Komatsu ecot3 WA430-6 Operation & Maintenance Manual page 146

OPERATION
CONTROL METHOD
COOLING OPERATION
1. Press main power switch (1) of the air conditioner to turn the
power ON.
2. Press fan switch (2) and set the air flow to "Hi".
3. Press temperature control switch (3) to set to the desired
temperature.
4. Press air conditioner switch (4) to turn the air conditioner
switch ON.
5. Press RECIRC/FRESH selector switch (5) to select RECIRC.
6. Press mode selector switch (6) to set the vents to FACE.
7. When the temperature inside the cab goes down, use the
temperature control switch and the fan switch to set to the
desired temperature.
8. When the AUTO switch is pressed, the temperature and
location of the vents are automatically selected.
REMARK
Note that if the temperature control switch is pressed to set the temperature to the lowest position, and the air
conditioner is run for a long time with the air flow at "Lo", in rare cases, the evaporator may freeze.
If it freezes and no cold air comes out, turn the air conditioner switch OFF, raise the temperature setting, run for a
short time with the air flow at "Hi", then turn the air conditioner switch ON again.
HEATING OPERATION
1. Press main power switch (1) of the air conditioner to turn the
power ON.
2. Press fan switch (2) and set the air flow to "Hi".
3. Press temperature control switch (3) to set to the desired
temperature.
4. Press RECIRC/FRESH selector switch (4) to select FRESH.
5. Press mode selector switch (5) to set the vents to FOOT.
6. When the temperature inside the cab goes up, use the
temperature control switch and the fan switch to set to the
desired temperature.
7. When the AUTO switch is pressed, the temperature and
location of the vents are automatically selected.
REMARK
The heating uses the heat from the engine cooling water, so it is effective only when the cooling water is hot.
EXPLANATION OF COMPONENTS
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