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General| Brand | Bosch |
|---|---|
| Model | BMS500-AAU009-1AHCXB |
| Category | Air Conditioner |
| Language | English |
Defines warning keywords used in the document for risk assessment.
Provides critical safety warnings regarding installation, electrical hazards, and unit usage.
Lists outdoor unit models with their capacity and maximum zone configurations.
Lists various indoor unit models based on capacity and type.
Details possible combinations of indoor units for different zone capacities.
Provides physical dimensions and mounting hole specifications for outdoor units.
Illustrates the refrigerant cycle for the 18K Multi Zone Regular outdoor unit.
Illustrates the refrigerant cycle for the 18K Multi Zone Max Performance outdoor unit.
Illustrates the refrigerant cycle for 27K Multi Zone Regular and Max Performance units.
Illustrates the refrigerant cycle for the 36K Multi Zone Regular outdoor unit.
Illustrates the refrigerant cycle for the 36K Multi Zone Max Performance outdoor unit.
Illustrates the refrigerant cycle for the 48K Multi Zone Regular outdoor unit.
Illustrates the refrigerant cycle for the 48K Multi Zone Max Performance outdoor unit.
Provides the wiring diagram for the 18K Multi Zone Regular outdoor unit.
Provides the wiring diagram for the 18K Multi Zone Max Performance outdoor unit.
Provides wiring diagrams for 27K Multi Zone Regular and Max Performance units.
Provides the wiring diagram for the 36K Multi Zone Regular outdoor unit.
Provides the wiring diagram for the 36K Multi Zone Max Performance outdoor unit.
Provides the wiring diagram for the 48K Multi Zone Regular outdoor unit.
Provides the wiring diagram for the 48K Multi Zone Max Performance outdoor unit.
Specifies torque values for tightening various tube sizes during installation.
Details power cord specifications and AWG wire sizes for different capacities.
Outlines maximum allowable piping lengths and height differences between units.
Step-by-step guide for purging air from the system using a vacuum pump.
Procedure for charging refrigerant into an existing system.
Instructions for recovering refrigerant into the outdoor unit.
Procedure for evacuating the entire refrigeration circuit.
Details operating temperature ranges for COOL, HEAT, and DRY modes.
Lists and defines abbreviations for various temperature sensors.
Specifies voltage, frequency, and current limits for electronic components.
Defines the delay time before compressor restarts after shutdown or protection.
Details how discharge temperature affects compressor frequency and operation.
Describes actions taken if the outdoor fan speed deviates from normal ranges.
Explains inverter protection against faults related to current, voltage, or temperature.
Details the system's behavior and protection under low voltage conditions.
Describes current limit protection based on outdoor ambient temperature (T4).
Explains system shutdown if communication between indoor and outdoor units is lost.
Details protection triggered by high condenser coil temperatures.
Describes protection measures to prevent freezing of indoor units.
Details system behavior and protection at low outdoor ambient temperatures.
Explains the process and conditions for compressor oil return.
Introduces control logic and functions, including capacity calculation.
Explains the formula and method for calculating total capacity request.
Details conditions for entering and exiting defrost mode.
Explains how outdoor fan speed is adjusted based on temperature in cooling mode.
Explains how outdoor fan speed is adjusted based on temperature in heating mode.
Describes EXV control logic for different modes and system states.
Details the operation of the four-way valve in heating, defrost, and other modes.
Lists codes displayed on the outdoor PCB's LED for various operating states.
Explains how to use the SW1 button to check unit status and display codes.
Highlights electrical hazards and capacitor discharge precautions before troubleshooting.
Lists error codes, their status, and recommended actions for outdoor units.
Provides a matrix to quickly diagnose potential causes based on error codes.
Identifies components and connectors on the PCB for the 18K Regular model.
Identifies components and connectors on the PCB for 27K, 36K, and 18K/27K Max units.
Identifies components and connectors on the PCB for 48K and 36K/48K Max units.
Diagnoses and provides solutions for EEPROM communication issues.
Troubleshoots communication errors between indoor and outdoor units.
Addresses communication malfunctions between IPM and main control boards.
Diagnoses issues with outdoor temperature and discharge sensors (EC 52-56, EC 50).
Troubleshoots over-voltage or under-voltage protection errors.
Provides solutions for PFC module protection errors.
Troubleshoots issues related to outdoor fan speed errors.
Diagnoses and resolves high pressure protection faults.
Troubleshoots low pressure protection faults.
Addresses current overload, zero speed, and compressor speed errors (PC 08/44/46/49).
Troubleshoots errors related to compressor discharge temperature.
Diagnoses and resolves high temperature protection of the condenser.
Provides troubleshooting steps for IPM module malfunctions.
Troubleshoots errors related to high compressor top temperature.
Addresses issues with lack phase failure in the outdoor DC fan motor.
Troubleshoots compressor lack phase protection errors.
Provides solutions for outdoor unit IR chip drive failures.
Troubleshoots communication errors between adapter and main control boards.
Guides on checking temperature sensor resistance values.
Details how to measure compressor winding resistance.
Explains how to perform continuity checks on the IPM module.
Describes voltage and resistance checks for the four-way valve.
Guides on checking the resistance value of the EXV coil.
Instructions for removing the outer panels of the BMS500-AAM018-1CSXRC unit.
Steps for removing the fan and fan motor from the BMS500-AAM018-1CSXRC unit.
Procedure for disconnecting and removing electrical components from the BMS500-AAM018-1CSXRC.
Instructions for removing the compressor from the BMS500-AAM018-1CSXRC unit.
Steps for removing the 4-way valve from the BMS500-AAM018-1CSXRC unit.
Instructions for removing the expansion valve from the BMS500-AAM018-1CSXRC unit.
Instructions for removing outer panels from BMS500-AAM027 series units.
Steps for removing the fan and fan motor from BMS500-AAM027 series units.
Procedure for removing electrical components from BMS500-AAM027 series units.
Instructions for removing the fan assembly from BMS500-AAM036/048 series units.
Steps for removing outer panels from BMS500-AAM036/048 series units.
Procedure for removing electrical components from BMS500-AAM036/048 series units.
Instructions for removing the compressor from BMS500-AAM036/048 series units.
Steps for removing the 4-way valve from BMS500-AAM036/048 series units.
Instructions for removing the expansion valve from BMS500-AAM036/048 series units.
