1997 CHEVROLET ASTRO air conditioning

Downloaded from www.Manualslib.com manuals search engine Section 3 Comfort Controls and Audio Systems
In this section, you’ll find out how to operate the comfort control and audio systems offered with your vehicle. Be
sure to read about
the particular systems supplied with your vehicle.
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3 -9 Comfort Controls
Heating/Air Conditioning System
Heating System
Rear Heating System (Option) Rear Air Conditioning System (Option)
Air Conditioning
Heating
Defrosting
Ventilation System
Rear Window Defogger (Option)
Audio Systems
Setting the Clock for Systems without
Automatic Tone Control
Setting the Clock for Systems
with
Automatic Tone Control
AM-FM Stereo 3-1
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AM-FM Stereo with Cassette Tape
Player
(If Equipped)
AM-FM Stereo with Cassette Tape and
Automatic Tone Control
(If Equipped)
Rear Seat Audio
(If Equipped)
AM-FM Stereo
with Compact Disc Player and
Automatic Tone Control (If Equipped)
Playing a Compact Disc
in the Single Remote
Disc Player
(If Equipped)
Theft-Deterrent Feature Understanding Radio Reception
Tips About Your Audio System
Care
of Your Cassette Tape Player
Care
of Your Compact Discs
Fixed Mast Antenna
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Downloaded from www.Manualslib.com manuals search engine Comfort Controls
This section tells you how to make your air system work
for you. Your comfort control system uses
ozone-friendly
R- 134a refrigerant.
With these systems, you can control the heating, cooling
and ventilation
in your vehicle. Your vehicle also has a
flow-through ventilation system described later
in
this section.
Heating/Air Conditioning System
If your vehicle has air conditioning, your heatinghir
conditioning controls will
look like this.
Fan Knob
This control has four positions. To increase airflow,
turn the knob toward
HI. To decrease airflow, move it
toward LO.
Temperature Knob
This knob is next to the fan knob. It selects the
temperature
of the air flowing into your vehicle. Move
the knob clockwise for warmer air. Move the knob
counterclockwise for cooler air.
Function Knob
This knob is next to the temperature knob.
OFF: This setting turns the system off.
MAX A/C: This cools the air the fastest, by
recirculating the inside air. Move the temperature knob
all the way counterclockwise.
A/C: This setting brings in outside air and cools it.
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Downloaded from www.Manualslib.com manuals search engine +.
+# BI-LEVEL: This setting brings in outside air Heating System
through the heater floor vent and the instrument panel
vents. If
you move the temperature knob between hot
and cold, cooler air will come out of the upper vents
while warmer air comes out
of the floor vent. The air
conditioning compressor may operate in this setting
to
cool the air.
+e
/J VENT: The air comes out at the vents on your
instrument panel. The air conditioning compressor will
not run in this position. Adjust the temperature knob for
warmer or cooler air.
+’ HEATER: Most of the air comes out near the
floor. The rest comes
out from the defroster vents under
the windshield and at the front side windows.
we
+’ BLEND: With this setting, the heated outside air
comes out both
the heater vents and defroster vents.
Adjust the temperature knob for warmer or cooler air.
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DEFROST This setting operates the defroster.
Most
of the air comes out near the windshield, with
some going to the floor vents and front side windows.
If your vehicle does not have air conditioning, your
heater controls will
look like this.
Fan Knob
This control has four positions. To increase airflow,
turn the knob toward
HI. To decrease airflow, move it
toward LO.
Temperature Knob
This knob is next to the fan knob. It selects the
temperature of the air flowing into your vehicle. Move
the knob clockwise for warmer air. Move the knob
counterclockwise
for cooler air.
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Downloaded from www.Manualslib.com manuals search engine Rear Air Conditioning System (Option)
You may have rear air conditioning. The rear air
conditioning switch
is located to the right of the heater
controls. Turn the switch toward
HIGH for higher
airflow
in the rear area. Turn the switch to the OFF
position to turn the system off.
Air Conditioning
Before using your vehicle’s air conditioning, open the
windows to clear the vehicle
of hot air. This reduces the
time
it takes for your vehicle to cool down. Then keep
your windows closed for the air conditioner to work at
its best.
You can use MAX A/C with
the temperature knob in the
blue area when it’s really hot outside and you need to
cool the inside air quickly. MAX A/C lets
in only a little
air from the outside.
If you first use MAX A/C, you can then use A/C with
the temperature knob in the blue area, as soon as the
vehicle has cooled down, so outside air will be going
through your vehicle.
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Downloaded from www.Manualslib.com manuals search engine If your vehicle has rear air conditioning, setting it on LO
may enhance the front A/C performance by allowing
trapped refrigerant
in the rear lines to circulate.
The rear air conditioning system will
only send cooled
air
if the front system is on. It can still be used to
circulate air, even if the front system
is off.
When the air conditioning, DEFROST or BLEND is on,
you may notice a slight increase or decrease in engine
speed, due to compressor operation. This
is normal
because the system is designed to cycle the compressor
on and off to keep the desired temperature.
Heating
On cold days, use HEATER with the temperature knob
in the red area. Outside air will be brought in through
the floor outlets. The heater works best if you keep your
windows closed while using it.
If you use the optional engine coolant heater before
starting your engine, your heating system will produce
warmer air faster
to heat the passenger compartment in
cold weather. See “Engine Coolant Heater” in the Index.
Defrosting
Use DEFROST to remove fog or ice from the
windshield quickly in extremely cold conditions. The
temperature knob should be in the red area and the fan
control toward high. The air conditioning compressor
may operate in this setting to dehumidify the air.
The
BLEND setting is useful for cold weather with a
large number of passengers or very humid conditions to
help keep the windshield clear.
Ventilation System
For mild outside temperatures when little heating or
cooling is needed, use VENT to direct outside air
through your vehicle. Air will flow through the
instrument panel vents.
Your vehicle’s flow-through ventilation system supplies
outside air to the inside
of your vehicle when it is
moving. With the side windows closed, air will flow into
the front air inlet grilles at the base
of the windshield,
through
the vehicle and out the rear air exhaust valves.
Outside air will also enter the vehicle when the heater or
the air conditioning fan is running.

Downloaded from www.Manualslib.com manuals search engine Your vehicle has air vents near the center and on the
sides
of the instrument panel that allow you to adjust the
direction and
the amount of airflow inside the vehicle.
Push the vent up or down to direct airflow
to your
preference. Increase or reduce the amount of airflow by
opening and closing the louvers. The vents rotate to
direct
the airflow from side to side. When
you close a vent,
it will increase the flow of air
coming out
of any vents that are open.
If you have rear heating or rear air conditioning, you
will have adjustable vents in the rear of the vehicle to
help direct the airflow. The rear air conditioning vents
are located
in the headliner at the rear of the vehicle.
The rear heating vents are located
next to the second and
third seat
on the driver’s side of the vehicle, near the
floor. You can move the vents to direct the flow
of air, or
close
the vents altogether. When you close a vent, it will
increase the flow of air coming out of any vents that
are open.
Ventilation Tips
0
0
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Keep the hood and front air inlet free of ice, snow or
any other obstruction (such
as leaves). The heater
and defroster
will work far better, reducing the
chance of fogging the inside
of your windows.
When you enter a vehicle
in cold weather, turn the
blower fan to
HIGH for a few moments before
driving off. This helps clear the intake ducts
of snow
and moisture, and reduces the chance of fogging the
inside of your windows.
Keep the air path under
the front seats clear of
objects. This helps air to circulate throughout
your vehicle.
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Downloaded from www.Manualslib.com manuals search engine Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and
then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and
a part devoted to its appearance care.
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6-36 Service
Fuel Fuels
in Foreign Countries
Filling Your Tank
Checking Things Under the Hood
Engine Oil
Engine Cover
Air Cleaner
Automatic Transmission Fluid
All-Wheel Drive Rear Axle
Engine Coolant
Radiator Pressure Cap
Thermostat Power Steering Fluid
Windshield Washer Fluid
Brakes Battery
Bulb Replacement Halogen Bulbs 6-42
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6-68 Windshield Wiper Blade Replacement
Tires Appearance Care
Cleaning
the Inside of Your Vehicle
Cleaning Glass Surfaces
Cleaning the Outside
of the Windshield,
Backglass and Wiper Blades
Cleaning the Outside
of Your Vehicle
Cleaning Tires Finish Damage Underbody Maintenance
Chemical Paint Spotting
Appearance Care Materials Chart
Vehicle Identification Number
(VIN)
Service Parts Identification Label
Electrical System Replacement Bulbs
Capacities and Specifications
Air Conditioning Refrigerants
Normal Maintenance Replacement Parts
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Downloaded from www.Manualslib.com manuals search engine Crankcase Capacity
Quantity* with Filter ........... 4.5 quarts (4.3 L)
After refill, the level must be checked. Do not overfill.
Fuel Tank Capacity
Standard Tank ................. 25 gallons (90 L)
Transmission Capacity
Automatic Transmission
(Drain and Refill)
.......... 5.0 quarts (4.7 L)
Front Axle Capacity
Front Axle .............. ... 2.6 pint (1.2 L)
Rear Axle Capacity
Standard Rear Axle .............. 3.5 pint (1.7 L)
Locking Rear Axle ............... 3.5 pint (1.7 L)
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same.
If the air conditioning system in your vehicle needs
refrigerant, be sure
the proper refrigerant is used.
If you’re not sure,
ask your GM dealer.
Refrigerant should be added only by a qualified
A/C technician.
Air Conditioning Refrigerant Capacity
Type System Quantity*
R- 134a C-60** 2 Ibs. (0.91 kg)
R- 134a C-(j9*** 3 lbs. (1.36 kg)
*All quantities are approximate.
**Front A/C only.
***Front and Rear A/C.
I NOTICE:
I
R-134a refrigerant is not compatible with R-12
refrigerant in an air conditioning system. R-12 in
an R-134a system
will cause compressor failure,
refrigerant oil sludge or poor air conditioning
system performance.
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