General, Technical Data Refrigerant R134A General Information

• 00 General, Technical Data
  • Safety Precautions
    • Notes
    • Safety Precautions When Working On A/C Systems
    • Safety Precautions When Working On The High-Voltage System
    • Safety Precautions When Working Near High-Voltage Components
    • Safety Precautions When Tow-Starting Or Towing
  • Repair Information
    • Cleanliness Guidelines When Working On The High-Voltage System
  • A/C System, General Information
    • Additional Information Sources
    • A/C Technology Basic Principles
      • Physical Principles
      • Heat Transfer
      • Pressure And Boiling Point
    • Refrigerant R134A Vapor Pressure Table
    • Refrigerant R134A
      • Refrigerant R134A Physical Data
      • Critical Point
      • Refrigerant R134A Environmental Information
    • Refrigerant R134A Characteristics
      • Commercial Names And Designations
      • Color
      • Vapor Pressure
      • R134A Physical Characteristics
      • Affect On Metal
      • Critical Temperature/Pressure
      • Water Content
      • Charge Factor
      • Evidence Of Leaks
    • Refrigerant Oil
      • Notes
      • Refrigerant Oil Properties
    • Comfort
      • Notes
      • Environmental Information
    • A/C System Operation
    • Safety Precautions
      • General Safety Precautions
      • Product Characteristics
      • Handling Refrigerant
      • Protective Eyewear
      • Protective Gloves And Clothing
      • Fluid Refrigerant And Skin Precaution
      • Do Not Breath In Refrigerant Vapor
      • Smoking Hazard
      • Welding And Soldering On Refrigeration Systems
      • Pungent Odor
      • First Aid
      • Handling Pressure Vessels
      • Not Warming Above 50 °C (122 °F)
      • Heating Warning
      • Empty Containers
      • Extraction And Charging System Safety Regulations
    • Safety Precautions When Working On A/C System And When Handling Refrigerant R134A
    • Refrigerant Circuit, General Precautions
      • Notes
      • O-Ring
      • After Charging A/C System And Before Activating A/C System
  • Refrigerant Circuit General Information
    • Refrigerant Circuit Components
      • Refrigerant Circuit Component Arrangement
      • A/C Compressor With A/C Clutch:
      • A/C Compressor Without Magnetic Clutch
      • A/C Without Magnetic Clutch With Torsion-Elastic Clutch
      • Electrically-Driven A/C Compressor For High Voltage System
      • Condenser
      • Evaporator
      • Reservoir
      • RESTRICTOR
      • Receiver/Dryer
      • Expansion Valve
      • O-Ring
      • Refrigerant Circuit Pipes And Hoses
      • Pressure Relief Valve
    • Refrigerant Circuit Design
      • Refrigerant Circuit With Expansion Valve And Evaporator
      • Refrigerant Circuit With RESTRICTOR And Reservoir
    • Refrigerant Circuit Extraction And Filling Valves For Service Station Couplings
      • Evacuating And Charging Valve With SCHRADER Valve
      • Evacuating And Charging Valve, High Pressure Side
      • Evacuating And Charging Valve, Low Pressure Side
    • Switches And Sensors On Refrigerant Circuit And Connections
      • A/C Refrigerant High Pressure Switch -F23-
      • Magnetic Clutch High Pressure Switch -F118-
      • A/C Refrigerant Low Pressure Switch -F73-
      • Refrigerant Circuit Connections With Valve For Switches
      • A/C Pressure Switch -F129-
      • High Pressure Sensor -G65-
      • A/C Pressure/Temperature Sensor -G395-
      • A/C Compressor Regulator Valve -N280-
    • Electrical Components Not On Refrigerant Circuit
      • A/C Programmer -J127-
      • Coolant Fan Control Module -J293-
      • A/C Evaporator Temperature Switch -E33-
      • Evaporator Vent Temperature Sensor -G263- Or Evaporator Temperature Sensor -G308-
    • Refrigerant Circuit Pressures And Temperatures
    • Refrigerant Circuit With Expansion Valve
    • Refrigerant Circuit With RESTRICTOR And Reservoir
    • Pressure Gauge, Tests And Measurements
      • Notes
      • Pressure Gauge Uses
    • A/C Service And Recycling Units
      • Extraction System Group Classifications
      • Charging Systems Not Requiring A Permit
    • Refrigerant Circuit Repair Information
  • Laws And Regulations
    • Laws And Regulations
    • Recycling And Disposal Regulations
      • Notes
      • Refrigerant and Refrigerant Oil Disposal
    • Refrigerant Circuit, Converting R12 To R134A And Servicing
    • Refrigerant, Keeping Records
  • Refrigerant Circuit
    • A/C System Repair Information
    • Refrigerant Circuit, Converting R12 To R134A
  • WORKING WITH A/C Service Station
    • Important Information When Working With A/C Service Station
    • A/C Service Station, CONNECTING FOR MEASURING AND TESTING
    • Refrigerant Circuit, Discharging With A/C Service Station
    • Refrigerant Circuit, Evacuating With A/C Service Station
    • Refrigerant Circuit, Charging With A/C Service Station
    • A/C System, Operating After Charging
    • Refrigerant, Filling In A/C Service Station
    • A/C Service Station, Discharging
  • Refrigerant Circuit, Detecting Leaks
    • Searching For Refrigerant Circuit Leaks With Compressed Air Or Nitrogen
    • Refrigerant Circuit, Tracing Leaks, With Electronic Leak Detector :VAG1796
    • Refrigerant Circuit, Tracing Leaks, With Leak Detection System :Vas6196 Or Leak Detection Kit :Vas6201A Or Succeeding Model
      • Notes
      • Leak Detection Additive, Filling, Empty Refrigerant Circuit
      • Refrigerant Circuit, Detecting Leaks using UV Lamp VAS6196/4
  • Refrigerant Circuit, Removing Contaminants
    • Vehicles With A High-Voltage System (Hybrid Vehicles)
    • Refrigerant Circuit, Cleaning With Compressed Air And Nitrogen
      • Notes
      • Refrigerant Circuit, Blowing Through
    • Refrigerant Circuit, Flushing With R134A Refrigerant
      • Notes
      • Flushing Procedure Sequence (Sequence Occurs Automatically According To The Program)
        • Notes
        • Flushing Circuit Block Diagrams
        • Electrically-Driven A/C Compressor, Flushing
        • Adapter For Assembling Flushing Circuit
  • Concerns
    • Possible Refrigerant Circuit Concerns
      • Test Requirements
      • Possible Concerns
    • Odor From The Heater And A/C Unit
      • Odor From Evaporator Or Heat EXCHANGER?
      • Ultrasound A/C Cleaner :Vas6189B
      • Evaporator, Cleaning With Suction Feed Spray Gun :VAG1538 And Spray Nozzle
  • A/C Service Station, CONNECTING
    • Refrigerant Circuit, Connection On Low And High Pressure Side
      • A/C Service Station, Connecting For Measuring And Testing
  • Pressures, Checking
    • Refrigerant Circuit Pressures, Checking (With A/C Service Station)
      • Test Requirements
      • Pressures, Checking
      • Compressor Types, Checking Pressures
    • Checking With RESTRICTOR And Reservoir, With Internally Regulated A/C Compressor
      • Notes
      • Specified Values
    • Checking With Expansion Valve And Receiver/Dryer, With Internally Regulated A/C Compressor
      • Notes
      • Specified Values
    • Checking With Expansion Valve And Receiver/Dryer, Without Regulated A/C Compressor
      • Test Requirements
      • Checking
      • Specified Values
    • Checking With RESTRICTOR, Reservoir And A/C Compressor Regulator Valve -N280-, Externally Regulated A/C Compressor
      • Notes
      • Specified Values
    • Checking With Expansion Valve, Receiver/Dryer And A/C Compressor Regulator Valve -N280-, Externally Regulated A/C Compressor
      • Specified Values
    • With Expansion Valve, Receiver/Dryer And Electrically-Driven A/C Compressor
  • Components, Replacing
    • General Information
    • Leaking Or Damaged Components Except A/C Compressor, Reservoir Or Receiver/Dryer
      • Empty Refrigerant Circuit
      • There Is Still Refrigerant In The Refrigerant Circuit
    • A/C Compressor, Replacing
      • Flushing Not Necessary
      • Leaks Or Internal Damage, For Example Noises Or No Output
    • Receiver/Dryer Or Reservoir And RESTRICTOR, Replacing
      • Contaminants Removed From Refrigerant Circuit
      • Replacing Reservoir, No Contaminants, No Loss Of Refrigerant
  • Tools And Testing Equipment
    • Testing Equipment, Tools And Materials
      • Commercially Available Tools And Materials