. OPERATION EXPLANATION OF COMPONENTS of the air the top of the 3 - 78 AIR CONDITIONER SWITCH This switch ( 2) is used to start or stop the cooling o r dehumidifying function. When the fa n switch is turned O N and the air condition er swit ch is pressed, the indicator lamp abov e the switch ligh ts up. When the switch is pre ssed again, the switc h is turned OFF and th e indicator lamp goes o ut. MODE SELECTOR SWITCH the vents. This switch (3) is used to select The followin g five vent modes ar e available: FAC E, FACE/FOOT, FOOT, FOO T/DEF, DEF. witch is pressed, the indicator lamp above the switch e.
When the s lights up to display the vent mod FRESH/RECIRC SELECTOR SWIT This switch (4) is used to selec inside the ca b or intake of fresh air from outside. When the s switch lights Recirculatio n of air inside cab Press this s witch (B) to use only the air inside the cab. Use th is position to carry out rapid heating or cooling of the cab or when the outside air is dir ty. Intake of fre Press this s witch (C) to carry out heating or coolin g with fresh air take n in f rom the outside .
Use this position when fresh air is t aken in from outside the cab, or when removing t he mist f rom the cab window REMARK When fresh air is taken into the c ab, air pressure in the c ab inc reases, whic h prevents the dust from entering. When neither heat ing nor cooling is needed, bring in clean fresh air, with your preferred air flow, to prevent dust from cab. our entering the