Ch 6 page 35
ELECTRICAL SYSTEM
SHOP MANUAL
AIR CONDITIONING MODE
Pushing A/C engages / disengages the compressor clutch.
When the A/C symbol appears on the display, then the cooling sys-
tem will be in operation. Conversely when the ECON symbol is lit, the
compressor is turned off.
The automatic temperature controller will further monitor the system
to hold the cab temperature in line with the set temperature, by mak-
ing use of the fresh air and the heater capacity.
If cooling is required press A/C or AUTO.
Note: When the outside temperature is below +3°C, the air condition-
ing system is disengaged to protect the compressor.
When pushing resirculate “7”, the actuator control device changes
the state of the air intake.
When the symbol appears on the screen, the HVAC system operates
with recirculation air from the
cab only.
When the recycle symbol does not show up on the screen, the HVAC
system operates with 80%
recirculation and 20% fresh air. By manually changing the recircula-
tion status, the system continues controlling the cab temperature,
except when “AUTO” symbol is turned off.
When pressing EXT for less of 2 seconds, the external temperature
value will be shown on display for about 6 seconds.
You will know, when the EXT and symbols shown on figure is lit, that
the external temperature value is showing up on the display. When
the external temperature is close to 0°C, the symbol is lit to indicate
the possibility of ice forming. When pressing for 3 seconds at least,
the internal temperature value will be shown on display for about 6
seconds.
6
7
RESICULATION OR FRESH AIR MODE
OUTSIDE TEMPERATURE DISPLAY
8
Figure 19
Figure 23
Figure 19
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