4 4 I I l f x Jew es l X m V r Q Q V I Q Z I Q jg x H Q 0 HI R GM9 32 1234 1977 B TYPICAL SEMI AUTOMATIC HEATER AND AIR CONDITIONING CONTROL 1 SWITCH A C Control Select Rotary 4II 4 I 9 275 2 LEVER A C Control Select I I I I 9 278 3 VALVE ASM A C Control 9 280 4 SLIDE ASM Control Valve Drive 9 273 5 KNOB Select Temperature Control 9 278 6 KNOB Blower Switch 9 278 7 DIAL KIT A C Control 9 279 6 LEVER Temperature 9 278 9 CAM ASM Cable Drive Control 9 278 10 SWITCH Blower Control 9 275 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVRDLET 1DA 9 78 asv 9 000 GROUP