GMC chevrolet camaro 2000 Service Manual page 241

1-144 HVAC Systems - Manual
Description and Operation
Air Distribution System Description
Vacuum regulates air flow through the system.
Depending on the mode selected, the mode valves
mix and direct either cooled, heated, or outside
air through the air ducts. The various modes of
operation are as follows:
Vent
Outside air is delivered through the instrument
570788
panel (IP) outlets to ventilate the vehicle. If preferred,
the air may be warmed by setting the temperature
control knob to the desired setting.
Bi-level
570784
Electrical power is supplied to the blower motor.
Outside air is drawn in and heated (depending on the
position of the temperature control knob). Then the
airflow is split between the IP outlets and the
floor outlet.
HVAC
Heater
570793
Outside air is drawn into .the vehicle, heated . .
(depending on the position of the temperature control
knob) and directed to the floor air outlet. A small
amount of air is routed to the windshield through the
defrost outlet.
Blend
570800
Outside air is drawn into the vehicle, heated
(depending on the position of the temperature control
knob) and split between the defrost outlet and the
floor air outlet.
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