Porsche 928 GTS 1994 Owner's Manual page 56

Important notes:
• The air conditioner operates only with the
engine running.
• When the air conditioner is switched on,
at least one air outlet vent must be
opened, since otherwise the vaporizer
can ice up. The condensate forming
during operation of the air conditioner
escapes through openings at the bottom
of the vehicle.
• The air conditioner must be switched on
briefly at least once a month to lubricate
the seals and bearings of the air condi-
tioner compressor and the expansion
valve. This is particularly important in the
winter when the air conditioner is not
needed. The outdoor temperature must
be above 32° F/0° C.
• Whenever the air conditioner does not
function properly, e. g. no cold air
escapes even though the unit is switched
on, switch it off and immediately see
your Porsche dealer.
The following controls make possible op-
timum adjustment of the unit to your in-
dividual air conditioning desires.
Temperature control - upper lever
The lever provides continuous control for the
temperature in the passenger compartment.
Shoving it to the right raises the temperature.
The value on the temperature scale corresponds
to an average inside temperature.
No automatic temperature control takes place in
program settings
Fan speed control - rotary switch knob
The air volume is controlled by a 4-speed fan.
When the ignition is turned on, the fan automat-
ically operates at low speed, even with the
switch in 0 position. By turning the knob clock-
wise, fan speeds 1 - 4 can be selected to in-
crease the air volume.
Program control - lower lever
There are several programs available in order to
adapt to individual needs with an automatically
controlled air conditioner:
Supply of outside air switched off. For
brief operation, e.g. when
through disagreeable odors. At tempera-
tures above 32° F/0° C the inside air is
additionally dried by the air conditioner
which switches on automatically.
Air flow distribution only through side
window and center air vents.
Air flow distribution through footwell out-
lets. The side and center vents can be
opened optionally.
Air flow distribution through wind-shield
and footwell outlets. The side and center
vents can be opened optionally.
Air flow distribution through wind-shield
outlets. The side and center vents can
be opened optionally.
Automatic air flow distribution for heated
air through windshield outlets and open
side window vents. Heating system and
fan motor are automatically switched on
maximum output and high speed for fast
defrosting or defogging. At temperatures
above 32° F /0° C the inside air is addi-
tionally dried by the air conditioner which
switches on automatically.
passing
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