Remove the Chassis assembly Step3: Open the E-box (Fig. 71), to loosen the fan motor and louver motor connectors from the PCB.
- Page 54 5 4 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 9.1.8 How to Remove the Evaporator assembly CAUTION: Because the 24K indoor unit is relatively large and heavy, it must have two persons to implement the following steps.
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Page 55: Outdoor Unit
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 55 9.2 Outdoor unit Removing the fan assembly Remove the panel plate. Remove the nut fi xing the fan, and remove the fan. This part is for reference, the photos may have slight diff erence with your machine. - Page 56 5 6 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual Removing the electrical parts Disconnect the connector for fan motor from the electronic control board. After removing the panel plate and fan assembly, remove the connector for the compressor.
- Page 57 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 57 Removing the reversing valve Disconnect the electronic expansion valve wire (Fig. 85, pos. 4)from the control board First remove the panel plates and electrical parts.
- Page 58 5 8 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual Removing the compressor For models: BMS500-AAS012-0CSXXA, BMS500-AAS012-1CSXXA First remove the panel plates and electrical parts. Removing the panel plate Stop operation of the air conditioner and turn “OFF” the power breaker.
- Page 59 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 59 Removing the fan assembly Disconnect the connector for fan motor from the electronic control board. Remove the panel plate. Remove the hex nut fi xing the fan, and then remove the fan.
- Page 60 6 0 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual Removing the electrical parts Disconnect the electronic expansion valve wire. After removing the panel plate and fan assembly, remove the connectors for the compressor.
- Page 61 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 61 Removing the reversing valve Removing the compressor First remove the panel plates and electrical parts. First remove the panel plates and electrical parts.
- Page 62 6 2 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual For model: BMS500-AAS018-1CSXXA Removing the fan assembly Removing the panel plate Remove the panel plate. Stop operation of the air conditioner and turn “OFF” the power breaker.
- Page 63 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 63 Removing the electrical parts Disconnect the connector for fan motor from the electronic control board. After removing the panel plate and fan assembly, remove the connectors for the compressor and reactor.
- Page 64 6 4 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual Removing the reversing valve Disconnect the electronic expansion valve wire. First remove the panel plates and electrical parts. Recover refrigerant from the refrigerant circuit.
- Page 65 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 65 Removing the compressor For model: BMS500-AAS024-1CSXXA First remove the panel plates and electrical parts. Removing the panel plate Stop operation of the air conditioner and turn “OFF” the power breaker.
- Page 66 6 6 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual Removing the fan assembly Remove the panel plates. Compressor T3,T4,T5,sensor Pressure switch wire Remove the hex nut fi xing the fan, and then remove the fan.
- Page 67 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 67 Removing the electrical parts Disconnect the pressure switch connector. After removing the panel plate and fan assembly, remove the connector for the compressor.
- Page 68 6 8 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual Removing the reversing valve First remove the panel plates and electrical parts. Recover refrigerant from the refrigerant circuit. Remove the screw of the coil (Fig.134, pos.1) and then remove the coil.
- Page 69 Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 69 Removing the compressor First remove the panel plates and electrical parts. Recover refrigerant from the refrigerant circuit. Remove the discharge pipe and suction pipe with a burner.
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Page 70: Care And Maintenance
7 0 | Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump Service Manual 10 Care and Maintenance A clogged air conditioner can reduce the cooling effi ciency of your unit, and can also be bad for your health. Make sure to clean the fi lter once every two weeks. -
Page 71: Air Lter Reminders (Optional)
Service Manual Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump | 71 10.4 Maintenance – long periods of non-use Clean the large air fi lter with warm, soapy water. Be sure to use a mild detergent. - Page 72 United States and Canada Bosch Thermotechnology Corp. 65 Grove Street Watertown, MA 02472 Tel: 866-642-3198 Fax: 954-776-5529 www.boschheatingandcooling.com BTC 770002101 A / 02.2018...