Vintage Air 1964 CHEVY IMPALA GEN IV w/ FACTORY AIR, Manual

    904064 REV A 7/22/08, 1964 IMPALA w/ AC GEN IV EVAP INSTR PG 22 OF 25

1964 IMPALA 

w/ AC

22

OPERATION OF CONTROLS

NOTE: WHEN BATTERY POWER IS FIRST CONNECTED TO THE ECU, 
THE COMPUTER GOES THROUGH AN INITIALIZATION SEQUENCE. 
THIS INITIALIZATION MAY TAKE UP TO 30 SECONDS. DURING 
INITIALIZATION THE BLOWER WILL NOT OPERATE, BUT THE DOORS 
INSIDE THE UNIT WILL BE OPERATING.  A LOW BATTERY OR 
DISCONNECTING THE BATTERY MAY ALSO TRIGGER A RE-INITIALIZATION.  
DURING START UP, A LOW BATTERY MAY DROP BELOW 7 VOLTS, 
TRIGGERING RE-INITIALIZATION

.  

BLOWER SPEED

SLIDE THE FAN LEVER

UP OR DOWN

TO SELECT DESIRE 

FAN SPEED

(SLIDE LEVER ALL THE WAY 

DOWN FOR MAXIMUM

FAN SPEED)

BLOWER SPEED

SLIDE THE FAN LEVER

UP OR DOWN TO 

SELECT DESIRE FAN 

SPEED (SLIDE LEVER ALL 

THE WAY DOWN 

FOR MAXIMUM

FAN SPEED)

BLOWER SPEED

SLIDE THE FAN LEVER

UP OR DOWN TO 

SELECT DESIRE FAN 

SPEED (SLIDE LEVER ALL 

THE WAY DOWN 

FOR MAXIMUM

FAN SPEED)

BLOWER SPEED

THIS LEVER  CONTROLS

THE BLOWER SPEED,

FROM OFF TO HI

DEFROST MODE

HEAT MODE

MODE

LEVER

THERMOSTAT

LEVER

SYSTEM OFF

A/C MODE

BLOWER 

SPEED

NOTE: 
ORIGINAL BLOWER 
SWITCH WILL NOT 
BE USED.

THERMOSTAT LEVER

IN A/C MODE SLIDE THE

TEMP LEVER ALL THE WAY 

UP TO ENGAGE 

COMPRESSOR FOR 

MAXIMUM COOLING.

(SLIDE LEVER UP OR DOWN TO

 ADJUST DESIRED TEMPERATURE)  

THERMOSTAT LEVER

IN HEAT MODE SLIDE THE

TEMP LEVER ALL THE WAY 

DOWN FOR MAXIMUM HEATING.

(SLIDE LEVER UP OR DOWN TO

 ADJUST DESIRED TEMPERATURE)  

THERMOSTAT LEVER

IN DEF MODE SLIDE THE

TEMP LEVER ALL THE WAY 

UP TO ENGAGE COMPRESSOR

 FOR MAXIMUM COOLING.

(SLIDE LEVER UP OR DOWN TO

 ADJUST DESIRED TEMPERATURE)  

THERMOSTAT LEVER

THIS LEVER CONTROLS

THE TEMPERATURE

FROM HOT TO COLD

MODE LEVER

SLIDE THE MODE LEVER ALL THE

WAY UP FOR DASH MODE

MODE LEVER

SLIDE THE MODE LEVER 

TO THE CENTER FOR

 FLOOR  MODE

(SLIDE LEVER UP OR DOWN 

TO BLEND BETWEEN DESIRED 

MODE POSITIONS)

MODE LEVER

SLIDE THE MODE LEVER 

ALL THE WAY DOWN

 FOR DEFROST MODE

(SLIDE LEVER UP OR DOWN 

TO BLEND BETWEEN DESIRED 

MODE POSITIONS)

MODE LEVER

THE MODE POSITIONS

FROM DASH TO FLOOR

TO DEFROST

THIS LEVER CONTROLS

FAN

MODE

TEMP

FAN

MODE

TEMP

FAN

MODE

TEMP

FAN

MODE

TEMP

FAN

MODE

TEMP

NOTE: CONTROLS MUST BE CALIBRATED PRIOR TO FIRST OPERATION- REFER TO CONTROL PANEL 
INSTRUCTIONS