VW Touran manuals

Volkswagen Touran Service Manual: Pressure and Boiling Point

The boiling point given in tables for a liquid is always referenced to an atmospheric pressure of 1 bar (14.5 psi). If the pressure acting on a fluid changes, its boiling point also changes.
For example, water boils at a lower temperature the lower the pressure.
The vapor pressure curves for water and refrigerant R134a show that, at constant pressure, reducing the temperature changes vapor to liquid (in the condenser) or that reducing the pressure causes the refrigerant to change from liquid to vapor (evaporator).
   
Vapor pressure curve of water
A -  fluid
B -  Gaseous
C -  Vapor pressure curve of water
1 -  Pressure acting on liquid in bar (psi)
2 -  Temperature in C (F)
  Pressure and Boiling Point
Vapor pressure curve of refrigerant R134a
A -  Fluid
B -  Gaseous
D -  Vapor pressure curve of refrigerant R134a
1 -  Pressure acting on liquid in bar (psi)
2 -  Temperature in C (F)
  Pressure and Boiling Point
    Physical Principles
    The four known states of water also apply to air conditioning system refrigerants. 1 -  gaseous (invisible) 2&n ...

    Refrigerant R134a Vapor Pressure Table
    The vapor pressure table for every refrigerant is published in literature for refrigeration system engineers. This table makes it possible to determine the vapor pres ...

    Other materials:

    Volkswagen Touran Owners Manual. Tyre monitor display
    Fig. 158 In the centre console or in the stowage compartment on the front passenger side: button for the tyre monitor display First read and observe the introductory information and safety warnings The tyre monitor display uses data from the ABS sensors and other functions to check the sp ...

    Volkswagen Touran Owners Manual. Changing the wheel
    Fig. 210 Changing the wheel: removing the wheel bolts with the screwdriver handle First read and observe the introductory information and safety warnings Removing the wheel Read the checklist   . Loosen the wheel bolts   . Jack up the vehicle   . Using the hexa ...

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