OPERATION EXPLANATION OF COMPONENTS 4. Press vent selector switch (4) and select the desired vents. When this is done, the display for vent (c) of the display monitor changes according to the selection. 5. Press RECIRC/FRESH selector switch (6) and select recirculation of the air inside the cab (RECIRC) or intake of fresh air from outside (FRESH). STOPPING MANUAL OPERATION Press OFF switch (1). The displays for temperature setting (a) and air flow (b) on the display monitor, and the lamps above auto switch (5) and air conditioner switch (8) go out, and the operation stops. 3-41