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. Wheel cover
    Fig. 204 Removing the wheel covers First read and observe the introductory information and safety warnings Removing the wheel covers Take the box spanner and wire hook from the tool kit   . Insert the wire hook into one of the holes in the wheel cover. Push the box spanner t ...

    Volkswagen Touran Owners Manual. Test after driving for 10 minutes
    First read and observe the introductory information and safety warnings Re-connect the tyre filler hose   and check the tyre pressure on the tyre pressure monitoring display ⑥. 1.3 bar (19 psi / 130 kPa) and lower: Do not drive on! The tyre cannot be sealed sufficiently with the b ...

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