Komatsu ecot3 GALEO HM300-2 Operation And Maintenance Manual page 118

Articulated dump truck
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OPERATION
METHOD OF OPERATION
With the FACE vents, it is possible to adjust the direction of the air flow and to turn it on or off.
However, do not set to the FACE mode with the vents closed.
COOLING
1. Press ON/OFF switch (1) to turn on the air conditioner power.
2. Press fan switch (2) to set the air flow to the maximum.
3. Press temperature control switch (3) to lower the temperature.
4. Press air conditioner switch (4) to set to COOLING.
5. Press RECIRC/FRESH selector switch (5) to set to RECIRC.
6. Press mode selector switch (6) to set the vents to FACE.
7. When the temperature inside the cab goes down, set to the
desired temperature and air flow.
NOTICE
If operations are continued for a long time with the air conditioner set to the lowest temperature and minimum air flow, there is
danger that the receiver drier may freeze.
If it freezes and no cold air comes out, stop using the cooling, and set to a higher temperature and the maximum air flow. Run for
a short time under these conditions, then return to the cooling operation.
HEATING
1. Press ON/OFF switch (1) to turn on the air conditioner power.
2. Press fan switch (2) to set the air flow to the maximum.
3. Press temperature control switch (3) to raise the temperature.
4. Press RECIRC/FRESH selector switch (4) to set to FRESH.
5. Press mode selector switch (5) to set the vents to FOOT.
6. When the temperature inside the cab goes up, set to the
desired temperature and air flow.
REMARK
The heating uses the heat from the engine cooling water, so it is effective only when the cooling water is hot.
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