Vacuum Solenoid Valve HVAC: Description and Operation

AUTOMATIC TEMPERATURE CONTROL (ATC) SOLENOID AND MANIFOLD

The ATC solenoid and manifold:
- is located on the heater core and evaporator core housing near the blower motor.
- uses solenoid-type valves to distributes vacuum to the vacuum control motors and heater control valve based on the settings of the DATC module.