Nissan Micra Heater Air Flow & Component Layout Diagram (Service Manual HA-2)

This is page HA-2 from a factory service manual, titled "Air Flow and Component Layout, Air Flow." It illustrates how the heating/ventilation (HVAC) system distributes air through the vehicle. A top isometric drawing of the dashboard shows numbered arrows for the three air outlet paths: ① defroster/ventilator outlets, ② foot outlets, and ③ side ventilator outlets. Three cutaway diagrams of the heater unit show internal air routing for each mode. The Defroster diagram labels the ventilator door, air mix door, heater duct, outside air inlet, heater core, foot and defroster door, and intake door, with arrows marked "① To defroster." The Ventilation diagram shows outside air routed "③ To ventilator." The Foot diagram shows recirculating air directed "② To foot." Each mode includes a drawing of the dash control panel showing the correct positions of the air control lever, intake lever, temperature control lever (COLD-HOT), and fan lever (OFF 1 2 3 4). A footnote states "Some switches have three speeds." Illustration reference code RHA001 appears at the bottom. Readers can learn heater box component names and how the control levers should be set to achieve defrost, ventilation, or foot-level airflow.