Delta 88 V8-350 5.7L DSL VIN N FI (1983)
Control Module HVAC: Description and Operation
Programmer
Programmer assembly, front view
Programmer assembly, rear view
The programmer, Figs. 2 and 3, consists of a compensator assembly, a vacuum motor, a vacuum checking relay, the output linkage and control linkage.
The programmer is mounted on the A/C heater case and is connected to the temperature door by means of a threaded rod from the heater case. There are
three input connections to the programmer.
1. The vacuum connection from the vacuum harness supplies engine vacuum relay.
2. The temperature control cable from the control panel attaches to the control lever of the programmer to position the programmer for the desired
comfort level.
3. The in-car air source hose is connected to the compensator assembly. This provides a sample of in-car air temperature to the programmer, allowing
regulation of air outlet temperature to compensate for temperature changes inside the vehicle.
