Self-Study Programme 271 Phaeton heating and AC.pdf

(2008 KB) Pobierz
Service.
Self-Study Programme 271
The Phaeton
Heating and Air Conditioning System
Design and Function
An outstanding climate
As a luxury performance saloon, the Phaeton is
fitted with a four-zone cabin climate as standard.
Using the 4C (4 Corner) Climatronic, both driver
and passengers can set their own personal
climate regardless of the climate in the other
seats.
The automatic control for each individual
climate zone is provided by the Climatronic
control unit, which also activates a large number
of control motors for vents and temperature
flaps.
The adaptive control includes, for example,
sunlight penetration, air quality and air humidity.
All in all, the air conditioning system improves
driving safety, as concentration and reaction
speed drop as temperature increases.
S274_101
NEW
Important
Note
The Self-Study Programme involves the design
and function of new developments.
The contents are not updated.
Please always refer to the relevant Service Literature
for all inspection, adjustment and repair instructions.
2
Table of contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Design features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Functional features . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
System overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Sensors and actuators. . . . . . . . . . . . . . . . . . . . . . . . . 48
Function diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Self-diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Test your knowledge . . . . . . . . . . . . . . . . . . . . . . . . . . 73
3
Introduction
Operating concept
The functions of the Climatronic are activated via the operating unit of the Infotainment system.
The Infotainment is a central electronic system that manages the wide range of different functions
in the vehicle such as the heating and air conditioning system, car phone, navigation, radio, television
etc.
Front information display and operating unit
The core of the Infotainment system is the front
information display and operating unit in the
dash panel. It can be used to make all the
settings for the heating and
air conditioning system for the front and rear
seats.
The operating elements for climate control
are highlighted in the adjacent illustration.
21.
5°C
MAN
NDR 2
22.
0°C
AUTO
ECON
MANUAL
Other
In the Service Literature, the operating unit is
referred to as the "Front information display and
operating unit control unit".
S271_074
Rear information display and operation unit
In the version illustrated,
this is for adjusting temperatures and
air distribution in the rear compartment as well
as for blower settings.
In the Service Literature, the rear compartment
operating unit is referred to as the "Rear Clima-
tronic control and display unit."
MAN
AUTO
24.
°C
0
MANUAL
22.
°C
0
S271_216
Although the optional extras "sunroof " and "auxiliary heater" are also adjusted using the front
information display and operating unit, they are not described in this Self-Study Programme.
.
4
Ventilation concept
In order to ensure a pleasant climate in the
passenger compartment, the ventilation concept
is split into four basic functions.
●
indirect ventilation
●
direct ventilation
●
defrost function with
window fogging detection
●
automatic and manual
air recirculation function
With this concept, the ventilation and
temperature can be adjusted separately for each
seat.
As the ambient conditions can change
considerably during a journey as regards
temperature or sunlight penetration, it is
possible that, when the air conditioning
mode is running, the basic functions of
indirect ventilation, direct ventilation and
defrost may merge or run simultaneously.
24°C
22°C
18°C
23°C
S271_083
S271_219
5

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin