Manual

The intake door motor is installed on the intake unit. Using a link it opens and closes the intake door.
When RECIRCULATION switch is at REC (except DEF and D/F modes), the ground line of the motor is switched from intake door motor terminal 3 to 2. This starts the motor because the position switch contacts built into it make current flow. When RECIRCULATION switch is at FRE (except DEF and D/F modes), the ground line is switched from intake door motor terminal 2 to 3. The contacts turn along with the motor. When they reach the non-current flow position, the motor will stop. The motor always turns in the same direction.
RECIRCULATION switch is canceled by MODE switch in DEF and D/F modes.