Chevrolet CAMARO 1979 Service Manual page 133

AUTOMATIC AIR CONDITIONING 1C.9
AUTOMATIC TEMPERATUBE
CONTROL FUNCTIONAL TEST
Control
Setting
System Should Operate
"DEF'
D | A L @ 8 5 -
Air should be delivered out of defroster
outlets at a fixed high blower speed.
Some floor bleed out o{ heater.
" B I - L E V E L "
D|AL @ 85"
Air should be delivered from both the
A/C and heater outlets at a reduced
blower speed. No âir will corne ou1
the defroster outlet.
"Ht"
DtAL @ 65"
Air should be delivered out the A/C
outlets ât a fixed.high blower speed
and cool to cold temperature. The re-
circulating air door should oper (blower
noise increases). Door movement wilt be
slow because of vacuum delây porous plug,
"AUIO"
D I A L @ 8 5 '
Blower speeds should drop iHi M3-M2-Ml-
etc.j. Recirc air door should close (noise
level will drop). Discharge air temperature
should increase. Depending on the temper-
âture in work area, lhe ai. delivery mode
should chânge from the A/C outtets to the
heater outlets,
'LO"
D t A L @ 8 5 "
Air should be delivered at a fixed low
blower speed with immediâte turn on
regardless of engine coolant temperature.
" E C O N O M Y "
D j A L @ 6 5 "
Blower speeds should increase (lV1 M2-iM3-
etc.). Depending on the temperature in the
work area, the âir delivery mode shoLlld
change from the heater outlets to both
heater and A/C outlets or the A/C outlets
only. The A/C compressor should not operate,
" O F F "
D t A L @ 6 5 '
Air should be discharged out the heâter oullet
at a Tixed low blower speed. No A/C compres,
sor operation. Biower will turn on immediately
regardless of engine coolâôt temperature.