Ventilation System - Buick 1995 Century Owner's Manual

MAX:
Provides maximum cooling with the least
amount of work. This setting recirculates much of the
air inside your vehicle
so
it maximizes your air
conditioner's performance and fuel economy.
NORM (Normal):
Use for normal cooling on hot days.
This setting cools outside air and directs it through the
instrument panel outlets.
BI-LEV (Bi-Level): Use this on cool, but sunny days.
This setting brings in the outside air, and directs it in
two ways. The cool air is directed to the upper portion
of your body through the instrument panel outlets, and
warmed 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 Air
Conditioning positions, and in DEF (defrost) when the
outside temperature is above about 40°F (4.5"C).
Ventilation System
VENT:
For mild outside temperatures, when little
heating or cooling is needed, slide the upper lever to
VENT. Air flow is through the instrument panel outlets.
Rotate the control next to the outlets to turn on, adjust or
turn off the air flow. Adjust the lower lever on the
control panel to the temperature desired.
HEATER:
When outside temperatures
are
cold, sliding
the upper lever to HEATER and the lower lever to HOT
will send heated air through the heater ducts, and
some
through the defroster vents. VENT and HEATER are
labeled ECONOMY positions because the air
conditioner compressor doesn't run in these two
settings. This reduces engine load, resulting in improved
fuel economy. If either setting fails to keep you
comfortable, or causes your windows to fog up, slide the
upper lever to one of the Air Conditioning positions, or
to DEF (Defrost).
Defrosting
The DEF setting directs most of the air through the
defroster vents, and some through the heater ducts.
Defogging
To quickly defog the windshield, set the upper lever to
DEF and move the fan switch to HI. Slide the lower
lever to HOT.
In damp, cool weather (temperatures about 45 "-65"F,
7
O
-
18
O
C ) , you can use BI-LEV to defog the side
windows. Set the upper lever to BI-LEV and the fan
switch to HI. Aim the side vents toward the side
windows. For increased air flow to the side vents, close
the center vents.
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