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Bentley Volkswagen.Golf.Jetta.R32.Official.Factory.Repair.Manual.1999-2005

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A/C refrigerant system, servicing<br />

Página 41 de 51<br />

87-120<br />

Pressure and temperature specifications<br />

Refer to pages Page 87-118 and Page 87-119 for component identification.<br />

Component<br />

1 - Evaporator, inlet to<br />

outlet<br />

2 - Low pressure<br />

service valve<br />

3 - Compressor, low<br />

pressure side<br />

4 - Compressor, high<br />

pressure side<br />

Refrigerant<br />

state<br />

Approximate<br />

pressure (bar/psi)<br />

Approximate<br />

temperature<br />

Vapor to Gas -7 C (19 F) 2)<br />

Gas 1.2 bar (17.4 psi) 1)<br />

Gas<br />

5 - Condenser Gas<br />

-1 C (30 F)<br />

Gas 65 C (149 F)<br />

to Vapor 55 C (131 F) at<br />

outlet<br />

to Liquid<br />

6 - Receiver drier Liquid<br />

7 - Sight glass (if<br />

equipped)<br />

8 - High pressure<br />

service valve<br />

14 bar (203 psi)<br />

Liquid 55 C (131 F)<br />

Liquid<br />

9 - Expansion valve Liquid to<br />

Vapor<br />

Inlet: 14 bar (203 psi)<br />

Outlet: 1.2 bar (17.4<br />

psi)<br />

Inlet: 55 C (131<br />

F)<br />

Outlet: -7 C (19<br />

F)<br />

1) Pressure maintained in the refrigerant system by the variable displacement<br />

compressor despite variables in temperature, load and engine speeds (RPM).<br />

2) Temperature maintained in the refrigerant system by the variable displacement<br />

compressor despite variables in temperature, load and engine speeds (RPM).<br />

http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Next&type=repair&id=...<br />

13/2/<strong>2005</strong>

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