Chevrolet 10 1971 Series Chassis Service Manual page 29

RECEIVER-
D E H Y D R A T O R
TEMPERATURE
KNOB
Fig. 19— G M Chevrolet System Controls
C O N D E N S E R
Fig. 18— G M Chevrolet System Components
The blower-evaporator unit is located under the glove
compartment as indicated in Figure 18. An air duct,
containing two adjustable outlets and two foot coolers,
delivers air to the driver's side of the vehicle. The
entire unit is attached to the instrument panel and to the
right hand shroud side panel at five locations.
CONTROLS (Fig. 19)
System controls are the AIR knob controlling the three
speed blower motor switch and the TEMP knob which
controls the setting of the thermostatic switch.
operating this system, the Heater must be fully off for
maximum cooling.
Air Knob
Turning the AIR knob clockwise operates the three
speed blower motor.
Temp Knob
T h is knob m ay be regulated to co ntro l the degree of
HEATER AND AIR CONDITIONING 1A-11
B L O W E R -E V A P O R A T O R
A S S E M B L Y
10-30 CHEVROLET TRUCK SERVICE MANUAL
When