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. Controls on the front seats
Fig. 39 Front left seat controls First read and observe the introductory information and safety warnings The controls are mirrored for the front right-hand seat.   Function Action ① Pushing the front seat forw ...

Volkswagen Touran Service Manual. Run-Flat Tire PAX, Examining
Pay special attention to the following criteria when examining the tire: Surface erosion or marbling on the inner side (pressure was too low or insufficient for the load)     ...

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