How Do I Learn Air Conditioner Repair?
This book is suitable for elementary, self-study and skills improvement personnel who are engaged in air conditioner maintenance. It is also suitable for after-sales service personnel. It can also be used as a reference book for air-conditioning related students in secondary vocational schools.
Air conditioner repair can be learned soon
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- Book title
- Air conditioner repair can be learned soon
- Author
- He Yingjun, Tu Bo
- ISBN
- 9787111365693
- Pages
- 238
- Publishing house
- Machinery Industry Press
- date of publish
- 2012-3-1
- Framing
- paperback
- Open
- 16K
- Word count
- 381000
- Paper
- Offset paper
- This book is suitable for elementary, self-study and skills improvement personnel who are engaged in air conditioner maintenance. It is also suitable for after-sales service personnel. It can also be used as a reference book for air-conditioning related students in secondary vocational schools.
- brief introduction
- This book graphically introduces the basic principles, disassembly methods, component recognition and testing, maintenance ideas, and maintenance methods of traditional fixed-frequency air conditioners and new energy-saving inverter air conditioners, as well as the installation and removal methods of air conditioners. The CD-ROM attached to this book contains four parts of the use of tools, basic operations, air conditioner decomposition and component recognition, and maintenance examples (a total of 20 video operation files). This disc can only be played on a computer and supports automatic playback. If the computer is forbidden to play automatically, just run the "air conditioning maintenance video.html" file to open the playback interface. [1]
- Chapter 1 Basic Knowledge of Air Conditioners
- Chapter 1 Learn about the cooling and heating principles and classification of air conditioners
- 1.1 Refrigeration principle and refrigeration cycle of air conditioner
- 1.2 Heating principle and heating cycle process of air conditioner
- 1.3 Classification of air conditioners
- Chapter 2 Tools and Equipment for Air Conditioner Maintenance
- 2.1 Tools for repairing the air conditioner
- 2.2 Common Consumables and Accessories for Repairing Air Conditioners
- Chapter 3 Pipe Processing and Gas Welding Involved in Air Conditioner Maintenance
- 3.1 Master the pipeline processing involved in air conditioner maintenance
- 3.2 Master the gas welding methods required to repair the air conditioner
- Chapter 2 Fixed Frequency Air Conditioner Maintenance
- Chapter 4 Disassembling the Fixed Frequency Air Conditioner, Recognizing and Testing the Parts
- 4.1 Remove the casing of the outdoor unit and become familiar with the internal structure
- 4.1.1 Disassembly techniques of split air conditioner
- 4.1.2 Remove the casing of the outdoor unit, observe the internal structure and the installation position and connection relationship of each component
- 4.2 Disassembly, recognition and inspection of each component of the outdoor unit
- 4.2.1 Disassembly, recognition and detection of terminal blocks and capacitors
- 4.2.2 Disassembly, recognition and testing of the compressor
- 4.2.3 Disassembly, recognition and inspection of four-way directional valve assembly
- 4.2.4 Disassembly, recognition and inspection of axial fan blades
- 4.2.5 Disassembly, recognition and testing of outdoor fans and supports
- 4.2.6 Disassembly and understanding of outdoor heat exchanger, drying filter, check valve, capillary tube and globe valve
- 4.3 Disassembly, Recognition and Inspection of Parts of Split-Wall-mounted Air Conditioner Indoor Unit
- 4.3.1 Disassembly, recognition and inspection of air filters
- 4.3.2 Disassembly of the casing and knowledge and inspection of related components such as heat exchangers
- 4.3.3 Disassembly, recognition and inspection of drainage channel and outlet grid assembly
- 4.3.4 Disassembly of electrical parts (distributed on the right side of the indoor unit) and recognition of related components
- 4.4 Disassembly and recognition of cooling and heating components of split cabinet air conditioner
- 4.4.1 Decomposition, component recognition and detection of outdoor unit of split cabinet air conditioner
- 4.4.2 Decomposition and component recognition of indoor unit of split cabinet air conditioner
- Chapter 5 Principles and Detection of Electronic Control System of Fixed Frequency Air Conditioner
- 5.1 Composition of electric control system for fixed-frequency air conditioner
- 5.2 Power supply part of the fixed-frequency wall-mounted air conditioner
- 5.2.1 Typical circuit of the power supply part of the fixed-frequency wall-mounted air conditioner
- 5.2.2 Typical Circuit Explanation
- 5.2.3 Understanding and testing of power supply circuit components
- 5.3 Microprocessor and its three conditions (three elements) circuit for normal operation
- 5.3.1 Microprocessor Introduction
- 5.3.2 Comparison of the schematic diagram of the three elements of the microprocessor and the physical diagram
- 5.3.3 Understanding and testing of key components of the three-element circuit of the microprocessor
- 5.4 Microprocessor input circuit
- 5.4.1 Infrared remote control signal receiving and transmitting circuit
- 5.4.2 Sensor input circuit
- 5.4.3 Input circuit of emergency switch (push-button switch)
- 5.4.4 Overcurrent protection circuit
- 5.5 Microprocessor Output Circuit
- 5.5.1 Control circuit of compressor, outdoor fan, four-way valve, electric heater
- 5.5.2 Control circuit of stepping motor
- 5.5.3 Control circuit of indoor fan
- 5.6 Electric control system of split cabinet air conditioner
- Chapter 6 Leak Detection, Evacuation, and Refrigerant Filling of Air Conditioners
- 6.1 Leak detection
- 6.2 Evacuation
- 6.3 Charge refrigerant
- Chapter 7 Air Conditioner Installation and Relocation
- 7.1 Piping settings for installing air conditioners
- 7.1.1 Read the installation and operation manual carefully
- 7.1.2 Precautions for piping installation of air conditioner installation
- 7.2 Installation of indoor unit
- 7.2.1 Installation of split wall-mounted air conditioner indoor unit
- 7.2.2 Perforating walls
- 7.2.3 Installation of indoor unit
- 7.2.4 Installation of indoor unit of split cabinet air conditioner
- 7.3 Outdoor unit installation
- 7.3.1 General installation methods
- 7.3.2 Installation method
- 7.3.3 Piping connection of indoor and outdoor units
- 7.3.4 Exhaust the air in the connecting pipes of indoor and outdoor units
- 7.3.5 Connection of indoor and outdoor unit connection cables and outdoor unit terminals
- 7.3.6 Test
- 7.4 Air conditioner transfer
- Chapter 8 Maintenance Methods and Maintenance Ideas of Fixed Frequency Air Conditioners
- 8.1 Inspection methods
- 8.2 Inspection ideas and procedures
- Chapter 9 Troubleshooting Examples of Fixed Frequency Air Conditioners
- 9.1 Maintenance of electrical control part of fixed frequency air conditioner
- 9.2 Use of universal replacement board for air conditioner
- 9.2.1 Understanding the general replacement board for air conditioners
- 9.2.2 Method of replacing the original board with the general replacement board of the air conditioner
- 9.3 Maintenance Examples of Fixed Frequency Air Conditioner Refrigeration System
- 9.3.1 Overhaul example of poor refrigeration effect
- 9.3.2 Maintenance Examples of Compressor Mechanical Failure
- 9.3.3 Troubleshooting example of normal cooling but no heating failure in heating mode
- 9.3.4 Examples of maintenance of drainage pipes
- Chapter 3 Maintenance of Inverter Air Conditioners
- Chapter 10 Maintenance Basics of Inverter Air Conditioners
- 10.1 Basic concepts of inverter air conditioners
- 10.2 Basic principles of inverter air conditioners
- 10.2.1 Method of motor frequency conversion speed regulation
- 10.2.2 Control system composition of inverter air conditioner
- 10.2.3 Basic Principles of AC Variable Frequency Speed Regulation
- 10.2.4 Basic Principles of DC Frequency Conversion Speed Regulation
- 10.2.5 Comparison of AC inverter air conditioner and DC inverter air conditioner
- 10.3 Recognition and inspection of disassembly and components of inverter air conditioner
- 10.3.1 Disassembly of outdoor unit and component recognition
- 10.3.2 Understanding Electronic Expansion Valves
- 10.3.3 Understanding various sensors
- 10.3.4 Understanding chokes
- 10.3.5 Understanding DC Inverter Compressors
- 10.3.6 Removing the DC Fan Motor
- 10.4 Disassembly of indoor unit and related components
- Chapter 11 Inverter Air Conditioner Control Circuit and Maintenance
- 11.1 Inverter indoor unit circuit
- 11.1.1 Memory Circuit
- 11.1.2 Switching Power Supply
- 11.2 Communication circuit between indoor unit and outdoor unit
- 11.2.1 Typical Communication Circuit
- 11.2.2 Introduction to Communication Rules
- 11.2.3 Detection of communication circuits and component recognition
- 11.3 Outdoor unit circuit
- 11.3.1 310V DC forming circuit
- 11.3.2 Switching Power Supply
- 11.3.3 Microprocessor, frequency conversion module and compressor circuit
- Chapter 12 Troubleshooting Ideas for Common Malfunctions of Inverter Air Conditioners
- 12.1 Maintenance characteristics of inverter air conditioner
- 12.1.1 Comparison of Frequency Converter Air Conditioner and Fixed Frequency Air Conditioner Maintenance
- 12.1.2 Operation method of setting inverter air conditioner to constant frequency operation
- 12.1.3 Fault code of inverter air conditioner
- 12.1.4 Precautions for maintenance of inverter air conditioner
- 12.2 Maintenance ideas for common faults of inverter air conditioners
- Chapter 13 Troubleshooting Examples of Common Malfunctions of Inverter Air Conditioners
- Example 1 An inverter air conditioner does not light up, the buzzer does not sound, and the remote control fails during a thunderstorm.
- Example 2 After a variable frequency air conditioner is turned on, the indoor fan can run but does not cool. There is a fault code, but the meaning is unknown.
- Example 3 After a brand KFR.3501GW / BP inverter air conditioner is turned on, the indoor fan can continuously run, and it can blow out cold air intermittently, the overall cooling effect is poor, there is a fault code, I do not know its meaning
- Example 4 After the KFR.5001LW / BP inverter air conditioner of a certain brand is turned on, the indoor unit can run normally, but it is not cooled at all and has a fault code.
- Example 5: Sharp AY.249 inverter air conditioner outdoor unit fan runs normally, the compressor will automatically stop after 10s start, self-check lamp shows abnormal DC overcurrent
- Example 6 Haier KFR.50LW / BPF inverter air conditioner blowing hot air under cooling
- Example 7: Haier KFR.25GW × 2 / BP inverter air conditioner has the phenomenon that the power light is off, the timing light is off, the running light is flickering, and the remote control fails.
- Example 8 Hisense KFR.2608GW / BP inverter air conditioner does not heat, the indoor and outdoor fans work immediately after starting, and stop after a while
- Example 9 After the Hisense KFR.3501GW / BP inverter air conditioner is turned on, the indoor fan can run, the cooling effect is poor, and the fault code displays "overcooling protection"
- Example 10 The beautiful KFR.35GW / BPY.R inverter air conditioner is powered on and cannot be started, and the fault code "E1" is displayed
- Example 11 Midea KFR.50LW / FBPY inverter air conditioner does not cool after turning on, and displays fault code "09"
- Example 12 Hisense KFR.7001LWBP inverter air conditioner immediately jumps off when closed
- Example 13 Chigo's KFR.30GW / BP inverter air conditioner cannot start, and the fault light flashes
- Example 14 The beautiful KFR.35GW / BPY.R inverter air conditioner does not work, and the fault code "E1" is displayed