Pontiac Sunbird Owner's Manual page 106

I
Air Conditioning System
(OPTION)
he air conditioner and heater work
est if you keep your windows closed
lhile using them. Your vehicle also has
le flow-through ventilation system
escribed later in this section.
mer Controls: The upper lever
hanges the functions of your system.
'he lower lever changes the temperature
f the air coming through the system.
8
: Sets the fan speed. To select the
xce of air you want: move the lever.
'he fan is always running unless the
pper lever is moved to OFF.
Air Conditioning
The upper lever has three air
conditioner settings. On very hot days,
open the windows long enough to let hot
inside air escape. This reduces the
amount of work your air conditioner's
compressor will have to do, which
should help fuel economy.
MAX (Maximum): Use for maximum
cooling. This setting recirculates much
of the air inside your vehicle so it
maximizes your air conditioner's
performance and your vehicle's fuel
economy.
NORM (Normal): Use for normal
cooling on hot days. This setting cools
outside air and directs it through the
instrument panel outlets.
B/L (Bi-Level):
Use on cool, but sunny
days. This setting brings in the outside
air, but directs it in two ways. The cool
air is directed to the upper portion of
your body through the instrument panel
outlets, but slightly warmer air is
directed through the heater ducts and
defroster vents. At times this
temperature difference may be more
apparent than others.
The air conditioner compressor operates
in all A/C positions, and in DEF
(Defrost) when the outside temperature
is higher than about 40°F (4.5"C).
Ventilation
Slide the upper lever to VENT. Air flow
is through the instrument panel outlets.
Set the lower lever to the temperature
desired.
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