System Air Flow Description: Floor/Defrost

Fig 1: Identifying FLOOR/DEFROST Air Flow

Courtesy of MAZDA MOTORS CORP.

When FLOOR/DEFROST is selected:

• The air inlet blend door is in the no vacuum position blocking recirculation air and allowing outside air.
• The footwell blend door is at full vacuum allowing air to flow through the footwell ducts.
• The defrost blend door is in the no vacuum position, allowing airflow to both the windshield defroster hose nozzle and side window demister hose nozzle ducts.
• The vent/register blend door is in the no vacuum position.
• The A/C compressor is enabled when FLOOR/DEFROST is selected to dehumidify the air and reduce windshield fogging.
• The blower motor is on.