022-00029AE Operation and Maintenance Manual Operating Controls 2-39
2. BLOWER FAN SWITCHES
These switches are used to control the
speed of the blower fan.
A. "LO" Switch - Used for low blower
speed.
B. "MID" Switch - Used for intermediate
blower speed.
C. "HI" Switch - Used for high blower
speed.
NOTE: If you do not select a blower
speed the heater and air
conditioner will not work.
3. TEMPERATURE CONTROL SWITCH
The temperature control consists of 24
stages. A LED is turned "ON" for every
three stages. Whenever pushing it, it
changes in stages. Pushing it continuously,
it changes continuously.
A. "COOL" Switch - Lowers the
temperature.
B. "WARM" Switch - Raises the
temperature.
LED COLOR STATUS
Green LED - Air conditioner. Full
green, maximum operation of
air-conditioner.
Red LED - Heater. Full red,
maximum operation of heater.
4. SELECTION SWITCH FOR WIND
DIRECTION
A. Used to direct air flow to upper
portion of operator’s cab.
ARO0520L
Figure 82
ARO0530L
Figure 83
HBOI320L
Figure 84
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